Update to static data

intranode

Grid/DisableWarnings.h

@@ -34,9 +34,6 @@ directory
 
 #if defined __GNUC__ && __GNUC__>=6
 #pragma GCC diagnostic ignored "-Wignored-attributes"
-#endif
-#if defined __GNUC__ && __GNUC__>=6
-#pragma GCC diagnostic ignored "-Wpsabi"
 #endif
 
  //disables and intel compiler specific warning (in json.hpp)

Grid/GridQCDcore.h

@@ -36,7 +36,6 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
 #include <Grid/GridCore.h>
 #include <Grid/qcd/QCD.h>
 #include <Grid/qcd/spin/Spin.h>
-#include <Grid/qcd/gparity/Gparity.h>
 #include <Grid/qcd/utils/Utils.h>
 #include <Grid/qcd/representations/Representations.h>
 NAMESPACE_CHECK(GridQCDCore);

Grid/algorithms/Algorithms.h

@@ -54,7 +54,6 @@ NAMESPACE_CHECK(BiCGSTAB);
 #include <Grid/algorithms/iterative/SchurRedBlack.h>
 #include <Grid/algorithms/iterative/ConjugateGradientMultiShift.h>
 #include <Grid/algorithms/iterative/ConjugateGradientMixedPrec.h>
-#include <Grid/algorithms/iterative/ConjugateGradientMultiShiftMixedPrec.h>
 #include <Grid/algorithms/iterative/BiCGSTABMixedPrec.h>
 #include <Grid/algorithms/iterative/BlockConjugateGradient.h>
 #include <Grid/algorithms/iterative/ConjugateGradientReliableUpdate.h>

Grid/algorithms/CoarsenedMatrix.h

@@ -358,7 +358,7 @@ public:
     autoView( in_v , in, AcceleratorRead);
     autoView( out_v , out, AcceleratorWrite);
     autoView( Stencil_v  , Stencil, AcceleratorRead);
-    auto& geom_v = geom;
+    int npoint = geom.npoint;
     typedef LatticeView<Cobj> Aview;
       
     Vector<Aview> AcceleratorViewContainer;
@@ -380,7 +380,7 @@ public:
       int ptype;
       StencilEntry *SE;
 
-      for(int point=0;point<geom_v.npoint;point++){
+      for(int point=0;point<npoint;point++){
 
 	SE=Stencil_v.GetEntry(ptype,point,ss);
 	  
@@ -424,7 +424,7 @@ public:
     autoView( in_v , in, AcceleratorRead);
     autoView( out_v , out, AcceleratorWrite);
     autoView( Stencil_v  , Stencil, AcceleratorRead);
-    auto& geom_v = geom;
+    int npoint = geom.npoint;
     typedef LatticeView<Cobj> Aview;
 
     Vector<Aview> AcceleratorViewContainer;
@@ -454,7 +454,7 @@ public:
       int ptype;
       StencilEntry *SE;
 
-      for(int p=0;p<geom_v.npoint;p++){
+      for(int p=0;p<npoint;p++){
         int point = points_p[p];
 
 	SE=Stencil_v.GetEntry(ptype,point,ss);

Grid/algorithms/LinearOperator.h

@@ -52,6 +52,7 @@ public:
   virtual void AdjOp  (const Field &in, Field &out) = 0; // Abstract base
   virtual void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2)=0;
   virtual void HermOp(const Field &in, Field &out)=0;
+  virtual ~LinearOperatorBase(){};
 };
 
 
@@ -223,14 +224,9 @@ class SchurOperatorBase :  public LinearOperatorBase<Field> {
     Mpc(in,tmp);
     MpcDag(tmp,out);
   }
-  virtual  void MpcMpcDag(const Field &in, Field &out) {
-    Field tmp(in.Grid());
-    tmp.Checkerboard() = in.Checkerboard();
-    MpcDag(in,tmp);
-    Mpc(tmp,out);
-  }
   virtual void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){
-    HermOp(in,out);
+    out.Checkerboard() = in.Checkerboard();
+    MpcDagMpc(in,out);
     ComplexD dot= innerProduct(in,out); 
     n1=real(dot);
     n2=norm2(out);
@@ -281,16 +277,6 @@ template<class Matrix,class Field>
       axpy(out,-1.0,tmp,out);
     }
 };
-// Mpc MpcDag system presented as the HermOp
-template<class Matrix,class Field>
-class SchurDiagMooeeDagOperator :  public SchurDiagMooeeOperator<Matrix,Field> {
- public:
-  virtual void HermOp(const Field &in, Field &out){
-    out.Checkerboard() = in.Checkerboard();
-    this->MpcMpcDag(in,out);
-  }
-  SchurDiagMooeeDagOperator (Matrix &Mat): SchurDiagMooeeOperator<Matrix,Field>(Mat){};
-};
 template<class Matrix,class Field>
   class SchurDiagOneOperator :  public SchurOperatorBase<Field> {
  protected:
@@ -522,7 +508,7 @@ class SchurStaggeredOperator :  public SchurOperatorBase<Field> {
   virtual  void MpcDag   (const Field &in, Field &out){
     Mpc(in,out);
   }
-  virtual void MpcDagMpc(const Field &in, Field &out,RealD &ni,RealD &no) {
+  virtual void MpcDagMpc(const Field &in, Field &out) {
     assert(0);// Never need with staggered
   }
 };
@@ -600,6 +586,7 @@ class HermOpOperatorFunction : public OperatorFunction<Field> {
 template<typename Field>
 class PlainHermOp : public LinearFunction<Field> {
 public:
+  using LinearFunction<Field>::operator();
   LinearOperatorBase<Field> &_Linop;
       
   PlainHermOp(LinearOperatorBase<Field>& linop) : _Linop(linop) 
@@ -613,6 +600,7 @@ public:
 template<typename Field>
 class FunctionHermOp : public LinearFunction<Field> {
 public:
+  using LinearFunction<Field>::operator(); 
   OperatorFunction<Field>   & _poly;
   LinearOperatorBase<Field> &_Linop;
       

Grid/algorithms/Preconditioner.h

@@ -30,13 +30,19 @@ Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
 
 NAMESPACE_BEGIN(Grid);
 
-template<class Field> class Preconditioner :  public LinearFunction<Field> { 
+template<class Field> using Preconditioner =  LinearFunction<Field> ;
+
+/*
+template<class Field> class Preconditioner :  public LinearFunction<Field> {
+  using LinearFunction<Field>::operator();
   virtual void operator()(const Field &src, Field & psi)=0;
 };
+*/
 
 template<class Field> class TrivialPrecon :  public Preconditioner<Field> { 
 public:
-  void operator()(const Field &src, Field & psi){
+  using Preconditioner<Field>::operator();
+  virtual void operator()(const Field &src, Field & psi){
     psi = src;
   }
   TrivialPrecon(void){};

Grid/algorithms/SparseMatrix.h

@@ -48,6 +48,7 @@ public:
   virtual  void Mdiag    (const Field &in, Field &out)=0;
   virtual  void Mdir     (const Field &in, Field &out,int dir, int disp)=0;
   virtual  void MdirAll  (const Field &in, std::vector<Field> &out)=0;
+  virtual ~SparseMatrixBase() {};
 };
 
 /////////////////////////////////////////////////////////////////////////////////////////////
@@ -72,7 +73,7 @@ public:
   virtual  void MeooeDag    (const Field &in, Field &out)=0;
   virtual  void MooeeDag    (const Field &in, Field &out)=0;
   virtual  void MooeeInvDag (const Field &in, Field &out)=0;
-
+  virtual ~CheckerBoardedSparseMatrixBase() {};
 };
 
 NAMESPACE_END(Grid);

Grid/algorithms/approx/Chebyshev.h

@@ -292,7 +292,6 @@ public:
 template<class Field>
 class ChebyshevLanczos : public Chebyshev<Field> {
 private:
-
   std::vector<RealD> Coeffs;
   int order;
   RealD alpha;

Grid/algorithms/iterative/BiCGSTABMixedPrec.h

@@ -36,7 +36,8 @@ NAMESPACE_BEGIN(Grid);
 template<class FieldD, class FieldF, typename std::enable_if< getPrecision<FieldD>::value == 2, int>::type = 0, typename std::enable_if< getPrecision<FieldF>::value == 1, int>::type = 0> 
 class MixedPrecisionBiCGSTAB : public LinearFunction<FieldD> 
 {
-  public:                                                
+  public:
+    using LinearFunction<FieldD>::operator();
     RealD   Tolerance;
     RealD   InnerTolerance; // Initial tolerance for inner CG. Defaults to Tolerance but can be changed
     Integer MaxInnerIterations;

Grid/algorithms/iterative/ConjugateGradient.h

@@ -102,7 +102,7 @@ public:
     // Check if guess is really REALLY good :)
     if (cp <= rsq) {
       TrueResidual = std::sqrt(a/ssq);
-      std::cout << GridLogMessage << "ConjugateGradient guess is converged already "<<TrueResidual<< " tol "<< Tolerance<< std::endl;
+      std::cout << GridLogMessage << "ConjugateGradient guess is converged already " << std::endl;
       IterationsToComplete = 0;	
       return;
     }

Grid/algorithms/iterative/ConjugateGradientMixedPrec.h

@@ -35,7 +35,8 @@ NAMESPACE_BEGIN(Grid);
     typename std::enable_if< getPrecision<FieldD>::value == 2, int>::type = 0,
     typename std::enable_if< getPrecision<FieldF>::value == 1, int>::type = 0> 
   class MixedPrecisionConjugateGradient : public LinearFunction<FieldD> {
-  public:                                                
+  public:
+    using LinearFunction<FieldD>::operator();
     RealD   Tolerance;
     RealD   InnerTolerance; //Initial tolerance for inner CG. Defaults to Tolerance but can be changed
     Integer MaxInnerIterations;
@@ -48,29 +49,19 @@ NAMESPACE_BEGIN(Grid);
     Integer TotalInnerIterations; //Number of inner CG iterations
     Integer TotalOuterIterations; //Number of restarts
     Integer TotalFinalStepIterations; //Number of CG iterations in final patch-up step
-    RealD TrueResidual;
 
     //Option to speed up *inner single precision* solves using a LinearFunction that produces a guess
     LinearFunction<FieldF> *guesser;
-
-    MixedPrecisionConjugateGradient(RealD Tol,
-				    Integer maxinnerit, 
-				    Integer maxouterit, 
-				    GridBase* _sp_grid, 
-				    LinearOperatorBase<FieldF> &_Linop_f, 
-				    LinearOperatorBase<FieldD> &_Linop_d) :
-      MixedPrecisionConjugateGradient(Tol, Tol, maxinnerit, maxouterit, _sp_grid, _Linop_f, _Linop_d) {};
-
-    MixedPrecisionConjugateGradient(RealD Tol,
-				    RealD InnerTol,
+    
+    MixedPrecisionConjugateGradient(RealD tol, 
 				    Integer maxinnerit, 
 				    Integer maxouterit, 
 				    GridBase* _sp_grid, 
 				    LinearOperatorBase<FieldF> &_Linop_f, 
 				    LinearOperatorBase<FieldD> &_Linop_d) :
       Linop_f(_Linop_f), Linop_d(_Linop_d),
-      Tolerance(Tol), InnerTolerance(InnerTol), MaxInnerIterations(maxinnerit), MaxOuterIterations(maxouterit), SinglePrecGrid(_sp_grid),
-      OuterLoopNormMult(100.), guesser(NULL){ assert(InnerTol < 1.0e-1);};
+      Tolerance(tol), InnerTolerance(tol), MaxInnerIterations(maxinnerit), MaxOuterIterations(maxouterit), SinglePrecGrid(_sp_grid),
+      OuterLoopNormMult(100.), guesser(NULL){ };
 
     void useGuesser(LinearFunction<FieldF> &g){
       guesser = &g;
@@ -89,11 +80,6 @@ NAMESPACE_BEGIN(Grid);
     RealD stop = src_norm * Tolerance*Tolerance;
 
     GridBase* DoublePrecGrid = src_d_in.Grid();
-
-    //Generate precision change workspaces
-    precisionChangeWorkspace wk_dp_from_sp(DoublePrecGrid, SinglePrecGrid);
-    precisionChangeWorkspace wk_sp_from_dp(SinglePrecGrid, DoublePrecGrid);
-
     FieldD tmp_d(DoublePrecGrid);
     tmp_d.Checkerboard() = cb;
     
@@ -134,7 +120,7 @@ NAMESPACE_BEGIN(Grid);
       while(norm * inner_tol * inner_tol < stop) inner_tol *= 2;  // inner_tol = sqrt(stop/norm) ??
 
       PrecChangeTimer.Start();
-      precisionChange(src_f, src_d, wk_sp_from_dp);
+      precisionChange(src_f, src_d);
       PrecChangeTimer.Stop();
       
       sol_f = Zero();
@@ -152,7 +138,7 @@ NAMESPACE_BEGIN(Grid);
       
       //Convert sol back to double and add to double prec solution
       PrecChangeTimer.Start();
-      precisionChange(tmp_d, sol_f, wk_dp_from_sp);
+      precisionChange(tmp_d, sol_f);
       PrecChangeTimer.Stop();
       
       axpy(sol_d, 1.0, tmp_d, sol_d);
@@ -164,7 +150,6 @@ NAMESPACE_BEGIN(Grid);
     ConjugateGradient<FieldD> CG_d(Tolerance, MaxInnerIterations);
     CG_d(Linop_d, src_d_in, sol_d);
     TotalFinalStepIterations = CG_d.IterationsToComplete;
-    TrueResidual = CG_d.TrueResidual;
 
     TotalTimer.Stop();
     std::cout<<GridLogMessage<<"MixedPrecisionConjugateGradient: Inner CG iterations " << TotalInnerIterations << " Restarts " << TotalOuterIterations << " Final CG iterations " << TotalFinalStepIterations << std::endl;

Grid/algorithms/iterative/ConjugateGradientMultiShift.h

@@ -52,7 +52,7 @@ public:
   MultiShiftFunction shifts;
   std::vector<RealD> TrueResidualShift;
 
-  ConjugateGradientMultiShift(Integer maxit, const MultiShiftFunction &_shifts) : 
+  ConjugateGradientMultiShift(Integer maxit,MultiShiftFunction &_shifts) : 
     MaxIterations(maxit),
     shifts(_shifts)
   { 
@@ -182,9 +182,6 @@ public:
     for(int s=0;s<nshift;s++) {
       axpby(psi[s],0.,-bs[s]*alpha[s],src,src);
     }
-
-    std::cout << GridLogIterative << "ConjugateGradientMultiShift: initial rn (|src|^2) =" << rn << " qq (|MdagM src|^2) =" << qq << " d ( dot(src, [MdagM + m_0]src) ) =" << d << " c=" << c << std::endl;
-    
   
   ///////////////////////////////////////
   // Timers

Grid/algorithms/iterative/ConjugateGradientMultiShiftMixedPrec.h

@@ -1,411 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/algorithms/iterative/ConjugateGradientMultiShift.h
-
-    Copyright (C) 2015
-
-Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-Author: Christopher Kelly <ckelly@bnl.gov>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#ifndef GRID_CONJUGATE_GRADIENT_MULTI_SHIFT_MIXEDPREC_H
-#define GRID_CONJUGATE_GRADIENT_MULTI_SHIFT_MIXEDPREC_H
-
-NAMESPACE_BEGIN(Grid);
-
-//CK 2020: A variant of the multi-shift conjugate gradient with the matrix multiplication in single precision. 
-//The residual is stored in single precision, but the search directions and solution are stored in double precision. 
-//Every update_freq iterations the residual is corrected in double precision. 
-    
-//For safety the a final regular CG is applied to clean up if necessary
-
-//Linop to add shift to input linop, used in cleanup CG
-namespace ConjugateGradientMultiShiftMixedPrecSupport{
-template<typename Field>
-class ShiftedLinop: public LinearOperatorBase<Field>{
-public:
-  LinearOperatorBase<Field> &linop_base;
-  RealD shift;
-
-  ShiftedLinop(LinearOperatorBase<Field> &_linop_base, RealD _shift): linop_base(_linop_base), shift(_shift){}
-
-  void OpDiag (const Field &in, Field &out){ assert(0); }
-  void OpDir  (const Field &in, Field &out,int dir,int disp){ assert(0); }
-  void OpDirAll  (const Field &in, std::vector<Field> &out){ assert(0); }
-  
-  void Op     (const Field &in, Field &out){ assert(0); }
-  void AdjOp  (const Field &in, Field &out){ assert(0); }
-
-  void HermOp(const Field &in, Field &out){
-    linop_base.HermOp(in, out);
-    axpy(out, shift, in, out);
-  }    
-
-  void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){
-    HermOp(in,out);
-    ComplexD dot = innerProduct(in,out);
-    n1=real(dot);
-    n2=norm2(out);
-  }
-};
-};
-
-
-template<class FieldD, class FieldF,
-	 typename std::enable_if< getPrecision<FieldD>::value == 2, int>::type = 0,
-	 typename std::enable_if< getPrecision<FieldF>::value == 1, int>::type = 0> 
-class ConjugateGradientMultiShiftMixedPrec : public OperatorMultiFunction<FieldD>,
-					     public OperatorFunction<FieldD>
-{
-public:                                                
-
-  using OperatorFunction<FieldD>::operator();
-
-  RealD   Tolerance;
-  Integer MaxIterations;
-  Integer IterationsToComplete; //Number of iterations the CG took to finish. Filled in upon completion
-  std::vector<int> IterationsToCompleteShift;  // Iterations for this shift
-  int verbose;
-  MultiShiftFunction shifts;
-  std::vector<RealD> TrueResidualShift;
-
-  int ReliableUpdateFreq; //number of iterations between reliable updates
-
-  GridBase* SinglePrecGrid; //Grid for single-precision fields
-  LinearOperatorBase<FieldF> &Linop_f; //single precision
-
-  ConjugateGradientMultiShiftMixedPrec(Integer maxit, const MultiShiftFunction &_shifts,
-				       GridBase* _SinglePrecGrid, LinearOperatorBase<FieldF> &_Linop_f,
-				       int _ReliableUpdateFreq
-				       ) : 
-    MaxIterations(maxit),  shifts(_shifts), SinglePrecGrid(_SinglePrecGrid), Linop_f(_Linop_f), ReliableUpdateFreq(_ReliableUpdateFreq)
-  { 
-    verbose=1;
-    IterationsToCompleteShift.resize(_shifts.order);
-    TrueResidualShift.resize(_shifts.order);
-  }
-
-  void operator() (LinearOperatorBase<FieldD> &Linop, const FieldD &src, FieldD &psi)
-  {
-    GridBase *grid = src.Grid();
-    int nshift = shifts.order;
-    std::vector<FieldD> results(nshift,grid);
-    (*this)(Linop,src,results,psi);
-  }
-  void operator() (LinearOperatorBase<FieldD> &Linop, const FieldD &src, std::vector<FieldD> &results, FieldD &psi)
-  {
-    int nshift = shifts.order;
-
-    (*this)(Linop,src,results);
-  
-    psi = shifts.norm*src;
-    for(int i=0;i<nshift;i++){
-      psi = psi + shifts.residues[i]*results[i];
-    }
-
-    return;
-  }
-
-  void operator() (LinearOperatorBase<FieldD> &Linop_d, const FieldD &src_d, std::vector<FieldD> &psi_d)
-  { 
-    GridBase *DoublePrecGrid = src_d.Grid();
-    precisionChangeWorkspace wk_f_from_d(SinglePrecGrid, DoublePrecGrid);
-    precisionChangeWorkspace wk_d_from_f(DoublePrecGrid, SinglePrecGrid);
-
-    ////////////////////////////////////////////////////////////////////////
-    // Convenience references to the info stored in "MultiShiftFunction"
-    ////////////////////////////////////////////////////////////////////////
-    int nshift = shifts.order;
-
-    std::vector<RealD> &mass(shifts.poles); // Make references to array in "shifts"
-    std::vector<RealD> &mresidual(shifts.tolerances);
-    std::vector<RealD> alpha(nshift,1.0);
-
-    //Double precision search directions
-    FieldD p_d(DoublePrecGrid);
-    std::vector<FieldD> ps_d(nshift, DoublePrecGrid);// Search directions (double precision)
-
-    FieldD tmp_d(DoublePrecGrid);
-    FieldD r_d(DoublePrecGrid);
-    FieldD mmp_d(DoublePrecGrid);
-
-    assert(psi_d.size()==nshift);
-    assert(mass.size()==nshift);
-    assert(mresidual.size()==nshift);
-  
-    // dynamic sized arrays on stack; 2d is a pain with vector
-    RealD  bs[nshift];
-    RealD  rsq[nshift];
-    RealD  z[nshift][2];
-    int     converged[nshift];
-  
-    const int       primary =0;
-  
-    //Primary shift fields CG iteration
-    RealD a,b,c,d;
-    RealD cp,bp,qq; //prev
-  
-    // Matrix mult fields
-    FieldF r_f(SinglePrecGrid);
-    FieldF p_f(SinglePrecGrid);
-    FieldF tmp_f(SinglePrecGrid);
-    FieldF mmp_f(SinglePrecGrid);
-    FieldF src_f(SinglePrecGrid);
-    precisionChange(src_f, src_d, wk_f_from_d);
-
-    // Check lightest mass
-    for(int s=0;s<nshift;s++){
-      assert( mass[s]>= mass[primary] );
-      converged[s]=0;
-    }
-  
-    // Wire guess to zero
-    // Residuals "r" are src
-    // First search direction "p" is also src
-    cp = norm2(src_d);
-
-    // Handle trivial case of zero src.
-    if( cp == 0. ){
-      for(int s=0;s<nshift;s++){
-	psi_d[s] = Zero();
-	IterationsToCompleteShift[s] = 1;
-	TrueResidualShift[s] = 0.;
-      }
-      return;
-    }
-
-    for(int s=0;s<nshift;s++){
-      rsq[s] = cp * mresidual[s] * mresidual[s];
-      std::cout<<GridLogMessage<<"ConjugateGradientMultiShiftMixedPrec: shift "<< s <<" target resid "<<rsq[s]<<std::endl;
-      ps_d[s] = src_d;
-    }
-    // r and p for primary
-    r_f=src_f; //residual maintained in single
-    p_f=src_f;
-    p_d = src_d; //primary copy --- make this a reference to ps_d to save axpys
-  
-    //MdagM+m[0]
-    Linop_f.HermOpAndNorm(p_f,mmp_f,d,qq); // mmp = MdagM p        d=real(dot(p, mmp)),  qq=norm2(mmp)
-    axpy(mmp_f,mass[0],p_f,mmp_f);
-    RealD rn = norm2(p_f);
-    d += rn*mass[0];
-
-    b = -cp /d;
-  
-    // Set up the various shift variables
-    int       iz=0;
-    z[0][1-iz] = 1.0;
-    z[0][iz]   = 1.0;
-    bs[0]      = b;
-    for(int s=1;s<nshift;s++){
-      z[s][1-iz] = 1.0;
-      z[s][iz]   = 1.0/( 1.0 - b*(mass[s]-mass[0]));
-      bs[s]      = b*z[s][iz]; 
-    }
-  
-    // r += b[0] A.p[0]
-    // c= norm(r)
-    c=axpy_norm(r_f,b,mmp_f,r_f);
-  
-    for(int s=0;s<nshift;s++) {
-      axpby(psi_d[s],0.,-bs[s]*alpha[s],src_d,src_d);
-    }
-  
-    ///////////////////////////////////////
-    // Timers
-    ///////////////////////////////////////
-    GridStopWatch AXPYTimer, ShiftTimer, QRTimer, MatrixTimer, SolverTimer, PrecChangeTimer, CleanupTimer;
-
-    SolverTimer.Start();
-  
-    // Iteration loop
-    int k;
-  
-    for (k=1;k<=MaxIterations;k++){    
-      a = c /cp;
-
-      //Update double precision search direction by residual
-      PrecChangeTimer.Start();
-      precisionChange(r_d, r_f, wk_d_from_f);
-      PrecChangeTimer.Stop();
-
-      AXPYTimer.Start();
-      axpy(p_d,a,p_d,r_d); 
-
-      for(int s=0;s<nshift;s++){
-	if ( ! converged[s] ) { 
-	  if (s==0){
-	    axpy(ps_d[s],a,ps_d[s],r_d);
-	  } else{
-	    RealD as =a *z[s][iz]*bs[s] /(z[s][1-iz]*b);
-	    axpby(ps_d[s],z[s][iz],as,r_d,ps_d[s]);
-	  }
-	}
-      }
-      AXPYTimer.Stop();
-
-      PrecChangeTimer.Start();
-      precisionChange(p_f, p_d, wk_f_from_d); //get back single prec search direction for linop
-      PrecChangeTimer.Stop();
-
-      cp=c;
-      MatrixTimer.Start();  
-      Linop_f.HermOp(p_f,mmp_f); 
-      d=real(innerProduct(p_f,mmp_f));    
-      MatrixTimer.Stop();  
-
-      AXPYTimer.Start();
-      axpy(mmp_f,mass[0],p_f,mmp_f);
-      AXPYTimer.Stop();
-      RealD rn = norm2(p_f);
-      d += rn*mass[0];
-    
-      bp=b;
-      b=-cp/d;
-    
-      // Toggle the recurrence history
-      bs[0] = b;
-      iz = 1-iz;
-      ShiftTimer.Start();
-      for(int s=1;s<nshift;s++){
-	if((!converged[s])){
-	  RealD z0 = z[s][1-iz];
-	  RealD z1 = z[s][iz];
-	  z[s][iz] = z0*z1*bp
-	    / (b*a*(z1-z0) + z1*bp*(1- (mass[s]-mass[0])*b)); 
-	  bs[s] = b*z[s][iz]/z0; // NB sign  rel to Mike
-	}
-      }
-      ShiftTimer.Stop();
-
-      //Update double precision solutions
-      AXPYTimer.Start();
-      for(int s=0;s<nshift;s++){
-	int ss = s;
-	if( (!converged[s]) ) { 
-	  axpy(psi_d[ss],-bs[s]*alpha[s],ps_d[s],psi_d[ss]);
-	}
-      }
-
-      //Perform reliable update if necessary; otherwise update residual from single-prec mmp
-      RealD c_f = axpy_norm(r_f,b,mmp_f,r_f);
-      AXPYTimer.Stop();
-
-      c = c_f;
-
-      if(k % ReliableUpdateFreq == 0){
-	//Replace r with true residual
-	MatrixTimer.Start();  
-	Linop_d.HermOp(psi_d[0],mmp_d); 
-	MatrixTimer.Stop();  
-
-	AXPYTimer.Start();
-	axpy(mmp_d,mass[0],psi_d[0],mmp_d);
-
-	RealD c_d = axpy_norm(r_d, -1.0, mmp_d, src_d);
-	AXPYTimer.Stop();
-
-	std::cout<<GridLogMessage<<"ConjugateGradientMultiShiftMixedPrec k="<<k<< ", replaced |r|^2 = "<<c_f <<" with |r|^2 = "<<c_d<<std::endl;
-	
-	PrecChangeTimer.Start();
-	precisionChange(r_f, r_d, wk_f_from_d);
-	PrecChangeTimer.Stop();
-	c = c_d;
-      }
-    
-      // Convergence checks
-      int all_converged = 1;
-      for(int s=0;s<nshift;s++){
-      
-	if ( (!converged[s]) ){
-	  IterationsToCompleteShift[s] = k;
-	
-	  RealD css  = c * z[s][iz]* z[s][iz];
-	
-	  if(css<rsq[s]){
-	    if ( ! converged[s] )
-	      std::cout<<GridLogMessage<<"ConjugateGradientMultiShiftMixedPrec k="<<k<<" Shift "<<s<<" has converged"<<std::endl;
-	    converged[s]=1;
-	  } else {
-	    all_converged=0;
-	  }
-
-	}
-      }
-
-      if ( all_converged ){
-
-	SolverTimer.Stop();
-	std::cout<<GridLogMessage<< "ConjugateGradientMultiShiftMixedPrec: All shifts have converged iteration "<<k<<std::endl;
-	std::cout<<GridLogMessage<< "ConjugateGradientMultiShiftMixedPrec: Checking solutions"<<std::endl;
-      
-	// Check answers 
-	for(int s=0; s < nshift; s++) { 
-	  Linop_d.HermOpAndNorm(psi_d[s],mmp_d,d,qq);
-	  axpy(tmp_d,mass[s],psi_d[s],mmp_d);
-	  axpy(r_d,-alpha[s],src_d,tmp_d);
-	  RealD rn = norm2(r_d);
-	  RealD cn = norm2(src_d);
-	  TrueResidualShift[s] = std::sqrt(rn/cn);
-	  std::cout<<GridLogMessage<<"ConjugateGradientMultiShiftMixedPrec: shift["<<s<<"] true residual "<< TrueResidualShift[s] << " target " << mresidual[s] << std::endl;
-
-	  //If we have not reached the desired tolerance, do a (mixed precision) CG cleanup
-	  if(rn >= rsq[s]){
-	    CleanupTimer.Start();
-	    std::cout<<GridLogMessage<<"ConjugateGradientMultiShiftMixedPrec: performing cleanup step for shift " << s << std::endl;
-
-	    //Setup linear operators for final cleanup
-	    ConjugateGradientMultiShiftMixedPrecSupport::ShiftedLinop<FieldD> Linop_shift_d(Linop_d, mass[s]);
-	    ConjugateGradientMultiShiftMixedPrecSupport::ShiftedLinop<FieldF> Linop_shift_f(Linop_f, mass[s]);
-					       
-	    MixedPrecisionConjugateGradient<FieldD,FieldF> cg(mresidual[s], MaxIterations, MaxIterations, SinglePrecGrid, Linop_shift_f, Linop_shift_d); 
-	    cg(src_d, psi_d[s]);
-	    
-	    TrueResidualShift[s] = cg.TrueResidual;
-	    CleanupTimer.Stop();
-	  }
-	}
-
-	std::cout << GridLogMessage << "ConjugateGradientMultiShiftMixedPrec: Time Breakdown for body"<<std::endl;
-	std::cout << GridLogMessage << "\tSolver    " << SolverTimer.Elapsed()     <<std::endl;
-	std::cout << GridLogMessage << "\t\tAXPY    " << AXPYTimer.Elapsed()     <<std::endl;
-	std::cout << GridLogMessage << "\t\tMatrix    " << MatrixTimer.Elapsed()     <<std::endl;
-	std::cout << GridLogMessage << "\t\tShift    " << ShiftTimer.Elapsed()     <<std::endl;
-	std::cout << GridLogMessage << "\t\tPrecision Change " << PrecChangeTimer.Elapsed()     <<std::endl;
-	std::cout << GridLogMessage << "\tFinal Cleanup " << CleanupTimer.Elapsed()     <<std::endl;
-	std::cout << GridLogMessage << "\tSolver+Cleanup " << SolverTimer.Elapsed() + CleanupTimer.Elapsed() << std::endl;
-
-	IterationsToComplete = k;	
-
-	return;
-      }
-
-   
-    }
-    // ugly hack
-    std::cout<<GridLogMessage<<"CG multi shift did not converge"<<std::endl;
-    //  assert(0);
-  }
-
-};
-NAMESPACE_END(Grid);
-#endif

Grid/algorithms/iterative/Deflation.h

@@ -33,16 +33,19 @@ namespace Grid {
 template<class Field>
 class ZeroGuesser: public LinearFunction<Field> {
 public:
+  using LinearFunction<Field>::operator();
     virtual void operator()(const Field &src, Field &guess) { guess = Zero(); };
 };
 template<class Field>
 class DoNothingGuesser: public LinearFunction<Field> {
 public:
+  using LinearFunction<Field>::operator();
   virtual void operator()(const Field &src, Field &guess) {  };
 };
 template<class Field>
 class SourceGuesser: public LinearFunction<Field> {
 public:
+  using LinearFunction<Field>::operator();
   virtual void operator()(const Field &src, Field &guess) { guess = src; };
 };
 
@@ -57,6 +60,7 @@ private:
   const unsigned int       N;
 
 public:
+  using LinearFunction<Field>::operator();
 
   DeflatedGuesser(const std::vector<Field> & _evec,const std::vector<RealD> & _eval)
   : DeflatedGuesser(_evec, _eval, _evec.size())
@@ -87,6 +91,7 @@ private:
   const std::vector<RealD>       &eval_coarse;
 public:
   
+  using LinearFunction<FineField>::operator();
   LocalCoherenceDeflatedGuesser(const std::vector<FineField>   &_subspace,
 				const std::vector<CoarseField> &_evec_coarse,
 				const std::vector<RealD>       &_eval_coarse)

Grid/algorithms/iterative/LocalCoherenceLanczos.h

@@ -67,6 +67,7 @@ public:
 template<class Fobj,class CComplex,int nbasis>
 class ProjectedHermOp : public LinearFunction<Lattice<iVector<CComplex,nbasis > > > {
 public:
+  using LinearFunction<Lattice<iVector<CComplex,nbasis > > >::operator();
   typedef iVector<CComplex,nbasis >           CoarseSiteVector;
   typedef Lattice<CoarseSiteVector>           CoarseField;
   typedef Lattice<CComplex>   CoarseScalar; // used for inner products on fine field
@@ -97,6 +98,7 @@ public:
 template<class Fobj,class CComplex,int nbasis>
 class ProjectedFunctionHermOp : public LinearFunction<Lattice<iVector<CComplex,nbasis > > > {
 public:
+  using LinearFunction<Lattice<iVector<CComplex,nbasis > > >::operator();
   typedef iVector<CComplex,nbasis >           CoarseSiteVector;
   typedef Lattice<CoarseSiteVector>           CoarseField;
   typedef Lattice<CComplex>   CoarseScalar; // used for inner products on fine field

Grid/algorithms/iterative/PrecGeneralisedConjugateResidual.h

@@ -43,7 +43,7 @@ NAMESPACE_BEGIN(Grid);
 template<class Field>
 class PrecGeneralisedConjugateResidual : public LinearFunction<Field> {
 public:                                                
-
+  using LinearFunction<Field>::operator();
   RealD   Tolerance;
   Integer MaxIterations;
   int verbose;

Grid/algorithms/iterative/PrecGeneralisedConjugateResidualNonHermitian.h

@@ -43,7 +43,7 @@ NAMESPACE_BEGIN(Grid);
 template<class Field>
 class PrecGeneralisedConjugateResidualNonHermitian : public LinearFunction<Field> {
 public:                                                
-
+  using LinearFunction<Field>::operator();
   RealD   Tolerance;
   Integer MaxIterations;
   int verbose;
@@ -119,7 +119,8 @@ public:
   RealD GCRnStep(const Field &src, Field &psi,RealD rsq){
 
     RealD cp;
-    ComplexD a, b, zAz;
+    ComplexD a, b;
+    //    ComplexD zAz;
     RealD zAAz;
     ComplexD rq;
 
@@ -146,7 +147,7 @@ public:
     //////////////////////////////////
     MatTimer.Start();
     Linop.Op(psi,Az);
-    zAz = innerProduct(Az,psi);
+    //    zAz = innerProduct(Az,psi);
     zAAz= norm2(Az);
     MatTimer.Stop();
     
@@ -170,7 +171,7 @@ public:
 
     LinalgTimer.Start();
 
-    zAz = innerProduct(Az,psi);
+    //    zAz = innerProduct(Az,psi);
     zAAz= norm2(Az);
 
     //p[0],q[0],qq[0] 
@@ -212,7 +213,7 @@ public:
       MatTimer.Start();
       Linop.Op(z,Az);
       MatTimer.Stop();
-      zAz = innerProduct(Az,psi);
+      //      zAz = innerProduct(Az,psi);
       zAAz= norm2(Az);
 
       LinalgTimer.Start();

Grid/algorithms/iterative/SchurRedBlack.h

@@ -40,7 +40,7 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
    *        (-MoeMee^{-1}   1 )   
    * L^{dag} = ( 1       Mee^{-dag} Moe^{dag} )
    *           ( 0       1                    )
-   * L^{-dag}= ( 1      -Mee^{-dag} Moe^{dag} )
+   * L^{-d}  = ( 1      -Mee^{-dag} Moe^{dag} )
    *           ( 0       1                    )
    *
    * U^-1 = (1   -Mee^{-1} Meo)
@@ -82,8 +82,7 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
    * c) M_oo^-dag Doo^{dag} Doo Moo^-1 phi_0 = M_oo^-dag (D_oo)^dag L^{-1}  eta_o
    *                              eta_o'     = M_oo^-dag (D_oo)^dag (eta_o - Moe Mee^{-1} eta_e)
    *                              psi_o = M_oo^-1 phi_o
-   *
-   *
+   * TODO: Deflation 
    */
 namespace Grid {
 
@@ -98,7 +97,6 @@ namespace Grid {
   protected:
     typedef CheckerBoardedSparseMatrixBase<Field> Matrix;
     OperatorFunction<Field> & _HermitianRBSolver;
-    
     int CBfactorise;
     bool subGuess;
     bool useSolnAsInitGuess; // if true user-supplied solution vector is used as initial guess for solver
@@ -221,20 +219,13 @@ namespace Grid {
 	/////////////////////////////////////////////////
 	// Check unprec residual if possible
 	/////////////////////////////////////////////////
-	if ( ! subGuess ) {	  
-
-	  if ( this->adjoint() ) _Matrix.Mdag(out[b],resid); 
-	  else                   _Matrix.M(out[b],resid); 
-
+	if ( ! subGuess ) {
+	  _Matrix.M(out[b],resid); 
 	  resid = resid-in[b];
 	  RealD ns = norm2(in[b]);
 	  RealD nr = norm2(resid);
 	
-	  std::cout<<GridLogMessage<< "SchurRedBlackBase adjoint "<< this->adjoint() << std::endl;
-	  if ( this->adjoint() ) 
-	    std::cout<<GridLogMessage<< "SchurRedBlackBase adjoint solver true unprec resid["<<b<<"] "<<std::sqrt(nr/ns) << std::endl;
-	  else                   
-	    std::cout<<GridLogMessage<< "SchurRedBlackBase solver true unprec resid["<<b<<"] "<<std::sqrt(nr/ns) << std::endl;
+	  std::cout<<GridLogMessage<< "SchurRedBlackBase solver true unprec resid["<<b<<"] "<<std::sqrt(nr/ns) << std::endl;
 	} else {
 	  std::cout<<GridLogMessage<< "SchurRedBlackBase Guess subtracted after solve["<<b<<"] " << std::endl;
 	}
@@ -288,21 +279,12 @@ namespace Grid {
 
       // Verify the unprec residual
       if ( ! subGuess ) {
-
-	std::cout<<GridLogMessage<< "SchurRedBlackBase adjoint "<< this->adjoint() << std::endl;
-	
-	if ( this->adjoint() ) _Matrix.Mdag(out,resid); 
-	else                   _Matrix.M(out,resid); 
-
+        _Matrix.M(out,resid); 
         resid = resid-in;
         RealD ns = norm2(in);
         RealD nr = norm2(resid);
 
-	  if ( this->adjoint() ) 
-	    std::cout<<GridLogMessage<< "SchurRedBlackBase adjoint solver true unprec resid "<<std::sqrt(nr/ns) << std::endl;
-	  else                   
-	    std::cout<<GridLogMessage<< "SchurRedBlackBase solver true unprec resid "<<std::sqrt(nr/ns) << std::endl;
-
+        std::cout<<GridLogMessage << "SchurRedBlackBase solver true unprec resid "<< std::sqrt(nr/ns) << std::endl;
       } else {
         std::cout << GridLogMessage << "SchurRedBlackBase Guess subtracted after solve." << std::endl;
       }
@@ -311,7 +293,6 @@ namespace Grid {
     /////////////////////////////////////////////////////////////
     // Override in derived. 
     /////////////////////////////////////////////////////////////
-    virtual bool adjoint(void) { return false; }
     virtual void RedBlackSource  (Matrix & _Matrix,const Field &src, Field &src_e,Field &src_o)                =0;
     virtual void RedBlackSolution(Matrix & _Matrix,const Field &sol_o, const Field &src_e,Field &sol)          =0;
     virtual void RedBlackSolve   (Matrix & _Matrix,const Field &src_o, Field &sol_o)                           =0;
@@ -665,127 +646,6 @@ namespace Grid {
         this->_HermitianRBSolver(_OpEO, src_o, sol_o); 
       }
   };
-
-  /*
-   * Red black Schur decomposition
-   *
-   *  M = (Mee Meo) =  (1             0 )   (Mee   0               )  (1 Mee^{-1} Meo)
-   *      (Moe Moo)    (Moe Mee^-1    1 )   (0   Moo-Moe Mee^-1 Meo)  (0   1         )
-   *                =         L                     D                     U
-   *
-   * L^-1 = (1              0 )
-   *        (-MoeMee^{-1}   1 )   
-   * L^{dag} = ( 1       Mee^{-dag} Moe^{dag} )
-   *           ( 0       1                    )
-   *
-   * U^-1 = (1   -Mee^{-1} Meo)
-   *        (0    1           )
-   * U^{dag} = ( 1                 0)
-   *           (Meo^dag Mee^{-dag} 1)
-   * U^{-dag} = (  1                 0)
-   *            (-Meo^dag Mee^{-dag} 1)
-   *
-   *
-   ***********************
-   *     M^dag psi = eta
-   ***********************
-   *
-   * Really for Mobius: (Wilson - easier to just use gamma 5 hermiticity)
-   *
-   *    Mdag psi     =         Udag  Ddag  Ldag psi = eta
-   *
-   * U^{-dag} = (  1                 0)
-   *            (-Meo^dag Mee^{-dag} 1)
-   *
-   *
-   * i)                D^dag phi =  (U^{-dag}  eta)
-   *                        eta'_e = eta_e
-   *                        eta'_o = (eta_o - Meo^dag Mee^{-dag} eta_e)
-   * 
-   *      phi_o = D_oo^-dag eta'_o = D_oo^-dag (eta_o - Meo^dag Mee^{-dag} eta_e)
-   *
-   *      phi_e = D_ee^-dag eta'_e = D_ee^-dag eta_e
-   * 
-   * Solve: 
-   *
-   *      D_oo D_oo^dag phi_o = D_oo (eta_o - Meo^dag Mee^{-dag} eta_e)
-   *
-   * ii) 
-   *      phi = L^dag psi => psi = L^-dag phi. 
-   *
-   * L^{-dag} = ( 1      -Mee^{-dag} Moe^{dag} )
-   *            ( 0       1                    )
-   *
-   *   => sol_e = M_ee^-dag * ( src_e - Moe^dag phi_o )...
-   *   => sol_o = phi_o
-   */
-  ///////////////////////////////////////////////////////////////////////////////////////////////////////
-  // Site diagonal has Mooee on it, but solve the Adjoint system
-  ///////////////////////////////////////////////////////////////////////////////////////////////////////
-  template<class Field> class SchurRedBlackDiagMooeeDagSolve : public SchurRedBlackBase<Field> {
-  public:
-    typedef CheckerBoardedSparseMatrixBase<Field> Matrix;
-
-    virtual bool adjoint(void) { return true; }
-    SchurRedBlackDiagMooeeDagSolve(OperatorFunction<Field> &HermitianRBSolver,
-				   const bool initSubGuess = false,
-				   const bool _solnAsInitGuess = false)  
-      : SchurRedBlackBase<Field> (HermitianRBSolver,initSubGuess,_solnAsInitGuess) {};
-
-    //////////////////////////////////////////////////////
-    // Override RedBlack specialisation
-    //////////////////////////////////////////////////////
-    virtual void RedBlackSource(Matrix & _Matrix,const Field &src, Field &src_e,Field &src_o)
-    {
-      GridBase *grid = _Matrix.RedBlackGrid();
-      GridBase *fgrid= _Matrix.Grid();
-
-      Field   tmp(grid);
-      Field  Mtmp(grid);
-
-      pickCheckerboard(Even,src_e,src);
-      pickCheckerboard(Odd ,src_o,src);
-      /////////////////////////////////////////////////////
-      // src_o = (source_o - Moe^dag MeeInvDag source_e)
-      /////////////////////////////////////////////////////
-      _Matrix.MooeeInvDag(src_e,tmp);  assert(  tmp.Checkerboard() ==Even);
-      _Matrix.MeooeDag   (tmp,Mtmp);   assert( Mtmp.Checkerboard() ==Odd);     
-      tmp=src_o-Mtmp;                  assert(  tmp.Checkerboard() ==Odd);     
-
-      // get the right Mpc
-      SchurDiagMooeeOperator<Matrix,Field> _HermOpEO(_Matrix);
-      _HermOpEO.Mpc(tmp,src_o);     assert(src_o.Checkerboard() ==Odd);
-    }
-    virtual void RedBlackSolve   (Matrix & _Matrix,const Field &src_o, Field &sol_o)
-    {
-      SchurDiagMooeeDagOperator<Matrix,Field> _HermOpEO(_Matrix);
-      this->_HermitianRBSolver(_HermOpEO,src_o,sol_o); 
-    };
-    virtual void RedBlackSolve   (Matrix & _Matrix,const std::vector<Field> &src_o,  std::vector<Field> &sol_o)
-    {
-      SchurDiagMooeeDagOperator<Matrix,Field> _HermOpEO(_Matrix);
-      this->_HermitianRBSolver(_HermOpEO,src_o,sol_o);
-    }
-    virtual void RedBlackSolution(Matrix & _Matrix,const Field &sol_o, const Field &src_e,Field &sol)
-    {
-      GridBase *grid = _Matrix.RedBlackGrid();
-      GridBase *fgrid= _Matrix.Grid();
-
-      Field  sol_e(grid);
-      Field  tmp(grid);
-      ///////////////////////////////////////////////////
-      // sol_e = M_ee^-dag * ( src_e - Moe^dag phi_o )...
-      // sol_o = phi_o
-      ///////////////////////////////////////////////////
-      _Matrix.MeooeDag(sol_o,tmp);      assert(tmp.Checkerboard()==Even);
-      tmp = src_e-tmp;                  assert(tmp.Checkerboard()==Even);
-      _Matrix.MooeeInvDag(tmp,sol_e);   assert(sol_e.Checkerboard()==Even);
-      
-      setCheckerboard(sol,sol_e); assert(  sol_e.Checkerboard() ==Even);
-      setCheckerboard(sol,sol_o); assert(  sol_o.Checkerboard() ==Odd );
-    }
-  };
-
 }
 
 #endif

Grid/allocator/MemoryManager.cc

@@ -159,7 +159,6 @@ void MemoryManager::Init(void)
 
   char * str;
   int Nc;
-  int NcS;
   
   str= getenv("GRID_ALLOC_NCACHE_LARGE");
   if ( str ) {

Grid/allocator/MemoryManager.h

@@ -113,6 +113,11 @@ private:
   static uint64_t     DeviceToHostBytes;
   static uint64_t     HostToDeviceXfer;
   static uint64_t     DeviceToHostXfer;
+  
+  static uint64_t     DeviceAccesses;
+  static uint64_t     HostAccesses;
+  static uint64_t     DeviceAccessBytes;
+  static uint64_t     HostAccessBytes;
  
  private:
 #ifndef GRID_UVM
@@ -152,6 +157,7 @@ private:
 
   //  static void  LRUupdate(AcceleratorViewEntry &AccCache);
   static void  LRUinsert(AcceleratorViewEntry &AccCache);
+  static void  LRUinsertback(AcceleratorViewEntry &AccCache);
   static void  LRUremove(AcceleratorViewEntry &AccCache);
   
   // manage entries in the table
@@ -170,6 +176,7 @@ private:
 
  public:
   static void Print(void);
+  static void PrintState( void* CpuPtr);
   static int   isOpen   (void* CpuPtr);
   static void  ViewClose(void* CpuPtr,ViewMode mode);
   static void *ViewOpen (void* CpuPtr,size_t bytes,ViewMode mode,ViewAdvise hint);

Grid/allocator/MemoryManagerCache.cc

@@ -23,6 +23,11 @@ uint64_t  MemoryManager::HostToDeviceBytes;
 uint64_t  MemoryManager::DeviceToHostBytes;
 uint64_t  MemoryManager::HostToDeviceXfer;
 uint64_t  MemoryManager::DeviceToHostXfer;
+uint64_t  MemoryManager::DeviceAccesses;
+uint64_t  MemoryManager::HostAccesses;
+uint64_t  MemoryManager::DeviceAccessBytes;
+uint64_t  MemoryManager::HostAccessBytes;
+ 
 
 ////////////////////////////////////
 // Priority ordering for unlocked entries
@@ -86,6 +91,14 @@ void  MemoryManager::LRUinsert(AcceleratorViewEntry &AccCache)
   AccCache.LRU_valid = 1;
   DeviceLRUBytes+=AccCache.bytes;
 }
+void  MemoryManager::LRUinsertback(AcceleratorViewEntry &AccCache)
+{
+  assert(AccCache.LRU_valid==0);
+  LRU.push_back(AccCache.CpuPtr);
+  AccCache.LRU_entry = --LRU.end();
+  AccCache.LRU_valid = 1;
+  DeviceLRUBytes+=AccCache.bytes;
+}
 void  MemoryManager::LRUremove(AcceleratorViewEntry &AccCache)
 {
   assert(AccCache.LRU_valid==1);
@@ -129,6 +142,7 @@ void MemoryManager::Evict(AcceleratorViewEntry &AccCache)
   dprintf("MemoryManager: Evict(%llx) %llx\n",(uint64_t)AccCache.CpuPtr,(uint64_t)AccCache.AccPtr); 
   assert(AccCache.accLock==0);
   assert(AccCache.cpuLock==0);
+  
   if(AccCache.state==AccDirty) {
     Flush(AccCache);
   }
@@ -231,6 +245,9 @@ uint64_t MemoryManager::AcceleratorViewOpen(uint64_t CpuPtr,size_t bytes,ViewMod
     EntryCreate(CpuPtr,bytes,mode,hint);
   }
 
+  DeviceAccesses++;
+  DeviceAccessBytes+=bytes;
+
   auto AccCacheIterator = EntryLookup(CpuPtr);
   auto & AccCache = AccCacheIterator->second;
   if (!AccCache.AccPtr) {
@@ -349,6 +366,10 @@ void MemoryManager::CpuViewClose(uint64_t CpuPtr)
   assert(AccCache.accLock==0);
 
   AccCache.cpuLock--;
+
+  if(AccCache.cpuLock==0) {
+    LRUinsertback(AccCache);
+  }
 }
 /*
  *  Action  State   StateNext         Flush    Clone
@@ -371,6 +392,9 @@ uint64_t MemoryManager::CpuViewOpen(uint64_t CpuPtr,size_t bytes,ViewMode mode,V
     EntryCreate(CpuPtr,bytes,mode,transient);
   }
 
+  HostAccesses++;
+  HostAccessBytes+=bytes;
+  
   auto AccCacheIterator = EntryLookup(CpuPtr);
   auto & AccCache = AccCacheIterator->second;
 
@@ -416,6 +440,12 @@ uint64_t MemoryManager::CpuViewOpen(uint64_t CpuPtr,size_t bytes,ViewMode mode,V
 
   AccCache.transient= transient? EvictNext : 0;
 
+  // If view is opened on host remove from LRU
+  // Host close says evict next from device
+  if(AccCache.LRU_valid==1){
+    LRUremove(AccCache);
+  }
+  
   return AccCache.CpuPtr;
 }
 void  MemoryManager::NotifyDeletion(void *_ptr)
@@ -474,6 +504,32 @@ int   MemoryManager::isOpen   (void* _CpuPtr)
   }
 }
 
+void MemoryManager::PrintState(void* _CpuPtr)
+{
+  uint64_t CpuPtr = (uint64_t)_CpuPtr;
+
+  if ( EntryPresent(CpuPtr) ){
+    auto AccCacheIterator = EntryLookup(CpuPtr);
+    auto & AccCache = AccCacheIterator->second;
+    std::string str;
+    if ( AccCache.state==Empty    ) str = std::string("Empty");
+    if ( AccCache.state==CpuDirty ) str = std::string("CpuDirty");
+    if ( AccCache.state==AccDirty ) str = std::string("AccDirty");
+    if ( AccCache.state==Consistent)str = std::string("Consistent");
+    if ( AccCache.state==EvictNext) str = std::string("EvictNext");
+
+    std::cout << GridLogMessage << "CpuAddr\t\tAccAddr\t\tState\t\tcpuLock\taccLock\tLRU_valid "<<std::endl;
+    std::cout << GridLogMessage << "0x"<<std::hex<<AccCache.CpuPtr<<std::dec
+    << "\t0x"<<std::hex<<AccCache.AccPtr<<std::dec<<"\t" <<str
+    << "\t" << AccCache.cpuLock
+    << "\t" << AccCache.accLock
+    << "\t" << AccCache.LRU_valid<<std::endl;
+
+  } else {
+    std::cout << GridLogMessage << "No Entry in AccCache table." << std::endl; 
+  }
+}
+
 NAMESPACE_END(Grid);
 
 #endif

Grid/allocator/MemoryManagerShared.cc

@@ -12,10 +12,18 @@ uint64_t  MemoryManager::HostToDeviceBytes;
 uint64_t  MemoryManager::DeviceToHostBytes;
 uint64_t  MemoryManager::HostToDeviceXfer;
 uint64_t  MemoryManager::DeviceToHostXfer;
+uint64_t  MemoryManager::DeviceAccesses;
+uint64_t  MemoryManager::HostAccesses;
+uint64_t  MemoryManager::DeviceAccessBytes;
+uint64_t  MemoryManager::HostAccessBytes;
 
 void  MemoryManager::ViewClose(void* AccPtr,ViewMode mode){};
 void *MemoryManager::ViewOpen(void* CpuPtr,size_t bytes,ViewMode mode,ViewAdvise hint){ return CpuPtr; };
 int   MemoryManager::isOpen   (void* CpuPtr) { return 0;}
+void  MemoryManager::PrintState(void* CpuPtr)
+{
+std::cout << GridLogMessage << "Host<->Device memory movement not currently managed by Grid." << std::endl;
+};
 void  MemoryManager::Print(void){};
 void  MemoryManager::NotifyDeletion(void *ptr){};
 

Grid/communicator/Communicator_mpi3.cc

@@ -388,8 +388,8 @@ double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsReques
     // TODO : make a OMP loop on CPU, call threaded bcopy
     void *shm = (void *) this->ShmBufferTranslate(dest,recv);
     assert(shm!=NULL);
+    //    std::cout <<"acceleratorCopyDeviceToDeviceAsynch"<< std::endl;
     acceleratorCopyDeviceToDeviceAsynch(xmit,shm,bytes);
-    acceleratorCopySynchronise(); // MPI prob slower
   }
 
   if ( CommunicatorPolicy == CommunicatorPolicySequential ) {
@@ -400,6 +400,9 @@ double CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsReques
 }
 void CartesianCommunicator::StencilSendToRecvFromComplete(std::vector<CommsRequest_t> &list,int dir)
 {
+  //   std::cout << "Copy Synchronised\n"<<std::endl;
+  acceleratorCopySynchronise();
+
   int nreq=list.size();
 
   if (nreq==0) return;

Grid/lattice/Lattice.h

@@ -46,4 +46,3 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
 #include <Grid/lattice/Lattice_unary.h>
 #include <Grid/lattice/Lattice_transfer.h>
 #include <Grid/lattice/Lattice_basis.h>
-#include <Grid/lattice/Lattice_crc.h>

Grid/lattice/Lattice_base.h

@@ -88,6 +88,13 @@ public:
     LatticeView<vobj> accessor(*( (LatticeAccelerator<vobj> *) this),mode);
     accessor.ViewClose();
   }
+
+  // Helper function to print the state of this object in the AccCache
+  void PrintCacheState(void)
+  {
+    MemoryManager::PrintState(this->_odata);
+  }
+
   /////////////////////////////////////////////////////////////////////////////////
   // Return a view object that may be dereferenced in site loops.
   // The view is trivially copy constructible and may be copied to an accelerator device

Grid/lattice/Lattice_crc.h

@@ -1,55 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/lattice/Lattice_crc.h
-
-    Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-template<class vobj> void DumpSliceNorm(std::string s,Lattice<vobj> &f,int mu=-1)
-{
-  auto ff = localNorm2(f);
-  if ( mu==-1 ) mu = f.Grid()->Nd()-1;
-  typedef typename vobj::tensor_reduced normtype;
-  typedef typename normtype::scalar_object scalar;
-  std::vector<scalar> sff;
-  sliceSum(ff,sff,mu);
-  for(int t=0;t<sff.size();t++){
-    std::cout << s<<" "<<t<<" "<<sff[t]<<std::endl;
-  }
-}
-
-template<class vobj> uint32_t crc(Lattice<vobj> & buf)
-{
-  autoView( buf_v , buf, CpuRead);
-  return ::crc32(0L,(unsigned char *)&buf_v[0],(size_t)sizeof(vobj)*buf.oSites());
-}
-
-#define CRC(U) std::cout << "FingerPrint "<<__FILE__ <<" "<< __LINE__ <<" "<< #U <<" "<<crc(U)<<std::endl;
-
-NAMESPACE_END(Grid);
-
-

Grid/lattice/Lattice_reduction_gpu.h

@@ -42,7 +42,6 @@ void getNumBlocksAndThreads(const Iterator n, const size_t sizeofsobj, Iterator
   std::cout << GridLogDebug << "\twarpSize            = " << warpSize << std::endl;
   std::cout << GridLogDebug << "\tsharedMemPerBlock   = " << sharedMemPerBlock << std::endl;
   std::cout << GridLogDebug << "\tmaxThreadsPerBlock  = " << maxThreadsPerBlock << std::endl;
-  std::cout << GridLogDebug << "\tmaxThreadsPerBlock  = " << warpSize << std::endl;
   std::cout << GridLogDebug << "\tmultiProcessorCount = " << multiProcessorCount << std::endl;
   
   if (warpSize != WARP_SIZE) {
@@ -52,6 +51,10 @@ void getNumBlocksAndThreads(const Iterator n, const size_t sizeofsobj, Iterator
   
   // let the number of threads in a block be a multiple of 2, starting from warpSize
   threads = warpSize;
+  if ( threads*sizeofsobj > sharedMemPerBlock ) {
+    std::cout << GridLogError << "The object is too large for the shared memory." << std::endl;
+    exit(EXIT_FAILURE);
+  }
   while( 2*threads*sizeofsobj < sharedMemPerBlock && 2*threads <= maxThreadsPerBlock ) threads *= 2;
   // keep all the streaming multiprocessors busy
   blocks = nextPow2(multiProcessorCount);

Grid/lattice/Lattice_rng.h

@@ -32,9 +32,8 @@
 #include <random>
 
 #ifdef RNG_SITMO
-#include <Grid/random/sitmo_prng_engine.hpp>
+#include <Grid/sitmo_rng/sitmo_prng_engine.hpp>
 #endif 
-#include <Grid/random/gaussian.h>
 
 #if defined(RNG_SITMO)
 #define RNG_FAST_DISCARD
@@ -143,7 +142,7 @@ public:
 
   std::vector<RngEngine>                             _generators;
   std::vector<std::uniform_real_distribution<RealD> > _uniform;
-  std::vector<Grid::gaussian_distribution<RealD> >    _gaussian;
+  std::vector<std::normal_distribution<RealD> >       _gaussian;
   std::vector<std::discrete_distribution<int32_t> >   _bernoulli;
   std::vector<std::uniform_int_distribution<uint32_t> > _uid;
 
@@ -244,7 +243,7 @@ public:
   GridSerialRNG() : GridRNGbase() {
     _generators.resize(1);
     _uniform.resize(1,std::uniform_real_distribution<RealD>{0,1});
-    _gaussian.resize(1,gaussian_distribution<RealD>(0.0,1.0) );
+    _gaussian.resize(1,std::normal_distribution<RealD>(0.0,1.0) );
     _bernoulli.resize(1,std::discrete_distribution<int32_t>{1,1});
     _uid.resize(1,std::uniform_int_distribution<uint32_t>() );
   }
@@ -358,7 +357,7 @@ public:
 
     _generators.resize(_vol);
     _uniform.resize(_vol,std::uniform_real_distribution<RealD>{0,1});
-    _gaussian.resize(_vol,gaussian_distribution<RealD>(0.0,1.0) );
+    _gaussian.resize(_vol,std::normal_distribution<RealD>(0.0,1.0) );
     _bernoulli.resize(_vol,std::discrete_distribution<int32_t>{1,1});
     _uid.resize(_vol,std::uniform_int_distribution<uint32_t>() );
   }

Grid/lattice/Lattice_transfer.h

@@ -85,6 +85,76 @@ template<class vobj> inline void setCheckerboard(Lattice<vobj> &full,const Latti
   });
 }
 
+template<class vobj> inline void acceleratorPickCheckerboard(int cb,Lattice<vobj> &half,const Lattice<vobj> &full, int checker_dim_half=0)
+{
+  half.Checkerboard() = cb;
+  autoView(half_v, half, AcceleratorWrite);
+  autoView(full_v, full, AcceleratorRead);
+  Coordinate rdim_full             = full.Grid()->_rdimensions;
+  Coordinate rdim_half             = half.Grid()->_rdimensions;
+  unsigned long ndim_half          = half.Grid()->_ndimension;
+  Coordinate checker_dim_mask_half = half.Grid()->_checker_dim_mask;
+  Coordinate ostride_half          = half.Grid()->_ostride;
+  accelerator_for(ss, full.Grid()->oSites(),full.Grid()->Nsimd(),{
+    
+    Coordinate coor;
+    int cbos;
+    int linear=0;
+
+    Lexicographic::CoorFromIndex(coor,ss,rdim_full);
+    assert(coor.size()==ndim_half);
+
+    for(int d=0;d<ndim_half;d++){ 
+      if(checker_dim_mask_half[d]) linear += coor[d];
+    }
+    cbos = (linear&0x1);
+
+    if (cbos==cb) {
+      int ssh=0;
+      for(int d=0;d<ndim_half;d++) {
+        if (d == checker_dim_half) ssh += ostride_half[d] * ((coor[d] / 2) % rdim_half[d]);
+        else ssh += ostride_half[d] * (coor[d] % rdim_half[d]);
+      }
+      coalescedWrite(half_v[ssh],full_v(ss));
+    }
+  });
+}
+template<class vobj> inline void acceleratorSetCheckerboard(Lattice<vobj> &full,const Lattice<vobj> &half, int checker_dim_half=0)
+{
+  int cb = half.Checkerboard();
+  autoView(half_v , half, AcceleratorRead);
+  autoView(full_v , full, AcceleratorWrite);
+  Coordinate rdim_full             = full.Grid()->_rdimensions;
+  Coordinate rdim_half             = half.Grid()->_rdimensions;
+  unsigned long ndim_half          = half.Grid()->_ndimension;
+  Coordinate checker_dim_mask_half = half.Grid()->_checker_dim_mask;
+  Coordinate ostride_half          = half.Grid()->_ostride;
+  accelerator_for(ss,full.Grid()->oSites(),full.Grid()->Nsimd(),{
+
+    Coordinate coor;
+    int cbos;
+    int linear=0;
+  
+    Lexicographic::CoorFromIndex(coor,ss,rdim_full);
+    assert(coor.size()==ndim_half);
+
+    for(int d=0;d<ndim_half;d++){ 
+      if(checker_dim_mask_half[d]) linear += coor[d];
+    }
+    cbos = (linear&0x1);
+
+    if (cbos==cb) {
+      int ssh=0;
+      for(int d=0;d<ndim_half;d++){
+        if (d == checker_dim_half) ssh += ostride_half[d] * ((coor[d] / 2) % rdim_half[d]);
+        else ssh += ostride_half[d] * (coor[d] % rdim_half[d]);
+      }
+      coalescedWrite(full_v[ss],half_v(ssh));
+    }
+
+  });
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////////
 // Flexible Type Conversion for internal promotion to double as well as graceful
 // treatment of scalar-compatible types
@@ -785,7 +855,7 @@ void ExtractSliceLocal(Lattice<vobj> &lowDim,const Lattice<vobj> & higherDim,int
 
 
 template<class vobj>
-void Replicate(const Lattice<vobj> &coarse,Lattice<vobj> & fine)
+void Replicate(Lattice<vobj> &coarse,Lattice<vobj> & fine)
 {
   typedef typename vobj::scalar_object sobj;
 
@@ -1010,95 +1080,53 @@ vectorizeFromRevLexOrdArray( std::vector<sobj> &in, Lattice<vobj> &out)
   });
 }
 
-//The workspace for a precision change operation allowing for the reuse of the mapping to save time on subsequent calls
-class precisionChangeWorkspace{
-  std::pair<Integer,Integer>* fmap_device; //device pointer
-public:
-  precisionChangeWorkspace(GridBase *out_grid, GridBase *in_grid){
-    //Build a map between the sites and lanes of the output field and the input field as we cannot use the Grids on the device
-    assert(out_grid->Nd() == in_grid->Nd());
-    for(int d=0;d<out_grid->Nd();d++){
-      assert(out_grid->FullDimensions()[d] == in_grid->FullDimensions()[d]);
-    }
-    int Nsimd_out = out_grid->Nsimd();
-
-    std::vector<Coordinate> out_icorrs(out_grid->Nsimd()); //reuse these
-    for(int lane=0; lane < out_grid->Nsimd(); lane++)
-      out_grid->iCoorFromIindex(out_icorrs[lane], lane);
-  
-    std::vector<std::pair<Integer,Integer> > fmap_host(out_grid->lSites()); //lsites = osites*Nsimd
-    thread_for(out_oidx,out_grid->oSites(),{
-	Coordinate out_ocorr; 
-	out_grid->oCoorFromOindex(out_ocorr, out_oidx);
-      
-	Coordinate lcorr; //the local coordinate (common to both in and out as full coordinate)
-	for(int out_lane=0; out_lane < Nsimd_out; out_lane++){
-	  out_grid->InOutCoorToLocalCoor(out_ocorr, out_icorrs[out_lane], lcorr);
-	
-	  //int in_oidx = in_grid->oIndex(lcorr), in_lane = in_grid->iIndex(lcorr);
-	  //Note oIndex and OcorrFromOindex (and same for iIndex) are not inverse for checkerboarded lattice, the former coordinates being defined on the full lattice and the latter on the reduced lattice
-	  //Until this is fixed we need to circumvent the problem locally. Here I will use the coordinates defined on the reduced lattice for simplicity
-	  int in_oidx = 0, in_lane = 0;
-	  for(int d=0;d<in_grid->_ndimension;d++){
-	    in_oidx += in_grid->_ostride[d] * ( lcorr[d] % in_grid->_rdimensions[d] );
-	    in_lane += in_grid->_istride[d] * ( lcorr[d] / in_grid->_rdimensions[d] );
-	  }
-	  fmap_host[out_lane + Nsimd_out*out_oidx] = std::pair<Integer,Integer>( in_oidx, in_lane );
-	}
-      });
-
-    //Copy the map to the device (if we had a way to tell if an accelerator is in use we could avoid this copy for CPU-only machines)
-    size_t fmap_bytes = out_grid->lSites() * sizeof(std::pair<Integer,Integer>);
-    fmap_device = (std::pair<Integer,Integer>*)acceleratorAllocDevice(fmap_bytes);
-    acceleratorCopyToDevice(fmap_host.data(), fmap_device, fmap_bytes); 
-  }
-
-  //Prevent moving or copying
-  precisionChangeWorkspace(const precisionChangeWorkspace &r) = delete;
-  precisionChangeWorkspace(precisionChangeWorkspace &&r) = delete;
-  precisionChangeWorkspace &operator=(const precisionChangeWorkspace &r) = delete;
-  precisionChangeWorkspace &operator=(precisionChangeWorkspace &&r) = delete;
-  
-  std::pair<Integer,Integer> const* getMap() const{ return fmap_device; }
-
-  ~precisionChangeWorkspace(){
-    acceleratorFreeDevice(fmap_device);
-  }
-};
-
-
-//Convert a lattice of one precision to another. The input workspace contains the mapping data.
-template<class VobjOut, class VobjIn>
-void precisionChange(Lattice<VobjOut> &out, const Lattice<VobjIn> &in, const precisionChangeWorkspace &workspace){
-  static_assert( std::is_same<typename VobjOut::DoublePrecision, typename VobjIn::DoublePrecision>::value == 1, "copyLane: tensor types must be the same" ); //if tensor types are same the DoublePrecision type must be the same
-
-  out.Checkerboard() = in.Checkerboard();
-  constexpr int Nsimd_out = VobjOut::Nsimd();
-
-  std::pair<Integer,Integer> const* fmap_device = workspace.getMap();
-
-  //Do the copy/precision change
-  autoView( out_v , out, AcceleratorWrite);
-  autoView( in_v , in, AcceleratorRead);
-
-  accelerator_for(out_oidx, out.Grid()->oSites(), 1,{
-      std::pair<Integer,Integer> const* fmap_osite = fmap_device + out_oidx*Nsimd_out;
-      for(int out_lane=0; out_lane < Nsimd_out; out_lane++){      
-	int in_oidx = fmap_osite[out_lane].first;
-	int in_lane = fmap_osite[out_lane].second;
-	copyLane(out_v[out_oidx], out_lane, in_v[in_oidx], in_lane);
-      }
-    });
-}
-
 //Convert a Lattice from one precision to another
-//Generate the workspace in place; if multiple calls with the same mapping are performed, consider pregenerating the workspace and reusing
 template<class VobjOut, class VobjIn>
-void precisionChange(Lattice<VobjOut> &out, const Lattice<VobjIn> &in){
-  precisionChangeWorkspace workspace(out.Grid(), in.Grid());
-  precisionChange(out, in, workspace);
-}
+void precisionChange(Lattice<VobjOut> &out, const Lattice<VobjIn> &in)
+{
+  assert(out.Grid()->Nd() == in.Grid()->Nd());
+  for(int d=0;d<out.Grid()->Nd();d++){
+    assert(out.Grid()->FullDimensions()[d] == in.Grid()->FullDimensions()[d]);
+  }
+  out.Checkerboard() = in.Checkerboard();
+  GridBase *in_grid=in.Grid();
+  GridBase *out_grid = out.Grid();
 
+  typedef typename VobjOut::scalar_object SobjOut;
+  typedef typename VobjIn::scalar_object SobjIn;
+
+  int ndim = out.Grid()->Nd();
+  int out_nsimd = out_grid->Nsimd();
+    
+  std::vector<Coordinate > out_icoor(out_nsimd);
+      
+  for(int lane=0; lane < out_nsimd; lane++){
+    out_icoor[lane].resize(ndim);
+    out_grid->iCoorFromIindex(out_icoor[lane], lane);
+  }
+        
+  std::vector<SobjOut> in_slex_conv(in_grid->lSites());
+  unvectorizeToLexOrdArray(in_slex_conv, in);
+    
+  autoView( out_v , out, CpuWrite);
+  thread_for(out_oidx,out_grid->oSites(),{
+    Coordinate out_ocoor(ndim);
+    out_grid->oCoorFromOindex(out_ocoor, out_oidx);
+
+    ExtractPointerArray<SobjOut> ptrs(out_nsimd);      
+
+    Coordinate lcoor(out_grid->Nd());
+      
+    for(int lane=0; lane < out_nsimd; lane++){
+      for(int mu=0;mu<ndim;mu++)
+	lcoor[mu] = out_ocoor[mu] + out_grid->_rdimensions[mu]*out_icoor[lane][mu];
+	
+      int llex; Lexicographic::IndexFromCoor(lcoor, llex, out_grid->_ldimensions);
+      ptrs[lane] = &in_slex_conv[llex];
+    }
+    merge(out_v[out_oidx], ptrs, 0);
+  });
+}
 
 ////////////////////////////////////////////////////////////////////////////////
 // Communicate between grids

Grid/log/Log.cc

@@ -69,7 +69,6 @@ GridLogger GridLogDebug  (1, "Debug", GridLogColours, "PURPLE");
 GridLogger GridLogPerformance(1, "Performance", GridLogColours, "GREEN");
 GridLogger GridLogIterative  (1, "Iterative", GridLogColours, "BLUE");
 GridLogger GridLogIntegrator (1, "Integrator", GridLogColours, "BLUE");
-GridLogger GridLogHMC (1, "HMC", GridLogColours, "BLUE");
 
 void GridLogConfigure(std::vector<std::string> &logstreams) {
   GridLogError.Active(0);
@@ -80,7 +79,6 @@ void GridLogConfigure(std::vector<std::string> &logstreams) {
   GridLogPerformance.Active(0);
   GridLogIntegrator.Active(1);
   GridLogColours.Active(0);
-  GridLogHMC.Active(1);
 
   for (int i = 0; i < logstreams.size(); i++) {
     if (logstreams[i] == std::string("Error"))       GridLogError.Active(1);
@@ -89,8 +87,7 @@ void GridLogConfigure(std::vector<std::string> &logstreams) {
     if (logstreams[i] == std::string("Iterative"))   GridLogIterative.Active(1);
     if (logstreams[i] == std::string("Debug"))       GridLogDebug.Active(1);
     if (logstreams[i] == std::string("Performance")) GridLogPerformance.Active(1);
-    if (logstreams[i] == std::string("NoIntegrator"))  GridLogIntegrator.Active(0);
-    if (logstreams[i] == std::string("NoHMC"))         GridLogHMC.Active(0);
+    if (logstreams[i] == std::string("Integrator"))  GridLogIntegrator.Active(1);
     if (logstreams[i] == std::string("Colours"))     GridLogColours.Active(1);
   }
 }

Grid/log/Log.h

@@ -182,7 +182,6 @@ extern GridLogger GridLogDebug  ;
 extern GridLogger GridLogPerformance;
 extern GridLogger GridLogIterative  ;
 extern GridLogger GridLogIntegrator  ;
-extern GridLogger GridLogHMC;
 extern Colours    GridLogColours;
 
 std::string demangle(const char* name) ;

Grid/parallelIO/IldgIO.h

@@ -576,6 +576,8 @@ class ScidacReader : public GridLimeReader {
     std::string rec_name(ILDG_BINARY_DATA);
     while ( limeReaderNextRecord(LimeR) == LIME_SUCCESS ) { 
       if ( !strncmp(limeReaderType(LimeR), rec_name.c_str(),strlen(rec_name.c_str()) )  ) {
+  // in principle should do the line below, but that breaks backard compatibility with old data
+  // skipPastObjectRecord(std::string(GRID_FIELD_NORM));
 	skipPastObjectRecord(std::string(SCIDAC_CHECKSUM));
 	return;
       }

Grid/parallelIO/NerscIO.h

@@ -39,10 +39,8 @@ using namespace Grid;
 ////////////////////////////////////////////////////////////////////////////////
 class NerscIO : public BinaryIO { 
 public:
-  typedef Lattice<vLorentzColourMatrixD> GaugeField;
 
-  // Enable/disable exiting if the plaquette in the header does not match the value computed (default true)
-  static bool & exitOnReadPlaquetteMismatch(){ static bool v=true; return v; }
+  typedef Lattice<vLorentzColourMatrixD> GaugeField;
 
   static inline void truncate(std::string file){
     std::ofstream fout(file,std::ios::out);
@@ -200,7 +198,7 @@ public:
       std::cerr << " nersc_csum  " <<std::hex<< nersc_csum << " " << header.checksum<< std::dec<< std::endl;
       exit(0);
     }
-    if(exitOnReadPlaquetteMismatch()) assert(fabs(clone.plaquette -header.plaquette ) < 1.0e-5 );
+    assert(fabs(clone.plaquette -header.plaquette ) < 1.0e-5 );
     assert(fabs(clone.link_trace-header.link_trace) < 1.0e-6 );
     assert(nersc_csum == header.checksum );
       

Grid/qcd/QCD.h

@@ -63,7 +63,6 @@ static constexpr int Ngp=2; // gparity index range
 #define ColourIndex  (2)
 #define SpinIndex    (1)
 #define LorentzIndex (0)
-#define GparityFlavourIndex (0)
 
 // Also should make these a named enum type
 static constexpr int DaggerNo=0;
@@ -88,8 +87,6 @@ template<typename T> struct isCoarsened {
 template <typename T> using IfCoarsened    = Invoke<std::enable_if< isCoarsened<T>::value,int> > ;
 template <typename T> using IfNotCoarsened = Invoke<std::enable_if<!isCoarsened<T>::value,int> > ;
 
-const int GparityFlavourTensorIndex = 3; //TensorLevel counts from the bottom!
-
 // ChrisK very keen to add extra space for Gparity doubling.
 //
 // Also add domain wall index, in a way where Wilson operator 
@@ -104,7 +101,6 @@ template<typename vtype> using iSpinMatrix                = iScalar<iMatrix<iSca
 template<typename vtype> using iColourMatrix              = iScalar<iScalar<iMatrix<vtype, Nc> > > ;
 template<typename vtype> using iSpinColourMatrix          = iScalar<iMatrix<iMatrix<vtype, Nc>, Ns> >;
 template<typename vtype> using iLorentzColourMatrix       = iVector<iScalar<iMatrix<vtype, Nc> >, Nd > ;
-template<typename vtype> using iLorentzVector             = iVector<iScalar<iScalar<vtype> >, Nd > ;
 template<typename vtype> using iDoubleStoredColourMatrix  = iVector<iScalar<iMatrix<vtype, Nc> >, Nds > ;
 template<typename vtype> using iSpinVector                = iScalar<iVector<iScalar<vtype>, Ns> >;
 template<typename vtype> using iColourVector              = iScalar<iScalar<iVector<vtype, Nc> > >;
@@ -114,10 +110,8 @@ template<typename vtype> using iHalfSpinColourVector      = iScalar<iVector<iVec
     template<typename vtype> using iSpinColourSpinColourMatrix  = iScalar<iMatrix<iMatrix<iMatrix<iMatrix<vtype, Nc>, Ns>, Nc>, Ns> >;
 
 
-template<typename vtype> using iGparityFlavourVector                = iVector<iScalar<iScalar<vtype> >, Ngp>;
 template<typename vtype> using iGparitySpinColourVector       = iVector<iVector<iVector<vtype, Nc>, Ns>, Ngp >;
 template<typename vtype> using iGparityHalfSpinColourVector   = iVector<iVector<iVector<vtype, Nc>, Nhs>, Ngp >;
-template<typename vtype> using iGparityFlavourMatrix = iMatrix<iScalar<iScalar<vtype> >, Ngp>;
 
 // Spin matrix
 typedef iSpinMatrix<Complex  >          SpinMatrix;
@@ -164,16 +158,7 @@ typedef iSpinColourSpinColourMatrix<vComplex >    vSpinColourSpinColourMatrix;
 typedef iSpinColourSpinColourMatrix<vComplexF>    vSpinColourSpinColourMatrixF;
 typedef iSpinColourSpinColourMatrix<vComplexD>    vSpinColourSpinColourMatrixD;
 
-// LorentzVector
-typedef iLorentzVector<Complex  > LorentzVector;
-typedef iLorentzVector<ComplexF > LorentzVectorF;
-typedef iLorentzVector<ComplexD > LorentzVectorD;
-
-typedef iLorentzVector<vComplex > vLorentzVector;
-typedef iLorentzVector<vComplexF> vLorentzVectorF;
-typedef iLorentzVector<vComplexD> vLorentzVectorD;
-
-// LorentzColourMatrix
+// LorentzColour
 typedef iLorentzColourMatrix<Complex  > LorentzColourMatrix;
 typedef iLorentzColourMatrix<ComplexF > LorentzColourMatrixF;
 typedef iLorentzColourMatrix<ComplexD > LorentzColourMatrixD;
@@ -191,16 +176,6 @@ typedef iDoubleStoredColourMatrix<vComplex > vDoubleStoredColourMatrix;
 typedef iDoubleStoredColourMatrix<vComplexF> vDoubleStoredColourMatrixF;
 typedef iDoubleStoredColourMatrix<vComplexD> vDoubleStoredColourMatrixD;
 
-//G-parity flavour matrix
-typedef iGparityFlavourMatrix<Complex> GparityFlavourMatrix;
-typedef iGparityFlavourMatrix<ComplexF> GparityFlavourMatrixF;
-typedef iGparityFlavourMatrix<ComplexD> GparityFlavourMatrixD;
-
-typedef iGparityFlavourMatrix<vComplex> vGparityFlavourMatrix;
-typedef iGparityFlavourMatrix<vComplexF> vGparityFlavourMatrixF;
-typedef iGparityFlavourMatrix<vComplexD> vGparityFlavourMatrixD;
-
-
 // Spin vector
 typedef iSpinVector<Complex >           SpinVector;
 typedef iSpinVector<ComplexF>           SpinVectorF;
@@ -245,16 +220,6 @@ typedef iHalfSpinColourVector<ComplexD> HalfSpinColourVectorD;
 typedef iHalfSpinColourVector<vComplex > vHalfSpinColourVector;
 typedef iHalfSpinColourVector<vComplexF> vHalfSpinColourVectorF;
 typedef iHalfSpinColourVector<vComplexD> vHalfSpinColourVectorD;
-
-//G-parity flavour vector
-typedef iGparityFlavourVector<Complex >         GparityFlavourVector;
-typedef iGparityFlavourVector<ComplexF>         GparityFlavourVectorF;
-typedef iGparityFlavourVector<ComplexD>         GparityFlavourVectorD;
-
-typedef iGparityFlavourVector<vComplex >         vGparityFlavourVector;
-typedef iGparityFlavourVector<vComplexF>         vGparityFlavourVectorF;
-typedef iGparityFlavourVector<vComplexD>         vGparityFlavourVectorD;
-
     
 // singlets
 typedef iSinglet<Complex >         TComplex;     // FIXME This is painful. Tensor singlet complex type.
@@ -298,10 +263,6 @@ typedef Lattice<vLorentzColourMatrix>  LatticeLorentzColourMatrix;
 typedef Lattice<vLorentzColourMatrixF> LatticeLorentzColourMatrixF;
 typedef Lattice<vLorentzColourMatrixD> LatticeLorentzColourMatrixD;
 
-typedef Lattice<vLorentzVector>  LatticeLorentzVector;
-typedef Lattice<vLorentzVectorF> LatticeLorentzVectorF;
-typedef Lattice<vLorentzVectorD> LatticeLorentzVectorD;
-
 // DoubleStored gauge field
 typedef Lattice<vDoubleStoredColourMatrix>  LatticeDoubleStoredColourMatrix;
 typedef Lattice<vDoubleStoredColourMatrixF> LatticeDoubleStoredColourMatrixF;

Grid/qcd/action/Action.h

@@ -30,7 +30,8 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
     See the full license in the file "LICENSE" in the top level distribution directory
     *************************************************************************************/
     /*  END LEGAL */
-#pragma once
+#ifndef GRID_QCD_ACTION_H
+#define GRID_QCD_ACTION_H
 
 ////////////////////////////////////////////
 // Abstract base interface
@@ -50,4 +51,4 @@ NAMESPACE_CHECK(Fermion);
 #include <Grid/qcd/action/pseudofermion/PseudoFermion.h>
 NAMESPACE_CHECK(PseudoFermion);
 
-
+#endif

Grid/qcd/action/ActionBase.h

@@ -40,29 +40,6 @@ class Action
 
 public:
   bool is_smeared = false;
-  RealD deriv_norm_sum;
-  RealD deriv_max_sum;
-  int   deriv_num;
-  RealD deriv_us;
-  RealD S_us;
-  RealD refresh_us;
-  void  reset_timer(void)        {
-    deriv_us = S_us = refresh_us = 0.0;
-    deriv_num=0;
-    deriv_norm_sum = deriv_max_sum=0.0;
-  }
-  void  deriv_log(RealD nrm, RealD max) { deriv_max_sum+=max; deriv_norm_sum+=nrm; deriv_num++;}
-  RealD deriv_max_average(void)         { return deriv_max_sum/deriv_num; };
-  RealD deriv_norm_average(void)        { return deriv_norm_sum/deriv_num; };
-  RealD deriv_timer(void)        { return deriv_us; };
-  RealD S_timer(void)            { return deriv_us; };
-  RealD refresh_timer(void)      { return deriv_us; };
-  void deriv_timer_start(void)   { deriv_us-=usecond(); }
-  void deriv_timer_stop(void)    { deriv_us+=usecond(); }
-  void refresh_timer_start(void) { refresh_us-=usecond(); }
-  void refresh_timer_stop(void)  { refresh_us+=usecond(); }
-  void S_timer_start(void)       { S_us-=usecond(); }
-  void S_timer_stop(void)        { S_us+=usecond(); }
   // Heatbath?
   virtual void refresh(const GaugeField& U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) = 0; // refresh pseudofermions
   virtual RealD S(const GaugeField& U) = 0;                             // evaluate the action

Grid/qcd/action/ActionCore.h

@@ -58,8 +58,6 @@ NAMESPACE_CHECK(Scalar);
 ////////////////////////////////////////////
 // Utility functions
 ////////////////////////////////////////////
-#include <Grid/qcd/action/domains/Domains.h>
-
 #include <Grid/qcd/utils/Metric.h>
 NAMESPACE_CHECK(Metric);
 #include <Grid/qcd/utils/CovariantLaplacian.h>

Grid/qcd/action/ActionParams.h

@@ -36,34 +36,28 @@ NAMESPACE_BEGIN(Grid);
 
 // These can move into a params header and be given MacroMagic serialisation
 struct GparityWilsonImplParams {
-  Coordinate twists; //Here the first Nd-1 directions are treated as "spatial", and a twist value of 1 indicates G-parity BCs in that direction. 
-                     //mu=Nd-1 is assumed to be the time direction and a twist value of 1 indicates antiperiodic BCs
-  bool locally_periodic;
-  GparityWilsonImplParams() : twists(Nd, 0), locally_periodic(false) {};
+  Coordinate twists;
+  GparityWilsonImplParams() : twists(Nd, 0) {};
 };
   
 struct WilsonImplParams {
   bool overlapCommsCompute;
-  bool locally_periodic;
   AcceleratorVector<Real,Nd> twist_n_2pi_L;
   AcceleratorVector<Complex,Nd> boundary_phases;
   WilsonImplParams()  {
     boundary_phases.resize(Nd, 1.0);
       twist_n_2pi_L.resize(Nd, 0.0);
-      locally_periodic = false;
   };
   WilsonImplParams(const AcceleratorVector<Complex,Nd> phi) : boundary_phases(phi), overlapCommsCompute(false) {
     twist_n_2pi_L.resize(Nd, 0.0);
-    locally_periodic = false;
   }
 };
 
 struct StaggeredImplParams {
-  bool locally_periodic;
-  StaggeredImplParams() : locally_periodic(false) {};
+  StaggeredImplParams()  {};
 };
   
-struct OneFlavourRationalParams : Serializable {
+  struct OneFlavourRationalParams : Serializable {
     GRID_SERIALIZABLE_CLASS_MEMBERS(OneFlavourRationalParams, 
 				    RealD, lo, 
 				    RealD, hi, 
@@ -91,50 +85,6 @@ struct OneFlavourRationalParams : Serializable {
         precision(_precision),
         BoundsCheckFreq(_BoundsCheckFreq){};
   };
-
-
-  /*Action parameters for the generalized rational action
-    The approximation is for (M^dag M)^{1/inv_pow}
-    where inv_pow is the denominator of the fractional power.
-    Default inv_pow=2 for square root, making this equivalent to 
-    the OneFlavourRational action
-  */
-    struct RationalActionParams : Serializable {
-    GRID_SERIALIZABLE_CLASS_MEMBERS(RationalActionParams, 
-				    int, inv_pow, 
-				    RealD, lo, //low eigenvalue bound of rational approx
-				    RealD, hi, //high eigenvalue bound of rational approx
-				    int,   MaxIter,  //maximum iterations in msCG
-				    RealD, action_tolerance,  //msCG tolerance in action evaluation
-				    int,   action_degree, //rational approx tolerance in action evaluation
-				    RealD, md_tolerance,  //msCG tolerance in MD integration
-				    int,   md_degree, //rational approx tolerance in MD integration
-				    int,   precision, //precision of floating point arithmetic
-				    int,   BoundsCheckFreq); //frequency the approximation is tested (with Metropolis degree/tolerance); 0 disables the check
-  // constructor 
-  RationalActionParams(int _inv_pow = 2,
-		       RealD _lo      = 0.0, 
-		       RealD _hi      = 1.0, 
-		       int _maxit     = 1000,
-		       RealD _action_tolerance      = 1.0e-8, 
-		       int _action_degree    = 10,
-		       RealD _md_tolerance      = 1.0e-8, 
-		       int _md_degree    = 10,
-		       int _precision = 64,
-		       int _BoundsCheckFreq=20)
-    : inv_pow(_inv_pow), 
-      lo(_lo),
-      hi(_hi),
-      MaxIter(_maxit),
-      action_tolerance(_action_tolerance),
-      action_degree(_action_degree),
-      md_tolerance(_md_tolerance),
-      md_degree(_md_degree),
-      precision(_precision),
-      BoundsCheckFreq(_BoundsCheckFreq){};
-  };
-
-
   
 NAMESPACE_END(Grid);
 

Grid/qcd/action/domains/DDHMCFilter.h

@@ -1,52 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./lib/qcd/hmc/DDHMC.h
-
-Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-Author: Christopher Kelly
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-			   /*  END LEGAL */
-
-NAMESPACE_BEGIN(Grid);
-////////////////////////////////////////////////////
-// DDHMC filter with sub-block size B[mu]
-////////////////////////////////////////////////////
-
-template<typename MomentaField>
-struct DDHMCFilter: public MomentumFilterBase<MomentaField>
-{
-  Coordinate Block;
-  int Width;
-  
-  DDHMCFilter(const Coordinate &_Block): Block(_Block) {}
-
-  void applyFilter(MomentaField &P) const override
-  {
-    DomainDecomposition Domains(Block);
-    Domains.ProjectDDHMC(P);
-  }
-};
-
-NAMESPACE_END(Grid);
-

Grid/qcd/action/domains/DirichletFilter.h

@@ -1,98 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./lib/qcd/action/momentum/DirichletFilter.h
-
-Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-			   /*  END LEGAL */
-
-////////////////////////////////////////////////////
-// Dirichlet filter with sub-block size B[mu]
-////////////////////////////////////////////////////
-#pragma once 
-
-#include <Grid/qcd/action/domains/DomainDecomposition.h>
-
-NAMESPACE_BEGIN(Grid);
-
-
-template<typename MomentaField>
-struct DirichletFilter: public MomentumFilterBase<MomentaField>
-{
-  Coordinate Block;
-  
-  DirichletFilter(const Coordinate &_Block): Block(_Block) {}
-
-  // Edge detect using domain projectors
-  void applyFilter (MomentaField &U) const override
-  {
-    DomainDecomposition Domains(Block);
-    GridBase *grid = U.Grid();
-    LatticeInteger  coor(grid);
-    LatticeInteger  face(grid);
-    LatticeInteger  one(grid);   one = 1;
-    LatticeInteger  zero(grid); zero = 0;
-    LatticeInteger  omega(grid);
-    LatticeInteger  omegabar(grid);
-    LatticeInteger  tmp(grid);
-
-    omega=one;    Domains.ProjectDomain(omega,0);
-    omegabar=one; Domains.ProjectDomain(omegabar,1);
-    
-    LatticeInteger nface(grid); nface=Zero();
-    
-    MomentaField projected(grid); projected=Zero();
-    typedef decltype(PeekIndex<LorentzIndex>(U,0)) MomentaLinkField;
-    MomentaLinkField  Umu(grid);
-    MomentaLinkField   zz(grid); zz=Zero();
-
-    int dims = grid->Nd();
-    Coordinate Global=grid->GlobalDimensions();
-    assert(dims==Nd);
-
-    for(int mu=0;mu<Nd;mu++){
-
-      if ( Block[mu]!=0 ) {
-
-	Umu = PeekIndex<LorentzIndex>(U,mu);
-
-	// Upper face 
- 	tmp = Cshift(omegabar,mu,1);
-	tmp = tmp + omega;
-	face = where(tmp == Integer(2),one,zero );
-
- 	tmp = Cshift(omega,mu,1);
-	tmp = tmp + omegabar;
-	face = where(tmp == Integer(2),one,face );
-
-	Umu = where(face,zz,Umu);
-
-	PokeIndex<LorentzIndex>(U, Umu, mu);
-      }
-    }
-  }
-  
-};
-
-NAMESPACE_END(Grid);

Grid/qcd/action/domains/DomainDecomposition.h

@@ -1,187 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./lib/qcd/action/domains/DomainDecomposition.h
-
-Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-			   /*  END LEGAL */
-
-////////////////////////////////////////////////////
-// Dirichlet filter with sub-block size B[mu]
-////////////////////////////////////////////////////
-#pragma once 
-
-
-NAMESPACE_BEGIN(Grid);
-
-
-struct DomainDecomposition
-{
-  Coordinate Block;
-  static constexpr RealD factor = 0.6;
-
-  DomainDecomposition(const Coordinate &_Block): Block(_Block){ assert(Block.size()==Nd);};
-  
-  template<class Field>
-  void ProjectDomain(Field &f,Integer domain)
-  {
-    GridBase *grid = f.Grid();
-    int dims = grid->Nd();
-    int isDWF= (dims==Nd+1);
-    assert((dims==Nd)||(dims==Nd+1));
-
-    Field   zz(grid);  zz = Zero();
-    LatticeInteger coor(grid);
-    LatticeInteger domaincoor(grid);
-    LatticeInteger mask(grid); mask = Integer(1);
-    LatticeInteger zi(grid);     zi = Integer(0);
-    for(int d=0;d<Nd;d++){
-      Integer B= Block[d];
-      if ( B ) {
-	LatticeCoordinate(coor,d+isDWF);
-	domaincoor = mod(coor,B);
-	mask = where(domaincoor==Integer(0),zi,mask);
-	mask = where(domaincoor==Integer(B-1),zi,mask);
-      }
-    }
-    if ( !domain )
-      f = where(mask==Integer(1),f,zz);
-    else 
-      f = where(mask==Integer(0),f,zz);
-  };
-  template<class GaugeField>
-  void ProjectDDHMC(GaugeField &U)
-  {
-    GridBase *grid = U.Grid();
-    Coordinate Global=grid->GlobalDimensions();
-    GaugeField zzz(grid); zzz = Zero();
-    LatticeInteger coor(grid); 
-
-    GaugeField Uorg(grid); Uorg = U;
-    
-    auto zzz_mu = PeekIndex<LorentzIndex>(zzz,0);
-    ////////////////////////////////////////////////////
-    // Zero BDY layers
-    ////////////////////////////////////////////////////
-    for(int mu=0;mu<Nd;mu++) {
-      Integer B1 = Block[mu];
-      if ( B1 && (B1 <= Global[mu]) ) {
-	LatticeCoordinate(coor,mu);
-
-
-	////////////////////////////////
-	// OmegaBar - zero all links contained in slice B-1,0 and
-	// mu links connecting to Omega
-	////////////////////////////////
-
-	U    = where(mod(coor,B1)==Integer(B1-1),zzz,U);
-	U    = where(mod(coor,B1)==Integer(0)   ,zzz,U); 
-
-	auto U_mu   = PeekIndex<LorentzIndex>(U,mu);
-	U_mu = where(mod(coor,B1)==Integer(B1-2),zzz_mu,U_mu); 
-	PokeIndex<LorentzIndex>(U, U_mu, mu);
-
-      }
-    }
-   
-    ////////////////////////////////////////////
-    // Omega interior slow the evolution
-    // Tricky as we need to take the smallest of values imposed by each cut
-    // Do them in order or largest to smallest and smallest writes last
-    ////////////////////////////////////////////
-    RealD f= factor;
-#if 0    
-    for(int mu=0;mu<Nd;mu++) {
-      Integer B1 = Block[mu];
-      if ( B1 && (B1 <= Global[mu]) ) {
-
-	auto U_mu   = PeekIndex<LorentzIndex>(U,mu);
-	auto Uorg_mu= PeekIndex<LorentzIndex>(Uorg,mu);
-	// In the plane
-	U = where(mod(coor,B1)==Integer(B1-5),Uorg*f,U); 
-	U = where(mod(coor,B1)==Integer(4)   ,Uorg*f,U); 
-
-	// Perp links
-       	U_mu = where(mod(coor,B1)==Integer(B1-6),Uorg_mu*f,U_mu);
-	U_mu = where(mod(coor,B1)==Integer(4)   ,Uorg_mu*f,U_mu);
-
-	PokeIndex<LorentzIndex>(U, U_mu, mu);
-      }
-    }
-#endif
-    for(int mu=0;mu<Nd;mu++) {
-      Integer B1 = Block[mu];
-      if ( B1 && (B1 <= Global[mu]) ) {
-
-	auto U_mu   = PeekIndex<LorentzIndex>(U,mu);
-	auto Uorg_mu= PeekIndex<LorentzIndex>(Uorg,mu);
-	// In the plane
-	U = where(mod(coor,B1)==Integer(B1-4),Uorg*f*f,U); 
-	U = where(mod(coor,B1)==Integer(3)   ,Uorg*f*f,U); 
-
-	// Perp links
-       	U_mu = where(mod(coor,B1)==Integer(B1-5),Uorg_mu*f*f,U_mu);
-	U_mu = where(mod(coor,B1)==Integer(3)   ,Uorg_mu*f*f,U_mu);
-
-	PokeIndex<LorentzIndex>(U, U_mu, mu);
-      }
-    }
-    for(int mu=0;mu<Nd;mu++) {
-      Integer B1 = Block[mu];
-      if ( B1 && (B1 <= Global[mu]) ) {
-
-	auto U_mu   = PeekIndex<LorentzIndex>(U,mu);
-	auto Uorg_mu= PeekIndex<LorentzIndex>(Uorg,mu);
-	// In the plane
-	U = where(mod(coor,B1)==Integer(B1-3),Uorg*f*f*f,U); 
-	U = where(mod(coor,B1)==Integer(2)   ,Uorg*f*f*f,U); 
-
-	// Perp links
-       	U_mu = where(mod(coor,B1)==Integer(B1-4),Uorg_mu*f*f*f,U_mu);
-	U_mu = where(mod(coor,B1)==Integer(2)   ,Uorg_mu*f*f*f,U_mu);
-
-	PokeIndex<LorentzIndex>(U, U_mu, mu);
-      }
-    }
-    for(int mu=0;mu<Nd;mu++) {
-      Integer B1 = Block[mu];
-      if ( B1 && (B1 <= Global[mu]) ) {
-
-	auto U_mu   = PeekIndex<LorentzIndex>(U,mu);
-	auto Uorg_mu= PeekIndex<LorentzIndex>(Uorg,mu);
-	// In the plane
-	U = where(mod(coor,B1)==Integer(B1-2),zzz,U); 
-	U = where(mod(coor,B1)==Integer(1)   ,zzz,U); 
-
-	// Perp links
-	U_mu = where(mod(coor,B1)==Integer(B1-3),Uorg_mu*f*f*f*f,U_mu);
-	U_mu = where(mod(coor,B1)==Integer(1)   ,Uorg_mu*f*f*f*f,U_mu);
-
-	PokeIndex<LorentzIndex>(U, U_mu, mu);
-      }
-    }
-  }
-};
-
-NAMESPACE_END(Grid);

Grid/qcd/action/domains/Domains.h

@@ -1,39 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./lib/qcd/action/momentum/Domains.h
-
-Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-			   /*  END LEGAL */
-
-////////////////////////////////////////////////////
-// Dirichlet filter with sub-block size B[mu]
-////////////////////////////////////////////////////
-#pragma once 
-
-#include <Grid/qcd/action/domains/DomainDecomposition.h>
-#include <Grid/qcd/action/domains/MomentumFilter.h>
-#include <Grid/qcd/action/domains/DirichletFilter.h>
-#include <Grid/qcd/action/domains/DDHMCFilter.h>
-

Grid/qcd/action/fermion/CayleyFermion5D.h

@@ -60,8 +60,6 @@ public:
   ///////////////////////////////////////////////////////////////
   virtual void Dminus(const FermionField &psi, FermionField &chi);
   virtual void DminusDag(const FermionField &psi, FermionField &chi);
-  virtual void ImportFourDimPseudoFermion(const FermionField &input,FermionField &imported);
-  virtual void ExportFourDimPseudoFermion(const FermionField &solution,FermionField &exported);
   virtual void ExportPhysicalFermionSolution(const FermionField &solution5d,FermionField &exported4d);
   virtual void ExportPhysicalFermionSource(const FermionField &solution5d, FermionField &exported4d);
   virtual void ImportPhysicalFermionSource(const FermionField &input4d,FermionField &imported5d);

Grid/qcd/action/fermion/DirichletFermionOperator.h

@@ -1,185 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/fermion/DirichletFermionOperator.h
-
-    Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-////////////////////////////////////////////////////////////////
-// Wrap a fermion operator in Dirichlet BC's at node boundary
-////////////////////////////////////////////////////////////////
-    
-template<class Impl>
-class DirichletFermionOperator : public FermionOperator<Impl>
-{
-public:
-
-  INHERIT_IMPL_TYPES(Impl);
-
-  // Data members
-  int CommsMode;
-  Coordinate Block;
-  DirichletFilter<GaugeField> Filter;
-  FermionOperator<Impl> & FermOp;
-  
-  // Constructor / bespoke
-  DirichletFermionOperator(FermionOperator<Impl> & _FermOp, Coordinate &_Block)
-    : FermOp(_FermOp), Block(_Block), Filter(Block)
-  {
-    // Save what the comms mode should be under normal BCs
-    CommsMode = WilsonKernelsStatic::Comms;
-    assert((CommsMode == WilsonKernelsStatic::CommsAndCompute)
-         ||(CommsMode == WilsonKernelsStatic::CommsThenCompute));
-
-    // Check the block size divides local lattice
-    GridBase *grid = FermOp.GaugeGrid();
-
-    int blocks_per_rank = 1;
-    Coordinate LocalDims = grid->LocalDimensions();
-    Coordinate GlobalDims= grid->GlobalDimensions();
-    assert(Block.size()==LocalDims.size());
-
-    for(int d=0;d<LocalDims.size();d++){
-      if (Block[d]&&(Block[d]<=GlobalDims[d])){
-	int r = LocalDims[d] % Block[d];
-	assert(r == 0);
-	blocks_per_rank *= (LocalDims[d] / Block[d]);
-      }
-    }
-    // Even blocks per node required // could be relaxed but inefficient use of hardware as idle nodes in boundary operator R
-    assert( blocks_per_rank != 0);
-
-    // Possible checks that SIMD lanes are used with full occupancy???
-  };
-  virtual ~DirichletFermionOperator(void) = default;
-
-  void DirichletOn(void)   {
-    assert(WilsonKernelsStatic::Comms!= WilsonKernelsStatic::CommsDirichlet);
-    //    WilsonKernelsStatic::Comms = WilsonKernelsStatic::CommsDirichlet;
-  }
-  void DirichletOff(void)  {
-    //    assert(WilsonKernelsStatic::Comms== WilsonKernelsStatic::CommsDirichlet);
-    //    WilsonKernelsStatic::Comms = CommsMode;
-  }
-
-  // Implement the full interface
-  virtual FermionField &tmp(void) { return FermOp.tmp(); };
-
-  virtual GridBase *FermionGrid(void)         { return FermOp.FermionGrid(); }
-  virtual GridBase *FermionRedBlackGrid(void) { return FermOp.FermionRedBlackGrid(); }
-  virtual GridBase *GaugeGrid(void)           { return FermOp.GaugeGrid(); }
-  virtual GridBase *GaugeRedBlackGrid(void)   { return FermOp.GaugeRedBlackGrid(); }
-  
-  // override multiply
-  virtual void  M    (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.M(in,out);    DirichletOff();  };
-  virtual void  Mdag (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.Mdag(in,out); DirichletOff();  };
-
-  // half checkerboard operaions
-  virtual void   Meooe       (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.Meooe(in,out);    DirichletOff(); };  
-  virtual void   MeooeDag    (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.MeooeDag(in,out); DirichletOff(); };
-  virtual void   Mooee       (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.Mooee(in,out);    DirichletOff(); };
-  virtual void   MooeeDag    (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.MooeeDag(in,out); DirichletOff(); };
-  virtual void   MooeeInv    (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.MooeeInv(in,out); DirichletOff(); };
-  virtual void   MooeeInvDag (const FermionField &in, FermionField &out) { DirichletOn(); FermOp.MooeeInvDag(in,out); DirichletOff(); };
-
-  // non-hermitian hopping term; half cb or both
-  virtual void Dhop  (const FermionField &in, FermionField &out,int dag) { DirichletOn(); FermOp.Dhop(in,out,dag);    DirichletOff(); };
-  virtual void DhopOE(const FermionField &in, FermionField &out,int dag) { DirichletOn(); FermOp.DhopOE(in,out,dag);  DirichletOff(); };
-  virtual void DhopEO(const FermionField &in, FermionField &out,int dag) { DirichletOn(); FermOp.DhopEO(in,out,dag);  DirichletOff(); };
-  virtual void DhopDir(const FermionField &in, FermionField &out,int dir,int disp) { DirichletOn(); FermOp.DhopDir(in,out,dir,disp);  DirichletOff(); };
-
-  // force terms; five routines; default to Dhop on diagonal
-  virtual void MDeriv  (GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.MDeriv(mat,U,V,dag);};
-  virtual void MoeDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.MoeDeriv(mat,U,V,dag);};
-  virtual void MeoDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.MeoDeriv(mat,U,V,dag);};
-  virtual void MooDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.MooDeriv(mat,U,V,dag);};
-  virtual void MeeDeriv(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.MeeDeriv(mat,U,V,dag);};
-
-  virtual void DhopDeriv  (GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.DhopDeriv(mat,U,V,dag);};
-  virtual void DhopDerivEO(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.DhopDerivEO(mat,U,V,dag);};
-  virtual void DhopDerivOE(GaugeField &mat,const FermionField &U,const FermionField &V,int dag){FermOp.DhopDerivOE(mat,U,V,dag);};
-
-  virtual void  Mdiag  (const FermionField &in, FermionField &out) { Mooee(in,out);};
-  virtual void  Mdir   (const FermionField &in, FermionField &out,int dir,int disp){FermOp.Mdir(in,out,dir,disp);};
-  virtual void  MdirAll(const FermionField &in, std::vector<FermionField> &out)    {FermOp.MdirAll(in,out);};
-
-  ///////////////////////////////////////////////
-  // Updates gauge field during HMC
-  ///////////////////////////////////////////////
-  DoubledGaugeField &GetDoubledGaugeField(void){ return FermOp.GetDoubledGaugeField(); };
-  DoubledGaugeField &GetDoubledGaugeFieldE(void){ return FermOp.GetDoubledGaugeFieldE(); };
-  DoubledGaugeField &GetDoubledGaugeFieldO(void){ return FermOp.GetDoubledGaugeFieldO(); };
-  virtual void ImportGauge(const GaugeField & _U)
-  {
-    GaugeField U = _U;
-    // Filter gauge field to apply Dirichlet
-    Filter.applyFilter(U);
-    FermOp.ImportGauge(U);
-  }
-  ///////////////////////////////////////////////
-  // Physical field import/export
-  ///////////////////////////////////////////////
-  virtual void Dminus(const FermionField &psi, FermionField &chi)    { FermOp.Dminus(psi,chi); }
-  virtual void DminusDag(const FermionField &psi, FermionField &chi) { FermOp.DminusDag(psi,chi); }
-  virtual void ImportFourDimPseudoFermion(const FermionField &input,FermionField &imported)   { FermOp.ImportFourDimPseudoFermion(input,imported);}
-  virtual void ExportFourDimPseudoFermion(const FermionField &solution,FermionField &exported){ FermOp.ExportFourDimPseudoFermion(solution,exported);}
-  virtual void ImportPhysicalFermionSource(const FermionField &input,FermionField &imported)  { FermOp.ImportPhysicalFermionSource(input,imported);}
-  virtual void ImportUnphysicalFermion(const FermionField &input,FermionField &imported)      { FermOp.ImportUnphysicalFermion(input,imported);}
-  virtual void ExportPhysicalFermionSolution(const FermionField &solution,FermionField &exported) {FermOp.ExportPhysicalFermionSolution(solution,exported);}
-  virtual void ExportPhysicalFermionSource(const FermionField &solution,FermionField &exported)   {FermOp.ExportPhysicalFermionSource(solution,exported);}
-  //////////////////////////////////////////////////////////////////////
-  // Should never be used
-  //////////////////////////////////////////////////////////////////////
-  virtual void MomentumSpacePropagator(FermionField &out,const FermionField &in,RealD _m,std::vector<double> twist) { assert(0);};
-  virtual void FreePropagator(const FermionField &in,FermionField &out,RealD mass,std::vector<Complex> boundary,std::vector<double> twist) {assert(0);}
-  virtual void FreePropagator(const FermionField &in,FermionField &out,RealD mass) { assert(0);}
-  virtual void ContractConservedCurrent(PropagatorField &q_in_1,
-					PropagatorField &q_in_2,
-					PropagatorField &q_out,
-					PropagatorField &phys_src,
-					Current curr_type,
-					unsigned int mu)
-  {assert(0);};
-  virtual void SeqConservedCurrent(PropagatorField &q_in, 
-				   PropagatorField &q_out,
-				   PropagatorField &phys_src,
-				   Current curr_type,
-				   unsigned int mu,
-				   unsigned int tmin, 
-				   unsigned int tmax,
-				   ComplexField &lattice_cmplx)
-  {assert(0);};
-      // Only reimplemented in Wilson5D 
-      // Default to just a zero correlation function
-  virtual void ContractJ5q(FermionField &q_in   ,ComplexField &J5q) { J5q=Zero(); };
-  virtual void ContractJ5q(PropagatorField &q_in,ComplexField &J5q) { J5q=Zero(); };
-  
-};
-
-
-NAMESPACE_END(Grid);
-

Grid/qcd/action/fermion/Fermion.h

@@ -101,12 +101,6 @@ NAMESPACE_CHECK(WilsonTM5);
 #include <Grid/qcd/action/fermion/PauliVillarsInverters.h>
 #include <Grid/qcd/action/fermion/Reconstruct5Dprop.h>
 #include <Grid/qcd/action/fermion/MADWF.h>
-////////////////////////////////////////////////////////////////////
-// DDHMC related 
-////////////////////////////////////////////////////////////////////
-#include <Grid/qcd/action/fermion/DirichletFermionOperator.h>
-#include <Grid/qcd/action/fermion/SchurFactoredFermionOperator.h>
-
 NAMESPACE_CHECK(DWFutils);
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/FermionCore.h

@@ -25,7 +25,8 @@ Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
     See the full license in the file "LICENSE" in the top level distribution directory
     *************************************************************************************/
     /*  END LEGAL */
-#pragma once
+#ifndef  GRID_QCD_FERMION_CORE_H
+#define  GRID_QCD_FERMION_CORE_H
 
 #include <Grid/GridCore.h>
 #include <Grid/GridQCDcore.h>
@@ -44,3 +45,4 @@ NAMESPACE_CHECK(FermionOperator);
 #include <Grid/qcd/action/fermion/StaggeredKernels.h>        //used by all wilson type fermions
 NAMESPACE_CHECK(Kernels);
 
+#endif

Grid/qcd/action/fermion/FermionOperator.h

@@ -140,9 +140,6 @@ public:
   // Updates gauge field during HMC
   ///////////////////////////////////////////////
   virtual void ImportGauge(const GaugeField & _U)=0;
-  virtual DoubledGaugeField &GetDoubledGaugeField(void)  =0;
-  virtual DoubledGaugeField &GetDoubledGaugeFieldE(void)  =0;
-  virtual DoubledGaugeField &GetDoubledGaugeFieldO(void)  =0;
 
   //////////////////////////////////////////////////////////////////////
   // Conserved currents, either contract at sink or insert sequentially.
@@ -174,16 +171,6 @@ public:
       ///////////////////////////////////////////////
       virtual void Dminus(const FermionField &psi, FermionField &chi)    { chi=psi; }
       virtual void DminusDag(const FermionField &psi, FermionField &chi) { chi=psi; }
-
-      virtual void ImportFourDimPseudoFermion(const FermionField &input,FermionField &imported)
-      {
-	imported = input;
-      };
-      virtual void ExportFourDimPseudoFermion(const FermionField &solution,FermionField &exported)
-      {
-	exported=solution;
-      };
-
       virtual void ImportPhysicalFermionSource(const FermionField &input,FermionField &imported)
       {
 	imported = input;

Grid/qcd/action/fermion/GparityWilsonImpl.h

@@ -30,18 +30,6 @@ directory
 
 NAMESPACE_BEGIN(Grid);
 
-/*
-  Policy implementation for G-parity boundary conditions
-
-  Rather than treating the gauge field as a flavored field, the Grid implementation of G-parity treats the gauge field as a regular
-  field with complex conjugate boundary conditions. In order to ensure the second flavor interacts with the conjugate links and the first
-  with the regular links we overload the functionality of doubleStore, whose purpose is to store the gauge field and the barrel-shifted gauge field
-  to avoid communicating links when applying the Dirac operator, such that the double-stored field contains also a flavor index which maps to
-  either the link or the conjugate link. This flavored field is then used by multLink to apply the correct link to a spinor.
-
-  Here the first Nd-1 directions are treated as "spatial", and a twist value of 1 indicates G-parity BCs in that direction. 
-  mu=Nd-1 is assumed to be the time direction and a twist value of 1 indicates antiperiodic BCs
- */
 template <class S, class Representation = FundamentalRepresentation, class Options=CoeffReal>
 class GparityWilsonImpl : public ConjugateGaugeImpl<GaugeImplTypes<S, Representation::Dimension> > {
 public:
@@ -125,7 +113,7 @@ public:
     || ((distance== 1)&&(icoor[direction]==1))
     || ((distance==-1)&&(icoor[direction]==0));
 
-    permute_lane = permute_lane && SE->_around_the_world && St.parameters.twists[mmu] && mmu < Nd-1; //only if we are going around the world in a spatial direction
+    permute_lane = permute_lane && SE->_around_the_world && St.parameters.twists[mmu]; //only if we are going around the world
 
     //Apply the links
     int f_upper = permute_lane ? 1 : 0;
@@ -151,10 +139,10 @@ public:
     assert((distance == 1) || (distance == -1));  // nearest neighbour stencil hard code
     assert((sl == 1) || (sl == 2));
 
-    //If this site is an global boundary site, perform the G-parity flavor twist
-    if ( mmu < Nd-1 && SE->_around_the_world && St.parameters.twists[mmu] ) {
+    if ( SE->_around_the_world && St.parameters.twists[mmu] ) {
+
       if ( sl == 2 ) {
-	//Only do the twist for lanes on the edge of the physical node
+       
 	ExtractBuffer<sobj> vals(Nsimd);
 
 	extract(chi,vals);
@@ -209,19 +197,6 @@ public:
     reg = memory;
   }
 
-
-  //Poke 'poke_f0' onto flavor 0 and 'poke_f1' onto flavor 1 in direction mu of the doubled gauge field Uds
-  inline void pokeGparityDoubledGaugeField(DoubledGaugeField &Uds, const GaugeLinkField &poke_f0, const GaugeLinkField &poke_f1, const int mu){
-    autoView(poke_f0_v, poke_f0, CpuRead);
-    autoView(poke_f1_v, poke_f1, CpuRead);
-    autoView(Uds_v, Uds, CpuWrite);
-    thread_foreach(ss,poke_f0_v,{
-	Uds_v[ss](0)(mu) = poke_f0_v[ss]();
-	Uds_v[ss](1)(mu) = poke_f1_v[ss]();
-      });
-  }
-    
-
   inline void DoubleStore(GridBase *GaugeGrid,DoubledGaugeField &Uds,const GaugeField &Umu)
   {
     conformable(Uds.Grid(),GaugeGrid);
@@ -232,19 +207,14 @@ public:
     GaugeLinkField Uconj(GaugeGrid);
    
     Lattice<iScalar<vInteger> > coor(GaugeGrid);
-
-    //Here the first Nd-1 directions are treated as "spatial", and a twist value of 1 indicates G-parity BCs in that direction. 
-    //mu=Nd-1 is assumed to be the time direction and a twist value of 1 indicates antiperiodic BCs        
-    for(int mu=0;mu<Nd-1;mu++){
-
-      if( Params.twists[mu] ){
-	LatticeCoordinate(coor,mu);
-      }
+        
+    for(int mu=0;mu<Nd;mu++){
+          
+      LatticeCoordinate(coor,mu);
           
       U     = PeekIndex<LorentzIndex>(Umu,mu);
       Uconj = conjugate(U);
      
-      // Implement the isospin rotation sign on the boundary between f=1 and f=0
       // This phase could come from a simple bc 1,1,-1,1 ..
       int neglink = GaugeGrid->GlobalDimensions()[mu]-1;
       if ( Params.twists[mu] ) { 
@@ -259,7 +229,7 @@ public:
 	thread_foreach(ss,U_v,{
 	    Uds_v[ss](0)(mu) = U_v[ss]();
 	    Uds_v[ss](1)(mu) = Uconj_v[ss]();
-	});
+	  });
       }
           
       U     = adj(Cshift(U    ,mu,-1));      // correct except for spanning the boundary
@@ -290,38 +260,6 @@ public:
         });
       }
     }
-
-    { //periodic / antiperiodic temporal BCs
-      int mu = Nd-1;
-      int L   = GaugeGrid->GlobalDimensions()[mu];
-      int Lmu = L - 1;
-
-      LatticeCoordinate(coor, mu);
-
-      U = PeekIndex<LorentzIndex>(Umu, mu); //Get t-directed links
-      
-      GaugeLinkField *Upoke = &U;
-
-      if(Params.twists[mu]){ //antiperiodic
-	Utmp =  where(coor == Lmu, -U, U);
-	Upoke = &Utmp;
-      }
-    
-      Uconj = conjugate(*Upoke); //second flavor interacts with conjugate links      
-      pokeGparityDoubledGaugeField(Uds, *Upoke, Uconj, mu);
-
-      //Get the barrel-shifted field
-      Utmp = adj(Cshift(U, mu, -1)); //is a forward shift!
-      Upoke = &Utmp;
-
-      if(Params.twists[mu]){
-	U = where(coor == 0, -Utmp, Utmp);  //boundary phase
-	Upoke = &U;
-      }
-      
-      Uconj = conjugate(*Upoke);
-      pokeGparityDoubledGaugeField(Uds, *Upoke, Uconj, mu + 4);
-    }
   }
       
   inline void InsertForce4D(GaugeField &mat, FermionField &Btilde, FermionField &A, int mu) {
@@ -360,48 +298,28 @@ public:
   inline void extractLinkField(std::vector<GaugeLinkField> &mat, DoubledGaugeField &Uds){
     assert(0);
   }
- 
-  inline void InsertForce5D(GaugeField &mat, FermionField &Btilde, FermionField &Atilde, int mu) {
-    int Ls=Btilde.Grid()->_fdimensions[0];
-    
-    {
-      GridBase *GaugeGrid = mat.Grid();
-      Lattice<iScalar<vInteger> > coor(GaugeGrid);
-
-      if( Params.twists[mu] ){
-	LatticeCoordinate(coor,mu);
-      }
-
-      autoView( mat_v , mat, AcceleratorWrite);
-      autoView( Btilde_v , Btilde, AcceleratorRead);
-      autoView( Atilde_v , Atilde, AcceleratorRead);
-      accelerator_for(sss,mat.Grid()->oSites(), FermionField::vector_type::Nsimd(),{	  
-  	  int sU=sss;
-  	  typedef decltype(coalescedRead(mat_v[sU](mu)() )) ColorMatrixType;
-  	  ColorMatrixType sum;
-  	  zeroit(sum);
-  	  for(int s=0;s<Ls;s++){
-  	    int sF = s+Ls*sU;
-  	    for(int spn=0;spn<Ns;spn++){ //sum over spin
-	      //Flavor 0
-  	      auto bb = coalescedRead(Btilde_v[sF](0)(spn) ); //color vector
-  	      auto aa = coalescedRead(Atilde_v[sF](0)(spn) );
-  	      sum = sum + outerProduct(bb,aa);
-
-  	      //Flavor 1
-  	      bb = coalescedRead(Btilde_v[sF](1)(spn) );
-  	      aa = coalescedRead(Atilde_v[sF](1)(spn) );
-  	      sum = sum + conjugate(outerProduct(bb,aa));
-  	    }
-  	  }	    
-  	  coalescedWrite(mat_v[sU](mu)(), sum);
-  	});
-    }
-  }
-
-
   
+  inline void InsertForce5D(GaugeField &mat, FermionField &Btilde, FermionField &Atilde, int mu) {
 
+    int Ls = Btilde.Grid()->_fdimensions[0];
+        
+    GaugeLinkField tmp(mat.Grid());
+    tmp = Zero();
+    {
+      autoView( tmp_v , tmp, CpuWrite);
+      autoView( Atilde_v , Atilde, CpuRead);
+      autoView( Btilde_v , Btilde, CpuRead);
+      thread_for(ss,tmp.Grid()->oSites(),{
+	  for (int s = 0; s < Ls; s++) {
+	    int sF = s + Ls * ss;
+	    auto ttmp = traceIndex<SpinIndex>(outerProduct(Btilde_v[sF], Atilde_v[sF]));
+	    tmp_v[ss]() = tmp_v[ss]() + ttmp(0, 0) + conjugate(ttmp(1, 1));
+	  }
+	});
+    }
+    PokeIndex<LorentzIndex>(mat, tmp, mu);
+    return;
+  }
   
 };
 

Grid/qcd/action/fermion/ImprovedStaggeredFermion.h

@@ -141,11 +141,8 @@ public:
   void ImportGauge(const GaugeField &_Uthin, const GaugeField &_Ufat);
   void ImportGaugeSimple(const GaugeField &_UUU    ,const GaugeField &_U);
   void ImportGaugeSimple(const DoubledGaugeField &_UUU,const DoubledGaugeField &_U);
-  virtual DoubledGaugeField &GetDoubledGaugeField(void)  override { return Umu; };
-  virtual DoubledGaugeField &GetDoubledGaugeFieldE(void) override { return UmuEven; };
-  virtual DoubledGaugeField &GetDoubledGaugeFieldO(void) override { return UmuOdd; };
-  virtual DoubledGaugeField &GetU(void)   { return Umu ; } ;
-  virtual DoubledGaugeField &GetUUU(void) { return UUUmu; };
+  DoubledGaugeField &GetU(void)   { return Umu ; } ;
+  DoubledGaugeField &GetUUU(void) { return UUUmu; };
   void CopyGaugeCheckerboards(void);
 
   ///////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/ImprovedStaggeredFermion5D.h

@@ -160,20 +160,17 @@ public:
 			       RealD _c1=1.0, RealD _c2=1.0,RealD _u0=1.0,
 			     const ImplParams &p= ImplParams());
     
-  // DoubleStore gauge field in operator
-  void ImportGauge      (const GaugeField &_Uthin ) { assert(0); }
+    // DoubleStore gauge field in operator
+    void ImportGauge      (const GaugeField &_Uthin ) { assert(0); }
   void ImportGauge(const GaugeField &_Uthin,const GaugeField &_Ufat);
-  void ImportGaugeSimple(const GaugeField &_UUU,const GaugeField &_U);
-  void ImportGaugeSimple(const DoubledGaugeField &_UUU,const DoubledGaugeField &_U);
-  // Give a reference; can be used to do an assignment or copy back out after import
-  // if Carleton wants to cache them and not use the ImportSimple
-  virtual DoubledGaugeField &GetDoubledGaugeField(void)  override { return Umu; };
-  virtual DoubledGaugeField &GetDoubledGaugeFieldE(void) override { return UmuEven; };
-  virtual DoubledGaugeField &GetDoubledGaugeFieldO(void) override { return UmuOdd; };
-  DoubledGaugeField &GetU(void)   { return Umu ; } ;
-  DoubledGaugeField &GetUUU(void) { return UUUmu; };
-  void CopyGaugeCheckerboards(void);
-  
+    void ImportGaugeSimple(const GaugeField &_UUU,const GaugeField &_U);
+    void ImportGaugeSimple(const DoubledGaugeField &_UUU,const DoubledGaugeField &_U);
+    // Give a reference; can be used to do an assignment or copy back out after import
+    // if Carleton wants to cache them and not use the ImportSimple
+    DoubledGaugeField &GetU(void)   { return Umu ; } ;
+    DoubledGaugeField &GetUUU(void) { return UUUmu; };
+    void CopyGaugeCheckerboards(void);
+    
   ///////////////////////////////////////////////////////////////
   // Data members require to support the functionality
   ///////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/NaiveStaggeredFermion.h

@@ -135,9 +135,6 @@ public:
 
   // DoubleStore impl dependent
   void ImportGauge      (const GaugeField &_U );
-  DoubledGaugeField &GetDoubledGaugeField(void){ return Umu; };
-  DoubledGaugeField &GetDoubledGaugeFieldE(void){ return UmuEven; };
-  DoubledGaugeField &GetDoubledGaugeFieldO(void){ return UmuOdd; };
   DoubledGaugeField &GetU(void)   { return Umu ; } ;
   void CopyGaugeCheckerboards(void);
 

Grid/qcd/action/fermion/SchurFactoredFermionOperator.h

@@ -1,534 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/fermion/SchurFactoredFermionOperator.h
-
-    Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-#include <Grid/qcd/utils/MixedPrecisionOperatorFunction.h>
-#include <Grid/qcd/action/domains/Domains.h>
-
-NAMESPACE_BEGIN(Grid);
-
-  ////////////////////////////////////////////////////////
-  // Some explanation of class structure for domain decomposition:
-  //
-  // Need a dirichlet operator for two flavour determinant - acts on both Omega and OmegaBar.
-  //
-  // Possible gain if the global sums and CG are run independently?? Could measure this.
-  //
-  // Types of operations
-  //
-  // 1) assemble local det dOmega det dOmegaBar pseudofermion
-  //
-  // - DirichletFermionOperator - can either do a global solve, or independent/per cell coefficients.
-  //
-  // 2) assemble dOmegaInverse and dOmegaBarInverse in R
-  //
-  // - DirichletFermionOperator - can also be used to 
-  //                                       - need two or more cells per node. Options
-  //                                       - a) solve one cell at a time, no new code, CopyRegion and reduced /split Grids
-  //                                       - b) solve multiple cells in parallel. predicated dslash implementation
-  //
-  //                                       - b) has more parallelism, experience with block solver suggest might not be aalgorithmically inefficient
-  //                                         a) has more cache friendly and easier code.
-  //                                         b) is easy to implement in a "trial" or inefficient code with projection.
-  //
-  // 3)  Additional functionality for domain operations
-  //
-  // - SchurFactoredFermionOperator  - Need a DDHMC utility - whether used in two flavour or one flavour 
-  //
-  // - dBoundary - needs non-dirichlet operator
-  // - Contains one Dirichlet Op, and one non-Dirichlet op. Implements dBoundary etc...
-  // - The Dirichlet ops can be passed to dOmega(Bar) solvers etc...
-  //
-  ////////////////////////////////////////////////////////
-
-
-template<class ImplD,class ImplF>
-class SchurFactoredFermionOperator : public ImplD
-{
-  INHERIT_IMPL_TYPES(ImplD);
-  
-  typedef typename ImplF::FermionField FermionFieldF;
-  typedef typename ImplD::FermionField FermionFieldD;
-
-  typedef SchurDiagMooeeOperator<FermionOperator<ImplD>,FermionFieldD> LinearOperatorD;
-  typedef SchurDiagMooeeOperator<FermionOperator<ImplF>,FermionFieldF> LinearOperatorF;
-  typedef SchurDiagMooeeDagOperator<FermionOperator<ImplD>,FermionFieldD> LinearOperatorDagD;
-  typedef SchurDiagMooeeDagOperator<FermionOperator<ImplF>,FermionFieldF> LinearOperatorDagF;
-
-  typedef MixedPrecisionConjugateGradientOperatorFunction<FermionOperator<ImplD>,
-							  FermionOperator<ImplF>,
-							  LinearOperatorD,
-							  LinearOperatorF> MxPCG;
-
-  typedef MixedPrecisionConjugateGradientOperatorFunction<FermionOperator<ImplD>,
-							  FermionOperator<ImplF>,
-							  LinearOperatorDagD,
-							  LinearOperatorDagF> MxDagPCG;
-public:
-
-  GridBase *FermionGrid(void) { return PeriodicFermOpD.FermionGrid(); };
-  GridBase *GaugeGrid(void)   { return PeriodicFermOpD.GaugeGrid(); };
-  
-  FermionOperator<ImplD> & DirichletFermOpD;
-  FermionOperator<ImplF> & DirichletFermOpF;
-  FermionOperator<ImplD> & PeriodicFermOpD; 
-  FermionOperator<ImplF> & PeriodicFermOpF; 
-
-  LinearOperatorD DirichletLinOpD;
-  LinearOperatorF DirichletLinOpF;
-  LinearOperatorD PeriodicLinOpD;
-  LinearOperatorF PeriodicLinOpF;
-
-  LinearOperatorDagD DirichletLinOpDagD;
-  LinearOperatorDagF DirichletLinOpDagF;
-  LinearOperatorDagD PeriodicLinOpDagD;
-  LinearOperatorDagF PeriodicLinOpDagF;
-
-  // Can tinker with these in the pseudofermion for force vs. action solves
-  Integer maxinnerit;
-  Integer maxouterit;
-  RealD tol;
-  RealD tolinner;
-  
-  Coordinate Block;
-
-  DomainDecomposition Domains;
-
-  SchurFactoredFermionOperator(FermionOperator<ImplD>  & _PeriodicFermOpD,
-			       FermionOperator<ImplF>  & _PeriodicFermOpF,
-			       FermionOperator<ImplD>  & _DirichletFermOpD,
-			       FermionOperator<ImplF>  & _DirichletFermOpF,
-			       Coordinate &_Block)
-    : Block(_Block), Domains(Block),
-
-      PeriodicFermOpD(_PeriodicFermOpD),
-      PeriodicFermOpF(_PeriodicFermOpF),
-      DirichletFermOpD(_DirichletFermOpD),
-      DirichletFermOpF(_DirichletFermOpF),
-      DirichletLinOpD(DirichletFermOpD),
-      DirichletLinOpF(DirichletFermOpF),
-      PeriodicLinOpD(PeriodicFermOpD),
-      PeriodicLinOpF(PeriodicFermOpF),
-      DirichletLinOpDagD(DirichletFermOpD),
-      DirichletLinOpDagF(DirichletFermOpF),
-      PeriodicLinOpDagD(PeriodicFermOpD),
-      PeriodicLinOpDagF(PeriodicFermOpF)
-  {
-    tol=1.0e-10;
-    tolinner=1.0e-6;
-    maxinnerit=1000;
-    maxouterit=10;
-    assert(PeriodicFermOpD.FermionGrid() == DirichletFermOpD.FermionGrid());
-    assert(PeriodicFermOpF.FermionGrid() == DirichletFermOpF.FermionGrid());
-  };
-
-  enum Domain { Omega=0, OmegaBar=1 };
-
-  void ImportGauge(const GaugeField &Umu)
-  {
-    // Single precision will update in the mixed prec CG
-    PeriodicFermOpD.ImportGauge(Umu);
-    GaugeField dUmu(Umu.Grid());
-    dUmu=Umu;
-    //    DirchletBCs(dUmu);
-    DirichletFilter<GaugeField> Filter(Block);
-    Filter.applyFilter(dUmu);
-    DirichletFermOpD.ImportGauge(dUmu);
-  }
-
-/*
-  void ProjectBoundaryBothDomains (FermionField &f,int sgn)
-  {
-    assert((sgn==1)||(sgn==-1));
-    Real rsgn = sgn;
-
-    Gamma::Algebra Gmu [] = {
-      Gamma::Algebra::GammaX,
-      Gamma::Algebra::GammaY,
-      Gamma::Algebra::GammaZ,
-      Gamma::Algebra::GammaT
-    };
-
-    GridBase *grid = f.Grid();
-    LatticeInteger  coor(grid);
-    LatticeInteger  face(grid);
-    LatticeInteger  one(grid); one = 1;
-    LatticeInteger  zero(grid); zero = 0;
-    LatticeInteger nface(grid); nface=Zero();
-    
-    FermionField projected(grid); projected=Zero();
-    FermionField sp_proj  (grid);
-
-    int dims = grid->Nd();
-    int isDWF= (dims==Nd+1);
-    assert((dims==Nd)||(dims==Nd+1));
-    Coordinate Global=grid->GlobalDimensions();
-
-    for(int mu=0;mu<Nd;mu++){
-
-      if ( Block[mu] <= Global[mu+isDWF] ) {
-	// need to worry about DWF 5th dim first
-	LatticeCoordinate(coor,mu+isDWF); 
-      
-	face = where(mod(coor,Block[mu]) == Integer(0),one,zero );
-	nface = nface + face;
-
-	Gamma G(Gmu[mu]);
-	// Lower face receives (1-gamma)/2 in normal forward hopping term
-	sp_proj  = 0.5*(f-G*f*rsgn);
-	projected= where(face,sp_proj,projected);
-	//projected= where(face,f,projected);
-      
-	face = where(mod(coor,Block[mu]) == Integer(Block[mu]-1) ,one,zero );
-	nface = nface + face;
-
-	// Upper face receives (1+gamma)/2 in normal backward hopping term
-	sp_proj = 0.5*(f+G*f*rsgn);
-	projected= where(face,sp_proj,projected);
-	//projected= where(face,f,projected);
-      }
-      
-    }
-    // Initial Zero() where nface==0.
-    // Keep the spin projected faces where nface==1
-    // Full spinor where nface>=2
-    projected = where(nface>Integer(1),f,projected);
-    f=projected;
-  }
-*/
-  void ProjectBoundaryBothDomains (FermionField &f,int sgn)
-  {
-    assert((sgn==1)||(sgn==-1));
-    Real rsgn = sgn;
-
-    Gamma::Algebra Gmu [] = {
-      Gamma::Algebra::GammaX,
-      Gamma::Algebra::GammaY,
-      Gamma::Algebra::GammaZ,
-      Gamma::Algebra::GammaT
-    };
-
-    GridBase *grid = f.Grid();
-    LatticeInteger  coor(grid);
-    LatticeInteger  face(grid);
-    LatticeInteger  one(grid);   one = 1;
-    LatticeInteger  zero(grid); zero = 0;
-    LatticeInteger  omega(grid);
-    LatticeInteger  omegabar(grid);
-    LatticeInteger  tmp(grid);
-
-    omega=one;    Domains.ProjectDomain(omega,0);
-    omegabar=one; Domains.ProjectDomain(omegabar,1);
-    
-    LatticeInteger nface(grid); nface=Zero();
-    
-    FermionField projected(grid); projected=Zero();
-    FermionField sp_proj  (grid);
-
-    int dims = grid->Nd();
-    int isDWF= (dims==Nd+1);
-    assert((dims==Nd)||(dims==Nd+1));
-    Coordinate Global=grid->GlobalDimensions();
-
-    for(int mmu=0;mmu<Nd;mmu++){
-      Gamma G(Gmu[mmu]);
-
-      // need to worry about DWF 5th dim first
-      int mu = mmu+isDWF;
-      if ( Block[mmu] && (Block[mmu] <= Global[mu]) ) {
-
-	// Lower face receives (1-gamma)/2 in normal forward hopping term
- 	tmp = Cshift(omegabar,mu,-1);
-	tmp = tmp + omega;
-	face = where(tmp == Integer(2),one,zero );
-
- 	tmp = Cshift(omega,mu,-1);
-	tmp = tmp + omegabar;
-	face = where(tmp == Integer(2),one,face );
-
-	nface = nface + face;
-
-	sp_proj  = 0.5*(f-G*f*rsgn);
-	projected= where(face,sp_proj,projected);
-
-	// Upper face receives (1+gamma)/2 in normal backward hopping term
- 	tmp = Cshift(omegabar,mu,1);
-	tmp = tmp + omega;
-	face = where(tmp == Integer(2),one,zero );
-
- 	tmp = Cshift(omega,mu,1);
-	tmp = tmp + omegabar;
-	face = where(tmp == Integer(2),one,face );
-
-	nface = nface + face;
-
-	sp_proj = 0.5*(f+G*f*rsgn);
-	projected= where(face,sp_proj,projected);
-      }
-      
-    }
-    // Initial Zero() where nface==0.
-    // Keep the spin projected faces where nface==1
-    // Full spinor where nface>=2
-    projected = where(nface>Integer(1),f,projected);
-    f=projected;
-  }
-
-  void ProjectDomain(FermionField &f,int domain)
-  {
-/*
-    GridBase *grid = f.Grid();
-    int dims = grid->Nd();
-    int isDWF= (dims==Nd+1);
-    assert((dims==Nd)||(dims==Nd+1));
-
-    FermionField zz(grid); zz=Zero();
-    LatticeInteger coor(grid);
-    LatticeInteger domaincb(grid); domaincb=Zero();
-    for(int d=0;d<Nd;d++){
-      LatticeCoordinate(coor,d+isDWF);
-      domaincb = domaincb + div(coor,Block[d]);
-    }
-    f = where(mod(domaincb,2)==Integer(domain),f,zz);
-*/
-    Domains.ProjectDomain(f,domain);
-
-  };
-  void ProjectOmegaBar   (FermionField &f) {ProjectDomain(f,OmegaBar);}
-  void ProjectOmega      (FermionField &f) {ProjectDomain(f,Omega);}
-  // See my notes(!).
-  // Notation: Following Luscher, we introduce projectors $\hPdb$ with both spinor and space structure
-  // projecting all spinor elements in $\Omega$ connected by $\Ddb$ to $\bar{\Omega}$,
-  void ProjectBoundaryBar(FermionField &f)
-  {
-    ProjectBoundaryBothDomains(f,1);
-    ProjectOmega(f);
-  }
-  // and $\hPd$ projecting all spinor elements in $\bar{\Omega}$ connected by $\Dd$ to $\Omega$.
-  void ProjectBoundary   (FermionField &f)
-  {
-    ProjectBoundaryBothDomains(f,1);
-    ProjectOmegaBar(f);
-    //    DumpSliceNorm("ProjectBoundary",f,f.Grid()->Nd()-1);
-  };
-
-  void dBoundary    (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmegaBar(tmp);
-    PeriodicFermOpD.M(tmp,out);
-    ProjectOmega(out);
-  };
-  void dBoundaryDag (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmega(tmp);
-    PeriodicFermOpD.Mdag(tmp,out);
-    ProjectOmegaBar(out);
-  };
-  void dBoundaryBar (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmega(tmp);
-    PeriodicFermOpD.M(tmp,out);
-    ProjectOmegaBar(out);
-  };
-  void dBoundaryBarDag (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmegaBar(tmp);
-    PeriodicFermOpD.Mdag(tmp,out);
-    ProjectOmega(out);
-  };
-  void dOmega       (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmega(tmp);
-    DirichletFermOpD.M(tmp,out);
-    ProjectOmega(out);
-  };
-  void dOmegaBar    (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmegaBar(tmp);
-    DirichletFermOpD.M(tmp,out);
-    ProjectOmegaBar(out);
-  };
-  void dOmegaDag       (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmega(tmp);
-    DirichletFermOpD.Mdag(tmp,out);
-    ProjectOmega(out);
-  };
-  void dOmegaBarDag    (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmegaBar(tmp);
-    DirichletFermOpD.Mdag(tmp,out);
-    ProjectOmegaBar(out);
-  };
-  void dOmegaInv   (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmega(tmp);
-    dOmegaInvAndOmegaBarInv(tmp,out); // Inefficient warning
-    ProjectOmega(out);
-  };
-  void dOmegaBarInv(FermionField &in,FermionField &out)
-  {    
-    FermionField tmp(in);
-    ProjectOmegaBar(tmp);
-    dOmegaInvAndOmegaBarInv(tmp,out);
-    ProjectOmegaBar(out);
-  };
-  void dOmegaDagInv   (FermionField &in,FermionField &out)
-  {
-    FermionField tmp(in);
-    ProjectOmega(tmp);
-    dOmegaDagInvAndOmegaBarDagInv(tmp,out);
-    ProjectOmega(out);
-  };
-  void dOmegaBarDagInv(FermionField &in,FermionField &out)
-  {    
-    FermionField tmp(in);
-    ProjectOmegaBar(tmp);
-    dOmegaDagInvAndOmegaBarDagInv(tmp,out);
-    ProjectOmegaBar(out);
-  };
-  void dOmegaInvAndOmegaBarInv(FermionField &in,FermionField &out)
-  {
-    MxPCG OmegaSolver(tol,
-		      tolinner,
-		      maxinnerit,
-		      maxouterit,
-		      DirichletFermOpF.FermionRedBlackGrid(),
-		      DirichletFermOpF,
-		      DirichletFermOpD,
-		      DirichletLinOpF,
-		      DirichletLinOpD);
-    SchurRedBlackDiagMooeeSolve<FermionField> PrecSolve(OmegaSolver);
-    PrecSolve(DirichletFermOpD,in,out);
-  };
-  void dOmegaDagInvAndOmegaBarDagInv(FermionField &in,FermionField &out)
-  {
-    MxDagPCG OmegaDagSolver(tol,
-			    tolinner,
-			    maxinnerit,
-			    maxouterit,
-			    DirichletFermOpF.FermionRedBlackGrid(),
-			    DirichletFermOpF,
-			    DirichletFermOpD,
-			    DirichletLinOpDagF,
-			    DirichletLinOpDagD);
-    SchurRedBlackDiagMooeeDagSolve<FermionField> PrecSolve(OmegaDagSolver);
-    PrecSolve(DirichletFermOpD,in,out);
-  };
-
-  // Rdag = Pdbar - DdbarDag DomegabarDagInv  DdDag DomegaDagInv Pdbar 
-  void RDag(FermionField &in,FermionField &out)
-  {
-    FermionField tmp1(PeriodicFermOpD.FermionGrid());
-    FermionField tmp2(PeriodicFermOpD.FermionGrid());
-    out = in;
-    ProjectBoundaryBar(out);
-    dOmegaDagInv(out,tmp1);   
-    dBoundaryDag(tmp1,tmp2);   
-    dOmegaBarDagInv(tmp2,tmp1);
-    dBoundaryBarDag(tmp1,tmp2); 
-    out = out - tmp2;
-  };
-
-  // R = Pdbar - Pdbar DomegaInv Dd DomegabarInv Ddbar
-  void R(FermionField &in,FermionField &out)
-  {
-    FermionField tmp1(PeriodicFermOpD.FermionGrid());
-    FermionField tmp2(PeriodicFermOpD.FermionGrid());
-    out = in;
-    ProjectBoundaryBar(out);
-    dBoundaryBar(out,tmp1); 
-    dOmegaBarInv(tmp1,tmp2);
-    dBoundary(tmp2,tmp1);   
-    dOmegaInv(tmp1,tmp2);   
-    out = in - tmp2 ;       
-    ProjectBoundaryBar(out);
-    //    DumpSliceNorm("R",out,out.Grid()->Nd()-1);
-  };
-  
-  // R = Pdbar - Pdbar Dinv Ddbar 
-  void RInv(FermionField &in,FermionField &out)
-  {
-    FermionField tmp1(PeriodicFermOpD.FermionGrid());
-    dBoundaryBar(in,out);
-    Dinverse(out,tmp1);  
-    out =in -tmp1; 
-    ProjectBoundaryBar(out);
-  };
-  // R = Pdbar - DdbarDag DinvDag Pdbar 
-  void RDagInv(FermionField &in,FermionField &out)
-  {
-    FermionField tmp(PeriodicFermOpD.FermionGrid());
-    FermionField Pin(PeriodicFermOpD.FermionGrid());
-    Pin = in; ProjectBoundaryBar(Pin);
-    DinverseDag(Pin,out);  
-    dBoundaryBarDag(out,tmp);
-    out =Pin -tmp; 
-  };
-  // Non-dirichlet inverter using red-black preconditioning
-  void Dinverse(FermionField &in,FermionField &out)
-  {
-    MxPCG DSolver(tol,
-		  tolinner,
-		  maxinnerit,
-		  maxouterit,
-		  PeriodicFermOpF.FermionRedBlackGrid(),
-		  PeriodicFermOpF,
-		  PeriodicFermOpD,
-		  PeriodicLinOpF,
-		  PeriodicLinOpD);
-    SchurRedBlackDiagMooeeSolve<FermionField> Solve(DSolver);
-    Solve(PeriodicFermOpD,in,out);
-  }
-  void DinverseDag(FermionField &in,FermionField &out)
-  {
-    MxDagPCG DdagSolver(tol,
-			tolinner,
-			maxinnerit,
-			maxouterit,
-			PeriodicFermOpF.FermionRedBlackGrid(),
-			PeriodicFermOpF,
-			PeriodicFermOpD,
-			PeriodicLinOpDagF,
-			PeriodicLinOpDagD);
-    SchurRedBlackDiagMooeeDagSolve<FermionField> Solve(DdagSolver);
-    Solve(PeriodicFermOpD,in,out);
-  }
-};
-
-NAMESPACE_END(Grid);
-

Grid/qcd/action/fermion/WilsonCompressor.h

@@ -303,11 +303,9 @@ public:
 		int npoints,
 		int checkerboard,
 		const std::vector<int> &directions,
-		const std::vector<int> &distances,
-		bool locally_periodic,
-		Parameters p)  
-    : CartesianStencil<vobj,cobj,Parameters> (grid,npoints,checkerboard,directions,distances,locally_periodic,p)
-  {
+		const std::vector<int> &distances,Parameters p)  
+    : CartesianStencil<vobj,cobj,Parameters> (grid,npoints,checkerboard,directions,distances,p) 
+  { 
     ZeroCountersi();
     surface_list.resize(0);
     this->same_node.resize(npoints);

Grid/qcd/action/fermion/WilsonFermion.h

@@ -146,11 +146,8 @@ public:
   void DhopInternalSerial(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
                     const FermionField &in, FermionField &out, int dag);
 
-  void DhopInternalDirichletComms(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
-				  const FermionField &in, FermionField &out, int dag);
-  
   void DhopInternalOverlappedComms(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
-				   const FermionField &in, FermionField &out, int dag);
+                    const FermionField &in, FermionField &out, int dag);
 
   // Constructor
   WilsonFermion(GaugeField &_Umu, GridCartesian &Fgrid,
@@ -160,10 +157,7 @@ public:
 
   // DoubleStore impl dependent
   void ImportGauge(const GaugeField &_Umu);
-  DoubledGaugeField &GetDoubledGaugeField(void){ return Umu; };
-  DoubledGaugeField &GetDoubledGaugeFieldE(void){ return UmuEven; };
-  DoubledGaugeField &GetDoubledGaugeFieldO(void){ return UmuOdd; };
-  
+
   ///////////////////////////////////////////////////////////////
   // Data members require to support the functionality
   ///////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/WilsonFermion5D.h

@@ -165,14 +165,7 @@ public:
 			       const FermionField &in, 
 			       FermionField &out,
 			       int dag);
-
-  void DhopInternalDirichletComms(StencilImpl & st,
-				  LebesgueOrder &lo,
-				  DoubledGaugeField &U,
-				  const FermionField &in, 
-				  FermionField &out,
-				  int dag);
-  
+    
   // Constructors
   WilsonFermion5D(GaugeField &_Umu,
 		  GridCartesian         &FiveDimGrid,
@@ -181,11 +174,19 @@ public:
 		  GridRedBlackCartesian &FourDimRedBlackGrid,
 		  double _M5,const ImplParams &p= ImplParams());
     
+  // Constructors
+  /*
+    WilsonFermion5D(int simd, 
+    GaugeField &_Umu,
+    GridCartesian         &FiveDimGrid,
+    GridRedBlackCartesian &FiveDimRedBlackGrid,
+    GridCartesian         &FourDimGrid,
+    double _M5,const ImplParams &p= ImplParams());
+  */
+    
   // DoubleStore
   void ImportGauge(const GaugeField &_Umu);
-  DoubledGaugeField &GetDoubledGaugeField(void){ return Umu; };
-  DoubledGaugeField &GetDoubledGaugeFieldE(void){ return UmuEven; };
-  DoubledGaugeField &GetDoubledGaugeFieldO(void){ return UmuOdd; };
+    
   ///////////////////////////////////////////////////////////////
   // Data members require to support the functionality
   ///////////////////////////////////////////////////////////////

Grid/qcd/action/fermion/WilsonKernels.h

@@ -39,7 +39,7 @@ NAMESPACE_BEGIN(Grid);
 class WilsonKernelsStatic { 
 public:
   enum { OptGeneric, OptHandUnroll, OptInlineAsm };
-  enum { CommsAndCompute, CommsThenCompute, CommsDirichlet };
+  enum { CommsAndCompute, CommsThenCompute };
   static int Opt;  
   static int Comms;
 };

Grid/qcd/action/fermion/implementation/CayleyFermion5DImplementation.h

@@ -112,6 +112,7 @@ void CayleyFermion5D<Impl>::ImportUnphysicalFermion(const FermionField &input4d,
   axpby_ssp_pminus(tmp, 0., tmp, 1., tmp, Ls-1, Ls-1);
   imported5d=tmp;
 }
+
 template<class Impl>  
 void CayleyFermion5D<Impl>::ImportPhysicalFermionSource(const FermionField &input4d,FermionField &imported5d)
 {
@@ -126,37 +127,6 @@ void CayleyFermion5D<Impl>::ImportPhysicalFermionSource(const FermionField &inpu
   axpby_ssp_pminus(tmp, 0., tmp, 1., tmp, Ls-1, Ls-1);
   Dminus(tmp,imported5d);
 }
-////////////////////////////////////////////////////
-// Added for fourD pseudofermion det estimation
-////////////////////////////////////////////////////
-template<class Impl>  
-void CayleyFermion5D<Impl>::ImportFourDimPseudoFermion(const FermionField &input4d,FermionField &imported5d)
-{
-  int Ls = this->Ls;
-  FermionField tmp(this->FermionGrid());
-  conformable(imported5d.Grid(),this->FermionGrid());
-  conformable(input4d.Grid()   ,this->GaugeGrid());
-  tmp = Zero();
-  InsertSlice(input4d, tmp, 0   , 0);
-  InsertSlice(input4d, tmp, Ls-1, 0);
-  axpby_ssp_pminus(tmp, 0., tmp, 1., tmp, 0, 0);
-  axpby_ssp_pplus (tmp, 0., tmp, 1., tmp, Ls-1, Ls-1);
-  imported5d=tmp;
-}
-template<class Impl>  
-void CayleyFermion5D<Impl>::ExportFourDimPseudoFermion(const FermionField &solution5d,FermionField &exported4d)
-{
-  int Ls = this->Ls;
-  FermionField tmp(this->FermionGrid());
-  tmp = solution5d;
-  conformable(solution5d.Grid(),this->FermionGrid());
-  conformable(exported4d.Grid(),this->GaugeGrid());
-  axpby_ssp_pminus(tmp, 0., solution5d, 1., solution5d, 0, 0);
-  axpby_ssp_pplus (tmp, 1., tmp       , 1., solution5d, 0, Ls-1);
-  ExtractSlice(exported4d, tmp, 0, 0);
-}
-
-// Dminus
 template<class Impl>  
 void CayleyFermion5D<Impl>::Dminus(const FermionField &psi, FermionField &chi)
 {
@@ -858,6 +828,7 @@ void CayleyFermion5D<Impl>::SeqConservedCurrent(PropagatorField &q_in,
 
 #if (!defined(GRID_HIP))
   int tshift = (mu == Nd-1) ? 1 : 0;
+  unsigned int LLt    = GridDefaultLatt()[Tp];
   ////////////////////////////////////////////////
   // GENERAL CAYLEY CASE
   ////////////////////////////////////////////////
@@ -910,7 +881,7 @@ void CayleyFermion5D<Impl>::SeqConservedCurrent(PropagatorField &q_in,
   }
 
   std::vector<RealD> G_s(Ls,1.0);
-  RealD sign = 1; // sign flip for vector/tadpole
+  RealD sign = 1.0; // sign flip for vector/tadpole
   if ( curr_type == Current::Axial ) {
     for(int s=0;s<Ls/2;s++){
       G_s[s] = -1.0;
@@ -920,7 +891,7 @@ void CayleyFermion5D<Impl>::SeqConservedCurrent(PropagatorField &q_in,
     auto b=this->_b;
     auto c=this->_c;
     if ( b == 1 && c == 0 ) {
-      sign = -1;    
+      sign = -1.0;    
     }
     else {
       std::cerr << "Error: Tadpole implementation currently unavailable for non-Shamir actions." << std::endl;
@@ -964,7 +935,13 @@ void CayleyFermion5D<Impl>::SeqConservedCurrent(PropagatorField &q_in,
     tmp    = Cshift(tmp,mu,-1);
     Impl::multLinkField(Utmp,this->Umu,tmp,mu+Nd); // Adjoint link
     tmp = -G_s[s]*( Utmp + gmu*Utmp );
-    tmp    = where((lcoor>=tmin+tshift),tmp,zz); // Mask the time 
+    // Mask the time
+    if (tmax == LLt - 1 && tshift == 1){ // quick fix to include timeslice 0 if tmax + tshift is over the last timeslice
+      unsigned int t0 = 0;
+      tmp    = where(((lcoor==t0) || (lcoor>=tmin+tshift)),tmp,zz);
+    } else {
+      tmp    = where((lcoor>=tmin+tshift),tmp,zz);
+    }
     L_Q   += where((lcoor<=tmax+tshift),tmp,zz); // Position of current complicated
 
     InsertSlice(L_Q, q_out, s , 0);

Grid/qcd/action/fermion/implementation/WilsonFermion5DImplementation.h

@@ -51,9 +51,9 @@ WilsonFermion5D<Impl>::WilsonFermion5D(GaugeField &_Umu,
   _FiveDimRedBlackGrid(&FiveDimRedBlackGrid),
   _FourDimGrid        (&FourDimGrid),
   _FourDimRedBlackGrid(&FourDimRedBlackGrid),
-  Stencil    (_FiveDimGrid,npoint,Even,directions,displacements,p.locally_periodic,p),
-  StencilEven(_FiveDimRedBlackGrid,npoint,Even,directions,displacements,p.locally_periodic,p), // source is Even
-  StencilOdd (_FiveDimRedBlackGrid,npoint,Odd ,directions,displacements,p.locally_periodic,p), // source is Odd
+  Stencil    (_FiveDimGrid,npoint,Even,directions,displacements,p),
+  StencilEven(_FiveDimRedBlackGrid,npoint,Even,directions,displacements,p), // source is Even
+  StencilOdd (_FiveDimRedBlackGrid,npoint,Odd ,directions,displacements,p), // source is Odd
   M5(_M5),
   Umu(_FourDimGrid),
   UmuEven(_FourDimRedBlackGrid),
@@ -361,21 +361,10 @@ void WilsonFermion5D<Impl>::DhopInternal(StencilImpl & st, LebesgueOrder &lo,
                                          const FermionField &in, FermionField &out,int dag)
 {
   DhopTotalTime-=usecond();
-
-  assert(  (WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute)
-	 ||(WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsThenCompute)
-         ||(WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsDirichlet) );
-
-  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute ) {
+  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute )
     DhopInternalOverlappedComms(st,lo,U,in,out,dag);
-  }
-  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsThenCompute ) {
+  else 
     DhopInternalSerialComms(st,lo,U,in,out,dag);
-  }
-  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsDirichlet ) {
-    DhopInternalDirichletComms(st,lo,U,in,out,dag);
-  }
-  
   DhopTotalTime+=usecond();
 }
 
@@ -442,30 +431,6 @@ void WilsonFermion5D<Impl>::DhopInternalOverlappedComms(StencilImpl & st, Lebesg
   DhopComputeTime2+=usecond();
 }
 
-template<class Impl>
-void WilsonFermion5D<Impl>::DhopInternalDirichletComms(StencilImpl & st, LebesgueOrder &lo,
-						       DoubledGaugeField & U,
-						       const FermionField &in, FermionField &out,int dag)
-{
-  Compressor compressor(dag);
-
-  int LLs = in.Grid()->_rdimensions[0];
-  int len =  U.Grid()->oSites();
-      
-  /////////////////////////////
-  // do the compute interior
-  /////////////////////////////
-  int Opt = WilsonKernelsStatic::Opt; // Why pass this. Kernels should know
-  DhopComputeTime-=usecond();
-  if (dag == DaggerYes) {
-    Kernels::DhopDagKernel(Opt,st,U,st.CommBuf(),LLs,U.oSites(),in,out,1,0);
-  } else {
-    Kernels::DhopKernel   (Opt,st,U,st.CommBuf(),LLs,U.oSites(),in,out,1,0);
-  }
-  accelerator_barrier();
-  DhopComputeTime+=usecond();
-}
-
 
 template<class Impl>
 void WilsonFermion5D<Impl>::DhopInternalSerialComms(StencilImpl & st, LebesgueOrder &lo,

Grid/qcd/action/fermion/implementation/WilsonFermionImplementation.h

@@ -47,9 +47,9 @@ WilsonFermion<Impl>::WilsonFermion(GaugeField &_Umu, GridCartesian &Fgrid,
     Kernels(p),
     _grid(&Fgrid),
     _cbgrid(&Hgrid),
-    Stencil(&Fgrid, npoint, Even, directions, displacements,p.locally_periodic,p),
-    StencilEven(&Hgrid, npoint, Even, directions,displacements,p.locally_periodic,p),  // source is Even
-    StencilOdd(&Hgrid, npoint, Odd, directions,displacements,p.locally_periodic,p),  // source is Odd
+    Stencil(&Fgrid, npoint, Even, directions, displacements,p),
+    StencilEven(&Hgrid, npoint, Even, directions,displacements,p),  // source is Even
+    StencilOdd(&Hgrid, npoint, Odd, directions,displacements,p),  // source is Odd
     mass(_mass),
     Lebesgue(_grid),
     LebesgueEvenOdd(_cbgrid),
@@ -488,21 +488,12 @@ void WilsonFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
                                        FermionField &out, int dag)
 {
   DhopTotalTime-=usecond();
-
-  assert(  (WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute)
-	 ||(WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsThenCompute)
-         ||(WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsDirichlet) );
-
-
-  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute ) {
+#ifdef GRID_OMP
+  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute )
     DhopInternalOverlappedComms(st,lo,U,in,out,dag);
-  }
-  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsThenCompute ) {
+  else
+#endif
     DhopInternalSerial(st,lo,U,in,out,dag);
-  }
-  if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsDirichlet ) {
-    DhopInternalDirichletComms(st,lo,U,in,out,dag);
-  }
   DhopTotalTime+=usecond();
 }
 
@@ -571,29 +562,6 @@ void WilsonFermion<Impl>::DhopInternalOverlappedComms(StencilImpl &st, LebesgueO
   DhopComputeTime2+=usecond();
 };
 
-template <class Impl>
-void WilsonFermion<Impl>::DhopInternalDirichletComms(StencilImpl &st, LebesgueOrder &lo,
-						     DoubledGaugeField &U,
-						     const FermionField &in,
-						     FermionField &out, int dag)
-{
-  assert((dag == DaggerNo) || (dag == DaggerYes));
-
-  Compressor compressor(dag);
-  int len =  U.Grid()->oSites();
-
-  /////////////////////////////
-  // do the compute interior
-  /////////////////////////////
-  int Opt = WilsonKernelsStatic::Opt;
-  DhopComputeTime-=usecond();
-  if (dag == DaggerYes) {
-    Kernels::DhopDagKernel(Opt,st,U,st.CommBuf(),1,U.oSites(),in,out,1,0);
-  } else {
-    Kernels::DhopKernel(Opt,st,U,st.CommBuf(),1,U.oSites(),in,out,1,0);
-  }
-  DhopComputeTime+=usecond();
-};
 
 template <class Impl>
 void WilsonFermion<Impl>::DhopInternalSerial(StencilImpl &st, LebesgueOrder &lo,

Grid/qcd/action/fermion/implementation/WilsonKernelsHandImplementation.h

@@ -77,23 +77,23 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
 #define REGISTER
 
 #ifdef GRID_SIMT
-#define LOAD_CHIMU(ptype)		\
+#define LOAD_CHIMU(Ptype)		\
   {const SiteSpinor & ref (in[offset]);	\
-    Chimu_00=coalescedReadPermute<ptype>(ref()(0)(0),perm,lane);	\
-    Chimu_01=coalescedReadPermute<ptype>(ref()(0)(1),perm,lane);		\
-    Chimu_02=coalescedReadPermute<ptype>(ref()(0)(2),perm,lane);		\
-    Chimu_10=coalescedReadPermute<ptype>(ref()(1)(0),perm,lane);		\
-    Chimu_11=coalescedReadPermute<ptype>(ref()(1)(1),perm,lane);		\
-    Chimu_12=coalescedReadPermute<ptype>(ref()(1)(2),perm,lane);		\
-    Chimu_20=coalescedReadPermute<ptype>(ref()(2)(0),perm,lane);		\
-    Chimu_21=coalescedReadPermute<ptype>(ref()(2)(1),perm,lane);		\
-    Chimu_22=coalescedReadPermute<ptype>(ref()(2)(2),perm,lane);		\
-    Chimu_30=coalescedReadPermute<ptype>(ref()(3)(0),perm,lane);		\
-    Chimu_31=coalescedReadPermute<ptype>(ref()(3)(1),perm,lane);		\
-    Chimu_32=coalescedReadPermute<ptype>(ref()(3)(2),perm,lane);	}
+    Chimu_00=coalescedReadPermute<Ptype>(ref()(0)(0),perm,lane);	\
+    Chimu_01=coalescedReadPermute<Ptype>(ref()(0)(1),perm,lane);		\
+    Chimu_02=coalescedReadPermute<Ptype>(ref()(0)(2),perm,lane);		\
+    Chimu_10=coalescedReadPermute<Ptype>(ref()(1)(0),perm,lane);		\
+    Chimu_11=coalescedReadPermute<Ptype>(ref()(1)(1),perm,lane);		\
+    Chimu_12=coalescedReadPermute<Ptype>(ref()(1)(2),perm,lane);		\
+    Chimu_20=coalescedReadPermute<Ptype>(ref()(2)(0),perm,lane);		\
+    Chimu_21=coalescedReadPermute<Ptype>(ref()(2)(1),perm,lane);		\
+    Chimu_22=coalescedReadPermute<Ptype>(ref()(2)(2),perm,lane);		\
+    Chimu_30=coalescedReadPermute<Ptype>(ref()(3)(0),perm,lane);		\
+    Chimu_31=coalescedReadPermute<Ptype>(ref()(3)(1),perm,lane);		\
+    Chimu_32=coalescedReadPermute<Ptype>(ref()(3)(2),perm,lane);	}
 #define PERMUTE_DIR(dir) ;
 #else
-#define LOAD_CHIMU(ptype)		\
+#define LOAD_CHIMU(Ptype)		\
   {const SiteSpinor & ref (in[offset]);	\
     Chimu_00=ref()(0)(0);\
     Chimu_01=ref()(0)(1);\
@@ -109,12 +109,12 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
     Chimu_32=ref()(3)(2);}
 
 #define PERMUTE_DIR(dir)			\
-  permute##dir(Chi_00,Chi_00);	\
-      permute##dir(Chi_01,Chi_01);\
-      permute##dir(Chi_02,Chi_02);\
-      permute##dir(Chi_10,Chi_10);	\
-      permute##dir(Chi_11,Chi_11);\
-      permute##dir(Chi_12,Chi_12);
+  permute##dir(Chi_00,Chi_00);			\
+  permute##dir(Chi_01,Chi_01);			\
+  permute##dir(Chi_02,Chi_02);			\
+  permute##dir(Chi_10,Chi_10);			\
+  permute##dir(Chi_11,Chi_11);			\
+  permute##dir(Chi_12,Chi_12);
 
 #endif
 
@@ -371,88 +371,91 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
   result_32-= UChi_12;
 
 #define HAND_STENCIL_LEGB(PROJ,PERM,DIR,RECON)	\
-  SE=st.GetEntry(ptype,DIR,ss);			\
-  offset = SE->_offset;				\
-  local  = SE->_is_local;			\
-  perm   = SE->_permute;			\
-  if ( local ) {				\
-    LOAD_CHIMU(PERM);				\
-    PROJ;					\
-    if ( perm) {				\
-      PERMUTE_DIR(PERM);			\
-    }						\
-  } else {					\
-    LOAD_CHI;					\
-  }						\
-  acceleratorSynchronise();			\
-  MULT_2SPIN(DIR);				\
-  RECON;					
+  {int ptype;					\
+   SE=st.GetEntry(ptype,DIR,ss);		\
+   auto offset = SE->_offset;			\
+   auto local  = SE->_is_local;			\
+   auto perm   = SE->_permute;			\
+   if ( local ) {				\
+     LOAD_CHIMU(PERM);				\
+     PROJ;					\
+     if ( perm) {				\
+       PERMUTE_DIR(PERM);			\
+     }						\
+   } else {					\
+     LOAD_CHI;					\
+   }						\
+   acceleratorSynchronise();			\
+   MULT_2SPIN(DIR);				\
+   RECON;					}
 
-#define HAND_STENCIL_LEG(PROJ,PERM,DIR,RECON)	\
-  SE=&st_p[DIR+8*ss];				\
-  ptype=st_perm[DIR];				\
-  offset = SE->_offset;				\
-  local  = SE->_is_local;			\
-  perm   = SE->_permute;			\
-  if ( local ) {				\
-    LOAD_CHIMU(PERM);				\
-    PROJ;					\
-    if ( perm) {				\
-      PERMUTE_DIR(PERM);			\
-    }						\
-  } else {					\
-    LOAD_CHI;					\
-  }						\
-  acceleratorSynchronise();			\
-  MULT_2SPIN(DIR);				\
-  RECON;					
+#define HAND_STENCIL_LEG(PROJ,PERM,DIR,RECON)		\
+  { SE=&st_p[DIR+8*ss];						\
+  auto ptype=st_perm[DIR];					\
+  auto offset = SE->_offset;					\
+  auto local  = SE->_is_local;					\
+  auto perm   = SE->_permute;					\
+  if ( local ) {						\
+    LOAD_CHIMU(PERM);						\
+    PROJ;							\
+    if ( perm) {						\
+      PERMUTE_DIR(PERM);					\
+    }								\
+  } else {							\
+    LOAD_CHI;							\
+  }								\
+  acceleratorSynchronise();					\
+  MULT_2SPIN(DIR);						\
+  RECON;					}
 
 #define HAND_STENCIL_LEGA(PROJ,PERM,DIR,RECON)				\
-  SE=&st_p[DIR+8*ss];							\
-  ptype=st_perm[DIR];							\
- /*SE=st.GetEntry(ptype,DIR,ss);*/					\
-  offset = SE->_offset;				\
-  perm   = SE->_permute;			\
-  LOAD_CHIMU(PERM);				\
-  PROJ;						\
-  MULT_2SPIN(DIR);				\
-  RECON;					
+  { SE=&st_p[DIR+8*ss];							\
+    auto ptype=st_perm[DIR];						\
+    /*SE=st.GetEntry(ptype,DIR,ss);*/					\
+    auto offset = SE->_offset;						\
+    auto perm   = SE->_permute;						\
+    LOAD_CHIMU(PERM);							\
+    PROJ;								\
+    MULT_2SPIN(DIR);							\
+    RECON;					}
 
 #define HAND_STENCIL_LEG_INT(PROJ,PERM,DIR,RECON)	\
-  SE=st.GetEntry(ptype,DIR,ss);			\
-  offset = SE->_offset;				\
-  local  = SE->_is_local;			\
-  perm   = SE->_permute;			\
-  if ( local ) {				\
-    LOAD_CHIMU(PERM);				\
-    PROJ;					\
-    if ( perm) {				\
-      PERMUTE_DIR(PERM);			\
-    }						\
-  } else if ( st.same_node[DIR] ) {		\
-    LOAD_CHI;					\
-  }						\
-  acceleratorSynchronise();			\
-  if (local || st.same_node[DIR] ) {		\
-    MULT_2SPIN(DIR);				\
-    RECON;					\
-  }						\
-  acceleratorSynchronise();			
+  { int ptype;						\
+  SE=st.GetEntry(ptype,DIR,ss);				\
+  auto offset = SE->_offset;					\
+  auto local  = SE->_is_local;					\
+  auto perm   = SE->_permute;					\
+  if ( local ) {						\
+    LOAD_CHIMU(PERM);						\
+    PROJ;							\
+    if ( perm) {						\
+      PERMUTE_DIR(PERM);					\
+    }								\
+  } else if ( st.same_node[DIR] ) {				\
+    LOAD_CHI;							\
+  }								\
+  acceleratorSynchronise();					\
+  if (local || st.same_node[DIR] ) {				\
+    MULT_2SPIN(DIR);						\
+    RECON;							\
+  }								\
+  acceleratorSynchronise();			}
 
 #define HAND_STENCIL_LEG_EXT(PROJ,PERM,DIR,RECON)	\
-  SE=st.GetEntry(ptype,DIR,ss);			\
-  offset = SE->_offset;				\
-  if((!SE->_is_local)&&(!st.same_node[DIR]) ) {	\
-    LOAD_CHI;					\
-    MULT_2SPIN(DIR);				\
-    RECON;					\
-    nmu++;					\
-  }						\
-  acceleratorSynchronise();			
+  { int ptype;						\
+  SE=st.GetEntry(ptype,DIR,ss);				\
+  auto offset = SE->_offset;				\
+  if((!SE->_is_local)&&(!st.same_node[DIR]) ) {		\
+    LOAD_CHI;						\
+    MULT_2SPIN(DIR);					\
+    RECON;						\
+    nmu++;						\
+  }							\
+  acceleratorSynchronise();			}
 
-#define HAND_RESULT(ss)				\
-  {						\
-    SiteSpinor & ref (out[ss]);			\
+#define HAND_RESULT(ss)					\
+  {							\
+    SiteSpinor & ref (out[ss]);				\
     coalescedWrite(ref()(0)(0),result_00,lane);		\
     coalescedWrite(ref()(0)(1),result_01,lane);		\
     coalescedWrite(ref()(0)(2),result_02,lane);		\
@@ -563,7 +566,6 @@ WilsonKernels<Impl>::HandDhopSiteSycl(StencilVector st_perm,StencilEntry *st_p,
 
   HAND_DECLARATIONS(Simt);
 
-  int offset,local,perm, ptype;
   StencilEntry *SE;
   HAND_STENCIL_LEG(XM_PROJ,3,Xp,XM_RECON);
   HAND_STENCIL_LEG(YM_PROJ,2,Yp,YM_RECON_ACCUM);
@@ -593,9 +595,7 @@ WilsonKernels<Impl>::HandDhopSite(StencilView &st, DoubledGaugeFieldView &U,Site
 
   HAND_DECLARATIONS(Simt);
 
-  int offset,local,perm, ptype;
   StencilEntry *SE;
-
   HAND_STENCIL_LEG(XM_PROJ,3,Xp,XM_RECON);
   HAND_STENCIL_LEG(YM_PROJ,2,Yp,YM_RECON_ACCUM);
   HAND_STENCIL_LEG(ZM_PROJ,1,Zp,ZM_RECON_ACCUM);
@@ -623,8 +623,6 @@ void WilsonKernels<Impl>::HandDhopSiteDag(StencilView &st,DoubledGaugeFieldView
   HAND_DECLARATIONS(Simt);
 
   StencilEntry *SE;
-  int offset,local,perm, ptype;
-  
   HAND_STENCIL_LEG(XP_PROJ,3,Xp,XP_RECON);
   HAND_STENCIL_LEG(YP_PROJ,2,Yp,YP_RECON_ACCUM);
   HAND_STENCIL_LEG(ZP_PROJ,1,Zp,ZP_RECON_ACCUM);
@@ -640,8 +638,8 @@ template<class Impl>  accelerator_inline void
 WilsonKernels<Impl>::HandDhopSiteInt(StencilView &st,DoubledGaugeFieldView &U,SiteHalfSpinor  *buf,
 					  int ss,int sU,const FermionFieldView &in, FermionFieldView &out)
 {
-  auto st_p = st._entries_p;						
-  auto st_perm = st._permute_type;					
+  //  auto st_p = st._entries_p;						
+  //  auto st_perm = st._permute_type;					
 // T==0, Z==1, Y==2, Z==3 expect 1,2,2,2 simd layout etc...
   typedef typename Simd::scalar_type S;
   typedef typename Simd::vector_type V;
@@ -652,7 +650,6 @@ WilsonKernels<Impl>::HandDhopSiteInt(StencilView &st,DoubledGaugeFieldView &U,Si
 
   HAND_DECLARATIONS(Simt);
 
-  int offset,local,perm, ptype;
   StencilEntry *SE;
   ZERO_RESULT;
   HAND_STENCIL_LEG_INT(XM_PROJ,3,Xp,XM_RECON_ACCUM);
@@ -670,8 +667,8 @@ template<class Impl> accelerator_inline
 void WilsonKernels<Impl>::HandDhopSiteDagInt(StencilView &st,DoubledGaugeFieldView &U,SiteHalfSpinor *buf,
 						  int ss,int sU,const FermionFieldView &in, FermionFieldView &out)
 {
-  auto st_p = st._entries_p;						
-  auto st_perm = st._permute_type;					
+  //  auto st_p = st._entries_p;						
+  //  auto st_perm = st._permute_type;					
   typedef typename Simd::scalar_type S;
   typedef typename Simd::vector_type V;
   typedef decltype( coalescedRead( in[0]()(0)(0) )) Simt;
@@ -682,7 +679,6 @@ void WilsonKernels<Impl>::HandDhopSiteDagInt(StencilView &st,DoubledGaugeFieldVi
   HAND_DECLARATIONS(Simt);
 
   StencilEntry *SE;
-  int offset,local,perm, ptype;
   ZERO_RESULT;
   HAND_STENCIL_LEG_INT(XP_PROJ,3,Xp,XP_RECON_ACCUM);
   HAND_STENCIL_LEG_INT(YP_PROJ,2,Yp,YP_RECON_ACCUM);
@@ -699,8 +695,8 @@ template<class Impl>  accelerator_inline void
 WilsonKernels<Impl>::HandDhopSiteExt(StencilView &st,DoubledGaugeFieldView &U,SiteHalfSpinor  *buf,
 					  int ss,int sU,const FermionFieldView &in, FermionFieldView &out)
 {
-  auto st_p = st._entries_p;						
-  auto st_perm = st._permute_type;					
+  //  auto st_p = st._entries_p;						
+  //  auto st_perm = st._permute_type;					
 // T==0, Z==1, Y==2, Z==3 expect 1,2,2,2 simd layout etc...
   typedef typename Simd::scalar_type S;
   typedef typename Simd::vector_type V;
@@ -711,7 +707,7 @@ WilsonKernels<Impl>::HandDhopSiteExt(StencilView &st,DoubledGaugeFieldView &U,Si
 
   HAND_DECLARATIONS(Simt);
 
-  int offset, ptype;
+  //  int offset, ptype;
   StencilEntry *SE;
   int nmu=0;
   ZERO_RESULT;
@@ -730,8 +726,8 @@ template<class Impl>  accelerator_inline
 void WilsonKernels<Impl>::HandDhopSiteDagExt(StencilView &st,DoubledGaugeFieldView &U,SiteHalfSpinor *buf,
 						  int ss,int sU,const FermionFieldView &in, FermionFieldView &out)
 {
-  auto st_p = st._entries_p;						
-  auto st_perm = st._permute_type;					
+  //  auto st_p = st._entries_p;						
+  //  auto st_perm = st._permute_type;					
   typedef typename Simd::scalar_type S;
   typedef typename Simd::vector_type V;
   typedef decltype( coalescedRead( in[0]()(0)(0) )) Simt;
@@ -742,7 +738,7 @@ void WilsonKernels<Impl>::HandDhopSiteDagExt(StencilView &st,DoubledGaugeFieldVi
   HAND_DECLARATIONS(Simt);
 
   StencilEntry *SE;
-  int offset, ptype;
+  //  int offset, ptype;
   int nmu=0;
   ZERO_RESULT;
   HAND_STENCIL_LEG_EXT(XP_PROJ,3,Xp,XP_RECON_ACCUM);

Grid/qcd/action/gauge/GaugeImplTypes.h

@@ -61,7 +61,7 @@ NAMESPACE_BEGIN(Grid);
   typedef typename Impl::Field Field;
 
 // hardcodes the exponential approximation in the template
-template <class S, int Nrepresentation = Nc, int Nexp = 20 > class GaugeImplTypes {
+template <class S, int Nrepresentation = Nc, int Nexp = 12 > class GaugeImplTypes {
 public:
   typedef S Simd;
   typedef typename Simd::scalar_type scalar_type;
@@ -78,6 +78,8 @@ public:
   typedef Lattice<SiteLink>    LinkField; 
   typedef Lattice<SiteField>   Field;
 
+  typedef SU<Nrepresentation> Group;
+
   // Guido: we can probably separate the types from the HMC functions
   // this will create 2 kind of implementations
   // probably confusing the users
@@ -118,7 +120,7 @@ public:
     LinkField Pmu(P.Grid());
     Pmu = Zero();
     for (int mu = 0; mu < Nd; mu++) {
-      SU<Nrepresentation>::GaussianFundamentalLieAlgebraMatrix(pRNG, Pmu);
+      Group::GaussianFundamentalLieAlgebraMatrix(pRNG, Pmu);
       RealD scale = ::sqrt(HMC_MOMENTUM_DENOMINATOR) ;
       Pmu = Pmu*scale;
       PokeIndex<LorentzIndex>(P, Pmu, mu);
@@ -159,15 +161,15 @@ public:
   }
 
   static inline void HotConfiguration(GridParallelRNG &pRNG, Field &U) {
-    SU<Nc>::HotConfiguration(pRNG, U);
+    Group::HotConfiguration(pRNG, U);
   }
 
   static inline void TepidConfiguration(GridParallelRNG &pRNG, Field &U) {
-    SU<Nc>::TepidConfiguration(pRNG, U);
+    Group::TepidConfiguration(pRNG, U);
   }
 
   static inline void ColdConfiguration(GridParallelRNG &pRNG, Field &U) {
-    SU<Nc>::ColdConfiguration(pRNG, U);
+    Group::ColdConfiguration(pRNG, U);
   }
 };
 

Grid/qcd/action/pseudofermion/Bounds.h

@@ -40,66 +40,13 @@ NAMESPACE_BEGIN(Grid);
       X=X-Y;
       RealD Nd = norm2(X);
       std::cout << "************************* "<<std::endl;
-      std::cout << " | noise |^2                         = "<<Nx<<std::endl;
-      std::cout << " | (MdagM^-1/2)^2  noise |^2         = "<<Nz<<std::endl;
-      std::cout << " | MdagM (MdagM^-1/2)^2  noise |^2   = "<<Ny<<std::endl;
-      std::cout << " | noise - MdagM (MdagM^-1/2)^2  noise |^2  = "<<Nd<<std::endl;
-      std::cout << " | noise - MdagM (MdagM^-1/2)^2  noise|/|noise| = " << std::sqrt(Nd/Nx) << std::endl;
+      std::cout << " noise                         = "<<Nx<<std::endl;
+      std::cout << " (MdagM^-1/2)^2  noise         = "<<Nz<<std::endl;
+      std::cout << " MdagM (MdagM^-1/2)^2  noise   = "<<Ny<<std::endl;
+      std::cout << " noise - MdagM (MdagM^-1/2)^2  noise   = "<<Nd<<std::endl;
       std::cout << "************************* "<<std::endl;
       assert( (std::sqrt(Nd/Nx)<tol) && " InverseSqrtBoundsCheck ");
     }
 
-    /* For a HermOp = M^dag M, check the approximation of  HermOp^{-1/inv_pow}
-       by computing   |X -    HermOp * [ Hermop^{-1/inv_pow} ]^{inv_pow} X|  < tol  
-       for noise X (aka GaussNoise).
-       ApproxNegPow should be the rational approximation for   X^{-1/inv_pow}
-    */
-    template<class Field> void InversePowerBoundsCheck(int inv_pow,
-						       int MaxIter,double tol,
-						       LinearOperatorBase<Field> &HermOp,
-						       Field &GaussNoise,
-						       MultiShiftFunction &ApproxNegPow) 
-    {
-      GridBase *FermionGrid = GaussNoise.Grid();
-
-      Field X(FermionGrid);
-      Field Y(FermionGrid);
-      Field Z(FermionGrid);
-
-      Field tmp1(FermionGrid), tmp2(FermionGrid);
-
-      X=GaussNoise;
-      RealD Nx = norm2(X);
-
-      ConjugateGradientMultiShift<Field> msCG(MaxIter,ApproxNegPow);
-
-      tmp1 = X;
-      
-      Field* in = &tmp1;
-      Field* out = &tmp2;
-      for(int i=0;i<inv_pow;i++){ //apply  [ Hermop^{-1/inv_pow}  ]^{inv_pow} X =   HermOp^{-1} X
-	msCG(HermOp, *in, *out); //backwards conventions!
-	if(i!=inv_pow-1) std::swap(in, out);
-      }
-      Z = *out;
-
-      RealD Nz = norm2(Z);
-
-      HermOp.HermOp(Z,Y);
-      RealD Ny = norm2(Y);
-
-      X=X-Y;
-      RealD Nd = norm2(X);
-      std::cout << "************************* "<<std::endl;
-      std::cout << " | noise |^2                         = "<<Nx<<std::endl;
-      std::cout << " | (MdagM^-1/" << inv_pow << ")^" << inv_pow << " noise |^2        = "<<Nz<<std::endl;
-      std::cout << " | MdagM (MdagM^-1/" << inv_pow << ")^" << inv_pow << " noise |^2   = "<<Ny<<std::endl;
-      std::cout << " | noise - MdagM (MdagM^-1/" << inv_pow << ")^" << inv_pow << " noise |^2  = "<<Nd<<std::endl;
-      std::cout << " | noise - MdagM (MdagM^-1/" << inv_pow << ")^" << inv_pow << " noise |/| noise |  = "<<std::sqrt(Nd/Nx)<<std::endl;
-      std::cout << "************************* "<<std::endl;
-      assert( (std::sqrt(Nd/Nx)<tol) && " InversePowerBoundsCheck ");
-    }
-
-
 NAMESPACE_END(Grid);
 

Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourBosonPseudoFermion.h

@@ -1,163 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/pseudofermion/DomainDecomposedTwoFlavourBoundaryBoson.h
-
-    Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-///////////////////////////////////////
-// Two flavour ratio
-///////////////////////////////////////
-template<class ImplD,class ImplF>
-class DomainDecomposedBoundaryTwoFlavourBosonPseudoFermion : public Action<typename ImplD::GaugeField> {
-public:
-  INHERIT_IMPL_TYPES(ImplD);
-
-private:
-  SchurFactoredFermionOperator<ImplD,ImplF> & NumOp;// the basic operator
-  RealD InnerStoppingCondition;
-  RealD ActionStoppingCondition;
-  RealD DerivativeStoppingCondition;
-  FermionField Phi; // the pseudo fermion field for this trajectory
-public:
-  DomainDecomposedBoundaryTwoFlavourBosonPseudoFermion(SchurFactoredFermionOperator<ImplD,ImplF>  &_NumOp,RealD _DerivativeTol, RealD _ActionTol, RealD _InnerTol=1.0e-6)
-    : NumOp(_NumOp), 
-      DerivativeStoppingCondition(_DerivativeTol),
-      ActionStoppingCondition(_ActionTol),
-      InnerStoppingCondition(_InnerTol),
-      Phi(_NumOp.FermionGrid()) {};
-
-  virtual std::string action_name(){return "DomainDecomposedBoundaryTwoFlavourBosonPseudoFermion";}
-
-  virtual std::string LogParameters(){
-    std::stringstream sstream;
-    return sstream.str();
-  }  
-  
-  virtual void refresh(const GaugeField &U, GridSerialRNG& sRNG, GridParallelRNG& pRNG)
-  {
-    // P(phi) = e^{- phi^dag P^dag P phi}
-    //
-    // NumOp == P
-    //
-    // Take phi = P^{-1} eta  ; eta = P Phi
-    //
-    // P(eta) = e^{- eta^dag eta}
-    //
-    // e^{x^2/2 sig^2} => sig^2 = 0.5.
-    // 
-    // So eta should be of width sig = 1/sqrt(2) and must multiply by 0.707....
-    //
-    RealD scale = std::sqrt(0.5);
-
-    NumOp.tolinner=InnerStoppingCondition;
-    NumOp.tol=ActionStoppingCondition;
-    NumOp.ImportGauge(U);
-
-    FermionField eta(NumOp.FermionGrid());
-
-    gaussian(pRNG,eta);    eta=eta*scale;
-    
-    NumOp.ProjectBoundaryBar(eta);
-    //DumpSliceNorm("eta",eta);
-    NumOp.RInv(eta,Phi);
-
-    //DumpSliceNorm("Phi",Phi);
-
-  };
-
-  //////////////////////////////////////////////////////
-  // S = phi^dag Pdag P phi
-  //////////////////////////////////////////////////////
-  virtual RealD S(const GaugeField &U) {
-
-    NumOp.tolinner=InnerStoppingCondition;
-    NumOp.tol=ActionStoppingCondition;
-    NumOp.ImportGauge(U);
-
-    FermionField Y(NumOp.FermionGrid());
-
-    NumOp.R(Phi,Y);
-
-    RealD action = norm2(Y);
-
-    return action;
-  };
-
-  virtual void deriv(const GaugeField &U,GaugeField & dSdU)
-  {
-    NumOp.tolinner=InnerStoppingCondition;
-    NumOp.tol=DerivativeStoppingCondition;
-    NumOp.ImportGauge(U);
-
-    GridBase *fgrid = NumOp.FermionGrid();
-    GridBase *ugrid = NumOp.GaugeGrid();
-
-    FermionField  X(fgrid);
-    FermionField  Y(fgrid);
-    FermionField  tmp(fgrid);
-
-    GaugeField   force(ugrid);	
-
-    FermionField DobiDdbPhi(fgrid);      // Vector A in my notes
-    FermionField DoiDdDobiDdbPhi(fgrid); // Vector B in my notes
-    FermionField DoidP_Phi(fgrid);    // Vector E in my notes
-    FermionField DobidDddDoidP_Phi(fgrid);    // Vector F in my notes
-    
-    FermionField P_Phi(fgrid);
-    
-    // P term
-    NumOp.dBoundaryBar(Phi,tmp);
-    NumOp.dOmegaBarInv(tmp,DobiDdbPhi);        // Vector A
-    NumOp.dBoundary(DobiDdbPhi,tmp);
-    NumOp.dOmegaInv(tmp,DoiDdDobiDdbPhi);      // Vector B
-    P_Phi  = Phi - DoiDdDobiDdbPhi;
-    NumOp.ProjectBoundaryBar(P_Phi);
-    
-    // P^dag P term
-    NumOp.dOmegaDagInv(P_Phi,DoidP_Phi); // Vector E
-    NumOp.dBoundaryDag(DoidP_Phi,tmp);
-    NumOp.dOmegaBarDagInv(tmp,DobidDddDoidP_Phi);   // Vector F
-    NumOp.dBoundaryBarDag(DobidDddDoidP_Phi,tmp);
-
-    X = DobiDdbPhi;
-    Y = DobidDddDoidP_Phi;
-    NumOp.DirichletFermOpD.MDeriv(force,Y,X,DaggerNo);    dSdU=force;
-    NumOp.DirichletFermOpD.MDeriv(force,X,Y,DaggerYes);   dSdU=dSdU+force;
-
-    X = DoiDdDobiDdbPhi;
-    Y = DoidP_Phi;
-    NumOp.DirichletFermOpD.MDeriv(force,Y,X,DaggerNo);    dSdU=dSdU+force;
-    NumOp.DirichletFermOpD.MDeriv(force,X,Y,DaggerYes);   dSdU=dSdU+force;
-
-    dSdU *= -1.0;
-
-  };
-};
-
-NAMESPACE_END(Grid);
-

Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourPseudoFermion.h

@@ -1,158 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/pseudofermion/DomainDecomposedTwoFlavourBoundary.h
-
-    Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-///////////////////////////////////////
-// Two flavour ratio
-///////////////////////////////////////
-template<class ImplD,class ImplF>
-class DomainDecomposedBoundaryTwoFlavourPseudoFermion : public Action<typename ImplD::GaugeField> {
-public:
-  INHERIT_IMPL_TYPES(ImplD);
-
-private:
-  SchurFactoredFermionOperator<ImplD,ImplF> & DenOp;// the basic operator
-  RealD ActionStoppingCondition;
-  RealD DerivativeStoppingCondition;
-  RealD InnerStoppingCondition;
-
-  FermionField Phi; // the pseudo fermion field for this trajectory
-
-  RealD refresh_action;
-public:
-  DomainDecomposedBoundaryTwoFlavourPseudoFermion(SchurFactoredFermionOperator<ImplD,ImplF>  &_DenOp,RealD _DerivativeTol, RealD _ActionTol, RealD _InnerTol = 1.0e-6 )
-    : DenOp(_DenOp),
-      DerivativeStoppingCondition(_DerivativeTol),
-      ActionStoppingCondition(_ActionTol),
-      InnerStoppingCondition(_InnerTol),
-      Phi(_DenOp.FermionGrid()) {};
-      
-  virtual std::string action_name(){return "DomainDecomposedBoundaryTwoFlavourPseudoFermion";}
-
- 
-  virtual std::string LogParameters(){
-    std::stringstream sstream;
-    return sstream.str();
-  }  
-  
-  virtual void refresh(const GaugeField &U, GridSerialRNG& sRNG, GridParallelRNG& pRNG)
-  {
-    // P(phi) = e^{- phi^dag Rdag^-1 R^-1 phi}
-    //
-    // DenOp == R
-    //
-    // Take phi = R eta  ; eta = R^-1 Phi
-    //
-    // P(eta) = e^{- eta^dag eta}
-    //
-    // e^{x^2/2 sig^2} => sig^2 = 0.5.
-    // 
-    // So eta should be of width sig = 1/sqrt(2) and must multiply by 0.707....
-    //
-    RealD scale = std::sqrt(0.5);
-
-    DenOp.tolinner=InnerStoppingCondition;
-    DenOp.tol     =ActionStoppingCondition;
-    DenOp.ImportGauge(U);
-
-    FermionField eta(DenOp.FermionGrid());
-
-    gaussian(pRNG,eta);    eta=eta*scale;
-    
-    DenOp.ProjectBoundaryBar(eta);
-    DenOp.R(eta,Phi);
-    //DumpSliceNorm("Phi",Phi);
-    refresh_action = norm2(eta);
-  };
-
-  //////////////////////////////////////////////////////
-  // S = phi^dag Rdag^-1 R^-1 phi
-  //////////////////////////////////////////////////////
-  virtual RealD S(const GaugeField &U) {
-
-    DenOp.tolinner=InnerStoppingCondition;
-    DenOp.tol=ActionStoppingCondition;
-    DenOp.ImportGauge(U);
-
-    FermionField X(DenOp.FermionGrid());
-
-    DenOp.RInv(Phi,X);
-
-    RealD action = norm2(X);
-
-    return action;
-  };
-
-  virtual void deriv(const GaugeField &U,GaugeField & dSdU)
-  {
-    DenOp.tolinner=InnerStoppingCondition;
-    DenOp.tol=DerivativeStoppingCondition;
-    DenOp.ImportGauge(U);
-
-    GridBase *fgrid = DenOp.FermionGrid();
-    GridBase *ugrid = DenOp.GaugeGrid();
-
-    FermionField  X(fgrid);
-    FermionField  Y(fgrid);
-    FermionField  tmp(fgrid);
-
-    GaugeField   force(ugrid);	
-
-    FermionField DiDdb_Phi(fgrid);      // Vector C in my notes
-    FermionField DidRinv_Phi(fgrid);    // Vector D in my notes
-    FermionField Rinv_Phi(fgrid);
-
-//   FermionField RinvDagRinv_Phi(fgrid);
-//   FermionField DdbdDidRinv_Phi(fgrid);
-
-    // R^-1 term
-    DenOp.dBoundaryBar(Phi,tmp);
-    DenOp.Dinverse(tmp,DiDdb_Phi);            // Vector C
-    Rinv_Phi = Phi - DiDdb_Phi;
-    DenOp.ProjectBoundaryBar(Rinv_Phi); 
- 
-    // R^-dagger R^-1 term
-    DenOp.DinverseDag(Rinv_Phi,DidRinv_Phi); // Vector D
-/*
-    DenOp.dBoundaryBarDag(DidRinv_Phi,DdbdDidRinv_Phi);
-    RinvDagRinv_Phi = Rinv_Phi - DdbdDidRinv_Phi;
-    DenOp.ProjectBoundaryBar(RinvDagRinv_Phi);
-*/
-    X = DiDdb_Phi;
-    Y = DidRinv_Phi;
-    DenOp.PeriodicFermOpD.MDeriv(force,Y,X,DaggerNo);    dSdU=force;
-    DenOp.PeriodicFermOpD.MDeriv(force,X,Y,DaggerYes);   dSdU=dSdU+force;
-    DumpSliceNorm("force",dSdU);
-    dSdU *= -1.0;
-  };
-};
-
-NAMESPACE_END(Grid);
-

Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion.h

@@ -1,237 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/pseudofermion/DomainDecomposedTwoFlavourBoundary.h
-
-    Copyright (C) 2021
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-///////////////////////////////////////
-// Two flavour ratio
-///////////////////////////////////////
-template<class ImplD,class ImplF>
-class DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion : public Action<typename ImplD::GaugeField> {
-public:
-  INHERIT_IMPL_TYPES(ImplD);
-
-private:
-  SchurFactoredFermionOperator<ImplD,ImplF> & NumOp;// the basic operator
-  SchurFactoredFermionOperator<ImplD,ImplF> & DenOp;// the basic operator
-
-  RealD InnerStoppingCondition;
-  RealD ActionStoppingCondition;
-  RealD DerivativeStoppingCondition;
-  
-  FermionField Phi; // the pseudo fermion field for this trajectory
-
-public:
-  DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion(SchurFactoredFermionOperator<ImplD,ImplF>  &_NumOp, 
-						       SchurFactoredFermionOperator<ImplD,ImplF>  &_DenOp,
-						       RealD _DerivativeTol, RealD _ActionTol, RealD _InnerTol=1.0e-6)
-    : NumOp(_NumOp), DenOp(_DenOp),
-      Phi(_NumOp.PeriodicFermOpD.FermionGrid()),
-      InnerStoppingCondition(_InnerTol),
-      DerivativeStoppingCondition(_DerivativeTol),
-      ActionStoppingCondition(_ActionTol)
-  {};
-      
-  virtual std::string action_name(){return "DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion";}
- 
-  virtual std::string LogParameters(){
-    std::stringstream sstream;
-    return sstream.str();
-  }  
-  
-  virtual void refresh(const GaugeField &U, GridSerialRNG& sRNG, GridParallelRNG& pRNG)
-  {
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    FermionField eta(NumOp.PeriodicFermOpD.FermionGrid());
-    FermionField tmp(NumOp.PeriodicFermOpD.FermionGrid());
-
-    // P(phi) = e^{- phi^dag P^dag Rdag^-1 R^-1 P phi}
-    //
-    // NumOp == P
-    // DenOp == R
-    //
-    // Take phi = P^{-1} R eta  ; eta = R^-1 P Phi
-    //
-    // P(eta) = e^{- eta^dag eta}
-    //
-    // e^{x^2/2 sig^2} => sig^2 = 0.5.
-    // 
-    // So eta should be of width sig = 1/sqrt(2) and must multiply by 0.707....
-    //
-    RealD scale = std::sqrt(0.5);
-
-    gaussian(pRNG,eta);    eta=eta*scale;
-    
-    NumOp.ProjectBoundaryBar(eta);
-    NumOp.tolinner=InnerStoppingCondition;
-    DenOp.tolinner=InnerStoppingCondition;
-    DenOp.tol = ActionStoppingCondition;
-    NumOp.tol = ActionStoppingCondition;
-    DenOp.R(eta,tmp);
-    NumOp.RInv(tmp,Phi);
-    DumpSliceNorm("Phi",Phi);
-
-  };
-
-  //////////////////////////////////////////////////////
-  // S = phi^dag Pdag Rdag^-1 R^-1 P phi
-  //////////////////////////////////////////////////////
-  virtual RealD S(const GaugeField &U) {
-
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    FermionField X(NumOp.PeriodicFermOpD.FermionGrid());
-    FermionField Y(NumOp.PeriodicFermOpD.FermionGrid());
-
-    NumOp.tolinner=InnerStoppingCondition;
-    DenOp.tolinner=InnerStoppingCondition;
-    DenOp.tol = ActionStoppingCondition;
-    NumOp.tol = ActionStoppingCondition;
-    NumOp.R(Phi,Y);
-    DenOp.RInv(Y,X);
-
-    RealD action = norm2(X);
-    //    std::cout << " DD boundary action is " <<action<<std::endl;
-
-    return action;
-  };
-
-  virtual void deriv(const GaugeField &U,GaugeField & dSdU)
-  {
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    GridBase *fgrid = NumOp.PeriodicFermOpD.FermionGrid();
-    GridBase *ugrid = NumOp.PeriodicFermOpD.GaugeGrid();
-
-    FermionField  X(fgrid);
-    FermionField  Y(fgrid);
-    FermionField  tmp(fgrid);
-
-    GaugeField   force(ugrid);	
-
-    FermionField DobiDdbPhi(fgrid);      // Vector A in my notes
-    FermionField DoiDdDobiDdbPhi(fgrid); // Vector B in my notes
-    FermionField DiDdbP_Phi(fgrid);      // Vector C in my notes
-    FermionField DidRinvP_Phi(fgrid);    // Vector D in my notes
-    FermionField DdbdDidRinvP_Phi(fgrid);
-    FermionField DoidRinvDagRinvP_Phi(fgrid);    // Vector E in my notes
-    FermionField DobidDddDoidRinvDagRinvP_Phi(fgrid);    // Vector F in my notes
-    
-    FermionField P_Phi(fgrid);
-    FermionField RinvP_Phi(fgrid);
-    FermionField RinvDagRinvP_Phi(fgrid);
-    FermionField PdagRinvDagRinvP_Phi(fgrid);
-
-    //    RealD action = S(U);
-    NumOp.tolinner=InnerStoppingCondition;
-    DenOp.tolinner=InnerStoppingCondition;
-    DenOp.tol = DerivativeStoppingCondition;
-    NumOp.tol = DerivativeStoppingCondition;
-    
-    // P term
-    NumOp.dBoundaryBar(Phi,tmp);
-    NumOp.dOmegaBarInv(tmp,DobiDdbPhi);        // Vector A
-    NumOp.dBoundary(DobiDdbPhi,tmp);
-    NumOp.dOmegaInv(tmp,DoiDdDobiDdbPhi);      // Vector B
-    P_Phi  = Phi - DoiDdDobiDdbPhi;
-    NumOp.ProjectBoundaryBar(P_Phi);
-
-    // R^-1 P term
-    DenOp.dBoundaryBar(P_Phi,tmp);
-    DenOp.Dinverse(tmp,DiDdbP_Phi);            // Vector C
-    RinvP_Phi = P_Phi - DiDdbP_Phi;
-    DenOp.ProjectBoundaryBar(RinvP_Phi); // Correct to here
-
- 
-    // R^-dagger R^-1 P term
-    DenOp.DinverseDag(RinvP_Phi,DidRinvP_Phi); // Vector D
-    DenOp.dBoundaryBarDag(DidRinvP_Phi,DdbdDidRinvP_Phi);
-    RinvDagRinvP_Phi = RinvP_Phi - DdbdDidRinvP_Phi;
-    DenOp.ProjectBoundaryBar(RinvDagRinvP_Phi);
-
-    
-    // P^dag R^-dagger R^-1 P term
-    NumOp.dOmegaDagInv(RinvDagRinvP_Phi,DoidRinvDagRinvP_Phi); // Vector E
-    NumOp.dBoundaryDag(DoidRinvDagRinvP_Phi,tmp);
-    NumOp.dOmegaBarDagInv(tmp,DobidDddDoidRinvDagRinvP_Phi);   // Vector F
-    NumOp.dBoundaryBarDag(DobidDddDoidRinvDagRinvP_Phi,tmp);
-    PdagRinvDagRinvP_Phi = RinvDagRinvP_Phi- tmp;
-    NumOp.ProjectBoundaryBar(PdagRinvDagRinvP_Phi);
-
-    /*
-    std::cout << "S eval  "<< action << std::endl;
-    std::cout << "S - IP1 "<< innerProduct(Phi,PdagRinvDagRinvP_Phi) << std::endl;
-    std::cout << "S - IP2 "<< norm2(RinvP_Phi) << std::endl;
-
-    NumOp.R(Phi,tmp);
-    tmp = tmp - P_Phi;
-    std::cout << "diff1 "<<norm2(tmp) <<std::endl;
-    
-    
-    DenOp.RInv(P_Phi,tmp);
-    tmp = tmp - RinvP_Phi;
-    std::cout << "diff2 "<<norm2(tmp) <<std::endl;
-
-    DenOp.RDagInv(RinvP_Phi,tmp);
-    tmp  = tmp - RinvDagRinvP_Phi;
-    std::cout << "diff3 "<<norm2(tmp) <<std::endl;
-
-    DenOp.RDag(RinvDagRinvP_Phi,tmp);
-    tmp  = tmp - PdagRinvDagRinvP_Phi;
-    std::cout << "diff4 "<<norm2(tmp) <<std::endl;
-    */
-    
-    dSdU=Zero();
-
-    X = DobiDdbPhi;
-    Y = DobidDddDoidRinvDagRinvP_Phi;
-    NumOp.DirichletFermOpD.MDeriv(force,Y,X,DaggerNo);    dSdU=dSdU+force;
-    NumOp.DirichletFermOpD.MDeriv(force,X,Y,DaggerYes);   dSdU=dSdU+force;
-
-    X = DoiDdDobiDdbPhi;
-    Y = DoidRinvDagRinvP_Phi;
-    NumOp.DirichletFermOpD.MDeriv(force,Y,X,DaggerNo);    dSdU=dSdU+force;
-    NumOp.DirichletFermOpD.MDeriv(force,X,Y,DaggerYes);   dSdU=dSdU+force;
-
-    X = DiDdbP_Phi;
-    Y = DidRinvP_Phi;
-    DenOp.PeriodicFermOpD.MDeriv(force,Y,X,DaggerNo);    dSdU=dSdU+force;
-    DenOp.PeriodicFermOpD.MDeriv(force,X,Y,DaggerYes);   dSdU=dSdU+force;
-
-    dSdU *= -1.0;
-
-  };
-};
-
-NAMESPACE_END(Grid);
-

Grid/qcd/action/pseudofermion/GeneralEvenOddRationalRatio.h

@@ -1,372 +0,0 @@
-    /*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/pseudofermion/GeneralEvenOddRationalRatio.h
-
-    Copyright (C) 2015
-
-    Author: Christopher Kelly <ckelly@bnl.gov>
-    Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-    *************************************************************************************/
-    /*  END LEGAL */
-#ifndef QCD_PSEUDOFERMION_GENERAL_EVEN_ODD_RATIONAL_RATIO_H
-#define QCD_PSEUDOFERMION_GENERAL_EVEN_ODD_RATIONAL_RATIO_H
-
-NAMESPACE_BEGIN(Grid);
-
-    /////////////////////////////////////////////////////////
-    // Generic rational approximation for ratios of operators
-    /////////////////////////////////////////////////////////
-
-    /* S_f = -log( det(  [M^dag M]/[V^dag V] )^{1/inv_pow}  )
-           = chi^dag ( [M^dag M]/[V^dag V] )^{-1/inv_pow} chi\
-	   = chi^dag ( [V^dag V]^{-1/2} [M^dag M] [V^dag V]^{-1/2} )^{-1/inv_pow} chi\
-	   = chi^dag [V^dag V]^{1/(2*inv_pow)} [M^dag M]^{-1/inv_pow} [V^dag V]^{1/(2*inv_pow)} chi\
-
-	   S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi       
-    
-       BIG WARNING:	   
-       Here V^dag V is referred to in this code as the "numerator" operator and M^dag M is the *denominator* operator.
-       this refers to their position in the pseudofermion action, which is the *inverse* of what appears in the determinant
-       Thus for DWF the numerator operator is the Pauli-Villars operator
-
-       Here P/Q \sim R_{1/(2*inv_pow)}  ~ (V^dagV)^{1/(2*inv_pow)}  
-       Here N/D \sim R_{-1/inv_pow} ~ (M^dagM)^{-1/inv_pow}  
-    */
-      
-    template<class Impl>
-    class GeneralEvenOddRatioRationalPseudoFermionAction : public Action<typename Impl::GaugeField> {
-    public:
-
-      INHERIT_IMPL_TYPES(Impl);
-
-      typedef RationalActionParams Params;
-      Params param;
-
-      //For action evaluation
-      MultiShiftFunction ApproxPowerAction   ;  //rational approx for X^{1/inv_pow}
-      MultiShiftFunction ApproxNegPowerAction;  //rational approx for X^{-1/inv_pow}
-      MultiShiftFunction ApproxHalfPowerAction;   //rational approx for X^{1/(2*inv_pow)}
-      MultiShiftFunction ApproxNegHalfPowerAction; //rational approx for X^{-1/(2*inv_pow)}
-
-      //For the MD integration
-      MultiShiftFunction ApproxPowerMD   ;  //rational approx for X^{1/inv_pow}
-      MultiShiftFunction ApproxNegPowerMD;  //rational approx for X^{-1/inv_pow}
-      MultiShiftFunction ApproxHalfPowerMD;   //rational approx for X^{1/(2*inv_pow)}
-      MultiShiftFunction ApproxNegHalfPowerMD; //rational approx for X^{-1/(2*inv_pow)}
-
-    private:
-     
-      FermionOperator<Impl> & NumOp;// the basic operator
-      FermionOperator<Impl> & DenOp;// the basic operator
-      FermionField PhiEven; // the pseudo fermion field for this trajectory
-      FermionField PhiOdd; // the pseudo fermion field for this trajectory
-
-      //Generate the approximation to x^{1/inv_pow} (->approx)   and x^{-1/inv_pow} (-> approx_inv)  by an approx_degree degree rational approximation
-      //CG_tolerance is used to issue a warning if the approximation error is larger than the tolerance of the CG and is otherwise just stored in the MultiShiftFunction for use by the multi-shift
-      static void generateApprox(MultiShiftFunction &approx, MultiShiftFunction &approx_inv, int inv_pow, int approx_degree, double CG_tolerance, AlgRemez &remez){
-	std::cout<<GridLogMessage << "Generating degree "<< approx_degree<<" approximation for x^(1/" << inv_pow << ")"<<std::endl;
-	double error = remez.generateApprox(approx_degree,1,inv_pow);	
-	if(error > CG_tolerance)
-	  std::cout<<GridLogMessage << "WARNING: Remez approximation has a larger error " << error << " than the CG tolerance " << CG_tolerance << "! Try increasing the number of poles" << std::endl;
-	
-	approx.Init(remez, CG_tolerance,false);
-	approx_inv.Init(remez, CG_tolerance,true);
-      }
-
-
-    protected:
-      static constexpr bool Numerator = true;
-      static constexpr bool Denominator = false;
-
-      //Allow derived classes to override the multishift CG
-      virtual void multiShiftInverse(bool numerator, const MultiShiftFunction &approx, const Integer MaxIter, const FermionField &in, FermionField &out){
-	SchurDifferentiableOperator<Impl> schurOp(numerator ? NumOp : DenOp);
-	ConjugateGradientMultiShift<FermionField> msCG(MaxIter, approx);
-	msCG(schurOp,in, out);
-      }
-      virtual void multiShiftInverse(bool numerator, const MultiShiftFunction &approx, const Integer MaxIter, const FermionField &in, std::vector<FermionField> &out_elems, FermionField &out){
-	SchurDifferentiableOperator<Impl> schurOp(numerator ? NumOp : DenOp);
-	ConjugateGradientMultiShift<FermionField> msCG(MaxIter, approx);
-	msCG(schurOp,in, out_elems, out);
-      }
-      //Allow derived classes to override the gauge import
-      virtual void ImportGauge(const GaugeField &U){
-	NumOp.ImportGauge(U);
-	DenOp.ImportGauge(U);
-      }
-      
-    public:
-
-      GeneralEvenOddRatioRationalPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
-						     FermionOperator<Impl>  &_DenOp, 
-						     const Params & p
-						     ) : 
-	NumOp(_NumOp), 
-	DenOp(_DenOp), 
-	PhiOdd (_NumOp.FermionRedBlackGrid()),
-	PhiEven(_NumOp.FermionRedBlackGrid()),
-	param(p) 
-      {
-	std::cout<<GridLogMessage << action_name() << " initialize: starting" << std::endl;
-	AlgRemez remez(param.lo,param.hi,param.precision);
-
-	//Generate approximations for action eval
-	generateApprox(ApproxPowerAction, ApproxNegPowerAction, param.inv_pow, param.action_degree, param.action_tolerance, remez);
-	generateApprox(ApproxHalfPowerAction, ApproxNegHalfPowerAction, 2*param.inv_pow, param.action_degree, param.action_tolerance, remez);
-
-	//Generate approximations for MD
-	if(param.md_degree != param.action_degree){ //note the CG tolerance is unrelated to the stopping condition of the Remez algorithm
-	  generateApprox(ApproxPowerMD, ApproxNegPowerMD, param.inv_pow, param.md_degree, param.md_tolerance, remez);
-	  generateApprox(ApproxHalfPowerMD, ApproxNegHalfPowerMD, 2*param.inv_pow, param.md_degree, param.md_tolerance, remez);
-	}else{
-	  std::cout<<GridLogMessage << "Using same rational approximations for MD as for action evaluation" << std::endl;
-	  ApproxPowerMD = ApproxPowerAction; 
-	  ApproxNegPowerMD = ApproxNegPowerAction;
-	  for(int i=0;i<ApproxPowerMD.tolerances.size();i++)
-	    ApproxNegPowerMD.tolerances[i] = ApproxPowerMD.tolerances[i] = param.md_tolerance; //used for multishift
-
-	  ApproxHalfPowerMD = ApproxHalfPowerAction;
-	  ApproxNegHalfPowerMD = ApproxNegHalfPowerAction;
-	  for(int i=0;i<ApproxPowerMD.tolerances.size();i++)
-	    ApproxNegHalfPowerMD.tolerances[i] = ApproxHalfPowerMD.tolerances[i] = param.md_tolerance;
-	}
-
-	std::cout<<GridLogMessage << action_name() << " initialize: complete" << std::endl;
-      };
-
-      virtual std::string action_name(){return "GeneralEvenOddRatioRationalPseudoFermionAction";}
-
-      virtual std::string LogParameters(){
-	std::stringstream sstream;
-	sstream << GridLogMessage << "["<<action_name()<<"] Power              : 1/" << param.inv_pow <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] Low                :" << param.lo <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] High               :" << param.hi <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] Max iterations     :" << param.MaxIter <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] Tolerance (Action) :" << param.action_tolerance <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] Degree (Action)    :" << param.action_degree <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] Tolerance (MD)     :" << param.md_tolerance <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] Degree (MD)        :" << param.md_degree <<  std::endl;
-	sstream << GridLogMessage << "["<<action_name()<<"] Precision          :" << param.precision <<  std::endl;
-	return sstream.str();
-      }
-
-      //Access the fermion field
-      const FermionField &getPhiOdd() const{ return PhiOdd; }
-      
-      virtual void refresh(const GaugeField &U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) {
-	std::cout<<GridLogMessage << action_name() << " refresh: starting" << std::endl;
-	FermionField eta(NumOp.FermionGrid());	
-
-	// P(eta) \propto e^{- eta^dag eta}
-	//	
-	// The gaussian function draws from  P(x) \propto e^{- x^2 / 2 }    [i.e. sigma=1]
-	// Thus eta = x/sqrt{2} = x * sqrt(1/2)
-	RealD scale = std::sqrt(0.5);
-	gaussian(pRNG,eta);	eta=eta*scale;
-
-	refresh(U,eta);
-      }
-
-      //Allow for manual specification of random field for testing
-      void refresh(const GaugeField &U, const FermionField &eta) {
-
-	// S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi       
-	//
-	// P(phi) = e^{- phi^dag (VdagV)^1/(2*inv_pow) (MdagM)^-1/inv_pow (VdagV)^1/(2*inv_pow) phi}
-	//        = e^{- phi^dag  (VdagV)^1/(2*inv_pow) (MdagM)^-1/(2*inv_pow) (MdagM)^-1/(2*inv_pow)  (VdagV)^1/(2*inv_pow) phi}
-	//
-	// Phi =  (VdagV)^-1/(2*inv_pow) Mdag^{1/(2*inv_pow)} eta 
-	
-	std::cout<<GridLogMessage << action_name() << " refresh: starting" << std::endl;
-
-	FermionField etaOdd (NumOp.FermionRedBlackGrid());
-	FermionField etaEven(NumOp.FermionRedBlackGrid());
-	FermionField     tmp(NumOp.FermionRedBlackGrid());
-
-	pickCheckerboard(Even,etaEven,eta);
-	pickCheckerboard(Odd,etaOdd,eta);
-
-	ImportGauge(U);
-
-	// MdagM^1/(2*inv_pow) eta
-	std::cout<<GridLogMessage << action_name() << " refresh: doing (M^dag M)^{1/" << 2*param.inv_pow << "} eta" << std::endl;
-	multiShiftInverse(Denominator, ApproxHalfPowerAction, param.MaxIter, etaOdd, tmp);
-
-	// VdagV^-1/(2*inv_pow) MdagM^1/(2*inv_pow) eta
-	std::cout<<GridLogMessage << action_name() << " refresh: doing (V^dag V)^{-1/" << 2*param.inv_pow << "} ( (M^dag M)^{1/" << 2*param.inv_pow << "} eta)" << std::endl;
-	multiShiftInverse(Numerator, ApproxNegHalfPowerAction, param.MaxIter, tmp, PhiOdd);
-		
-	assert(NumOp.ConstEE() == 1);
-	assert(DenOp.ConstEE() == 1);
-	PhiEven = Zero();
-	std::cout<<GridLogMessage << action_name() << " refresh: starting" << std::endl;
-      };
-
-      //////////////////////////////////////////////////////
-      // S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi       
-      //////////////////////////////////////////////////////
-      virtual RealD S(const GaugeField &U) {
-	std::cout<<GridLogMessage << action_name() << " compute action: starting" << std::endl;
-	ImportGauge(U);
-
-	FermionField X(NumOp.FermionRedBlackGrid());
-	FermionField Y(NumOp.FermionRedBlackGrid());
-
-	// VdagV^1/(2*inv_pow) Phi
-	std::cout<<GridLogMessage << action_name() << " compute action: doing (V^dag V)^{1/" << 2*param.inv_pow << "} Phi" << std::endl;
-	multiShiftInverse(Numerator, ApproxHalfPowerAction, param.MaxIter, PhiOdd,X);
-
-	// MdagM^-1/(2*inv_pow) VdagV^1/(2*inv_pow) Phi
-	std::cout<<GridLogMessage << action_name() << " compute action: doing (M^dag M)^{-1/" << 2*param.inv_pow << "} ( (V^dag V)^{1/" << 2*param.inv_pow << "} Phi)" << std::endl;
-	multiShiftInverse(Denominator, ApproxNegHalfPowerAction, param.MaxIter, X,Y);
-
-	// Randomly apply rational bounds checks.
-	int rcheck = rand();
-	auto grid = NumOp.FermionGrid();
-        auto r=rand();
-        grid->Broadcast(0,r);
-
-	if ( param.BoundsCheckFreq != 0 && (r % param.BoundsCheckFreq)==0 ) { 
-	  std::cout<<GridLogMessage << action_name() << " compute action: doing bounds check" << std::endl;
-	  FermionField gauss(NumOp.FermionRedBlackGrid());
-	  gauss = PhiOdd;
-	  SchurDifferentiableOperator<Impl> MdagM(DenOp);
-	  std::cout<<GridLogMessage << action_name() << " compute action: checking high bounds" << std::endl;
-	  HighBoundCheck(MdagM,gauss,param.hi);
-	  std::cout<<GridLogMessage << action_name() << " compute action: full approximation" << std::endl;
-	  InversePowerBoundsCheck(param.inv_pow,param.MaxIter,param.action_tolerance*100,MdagM,gauss,ApproxNegPowerAction);
-	  std::cout<<GridLogMessage << action_name() << " compute action: bounds check complete" << std::endl;
-	}
-
-	//  Phidag VdagV^1/(2*inv_pow) MdagM^-1/(2*inv_pow)  MdagM^-1/(2*inv_pow) VdagV^1/(2*inv_pow) Phi
-	RealD action = norm2(Y);
-	std::cout<<GridLogMessage << action_name() << " compute action: complete" << std::endl;
-
-	return action;
-      };
-
-      // S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi       
-      //
-      // Here, M is some 5D operator and V is the Pauli-Villars field
-      // N and D makeup the rat. poly of the M term and P and & makeup the rat.poly of the denom term
-      //
-      // Need  
-      // dS_f/dU =  chi^dag d[P/Q]  N/D   P/Q  chi 
-      //         +  chi^dag   P/Q d[N/D]  P/Q  chi 
-      //         +  chi^dag   P/Q   N/D d[P/Q] chi 
-      //
-      // P/Q is expressed as partial fraction expansion: 
-      // 
-      //           a0 + \sum_k ak/(V^dagV + bk) 
-      //  
-      // d[P/Q] is then  
-      //
-      //          \sum_k -ak [V^dagV+bk]^{-1}  [ dV^dag V + V^dag dV ] [V^dag V + bk]^{-1} 
-      //  
-      // and similar for N/D. 
-      // 
-      // Need   
-      //       MpvPhi_k   = [Vdag V + bk]^{-1} chi  
-      //       MpvPhi     = {a0 +  \sum_k ak [Vdag V + bk]^{-1} }chi   
-      //   
-      //       MfMpvPhi_k = [MdagM+bk]^{-1} MpvPhi  
-      //       MfMpvPhi   = {a0 +  \sum_k ak [Mdag M + bk]^{-1} } MpvPhi
-      // 
-      //       MpvMfMpvPhi_k = [Vdag V + bk]^{-1} MfMpvchi   
-      //  
-
-      virtual void deriv(const GaugeField &U,GaugeField & dSdU) {
-	std::cout<<GridLogMessage << action_name() << " deriv: starting" << std::endl;
-	const int n_f  = ApproxNegPowerMD.poles.size();
-	const int n_pv = ApproxHalfPowerMD.poles.size();
-
-	std::vector<FermionField> MpvPhi_k     (n_pv,NumOp.FermionRedBlackGrid());
-	std::vector<FermionField> MpvMfMpvPhi_k(n_pv,NumOp.FermionRedBlackGrid());
-	std::vector<FermionField> MfMpvPhi_k   (n_f ,NumOp.FermionRedBlackGrid());
-
-	FermionField      MpvPhi(NumOp.FermionRedBlackGrid());
-	FermionField    MfMpvPhi(NumOp.FermionRedBlackGrid());
-	FermionField MpvMfMpvPhi(NumOp.FermionRedBlackGrid());
-	FermionField           Y(NumOp.FermionRedBlackGrid());
-
-	GaugeField   tmp(NumOp.GaugeGrid());
-
-	ImportGauge(U);
-
-	std::cout<<GridLogMessage << action_name() << " deriv: doing (V^dag V)^{1/" << 2*param.inv_pow << "} Phi" << std::endl;
-	multiShiftInverse(Numerator, ApproxHalfPowerMD, param.MaxIter, PhiOdd,MpvPhi_k,MpvPhi);
-
-	std::cout<<GridLogMessage << action_name() << " deriv: doing (M^dag M)^{-1/" << param.inv_pow << "} ( (V^dag V)^{1/" << 2*param.inv_pow << "} Phi)" << std::endl;
-	multiShiftInverse(Denominator, ApproxNegPowerMD, param.MaxIter, MpvPhi,MfMpvPhi_k,MfMpvPhi);
-
-	std::cout<<GridLogMessage << action_name() << " deriv: doing (V^dag V)^{1/" << 2*param.inv_pow << "} ( (M^dag M)^{-1/" << param.inv_pow << "} (V^dag V)^{1/" << 2*param.inv_pow << "} Phi)" << std::endl;
-	multiShiftInverse(Numerator, ApproxHalfPowerMD, param.MaxIter, MfMpvPhi,MpvMfMpvPhi_k,MpvMfMpvPhi);
-		
-
-	SchurDifferentiableOperator<Impl> MdagM(DenOp);
-	SchurDifferentiableOperator<Impl> VdagV(NumOp);
-
-
-	RealD ak;
-
-	dSdU = Zero();
-
-	// With these building blocks  
-	//  
-	//       dS/dU = 
-	//                 \sum_k -ak MfMpvPhi_k^dag      [ dM^dag M + M^dag dM ] MfMpvPhi_k         (1)
-	//             +   \sum_k -ak MpvMfMpvPhi_k^\dag  [ dV^dag V + V^dag dV ] MpvPhi_k           (2)
-	//                        -ak MpvPhi_k^dag        [ dV^dag V + V^dag dV ] MpvMfMpvPhi_k      (3)
-
-	//(1)	
-	std::cout<<GridLogMessage << action_name() << " deriv: doing dS/dU part (1)" << std::endl;
-	for(int k=0;k<n_f;k++){
-	  ak = ApproxNegPowerMD.residues[k];
-	  MdagM.Mpc(MfMpvPhi_k[k],Y);
-	  MdagM.MpcDagDeriv(tmp , MfMpvPhi_k[k], Y );  dSdU=dSdU+ak*tmp;
-	  MdagM.MpcDeriv(tmp , Y, MfMpvPhi_k[k] );  dSdU=dSdU+ak*tmp;
-	}
-	
-	//(2)
-	//(3)
-	std::cout<<GridLogMessage << action_name() << " deriv: doing dS/dU part (2)+(3)" << std::endl;
-	for(int k=0;k<n_pv;k++){
-
-          ak = ApproxHalfPowerMD.residues[k];
-	  
-	  VdagV.Mpc(MpvPhi_k[k],Y);
-	  VdagV.MpcDagDeriv(tmp,MpvMfMpvPhi_k[k],Y); dSdU=dSdU+ak*tmp;
-	  VdagV.MpcDeriv   (tmp,Y,MpvMfMpvPhi_k[k]);  dSdU=dSdU+ak*tmp;     
-	  
-	  VdagV.Mpc(MpvMfMpvPhi_k[k],Y);                // V as we take Ydag 
-	  VdagV.MpcDeriv   (tmp,Y, MpvPhi_k[k]); dSdU=dSdU+ak*tmp;
-	  VdagV.MpcDagDeriv(tmp,MpvPhi_k[k], Y); dSdU=dSdU+ak*tmp;
-
-	}
-
-	//dSdU = Ta(dSdU);
-	std::cout<<GridLogMessage << action_name() << " deriv: complete" << std::endl;
-      };
-    };
-
-NAMESPACE_END(Grid);
-
-#endif

Grid/qcd/action/pseudofermion/GeneralEvenOddRationalRatioMixedPrec.h

@@ -1,93 +0,0 @@
-    /*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/pseudofermion/GeneralEvenOddRationalRatioMixedPrec.h
-
-    Copyright (C) 2015
-
-    Author: Christopher Kelly <ckelly@bnl.gov>
-    Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-    *************************************************************************************/
-    /*  END LEGAL */
-#ifndef QCD_PSEUDOFERMION_GENERAL_EVEN_ODD_RATIONAL_RATIO_MIXED_PREC_H
-#define QCD_PSEUDOFERMION_GENERAL_EVEN_ODD_RATIONAL_RATIO_MIXED_PREC_H
-
-NAMESPACE_BEGIN(Grid);
-
-    /////////////////////////////////////////////////////////////////////////////////////////////////////////////
-    // Generic rational approximation for ratios of operators utilizing the mixed precision multishift algorithm
-    // cf. GeneralEvenOddRational.h for details
-    /////////////////////////////////////////////////////////////////////////////////////////////////////////////
-      
-    template<class ImplD, class ImplF>
-    class GeneralEvenOddRatioRationalMixedPrecPseudoFermionAction : public GeneralEvenOddRatioRationalPseudoFermionAction<ImplD> {
-    private:
-      typedef typename ImplD::FermionField FermionFieldD;
-      typedef typename ImplF::FermionField FermionFieldF;
-
-      FermionOperator<ImplD> & NumOpD;
-      FermionOperator<ImplD> & DenOpD;
-     
-      FermionOperator<ImplF> & NumOpF;
-      FermionOperator<ImplF> & DenOpF;
-
-      Integer ReliableUpdateFreq;
-    protected:
-
-      //Allow derived classes to override the multishift CG
-      virtual void multiShiftInverse(bool numerator, const MultiShiftFunction &approx, const Integer MaxIter, const FermionFieldD &in, FermionFieldD &out){
-	SchurDifferentiableOperator<ImplD> schurOpD(numerator ? NumOpD : DenOpD);
-	SchurDifferentiableOperator<ImplF> schurOpF(numerator ? NumOpF : DenOpF);
-
-	ConjugateGradientMultiShiftMixedPrec<FermionFieldD, FermionFieldF> msCG(MaxIter, approx, NumOpF.FermionRedBlackGrid(), schurOpF, ReliableUpdateFreq);
-	msCG(schurOpD, in, out);
-      }
-      virtual void multiShiftInverse(bool numerator, const MultiShiftFunction &approx, const Integer MaxIter, const FermionFieldD &in, std::vector<FermionFieldD> &out_elems, FermionFieldD &out){
-	SchurDifferentiableOperator<ImplD> schurOpD(numerator ? NumOpD : DenOpD);
-	SchurDifferentiableOperator<ImplF> schurOpF(numerator ? NumOpF : DenOpF);
-
-	ConjugateGradientMultiShiftMixedPrec<FermionFieldD, FermionFieldF> msCG(MaxIter, approx, NumOpF.FermionRedBlackGrid(), schurOpF, ReliableUpdateFreq);
-	msCG(schurOpD, in, out_elems, out);
-      }
-      //Allow derived classes to override the gauge import
-      virtual void ImportGauge(const typename ImplD::GaugeField &Ud){
-	typename ImplF::GaugeField Uf(NumOpF.GaugeGrid());
-	precisionChange(Uf, Ud);
-	
-	NumOpD.ImportGauge(Ud);
-	DenOpD.ImportGauge(Ud);
-
-	NumOpF.ImportGauge(Uf);
-	DenOpF.ImportGauge(Uf);
-      }
-      
-    public:
-      GeneralEvenOddRatioRationalMixedPrecPseudoFermionAction(FermionOperator<ImplD>  &_NumOpD, FermionOperator<ImplD>  &_DenOpD, 
-							      FermionOperator<ImplF>  &_NumOpF, FermionOperator<ImplF>  &_DenOpF, 
-							      const RationalActionParams & p, Integer _ReliableUpdateFreq
-							      ) : GeneralEvenOddRatioRationalPseudoFermionAction<ImplD>(_NumOpD, _DenOpD, p),
-								  ReliableUpdateFreq(_ReliableUpdateFreq), NumOpD(_NumOpD), DenOpD(_DenOpD), NumOpF(_NumOpF), DenOpF(_DenOpF){}
-      
-      virtual std::string action_name(){return "GeneralEvenOddRatioRationalMixedPrecPseudoFermionAction";}
-    };
-
-NAMESPACE_END(Grid);
-
-#endif

Grid/qcd/action/pseudofermion/OneFlavourEvenOddRationalRatio.h

@@ -40,31 +40,249 @@ NAMESPACE_BEGIN(Grid);
     // Here N/D \sim R_{-1/2} ~ (M^dagM)^{-1/2}  
   
     template<class Impl>
-    class OneFlavourEvenOddRatioRationalPseudoFermionAction : public GeneralEvenOddRatioRationalPseudoFermionAction<Impl> {
+    class OneFlavourEvenOddRatioRationalPseudoFermionAction : public Action<typename Impl::GaugeField> {
     public:
+
+      INHERIT_IMPL_TYPES(Impl);
+
       typedef OneFlavourRationalParams Params;
+      Params param;
+
+      MultiShiftFunction PowerHalf   ;
+      MultiShiftFunction PowerNegHalf;
+      MultiShiftFunction PowerQuarter;
+      MultiShiftFunction PowerNegQuarter;
+
     private:
-      static RationalActionParams transcribe(const Params &in){
-	RationalActionParams out;
-	out.inv_pow = 2;
-	out.lo = in.lo;
-	out.hi = in.hi;
-	out.MaxIter = in.MaxIter;
-	out.action_tolerance = out.md_tolerance = in.tolerance;
-	out.action_degree = out.md_degree = in.degree;
-	out.precision = in.precision;
-	out.BoundsCheckFreq = in.BoundsCheckFreq;
-	return out;
-      }
+     
+      FermionOperator<Impl> & NumOp;// the basic operator
+      FermionOperator<Impl> & DenOp;// the basic operator
+      FermionField PhiEven; // the pseudo fermion field for this trajectory
+      FermionField PhiOdd; // the pseudo fermion field for this trajectory
 
     public:
-      OneFlavourEvenOddRatioRationalPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
-							FermionOperator<Impl>  &_DenOp, 
-							const Params & p
-							) : 
-	GeneralEvenOddRatioRationalPseudoFermionAction<Impl>(_NumOp, _DenOp, transcribe(p)){}
 
-      virtual std::string action_name(){return "OneFlavourEvenOddRatioRationalPseudoFermionAction";}      
+      OneFlavourEvenOddRatioRationalPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
+					    FermionOperator<Impl>  &_DenOp, 
+					    Params & p
+					    ) : 
+      NumOp(_NumOp), 
+      DenOp(_DenOp), 
+      PhiOdd (_NumOp.FermionRedBlackGrid()),
+      PhiEven(_NumOp.FermionRedBlackGrid()),
+      param(p) 
+      {
+	AlgRemez remez(param.lo,param.hi,param.precision);
+
+	// MdagM^(+- 1/2)
+	std::cout<<GridLogMessage << "Generating degree "<<param.degree<<" for x^(1/2)"<<std::endl;
+	remez.generateApprox(param.degree,1,2);
+	PowerHalf.Init(remez,param.tolerance,false);
+	PowerNegHalf.Init(remez,param.tolerance,true);
+
+	// MdagM^(+- 1/4)
+	std::cout<<GridLogMessage << "Generating degree "<<param.degree<<" for x^(1/4)"<<std::endl;
+	remez.generateApprox(param.degree,1,4);
+   	PowerQuarter.Init(remez,param.tolerance,false);
+	PowerNegQuarter.Init(remez,param.tolerance,true);
+      };
+
+      virtual std::string action_name(){return "OneFlavourEvenOddRatioRationalPseudoFermionAction";}
+
+      virtual std::string LogParameters(){
+	std::stringstream sstream;
+	sstream << GridLogMessage << "["<<action_name()<<"] Low            :" << param.lo <<  std::endl;
+	sstream << GridLogMessage << "["<<action_name()<<"] High           :" << param.hi <<  std::endl;
+	sstream << GridLogMessage << "["<<action_name()<<"] Max iterations :" << param.MaxIter <<  std::endl;
+	sstream << GridLogMessage << "["<<action_name()<<"] Tolerance      :" << param.tolerance <<  std::endl;
+	sstream << GridLogMessage << "["<<action_name()<<"] Degree         :" << param.degree <<  std::endl;
+	sstream << GridLogMessage << "["<<action_name()<<"] Precision      :" << param.precision <<  std::endl;
+	return sstream.str();
+      }
+      
+      
+      virtual void refresh(const GaugeField &U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) {
+
+	// S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi       
+	//
+	// P(phi) = e^{- phi^dag (VdagV)^1/4 (MdagM)^-1/2 (VdagV)^1/4 phi}
+	//        = e^{- phi^dag  (VdagV)^1/4 (MdagM)^-1/4 (MdagM)^-1/4  (VdagV)^1/4 phi}
+	//
+	// Phi =  (VdagV)^-1/4 Mdag^{1/4} eta 
+	//
+	// P(eta) = e^{- eta^dag eta}
+	//
+	// e^{x^2/2 sig^2} => sig^2 = 0.5.
+	// 
+	// So eta should be of width sig = 1/sqrt(2).
+
+	RealD scale = std::sqrt(0.5);
+
+	FermionField eta(NumOp.FermionGrid());
+	FermionField etaOdd (NumOp.FermionRedBlackGrid());
+	FermionField etaEven(NumOp.FermionRedBlackGrid());
+	FermionField     tmp(NumOp.FermionRedBlackGrid());
+
+	gaussian(pRNG,eta);	eta=eta*scale;
+
+	pickCheckerboard(Even,etaEven,eta);
+	pickCheckerboard(Odd,etaOdd,eta);
+
+	NumOp.ImportGauge(U);
+	DenOp.ImportGauge(U);
+
+
+	// MdagM^1/4 eta
+	SchurDifferentiableOperator<Impl> MdagM(DenOp);
+	ConjugateGradientMultiShift<FermionField> msCG_M(param.MaxIter,PowerQuarter);
+	msCG_M(MdagM,etaOdd,tmp);
+
+	// VdagV^-1/4 MdagM^1/4 eta
+	SchurDifferentiableOperator<Impl> VdagV(NumOp);
+	ConjugateGradientMultiShift<FermionField> msCG_V(param.MaxIter,PowerNegQuarter);
+	msCG_V(VdagV,tmp,PhiOdd);
+
+	assert(NumOp.ConstEE() == 1);
+	assert(DenOp.ConstEE() == 1);
+	PhiEven = Zero();
+	
+      };
+
+      //////////////////////////////////////////////////////
+      // S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi       
+      //////////////////////////////////////////////////////
+      virtual RealD S(const GaugeField &U) {
+
+	NumOp.ImportGauge(U);
+	DenOp.ImportGauge(U);
+
+	FermionField X(NumOp.FermionRedBlackGrid());
+	FermionField Y(NumOp.FermionRedBlackGrid());
+
+	// VdagV^1/4 Phi
+	SchurDifferentiableOperator<Impl> VdagV(NumOp);
+	ConjugateGradientMultiShift<FermionField> msCG_V(param.MaxIter,PowerQuarter);
+	msCG_V(VdagV,PhiOdd,X);
+
+	// MdagM^-1/4 VdagV^1/4 Phi
+	SchurDifferentiableOperator<Impl> MdagM(DenOp);
+	ConjugateGradientMultiShift<FermionField> msCG_M(param.MaxIter,PowerNegQuarter);
+	msCG_M(MdagM,X,Y);
+
+	// Randomly apply rational bounds checks.
+	auto grid = NumOp.FermionGrid();
+        auto r=rand();
+        grid->Broadcast(0,r);
+        if ( (r%param.BoundsCheckFreq)==0 ) { 
+	  FermionField gauss(NumOp.FermionRedBlackGrid());
+	  gauss = PhiOdd;
+	  HighBoundCheck(MdagM,gauss,param.hi);
+	  InverseSqrtBoundsCheck(param.MaxIter,param.tolerance*100,MdagM,gauss,PowerNegHalf);
+	}
+
+	//  Phidag VdagV^1/4 MdagM^-1/4  MdagM^-1/4 VdagV^1/4 Phi
+	RealD action = norm2(Y);
+
+	return action;
+      };
+
+      // S_f = chi^dag* P(V^dag*V)/Q(V^dag*V)* N(M^dag*M)/D(M^dag*M)* P(V^dag*V)/Q(V^dag*V)* chi       
+      //
+      // Here, M is some 5D operator and V is the Pauli-Villars field
+      // N and D makeup the rat. poly of the M term and P and & makeup the rat.poly of the denom term
+      //
+      // Need  
+      // dS_f/dU =  chi^dag d[P/Q]  N/D   P/Q  chi 
+      //         +  chi^dag   P/Q d[N/D]  P/Q  chi 
+      //         +  chi^dag   P/Q   N/D d[P/Q] chi 
+      //
+      // P/Q is expressed as partial fraction expansion: 
+      // 
+      //           a0 + \sum_k ak/(V^dagV + bk) 
+      //  
+      // d[P/Q] is then  
+      //
+      //          \sum_k -ak [V^dagV+bk]^{-1}  [ dV^dag V + V^dag dV ] [V^dag V + bk]^{-1} 
+      //  
+      // and similar for N/D. 
+      // 
+      // Need   
+      //       MpvPhi_k   = [Vdag V + bk]^{-1} chi  
+      //       MpvPhi     = {a0 +  \sum_k ak [Vdag V + bk]^{-1} }chi   
+      //   
+      //       MfMpvPhi_k = [MdagM+bk]^{-1} MpvPhi  
+      //       MfMpvPhi   = {a0 +  \sum_k ak [Mdag M + bk]^{-1} } MpvPhi
+      // 
+      //       MpvMfMpvPhi_k = [Vdag V + bk]^{-1} MfMpvchi   
+      //  
+
+      virtual void deriv(const GaugeField &U,GaugeField & dSdU) {
+
+	const int n_f  = PowerNegHalf.poles.size();
+	const int n_pv = PowerQuarter.poles.size();
+
+	std::vector<FermionField> MpvPhi_k     (n_pv,NumOp.FermionRedBlackGrid());
+	std::vector<FermionField> MpvMfMpvPhi_k(n_pv,NumOp.FermionRedBlackGrid());
+	std::vector<FermionField> MfMpvPhi_k   (n_f ,NumOp.FermionRedBlackGrid());
+
+	FermionField      MpvPhi(NumOp.FermionRedBlackGrid());
+	FermionField    MfMpvPhi(NumOp.FermionRedBlackGrid());
+	FermionField MpvMfMpvPhi(NumOp.FermionRedBlackGrid());
+	FermionField           Y(NumOp.FermionRedBlackGrid());
+
+	GaugeField   tmp(NumOp.GaugeGrid());
+
+	NumOp.ImportGauge(U);
+	DenOp.ImportGauge(U);
+
+	SchurDifferentiableOperator<Impl> VdagV(NumOp);
+	SchurDifferentiableOperator<Impl> MdagM(DenOp);
+
+	ConjugateGradientMultiShift<FermionField> msCG_V(param.MaxIter,PowerQuarter);
+	ConjugateGradientMultiShift<FermionField> msCG_M(param.MaxIter,PowerNegHalf);
+
+	msCG_V(VdagV,PhiOdd,MpvPhi_k,MpvPhi);
+	msCG_M(MdagM,MpvPhi,MfMpvPhi_k,MfMpvPhi);
+	msCG_V(VdagV,MfMpvPhi,MpvMfMpvPhi_k,MpvMfMpvPhi);
+
+	RealD ak;
+
+	dSdU = Zero();
+
+	// With these building blocks  
+	//  
+	//       dS/dU = 
+	//                 \sum_k -ak MfMpvPhi_k^dag      [ dM^dag M + M^dag dM ] MfMpvPhi_k         (1)
+	//             +   \sum_k -ak MpvMfMpvPhi_k^\dag  [ dV^dag V + V^dag dV ] MpvPhi_k           (2)
+	//                        -ak MpvPhi_k^dag        [ dV^dag V + V^dag dV ] MpvMfMpvPhi_k      (3)
+
+	//(1)
+	for(int k=0;k<n_f;k++){
+	  ak = PowerNegHalf.residues[k];
+	  MdagM.Mpc(MfMpvPhi_k[k],Y);
+	  MdagM.MpcDagDeriv(tmp , MfMpvPhi_k[k], Y );  dSdU=dSdU+ak*tmp;
+	  MdagM.MpcDeriv(tmp , Y, MfMpvPhi_k[k] );  dSdU=dSdU+ak*tmp;
+	}
+	
+	//(2)
+	//(3)
+	for(int k=0;k<n_pv;k++){
+
+          ak = PowerQuarter.residues[k];
+	  
+	  VdagV.Mpc(MpvPhi_k[k],Y);
+	  VdagV.MpcDagDeriv(tmp,MpvMfMpvPhi_k[k],Y); dSdU=dSdU+ak*tmp;
+	  VdagV.MpcDeriv   (tmp,Y,MpvMfMpvPhi_k[k]);  dSdU=dSdU+ak*tmp;     
+	  
+	  VdagV.Mpc(MpvMfMpvPhi_k[k],Y);                // V as we take Ydag 
+	  VdagV.MpcDeriv   (tmp,Y, MpvPhi_k[k]); dSdU=dSdU+ak*tmp;
+	  VdagV.MpcDagDeriv(tmp,MpvPhi_k[k], Y); dSdU=dSdU+ak*tmp;
+
+	}
+
+	//dSdU = Ta(dSdU);
+
+      };
     };
 
 NAMESPACE_END(Grid);

Grid/qcd/action/pseudofermion/PseudoFermion.h

@@ -26,7 +26,8 @@ See the full license in the file "LICENSE" in the top level distribution
 directory
 *************************************************************************************/
 /*  END LEGAL */
-#pragma once
+#ifndef QCD_PSEUDOFERMION_AGGREGATE_H
+#define QCD_PSEUDOFERMION_AGGREGATE_H
 
 // Rational functions
 #include <Grid/qcd/action/pseudofermion/Bounds.h>
@@ -39,14 +40,7 @@ directory
 #include <Grid/qcd/action/pseudofermion/OneFlavourRational.h>
 #include <Grid/qcd/action/pseudofermion/OneFlavourRationalRatio.h>
 #include <Grid/qcd/action/pseudofermion/OneFlavourEvenOddRational.h>
-#include <Grid/qcd/action/pseudofermion/GeneralEvenOddRationalRatio.h>
-#include <Grid/qcd/action/pseudofermion/GeneralEvenOddRationalRatioMixedPrec.h>
 #include <Grid/qcd/action/pseudofermion/OneFlavourEvenOddRationalRatio.h>
 #include <Grid/qcd/action/pseudofermion/ExactOneFlavourRatio.h>
-#include <Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourPseudoFermion.h>
-#include <Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourBosonPseudoFermion.h>
-#include <Grid/qcd/action/pseudofermion/DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion.h>
-
-
-
 
+#endif

Grid/qcd/action/pseudofermion/TwoFlavour.h

@@ -98,7 +98,6 @@ public:
 
     FermOp.ImportGauge(U);
     FermOp.Mdag(eta, Phi);
-    std::cout << GridLogMessage << "Pseudofermion action refresh " << norm2(eta) << std::endl;
   };
 
   //////////////////////////////////////////////////////

Grid/qcd/action/pseudofermion/TwoFlavourEvenOddRatio.h

@@ -50,8 +50,6 @@ NAMESPACE_BEGIN(Grid);
       FermionField PhiOdd;   // the pseudo fermion field for this trajectory
       FermionField PhiEven;  // the pseudo fermion field for this trajectory
 
-      virtual void refreshRestrict(FermionField &eta) {};
-      
     public:
       TwoFlavourEvenOddRatioPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
                                                 FermionOperator<Impl>  &_DenOp, 
@@ -62,8 +60,7 @@ NAMESPACE_BEGIN(Grid);
       TwoFlavourEvenOddRatioPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
                                                 FermionOperator<Impl>  &_DenOp, 
                                                 OperatorFunction<FermionField> & DS,
-                                                OperatorFunction<FermionField> & AS,
-						OperatorFunction<FermionField> & HS) :
+                                                OperatorFunction<FermionField> & AS, OperatorFunction<FermionField> & HS) :
       NumOp(_NumOp), 
       DenOp(_DenOp), 
       DerivativeSolver(DS), 
@@ -86,7 +83,16 @@ NAMESPACE_BEGIN(Grid);
 	return sstream.str();
       } 
 
+      
       virtual void refresh(const GaugeField &U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) {
+
+        // P(phi) = e^{- phi^dag Vpc (MpcdagMpc)^-1 Vpcdag phi}
+        //
+        // NumOp == V
+        // DenOp == M
+        //
+        // Take phi_o = Vpcdag^{-1} Mpcdag eta_o  ; eta_o = Mpcdag^{-1} Vpcdag Phi
+        //
         // P(eta_o) = e^{- eta_o^dag eta_o}
         //
         // e^{x^2/2 sig^2} => sig^2 = 0.5.
@@ -94,23 +100,12 @@ NAMESPACE_BEGIN(Grid);
         RealD scale = std::sqrt(0.5);
 
         FermionField eta    (NumOp.FermionGrid());
-        gaussian(pRNG,eta); eta = eta * scale;
-
-	refreshRestrict(eta); // Used by DDHMC
-	refresh(U,eta);
-      }
-	
-      void refresh(const GaugeField &U, const FermionField &eta) {
-        // P(phi) = e^{- phi^dag Vpc (MpcdagMpc)^-1 Vpcdag phi}
-        //
-        // NumOp == V
-        // DenOp == M
-        //
-        // Take phi_o = Vpcdag^{-1} Mpcdag eta_o  ; eta_o = Mpcdag^{-1} Vpcdag Phi
         FermionField etaOdd (NumOp.FermionRedBlackGrid());
         FermionField etaEven(NumOp.FermionRedBlackGrid());
         FermionField tmp    (NumOp.FermionRedBlackGrid());
 
+        gaussian(pRNG,eta);
+
         pickCheckerboard(Even,etaEven,eta);
         pickCheckerboard(Odd,etaOdd,eta);
 
@@ -130,9 +125,8 @@ NAMESPACE_BEGIN(Grid);
         DenOp.MooeeDag(etaEven,tmp);
         NumOp.MooeeInvDag(tmp,PhiEven);
 
-        //PhiOdd =PhiOdd*scale;
-        //PhiEven=PhiEven*scale;
-	std::cout << GridLogMessage<<" TwoFlavourEvenOddRatio Expect action to be "<<norm2(etaOdd) + norm2(etaEven)<<std::endl;
+        PhiOdd =PhiOdd*scale;
+        PhiEven=PhiEven*scale;
         
       };
 
@@ -167,8 +161,6 @@ NAMESPACE_BEGIN(Grid);
         DenOp.MooeeInvDag(X,Y);
         action = action + norm2(Y);
 
-	std::cout << GridLogMessage<<" TwoFlavourEvenOddRatio action is "<<action<<std::endl;
-
         return action;
       };
 
@@ -181,7 +173,7 @@ NAMESPACE_BEGIN(Grid);
 
         NumOp.ImportGauge(U);
         DenOp.ImportGauge(U);
-	
+
         SchurDifferentiableOperator<Impl> Mpc(DenOp);
         SchurDifferentiableOperator<Impl> Vpc(NumOp);
 
@@ -216,7 +208,7 @@ NAMESPACE_BEGIN(Grid);
         assert(DenOp.ConstEE() == 1);
 
         dSdU = -dSdU;
-
+        
       };
     };
 NAMESPACE_END(Grid);

Grid/qcd/action/pseudofermion/TwoFlavourRatio.h

@@ -99,7 +99,7 @@ public:
     NumOp.M(tmp,Phi);               // Vdag^-1 Mdag eta
 
     Phi=Phi*scale;
-    std::cout << GridLogMessage<<" TwoFlavourRatio Expect action to be "<<norm2(eta)*scale*scale<<std::endl;
+	
   };
 
   //////////////////////////////////////////////////////
@@ -121,7 +121,6 @@ public:
     DenOp.M(X,Y);                  // Y=  Mdag^-1 Vdag phi
 
     RealD action = norm2(Y);
-    std::cout << GridLogMessage<<" TwoFlavourRatio action is "<<action<<std::endl;
 
     return action;
   };

Grid/qcd/action/pseudofermion/TwoFlavourRatio4DPseudoFermion.h

@@ -1,197 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/pseudofermion/TwoFlavourRatio.h
-
-    Copyright (C) 2015
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-Author: Peter Boyle <peterboyle@Peters-MacBook-Pro-2.local>
-Author: paboyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-
-NAMESPACE_BEGIN(Grid);
-
-///////////////////////////////////////
-// Two flavour ratio
-///////////////////////////////////////
-template<class Impl>
-class TwoFlavourRatio4DPseudoFermionAction : public Action<typename Impl::GaugeField> {
-public:
-  INHERIT_IMPL_TYPES(Impl);
-
-private:
-  FermionOperator<Impl> & NumOp;// the basic operator
-  FermionOperator<Impl> & DenOp;// the basic operator
-
-  OperatorFunction<FermionField> &DerivativeSolver;
-  OperatorFunction<FermionField> &ActionSolver;
-
-  FermionField phi4; // the pseudo fermion field for this trajectory
-
-public:
-  TwoFlavourRatio4DPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
-				       FermionOperator<Impl>  &_DenOp, 
-				       OperatorFunction<FermionField> & DS,
-				       OperatorFunction<FermionField> & AS
-				       ) : NumOp(_NumOp),
-					   DenOp(_DenOp),
-					   DerivativeSolver(DS),
-					   ActionSolver(AS),
-					   phi4(_NumOp.GaugeGrid())
-  {};
-      
-  virtual std::string action_name(){return "TwoFlavourRatio4DPseudoFermionAction";}
-
-  virtual std::string LogParameters(){
-    std::stringstream sstream;
-    sstream << GridLogMessage << "["<<action_name()<<"] has no parameters" << std::endl;
-    return sstream.str();
-  }  
-      
-  virtual void refresh(const GaugeField &U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) {
-
-    // P(phi) = e^{- phi^dag (V^dag M^-dag)_11  (M^-1 V)_11 phi}
-    //
-    // NumOp == V
-    // DenOp == M
-    //
-    // Take phi = (V^{-1} M)_11 eta  ; eta = (M^{-1} V)_11 Phi
-    //
-    // P(eta) = e^{- eta^dag eta}
-    //
-    // e^{x^2/2 sig^2} => sig^2 = 0.5.
-    // 
-    // So eta should be of width sig = 1/sqrt(2) and must multiply by 0.707....
-    //
-    RealD scale = std::sqrt(0.5);
-
-    FermionField eta4(NumOp.GaugeGrid());
-    FermionField eta5(NumOp.FermionGrid());
-    FermionField tmp(NumOp.FermionGrid());
-    FermionField phi5(NumOp.FermionGrid());
-
-    gaussian(pRNG,eta4);
-    NumOp.ImportFourDimPseudoFermion(eta4,eta5);
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    MdagMLinearOperator<FermionOperator<Impl> ,FermionField> MdagMOp(NumOp);
-
-    DenOp.M(eta5,phi5);               // M eta
-    NumOp.Mdag(phi5,tmp);            // Vdag M eta
-    phi5 = Zero();
-    ActionSolver(MdagMOp,tmp,phi5);  // (VdagV)^-1 M eta = V^-1 Vdag^-1 Vdag M eta = V^-1 M eta
-    phi5=phi5*scale;
-
-    // Project to 4d
-    NumOp.ExportFourDimPseudoFermion(phi5,phi4);
-      
-  };
-
-  //////////////////////////////////////////////////////
-  // S = phi^dag (V^dag M^-dag)_11  (M^-1 V)_11 phi
-  //////////////////////////////////////////////////////
-  virtual RealD S(const GaugeField &U) {
-
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    FermionField Y4(NumOp.GaugeGrid());
-    FermionField X(NumOp.FermionGrid());
-    FermionField Y(NumOp.FermionGrid());
-    FermionField phi5(NumOp.FermionGrid());
-	
-    MdagMLinearOperator<FermionOperator<Impl> ,FermionField> MdagMOp(DenOp);
-
-    NumOp.ImportFourDimPseudoFermion(phi4,phi5);
-    NumOp.M(phi5,Y);              // Y= V phi
-    DenOp.Mdag(Y,X);              // X= Mdag V phi
-    Y=Zero();
-    ActionSolver(MdagMOp,X,Y);    // Y= (MdagM)^-1 Mdag Vdag phi = M^-1 V phi
-
-    NumOp.ExportFourDimPseudoFermion(Y,Y4);
-
-    RealD action = norm2(Y4);
-
-    return action;
-  };
-
-  //////////////////////////////////////////////////////
-  // dS/du = 2 Re phi^dag (V^dag M^-dag)_11  (M^-1 d V)_11  phi
-  //       - 2 Re phi^dag (dV^dag M^-dag)_11  (M^-1 dM M^-1 V)_11  phi
-  //////////////////////////////////////////////////////
-  virtual void deriv(const GaugeField &U,GaugeField & dSdU) {
-
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    MdagMLinearOperator<FermionOperator<Impl> ,FermionField> MdagMOp(DenOp);
-
-
-    FermionField  X(NumOp.FermionGrid());
-    FermionField  Y(NumOp.FermionGrid());
-    FermionField       phi(NumOp.FermionGrid());
-    FermionField      Vphi(NumOp.FermionGrid());
-    FermionField  MinvVphi(NumOp.FermionGrid());
-    FermionField      tmp4(NumOp.GaugeGrid());
-    FermionField  MdagInvMinvVphi(NumOp.FermionGrid());
-
-    GaugeField   force(NumOp.GaugeGrid());	
-
-    //Y=V phi
-    //X = (Mdag V phi
-    //Y = (Mdag M)^-1 Mdag V phi = M^-1 V Phi
-    NumOp.ImportFourDimPseudoFermion(phi4,phi);
-    NumOp.M(phi,Vphi);               //  V phi
-    DenOp.Mdag(Vphi,X);              // X=  Mdag V phi
-    Y=Zero();
-    DerivativeSolver(MdagMOp,X,MinvVphi);// M^-1 V phi
-
-    // Projects onto the physical space and back
-    NumOp.ExportFourDimPseudoFermion(MinvVphi,tmp4);
-    NumOp.ImportFourDimPseudoFermion(tmp4,Y);
-    
-    X=Zero();
-    DerivativeSolver(MdagMOp,Y,X);// X = (MdagM)^-1 proj M^-1 V phi
-    DenOp.M(X,MdagInvMinvVphi);
-    
-    // phi^dag (Vdag Mdag^-1) (M^-1 dV)  phi
-    NumOp.MDeriv(force ,MdagInvMinvVphi , phi, DaggerNo );  dSdU=force;
-  
-    // phi^dag (dVdag Mdag^-1) (M^-1 V)  phi
-    NumOp.MDeriv(force , phi, MdagInvMinvVphi ,DaggerYes  );  dSdU=dSdU+force;
-
-    //    - 2 Re phi^dag (dV^dag M^-dag)_11  (M^-1 dM M^-1 V)_11  phi
-    DenOp.MDeriv(force,MdagInvMinvVphi,MinvVphi,DaggerNo);   dSdU=dSdU-force;
-    DenOp.MDeriv(force,MinvVphi,MdagInvMinvVphi,DaggerYes);  dSdU=dSdU-force;
-
-    dSdU *= -1.0; 
-    //dSdU = - Ta(dSdU);
-    
-  };
-};
-
-NAMESPACE_END(Grid);
-
-

Grid/qcd/action/pseudofermion/TwoFlavourRatioEO4DPseudoFermion.h

@@ -1,203 +0,0 @@
-/*************************************************************************************
-
-    Grid physics library, www.github.com/paboyle/Grid 
-
-    Source file: ./lib/qcd/action/pseudofermion/TwoFlavourRatio.h
-
-    Copyright (C) 2015
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-Author: Peter Boyle <peterboyle@Peters-MacBook-Pro-2.local>
-Author: paboyle <paboyle@ph.ed.ac.uk>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-    See the full license in the file "LICENSE" in the top level distribution directory
-*************************************************************************************/
-/*  END LEGAL */
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-///////////////////////////////////////
-// Two flavour ratio
-///////////////////////////////////////
-template<class Impl>
-class TwoFlavourRatioEO4DPseudoFermionAction : public Action<typename Impl::GaugeField> {
-public:
-  INHERIT_IMPL_TYPES(Impl);
-
-private:
-  typedef FermionOperator<Impl> FermOp;
-  FermionOperator<Impl> & NumOp;// the basic operator
-  FermionOperator<Impl> & DenOp;// the basic operator
-
-  OperatorFunction<FermionField> &DerivativeSolver;
-  OperatorFunction<FermionField> &DerivativeDagSolver;
-  OperatorFunction<FermionField> &ActionSolver;
-  OperatorFunction<FermionField> &HeatbathSolver;
-
-  FermionField phi4; // the pseudo fermion field for this trajectory
-
-public:
-  TwoFlavourRatioEO4DPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
-					 FermionOperator<Impl>  &_DenOp, 
-					 OperatorFunction<FermionField> & DS,
-					 OperatorFunction<FermionField> & AS ) : 
-    TwoFlavourRatioEO4DPseudoFermionAction(_NumOp,_DenOp, DS,DS,AS,AS) {};
-  TwoFlavourRatioEO4DPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
-					 FermionOperator<Impl>  &_DenOp, 
-					 OperatorFunction<FermionField> & DS,
-					 OperatorFunction<FermionField> & DDS,
-					 OperatorFunction<FermionField> & AS,
-					 OperatorFunction<FermionField> & HS
-				       ) : NumOp(_NumOp),
-					   DenOp(_DenOp),
-					   DerivativeSolver(DS),
-					   DerivativeDagSolver(DDS),
-					   ActionSolver(AS),
-					   HeatbathSolver(HS),
-					   phi4(_NumOp.GaugeGrid())
-  {};
-      
-  virtual std::string action_name(){return "TwoFlavourRatioEO4DPseudoFermionAction";}
-
-  virtual std::string LogParameters(){
-    std::stringstream sstream;
-    sstream << GridLogMessage << "["<<action_name()<<"] has no parameters" << std::endl;
-    return sstream.str();
-  }  
-      
-  virtual void refresh(const GaugeField &U, GridSerialRNG &sRNG, GridParallelRNG& pRNG) {
-
-    // P(phi) = e^{- phi^dag (V^dag M^-dag)_11  (M^-1 V)_11 phi}
-    //
-    // NumOp == V
-    // DenOp == M
-    //
-    // Take phi = (V^{-1} M)_11 eta  ; eta = (M^{-1} V)_11 Phi
-    //
-    // P(eta) = e^{- eta^dag eta}
-    //
-    // e^{x^2/2 sig^2} => sig^2 = 0.5.
-    // 
-    // So eta should be of width sig = 1/sqrt(2) and must multiply by 0.707....
-    //
-    RealD scale = std::sqrt(0.5);
-
-    FermionField eta4(NumOp.GaugeGrid());
-    FermionField eta5(NumOp.FermionGrid());
-    FermionField tmp(NumOp.FermionGrid());
-    FermionField phi5(NumOp.FermionGrid());
-
-    gaussian(pRNG,eta4);
-    NumOp.ImportFourDimPseudoFermion(eta4,eta5);
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    SchurRedBlackDiagMooeeSolve<FermionField> PrecSolve(HeatbathSolver);
-
-    DenOp.M(eta5,tmp);               // M eta
-    PrecSolve(NumOp,tmp,phi5);  // phi = V^-1 M eta
-    phi5=phi5*scale;
-    std::cout << GridLogMessage << "4d pf refresh "<< norm2(phi5)<<"\n";
-    // Project to 4d
-    NumOp.ExportFourDimPseudoFermion(phi5,phi4);
-      
-  };
-
-  //////////////////////////////////////////////////////
-  // S = phi^dag (V^dag M^-dag)_11  (M^-1 V)_11 phi
-  //////////////////////////////////////////////////////
-  virtual RealD S(const GaugeField &U) {
-
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    FermionField Y4(NumOp.GaugeGrid());
-    FermionField X(NumOp.FermionGrid());
-    FermionField Y(NumOp.FermionGrid());
-    FermionField phi5(NumOp.FermionGrid());
-	
-    MdagMLinearOperator<FermionOperator<Impl> ,FermionField> MdagMOp(DenOp);
-    SchurRedBlackDiagMooeeSolve<FermionField> PrecSolve(ActionSolver);
-
-    NumOp.ImportFourDimPseudoFermion(phi4,phi5);
-    NumOp.M(phi5,X);              // X= V phi
-    PrecSolve(DenOp,X,Y);    // Y= (MdagM)^-1 Mdag Vdag phi = M^-1 V phi
-    NumOp.ExportFourDimPseudoFermion(Y,Y4);
-
-    RealD action = norm2(Y4);
-
-    return action;
-  };
-
-  //////////////////////////////////////////////////////
-  // dS/du = 2 Re phi^dag (V^dag M^-dag)_11  (M^-1 d V)_11  phi
-  //       - 2 Re phi^dag (dV^dag M^-dag)_11  (M^-1 dM M^-1 V)_11  phi
-  //////////////////////////////////////////////////////
-  virtual void deriv(const GaugeField &U,GaugeField & dSdU) {
-
-    NumOp.ImportGauge(U);
-    DenOp.ImportGauge(U);
-
-    FermionField  X(NumOp.FermionGrid());
-    FermionField  Y(NumOp.FermionGrid());
-    FermionField       phi(NumOp.FermionGrid());
-    FermionField      Vphi(NumOp.FermionGrid());
-    FermionField  MinvVphi(NumOp.FermionGrid());
-    FermionField      tmp4(NumOp.GaugeGrid());
-    FermionField  MdagInvMinvVphi(NumOp.FermionGrid());
-
-    GaugeField   force(NumOp.GaugeGrid());	
-
-    //Y=V phi
-    //X = (Mdag V phi
-    //Y = (Mdag M)^-1 Mdag V phi = M^-1 V Phi
-    NumOp.ImportFourDimPseudoFermion(phi4,phi);
-    NumOp.M(phi,Vphi);               //  V phi
-    SchurRedBlackDiagMooeeSolve<FermionField> PrecSolve(DerivativeSolver);
-    PrecSolve(DenOp,Vphi,MinvVphi);// M^-1 V phi
-    std::cout << GridLogMessage << "4d deriv solve "<< norm2(MinvVphi)<<"\n";
-
-    // Projects onto the physical space and back
-    NumOp.ExportFourDimPseudoFermion(MinvVphi,tmp4);
-    NumOp.ImportFourDimPseudoFermion(tmp4,Y);
-
-    SchurRedBlackDiagMooeeDagSolve<FermionField> PrecDagSolve(DerivativeDagSolver);
-    // X = proj M^-dag V phi
-    // Need an adjoint solve
-    PrecDagSolve(DenOp,Y,MdagInvMinvVphi);
-    std::cout << GridLogMessage << "4d deriv solve dag "<< norm2(MdagInvMinvVphi)<<"\n";
-    
-    // phi^dag (Vdag Mdag^-1) (M^-1 dV)  phi
-    NumOp.MDeriv(force ,MdagInvMinvVphi , phi, DaggerNo );  dSdU=force;
-  
-    // phi^dag (dVdag Mdag^-1) (M^-1 V)  phi
-    NumOp.MDeriv(force , phi, MdagInvMinvVphi ,DaggerYes  );  dSdU=dSdU+force;
-
-    //    - 2 Re phi^dag (dV^dag M^-dag)_11  (M^-1 dM M^-1 V)_11  phi
-    DenOp.MDeriv(force,MdagInvMinvVphi,MinvVphi,DaggerNo);   dSdU=dSdU-force;
-    DenOp.MDeriv(force,MinvVphi,MdagInvMinvVphi,DaggerYes);  dSdU=dSdU-force;
-
-    dSdU *= -1.0; 
-    //dSdU = - Ta(dSdU);
-    
-  };
-};
-
-NAMESPACE_END(Grid);
-
-

Grid/qcd/gparity/Gparity.h

@@ -1,6 +0,0 @@
-#ifndef GRID_GPARITY_H_
-#define GRID_GPARITY_H_
-
-#include<Grid/qcd/gparity/GparityFlavour.h>
-
-#endif

Grid/qcd/gparity/GparityFlavour.cc

@@ -1,34 +0,0 @@
-#include <Grid/Grid.h>
-
-NAMESPACE_BEGIN(Grid);
-
-const std::array<const GparityFlavour, 3> GparityFlavour::sigma_mu = {{
-    GparityFlavour(GparityFlavour::Algebra::SigmaX),
-    GparityFlavour(GparityFlavour::Algebra::SigmaY),
-    GparityFlavour(GparityFlavour::Algebra::SigmaZ)
-    }};
-
-const std::array<const GparityFlavour, 6> GparityFlavour::sigma_all = {{
-  GparityFlavour(GparityFlavour::Algebra::Identity),
-  GparityFlavour(GparityFlavour::Algebra::SigmaX),
-  GparityFlavour(GparityFlavour::Algebra::SigmaY),
-  GparityFlavour(GparityFlavour::Algebra::SigmaZ),
-  GparityFlavour(GparityFlavour::Algebra::ProjPlus),
-  GparityFlavour(GparityFlavour::Algebra::ProjMinus)
-}};
-
-const std::array<const char *, GparityFlavour::nSigma> GparityFlavour::name = {{
-    "SigmaX",
-    "MinusSigmaX",
-    "SigmaY",
-    "MinusSigmaY",
-    "SigmaZ",
-    "MinusSigmaZ",
-    "Identity",
-    "MinusIdentity",
-    "ProjPlus",
-    "MinusProjPlus",
-    "ProjMinus",
-    "MinusProjMinus"}};
-
-NAMESPACE_END(Grid);

Grid/qcd/gparity/GparityFlavour.h

@@ -1,475 +0,0 @@
-#ifndef GRID_QCD_GPARITY_FLAVOUR_H
-#define GRID_QCD_GPARITY_FLAVOUR_H
-
-//Support for flavour-matrix operations acting on the G-parity flavour index
-
-#include <array>
-
-NAMESPACE_BEGIN(Grid);
-
-class GparityFlavour {
-  public:
-    GRID_SERIALIZABLE_ENUM(Algebra, undef,
-                           SigmaX, 0,
-			   MinusSigmaX, 1,
-                           SigmaY, 2,
-			   MinusSigmaY, 3,
-                           SigmaZ, 4,
-			   MinusSigmaZ, 5,
-			   Identity, 6,
-			   MinusIdentity, 7,
-			   ProjPlus, 8,
-			   MinusProjPlus, 9,
-			   ProjMinus, 10,
-			   MinusProjMinus, 11
-			   );
-    static constexpr unsigned int nSigma = 12;
-    static const std::array<const char *, nSigma>                name;
-    static const std::array<const GparityFlavour, 3>             sigma_mu;
-    static const std::array<const GparityFlavour, 6>            sigma_all;
-    Algebra                                                      g;
-  public:
-  accelerator GparityFlavour(Algebra initg): g(initg) {}  
-};
-
-
-
-// 0 1  x   vector
-// 1 0
-template<class vtype>
-accelerator_inline void multFlavourSigmaX(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = rhs(1);
-  ret(1) = rhs(0);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourSigmaX(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = rhs(1,0);
-  ret(0,1) = rhs(1,1);
-  ret(1,0) = rhs(0,0);
-  ret(1,1) = rhs(0,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourSigmaX(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = rhs(0,1);
-  ret(0,1) = rhs(0,0);
-  ret(1,0) = rhs(1,1);
-  ret(1,1) = rhs(1,0);
-};
-
-
-template<class vtype>
-accelerator_inline void multFlavourMinusSigmaX(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = -rhs(1);
-  ret(1) = -rhs(0);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourMinusSigmaX(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -rhs(1,0);
-  ret(0,1) = -rhs(1,1);
-  ret(1,0) = -rhs(0,0);
-  ret(1,1) = -rhs(0,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourMinusSigmaX(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -rhs(0,1);
-  ret(0,1) = -rhs(0,0);
-  ret(1,0) = -rhs(1,1);
-  ret(1,1) = -rhs(1,0);
-};
-
-
-
-
-
-// 0 -i  x   vector
-// i 0
-template<class vtype>
-accelerator_inline void multFlavourSigmaY(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = timesMinusI(rhs(1));
-  ret(1) = timesI(rhs(0));
-};
-template<class vtype>
-accelerator_inline void lmultFlavourSigmaY(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = timesMinusI(rhs(1,0));
-  ret(0,1) = timesMinusI(rhs(1,1));
-  ret(1,0) = timesI(rhs(0,0));
-  ret(1,1) = timesI(rhs(0,1));
-};
-template<class vtype>
-accelerator_inline void rmultFlavourSigmaY(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = timesI(rhs(0,1));
-  ret(0,1) = timesMinusI(rhs(0,0));
-  ret(1,0) = timesI(rhs(1,1));
-  ret(1,1) = timesMinusI(rhs(1,0));
-};
-
-template<class vtype>
-accelerator_inline void multFlavourMinusSigmaY(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = timesI(rhs(1));
-  ret(1) = timesMinusI(rhs(0));
-};
-template<class vtype>
-accelerator_inline void lmultFlavourMinusSigmaY(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = timesI(rhs(1,0));
-  ret(0,1) = timesI(rhs(1,1));
-  ret(1,0) = timesMinusI(rhs(0,0));
-  ret(1,1) = timesMinusI(rhs(0,1));
-};
-template<class vtype>
-accelerator_inline void rmultFlavourMinusSigmaY(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = timesMinusI(rhs(0,1));
-  ret(0,1) = timesI(rhs(0,0));
-  ret(1,0) = timesMinusI(rhs(1,1));
-  ret(1,1) = timesI(rhs(1,0));
-};
-
-
-
-
-
-// 1 0  x   vector
-// 0 -1
-template<class vtype>
-accelerator_inline void multFlavourSigmaZ(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = rhs(0);
-  ret(1) = -rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourSigmaZ(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = rhs(0,0);
-  ret(0,1) = rhs(0,1);
-  ret(1,0) = -rhs(1,0);
-  ret(1,1) = -rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourSigmaZ(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = rhs(0,0);
-  ret(0,1) = -rhs(0,1);
-  ret(1,0) = rhs(1,0);
-  ret(1,1) = -rhs(1,1);
-};
-
-
-template<class vtype>
-accelerator_inline void multFlavourMinusSigmaZ(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = -rhs(0);
-  ret(1) = rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourMinusSigmaZ(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -rhs(0,0);
-  ret(0,1) = -rhs(0,1);
-  ret(1,0) = rhs(1,0);
-  ret(1,1) = rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourMinusSigmaZ(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -rhs(0,0);
-  ret(0,1) = rhs(0,1);
-  ret(1,0) = -rhs(1,0);
-  ret(1,1) = rhs(1,1);
-};
-
-
-
-
-
-
-template<class vtype>
-accelerator_inline void multFlavourIdentity(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = rhs(0);
-  ret(1) = rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourIdentity(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = rhs(0,0);
-  ret(0,1) = rhs(0,1);
-  ret(1,0) = rhs(1,0);
-  ret(1,1) = rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourIdentity(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = rhs(0,0);
-  ret(0,1) = rhs(0,1);
-  ret(1,0) = rhs(1,0);
-  ret(1,1) = rhs(1,1);
-};
-
-template<class vtype>
-accelerator_inline void multFlavourMinusIdentity(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = -rhs(0);
-  ret(1) = -rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourMinusIdentity(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -rhs(0,0);
-  ret(0,1) = -rhs(0,1);
-  ret(1,0) = -rhs(1,0);
-  ret(1,1) = -rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourMinusIdentity(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -rhs(0,0);
-  ret(0,1) = -rhs(0,1);
-  ret(1,0) = -rhs(1,0);
-  ret(1,1) = -rhs(1,1);
-};
-
-
-
-
-
-//G-parity flavour projection 1/2(1+\sigma_2)
-//1 -i
-//i  1
-template<class vtype>
-accelerator_inline void multFlavourProjPlus(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = 0.5*rhs(0) + 0.5*timesMinusI(rhs(1));
-  ret(1) = 0.5*timesI(rhs(0)) + 0.5*rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourProjPlus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = 0.5*rhs(0,0) + 0.5*timesMinusI(rhs(1,0));
-  ret(0,1) = 0.5*rhs(0,1) + 0.5*timesMinusI(rhs(1,1));
-  ret(1,0) = 0.5*timesI(rhs(0,0)) + 0.5*rhs(1,0);
-  ret(1,1) = 0.5*timesI(rhs(0,1)) + 0.5*rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourProjPlus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = 0.5*rhs(0,0) + 0.5*timesI(rhs(0,1));
-  ret(0,1) = 0.5*timesMinusI(rhs(0,0)) + 0.5*rhs(0,1);
-  ret(1,0) = 0.5*rhs(1,0) + 0.5*timesI(rhs(1,1));
-  ret(1,1) = 0.5*timesMinusI(rhs(1,0)) + 0.5*rhs(1,1);
-};
-
-
-template<class vtype>
-accelerator_inline void multFlavourMinusProjPlus(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = -0.5*rhs(0) + 0.5*timesI(rhs(1));
-  ret(1) = 0.5*timesMinusI(rhs(0)) - 0.5*rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourMinusProjPlus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -0.5*rhs(0,0) + 0.5*timesI(rhs(1,0));
-  ret(0,1) = -0.5*rhs(0,1) + 0.5*timesI(rhs(1,1));
-  ret(1,0) = 0.5*timesMinusI(rhs(0,0)) - 0.5*rhs(1,0);
-  ret(1,1) = 0.5*timesMinusI(rhs(0,1)) - 0.5*rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourMinusProjPlus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -0.5*rhs(0,0) + 0.5*timesMinusI(rhs(0,1));
-  ret(0,1) = 0.5*timesI(rhs(0,0)) - 0.5*rhs(0,1);
-  ret(1,0) = -0.5*rhs(1,0) + 0.5*timesMinusI(rhs(1,1));
-  ret(1,1) = 0.5*timesI(rhs(1,0)) - 0.5*rhs(1,1);
-};
-
-
-
-
-
-//G-parity flavour projection 1/2(1-\sigma_2)
-//1 i
-//-i  1
-template<class vtype>
-accelerator_inline void multFlavourProjMinus(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = 0.5*rhs(0) + 0.5*timesI(rhs(1));
-  ret(1) = 0.5*timesMinusI(rhs(0)) + 0.5*rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourProjMinus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = 0.5*rhs(0,0) + 0.5*timesI(rhs(1,0));
-  ret(0,1) = 0.5*rhs(0,1) + 0.5*timesI(rhs(1,1));
-  ret(1,0) = 0.5*timesMinusI(rhs(0,0)) + 0.5*rhs(1,0);
-  ret(1,1) = 0.5*timesMinusI(rhs(0,1)) + 0.5*rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourProjMinus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = 0.5*rhs(0,0) + 0.5*timesMinusI(rhs(0,1));
-  ret(0,1) = 0.5*timesI(rhs(0,0)) + 0.5*rhs(0,1);
-  ret(1,0) = 0.5*rhs(1,0) + 0.5*timesMinusI(rhs(1,1));
-  ret(1,1) = 0.5*timesI(rhs(1,0)) + 0.5*rhs(1,1);
-};
-
-
-template<class vtype>
-accelerator_inline void multFlavourMinusProjMinus(iVector<vtype, Ngp> &ret, const iVector<vtype, Ngp> &rhs)
-{
-  ret(0) = -0.5*rhs(0) + 0.5*timesMinusI(rhs(1));
-  ret(1) = 0.5*timesI(rhs(0)) - 0.5*rhs(1);
-};
-template<class vtype>
-accelerator_inline void lmultFlavourMinusProjMinus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -0.5*rhs(0,0) + 0.5*timesMinusI(rhs(1,0));
-  ret(0,1) = -0.5*rhs(0,1) + 0.5*timesMinusI(rhs(1,1));
-  ret(1,0) = 0.5*timesI(rhs(0,0)) - 0.5*rhs(1,0);
-  ret(1,1) = 0.5*timesI(rhs(0,1)) - 0.5*rhs(1,1);
-};
-template<class vtype>
-accelerator_inline void rmultFlavourMinusProjMinus(iMatrix<vtype, Ngp> &ret, const iMatrix<vtype, Ngp> &rhs)
-{
-  ret(0,0) = -0.5*rhs(0,0) + 0.5*timesI(rhs(0,1));
-  ret(0,1) = 0.5*timesMinusI(rhs(0,0)) - 0.5*rhs(0,1);
-  ret(1,0) = -0.5*rhs(1,0) + 0.5*timesI(rhs(1,1));
-  ret(1,1) = 0.5*timesMinusI(rhs(1,0)) - 0.5*rhs(1,1);
-};
-
-
-
-
-
-
-
-
-
-
-template<class vtype> 
-accelerator_inline auto operator*(const GparityFlavour &G, const iVector<vtype, Ngp> &arg)
-->typename std::enable_if<matchGridTensorIndex<iVector<vtype, Ngp>, GparityFlavourTensorIndex>::value, iVector<vtype, Ngp>>::type
-{
-  iVector<vtype, Ngp> ret;
-
-  switch (G.g) 
-  {
-  case GparityFlavour::Algebra::SigmaX:
-    multFlavourSigmaX(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaX:
-    multFlavourMinusSigmaX(ret, arg); break;
-  case GparityFlavour::Algebra::SigmaY:
-    multFlavourSigmaY(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaY:
-    multFlavourMinusSigmaY(ret, arg); break;
-  case GparityFlavour::Algebra::SigmaZ:
-    multFlavourSigmaZ(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaZ:
-    multFlavourMinusSigmaZ(ret, arg); break;
-  case GparityFlavour::Algebra::Identity:
-    multFlavourIdentity(ret, arg); break;
-  case GparityFlavour::Algebra::MinusIdentity:
-    multFlavourMinusIdentity(ret, arg); break;
-  case GparityFlavour::Algebra::ProjPlus:
-    multFlavourProjPlus(ret, arg); break;
-  case GparityFlavour::Algebra::MinusProjPlus:
-    multFlavourMinusProjPlus(ret, arg); break;
-  case GparityFlavour::Algebra::ProjMinus:
-    multFlavourProjMinus(ret, arg); break;
-  case GparityFlavour::Algebra::MinusProjMinus:
-    multFlavourMinusProjMinus(ret, arg); break;
-  default: assert(0);
-  }
- 
-  return ret;
-}
-
-template<class vtype> 
-accelerator_inline auto operator*(const GparityFlavour &G, const iMatrix<vtype, Ngp> &arg)
-->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype, Ngp>, GparityFlavourTensorIndex>::value, iMatrix<vtype, Ngp>>::type
-{
-  iMatrix<vtype, Ngp> ret;
-
-  switch (G.g) 
-  {
-  case GparityFlavour::Algebra::SigmaX:
-    lmultFlavourSigmaX(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaX:
-    lmultFlavourMinusSigmaX(ret, arg); break;
-  case GparityFlavour::Algebra::SigmaY:
-    lmultFlavourSigmaY(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaY:
-    lmultFlavourMinusSigmaY(ret, arg); break;
-  case GparityFlavour::Algebra::SigmaZ:
-    lmultFlavourSigmaZ(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaZ:
-    lmultFlavourMinusSigmaZ(ret, arg); break;
-  case GparityFlavour::Algebra::Identity:
-    lmultFlavourIdentity(ret, arg); break;
-  case GparityFlavour::Algebra::MinusIdentity:
-    lmultFlavourMinusIdentity(ret, arg); break;
-  case GparityFlavour::Algebra::ProjPlus:
-    lmultFlavourProjPlus(ret, arg); break;
-  case GparityFlavour::Algebra::MinusProjPlus:
-    lmultFlavourMinusProjPlus(ret, arg); break;
-  case GparityFlavour::Algebra::ProjMinus:
-    lmultFlavourProjMinus(ret, arg); break;
-  case GparityFlavour::Algebra::MinusProjMinus:
-    lmultFlavourMinusProjMinus(ret, arg); break;  
-  default: assert(0);
-  }
-  
-  return ret;
-}
-
-template<class vtype> 
-accelerator_inline auto operator*(const iMatrix<vtype, Ngp> &arg, const GparityFlavour &G)
-->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype, Ngp>, GparityFlavourTensorIndex>::value, iMatrix<vtype, Ngp>>::type
-{
-  iMatrix<vtype, Ngp> ret;
-
-  switch (G.g) 
-  {
-  case GparityFlavour::Algebra::SigmaX:
-    rmultFlavourSigmaX(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaX:
-    rmultFlavourMinusSigmaX(ret, arg); break;
-  case GparityFlavour::Algebra::SigmaY:
-    rmultFlavourSigmaY(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaY:
-    rmultFlavourMinusSigmaY(ret, arg); break;
-  case GparityFlavour::Algebra::SigmaZ:
-    rmultFlavourSigmaZ(ret, arg); break;
-  case GparityFlavour::Algebra::MinusSigmaZ:
-    rmultFlavourMinusSigmaZ(ret, arg); break;
-  case GparityFlavour::Algebra::Identity:
-    rmultFlavourIdentity(ret, arg); break;
-  case GparityFlavour::Algebra::MinusIdentity:
-    rmultFlavourMinusIdentity(ret, arg); break;
-  case GparityFlavour::Algebra::ProjPlus:
-    rmultFlavourProjPlus(ret, arg); break;
-  case GparityFlavour::Algebra::MinusProjPlus:
-    rmultFlavourMinusProjPlus(ret, arg); break;
-  case GparityFlavour::Algebra::ProjMinus:
-    rmultFlavourProjMinus(ret, arg); break;
-  case GparityFlavour::Algebra::MinusProjMinus:
-    rmultFlavourMinusProjMinus(ret, arg); break;
-  default: assert(0);
-  }
-
-  return ret;
-}
-
-NAMESPACE_END(Grid);
-
-#endif // include guard

Grid/qcd/hmc/GenericHMCrunner.h

@@ -129,10 +129,18 @@ public:
     Runner(S);
   }
 
-  //Use the checkpointer to initialize the RNGs and the gauge field, writing the resulting gauge field into U.
-  //This is called automatically by Run but may be useful elsewhere, e.g. for integrator tuning experiments
-  void initializeGaugeFieldAndRNGs(Field &U){
-    if(!Resources.haveRNGs()) Resources.AddRNGs();
+  //////////////////////////////////////////////////////////////////
+
+private:
+  template <class SmearingPolicy>
+  void Runner(SmearingPolicy &Smearing) {
+    auto UGrid = Resources.GetCartesian();
+    Resources.AddRNGs();
+    Field U(UGrid);
+
+    // Can move this outside?
+    typedef IntegratorType<SmearingPolicy> TheIntegrator;
+    TheIntegrator MDynamics(UGrid, Parameters.MD, TheAction, Smearing);
 
     if (Parameters.StartingType == "HotStart") {
       // Hot start
@@ -159,25 +167,6 @@ public:
 	<< "Valid [HotStart, ColdStart, TepidStart, CheckpointStart]\n";
       exit(1);
     }
-  }
-
-
-
-  //////////////////////////////////////////////////////////////////
-
-private:
-  template <class SmearingPolicy>
-  void Runner(SmearingPolicy &Smearing) {
-    auto UGrid = Resources.GetCartesian();
-    Field U(UGrid);
-
-    initializeGaugeFieldAndRNGs(U);
-
-    typedef IntegratorType<SmearingPolicy> TheIntegrator;
-    TheIntegrator MDynamics(UGrid, Parameters.MD, TheAction, Smearing);
-
-    // Sets the momentum filter
-    MDynamics.setMomentumFilter(*(Resources.GetMomentumFilter()));
 
     Smearing.set_Field(U);
 

Grid/qcd/hmc/HMC.h

@@ -34,7 +34,6 @@ directory
 			    * @brief Classes for Hybrid Monte Carlo update
 			    *
 			    * @author Guido Cossu
-			    * @author Peter Boyle
 			    */
 			   //--------------------------------------------------------------------
 #pragma once
@@ -116,17 +115,22 @@ private:
 
     random(sRNG, rn_test);
 
-    std::cout << GridLogHMC << "--------------------------------------------------\n";
-    std::cout << GridLogHMC << "exp(-dH) = " << prob << "  Random = " << rn_test << "\n";
-    std::cout << GridLogHMC << "Acc. Probability = " << ((prob < 1.0) ? prob : 1.0) << "\n";
+    std::cout << GridLogMessage
+              << "--------------------------------------------------\n";
+    std::cout << GridLogMessage << "exp(-dH) = " << prob
+              << "  Random = " << rn_test << "\n";
+    std::cout << GridLogMessage
+              << "Acc. Probability = " << ((prob < 1.0) ? prob : 1.0) << "\n";
 
     if ((prob > 1.0) || (rn_test <= prob)) {  // accepted
-      std::cout << GridLogHMC << "Metropolis_test -- ACCEPTED\n";
-      std::cout << GridLogHMC << "--------------------------------------------------\n";
+      std::cout << GridLogMessage << "Metropolis_test -- ACCEPTED\n";
+      std::cout << GridLogMessage
+                << "--------------------------------------------------\n";
       return true;
     } else {  // rejected
-      std::cout << GridLogHMC << "Metropolis_test -- REJECTED\n";
-      std::cout << GridLogHMC << "--------------------------------------------------\n";
+      std::cout << GridLogMessage << "Metropolis_test -- REJECTED\n";
+      std::cout << GridLogMessage
+                << "--------------------------------------------------\n";
       return false;
     }
   }
@@ -135,68 +139,19 @@ private:
   // Evolution
   /////////////////////////////////////////////////////////
   RealD evolve_hmc_step(Field &U) {
+    TheIntegrator.refresh(U, sRNG, pRNG);  // set U and initialize P and phi's
 
-    GridBase *Grid = U.Grid();
-
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    // Mainly for DDHMC perform a random translation of U modulo volume
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
-    std::cout << GridLogMessage << "Random shifting gauge field by [";
-    for(int d=0;d<Grid->Nd();d++) {
-
-      int L = Grid->GlobalDimensions()[d];
-
-      RealD rn_uniform;  random(sRNG, rn_uniform);
-
-      int shift = (int) (rn_uniform*L);
-
-      std::cout << shift;
-      if(d<Grid->Nd()-1) std::cout <<",";
-      else               std::cout <<"]\n";
-      
-      U = Cshift(U,d,shift);
-    }
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
-
-    TheIntegrator.reset_timer();
-    
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    // set U and initialize P and phi's
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
-    std::cout << GridLogMessage << "Refresh momenta and pseudofermions";
-    TheIntegrator.refresh(U, sRNG, pRNG);  
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
-
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    // initial state action
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
-    std::cout << GridLogMessage << "Compute initial action";
-    RealD H0 = TheIntegrator.S(U);  
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
+    RealD H0 = TheIntegrator.S(U);  // initial state action
 
     std::streamsize current_precision = std::cout.precision();
     std::cout.precision(15);
-    std::cout << GridLogHMC << "Total H before trajectory = " << H0 << "\n";
+    std::cout << GridLogMessage << "Total H before trajectory = " << H0 << "\n";
     std::cout.precision(current_precision);
 
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
-    std::cout << GridLogMessage << " Molecular Dynamics evolution ";
     TheIntegrator.integrate(U);
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
 
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    // updated state action
-    //////////////////////////////////////////////////////////////////////////////////////////////////////
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
-    std::cout << GridLogMessage << "Compute final action";
-    RealD H1 = TheIntegrator.S(U);  
-    std::cout << GridLogMessage << "--------------------------------------------------\n";
+    RealD H1 = TheIntegrator.S(U);  // updated state action
 
-
-    
     ///////////////////////////////////////////////////////////
     if(0){
       std::cout << "------------------------- Reversibility test" << std::endl;
@@ -208,16 +163,17 @@ private:
     }
     ///////////////////////////////////////////////////////////
 
+
     std::cout.precision(15);
-
-    std::cout << GridLogHMC << "--------------------------------------------------\n";
-    std::cout << GridLogHMC << "Total H after trajectory  = " << H1 << "  dH = " << H1 - H0 << "\n";
-    std::cout << GridLogHMC << "--------------------------------------------------\n";
-
+    std::cout << GridLogMessage << "Total H after trajectory  = " << H1
+	      << "  dH = " << H1 - H0 << "\n";
     std::cout.precision(current_precision);
     
     return (H1 - H0);
   }
+  
+
+  
 
 public:
   /////////////////////////////////////////
@@ -239,13 +195,10 @@ public:
 
     // Actual updates (evolve a copy Ucopy then copy back eventually)
     unsigned int FinalTrajectory = Params.Trajectories + Params.NoMetropolisUntil + Params.StartTrajectory;
-
     for (int traj = Params.StartTrajectory; traj < FinalTrajectory; ++traj) {
-
-      std::cout << GridLogHMC << "-- # Trajectory = " << traj << "\n";
-
+      std::cout << GridLogMessage << "-- # Trajectory = " << traj << "\n";
       if (traj < Params.StartTrajectory + Params.NoMetropolisUntil) {
-      	std::cout << GridLogHMC << "-- Thermalization" << std::endl;
+      	std::cout << GridLogMessage << "-- Thermalization" << std::endl;
       }
       
       double t0=usecond();
@@ -254,19 +207,20 @@ public:
       DeltaH = evolve_hmc_step(Ucopy);
       // Metropolis-Hastings test
       bool accept = true;
-      if (Params.MetropolisTest && traj >= Params.StartTrajectory + Params.NoMetropolisUntil) {
+      if (traj >= Params.StartTrajectory + Params.NoMetropolisUntil) {
         accept = metropolis_test(DeltaH);
       } else {
-      	std::cout << GridLogHMC << "Skipping Metropolis test" << std::endl;
+      	std::cout << GridLogMessage << "Skipping Metropolis test" << std::endl;
       }
 
       if (accept)
         Ucur = Ucopy; 
       
+     
+      
       double t1=usecond();
-      std::cout << GridLogHMC << "Total time for trajectory (s): " << (t1-t0)/1e6 << std::endl;
+      std::cout << GridLogMessage << "Total time for trajectory (s): " << (t1-t0)/1e6 << std::endl;
 
-      TheIntegrator.print_timer();
 
       for (int obs = 0; obs < Observables.size(); obs++) {
       	std::cout << GridLogDebug << "Observables # " << obs << std::endl;
@@ -274,7 +228,7 @@ public:
       	std::cout << GridLogDebug << "Observables pointer " << Observables[obs] << std::endl;
         Observables[obs]->TrajectoryComplete(traj + 1, Ucur, sRNG, pRNG);
       }
-      std::cout << GridLogHMC << ":::::::::::::::::::::::::::::::::::::::::::" << std::endl;
+      std::cout << GridLogMessage << ":::::::::::::::::::::::::::::::::::::::::::" << std::endl;
     }
   }
 

Grid/qcd/hmc/HMCResourceManager.h

@@ -72,8 +72,6 @@ class HMCResourceManager {
   typedef HMCModuleBase< BaseHmcCheckpointer<ImplementationPolicy> > CheckpointerBaseModule;
   typedef HMCModuleBase< HmcObservable<typename ImplementationPolicy::Field> > ObservableBaseModule;
   typedef ActionModuleBase< Action<typename ImplementationPolicy::Field>, GridModule > ActionBaseModule;
-  typedef typename ImplementationPolicy::Field MomentaField;
-  typedef typename ImplementationPolicy::Field Field;  
 
   // Named storage for grid pairs (std + red-black)
   std::unordered_map<std::string, GridModule> Grids;
@@ -82,9 +80,6 @@ class HMCResourceManager {
   // SmearingModule<ImplementationPolicy> Smearing;
   std::unique_ptr<CheckpointerBaseModule> CP;
 
-  // Momentum filter
-  std::unique_ptr<MomentumFilterBase<typename ImplementationPolicy::Field> > Filter;
-  
   // A vector of HmcObservable modules
   std::vector<std::unique_ptr<ObservableBaseModule> > ObservablesList;
 
@@ -95,7 +90,6 @@ class HMCResourceManager {
 
   bool have_RNG;
   bool have_CheckPointer;
-  bool have_Filter;
 
   // NOTE: operator << is not overloaded for std::vector<string> 
   // so this function is necessary
@@ -107,7 +101,7 @@ class HMCResourceManager {
 
 
 public:
-  HMCResourceManager() : have_RNG(false), have_CheckPointer(false), have_Filter(false) {}
+  HMCResourceManager() : have_RNG(false), have_CheckPointer(false) {}
 
   template <class ReaderClass, class vector_type = vComplex >
   void initialize(ReaderClass &Read){
@@ -135,7 +129,6 @@ public:
     RNGModuleParameters RNGpar(Read);
     SetRNGSeeds(RNGpar);
 
-  
     // Observables
     auto &ObsFactory = HMC_ObservablesModuleFactory<observable_string, typename ImplementationPolicy::Field, ReaderClass>::getInstance(); 
     Read.push(observable_string);// here must check if existing...
@@ -215,16 +208,6 @@ public:
     AddGrid(s, Mod);
   }
 
-  void SetMomentumFilter( MomentumFilterBase<typename ImplementationPolicy::Field> * MomFilter) {
-    assert(have_Filter==false);
-    Filter = std::unique_ptr<MomentumFilterBase<typename ImplementationPolicy::Field> >(MomFilter);
-    have_Filter = true;
-  }
-  MomentumFilterBase<typename ImplementationPolicy::Field> *GetMomentumFilter(void) {
-    if ( !have_Filter)
-      SetMomentumFilter(new MomentumFilterNone<typename ImplementationPolicy::Field>());
-    return Filter.get();
-  }
 
   GridCartesian* GetCartesian(std::string s = "") {
     if (s.empty()) s = Grids.begin()->first;
@@ -243,9 +226,6 @@ public:
   //////////////////////////////////////////////////////
   // Random number generators
   //////////////////////////////////////////////////////
-  
-  //Return true if the RNG objects have been instantiated
-  bool haveRNGs() const{ return have_RNG; }
 
   void AddRNGs(std::string s = "") {
     // Couple the RNGs to the GridModule tagged by s

Grid/qcd/hmc/UsingHMC.md

@@ -1,61 +1,63 @@
-Using HMC in Grid version 0.5.1
+# Using HMC in Grid
 
-These are the instructions to use the Generalised HMC on Grid version 0.5.1.
-Disclaimer: GRID is still under active development so any information here can be changed in future releases.
+These are the instructions to use the Generalised HMC on Grid as of commit `749b802`.
+Disclaimer: Grid is still under active development so any information here can be changed in future releases.
 
 
-Command line options
-===================
-(relevant file GenericHMCrunner.h)
+## Command line options
+
+(relevant file `GenericHMCrunner.h`)
 The initial configuration can be changed at the command line using 
---StartType <your choice>
-valid choices, one among these
-HotStart, ColdStart, TepidStart, CheckpointStart
-default: HotStart
+`--StartingType STARTING_TYPE`, where `STARTING_TYPE` is one of
+`HotStart`, `ColdStart`, `TepidStart`, and `CheckpointStart`.
+Default: `--StartingType HotStart`
 
-example
-./My_hmc_exec  --StartType HotStart
+Example:
+```
+./My_hmc_exec  --StartingType HotStart
+```
 
-The CheckpointStart option uses the prefix for the configurations and rng seed files defined in your executable and the initial configuration is specified by
---StartTrajectory <integer>
-default: 0
+The `CheckpointStart` option uses the prefix for the configurations and rng seed files defined in your executable and the initial configuration is specified by
+`--StartingTrajectory STARTING_TRAJECTORY`, where `STARTING_TRAJECTORY` is an integer.
+Default: `--StartingTrajectory 0`
 
 The number of trajectories for a specific run are specified at command line by
---Trajectories <integer>
-default: 1
+`--Trajectories TRAJECTORIES`, where `TRAJECTORIES` is an integer.
+Default: `--Trajectories 1`
 
 The number of thermalization steps (i.e. steps when the Metropolis acceptance check is turned off) is specified by
---Thermalizations <integer>
-default: 10
-
+`--Thermalizations THERMALIZATIONS`, where `THERMALIZATIONS` is an integer.
+Default: `--Thermalizations 10`
 
 Any other parameter is defined in the source for the executable.
 
-HMC controls
-===========
+## HMC controls
 
 The lines 
 
+```
   std::vector<int> SerSeed({1, 2, 3, 4, 5});
   std::vector<int> ParSeed({6, 7, 8, 9, 10});
+```
 
 define the seeds for the serial and the parallel RNG.
 
 The line 
 
+```
   TheHMC.MDparameters.set(20, 1.0);// MDsteps, traj length
+```
 
 declares the number of molecular dynamics steps and the total trajectory length.
 
 
-Actions
-======
+## Actions
 
-Action names are defined in the file
-lib/qcd/Actions.h
+Action names are defined in the directory `Grid/qcd/action`.
 
-Gauge actions list:
+Gauge actions list (from `Grid/qcd/action/gauge/Gauge.h`):
 
+```
 WilsonGaugeActionR;
 WilsonGaugeActionF;
 WilsonGaugeActionD;
@@ -68,8 +70,9 @@ IwasakiGaugeActionD;
 SymanzikGaugeActionR;
 SymanzikGaugeActionF;
 SymanzikGaugeActionD;
+```
 
-
+```
 ConjugateWilsonGaugeActionR;
 ConjugateWilsonGaugeActionF;
 ConjugateWilsonGaugeActionD;
@@ -82,26 +85,23 @@ ConjugateIwasakiGaugeActionD;
 ConjugateSymanzikGaugeActionR;
 ConjugateSymanzikGaugeActionF;
 ConjugateSymanzikGaugeActionD;
+```
 
+Each of these action accepts one single parameter at creation time (beta).
+Example for creating a Symanzik action with beta=4.0
 
+```
+  SymanzikGaugeActionR(4.0)
+```
+
+Scalar actions list (from `Grid/qcd/action/scalar/Scalar.h`):
+
+```
 ScalarActionR;
 ScalarActionF;
 ScalarActionD;
+```
 
-
-each of these action accept one single parameter at creation time (beta).
-Example for creating a Symanzik action with beta=4.0
-
-	SymanzikGaugeActionR(4.0)
-
-The suffixes R,F,D in the action names refer to the Real
-(the precision is defined at compile time by the --enable-precision flag in the configure),
-Float and Double, that force the precision of the action to be 32, 64 bit respectively.
-
-
-
-
-
-
-
-
+The suffixes `R`, `F`, `D` in the action names refer to the `Real`
+(the precision is defined at compile time by the `--enable-precision` flag in the configure),
+`Float` and `Double`, that force the precision of the action to be 32, 64 bit respectively.

Grid/qcd/hmc/integrators/Integrator.h

@@ -33,6 +33,7 @@ directory
 #define INTEGRATOR_INCLUDED
 
 #include <memory>
+#include "MomentumFilter.h"
 
 NAMESPACE_BEGIN(Grid);
 
@@ -66,7 +67,6 @@ public:
 template <class FieldImplementation, class SmearingPolicy, class RepresentationPolicy>
 class Integrator {
 protected:
-
   typedef typename FieldImplementation::Field MomentaField;  //for readability
   typedef typename FieldImplementation::Field Field;
 
@@ -119,7 +119,6 @@ protected:
     }
   } update_P_hireps{};
 
- 
   void update_P(MomentaField& Mom, Field& U, int level, double ep) {
     // input U actually not used in the fundamental case
     // Fundamental updates, include smearing
@@ -131,45 +130,25 @@ protected:
 
       Field& Us = Smearer.get_U(as[level].actions.at(a)->is_smeared);
       double start_force = usecond();
-      as[level].actions.at(a)->deriv_timer_start();
       as[level].actions.at(a)->deriv(Us, force);  // deriv should NOT include Ta
-      as[level].actions.at(a)->deriv_timer_stop();
 
       std::cout << GridLogIntegrator << "Smearing (on/off): " << as[level].actions.at(a)->is_smeared << std::endl;
-      auto name = as[level].actions.at(a)->action_name();
       if (as[level].actions.at(a)->is_smeared) Smearer.smeared_force(force);
-      DumpSliceNorm("force before Ta",force,Nd-1);
       force = FieldImplementation::projectForce(force); // Ta for gauge fields
       double end_force = usecond();
-
-      DumpSliceNorm("force before filter",force,Nd-1);
-      MomFilter->applyFilter(force);
-      
-      Real force_abs   = std::sqrt(norm2(force)/U.Grid()->gSites()); //average per-site norm.  nb. norm2(latt) = \sum_x norm2(latt[x]) 
-      Real impulse_abs = force_abs * ep * HMC_MOMENTUM_DENOMINATOR;    
-
-      Real force_max   = std::sqrt(maxLocalNorm2(force));
-      Real impulse_max = force_max * ep * HMC_MOMENTUM_DENOMINATOR;    
-
-      as[level].actions.at(a)->deriv_log(force_abs,force_max);
-      
-      std::cout << GridLogIntegrator<< "["<<level<<"]["<<a<<"] Force average: " << force_abs <<" "<<name<<std::endl;
-      std::cout << GridLogIntegrator<< "["<<level<<"]["<<a<<"] Force max    : " << force_max <<" "<<name<<std::endl;
-      std::cout << GridLogIntegrator<< "["<<level<<"]["<<a<<"] Fdt average  : " << impulse_abs <<" "<<name<<std::endl;
-      std::cout << GridLogIntegrator<< "["<<level<<"]["<<a<<"] Fdt max      : " << impulse_max <<" "<<name<<std::endl;
-
+      Real force_abs = std::sqrt(norm2(force)/U.Grid()->gSites());
+      std::cout << GridLogIntegrator << "["<<level<<"]["<<a<<"] Force average: " << force_abs << std::endl;
       Mom -= force * ep* HMC_MOMENTUM_DENOMINATOR;; 
       double end_full = usecond();
       double time_full  = (end_full - start_full) / 1e3;
       double time_force = (end_force - start_force) / 1e3;
       std::cout << GridLogMessage << "["<<level<<"]["<<a<<"] P update elapsed time: " << time_full << " ms (force: " << time_force << " ms)"  << std::endl;
-
-      DumpSliceNorm("force after filter",force,Nd-1);
     }
 
     // Force from the other representations
     as[level].apply(update_P_hireps, Representations, Mom, U, ep);
 
+    MomFilter->applyFilter(Mom);
   }
 
   void update_U(Field& U, double ep) 
@@ -183,12 +162,8 @@ protected:
   
   void update_U(MomentaField& Mom, Field& U, double ep) 
   {
-    MomentaField MomFiltered(Mom.Grid());
-    MomFiltered = Mom;
-    MomFilter->applyFilter(MomFiltered);
-
     // exponential of Mom*U in the gauge fields case
-    FieldImplementation::update_field(MomFiltered, U, ep);
+    FieldImplementation::update_field(Mom, U, ep);
 
     // Update the smeared fields, can be implemented as observer
     Smearer.set_Field(U);
@@ -231,66 +206,6 @@ public:
   const MomentaField & getMomentum() const{ return P; }
   
 
-  void reset_timer(void)
-  {
-    for (int level = 0; level < as.size(); ++level) {
-      for (int actionID = 0; actionID < as[level].actions.size(); ++actionID) {
-        as[level].actions.at(actionID)->reset_timer();
-      }
-    }
-  }
-  void print_timer(void)
-  {
-    std::cout << GridLogMessage << ":::::::::::::::::::::::::::::::::::::::::" << std::endl;
-    std::cout << GridLogMessage << " Refresh cumulative timings "<<std::endl;
-    std::cout << GridLogMessage << "--------------------------- "<<std::endl;
-    for (int level = 0; level < as.size(); ++level) {
-      for (int actionID = 0; actionID < as[level].actions.size(); ++actionID) {
-	std::cout << GridLogMessage 
-		  << as[level].actions.at(actionID)->action_name()
-		  <<"["<<level<<"]["<< actionID<<"] "
-		  << as[level].actions.at(actionID)->refresh_us*1.0e-6<<" s"<< std::endl;
-      }
-    }
-    std::cout << GridLogMessage << "--------------------------- "<<std::endl;
-    std::cout << GridLogMessage << " Action cumulative timings "<<std::endl;
-    std::cout << GridLogMessage << "--------------------------- "<<std::endl;
-    for (int level = 0; level < as.size(); ++level) {
-      for (int actionID = 0; actionID < as[level].actions.size(); ++actionID) {
-	std::cout << GridLogMessage 
-		  << as[level].actions.at(actionID)->action_name()
-		  <<"["<<level<<"]["<< actionID<<"] "
-		  << as[level].actions.at(actionID)->S_us*1.0e-6<<" s"<< std::endl;
-      }
-    }
-    std::cout << GridLogMessage << "--------------------------- "<<std::endl;
-    std::cout << GridLogMessage << " Force cumulative timings "<<std::endl;
-    std::cout << GridLogMessage << "------------------------- "<<std::endl;
-    for (int level = 0; level < as.size(); ++level) {
-      for (int actionID = 0; actionID < as[level].actions.size(); ++actionID) {
-	std::cout << GridLogMessage 
-		  << as[level].actions.at(actionID)->action_name()
-		  <<"["<<level<<"]["<< actionID<<"] "
-		  << as[level].actions.at(actionID)->deriv_us*1.0e-6<<" s"<< std::endl;
-      }
-    }
-    std::cout << GridLogMessage << "--------------------------- "<<std::endl;
-    std::cout << GridLogMessage << " Force average size "<<std::endl;
-    std::cout << GridLogMessage << "------------------------- "<<std::endl;
-    for (int level = 0; level < as.size(); ++level) {
-      for (int actionID = 0; actionID < as[level].actions.size(); ++actionID) {
-	std::cout << GridLogMessage 
-		  << as[level].actions.at(actionID)->action_name()
-		  <<"["<<level<<"]["<< actionID<<"] : "
-		  <<" force max " << as[level].actions.at(actionID)->deriv_max_average()
-		  <<" norm "      << as[level].actions.at(actionID)->deriv_norm_average()
-		  <<" calls "     << as[level].actions.at(actionID)->deriv_num
-		  << std::endl;
-      }
-    }
-    std::cout << GridLogMessage << ":::::::::::::::::::::::::::::::::::::::::"<< std::endl;
-  }
-  
   void print_parameters()
   {
     std::cout << GridLogMessage << "[Integrator] Name : "<< integrator_name() << std::endl;
@@ -309,6 +224,7 @@ public:
       }
     }
     std::cout << GridLogMessage << ":::::::::::::::::::::::::::::::::::::::::"<< std::endl;
+
   }
 
   void reverse_momenta()
@@ -351,19 +267,15 @@ public:
       for (int actionID = 0; actionID < as[level].actions.size(); ++actionID) {
         // get gauge field from the SmearingPolicy and
         // based on the boolean is_smeared in actionID
-	auto name = as[level].actions.at(actionID)->action_name();
-        std::cout << GridLogMessage << "refresh [" << level << "][" << actionID << "] "<<name << std::endl;
-
         Field& Us = Smearer.get_U(as[level].actions.at(actionID)->is_smeared);
-	as[level].actions.at(actionID)->refresh_timer_start();
         as[level].actions.at(actionID)->refresh(Us, sRNG, pRNG);
-	as[level].actions.at(actionID)->refresh_timer_stop();
       }
 
       // Refresh the higher representation actions
       as[level].apply(refresh_hireps, Representations, sRNG, pRNG);
     }
 
+    MomFilter->applyFilter(P);
   }
 
   // to be used by the actionlevel class to iterate
@@ -398,9 +310,7 @@ public:
         // based on the boolean is_smeared in actionID
         Field& Us = Smearer.get_U(as[level].actions.at(actionID)->is_smeared);
         std::cout << GridLogMessage << "S [" << level << "][" << actionID << "] action eval " << std::endl;
-	        as[level].actions.at(actionID)->S_timer_start();
         Hterm = as[level].actions.at(actionID)->S(Us);
-   	        as[level].actions.at(actionID)->S_timer_stop();
         std::cout << GridLogMessage << "S [" << level << "][" << actionID << "] H = " << Hterm << std::endl;
         H += Hterm;
       }

Grid/qcd/hmc/integrators/MomentumFilter.h

@@ -28,7 +28,8 @@ directory
 *************************************************************************************/
 /*  END LEGAL */
 //--------------------------------------------------------------------
-#pragma once 
+#ifndef MOMENTUM_FILTER
+#define MOMENTUM_FILTER
 
 NAMESPACE_BEGIN(Grid);
 
@@ -36,7 +37,7 @@ NAMESPACE_BEGIN(Grid);
 
 template<typename MomentaField>
 struct MomentumFilterBase{
-  virtual void applyFilter(MomentaField &P) const = 0;
+  virtual void applyFilter(MomentaField &P) const;
 };
 
 //Do nothing
@@ -89,3 +90,5 @@ struct MomentumFilterApplyPhase: public MomentumFilterBase<MomentaField>{
 
 
 NAMESPACE_END(Grid);
+
+#endif

Grid/qcd/utils/CovariantCshift.h

@@ -182,7 +182,7 @@ namespace ConjugateBC {
     GridBase *grid = Link.Grid();
     int Lmu = grid->GlobalDimensions()[mu] - 1;
 
-    Lattice<iScalar<vInteger> > coor(grid);
+    Lattice<iScalar<vInteger>> coor(grid);
     LatticeCoordinate(coor, mu);
 
     Lattice<gauge> tmp(grid);

Grid/qcd/utils/MixedPrecisionOperatorFunction.h

@@ -1,111 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: 
-
-Copyright (C) 2015-2016
-
-Author: Peter Boyle <paboyle@ph.ed.ac.uk>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-/*  END LEGAL */
-
-#pragma once
-
-NAMESPACE_BEGIN(Grid); 
-
-template<class FermionOperatorD, class FermionOperatorF, class SchurOperatorD, class  SchurOperatorF> 
-class MixedPrecisionConjugateGradientOperatorFunction : public OperatorFunction<typename FermionOperatorD::FermionField> {
-
- public:
-    typedef typename FermionOperatorD::FermionField FieldD;
-    typedef typename FermionOperatorF::FermionField FieldF;
-
-    using OperatorFunction<FieldD>::operator();
-
-    RealD   Tolerance;
-    RealD   InnerTolerance; //Initial tolerance for inner CG. Defaults to Tolerance but can be changed
-    Integer MaxInnerIterations;
-    Integer MaxOuterIterations;
-    GridBase* SinglePrecGrid;
-    RealD OuterLoopNormMult; //Stop the outer loop and move to a final double prec solve when the residual is OuterLoopNormMult * Tolerance
-
-    FermionOperatorF &FermOpF;
-    FermionOperatorD &FermOpD;;
-    SchurOperatorF &LinOpF;
-    SchurOperatorD &LinOpD;
-
-    Integer TotalInnerIterations; //Number of inner CG iterations
-    Integer TotalOuterIterations; //Number of restarts
-    Integer TotalFinalStepIterations; //Number of CG iterations in final patch-up step
-
-     MixedPrecisionConjugateGradientOperatorFunction(RealD tol, RealD tolInner,
-						    Integer maxinnerit, 
-						    Integer maxouterit,
-						    GridBase *_SinglePrecGrid,
-                                                    FermionOperatorF &_FermOpF,
-                                                    FermionOperatorD &_FermOpD,
-						    SchurOperatorF   &_LinOpF,
-						    SchurOperatorD   &_LinOpD) : 
-      LinOpF(_LinOpF),
-      LinOpD(_LinOpD),
-      FermOpF(_FermOpF),
-      FermOpD(_FermOpD),
-      Tolerance(tol), 
-      InnerTolerance(tolInner), 
-      MaxInnerIterations(maxinnerit), 
-      MaxOuterIterations(maxouterit), 
-      SinglePrecGrid(_SinglePrecGrid),
-      OuterLoopNormMult(100.) 
-  { assert(tolInner<0.01);    };
-
-    void operator()(LinearOperatorBase<FieldD> &LinOpU, const FieldD &src, FieldD &psi)
-    {
-
-      SchurOperatorD * SchurOpU = static_cast<SchurOperatorD *>(&LinOpU);
-      
-      // Assumption made in code to extract gauge field
-      // We could avoid storing LinopD reference alltogether ?
-      assert(&(SchurOpU->_Mat)==&(LinOpD._Mat));
-
-      ////////////////////////////////////////////////////////////////////////////////////
-      // Moving this to a Clone method of fermion operator would allow to duplicate the 
-      // physics parameters and decrease gauge field copies
-      ////////////////////////////////////////////////////////////////////////////////////
-      auto &Umu_d = FermOpD.GetDoubledGaugeField();
-      auto &Umu_f = FermOpF.GetDoubledGaugeField();
-      auto &Umu_fe= FermOpF.GetDoubledGaugeFieldE();
-      auto &Umu_fo= FermOpF.GetDoubledGaugeFieldO();
-      precisionChange(Umu_f,Umu_d);
-      pickCheckerboard(Even,Umu_fe,Umu_f);
-      pickCheckerboard(Odd ,Umu_fo,Umu_f);
-
-      //////////////////////////////////////////////////////////////////////////////////////////
-      // Make a mixed precision conjugate gradient
-      //////////////////////////////////////////////////////////////////////////////////////////
-      // Could assume red black solver here and remove the SinglePrecGrid parameter???
-      MixedPrecisionConjugateGradient<FieldD,FieldF> MPCG(Tolerance, InnerTolerance,MaxInnerIterations,MaxOuterIterations,SinglePrecGrid,LinOpF,LinOpD);
-
-      std::cout << GridLogMessage << "Calling mixed precision Conjugate Gradient src "<<norm2(src) <<std::endl;
-      psi=Zero();
-      MPCG(src,psi);
-    }
-  };
-NAMESPACE_END(Grid); 

Grid/random/gaussian.h

@@ -1,200 +0,0 @@
-// -*- C++ -*-
-//===--------------------------- random -----------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// Peter Boyle: Taken from libc++ in Clang/LLVM.
-// Reason is that libstdc++ and clang differ in their return order in the normal_distribution / box mueller type step.
-// standardise on one and call it "gaussian_distribution".
-
-#pragma once
-
-#include <cstddef>
-#include <cstdint>
-#include <cmath>
-#include <type_traits>
-#include <initializer_list>
-#include <limits>
-#include <algorithm>
-#include <numeric>
-#include <vector>
-#include <string>
-#include <istream>
-#include <ostream>
-#include <random>
-
-// normal_distribution -> gaussian distribution
-namespace Grid {
-
-template<class _RealType = double>
-class  gaussian_distribution
-{
-public:
-    // types
-    typedef _RealType result_type;
-
-    class param_type
-    {
-        result_type __mean_;
-        result_type __stddev_;
-    public:
-        typedef gaussian_distribution distribution_type;
-
-        strong_inline
-        explicit param_type(result_type __mean = 0, result_type __stddev = 1)
-            : __mean_(__mean), __stddev_(__stddev) {}
-
-        strong_inline
-        result_type mean() const {return __mean_;}
-        strong_inline
-        result_type stddev() const {return __stddev_;}
-
-        friend strong_inline
-            bool operator==(const param_type& __x, const param_type& __y)
-            {return __x.__mean_ == __y.__mean_ && __x.__stddev_ == __y.__stddev_;}
-        friend strong_inline
-            bool operator!=(const param_type& __x, const param_type& __y)
-            {return !(__x == __y);}
-    };
-
-private:
-    param_type __p_;
-    result_type _V_;
-    bool _V_hot_;
-
-public:
-    // constructors and reset functions
-    strong_inline
-    explicit gaussian_distribution(result_type __mean = 0, result_type __stddev = 1)
-        : __p_(param_type(__mean, __stddev)), _V_hot_(false) {}
-    strong_inline
-    explicit gaussian_distribution(const param_type& __p)
-        : __p_(__p), _V_hot_(false) {}
-    strong_inline
-    void reset() {_V_hot_ = false;}
-
-    // generating functions
-    template<class _URNG>
-        strong_inline
-        result_type operator()(_URNG& __g)
-        {return (*this)(__g, __p_);}
-    template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
-
-    // property functions
-    strong_inline
-    result_type mean() const {return __p_.mean();}
-    strong_inline
-    result_type stddev() const {return __p_.stddev();}
-
-    strong_inline
-    param_type param() const {return __p_;}
-    strong_inline
-    void param(const param_type& __p) {__p_ = __p;}
-
-    strong_inline
-    result_type min() const {return -std::numeric_limits<result_type>::infinity();}
-    strong_inline
-    result_type max() const {return std::numeric_limits<result_type>::infinity();}
-
-    friend strong_inline
-        bool operator==(const gaussian_distribution& __x,
-                        const gaussian_distribution& __y)
-        {return __x.__p_ == __y.__p_ && __x._V_hot_ == __y._V_hot_ &&
-                (!__x._V_hot_ || __x._V_ == __y._V_);}
-    friend strong_inline
-        bool operator!=(const gaussian_distribution& __x,
-                        const gaussian_distribution& __y)
-        {return !(__x == __y);}
-
-    template <class _CharT, class _Traits, class _RT>
-    friend
-    std::basic_ostream<_CharT, _Traits>&
-    operator<<(std::basic_ostream<_CharT, _Traits>& __os,
-               const gaussian_distribution<_RT>& __x);
-
-    template <class _CharT, class _Traits, class _RT>
-    friend
-    std::basic_istream<_CharT, _Traits>&
-    operator>>(std::basic_istream<_CharT, _Traits>& __is,
-               gaussian_distribution<_RT>& __x);
-};
-
-template <class _RealType>
-template<class _URNG>
-_RealType
-gaussian_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
-{
-    result_type _Up;
-    if (_V_hot_)
-    {
-        _V_hot_ = false;
-        _Up = _V_;
-    }
-    else
-    {
-        std::uniform_real_distribution<result_type> _Uni(-1, 1);
-        result_type __u;
-        result_type __v;
-        result_type __s;
-        do
-        {
-            __u = _Uni(__g);
-            __v = _Uni(__g);
-            __s = __u * __u + __v * __v;
-        } while (__s > 1 || __s == 0);
-        result_type _Fp = std::sqrt(-2 * std::log(__s) / __s);
-        _V_ = __v * _Fp;
-        _V_hot_ = true;
-        _Up = __u * _Fp;
-    }
-    return _Up * __p.stddev() + __p.mean();
-}
-
-template <class _CharT, class _Traits, class _RT>
-std::basic_ostream<_CharT, _Traits>&
-operator<<(std::basic_ostream<_CharT, _Traits>& __os,
-           const gaussian_distribution<_RT>& __x)
-{
-    auto __save_flags = __os.flags();
-    __os.flags(std::ios_base::dec | std::ios_base::left | std::ios_base::fixed |
-               std::ios_base::scientific);
-    _CharT __sp = __os.widen(' ');
-    __os.fill(__sp);
-    __os << __x.mean() << __sp << __x.stddev() << __sp << __x._V_hot_;
-    if (__x._V_hot_)
-        __os << __sp << __x._V_;
-    __os.flags(__save_flags);
-    return __os;
-}
-
-template <class _CharT, class _Traits, class _RT>
-std::basic_istream<_CharT, _Traits>&
-operator>>(std::basic_istream<_CharT, _Traits>& __is,
-           gaussian_distribution<_RT>& __x)
-{
-    typedef gaussian_distribution<_RT> _Eng;
-    typedef typename _Eng::result_type result_type;
-    typedef typename _Eng::param_type param_type;
-    auto __save_flags = __is.flags();
-    __is.flags(std::ios_base::dec | std::ios_base::skipws);
-    result_type __mean;
-    result_type __stddev;
-    result_type _Vp = 0;
-    bool _V_hot = false;
-    __is >> __mean >> __stddev >> _V_hot;
-    if (_V_hot)
-        __is >> _Vp;
-    if (!__is.fail())
-    {
-        __x.param(param_type(__mean, __stddev));
-        __x._V_hot_ = _V_hot;
-        __x._V_ = _Vp;
-    }
-    __is.flags(__save_flags);
-    return __is;
-}
-}

Grid/stencil/Stencil.h

@@ -263,8 +263,7 @@ public:
   int face_table_computed;
   std::vector<commVector<std::pair<int,int> > > face_table ;
   Vector<int> surface_list;
-  bool locally_periodic;
-  
+
   stencilVector<StencilEntry>  _entries; // Resident in managed memory
   commVector<StencilEntry>     _entries_device; // Resident in managed memory
   std::vector<Packet> Packets;
@@ -321,15 +320,14 @@ public:
     int ld              = _grid->_ldimensions[dimension];
     int rd              = _grid->_rdimensions[dimension];
     int simd_layout     = _grid->_simd_layout[dimension];
-    int comm_dim        = _grid->_processors[dimension] >1 && (!locally_periodic);
+    int comm_dim        = _grid->_processors[dimension] >1 ;
 
-    int recv_from_rank;
-    int xmit_to_rank;
+    //    int recv_from_rank;
+    //    int xmit_to_rank;
 
     if ( ! comm_dim ) return 1;
     if ( displacement == 0 ) return 1;
     return 0;
-
   }
 
   //////////////////////////////////////////
@@ -475,7 +473,7 @@ public:
 
     // the permute type
     int simd_layout     = _grid->_simd_layout[dimension];
-    int comm_dim        = _grid->_processors[dimension] >1 && (!locally_periodic);
+    int comm_dim        = _grid->_processors[dimension] >1 ;
     int splice_dim      = _grid->_simd_layout[dimension]>1 && (comm_dim);
 
     int is_same_node = 1;
@@ -659,20 +657,6 @@ public:
 		   const std::vector<int> &directions,
 		   const std::vector<int> &distances,
 		   Parameters p)
-    : CartesianStencil(grid,
-		       npoints,
-		       checkerboard,
-		       directions,
-		       distances,
-		       false,
-		       p){};
-  CartesianStencil(GridBase *grid,
-		   int npoints,
-		   int checkerboard,
-		   const std::vector<int> &directions,
-		   const std::vector<int> &distances,
-		   bool _locally_periodic,
-		   Parameters p)
     : shm_bytes_thr(npoints),
       comm_bytes_thr(npoints),
       comm_enter_thr(npoints),
@@ -681,7 +665,6 @@ public:
   {
     face_table_computed=0;
     _grid    = grid;
-    this->locally_periodic=_locally_periodic;
     this->parameters=p;
     /////////////////////////////////////
     // Initialise the base
@@ -707,8 +690,6 @@ public:
       int point = i;
 
       int dimension    = directions[i];
-      assert(dimension>=0 && dimension<_grid->Nd());
-
       int displacement = distances[i];
       int shift = displacement;
 
@@ -722,7 +703,7 @@ public:
       // the permute type
       //////////////////////////
       int simd_layout     = _grid->_simd_layout[dimension];
-      int comm_dim        = _grid->_processors[dimension] >1 && (!locally_periodic);
+      int comm_dim        = _grid->_processors[dimension] >1 ;
       int splice_dim      = _grid->_simd_layout[dimension]>1 && (comm_dim);
       int rotate_dim      = _grid->_simd_layout[dimension]>2;
 
@@ -836,7 +817,7 @@ public:
     int pd              = _grid->_processors[dimension];
     int simd_layout     = _grid->_simd_layout[dimension];
     int comm_dim        = _grid->_processors[dimension] >1 ;
-    assert(locally_periodic==false);
+
     assert(comm_dim==1);
     int shift = (shiftpm + fd) %fd;
     assert(shift>=0);
@@ -1016,7 +997,6 @@ public:
     int pd              = _grid->_processors[dimension];
     int simd_layout     = _grid->_simd_layout[dimension];
     int comm_dim        = _grid->_processors[dimension] >1 ;
-    assert(locally_periodic==false);
     assert(simd_layout==1);
     assert(comm_dim==1);
     assert(shift>=0);
@@ -1109,7 +1089,6 @@ public:
     int pd              = _grid->_processors[dimension];
     int simd_layout     = _grid->_simd_layout[dimension];
     int comm_dim        = _grid->_processors[dimension] >1 ;
-    assert(locally_periodic==false);
     assert(comm_dim==1);
     // This will not work with a rotate dim
     assert(simd_layout==maxl);

Grid/tensors/Tensor_exp.h

@@ -52,17 +52,12 @@ template<class vtype, int N> accelerator_inline iVector<vtype, N> Exponentiate(c
   return ret;
 }
 
-// Specialisation: Cayley-Hamilton exponential for SU(3)
-#if 0
-template<class vtype, typename std::enable_if< GridTypeMapper<vtype>::TensorLevel == 0>::type * =nullptr> 
-accelerator_inline iMatrix<vtype,3> Exponentiated(const iMatrix<vtype,3> &arg, RealD alpha  , Integer Nexp = DEFAULT_MAT_EXP )
-{
-  return ExponentiateCayleyHamilton(arg,alpha);
-}
-#endif
 
+
+// Specialisation: Cayley-Hamilton exponential for SU(3)
+#ifndef GRID_CUDA
 template<class vtype, typename std::enable_if< GridTypeMapper<vtype>::TensorLevel == 0>::type * =nullptr> 
-accelerator_inline iMatrix<vtype,3> ExponentiateCayleyHamilton(const iMatrix<vtype,3> &arg, RealD alpha )
+accelerator_inline iMatrix<vtype,3> Exponentiate(const iMatrix<vtype,3> &arg, RealD alpha  , Integer Nexp = DEFAULT_MAT_EXP )
 {
   // for SU(3) 2x faster than the std implementation using Nexp=12
   // notice that it actually computes
@@ -120,6 +115,8 @@ accelerator_inline iMatrix<vtype,3> ExponentiateCayleyHamilton(const iMatrix<vty
 
   return (f0 * unit + timesMinusI(f1) * arg*alpha - f2 * iQ2);
 }
+#endif
+
 
 // General exponential
 template<class vtype,int N, typename std::enable_if< GridTypeMapper<vtype>::TensorLevel == 0 >::type * =nullptr> 
@@ -132,8 +129,8 @@ accelerator_inline iMatrix<vtype,N> Exponentiate(const iMatrix<vtype,N> &arg, Re
   typedef iMatrix<vtype,N> mat;
   mat unit(1.0);
   mat temp(unit);
-  for(int n=Nexp; n>=1;--n){
-    temp *= alpha/RealD(n);
+  for(int i=Nexp; i>=1;--i){
+    temp *= alpha/RealD(i);
     temp = unit + temp*arg;
   }
   return temp;

Grid/tensors/Tensor_extract_merge.h

@@ -208,46 +208,5 @@ void merge(vobj &vec,const ExtractPointerArray<sobj> &extracted, int offset)
 }
 
 
-
-//////////////////////////////////////////////////////////////////////////////////
-//Copy a single lane of a SIMD tensor type from one object to another
-//Output object must be of the same tensor type but may be of a different precision (i.e. it can have a different root data type)
-///////////////////////////////////////////////////////////////////////////////////
-template<class vobjOut, class vobjIn>
-accelerator_inline 
-void copyLane(vobjOut & __restrict__ vecOut, int lane_out, const vobjIn & __restrict__ vecIn, int lane_in)
-{
-  static_assert( std::is_same<typename vobjOut::DoublePrecision, typename vobjIn::DoublePrecision>::value == 1, "copyLane: tensor types must be the same" ); //if tensor types are same the DoublePrecision type must be the same
-
-  typedef typename vobjOut::vector_type ovector_type;  
-  typedef typename vobjIn::vector_type ivector_type;  
-  constexpr int owords=sizeof(vobjOut)/sizeof(ovector_type);
-  constexpr int iwords=sizeof(vobjIn)/sizeof(ivector_type);
-  static_assert( owords == iwords, "copyLane: Expected number of vector words in input and output objects to be equal" );
-
-  typedef typename vobjOut::scalar_type oscalar_type;  
-  typedef typename vobjIn::scalar_type iscalar_type;  
-  typedef typename ExtractTypeMap<oscalar_type>::extract_type oextract_type;
-  typedef typename ExtractTypeMap<iscalar_type>::extract_type iextract_type;
-
-  typedef oextract_type * opointer;
-  typedef iextract_type * ipointer;
-
-  constexpr int oNsimd=ovector_type::Nsimd();
-  constexpr int iNsimd=ivector_type::Nsimd();
-
-  iscalar_type itmp;
-  oscalar_type otmp;
-
-  opointer __restrict__  op = (opointer)&vecOut;
-  ipointer __restrict__  ip = (ipointer)&vecIn;
-  for(int w=0;w<owords;w++){
-    memcpy( (char*)&itmp, (char*)(ip + lane_in + iNsimd*w), sizeof(iscalar_type) );
-    otmp = itmp; //potential precision change
-    memcpy( (char*)(op + lane_out + oNsimd*w), (char*)&otmp, sizeof(oscalar_type) );
-  }
-}
-
-
 NAMESPACE_END(Grid);
 

Grid/tensors/Tensor_traits.h

@@ -47,20 +47,20 @@ NAMESPACE_BEGIN(Grid);
   class TypePair {
   public:
     T _internal[2];
-    TypePair<T>& operator=(const Grid::Zero& o) {
+    accelerator TypePair<T>& operator=(const Grid::Zero& o) {
       _internal[0] = Zero();
       _internal[1] = Zero();
       return *this;
     }
 
-    TypePair<T> operator+(const TypePair<T>& o) const {
+    accelerator TypePair<T> operator+(const TypePair<T>& o) const {
       TypePair<T> r;
       r._internal[0] = _internal[0] + o._internal[0];
       r._internal[1] = _internal[1] + o._internal[1];
       return r;
     }
 
-    TypePair<T>& operator+=(const TypePair<T>& o) {
+    accelerator TypePair<T>& operator+=(const TypePair<T>& o) {
       _internal[0] += o._internal[0];
       _internal[1] += o._internal[1];
       return *this;

Grid/threads/Accelerator.cc

@@ -84,7 +84,8 @@ void acceleratorInit(void)
   // IBM Jsrun makes cuda Device numbering screwy and not match rank
   if ( world_rank == 0 ) {
     printf("AcceleratorCudaInit: using default device \n");
-    printf("AcceleratorCudaInit: assume user either uses a) IBM jsrun, or \n");
+    printf("AcceleratorCudaInit: assume user either uses\n");
+    printf("AcceleratorCudaInit: a) IBM jsrun, or \n");
     printf("AcceleratorCudaInit: b) invokes through a wrapping script to set CUDA_VISIBLE_DEVICES, UCX_NET_DEVICES, and numa binding \n");
     printf("AcceleratorCudaInit: Configure options --enable-setdevice=no \n");
   }
@@ -95,7 +96,7 @@ void acceleratorInit(void)
 #endif
 
   cudaSetDevice(device);
-
+  cudaStreamCreate(&copyStream);
   const int len=64;
   char busid[len];
   if( rank == world_rank ) { 
@@ -109,6 +110,7 @@ void acceleratorInit(void)
 
 #ifdef GRID_HIP
 hipDeviceProp_t *gpu_props;
+hipStream_t copyStream;
 void acceleratorInit(void)
 {
   int nDevices = 1;
@@ -166,16 +168,25 @@ void acceleratorInit(void)
 #ifdef GRID_DEFAULT_GPU
   if ( world_rank == 0 ) {
     printf("AcceleratorHipInit: using default device \n");
-    printf("AcceleratorHipInit: assume user either uses a wrapping script to set CUDA_VISIBLE_DEVICES, UCX_NET_DEVICES, and numa binding \n");
-    printf("AcceleratorHipInit: Configure options --enable-summit, --enable-select-gpu=no \n");
+    printf("AcceleratorHipInit: assume user or srun sets ROCR_VISIBLE_DEVICES and numa binding \n");
+    printf("AcceleratorHipInit: Configure options --enable-setdevice=no \n");
   }
+  int device = 0;
 #else
   if ( world_rank == 0 ) {
     printf("AcceleratorHipInit: rank %d setting device to node rank %d\n",world_rank,rank);
-    printf("AcceleratorHipInit: Configure options --enable-select-gpu=yes \n");
+    printf("AcceleratorHipInit: Configure options --enable-setdevice=yes \n");
   }
-  hipSetDevice(rank);
+  int device = rank;
 #endif
+  hipSetDevice(device);
+  hipStreamCreate(&copyStream);
+  const int len=64;
+  char busid[len];
+  if( rank == world_rank ) { 
+    hipDeviceGetPCIBusId(busid, len, device);
+    printf("local rank %d device %d bus id: %s\n", rank, device, busid);
+  }
   if ( world_rank == 0 )  printf("AcceleratorHipInit: ================================================\n");
 }
 #endif

Grid/threads/Accelerator.h

@@ -95,6 +95,7 @@ void     acceleratorInit(void);
 //////////////////////////////////////////////
 
 #ifdef GRID_CUDA
+
 #include <cuda.h>
 
 #ifdef __CUDA_ARCH__
@@ -205,7 +206,7 @@ inline void *acceleratorAllocShared(size_t bytes)
   auto err = cudaMallocManaged((void **)&ptr,bytes);
   if( err != cudaSuccess ) {
     ptr = (void *) NULL;
-    printf(" cudaMallocManaged failed for %lu %s \n",bytes,cudaGetErrorString(err));
+    printf(" cudaMallocManaged failed for %d %s \n",bytes,cudaGetErrorString(err));
   }
   return ptr;
 };
@@ -215,7 +216,7 @@ inline void *acceleratorAllocDevice(size_t bytes)
   auto err = cudaMalloc((void **)&ptr,bytes);
   if( err != cudaSuccess ) {
     ptr = (void *) NULL;
-    printf(" cudaMalloc failed for %lu %s \n",bytes,cudaGetErrorString(err));
+    printf(" cudaMalloc failed for %d %s \n",bytes,cudaGetErrorString(err));
   }
   return ptr;
 };
@@ -229,6 +230,7 @@ inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes
   cudaMemcpyAsync(to,from,bytes, cudaMemcpyDeviceToDevice,copyStream);
 }
 inline void acceleratorCopySynchronise(void) { cudaStreamSynchronize(copyStream); };
+
 inline int  acceleratorIsCommunicable(void *ptr)
 {
   //  int uvm=0;
@@ -305,7 +307,7 @@ inline void acceleratorFreeDevice(void *ptr){free(ptr,*theGridAccelerator);};
 inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes)  {
   theGridAccelerator->memcpy(to,from,bytes);
 }
-inline void acceleratorCopySynchronise(void) {  theGridAccelerator->wait(); }
+inline void acceleratorCopySynchronise(void) {  theGridAccelerator->wait(); std::cout<<"acceleratorCopySynchronise() wait "<<std::endl; }
 inline void acceleratorCopyToDevice(void *from,void *to,size_t bytes)  { theGridAccelerator->memcpy(to,from,bytes); theGridAccelerator->wait();}
 inline void acceleratorCopyFromDevice(void *from,void *to,size_t bytes){ theGridAccelerator->memcpy(to,from,bytes); theGridAccelerator->wait();}
 inline void acceleratorMemSet(void *base,int value,size_t bytes) { theGridAccelerator->memset(base,value,bytes); theGridAccelerator->wait();}
@@ -336,6 +338,7 @@ NAMESPACE_BEGIN(Grid);
 #define accelerator        __host__ __device__
 #define accelerator_inline __host__ __device__ inline
 
+extern hipStream_t copyStream;
 /*These routines define mapping from thread grid to loop & vector lane indexing */
 accelerator_inline int acceleratorSIMTlane(int Nsimd) {
 #ifdef GRID_SIMT
@@ -410,10 +413,16 @@ inline void acceleratorFreeShared(void *ptr){ hipFree(ptr);};
 inline void acceleratorFreeDevice(void *ptr){ hipFree(ptr);};
 inline void acceleratorCopyToDevice(void *from,void *to,size_t bytes)  { hipMemcpy(to,from,bytes, hipMemcpyHostToDevice);}
 inline void acceleratorCopyFromDevice(void *from,void *to,size_t bytes){ hipMemcpy(to,from,bytes, hipMemcpyDeviceToHost);}
-inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes)  { hipMemcpy(to,from,bytes, hipMemcpyDeviceToDevice);}
-inline void acceleratorCopySynchronise(void) {  }
+//inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes)  { hipMemcpy(to,from,bytes, hipMemcpyDeviceToDevice);}
+//inline void acceleratorCopySynchronise(void) {  }
 inline void acceleratorMemSet(void *base,int value,size_t bytes) { hipMemset(base,value,bytes);}
 
+inline void acceleratorCopyDeviceToDeviceAsynch(void *from,void *to,size_t bytes) // Asynch
+{
+  hipMemcpyAsync(to,from,bytes, hipMemcpyDeviceToDevice,copyStream);
+}
+inline void acceleratorCopySynchronise(void) { hipStreamSynchronize(copyStream); };
+
 #endif
 
 //////////////////////////////////////////////
@@ -484,18 +493,12 @@ inline void acceleratorFreeCpu  (void *ptr){free(ptr);};
 ///////////////////////////////////////////////////
 // Synchronise across local threads for divergence resynch
 ///////////////////////////////////////////////////
-accelerator_inline void acceleratorSynchronise(void) 
+accelerator_inline void acceleratorSynchronise(void)  // Only Nvidia needs 
 {
 #ifdef GRID_SIMT
 #ifdef GRID_CUDA
   __syncwarp();
 #endif
-#ifdef GRID_SYCL
-  //cl::sycl::detail::workGroupBarrier();
-#endif
-#ifdef GRID_HIP
-  __syncthreads();
-#endif
 #endif
   return;
 }

Grid/util/Coordinate.h

@@ -88,7 +88,7 @@ public:
 // Coordinate class, maxdims = 8 for now.
 ////////////////////////////////////////////////////////////////
 #define GRID_MAX_LATTICE_DIMENSION (8)
-#define GRID_MAX_SIMD              (16)
+#define GRID_MAX_SIMD              (32)
 
 static constexpr int MaxDims = GRID_MAX_LATTICE_DIMENSION;
 

HMC/DWF2p1fIwasakiGparity.cc

@@ -1,473 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./HMC/DWF2p1fIwasakiGparity.cc
-
-Copyright (C) 2015-2016
-
-Author: Christopher Kelly <ckelly@bnl.gov>
-Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
-
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-/*  END LEGAL */
-#include <Grid/Grid.h>
-
-using namespace Grid;
-
-//2+1f DWF+I ensemble with G-parity BCs
-//designed to reproduce ensembles in https://arxiv.org/pdf/1908.08640.pdf
-struct RatQuoParameters: Serializable {
-  GRID_SERIALIZABLE_CLASS_MEMBERS(RatQuoParameters,
-				  double, bnd_lo,
-				  double, bnd_hi,
-				  Integer, action_degree,
-				  double, action_tolerance,
-				  Integer, md_degree,
-				  double, md_tolerance,
-				  Integer, reliable_update_freq,
-				  Integer, bnd_check_freq);
-  RatQuoParameters() { 
-    bnd_lo = 1e-2;
-    bnd_hi = 30;
-    action_degree = 10;
-    action_tolerance = 1e-10;
-    md_degree = 10;
-    md_tolerance = 1e-8;
-    bnd_check_freq = 20;
-    reliable_update_freq = 50;
-  }
-
-  void Export(RationalActionParams &into) const{
-    into.lo = bnd_lo;
-    into.hi = bnd_hi;
-    into.action_degree = action_degree;
-    into.action_tolerance = action_tolerance;
-    into.md_degree = md_degree;
-    into.md_tolerance = md_tolerance;
-    into.BoundsCheckFreq = bnd_check_freq;
-  }
-};
-
-
-struct EvolParameters: Serializable {
-  GRID_SERIALIZABLE_CLASS_MEMBERS(EvolParameters,
-                                  Integer, StartTrajectory,
-                                  Integer, Trajectories,
-				  Integer, SaveInterval,
-				  Integer, Steps,
-                                  bool, MetropolisTest,
-				  std::string, StartingType,
-				  std::vector<Integer>, GparityDirs,
-				  RatQuoParameters, rat_quo_l,
-				  RatQuoParameters, rat_quo_s);
-
-  EvolParameters() {
-    //For initial thermalization; afterwards user should switch Metropolis on and use StartingType=CheckpointStart
-    MetropolisTest    = false;
-    StartTrajectory   = 0;
-    Trajectories      = 50;
-    SaveInterval = 5;
-    StartingType      = "ColdStart";
-    GparityDirs.resize(3, 1); //1 for G-parity, 0 for periodic
-    Steps = 5;
-  }
-};
-
-bool fileExists(const std::string &fn){
-  std::ifstream f(fn);
-  return f.good();
-}
-
-
-
-
-struct LanczosParameters: Serializable {
-  GRID_SERIALIZABLE_CLASS_MEMBERS(LanczosParameters,
-				  double, alpha,
-				  double, beta,
-				  double, mu,
-				  int, ord,
-				  int, n_stop,
-				  int, n_want,
-				  int, n_use,
-				  double, tolerance);
-
-  LanczosParameters() {
-    alpha = 35;
-    beta = 5;
-    mu = 0;
-    ord = 100;
-    n_stop = 10;
-    n_want = 10;
-    n_use = 15;
-    tolerance = 1e-6;
-  }
-};
-
-
-
-template<typename FermionActionD, typename FermionFieldD>
-void computeEigenvalues(std::string param_file,
-			GridCartesian* Grid, GridRedBlackCartesian* rbGrid, const LatticeGaugeFieldD &latt,  //expect lattice to have been initialized to something
-			FermionActionD &action, GridParallelRNG &rng){
-  
-  LanczosParameters params;
-  if(fileExists(param_file)){
-    std::cout << GridLogMessage << " Reading " << param_file << std::endl;
-    Grid::XmlReader rd(param_file);
-    read(rd, "LanczosParameters", params);
-  }else if(!GlobalSharedMemory::WorldRank){
-    std::cout << GridLogMessage << " File " << param_file << " does not exist" << std::endl;
-    std::cout << GridLogMessage << " Writing xml template to " << param_file << ".templ" << std::endl;
-    Grid::XmlWriter wr(param_file + ".templ");
-    write(wr, "LanczosParameters", params);
-  }
-
-  FermionFieldD gauss_o(rbGrid);
-  FermionFieldD gauss(Grid);
-  gaussian(rng, gauss);
-  pickCheckerboard(Odd, gauss_o, gauss);
-
-  action.ImportGauge(latt);
-
-  SchurDiagMooeeOperator<FermionActionD, FermionFieldD> hermop(action);
-  PlainHermOp<FermionFieldD> hermop_wrap(hermop);
-  //ChebyshevLanczos<FermionFieldD> Cheb(params.alpha, params.beta, params.mu, params.ord);
-  assert(params.mu == 0.0);
-
-  Chebyshev<FermionFieldD> Cheb(params.beta*params.beta, params.alpha*params.alpha, params.ord+1);
-  FunctionHermOp<FermionFieldD> Cheb_wrap(Cheb, hermop);
-
-  std::cout << "IRL: alpha=" << params.alpha << " beta=" << params.beta << " mu=" << params.mu << " ord=" << params.ord << std::endl;
-  ImplicitlyRestartedLanczos<FermionFieldD> IRL(Cheb_wrap, hermop_wrap, params.n_stop, params.n_want, params.n_use, params.tolerance, 10000);
-
-  std::vector<RealD> eval(params.n_use);
-  std::vector<FermionFieldD> evec(params.n_use, rbGrid);
-  int Nconv;
-  IRL.calc(eval, evec, gauss_o, Nconv);
-
-  std::cout << "Eigenvalues:" << std::endl;
-  for(int i=0;i<params.n_want;i++){
-    std::cout << i << " " << eval[i] << std::endl;
-  }
-}
-
-
-//Check the quality of the RHMC approx
-template<typename FermionActionD, typename FermionFieldD, typename RHMCtype>
-void checkRHMC(GridCartesian* Grid, GridRedBlackCartesian* rbGrid, const LatticeGaugeFieldD &latt,  //expect lattice to have been initialized to something
-	       FermionActionD &numOp, FermionActionD &denOp, RHMCtype &rhmc, GridParallelRNG &rng,
-	       int inv_pow, const std::string &quark_descr){
-
-  FermionFieldD gauss_o(rbGrid);
-  FermionFieldD gauss(Grid);
-  gaussian(rng, gauss);
-  pickCheckerboard(Odd, gauss_o, gauss);
-
-  numOp.ImportGauge(latt);
-  denOp.ImportGauge(latt);
-
-  typedef typename FermionActionD::Impl_t FermionImplPolicyD;
-  SchurDifferentiableOperator<FermionImplPolicyD> MdagM(numOp);
-  SchurDifferentiableOperator<FermionImplPolicyD> VdagV(denOp);
-      
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegPowerAction); //use large tolerance to prevent exit on fail; we are trying to tune here!
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegHalfPowerAction);
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegPowerAction);
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegHalfPowerAction);
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-
-  std::cout << "-------------------------------------------------------------------------------" << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegPowerMD); 
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegHalfPowerMD);
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegPowerMD);
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegHalfPowerMD);
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-}
-
-
-
-
-
-
-
-
-
-int main(int argc, char **argv) {
-  Grid_init(&argc, &argv);
-  int threads = GridThread::GetThreads();
-  // here make a routine to print all the relevant information on the run
-  std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
-
-  std::string param_file = "params.xml";
-  bool file_load_check = false;
-  for(int i=1;i<argc;i++){
-    std::string sarg(argv[i]);
-    if(sarg == "--param_file"){
-      assert(i!=argc-1);
-      param_file = argv[i+1];
-    }else if(sarg == "--read_check"){ //check the fields load correctly and pass checksum/plaquette repro
-      file_load_check = true;
-    }
-  }
-
-  //Read the user parameters
-  EvolParameters user_params;
-  
-  if(fileExists(param_file)){
-    std::cout << GridLogMessage << " Reading " << param_file << std::endl;
-    Grid::XmlReader rd(param_file);
-    read(rd, "Params", user_params);
-  }else if(!GlobalSharedMemory::WorldRank){
-    std::cout << GridLogMessage << " File " << param_file << " does not exist" << std::endl;
-    std::cout << GridLogMessage << " Writing xml template to " << param_file << ".templ" << std::endl;
-    Grid::XmlWriter wr(param_file + ".templ");
-    write(wr, "Params", user_params);
-
-    std::cout << GridLogMessage << " Done" << std::endl;
-    Grid_finalize();
-    return 0;
-  }
-
-  //Check the parameters
-  if(user_params.GparityDirs.size() != Nd-1){
-    std::cerr << "Error in input parameters: expect GparityDirs to have size = " << Nd-1 << std::endl;
-    exit(1);
-  }
-  for(int i=0;i<Nd-1;i++)
-    if(user_params.GparityDirs[i] != 0 && user_params.GparityDirs[i] != 1){
-      std::cerr << "Error in input parameters: expect GparityDirs values to be 0 (periodic) or 1 (G-parity)" << std::endl;
-      exit(1);
-    }
-
-   // Typedefs to simplify notation
-  typedef GparityDomainWallFermionD FermionActionD;
-  typedef typename FermionActionD::Impl_t FermionImplPolicyD;
-  typedef typename FermionActionD::FermionField FermionFieldD;
-
-  typedef GparityDomainWallFermionF FermionActionF;
-  typedef typename FermionActionF::Impl_t FermionImplPolicyF;
-  typedef typename FermionActionF::FermionField FermionFieldF;
-
-  typedef GeneralEvenOddRatioRationalMixedPrecPseudoFermionAction<FermionImplPolicyD,FermionImplPolicyF> MixedPrecRHMC;
-  typedef GeneralEvenOddRatioRationalPseudoFermionAction<FermionImplPolicyD> DoublePrecRHMC;
-
-  //::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-  IntegratorParameters MD;
-  typedef ConjugateHMCRunnerD<MinimumNorm2> HMCWrapper; //NB: This is the "Omelyan integrator"
-  typedef HMCWrapper::ImplPolicy GaugeImplPolicy;
-  MD.name    = std::string("MinimumNorm2");
-  MD.MDsteps = user_params.Steps;
-  MD.trajL   = 1.0;
-
-  HMCparameters HMCparams;
-  HMCparams.StartTrajectory  = user_params.StartTrajectory;
-  HMCparams.Trajectories     = user_params.Trajectories;
-  HMCparams.NoMetropolisUntil= 0;
-  HMCparams.StartingType     = user_params.StartingType;
-  HMCparams.MetropolisTest = user_params.MetropolisTest;
-  HMCparams.MD = MD;
-  HMCWrapper TheHMC(HMCparams);
-
-  // Grid from the command line arguments --grid and --mpi
-  TheHMC.Resources.AddFourDimGrid("gauge"); // use default simd lanes decomposition
-
-  CheckpointerParameters CPparams;
-  CPparams.config_prefix = "ckpoint_lat";
-  CPparams.rng_prefix    = "ckpoint_rng";
-  CPparams.saveInterval  = user_params.SaveInterval;
-  CPparams.format        = "IEEE64BIG";
-  TheHMC.Resources.LoadNerscCheckpointer(CPparams);
-
-  //Note that checkpointing saves the RNG state so that this initialization is required only for the very first configuration
-  RNGModuleParameters RNGpar;
-  RNGpar.serial_seeds = "1 2 3 4 5";
-  RNGpar.parallel_seeds = "6 7 8 9 10";
-  TheHMC.Resources.SetRNGSeeds(RNGpar);
-
-  typedef PlaquetteMod<GaugeImplPolicy> PlaqObs;
-  TheHMC.Resources.AddObservable<PlaqObs>();
-  //////////////////////////////////////////////
-
-  const int Ls      = 16;
-  Real beta         = 2.13;
-  Real light_mass   = 0.01;
-  Real strange_mass = 0.032;
-  Real pv_mass      = 1.0;
-  RealD M5  = 1.8;
-
-  //Setup the Grids
-  auto GridPtrD   = TheHMC.Resources.GetCartesian();
-  auto GridRBPtrD = TheHMC.Resources.GetRBCartesian();
-  auto FGridD     = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtrD);
-  auto FrbGridD   = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtrD);
-
-  GridCartesian* GridPtrF = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd, vComplexF::Nsimd()), GridDefaultMpi());
-  GridRedBlackCartesian* GridRBPtrF = SpaceTimeGrid::makeFourDimRedBlackGrid(GridPtrF);
-  auto FGridF     = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtrF);
-  auto FrbGridF   = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtrF);
-
-  ConjugateIwasakiGaugeActionD GaugeAction(beta);
-
-  // temporarily need a gauge field
-  LatticeGaugeFieldD Ud(GridPtrD);
-  LatticeGaugeFieldF Uf(GridPtrF);
- 
-  //Setup the BCs
-  FermionActionD::ImplParams Params;
-  for(int i=0;i<Nd-1;i++) Params.twists[i] = user_params.GparityDirs[i]; //G-parity directions
-  Params.twists[Nd-1] = 1; //APBC in time direction
-
-  std::vector<int> dirs4(Nd);
-  for(int i=0;i<Nd-1;i++) dirs4[i] = user_params.GparityDirs[i];
-  dirs4[Nd-1] = 0; //periodic gauge BC in time
-
-  GaugeImplPolicy::setDirections(dirs4); //gauge BC
-
-  //Run optional gauge field checksum checker and exit
-  if(file_load_check){
-    TheHMC.initializeGaugeFieldAndRNGs(Ud);
-    std::cout << GridLogMessage << " Done" << std::endl;
-    Grid_finalize();
-    return 0;
-  }
-
-
-  ////////////////////////////////////
-  // Collect actions
-  ////////////////////////////////////
-  ActionLevel<HMCWrapper::Field> Level1(1); //light quark + strange quark
-  ActionLevel<HMCWrapper::Field> Level2(8); //gauge (8 increments per step)
-
-
-  /////////////////////////////////////////////////////////////
-  // Light action
-  /////////////////////////////////////////////////////////////
-
-  FermionActionD Numerator_lD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD, light_mass,M5,Params);
-  FermionActionD Denominator_lD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD, pv_mass,M5,Params);
-
-  FermionActionF Numerator_lF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF, light_mass,M5,Params);
-  FermionActionF Denominator_lF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF, pv_mass,M5,Params);
-
-  RationalActionParams rat_act_params_l;
-  rat_act_params_l.inv_pow  = 2; // (M^dag M)^{1/2}
-  rat_act_params_l.precision= 60;
-  rat_act_params_l.MaxIter  = 10000;
-  user_params.rat_quo_l.Export(rat_act_params_l);
-  std::cout << GridLogMessage << " Light quark bounds check every " << rat_act_params_l.BoundsCheckFreq << " trajectories (avg)" << std::endl;
- 
-  MixedPrecRHMC Quotient_l(Denominator_lD, Numerator_lD, Denominator_lF, Numerator_lF, rat_act_params_l, user_params.rat_quo_l.reliable_update_freq);
-  //DoublePrecRHMC Quotient_l(Denominator_lD, Numerator_lD, rat_act_params_l);
-  Level1.push_back(&Quotient_l);
-
-
-  ////////////////////////////////////
-  // Strange action
-  ////////////////////////////////////
-  FermionActionD Numerator_sD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD,strange_mass,M5,Params);
-  FermionActionD Denominator_sD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD, pv_mass,M5,Params);
-
-  FermionActionF Numerator_sF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,strange_mass,M5,Params);
-  FermionActionF Denominator_sF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF, pv_mass,M5,Params);
-
-  RationalActionParams rat_act_params_s;
-  rat_act_params_s.inv_pow  = 4; // (M^dag M)^{1/4}
-  rat_act_params_s.precision= 60;
-  rat_act_params_s.MaxIter  = 10000;
-  user_params.rat_quo_s.Export(rat_act_params_s);
-  std::cout << GridLogMessage << " Heavy quark bounds check every " << rat_act_params_l.BoundsCheckFreq << " trajectories (avg)" << std::endl;
-
-  MixedPrecRHMC Quotient_s(Denominator_sD, Numerator_sD, Denominator_sF, Numerator_sF, rat_act_params_s, user_params.rat_quo_s.reliable_update_freq); 
-  //DoublePrecRHMC Quotient_s(Denominator_sD, Numerator_sD, rat_act_params_s); 
-  Level1.push_back(&Quotient_s);  
-
-
-  /////////////////////////////////////////////////////////////
-  // Gauge action
-  /////////////////////////////////////////////////////////////
-  Level2.push_back(&GaugeAction);
-  TheHMC.TheAction.push_back(Level1);
-  TheHMC.TheAction.push_back(Level2);
-  std::cout << GridLogMessage << " Action complete "<< std::endl;
-
-
-  //Action tuning
-  bool tune_rhmc_l=false, tune_rhmc_s=false, eigenrange_l=false, eigenrange_s=false; 
-  std::string lanc_params_l, lanc_params_s;
-  for(int i=1;i<argc;i++){
-    std::string sarg(argv[i]);
-    if(sarg == "--tune_rhmc_l") tune_rhmc_l=true;
-    else if(sarg == "--tune_rhmc_s") tune_rhmc_s=true;
-    else if(sarg == "--eigenrange_l"){
-      assert(i < argc-1);
-      eigenrange_l=true;
-      lanc_params_l = argv[i+1];
-    }
-    else if(sarg == "--eigenrange_s"){
-      assert(i < argc-1);
-      eigenrange_s=true;
-      lanc_params_s = argv[i+1];
-    }
-  }
-  if(tune_rhmc_l || tune_rhmc_s || eigenrange_l || eigenrange_s){
-    TheHMC.initializeGaugeFieldAndRNGs(Ud);
-    if(eigenrange_l) computeEigenvalues<FermionActionD, FermionFieldD>(lanc_params_l, FGridD, FrbGridD, Ud, Numerator_lD, TheHMC.Resources.GetParallelRNG());
-    if(eigenrange_s) computeEigenvalues<FermionActionD, FermionFieldD>(lanc_params_s, FGridD, FrbGridD, Ud, Numerator_sD, TheHMC.Resources.GetParallelRNG());
-    if(tune_rhmc_l) checkRHMC<FermionActionD, FermionFieldD, decltype(Quotient_l)>(FGridD, FrbGridD, Ud, Numerator_lD, Denominator_lD, Quotient_l, TheHMC.Resources.GetParallelRNG(), 2, "light");
-    if(tune_rhmc_s) checkRHMC<FermionActionD, FermionFieldD, decltype(Quotient_s)>(FGridD, FrbGridD, Ud, Numerator_sD, Denominator_sD, Quotient_s, TheHMC.Resources.GetParallelRNG(), 4, "strange");
-
-    std::cout << GridLogMessage << " Done" << std::endl;
-    Grid_finalize();
-    return 0;
-  }
-
-
-  //Run the HMC
-  std::cout << GridLogMessage << " Running the HMC "<< std::endl;
-  TheHMC.Run();
-
-  std::cout << GridLogMessage << " Done" << std::endl;
-  Grid_finalize();
-  return 0;
-} // main
-

HMC/DWF2p1fIwasakiGparityRHMCdouble.cc

@@ -1,473 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./HMC/DWF2p1fIwasakiGparity.cc
-
-Copyright (C) 2015-2016
-
-Author: Christopher Kelly <ckelly@bnl.gov>
-Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
-
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-/*  END LEGAL */
-#include <Grid/Grid.h>
-
-using namespace Grid;
-
-//2+1f DWF+I ensemble with G-parity BCs
-//designed to reproduce ensembles in https://arxiv.org/pdf/1908.08640.pdf
-struct RatQuoParameters: Serializable {
-  GRID_SERIALIZABLE_CLASS_MEMBERS(RatQuoParameters,
-				  double, bnd_lo,
-				  double, bnd_hi,
-				  Integer, action_degree,
-				  double, action_tolerance,
-				  Integer, md_degree,
-				  double, md_tolerance,
-				  Integer, reliable_update_freq,
-				  Integer, bnd_check_freq);
-  RatQuoParameters() { 
-    bnd_lo = 1e-2;
-    bnd_hi = 30;
-    action_degree = 10;
-    action_tolerance = 1e-10;
-    md_degree = 10;
-    md_tolerance = 1e-8;
-    bnd_check_freq = 20;
-    reliable_update_freq = 50;
-  }
-
-  void Export(RationalActionParams &into) const{
-    into.lo = bnd_lo;
-    into.hi = bnd_hi;
-    into.action_degree = action_degree;
-    into.action_tolerance = action_tolerance;
-    into.md_degree = md_degree;
-    into.md_tolerance = md_tolerance;
-    into.BoundsCheckFreq = bnd_check_freq;
-  }
-};
-
-
-struct EvolParameters: Serializable {
-  GRID_SERIALIZABLE_CLASS_MEMBERS(EvolParameters,
-                                  Integer, StartTrajectory,
-                                  Integer, Trajectories,
-				  Integer, SaveInterval,
-				  Integer, Steps,
-                                  bool, MetropolisTest,
-				  std::string, StartingType,
-				  std::vector<Integer>, GparityDirs,
-				  RatQuoParameters, rat_quo_l,
-				  RatQuoParameters, rat_quo_s);
-
-  EvolParameters() {
-    //For initial thermalization; afterwards user should switch Metropolis on and use StartingType=CheckpointStart
-    MetropolisTest    = false;
-    StartTrajectory   = 0;
-    Trajectories      = 50;
-    SaveInterval = 5;
-    StartingType      = "ColdStart";
-    GparityDirs.resize(3, 1); //1 for G-parity, 0 for periodic
-    Steps = 5;
-  }
-};
-
-bool fileExists(const std::string &fn){
-  std::ifstream f(fn);
-  return f.good();
-}
-
-
-
-
-struct LanczosParameters: Serializable {
-  GRID_SERIALIZABLE_CLASS_MEMBERS(LanczosParameters,
-				  double, alpha,
-				  double, beta,
-				  double, mu,
-				  int, ord,
-				  int, n_stop,
-				  int, n_want,
-				  int, n_use,
-				  double, tolerance);
-
-  LanczosParameters() {
-    alpha = 35;
-    beta = 5;
-    mu = 0;
-    ord = 100;
-    n_stop = 10;
-    n_want = 10;
-    n_use = 15;
-    tolerance = 1e-6;
-  }
-};
-
-
-
-template<typename FermionActionD, typename FermionFieldD>
-void computeEigenvalues(std::string param_file,
-			GridCartesian* Grid, GridRedBlackCartesian* rbGrid, const LatticeGaugeFieldD &latt,  //expect lattice to have been initialized to something
-			FermionActionD &action, GridParallelRNG &rng){
-  
-  LanczosParameters params;
-  if(fileExists(param_file)){
-    std::cout << GridLogMessage << " Reading " << param_file << std::endl;
-    Grid::XmlReader rd(param_file);
-    read(rd, "LanczosParameters", params);
-  }else if(!GlobalSharedMemory::WorldRank){
-    std::cout << GridLogMessage << " File " << param_file << " does not exist" << std::endl;
-    std::cout << GridLogMessage << " Writing xml template to " << param_file << ".templ" << std::endl;
-    Grid::XmlWriter wr(param_file + ".templ");
-    write(wr, "LanczosParameters", params);
-  }
-
-  FermionFieldD gauss_o(rbGrid);
-  FermionFieldD gauss(Grid);
-  gaussian(rng, gauss);
-  pickCheckerboard(Odd, gauss_o, gauss);
-
-  action.ImportGauge(latt);
-
-  SchurDiagMooeeOperator<FermionActionD, FermionFieldD> hermop(action);
-  PlainHermOp<FermionFieldD> hermop_wrap(hermop);
-  //ChebyshevLanczos<FermionFieldD> Cheb(params.alpha, params.beta, params.mu, params.ord);
-  assert(params.mu == 0.0);
-
-  Chebyshev<FermionFieldD> Cheb(params.beta*params.beta, params.alpha*params.alpha, params.ord+1);
-  FunctionHermOp<FermionFieldD> Cheb_wrap(Cheb, hermop);
-
-  std::cout << "IRL: alpha=" << params.alpha << " beta=" << params.beta << " mu=" << params.mu << " ord=" << params.ord << std::endl;
-  ImplicitlyRestartedLanczos<FermionFieldD> IRL(Cheb_wrap, hermop_wrap, params.n_stop, params.n_want, params.n_use, params.tolerance, 10000);
-
-  std::vector<RealD> eval(params.n_use);
-  std::vector<FermionFieldD> evec(params.n_use, rbGrid);
-  int Nconv;
-  IRL.calc(eval, evec, gauss_o, Nconv);
-
-  std::cout << "Eigenvalues:" << std::endl;
-  for(int i=0;i<params.n_want;i++){
-    std::cout << i << " " << eval[i] << std::endl;
-  }
-}
-
-
-//Check the quality of the RHMC approx
-template<typename FermionActionD, typename FermionFieldD, typename RHMCtype>
-void checkRHMC(GridCartesian* Grid, GridRedBlackCartesian* rbGrid, const LatticeGaugeFieldD &latt,  //expect lattice to have been initialized to something
-	       FermionActionD &numOp, FermionActionD &denOp, RHMCtype &rhmc, GridParallelRNG &rng,
-	       int inv_pow, const std::string &quark_descr){
-
-  FermionFieldD gauss_o(rbGrid);
-  FermionFieldD gauss(Grid);
-  gaussian(rng, gauss);
-  pickCheckerboard(Odd, gauss_o, gauss);
-
-  numOp.ImportGauge(latt);
-  denOp.ImportGauge(latt);
-
-  typedef typename FermionActionD::Impl_t FermionImplPolicyD;
-  SchurDifferentiableOperator<FermionImplPolicyD> MdagM(numOp);
-  SchurDifferentiableOperator<FermionImplPolicyD> VdagV(denOp);
-      
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegPowerAction); //use large tolerance to prevent exit on fail; we are trying to tune here!
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegHalfPowerAction);
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegPowerAction);
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegHalfPowerAction);
-  std::cout << "Finished: Checking quality of RHMC action approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-
-  std::cout << "-------------------------------------------------------------------------------" << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegPowerMD); 
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, MdagM,gauss_o, rhmc.ApproxNegHalfPowerMD);
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark numerator and power -1/" << 2*inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-  InversePowerBoundsCheck(inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegPowerMD);
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << inv_pow << std::endl;
-
-  std::cout << "Starting: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-  InversePowerBoundsCheck(2*inv_pow, 10000, 1e16, VdagV,gauss_o, rhmc.ApproxNegHalfPowerMD);
-  std::cout << "Finished: Checking quality of RHMC MD approx for " << quark_descr << " quark denominator and power -1/" << 2*inv_pow << std::endl;
-}
-
-
-
-
-
-
-
-
-
-int main(int argc, char **argv) {
-  Grid_init(&argc, &argv);
-  int threads = GridThread::GetThreads();
-  // here make a routine to print all the relevant information on the run
-  std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
-
-  std::string param_file = "params.xml";
-  bool file_load_check = false;
-  for(int i=1;i<argc;i++){
-    std::string sarg(argv[i]);
-    if(sarg == "--param_file"){
-      assert(i!=argc-1);
-      param_file = argv[i+1];
-    }else if(sarg == "--read_check"){ //check the fields load correctly and pass checksum/plaquette repro
-      file_load_check = true;
-    }
-  }
-
-  //Read the user parameters
-  EvolParameters user_params;
-  
-  if(fileExists(param_file)){
-    std::cout << GridLogMessage << " Reading " << param_file << std::endl;
-    Grid::XmlReader rd(param_file);
-    read(rd, "Params", user_params);
-  }else if(!GlobalSharedMemory::WorldRank){
-    std::cout << GridLogMessage << " File " << param_file << " does not exist" << std::endl;
-    std::cout << GridLogMessage << " Writing xml template to " << param_file << ".templ" << std::endl;
-    Grid::XmlWriter wr(param_file + ".templ");
-    write(wr, "Params", user_params);
-
-    std::cout << GridLogMessage << " Done" << std::endl;
-    Grid_finalize();
-    return 0;
-  }
-
-  //Check the parameters
-  if(user_params.GparityDirs.size() != Nd-1){
-    std::cerr << "Error in input parameters: expect GparityDirs to have size = " << Nd-1 << std::endl;
-    exit(1);
-  }
-  for(int i=0;i<Nd-1;i++)
-    if(user_params.GparityDirs[i] != 0 && user_params.GparityDirs[i] != 1){
-      std::cerr << "Error in input parameters: expect GparityDirs values to be 0 (periodic) or 1 (G-parity)" << std::endl;
-      exit(1);
-    }
-
-   // Typedefs to simplify notation
-  typedef GparityDomainWallFermionD FermionActionD;
-  typedef typename FermionActionD::Impl_t FermionImplPolicyD;
-  typedef typename FermionActionD::FermionField FermionFieldD;
-
-  typedef GparityDomainWallFermionF FermionActionF;
-  typedef typename FermionActionF::Impl_t FermionImplPolicyF;
-  typedef typename FermionActionF::FermionField FermionFieldF;
-
-  typedef GeneralEvenOddRatioRationalMixedPrecPseudoFermionAction<FermionImplPolicyD,FermionImplPolicyF> MixedPrecRHMC;
-  typedef GeneralEvenOddRatioRationalPseudoFermionAction<FermionImplPolicyD> DoublePrecRHMC;
-
-  //::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-  IntegratorParameters MD;
-  typedef ConjugateHMCRunnerD<MinimumNorm2> HMCWrapper; //NB: This is the "Omelyan integrator"
-  typedef HMCWrapper::ImplPolicy GaugeImplPolicy;
-  MD.name    = std::string("MinimumNorm2");
-  MD.MDsteps = user_params.Steps;
-  MD.trajL   = 1.0;
-
-  HMCparameters HMCparams;
-  HMCparams.StartTrajectory  = user_params.StartTrajectory;
-  HMCparams.Trajectories     = user_params.Trajectories;
-  HMCparams.NoMetropolisUntil= 0;
-  HMCparams.StartingType     = user_params.StartingType;
-  HMCparams.MetropolisTest = user_params.MetropolisTest;
-  HMCparams.MD = MD;
-  HMCWrapper TheHMC(HMCparams);
-
-  // Grid from the command line arguments --grid and --mpi
-  TheHMC.Resources.AddFourDimGrid("gauge"); // use default simd lanes decomposition
-
-  CheckpointerParameters CPparams;
-  CPparams.config_prefix = "ckpoint_lat";
-  CPparams.rng_prefix    = "ckpoint_rng";
-  CPparams.saveInterval  = user_params.SaveInterval;
-  CPparams.format        = "IEEE64BIG";
-  TheHMC.Resources.LoadNerscCheckpointer(CPparams);
-
-  //Note that checkpointing saves the RNG state so that this initialization is required only for the very first configuration
-  RNGModuleParameters RNGpar;
-  RNGpar.serial_seeds = "1 2 3 4 5";
-  RNGpar.parallel_seeds = "6 7 8 9 10";
-  TheHMC.Resources.SetRNGSeeds(RNGpar);
-
-  typedef PlaquetteMod<GaugeImplPolicy> PlaqObs;
-  TheHMC.Resources.AddObservable<PlaqObs>();
-  //////////////////////////////////////////////
-
-  const int Ls      = 16;
-  Real beta         = 2.13;
-  Real light_mass   = 0.01;
-  Real strange_mass = 0.032;
-  Real pv_mass      = 1.0;
-  RealD M5  = 1.8;
-
-  //Setup the Grids
-  auto GridPtrD   = TheHMC.Resources.GetCartesian();
-  auto GridRBPtrD = TheHMC.Resources.GetRBCartesian();
-  auto FGridD     = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtrD);
-  auto FrbGridD   = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtrD);
-
-  GridCartesian* GridPtrF = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd, vComplexF::Nsimd()), GridDefaultMpi());
-  GridRedBlackCartesian* GridRBPtrF = SpaceTimeGrid::makeFourDimRedBlackGrid(GridPtrF);
-  auto FGridF     = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtrF);
-  auto FrbGridF   = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtrF);
-
-  ConjugateIwasakiGaugeActionD GaugeAction(beta);
-
-  // temporarily need a gauge field
-  LatticeGaugeFieldD Ud(GridPtrD);
-  LatticeGaugeFieldF Uf(GridPtrF);
- 
-  //Setup the BCs
-  FermionActionD::ImplParams Params;
-  for(int i=0;i<Nd-1;i++) Params.twists[i] = user_params.GparityDirs[i]; //G-parity directions
-  Params.twists[Nd-1] = 1; //APBC in time direction
-
-  std::vector<int> dirs4(Nd);
-  for(int i=0;i<Nd-1;i++) dirs4[i] = user_params.GparityDirs[i];
-  dirs4[Nd-1] = 0; //periodic gauge BC in time
-
-  GaugeImplPolicy::setDirections(dirs4); //gauge BC
-
-  //Run optional gauge field checksum checker and exit
-  if(file_load_check){
-    TheHMC.initializeGaugeFieldAndRNGs(Ud);
-    std::cout << GridLogMessage << " Done" << std::endl;
-    Grid_finalize();
-    return 0;
-  }
-
-
-  ////////////////////////////////////
-  // Collect actions
-  ////////////////////////////////////
-  ActionLevel<HMCWrapper::Field> Level1(1); //light quark + strange quark
-  ActionLevel<HMCWrapper::Field> Level2(8); //gauge (8 increments per step)
-
-
-  /////////////////////////////////////////////////////////////
-  // Light action
-  /////////////////////////////////////////////////////////////
-
-  FermionActionD Numerator_lD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD, light_mass,M5,Params);
-  FermionActionD Denominator_lD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD, pv_mass,M5,Params);
-
-  FermionActionF Numerator_lF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF, light_mass,M5,Params);
-  FermionActionF Denominator_lF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF, pv_mass,M5,Params);
-
-  RationalActionParams rat_act_params_l;
-  rat_act_params_l.inv_pow  = 2; // (M^dag M)^{1/2}
-  rat_act_params_l.precision= 60;
-  rat_act_params_l.MaxIter  = 10000;
-  user_params.rat_quo_l.Export(rat_act_params_l);
-  std::cout << GridLogMessage << " Light quark bounds check every " << rat_act_params_l.BoundsCheckFreq << " trajectories (avg)" << std::endl;
- 
-  //MixedPrecRHMC Quotient_l(Denominator_lD, Numerator_lD, Denominator_lF, Numerator_lF, rat_act_params_l, user_params.rat_quo_l.reliable_update_freq);
-  DoublePrecRHMC Quotient_l(Denominator_lD, Numerator_lD, rat_act_params_l);
-  Level1.push_back(&Quotient_l);
-
-
-  ////////////////////////////////////
-  // Strange action
-  ////////////////////////////////////
-  FermionActionD Numerator_sD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD,strange_mass,M5,Params);
-  FermionActionD Denominator_sD(Ud,*FGridD,*FrbGridD,*GridPtrD,*GridRBPtrD, pv_mass,M5,Params);
-
-  FermionActionF Numerator_sF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,strange_mass,M5,Params);
-  FermionActionF Denominator_sF(Uf,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF, pv_mass,M5,Params);
-
-  RationalActionParams rat_act_params_s;
-  rat_act_params_s.inv_pow  = 4; // (M^dag M)^{1/4}
-  rat_act_params_s.precision= 60;
-  rat_act_params_s.MaxIter  = 10000;
-  user_params.rat_quo_s.Export(rat_act_params_s);
-  std::cout << GridLogMessage << " Heavy quark bounds check every " << rat_act_params_l.BoundsCheckFreq << " trajectories (avg)" << std::endl;
-
-  //MixedPrecRHMC Quotient_s(Denominator_sD, Numerator_sD, Denominator_sF, Numerator_sF, rat_act_params_s, user_params.rat_quo_s.reliable_update_freq); 
-  DoublePrecRHMC Quotient_s(Denominator_sD, Numerator_sD, rat_act_params_s); 
-  Level1.push_back(&Quotient_s);  
-
-
-  /////////////////////////////////////////////////////////////
-  // Gauge action
-  /////////////////////////////////////////////////////////////
-  Level2.push_back(&GaugeAction);
-  TheHMC.TheAction.push_back(Level1);
-  TheHMC.TheAction.push_back(Level2);
-  std::cout << GridLogMessage << " Action complete "<< std::endl;
-
-
-  //Action tuning
-  bool tune_rhmc_l=false, tune_rhmc_s=false, eigenrange_l=false, eigenrange_s=false; 
-  std::string lanc_params_l, lanc_params_s;
-  for(int i=1;i<argc;i++){
-    std::string sarg(argv[i]);
-    if(sarg == "--tune_rhmc_l") tune_rhmc_l=true;
-    else if(sarg == "--tune_rhmc_s") tune_rhmc_s=true;
-    else if(sarg == "--eigenrange_l"){
-      assert(i < argc-1);
-      eigenrange_l=true;
-      lanc_params_l = argv[i+1];
-    }
-    else if(sarg == "--eigenrange_s"){
-      assert(i < argc-1);
-      eigenrange_s=true;
-      lanc_params_s = argv[i+1];
-    }
-  }
-  if(tune_rhmc_l || tune_rhmc_s || eigenrange_l || eigenrange_s){
-    TheHMC.initializeGaugeFieldAndRNGs(Ud);
-    if(eigenrange_l) computeEigenvalues<FermionActionD, FermionFieldD>(lanc_params_l, FGridD, FrbGridD, Ud, Numerator_lD, TheHMC.Resources.GetParallelRNG());
-    if(eigenrange_s) computeEigenvalues<FermionActionD, FermionFieldD>(lanc_params_s, FGridD, FrbGridD, Ud, Numerator_sD, TheHMC.Resources.GetParallelRNG());
-    if(tune_rhmc_l) checkRHMC<FermionActionD, FermionFieldD, decltype(Quotient_l)>(FGridD, FrbGridD, Ud, Numerator_lD, Denominator_lD, Quotient_l, TheHMC.Resources.GetParallelRNG(), 2, "light");
-    if(tune_rhmc_s) checkRHMC<FermionActionD, FermionFieldD, decltype(Quotient_s)>(FGridD, FrbGridD, Ud, Numerator_sD, Denominator_sD, Quotient_s, TheHMC.Resources.GetParallelRNG(), 4, "strange");
-
-    std::cout << GridLogMessage << " Done" << std::endl;
-    Grid_finalize();
-    return 0;
-  }
-
-
-  //Run the HMC
-  std::cout << GridLogMessage << " Running the HMC "<< std::endl;
-  TheHMC.Run();
-
-  std::cout << GridLogMessage << " Done" << std::endl;
-  Grid_finalize();
-  return 0;
-} // main
-

HMC/Mobius2f.cc

@@ -1,170 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./tests/Test_hmc_EODWFRatio.cc
-
-Copyright (C) 2015-2016
-
-Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
-Author: Guido Cossu <guido.cossu@ed.ac.uk>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-/*  END LEGAL */
-#include <Grid/Grid.h>
-
-int main(int argc, char **argv) {
-  using namespace Grid;
-
-  Grid_init(&argc, &argv);
-  int threads = GridThread::GetThreads();
-  // here make a routine to print all the relevant information on the run
-  std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
-
-   // Typedefs to simplify notation
-  typedef WilsonImplR FermionImplPolicy;
-  typedef MobiusFermionR FermionAction;
-  typedef typename FermionAction::FermionField FermionField;
-
-  typedef Grid::XmlReader       Serialiser;
-
-  //::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-  IntegratorParameters MD;
-  //  typedef GenericHMCRunner<LeapFrog> HMCWrapper;
-  //  MD.name    = std::string("Leap Frog");
-  //  typedef GenericHMCRunner<ForceGradient> HMCWrapper;
-  //  MD.name    = std::string("Force Gradient");
-  typedef GenericHMCRunner<MinimumNorm2> HMCWrapper;
-  MD.name    = std::string("MinimumNorm2");
-  MD.MDsteps = 12;
-  MD.trajL   = 1.0;
-
-  HMCparameters HMCparams;
-  HMCparams.StartTrajectory  = 17;
-  HMCparams.Trajectories     = 200;
-  HMCparams.NoMetropolisUntil=  0;
-  // "[HotStart, ColdStart, TepidStart, CheckpointStart]\n";
-  //  HMCparams.StartingType     =std::string("ColdStart");
-  HMCparams.StartingType     =std::string("CheckpointStart");
-  HMCparams.MD = MD;
-  HMCWrapper TheHMC(HMCparams);
-
-  // Grid from the command line arguments --grid and --mpi
-  TheHMC.Resources.AddFourDimGrid("gauge"); // use default simd lanes decomposition
-
-  CheckpointerParameters CPparams;
-  CPparams.config_prefix = "ckpoint_2fDWF_lat";
-  CPparams.rng_prefix    = "ckpoint_2fDWF_rng";
-  CPparams.saveInterval  = 1;
-  CPparams.format        = "IEEE64BIG";
-  TheHMC.Resources.LoadNerscCheckpointer(CPparams);
-
-  RNGModuleParameters RNGpar;
-  RNGpar.serial_seeds = "1 2 3 4 5";
-  RNGpar.parallel_seeds = "6 7 8 9 10";
-  TheHMC.Resources.SetRNGSeeds(RNGpar);
-
-  // Construct observables
-  // here there is too much indirection
-  typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
-  TheHMC.Resources.AddObservable<PlaqObs>();
-  //////////////////////////////////////////////
-
-  const int Ls      = 16;
-  Real beta         = 2.13;
-  Real light_mass   = 0.01;
-  Real pv_mass      = 1.0;
-  RealD M5  = 1.8;
-  RealD b   = 1.0;
-  RealD c   = 0.0;
-
-  std::vector<Real> hasenbusch({ 0.1, 0.4, 0.7 });
-
-  auto GridPtr   = TheHMC.Resources.GetCartesian();
-  auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
-  auto FGrid     = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtr);
-  auto FrbGrid   = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtr);
-
-  IwasakiGaugeActionR GaugeAction(beta);
-
-  // temporarily need a gauge field
-  LatticeGaugeField U(GridPtr);
-
-  // These lines are unecessary if BC are all periodic
-  std::vector<Complex> boundary = {1,1,1,-1};
-  FermionAction::ImplParams Params(boundary);
-
-  double StoppingCondition = 1e-10;
-  double MaxCGIterations = 30000;
-  ConjugateGradient<FermionField>  CG(StoppingCondition,MaxCGIterations);
-
-  ////////////////////////////////////
-  // Collect actions
-  ////////////////////////////////////
-  ActionLevel<HMCWrapper::Field> Level1(1);
-  ActionLevel<HMCWrapper::Field> Level2(8);
-
-  ////////////////////////////////////
-  // up down action
-  ////////////////////////////////////
-  std::vector<Real> light_den;
-  std::vector<Real> light_num;
-
-  int n_hasenbusch = hasenbusch.size();
-  light_den.push_back(light_mass);
-  for(int h=0;h<n_hasenbusch;h++){
-    light_den.push_back(hasenbusch[h]);
-    light_num.push_back(hasenbusch[h]);
-  }
-  light_num.push_back(pv_mass);
-
-  std::vector<FermionAction *> Numerators;
-  std::vector<FermionAction *> Denominators;
-  std::vector<TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy> *> Quotients;
-
-  for(int h=0;h<n_hasenbusch+1;h++){
-    std::cout << GridLogMessage << " 2f quotient Action  "<< light_num[h] << " / " << light_den[h]<< std::endl;
-    Numerators.push_back  (new FermionAction(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[h],M5,b,c, Params));
-    Denominators.push_back(new FermionAction(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[h],M5,b,c, Params));
-    Quotients.push_back   (new TwoFlavourEvenOddRatioPseudoFermionAction<FermionImplPolicy>(*Numerators[h],*Denominators[h],CG,CG));
-  }
-
-  for(int h=0;h<n_hasenbusch+1;h++){
-    Level1.push_back(Quotients[h]);
-  }
-
-  /////////////////////////////////////////////////////////////
-  // Gauge action
-  /////////////////////////////////////////////////////////////
-  Level2.push_back(&GaugeAction);
-  TheHMC.TheAction.push_back(Level1);
-  TheHMC.TheAction.push_back(Level2);
-  std::cout << GridLogMessage << " Action complete "<< std::endl;
-
-  /////////////////////////////////////////////////////////////
-  // HMC parameters are serialisable
-
-  std::cout << GridLogMessage << " Running the HMC "<< std::endl;
-  TheHMC.Run();  // no smearing
-
-  Grid_finalize();
-} // main
-
-
-

HMC/Mobius2f_DDHMC_mixed.cc

@@ -1,386 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-nnSource file: 
-
-Copyright (C) 2015-2016
-
-Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-/*  END LEGAL */
-#include <Grid/Grid.h>
-
-
-NAMESPACE_BEGIN(Grid);
-
-template<class Impl>
-class DomainLocalTwoFlavourEvenOddRatioPseudoFermionAction
-  : public TwoFlavourEvenOddRatioPseudoFermionAction<Impl>
-{
-public:
-  INHERIT_IMPL_TYPES(Impl);
-  Coordinate Block;
-  DomainDecomposition Domains;
-  DomainLocalTwoFlavourEvenOddRatioPseudoFermionAction(FermionOperator<Impl>  &_NumOp, 
-						       FermionOperator<Impl>  &_DenOp, 
-						       OperatorFunction<FermionField> & DS,
-						       OperatorFunction<FermionField> & AS,
-						       OperatorFunction<FermionField> & HS,
-						       Coordinate &_Block ) :
-    Block(_Block),
-    Domains(_Block),
-    TwoFlavourEvenOddRatioPseudoFermionAction<Impl>(_NumOp,_DenOp,DS,AS,HS)
-    {};
-  virtual void refreshRestrict(FermionField &eta)
-  {
-    Domains.ProjectDomain(eta,0);
-    DumpSliceNorm("refresh Restrict eta",eta);
-  };
-};
-
-#define MIXED_PRECISION
-
-NAMESPACE_END(Grid);
-
-int main(int argc, char **argv)
-{
-  using namespace Grid;
-
-  Grid_init(&argc, &argv);
-  int threads = GridThread::GetThreads();
-  // here make a routine to print all the relevant information on the run
-  std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
-
-   // Typedefs to simplify notation
-  typedef WilsonImplR FimplD;
-  typedef WilsonImplF FimplF;
-  typedef FermionOperator<FimplF> FermionOperatorF;
-  typedef FermionOperator<FimplD> FermionOperatorD;
-  typedef MobiusFermionR FermionActionD;
-  typedef MobiusFermionF FermionActionF;
-  typedef DirichletFermionOperator<WilsonImplR> DirichletFermionD;
-  typedef DirichletFermionOperator<WilsonImplF> DirichletFermionF;
-
-  typedef MobiusEOFAFermionR FermionEOFAAction;
-  typedef typename FermionActionD::FermionField FermionFieldD;
-  typedef typename FermionActionF::FermionField FermionFieldF;
-  
-  typedef SchurDiagMooeeOperator<FermionOperator<FimplF>,FermionFieldF> LinearOperatorF;
-  typedef SchurDiagMooeeOperator<FermionOperator<FimplD>,FermionFieldD> LinearOperatorD;
-  typedef SchurDiagMooeeDagOperator<FermionOperator<FimplF>,FermionFieldF> LinearOperatorDagF;
-  typedef SchurDiagMooeeDagOperator<FermionOperator<FimplD>,FermionFieldD> LinearOperatorDagD;
-  
-  typedef Grid::XmlReader       Serialiser;
-  
-  //::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-  IntegratorParameters MD;
-  //  typedef GenericHMCRunner<LeapFrog> HMCWrapper; 
-  //  MD.name    = std::string("Leap Frog");
-  //  typedef GenericHMCRunner<ForceGradient> HMCWrapper; 
-  //  MD.name    = std::string("Force Gradient");
-  typedef GenericHMCRunner<MinimumNorm2> HMCWrapper; 
-  /*
-  MD.name    = std::string("MinimumNorm2");
-  MD.MDsteps = 4; // dH = 0.08
-  //  MD.MDsteps = 3; // dH = 0.8
-  MD.trajL   = 1.0;
-  */
-  
-  HMCparameters HMCparams;
-  {
-    XmlReader  HMCrd("HMCparameters.xml");
-    read(HMCrd,"HMCparameters",HMCparams);
-    std::cout << GridLogMessage<< HMCparams <<std::endl;
-  }
-  HMCWrapper TheHMC(HMCparams);
-  /*
-  HMCparams.StartTrajectory  = 66;
-  HMCparams.Trajectories     = 200;
-  HMCparams.NoMetropolisUntil=  0;
-  //  "[HotStart, ColdStart, TepidStart, CheckpointStart]\n";
-  // HMCparams.StartingType     =std::string("ColdStart");
-  HMCparams.StartingType     =std::string("CheckpointStart");
-  HMCparams.MD = MD;
-  */
-
-  // Grid from the command line arguments --grid and --mpi
-  TheHMC.Resources.AddFourDimGrid("gauge"); // use default simd lanes decomposition
-  
-  CheckpointerParameters CPparams;
-  CPparams.config_prefix = "ckpoint_DDHMC_lat";
-  CPparams.rng_prefix    = "ckpoint_DDHMC_rng";
-  CPparams.saveInterval  = 1;
-  CPparams.format        = "IEEE64BIG";
-  TheHMC.Resources.LoadNerscCheckpointer(CPparams);
-
-  RNGModuleParameters RNGpar;
-  RNGpar.serial_seeds = "1 2 3 4 5";
-  RNGpar.parallel_seeds = "6 7 8 9 10";
-  TheHMC.Resources.SetRNGSeeds(RNGpar);
-
-  // Momentum Dirichlet
-  Coordinate Block({0,0,0,24});
-  
-  TheHMC.Resources.SetMomentumFilter(new DDHMCFilter<WilsonImplR::Field>(Block));
-  // Construct observables
-  // here there is too much indirection 
-  typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
-  TheHMC.Resources.AddObservable<PlaqObs>();
-  //////////////////////////////////////////////
-
-  const int Ls      = 16;
-  Real beta         = 2.13;
-  //  Real light_mass   = 0.04;
-  Real light_mass   = 0.01;
-  Real pv_mass      = 1.0;
-  RealD M5  = 1.8;
-  RealD b   = 1.0; 
-  RealD c   = 0.0;
-
-  std::vector<Real> hasenbusch({ 0.1, 0.4, 0.7 });
-  
-  auto GridPtr   = TheHMC.Resources.GetCartesian();
-  auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
-  auto FGrid     = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtr);
-  auto FrbGrid   = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtr);
-
-  Coordinate latt  = GridDefaultLatt();
-  Coordinate mpi   = GridDefaultMpi();
-  Coordinate simdF = GridDefaultSimd(Nd,vComplexF::Nsimd());
-  Coordinate simdD = GridDefaultSimd(Nd,vComplexD::Nsimd());
-
-  auto GridPtrF   = SpaceTimeGrid::makeFourDimGrid(latt,simdF,mpi);
-  auto GridRBPtrF = SpaceTimeGrid::makeFourDimRedBlackGrid(GridPtrF);
-  auto FGridF     = SpaceTimeGrid::makeFiveDimGrid(Ls,GridPtrF);
-  auto FrbGridF   = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,GridPtrF);
-
-  IwasakiGaugeActionR GaugeAction(beta);
-
-  // temporarily need a gauge field
-  LatticeGaugeField U(GridPtr);
-  LatticeGaugeFieldF UF(GridPtrF);
-
-  // These lines are unecessary if BC are all periodic
-  std::vector<Complex> boundary = {1,1,1,-1};
-  FermionActionD::ImplParams Params(boundary);
-  FermionActionD::ImplParams DirichletParams(boundary);
-  DirichletParams.locally_periodic=true;
-  
-  double ActionStoppingCondition     = 1e-10;
-  double DerivativeStoppingCondition = 1e-10;
-  //  double BoundaryDerivativeStoppingCondition = 1e-10; decent acceptance
-  double BoundaryDerivativeStoppingCondition = 1e-7;   // decent acceptance
-  //  double BoundaryDerivativeStoppingCondition = 1e-6;  // bit bigger not huge
-  //  double BoundaryDerivativeStoppingCondition = 1e-5; // Large dH poor acceptance
-  double MaxCGIterations = 30000;
-
-  ////////////////////////////////////
-  // Collect actions
-  ////////////////////////////////////
-  ActionLevel<HMCWrapper::Field> Level1(1);
-  ActionLevel<HMCWrapper::Field> Level2(3);
-  ActionLevel<HMCWrapper::Field> Level3(8);
-
-  ConjugateGradient<FermionFieldD>      ActionCG(ActionStoppingCondition,MaxCGIterations);
-  ConjugateGradient<FermionFieldD>  DerivativeCG(DerivativeStoppingCondition,MaxCGIterations);
-
-  ////////////////////////////////////
-  // up down action
-  ////////////////////////////////////
-  std::vector<Real> light_den;
-  std::vector<Real> light_num;
-
-  int n_hasenbusch = hasenbusch.size();
-  light_den.push_back(light_mass);
-  for(int h=0;h<n_hasenbusch;h++){
-    light_den.push_back(hasenbusch[h]);
-    light_num.push_back(hasenbusch[h]);
-  }
-  light_num.push_back(pv_mass);
-
-  //////////////////////////////////////////////////////////////
-  // Forced to replicate the MxPCG and DenominatorsF etc.. because
-  // there is no convenient way to "Clone" physics params from double op
-  // into single op for any operator pair.
-  // Same issue prevents using MxPCG in the Heatbath step
-  //////////////////////////////////////////////////////////////
-
-  /////////////////////////////////////////////////
-  // These are consumed/owned by the Dirichlet wrappers
-  /////////////////////////////////////////////////
-  std::vector<FermionActionD *> DNumeratorsD;
-  std::vector<FermionActionF *> DNumeratorsF;
-  std::vector<FermionActionD *> DDenominatorsD;
-  std::vector<FermionActionF *> DDenominatorsF;
-
-  /////////////////////////////////////////////////
-  // Dirichlet wrappers
-  /////////////////////////////////////////////////
-  std::vector<DirichletFermionD *> DirichletNumeratorsD;
-  std::vector<DirichletFermionF *> DirichletNumeratorsF;
-  std::vector<DirichletFermionD *> DirichletDenominatorsD;
-  std::vector<DirichletFermionF *> DirichletDenominatorsF;
-  
-  std::vector<DomainLocalTwoFlavourEvenOddRatioPseudoFermionAction<FimplD> *> Quotients;
-
-  typedef MixedPrecisionConjugateGradientOperatorFunction<FermionOperatorD,
-							  FermionOperatorF,
-							  LinearOperatorD,
-							  LinearOperatorF> MxPCG;
-  std::vector<MxPCG *> ActionMPCG;
-  std::vector<MxPCG *> MPCG;
-  std::vector<LinearOperatorD *> LinOpD;
-  std::vector<LinearOperatorF *> LinOpF; 
-
-  int MX_inner = 1000;
-  RealD MX_tol = 1.0e-5;
-
-  for(int h=0;h<n_hasenbusch+1;h++){
-
-    std::cout << GridLogMessage << " 2f quotient Action  "<< light_num[h] << " / " << light_den[h]<< std::endl;
-
-    DNumeratorsD.push_back (new FermionActionD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[h],M5,b,c, DirichletParams));
-    DNumeratorsF.push_back (new FermionActionF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_num[h],M5,b,c, DirichletParams));
-    DDenominatorsD.push_back(new FermionActionD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[h],M5,b,c, DirichletParams));
-    DDenominatorsF.push_back(new FermionActionF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_den[h],M5,b,c, DirichletParams));
-
-    DirichletNumeratorsD.push_back  (new  DirichletFermionD(*DNumeratorsD[h],Block));
-    DirichletNumeratorsF.push_back  (new  DirichletFermionF(*DNumeratorsF[h],Block));
-    DirichletDenominatorsD.push_back(new  DirichletFermionD(*DDenominatorsD[h],Block));
-    DirichletDenominatorsF.push_back(new  DirichletFermionF(*DDenominatorsF[h],Block));
-
-    // Dirichlet Schur even odd MpsDagMpc operators on local domains
-    LinOpD.push_back(new LinearOperatorD(*DirichletDenominatorsD[h]));
-    LinOpF.push_back(new LinearOperatorF(*DirichletDenominatorsF[h]));
-
-    // Derivative
-    MPCG.push_back(new MxPCG(DerivativeStoppingCondition,MX_tol,
-			     MX_inner,
-			     MaxCGIterations,
-			     FrbGridF,
-			     *DirichletDenominatorsF[h],*DirichletDenominatorsD[h],
-			     *LinOpF[h], *LinOpD[h]) );
-
-    // Action
-    ActionMPCG.push_back(new MxPCG(ActionStoppingCondition,MX_tol,
-				   MX_inner,
-				   MaxCGIterations,
-				   FrbGridF,
-				   *DirichletDenominatorsF[h],*DirichletDenominatorsD[h],
-				   *LinOpF[h], *LinOpD[h]) );
-    
-    ////////////////////////////////////////////////////////////////////////////
-    // Standard CG for 2f force
-    ////////////////////////////////////////////////////////////////////////////
-    Quotients.push_back   (new
-			   DomainLocalTwoFlavourEvenOddRatioPseudoFermionAction<FimplD>
-			   (*DirichletNumeratorsD[h],
-			    *DirichletDenominatorsD[h],
-			    *MPCG[h],
-			    *ActionMPCG[h],
-			    ActionCG,Block));
-
-    Level2.push_back(Quotients[h]);
-  }
-
-  /////////////////////////////////////////////////////////////
-  // Boundary action
-  /////////////////////////////////////////////////////////////
-
-  int l_idx = 0;
-  int pv_idx = n_hasenbusch;
-  RealD h_mass = 0.012;
-  std::cout << GridLogMessage<<" Boundary action masses " <<light_num[l_idx]<<" / "<<light_den[pv_idx]<<std::endl;
-
-
-  // OmegaBar cross domain boundary and is used in Boundary operator, so no locally_periodic hack in the boundary det
-  // Dirichlet is applied in gauge link only. OmegaBar solve is too expensive. Monitor cost.
-  FermionActionD    PeriNumeratorD  (U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[pv_idx],M5,b,c, Params);
-  FermionActionF    PeriNumeratorF  (UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_num[pv_idx],M5,b,c, Params);
-  FermionActionD    DirichletNumeratorDD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_num[pv_idx],M5,b,c, Params);
-  FermionActionF    DirichletNumeratorFF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_num[pv_idx],M5,b,c, Params);
-  DirichletFermionD DirichletNumeratorD  (DirichletNumeratorDD,Block);
-  DirichletFermionF DirichletNumeratorF  (DirichletNumeratorFF,Block);
-
-  FermionActionD    PeriDenominatorD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[l_idx] ,M5,b,c, Params);
-  FermionActionF    PeriDenominatorF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_den[l_idx] ,M5,b,c, Params);
-  FermionActionD    DirichletDenominatorDD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,light_den[l_idx] ,M5,b,c, Params);
-  FermionActionF    DirichletDenominatorFF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,light_den[l_idx] ,M5,b,c, Params);
-  DirichletFermionD DirichletDenominatorD(DirichletDenominatorDD,Block);
-  DirichletFermionF DirichletDenominatorF(DirichletDenominatorFF,Block);
-
-  FermionActionD    PeriHasenD  (U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,h_mass ,M5,b,c, Params);
-  FermionActionF    PeriHasenF  (UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,h_mass,M5,b,c, Params);
-  FermionActionD    DHasenD(U,*FGrid,*FrbGrid,*GridPtr,*GridRBPtr,h_mass,M5,b,c, Params);
-  FermionActionF    DHasenF(UF,*FGridF,*FrbGridF,*GridPtrF,*GridRBPtrF,h_mass,M5,b,c, Params);
-  DirichletFermionD DirichletHasenD(DHasenD,Block);
-  DirichletFermionF DirichletHasenF(DHasenF,Block);
-  
-  SchurFactoredFermionOperator<FimplD,FimplF> BoundaryNumerator(PeriNumeratorD,PeriNumeratorF,
-								DirichletNumeratorD,DirichletNumeratorF,
-								Block);
-
-  SchurFactoredFermionOperator<FimplD,FimplF> BoundaryDenominator(PeriDenominatorD,PeriDenominatorF,
-								  DirichletDenominatorD,DirichletDenominatorF,
-								  Block);
-
-  SchurFactoredFermionOperator<FimplD,FimplF> BoundaryHasen(PeriHasenD,PeriHasenF,
-							    DirichletHasenD,DirichletHasenF,
-							    Block);
-
-#if 1
-  std::cout << GridLogMessage << " Boundary NO ratio "<< std::endl;
-  MX_tol = 1.0e-5;
-  Level1.push_back(new
-		   DomainDecomposedBoundaryTwoFlavourPseudoFermion<FimplD,FimplF>
-		   (BoundaryDenominator,
-		    BoundaryDerivativeStoppingCondition,ActionStoppingCondition,MX_tol));
-  Level1.push_back(new
-		   DomainDecomposedBoundaryTwoFlavourBosonPseudoFermion<FimplD,FimplF>
-		   (BoundaryNumerator,
-		    BoundaryDerivativeStoppingCondition,ActionStoppingCondition,MX_tol));
-#else
-  Level1.push_back(new
-		   DomainDecomposedBoundaryTwoFlavourRatioPseudoFermion<FimplD,FimplF>
-		   (BoundaryNumerator,
-		    BoundaryDenominator,
-		    BoundaryDerivativeStoppingCondition,ActionStoppingCondition));
-#endif
-
-  /////////////////////////////////////////////////////////////
-  // Gauge action
-  /////////////////////////////////////////////////////////////
-  Level3.push_back(&GaugeAction);
-  TheHMC.TheAction.push_back(Level1);
-  TheHMC.TheAction.push_back(Level2);
-  TheHMC.TheAction.push_back(Level3);
-  std::cout << GridLogMessage << " Action complete "<< std::endl;
-
-  /////////////////////////////////////////////////////////////
-  // HMC parameters are serialisable
-  std::cout << GridLogMessage << " Running the HMC "<< std::endl;
-  TheHMC.Run();  // no smearing
-
-  Grid_finalize();
-} // main
-
-
-

HMC/Mobius2p1fEOFA.cc

@@ -33,8 +33,137 @@ directory
 #ifdef GRID_DEFAULT_PRECISION_DOUBLE
 #define MIXED_PRECISION
 #endif
-#include <Grid/qcd/utils/MixedPrecisionOperatorFunction.h>
 
+NAMESPACE_BEGIN(Grid);
+
+  /*
+   * Need a plan for gauge field update for mixed precision in HMC                      (2x speed up)
+   *    -- Store the single prec action operator.
+   *    -- Clone the gauge field from the operator function argument.
+   *    -- Build the mixed precision operator dynamically from the passed operator and single prec clone.
+   */
+
+  template<class FermionOperatorD, class FermionOperatorF, class SchurOperatorD, class  SchurOperatorF> 
+  class MixedPrecisionConjugateGradientOperatorFunction : public OperatorFunction<typename FermionOperatorD::FermionField> {
+  public:
+    typedef typename FermionOperatorD::FermionField FieldD;
+    typedef typename FermionOperatorF::FermionField FieldF;
+
+    using OperatorFunction<FieldD>::operator();
+
+    RealD   Tolerance;
+    RealD   InnerTolerance; //Initial tolerance for inner CG. Defaults to Tolerance but can be changed
+    Integer MaxInnerIterations;
+    Integer MaxOuterIterations;
+    GridBase* SinglePrecGrid4; //Grid for single-precision fields
+    GridBase* SinglePrecGrid5; //Grid for single-precision fields
+    RealD OuterLoopNormMult; //Stop the outer loop and move to a final double prec solve when the residual is OuterLoopNormMult * Tolerance
+
+    FermionOperatorF &FermOpF;
+    FermionOperatorD &FermOpD;;
+    SchurOperatorF &LinOpF;
+    SchurOperatorD &LinOpD;
+
+    Integer TotalInnerIterations; //Number of inner CG iterations
+    Integer TotalOuterIterations; //Number of restarts
+    Integer TotalFinalStepIterations; //Number of CG iterations in final patch-up step
+
+    MixedPrecisionConjugateGradientOperatorFunction(RealD tol, 
+						    Integer maxinnerit, 
+						    Integer maxouterit, 
+						    GridBase* _sp_grid4, 
+						    GridBase* _sp_grid5, 
+						    FermionOperatorF &_FermOpF,
+						    FermionOperatorD &_FermOpD,
+						    SchurOperatorF   &_LinOpF,
+						    SchurOperatorD   &_LinOpD): 
+      LinOpF(_LinOpF),
+      LinOpD(_LinOpD),
+      FermOpF(_FermOpF),
+      FermOpD(_FermOpD),
+      Tolerance(tol), 
+      InnerTolerance(tol), 
+      MaxInnerIterations(maxinnerit), 
+      MaxOuterIterations(maxouterit), 
+      SinglePrecGrid4(_sp_grid4),
+      SinglePrecGrid5(_sp_grid5),
+      OuterLoopNormMult(100.) 
+    { 
+      /* Debugging instances of objects; references are stored
+      std::cout << GridLogMessage << " Mixed precision CG wrapper LinOpF " <<std::hex<< &LinOpF<<std::dec <<std::endl;
+      std::cout << GridLogMessage << " Mixed precision CG wrapper LinOpD " <<std::hex<< &LinOpD<<std::dec <<std::endl;
+      std::cout << GridLogMessage << " Mixed precision CG wrapper FermOpF " <<std::hex<< &FermOpF<<std::dec <<std::endl;
+      std::cout << GridLogMessage << " Mixed precision CG wrapper FermOpD " <<std::hex<< &FermOpD<<std::dec <<std::endl;
+      */
+    };
+
+    void operator()(LinearOperatorBase<FieldD> &LinOpU, const FieldD &src, FieldD &psi) {
+
+      std::cout << GridLogMessage << " Mixed precision CG wrapper operator() "<<std::endl;
+
+      SchurOperatorD * SchurOpU = static_cast<SchurOperatorD *>(&LinOpU);
+      
+      //      std::cout << GridLogMessage << " Mixed precision CG wrapper operator() FermOpU " <<std::hex<< &(SchurOpU->_Mat)<<std::dec <<std::endl;
+      //      std::cout << GridLogMessage << " Mixed precision CG wrapper operator() FermOpD " <<std::hex<< &(LinOpD._Mat) <<std::dec <<std::endl;
+      // Assumption made in code to extract gauge field
+      // We could avoid storing LinopD reference alltogether ?
+      assert(&(SchurOpU->_Mat)==&(LinOpD._Mat));
+
+      ////////////////////////////////////////////////////////////////////////////////////
+      // Must snarf a single precision copy of the gauge field in Linop_d argument
+      ////////////////////////////////////////////////////////////////////////////////////
+      typedef typename FermionOperatorF::GaugeField GaugeFieldF;
+      typedef typename FermionOperatorF::GaugeLinkField GaugeLinkFieldF;
+      typedef typename FermionOperatorD::GaugeField GaugeFieldD;
+      typedef typename FermionOperatorD::GaugeLinkField GaugeLinkFieldD;
+
+      GridBase * GridPtrF = SinglePrecGrid4;
+      GridBase * GridPtrD = FermOpD.Umu.Grid();
+      GaugeFieldF     U_f  (GridPtrF);
+      GaugeLinkFieldF Umu_f(GridPtrF);
+      //      std::cout << " Dim gauge field "<<GridPtrF->Nd()<<std::endl; // 4d
+      //      std::cout << " Dim gauge field "<<GridPtrD->Nd()<<std::endl; // 4d
+
+      ////////////////////////////////////////////////////////////////////////////////////
+      // Moving this to a Clone method of fermion operator would allow to duplicate the 
+      // physics parameters and decrease gauge field copies
+      ////////////////////////////////////////////////////////////////////////////////////
+      GaugeLinkFieldD Umu_d(GridPtrD);
+      for(int mu=0;mu<Nd*2;mu++){ 
+	Umu_d = PeekIndex<LorentzIndex>(FermOpD.Umu, mu);
+	precisionChange(Umu_f,Umu_d);
+	PokeIndex<LorentzIndex>(FermOpF.Umu, Umu_f, mu);
+      }
+      pickCheckerboard(Even,FermOpF.UmuEven,FermOpF.Umu);
+      pickCheckerboard(Odd ,FermOpF.UmuOdd ,FermOpF.Umu);
+
+      ////////////////////////////////////////////////////////////////////////////////////
+      // Could test to make sure that LinOpF and LinOpD agree to single prec?
+      ////////////////////////////////////////////////////////////////////////////////////
+      /*
+      GridBase *Fgrid = psi._grid;
+      FieldD tmp2(Fgrid);
+      FieldD tmp1(Fgrid);
+      LinOpU.Op(src,tmp1);
+      LinOpD.Op(src,tmp2);
+      std::cout << " Double gauge field "<< norm2(FermOpD.Umu)<<std::endl;
+      std::cout << " Single gauge field "<< norm2(FermOpF.Umu)<<std::endl;
+      std::cout << " Test of operators "<<norm2(tmp1)<<std::endl;
+      std::cout << " Test of operators "<<norm2(tmp2)<<std::endl;
+      tmp1=tmp1-tmp2;
+      std::cout << " Test of operators diff "<<norm2(tmp1)<<std::endl;
+      */
+
+      ////////////////////////////////////////////////////////////////////////////////////
+      // Make a mixed precision conjugate gradient
+      ////////////////////////////////////////////////////////////////////////////////////
+      MixedPrecisionConjugateGradient<FieldD,FieldF> MPCG(Tolerance,MaxInnerIterations,MaxOuterIterations,SinglePrecGrid5,LinOpF,LinOpD);
+      std::cout << GridLogMessage << "Calling mixed precision Conjugate Gradient" <<std::endl;
+      MPCG(src,psi);
+    }
+  };
+
+NAMESPACE_END(Grid);
 
 int main(int argc, char **argv) {
   using namespace Grid;
@@ -61,18 +190,18 @@ int main(int argc, char **argv) {
   //  MD.name    = std::string("Leap Frog");
   typedef GenericHMCRunner<ForceGradient> HMCWrapper; 
   MD.name    = std::string("Force Gradient");
-  //typedef GenericHMCRunner<MinimumNorm2> HMCWrapper; 
-  //MD.name    = std::string("MinimumNorm2");
-  MD.MDsteps = 15;
+  //  typedef GenericHMCRunner<MinimumNorm2> HMCWrapper; 
+  //  MD.name    = std::string("MinimumNorm2");
+  MD.MDsteps = 6;
   MD.trajL   = 1.0;
   
   HMCparameters HMCparams;
-  HMCparams.StartTrajectory  = 0;
+  HMCparams.StartTrajectory  = 590;
   HMCparams.Trajectories     = 1000;
-  HMCparams.NoMetropolisUntil=  10;
+  HMCparams.NoMetropolisUntil=  0;
   //  "[HotStart, ColdStart, TepidStart, CheckpointStart]\n";
-  HMCparams.StartingType     =std::string("ColdStart");
-  //HMCparams.StartingType     =std::string("CheckpointStart");
+  //  HMCparams.StartingType     =std::string("ColdStart");
+  HMCparams.StartingType     =std::string("CheckpointStart");
   HMCparams.MD = MD;
   HMCWrapper TheHMC(HMCparams);
 
@@ -80,9 +209,9 @@ int main(int argc, char **argv) {
   TheHMC.Resources.AddFourDimGrid("gauge"); // use default simd lanes decomposition
   
   CheckpointerParameters CPparams;
-  CPparams.config_prefix = "ckpoint_EOFA_lat";
-  CPparams.rng_prefix    = "ckpoint_EOFA_rng";
-  CPparams.saveInterval  = 1;
+  CPparams.config_prefix = "ckpoint_EODWF_lat";
+  CPparams.rng_prefix    = "ckpoint_EODWF_rng";
+  CPparams.saveInterval  = 10;
   CPparams.format        = "IEEE64BIG";
   TheHMC.Resources.LoadNerscCheckpointer(CPparams);
 
@@ -97,16 +226,16 @@ int main(int argc, char **argv) {
   TheHMC.Resources.AddObservable<PlaqObs>();
   //////////////////////////////////////////////
 
-  const int Ls      = 24;
+  const int Ls      = 16;
   Real beta         = 2.13;
-  Real light_mass   = 0.005;
-  Real strange_mass = 0.0362;
+  Real light_mass   = 0.01;
+  Real strange_mass = 0.04;
   Real pv_mass      = 1.0;
   RealD M5  = 1.8;
-  RealD b   = 1.5; 
-  RealD c   = 0.5;
+  RealD b   = 1.0; 
+  RealD c   = 0.0;
 
-  std::vector<Real> hasenbusch({ 0.02, 0.2, 0.6 });
+  std::vector<Real> hasenbusch({ 0.1, 0.3, 0.6 });
 
   auto GridPtr   = TheHMC.Resources.GetCartesian();
   auto GridRBPtr = TheHMC.Resources.GetRBCartesian();
@@ -134,7 +263,7 @@ int main(int argc, char **argv) {
   FermionActionF::ImplParams ParamsF(boundary);
   
   double ActionStoppingCondition     = 1e-10;
-  double DerivativeStoppingCondition = 1e-8;
+  double DerivativeStoppingCondition = 1e-6;
   double MaxCGIterations = 30000;
 
   ////////////////////////////////////
@@ -173,37 +302,40 @@ int main(int argc, char **argv) {
   ConjugateGradient<FermionField>  DerivativeCG(DerivativeStoppingCondition,MaxCGIterations);
 #ifdef MIXED_PRECISION
   const int MX_inner = 1000;
-  const RealD MX_tol = 1.0e-6;
   // Mixed precision EOFA
   LinearOperatorEOFAD Strange_LinOp_L (Strange_Op_L);
   LinearOperatorEOFAD Strange_LinOp_R (Strange_Op_R);
   LinearOperatorEOFAF Strange_LinOp_LF(Strange_Op_LF);
   LinearOperatorEOFAF Strange_LinOp_RF(Strange_Op_RF);
 
-  MxPCG_EOFA ActionCGL(ActionStoppingCondition,MX_tol,
+  MxPCG_EOFA ActionCGL(ActionStoppingCondition,
 		       MX_inner,
 		       MaxCGIterations,
+		       GridPtrF,
 		       FrbGridF,
 		       Strange_Op_LF,Strange_Op_L,
 		       Strange_LinOp_LF,Strange_LinOp_L);
 
-  MxPCG_EOFA DerivativeCGL(DerivativeStoppingCondition,MX_tol,
+  MxPCG_EOFA DerivativeCGL(DerivativeStoppingCondition,
 			   MX_inner,
 			   MaxCGIterations,
+			   GridPtrF,
 			   FrbGridF,
 			   Strange_Op_LF,Strange_Op_L,
 			   Strange_LinOp_LF,Strange_LinOp_L);
   
-  MxPCG_EOFA ActionCGR(ActionStoppingCondition,MX_tol,
+  MxPCG_EOFA ActionCGR(ActionStoppingCondition,
 		       MX_inner,
 		       MaxCGIterations,
+		       GridPtrF,
 		       FrbGridF,
 		       Strange_Op_RF,Strange_Op_R,
 		       Strange_LinOp_RF,Strange_LinOp_R);
   
-  MxPCG_EOFA DerivativeCGR(DerivativeStoppingCondition,MX_tol,
+  MxPCG_EOFA DerivativeCGR(DerivativeStoppingCondition,
 			   MX_inner,
 			   MaxCGIterations,
+			   GridPtrF,
 			   FrbGridF,
 			   Strange_Op_RF,Strange_Op_R,
 			   Strange_LinOp_RF,Strange_LinOp_R);
@@ -269,16 +401,18 @@ int main(int argc, char **argv) {
     LinOpD.push_back(new LinearOperatorD(*Denominators[h]));
     LinOpF.push_back(new LinearOperatorF(*DenominatorsF[h]));
 
-    MPCG.push_back(new MxPCG(DerivativeStoppingCondition,MX_tol,
+    MPCG.push_back(new MxPCG(DerivativeStoppingCondition,
 			     MX_inner,
 			     MaxCGIterations,
+			     GridPtrF,
 			     FrbGridF,
 			     *DenominatorsF[h],*Denominators[h],
 			     *LinOpF[h], *LinOpD[h]) );
 
-    ActionMPCG.push_back(new MxPCG(ActionStoppingCondition,MX_tol,
+    ActionMPCG.push_back(new MxPCG(ActionStoppingCondition,
 				   MX_inner,
 				   MaxCGIterations,
+				   GridPtrF,
 				   FrbGridF,
 				   *DenominatorsF[h],*Denominators[h],
 				   *LinOpF[h], *LinOpD[h]) );