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	First cut non-local coarsening
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								tests/debug/Test_general_coarse.cc
									
									
									
									
									
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					    /*************************************************************************************
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					    Grid physics library, www.github.com/paboyle/Grid 
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					    Source file: ./tests/Test_padded_cell.cc
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					    Copyright (C) 2023
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					Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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					    This program is free software; you can redistribute it and/or modify
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					    it under the terms of the GNU General Public License as published by
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					    the Free Software Foundation; either version 2 of the License, or
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					    (at your option) any later version.
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					    This program is distributed in the hope that it will be useful,
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					    but WITHOUT ANY WARRANTY; without even the implied warranty of
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					    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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					    GNU General Public License for more details.
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					    You should have received a copy of the GNU General Public License along
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					    with this program; if not, write to the Free Software Foundation, Inc.,
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					    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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					    See the full license in the file "LICENSE" in the top level distribution directory
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					    *************************************************************************************/
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					    /*  END LEGAL */
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					#include <Grid/Grid.h>
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					#include <Grid/lattice/PaddedCell.h>
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					#include <Grid/stencil/GeneralLocalStencil.h>
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					#include <Grid/algorithms/GeneralCoarsenedMatrix.h>
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					#include <Grid/algorithms/iterative/PrecGeneralisedConjugateResidual.h>
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					#include <Grid/algorithms/iterative/PrecGeneralisedConjugateResidualNonHermitian.h>
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					#include <Grid/algorithms/iterative/BiCGSTAB.h>
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					using namespace std;
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					using namespace Grid;
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					template<class Field>
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					class HermOpAdaptor : public LinearOperatorBase<Field>
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					{
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					  LinearOperatorBase<Field> & wrapped;
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					public:
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					  HermOpAdaptor(LinearOperatorBase<Field> &wrapme) : wrapped(wrapme)  {};
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					  void OpDiag (const Field &in, Field &out) {    assert(0);  }
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					  void OpDir  (const Field &in, Field &out,int dir,int disp) {    assert(0);  }
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					  void OpDirAll  (const Field &in, std::vector<Field> &out){    assert(0);  };
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					  void Op     (const Field &in, Field &out){
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					    wrapped.HermOp(in,out);
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					  }
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					  void AdjOp     (const Field &in, Field &out){
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					    wrapped.HermOp(in,out);
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					  }
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					  void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){    assert(0);  }
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					  void HermOp(const Field &in, Field &out){
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					    wrapped.HermOp(in,out);
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					  }
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					};
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					template<class Matrix,class Field>
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					class PVdagMLinearOperator : public LinearOperatorBase<Field> {
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					  Matrix &_Mat;
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					  Matrix &_PV;
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					public:
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					  PVdagMLinearOperator(Matrix &Mat,Matrix &PV): _Mat(Mat),_PV(PV){};
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					  void OpDiag (const Field &in, Field &out) {    assert(0);  }
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					  void OpDir  (const Field &in, Field &out,int dir,int disp) {    assert(0);  }
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					  void OpDirAll  (const Field &in, std::vector<Field> &out){    assert(0);  };
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					  void Op     (const Field &in, Field &out){
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					    Field tmp(in.Grid());
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					    _Mat.M(in,tmp);
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					    _PV.Mdag(tmp,out);
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					  }
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					  void AdjOp     (const Field &in, Field &out){
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					    Field tmp(in.Grid());
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					    _PV.M(tmp,out);
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					    _Mat.Mdag(in,tmp);
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					  }
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					  void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){    assert(0);  }
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					  void HermOp(const Field &in, Field &out){
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					    std::cout << "HermOp"<<std::endl;
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					    Field tmp(in.Grid());
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					    _Mat.M(in,tmp);
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					    _PV.Mdag(tmp,out);
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					    _PV.M(out,tmp);
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					    _Mat.Mdag(tmp,out);
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					    std::cout << "HermOp done "<<norm2(out)<<std::endl;
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					  }
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					};
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					template<class Field> class DumbOperator  : public LinearOperatorBase<Field> {
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					public:
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					  LatticeComplex scale;
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					  DumbOperator(GridBase *grid) : scale(grid)
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					  {
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					    scale = 0.0;
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					    LatticeComplex scalesft(grid);
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					    LatticeComplex scaletmp(grid);
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					    for(int d=0;d<4;d++){
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					      Lattice<iScalar<vInteger> > x(grid); LatticeCoordinate(x,d+1);
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					      LatticeCoordinate(scaletmp,d+1);
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					      scalesft = Cshift(scaletmp,d+1,1);
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					      scale = 100.0*scale + where( mod(x    ,2)==(Integer)0, scalesft,scaletmp);
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					    }
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					    std::cout << " scale\n" << scale << std::endl;
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					  }
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					  // Support for coarsening to a multigrid
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					  void OpDiag (const Field &in, Field &out) {};
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					  void OpDir  (const Field &in, Field &out,int dir,int disp){};
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					  void OpDirAll  (const Field &in, std::vector<Field> &out) {};
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					  void Op     (const Field &in, Field &out){
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					    out = scale * in;
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					  }
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					  void AdjOp  (const Field &in, Field &out){
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					    out = scale * in;
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					  }
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					  void HermOp(const Field &in, Field &out){
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					    double n1, n2;
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					    HermOpAndNorm(in,out,n1,n2);
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					  }
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					  void HermOpAndNorm(const Field &in, Field &out,double &n1,double &n2){
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					    ComplexD dot;
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					    out = scale * in;
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					    dot= innerProduct(in,out);
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					    n1=real(dot);
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					    dot = innerProduct(out,out);
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					    n2=real(dot);
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					  }
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					};
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					int main (int argc, char ** argv)
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					{
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					  Grid_init(&argc,&argv);
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					  const int Ls=4;
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					  GridCartesian         * UGrid   = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
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					  GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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					  GridCartesian         * FGrid   = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
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					  GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
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					  // Construct a coarsened grid
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					  Coordinate clatt = GridDefaultLatt();
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					  for(int d=0;d<clatt.size();d++){
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					    clatt[d] = clatt[d]/2;
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					  }
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					  GridCartesian *Coarse4d =  SpaceTimeGrid::makeFourDimGrid(clatt, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());;
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					  GridCartesian *Coarse5d =  SpaceTimeGrid::makeFiveDimGrid(1,Coarse4d);
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					  std::vector<int> seeds4({1,2,3,4});
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					  std::vector<int> seeds5({5,6,7,8});
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					  std::vector<int> cseeds({5,6,7,8});
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					  GridParallelRNG          RNG5(FGrid);   RNG5.SeedFixedIntegers(seeds5);
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					  GridParallelRNG          RNG4(UGrid);   RNG4.SeedFixedIntegers(seeds4);
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					  GridParallelRNG          CRNG(Coarse5d);CRNG.SeedFixedIntegers(cseeds);
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					  LatticeFermion    src(FGrid); random(RNG5,src);
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					  LatticeFermion result(FGrid); result=Zero();
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					  LatticeFermion    ref(FGrid); ref=Zero();
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					  LatticeFermion    tmp(FGrid);
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					  LatticeFermion    err(FGrid);
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					  LatticeGaugeField Umu(UGrid);
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					  //SU<Nc>::HotConfiguration(RNG4,Umu);
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					  SU<Nc>::ColdConfiguration(Umu);
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					  //  auto U = peekLorentz(Umu,0);
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					  //  Umu=Zero(); // Make operator local for now
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					  //  pokeLorentz(Umu,U,0);
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					  RealD mass=0.5;
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					  RealD M5=1.8;
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					  DomainWallFermionD Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
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					  DomainWallFermionD Dpv(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,1.0,M5);
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					  const int nbasis = 20;
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					  const int cb = 0 ;
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					  LatticeFermion prom(FGrid);
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					  std::vector<LatticeFermion> subspace(nbasis,FGrid);
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					  std::cout<<GridLogMessage<<"Calling Aggregation class" <<std::endl;
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					  // Possible tactics -- with zero gauge field, verify block locality of dirac op
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					  // Possible tactics -- with zero gauge field, take inner products
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					  // Squared operator
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					  MdagMLinearOperator<DomainWallFermionD,LatticeFermion> HermDefOp(Ddwf);
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					  DumbOperator<LatticeFermion> Diagonal(FGrid);
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					  typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
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					  Subspace Aggregates(Coarse5d,FGrid,cb);
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					  Aggregates.CreateSubspaceRandom(RNG5);
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					  std::cout<<GridLogMessage << "Called aggregation class"<< std::endl;
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					  typedef GeneralCoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LittleDiracOperator;
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					  typedef LittleDiracOperator::CoarseVector CoarseVector;
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					  NextToNearestStencilGeometry5D geom;
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					  LittleDiracOperator LittleDiracOp(geom,FGrid,Coarse5d);
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					  LittleDiracOp.CoarsenOperator(HermDefOp,Aggregates);
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					  //  LittleDiracOp.CoarsenOperator(Diagonal,Aggregates);
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					  std::cout<<GridLogMessage<<"Coarsened operator "<<std::endl;
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					  CoarseVector c_src (Coarse5d);
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					  CoarseVector c_res (Coarse5d);
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					  CoarseVector c_proj(Coarse5d);
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					  subspace=Aggregates.subspace;
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					  Complex one(1.0);
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					  c_src = one;  // 1 in every element for vector 1.
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					  Coordinate coor(5,0);
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					  std::cout << "c_src"<< c_src<< std::endl;
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					  blockPromote(c_src,err,subspace);
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					  prom=Zero();
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					  for(int b=0;b<nbasis;b++){
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					    prom=prom+subspace[b];
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					  }
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					  err=err-prom; 
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					  std::cout<<GridLogMessage<<"Promoted back from subspace: err "<<norm2(err)<<std::endl;
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					  std::cout<<GridLogMessage<<"c_src "<<norm2(c_src)<<std::endl;
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					  std::cout<<GridLogMessage<<"prom  "<<norm2(prom)<<std::endl;
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					  //  blockPick(Coarse5d,c_src,c_src,coor);
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					  //  blockPromote(c_src,prom,subspace);
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					  //  Diagonal.HermOp(prom,tmp);
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					  HermDefOp.HermOp(prom,tmp);
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					  //  HermDefOp.Op(prom,tmp);
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					  blockProject(c_proj,tmp,subspace);
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					  std::cout<<GridLogMessage<<" Called Big Dirac Op "<<norm2(tmp)<<std::endl;
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					  LittleDiracOp.M(c_src,c_res);
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					  std::cout<<GridLogMessage<<" Called Little Dirac Op c_src "<< norm2(c_src) << "  c_res "<< norm2(c_res) <<std::endl;
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					  std::cout<<GridLogMessage<<"Little dop : "<<norm2(c_res)<<std::endl;
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					  std::cout<<GridLogMessage<<" Little "<< c_res<<std::endl;
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					  std::cout<<GridLogMessage<<"Big dop in subspace : "<<norm2(c_proj)<<std::endl;
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					  std::cout<<GridLogMessage<<" Big "<< c_proj<<std::endl;
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					  c_proj = c_proj - c_res;
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					  std::cout<<GridLogMessage<<" ldop error: "<<norm2(c_proj)<<std::endl;
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					  std::cout<<GridLogMessage<<" error "<< c_proj<<std::endl;
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					  std::cout<<GridLogMessage << "Testing Hermiticity stochastically "<< std::endl;
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					  CoarseVector phi(Coarse5d);
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					  CoarseVector chi(Coarse5d);
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					  CoarseVector Aphi(Coarse5d);
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					  CoarseVector Achi(Coarse5d);
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					  random(CRNG,phi);
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					  random(CRNG,chi);
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					  std::cout<<GridLogMessage<<"Made randoms "<<norm2(phi)<<" " << norm2(chi)<<std::endl;
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					  LittleDiracOp.M(phi,Aphi);
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					  LittleDiracOp.Mdag(chi,Achi);
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"Aphi "<<norm2(Aphi)<<" Adag chi" << norm2(Achi)<<std::endl;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  ComplexD pAc = innerProduct(chi,Aphi);
 | 
				
			||||||
 | 
					  ComplexD cAp = innerProduct(phi,Achi);
 | 
				
			||||||
 | 
					  ComplexD cAc = innerProduct(chi,Achi);
 | 
				
			||||||
 | 
					  ComplexD pAp = innerProduct(phi,Aphi);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<< "pAc "<<pAc<<" cAp "<< cAp<< " diff "<<pAc-adj(cAp)<<std::endl;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<< "pAp "<<pAp<<" cAc "<< cAc<<"Should be real"<< std::endl;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"Testing linearity"<<std::endl;
 | 
				
			||||||
 | 
					  CoarseVector PhiPlusChi(Coarse5d);
 | 
				
			||||||
 | 
					  CoarseVector APhiPlusChi(Coarse5d);
 | 
				
			||||||
 | 
					  CoarseVector linerr(Coarse5d);
 | 
				
			||||||
 | 
					  PhiPlusChi = phi+chi;
 | 
				
			||||||
 | 
					  LittleDiracOp.M(PhiPlusChi,APhiPlusChi);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  linerr= APhiPlusChi-Aphi;
 | 
				
			||||||
 | 
					  linerr= linerr-Achi;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"**Diff "<<norm2(linerr)<<std::endl;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  
 | 
				
			||||||
 | 
					  PVdagMLinearOperator<DomainWallFermionD,LatticeFermionD> PVdagM(Ddwf,Dpv);
 | 
				
			||||||
 | 
					  HermOpAdaptor<LatticeFermionD> HOA(PVdagM);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  // Run power method on HOA??
 | 
				
			||||||
 | 
					  PowerMethod<LatticeFermion>       PM;   PM(HOA,src);
 | 
				
			||||||
 | 
					 
 | 
				
			||||||
 | 
					  // Warning: This routine calls PVdagM.Op, not PVdagM.HermOp
 | 
				
			||||||
 | 
					  Subspace AggregatesPD(Coarse5d,FGrid,cb);
 | 
				
			||||||
 | 
					  AggregatesPD.CreateSubspaceChebyshev(RNG5,
 | 
				
			||||||
 | 
									     HOA,
 | 
				
			||||||
 | 
									     nbasis,
 | 
				
			||||||
 | 
									     5000.0,
 | 
				
			||||||
 | 
									     0.02,
 | 
				
			||||||
 | 
									     100,
 | 
				
			||||||
 | 
									     50,
 | 
				
			||||||
 | 
									     50,
 | 
				
			||||||
 | 
									     0.0);
 | 
				
			||||||
 | 
					  
 | 
				
			||||||
 | 
					  LittleDiracOperator LittleDiracOpPV(geom,FGrid,Coarse5d);
 | 
				
			||||||
 | 
					  LittleDiracOpPV.CoarsenOperator(PVdagM,AggregatesPD);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage << "Done "<< std::endl;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  Grid_finalize();
 | 
				
			||||||
 | 
					  return 0;
 | 
				
			||||||
 | 
					}
 | 
				
			||||||
							
								
								
									
										226
									
								
								tests/debug/Test_general_coarse_pvdagm.cc
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										226
									
								
								tests/debug/Test_general_coarse_pvdagm.cc
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,226 @@
 | 
				
			|||||||
 | 
					    /*************************************************************************************
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					    Grid physics library, www.github.com/paboyle/Grid 
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					    Source file: ./tests/Test_padded_cell.cc
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					    Copyright (C) 2023
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					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 */
 | 
				
			||||||
 | 
					#include <Grid/Grid.h>
 | 
				
			||||||
 | 
					#include <Grid/lattice/PaddedCell.h>
 | 
				
			||||||
 | 
					#include <Grid/stencil/GeneralLocalStencil.h>
 | 
				
			||||||
 | 
					#include <Grid/algorithms/GeneralCoarsenedMatrix.h>
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					#include <Grid/algorithms/iterative/PrecGeneralisedConjugateResidual.h>
 | 
				
			||||||
 | 
					#include <Grid/algorithms/iterative/PrecGeneralisedConjugateResidualNonHermitian.h>
 | 
				
			||||||
 | 
					#include <Grid/algorithms/iterative/BiCGSTAB.h>
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					using namespace std;
 | 
				
			||||||
 | 
					using namespace Grid;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					template<class Field>
 | 
				
			||||||
 | 
					class HermOpAdaptor : public LinearOperatorBase<Field>
 | 
				
			||||||
 | 
					{
 | 
				
			||||||
 | 
					  LinearOperatorBase<Field> & wrapped;
 | 
				
			||||||
 | 
					public:
 | 
				
			||||||
 | 
					  HermOpAdaptor(LinearOperatorBase<Field> &wrapme) : wrapped(wrapme)  {};
 | 
				
			||||||
 | 
					  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){
 | 
				
			||||||
 | 
					    wrapped.HermOp(in,out);
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  void AdjOp     (const Field &in, Field &out){
 | 
				
			||||||
 | 
					    wrapped.HermOp(in,out);
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){    assert(0);  }
 | 
				
			||||||
 | 
					  void HermOp(const Field &in, Field &out){
 | 
				
			||||||
 | 
					    wrapped.HermOp(in,out);
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  
 | 
				
			||||||
 | 
					};
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					template<class Matrix,class Field>
 | 
				
			||||||
 | 
					class PVdagMLinearOperator : public LinearOperatorBase<Field> {
 | 
				
			||||||
 | 
					  Matrix &_Mat;
 | 
				
			||||||
 | 
					  Matrix &_PV;
 | 
				
			||||||
 | 
					public:
 | 
				
			||||||
 | 
					  PVdagMLinearOperator(Matrix &Mat,Matrix &PV): _Mat(Mat),_PV(PV){};
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  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){
 | 
				
			||||||
 | 
					    Field tmp(in.Grid());
 | 
				
			||||||
 | 
					    _Mat.M(in,tmp);
 | 
				
			||||||
 | 
					    _PV.Mdag(tmp,out);
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  void AdjOp     (const Field &in, Field &out){
 | 
				
			||||||
 | 
					    Field tmp(in.Grid());
 | 
				
			||||||
 | 
					    _PV.M(tmp,out);
 | 
				
			||||||
 | 
					    _Mat.Mdag(in,tmp);
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  void HermOpAndNorm(const Field &in, Field &out,RealD &n1,RealD &n2){    assert(0);  }
 | 
				
			||||||
 | 
					  void HermOp(const Field &in, Field &out){
 | 
				
			||||||
 | 
					    std::cout << "HermOp"<<std::endl;
 | 
				
			||||||
 | 
					    Field tmp(in.Grid());
 | 
				
			||||||
 | 
					    _Mat.M(in,tmp);
 | 
				
			||||||
 | 
					    _PV.Mdag(tmp,out);
 | 
				
			||||||
 | 
					    _PV.M(out,tmp);
 | 
				
			||||||
 | 
					    _Mat.Mdag(tmp,out);
 | 
				
			||||||
 | 
					    std::cout << "HermOp done "<<norm2(out)<<std::endl;
 | 
				
			||||||
 | 
					    
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					};
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					template<class Field> class DumbOperator  : public LinearOperatorBase<Field> {
 | 
				
			||||||
 | 
					public:
 | 
				
			||||||
 | 
					  LatticeComplex scale;
 | 
				
			||||||
 | 
					  DumbOperator(GridBase *grid) : scale(grid)
 | 
				
			||||||
 | 
					  {
 | 
				
			||||||
 | 
					    scale = 0.0;
 | 
				
			||||||
 | 
					    LatticeComplex scalesft(grid);
 | 
				
			||||||
 | 
					    LatticeComplex scaletmp(grid);
 | 
				
			||||||
 | 
					    for(int d=0;d<4;d++){
 | 
				
			||||||
 | 
					      Lattice<iScalar<vInteger> > x(grid); LatticeCoordinate(x,d+1);
 | 
				
			||||||
 | 
					      LatticeCoordinate(scaletmp,d+1);
 | 
				
			||||||
 | 
					      scalesft = Cshift(scaletmp,d+1,1);
 | 
				
			||||||
 | 
					      scale = 100.0*scale + where( mod(x    ,2)==(Integer)0, scalesft,scaletmp);
 | 
				
			||||||
 | 
					    }
 | 
				
			||||||
 | 
					    std::cout << " scale\n" << scale << std::endl;
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  // Support for coarsening to a multigrid
 | 
				
			||||||
 | 
					  void OpDiag (const Field &in, Field &out) {};
 | 
				
			||||||
 | 
					  void OpDir  (const Field &in, Field &out,int dir,int disp){};
 | 
				
			||||||
 | 
					  void OpDirAll  (const Field &in, std::vector<Field> &out) {};
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  void Op     (const Field &in, Field &out){
 | 
				
			||||||
 | 
					    out = scale * in;
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  void AdjOp  (const Field &in, Field &out){
 | 
				
			||||||
 | 
					    out = scale * in;
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  void HermOp(const Field &in, Field &out){
 | 
				
			||||||
 | 
					    double n1, n2;
 | 
				
			||||||
 | 
					    HermOpAndNorm(in,out,n1,n2);
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  void HermOpAndNorm(const Field &in, Field &out,double &n1,double &n2){
 | 
				
			||||||
 | 
					    ComplexD dot;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					    out = scale * in;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					    dot= innerProduct(in,out);
 | 
				
			||||||
 | 
					    n1=real(dot);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					    dot = innerProduct(out,out);
 | 
				
			||||||
 | 
					    n2=real(dot);
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					};
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					int main (int argc, char ** argv)
 | 
				
			||||||
 | 
					{
 | 
				
			||||||
 | 
					  Grid_init(&argc,&argv);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  const int Ls=16;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  GridCartesian         * UGrid   = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
 | 
				
			||||||
 | 
					  GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  GridCartesian         * FGrid   = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
 | 
				
			||||||
 | 
					  GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  // Construct a coarsened grid
 | 
				
			||||||
 | 
					  Coordinate clatt = GridDefaultLatt();
 | 
				
			||||||
 | 
					  for(int d=0;d<clatt.size();d++){
 | 
				
			||||||
 | 
					    clatt[d] = clatt[d]/2;
 | 
				
			||||||
 | 
					  }
 | 
				
			||||||
 | 
					  GridCartesian *Coarse4d =  SpaceTimeGrid::makeFourDimGrid(clatt, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());;
 | 
				
			||||||
 | 
					  GridCartesian *Coarse5d =  SpaceTimeGrid::makeFiveDimGrid(1,Coarse4d);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::vector<int> seeds4({1,2,3,4});
 | 
				
			||||||
 | 
					  std::vector<int> seeds5({5,6,7,8});
 | 
				
			||||||
 | 
					  std::vector<int> cseeds({5,6,7,8});
 | 
				
			||||||
 | 
					  GridParallelRNG          RNG5(FGrid);   RNG5.SeedFixedIntegers(seeds5);
 | 
				
			||||||
 | 
					  GridParallelRNG          RNG4(UGrid);   RNG4.SeedFixedIntegers(seeds4);
 | 
				
			||||||
 | 
					  GridParallelRNG          CRNG(Coarse5d);CRNG.SeedFixedIntegers(cseeds);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  LatticeFermion    src(FGrid); random(RNG5,src);
 | 
				
			||||||
 | 
					  LatticeFermion result(FGrid); result=Zero();
 | 
				
			||||||
 | 
					  LatticeFermion    ref(FGrid); ref=Zero();
 | 
				
			||||||
 | 
					  LatticeFermion    tmp(FGrid);
 | 
				
			||||||
 | 
					  LatticeFermion    err(FGrid);
 | 
				
			||||||
 | 
					  LatticeGaugeField Umu(UGrid);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  FieldMetaData header;
 | 
				
			||||||
 | 
					  std::string file("ckpoint_lat.4000");
 | 
				
			||||||
 | 
					  NerscIO::readConfiguration(Umu,header,file);
 | 
				
			||||||
 | 
					  
 | 
				
			||||||
 | 
					  RealD mass=0.5;
 | 
				
			||||||
 | 
					  RealD M5=1.8;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  DomainWallFermionD Ddwf(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
 | 
				
			||||||
 | 
					  DomainWallFermionD Dpv(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,1.0,M5);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  const int nbasis = 20;
 | 
				
			||||||
 | 
					  const int cb = 0 ;
 | 
				
			||||||
 | 
					  LatticeFermion prom(FGrid);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  typedef GeneralCoarsenedMatrix<vSpinColourVector,vTComplex,nbasis> LittleDiracOperator;
 | 
				
			||||||
 | 
					  typedef LittleDiracOperator::CoarseVector CoarseVector;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  NextToNearestStencilGeometry5D geom;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  
 | 
				
			||||||
 | 
					  PVdagMLinearOperator<DomainWallFermionD,LatticeFermionD> PVdagM(Ddwf,Dpv);
 | 
				
			||||||
 | 
					  HermOpAdaptor<LatticeFermionD> HOA(PVdagM);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  // Run power method on HOA??
 | 
				
			||||||
 | 
					  PowerMethod<LatticeFermion>       PM;   PM(HOA,src);
 | 
				
			||||||
 | 
					 
 | 
				
			||||||
 | 
					  // Warning: This routine calls PVdagM.Op, not PVdagM.HermOp
 | 
				
			||||||
 | 
					  typedef Aggregation<vSpinColourVector,vTComplex,nbasis> Subspace;
 | 
				
			||||||
 | 
					  Subspace AggregatesPD(Coarse5d,FGrid,cb);
 | 
				
			||||||
 | 
					  AggregatesPD.CreateSubspaceChebyshev(RNG5,
 | 
				
			||||||
 | 
									     HOA,
 | 
				
			||||||
 | 
									     nbasis,
 | 
				
			||||||
 | 
									     5000.0,
 | 
				
			||||||
 | 
									     0.02,
 | 
				
			||||||
 | 
									     100,
 | 
				
			||||||
 | 
									     50,
 | 
				
			||||||
 | 
									     50,
 | 
				
			||||||
 | 
									     0.0);
 | 
				
			||||||
 | 
					  
 | 
				
			||||||
 | 
					  LittleDiracOperator LittleDiracOpPV(geom,FGrid,Coarse5d);
 | 
				
			||||||
 | 
					  LittleDiracOpPV.CoarsenOperator(PVdagM,AggregatesPD);
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<"*******************************************"<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage<<std::endl;
 | 
				
			||||||
 | 
					  std::cout<<GridLogMessage << "Done "<< std::endl;
 | 
				
			||||||
 | 
					
 | 
				
			||||||
 | 
					  Grid_finalize();
 | 
				
			||||||
 | 
					  return 0;
 | 
				
			||||||
 | 
					}
 | 
				
			||||||
		Reference in New Issue
	
	Block a user