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Staggered

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This commit is contained in:
Azusa Yamaguchi 2016-11-01 14:24:22 +00:00
parent 33d199a0ad
commit 164d3691db
9 changed files with 872 additions and 19 deletions
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4
lib/qcd/action/ActionParams.h
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@ -45,6 +45,10 @@ namespace QCD {
WilsonImplParams() : overlapCommsCompute(false) {};
};
struct StaggeredImplParams {
StaggeredImplParams() {};
};
struct OneFlavourRationalParams {
RealD lo;
RealD hi;

7
lib/qcd/action/Actions.h
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@ -53,6 +53,7 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
#include <Grid/qcd/action/fermion/FermionOperatorImpl.h>
#include <Grid/qcd/action/fermion/FermionOperator.h>
#include <Grid/qcd/action/fermion/WilsonKernels.h> //used by all wilson type fermions
#include <Grid/qcd/action/fermion/StaggeredKernels.h> //used by all wilson type fermions
////////////////////////////////////////////
// Gauge Actions
@ -108,6 +109,10 @@ typedef SymanzikGaugeAction<ConjugateGimplD> ConjugateSymanzikGaugeAction
////////////////////////////////////////////////////////////////////////////////////////////////////
#define FermOpStaggeredTemplateInstantiate(A) \
template class A<StaggeredImplF>; \
template class A<StaggeredImplD>;
#define FermOp4dVecTemplateInstantiate(A) \
template class A<WilsonImplF>; \
template class A<WilsonImplD>; \
@ -147,6 +152,8 @@ typedef SymanzikGaugeAction<ConjugateGimplD> ConjugateSymanzikGaugeAction
//#include <Grid/qcd/action/fermion/CloverFermion.h>
#include <Grid/qcd/action/fermion/ImprovedStaggeredFermion.h>
#include <Grid/qcd/action/fermion/CayleyFermion5D.h> // Cayley types
#include <Grid/qcd/action/fermion/DomainWallFermion.h>
#include <Grid/qcd/action/fermion/DomainWallFermion.h>

97
lib/qcd/action/fermion/FermionOperatorImpl.h
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@ -343,7 +343,7 @@ class GparityWilsonImpl : public ConjugateGaugeImpl<GaugeImplTypes<S, Nrepresent
StencilImpl &St) {
typedef SiteHalfSpinor vobj;
typedef typename SiteHalfSpinor::scalar_object sobj;
typedef typename SiteHalfSpinor::scalar_object sobj;
vobj vtmp;
sobj stmp;
@ -499,6 +499,97 @@ PARALLEL_FOR_LOOP
};
/////////////////////////////////////////////////////////////////////////////
// Single flavour one component spinors with colour index
/////////////////////////////////////////////////////////////////////////////
template <class S, class Representation = FundamentalRepresentation >
class StaggeredImpl : public PeriodicGaugeImpl<GaugeImplTypes<S, Representation::Dimension > > {
public:
typedef RealD _Coeff_t ;
static const int Dimension = Representation::Dimension;
typedef PeriodicGaugeImpl<GaugeImplTypes<S, Dimension > > Gimpl;
//Necessary?
constexpr bool is_fundamental() const{return Dimension == Nc ? 1 : 0;}
const bool LsVectorised=false;
typedef _Coeff_t Coeff_t;
INHERIT_GIMPL_TYPES(Gimpl);
template <typename vtype> using iImplSpinor = iScalar<iScalar<iVector<vtype, Dimension> > >;
template <typename vtype> using iImplHalfSpinor = iVector<iScalar<iVector<vtype, Dimension> >, Ngp>;
template <typename vtype> using iImplDoubledGaugeField = iVector<iScalar<iMatrix<vtype, Dimension> >, Nds>;
typedef iImplSpinor<Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef SimpleCompressor<SiteSpinor> Compressor;
typedef StaggeredImplParams ImplParams;
typedef CartesianStencil<SiteSpinor, SiteSpinor> StencilImpl;
ImplParams Params;
StaggeredImpl(const ImplParams &p = ImplParams()) : Params(p){};
inline void multLink(SiteSpinor &phi,
const SiteDoubledGaugeField &U,
const SiteSpinor &chi,
int mu){
mult(&phi(), &U(mu), &chi());
}
inline void multLinkAdd(SiteSpinor &phi,
const SiteDoubledGaugeField &U,
const SiteSpinor &chi,
int mu){
mac(&phi(), &U(mu), &chi());
}
template <class ref>
inline void loadLinkElement(Simd &reg, ref &memory) {
reg = memory;
}
inline void DoubleStore(GridBase *GaugeGrid,
DoubledGaugeField &Uds,
DoubledGaugeField &UUUds, // for Naik term
const GaugeField &Umu) {
conformable(Uds._grid, GaugeGrid);
conformable(Umu._grid, GaugeGrid);
GaugeLinkField U(GaugeGrid);
for (int mu = 0; mu < Nd; mu++) {
U = PeekIndex<LorentzIndex>(Umu, mu);
PokeIndex<LorentzIndex>(Uds, U, mu);
PokeIndex<LorentzIndex>(UUUds, U, mu);
std::cout << GridLogMessage << " NOT created the treble links for staggered yet" <<std::endl;
std::cout << GridLogMessage << " Must do this and also apply the staggered phases which requires understanding the action conventions" <<std::endl;
U = adj(Cshift(U, mu, -1));
PokeIndex<LorentzIndex>(Uds, U, mu + 4);
PokeIndex<LorentzIndex>(UUUds, U, mu+4);
}
}
inline void InsertForce4D(GaugeField &mat, FermionField &Btilde, FermionField &A,int mu){
GaugeLinkField link(mat._grid);
link = TraceIndex<SpinIndex>(outerProduct(Btilde,A));
PokeIndex<LorentzIndex>(mat,link,mu);
}
inline void InsertForce5D(GaugeField &mat, FermionField &Btilde, FermionField &Atilde,int mu){
assert (0);
// Must never hit
}
};
typedef WilsonImpl<vComplex, FundamentalRepresentation > WilsonImplR; // Real.. whichever prec
typedef WilsonImpl<vComplexF, FundamentalRepresentation > WilsonImplF; // Float
typedef WilsonImpl<vComplexD, FundamentalRepresentation > WilsonImplD; // Double
@ -527,6 +618,10 @@ PARALLEL_FOR_LOOP
typedef GparityWilsonImpl<vComplexF, Nc> GparityWilsonImplF; // Float
typedef GparityWilsonImpl<vComplexD, Nc> GparityWilsonImplD; // Double
typedef StaggeredImpl<vComplex, FundamentalRepresentation > StaggeredImplR; // Real.. whichever prec
typedef StaggeredImpl<vComplexF, FundamentalRepresentation > StaggeredImplF; // Float
typedef StaggeredImpl<vComplexD, FundamentalRepresentation > StaggeredImplD; // Double
}}
#endif

309
lib/qcd/action/fermion/ImprovedStaggeredFermion.cc Normal file
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@ -0,0 +1,309 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/fermion/ImprovedStaggeredFermion.cc
Copyright (C) 2015
Author: Azusa Yamaguchi, Peter Boyle
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.h>
namespace Grid {
namespace QCD {
const std::vector<int>
ImprovedStaggeredFermionStatic::directions({0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3});
const std::vector<int>
ImprovedStaggeredFermionStatic::displacements({1, 1, 1, 1, -1, -1, -1, -1, 3, 3, 3, 3, -3, -3, -3, -3});
/////////////////////////////////
// Constructor and gauge import
/////////////////////////////////
template <class Impl>
ImprovedStaggeredFermion<Impl>::ImprovedStaggeredFermion(GaugeField &_Umu, GridCartesian &Fgrid,
GridRedBlackCartesian &Hgrid, RealD _mass,
const ImplParams &p)
: Kernels(p),
_grid(&Fgrid),
_cbgrid(&Hgrid),
Stencil(&Fgrid, npoint, Even, directions, displacements),
StencilEven(&Hgrid, npoint, Even, directions, displacements), // source is Even
StencilOdd(&Hgrid, npoint, Odd, directions, displacements), // source is Odd
mass(_mass),
Lebesgue(_grid),
LebesgueEvenOdd(_cbgrid),
Umu(&Fgrid),
UmuEven(&Hgrid),
UmuOdd(&Hgrid),
UUUmu(&Fgrid),
UUUmuEven(&Hgrid),
UUUmuOdd(&Hgrid) {
// Allocate the required comms buffer
ImportGauge(_Umu);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::ImportGauge(const GaugeField &_Umu) {
GaugeField HUmu(_Umu._grid);
HUmu = _Umu * (-0.5);
Impl::DoubleStore(GaugeGrid(), Umu, UUUmu, HUmu);
pickCheckerboard(Even, UmuEven, Umu);
pickCheckerboard(Odd, UmuOdd, Umu);
pickCheckerboard(Even, UUUmuEven, UUUmu);
pickCheckerboard(Odd, UUUmuOdd, UUUmu);
}
/////////////////////////////
// Implement the interface
/////////////////////////////
template <class Impl>
RealD ImprovedStaggeredFermion<Impl>::M(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
Dhop(in, out, DaggerNo);
return axpy_norm(out, mass, in, out);
}
template <class Impl>
RealD ImprovedStaggeredFermion<Impl>::Mdag(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
Dhop(in, out, DaggerYes);
return axpy_norm(out, mass, in, out);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::Meooe(const FermionField &in, FermionField &out) {
if (in.checkerboard == Odd) {
DhopEO(in, out, DaggerNo);
} else {
DhopOE(in, out, DaggerNo);
}
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::MeooeDag(const FermionField &in, FermionField &out) {
if (in.checkerboard == Odd) {
DhopEO(in, out, DaggerYes);
} else {
DhopOE(in, out, DaggerYes);
}
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::Mooee(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
typename FermionField::scalar_type scal(mass);
out = scal * in;
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::MooeeDag(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
Mooee(in, out);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::MooeeInv(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
out = (1.0 / (mass)) * in;
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::MooeeInvDag(const FermionField &in,
FermionField &out) {
out.checkerboard = in.checkerboard;
MooeeInv(in, out);
}
///////////////////////////////////
// Internal
///////////////////////////////////
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DerivInternal(StencilImpl &st, DoubledGaugeField &U, DoubledGaugeField &UUU,
GaugeField & mat,
const FermionField &A, const FermionField &B, int dag) {
assert((dag == DaggerNo) || (dag == DaggerYes));
Compressor compressor;
FermionField Btilde(B._grid);
FermionField Atilde(B._grid);
Atilde = A;
st.HaloExchange(B, compressor);
for (int mu = 0; mu < Nd; mu++) {
////////////////////////
// Call the single hop
////////////////////////
PARALLEL_FOR_LOOP
for (int sss = 0; sss < B._grid->oSites(); sss++) {
Kernels::DhopDir(st, U, UUU, st.CommBuf(), sss, sss, B, Btilde, mu,1);
}
// Force in three link terms
//
// Impl::InsertForce4D(mat, Btilde, Atilde, mu);
//
// dU_ac(x)/dt = i p_ab U_bc(x)
//
// => dS_f/dt = dS_f/dU_ac(x) . dU_ac(x)/dt = i p_ab U_bc(x) dS_f/dU_ac(x)
//
// One link: form fragments S_f = A U B
//
// write Btilde = U(x) B(x+mu)
//
// mat+= TraceIndex<SpinIndex>(outerProduct(Btilde,A));
//
// Three link: form fragments S_f = A UUU B
//
// mat+= outer ( A, UUUB) <-- Best take DhopDeriv with one linke or identity matrix
// mat+= outer ( AU, UUB) <-- and then use covariant cshift?
// mat+= outer ( AUU, UB) <-- Returned from call to DhopDir
assert(0);// need to figure out the force interface with a blasted three link term.
}
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DhopDeriv(GaugeField &mat, const FermionField &U, const FermionField &V, int dag) {
conformable(U._grid, _grid);
conformable(U._grid, V._grid);
conformable(U._grid, mat._grid);
mat.checkerboard = U.checkerboard;
DerivInternal(Stencil, Umu, UUUmu, mat, U, V, dag);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DhopDerivOE(GaugeField &mat, const FermionField &U, const FermionField &V, int dag) {
conformable(U._grid, _cbgrid);
conformable(U._grid, V._grid);
conformable(U._grid, mat._grid);
assert(V.checkerboard == Even);
assert(U.checkerboard == Odd);
mat.checkerboard = Odd;
DerivInternal(StencilEven, UmuOdd, UUUmuOdd, mat, U, V, dag);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DhopDerivEO(GaugeField &mat, const FermionField &U, const FermionField &V, int dag) {
conformable(U._grid, _cbgrid);
conformable(U._grid, V._grid);
conformable(U._grid, mat._grid);
assert(V.checkerboard == Odd);
assert(U.checkerboard == Even);
mat.checkerboard = Even;
DerivInternal(StencilOdd, UmuEven, UUUmuEven, mat, U, V, dag);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::Dhop(const FermionField &in, FermionField &out, int dag) {
conformable(in._grid, _grid); // verifies full grid
conformable(in._grid, out._grid);
out.checkerboard = in.checkerboard;
DhopInternal(Stencil, Lebesgue, Umu, UUUmu, in, out, dag);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DhopOE(const FermionField &in, FermionField &out, int dag) {
conformable(in._grid, _cbgrid); // verifies half grid
conformable(in._grid, out._grid); // drops the cb check
assert(in.checkerboard == Even);
out.checkerboard = Odd;
DhopInternal(StencilEven, LebesgueEvenOdd, UmuOdd, UUUmuOdd, in, out, dag);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DhopEO(const FermionField &in, FermionField &out, int dag) {
conformable(in._grid, _cbgrid); // verifies half grid
conformable(in._grid, out._grid); // drops the cb check
assert(in.checkerboard == Odd);
out.checkerboard = Even;
DhopInternal(StencilOdd, LebesgueEvenOdd, UmuEven, UUUmuEven, in, out, dag);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::Mdir(const FermionField &in, FermionField &out, int dir, int disp) {
DhopDir(in, out, dir, disp);
}
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DhopDir(const FermionField &in, FermionField &out, int dir, int disp) {
Compressor compressor;
Stencil.HaloExchange(in, compressor);
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DhopDir(Stencil, Umu, UUUmu, Stencil.CommBuf(), sss, sss, in, out, dir, disp);
}
};
template <class Impl>
void ImprovedStaggeredFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
DoubledGaugeField &U,
DoubledGaugeField &UUU,
const FermionField &in,
FermionField &out, int dag) {
assert((dag == DaggerNo) || (dag == DaggerYes));
Compressor compressor;
st.HaloExchange(in, compressor);
if (dag == DaggerYes) {
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DhopSiteDag(st, lo, U, UUU, st.CommBuf(), sss, sss, in, out);
}
} else {
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DhopSite(st, lo, U, UUU, st.CommBuf(), sss, sss, in, out);
}
}
};
FermOpStaggeredTemplateInstantiate(ImprovedStaggeredFermion);
//AdjointFermOpTemplateInstantiate(ImprovedStaggeredFermion);
//TwoIndexFermOpTemplateInstantiate(ImprovedStaggeredFermion);
}}

152
lib/qcd/action/fermion/ImprovedStaggeredFermion.h Normal file
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@ -0,0 +1,152 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/fermion/ImprovedStaggered.h
Copyright (C) 2015
Author: Azusa Yamaguchi, Peter Boyle
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_QCD_IMPR_STAG_FERMION_H
#define GRID_QCD_IMPR_STAG_FERMION_H
namespace Grid {
namespace QCD {
class ImprovedStaggeredFermionStatic {
public:
static const std::vector<int> directions;
static const std::vector<int> displacements;
static const int npoint = 16;
};
template <class Impl>
class ImprovedStaggeredFermion : public StaggeredKernels<Impl>, public ImprovedStaggeredFermionStatic {
public:
INHERIT_IMPL_TYPES(Impl);
typedef StaggeredKernels<Impl> Kernels;
///////////////////////////////////////////////////////////////
// Implement the abstract base
///////////////////////////////////////////////////////////////
GridBase *GaugeGrid(void) { return _grid; }
GridBase *GaugeRedBlackGrid(void) { return _cbgrid; }
GridBase *FermionGrid(void) { return _grid; }
GridBase *FermionRedBlackGrid(void) { return _cbgrid; }
//////////////////////////////////////////////////////////////////
// override multiply; cut number routines if pass dagger argument
// and also make interface more uniformly consistent
//////////////////////////////////////////////////////////////////
RealD M(const FermionField &in, FermionField &out);
RealD Mdag(const FermionField &in, FermionField &out);
/////////////////////////////////////////////////////////
// half checkerboard operations
/////////////////////////////////////////////////////////
void Meooe(const FermionField &in, FermionField &out);
void MeooeDag(const FermionField &in, FermionField &out);
// allow override for twisted mass and clover
virtual void Mooee(const FermionField &in, FermionField &out);
virtual void MooeeDag(const FermionField &in, FermionField &out);
virtual void MooeeInv(const FermionField &in, FermionField &out);
virtual void MooeeInvDag(const FermionField &in, FermionField &out);
////////////////////////
// Derivative interface
////////////////////////
// Interface calls an internal routine
void DhopDeriv (GaugeField &mat, const FermionField &U, const FermionField &V, int dag);
void DhopDerivOE(GaugeField &mat, const FermionField &U, const FermionField &V, int dag);
void DhopDerivEO(GaugeField &mat, const FermionField &U, const FermionField &V, int dag);
///////////////////////////////////////////////////////////////
// non-hermitian hopping term; half cb or both
///////////////////////////////////////////////////////////////
void Dhop (const FermionField &in, FermionField &out, int dag);
void DhopOE(const FermionField &in, FermionField &out, int dag);
void DhopEO(const FermionField &in, FermionField &out, int dag);
///////////////////////////////////////////////////////////////
// Multigrid assistance; force term uses too
///////////////////////////////////////////////////////////////
void Mdir(const FermionField &in, FermionField &out, int dir, int disp);
void DhopDir(const FermionField &in, FermionField &out, int dir, int disp);
///////////////////////////////////////////////////////////////
// Extra methods added by derived
///////////////////////////////////////////////////////////////
void DerivInternal(StencilImpl &st,
DoubledGaugeField &U,DoubledGaugeField &UUU,
GaugeField &mat,
const FermionField &A, const FermionField &B, int dag);
void DhopInternal(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,DoubledGaugeField &UUU,
const FermionField &in, FermionField &out, int dag);
// Constructor
ImprovedStaggeredFermion(GaugeField &_Umu, GridCartesian &Fgrid,
GridRedBlackCartesian &Hgrid, RealD _mass,
const ImplParams &p = ImplParams());
// DoubleStore impl dependent
void ImportGauge(const GaugeField &_Umu);
///////////////////////////////////////////////////////////////
// Data members require to support the functionality
///////////////////////////////////////////////////////////////
// protected:
public:
// any other parameters of action ???
RealD mass;
GridBase *_grid;
GridBase *_cbgrid;
// Defines the stencils for even and odd
StencilImpl Stencil;
StencilImpl StencilEven;
StencilImpl StencilOdd;
// Copy of the gauge field , with even and odd subsets
DoubledGaugeField Umu;
DoubledGaugeField UmuEven;
DoubledGaugeField UmuOdd;
DoubledGaugeField UUUmu;
DoubledGaugeField UUUmuEven;
DoubledGaugeField UUUmuOdd;
LebesgueOrder Lebesgue;
LebesgueOrder LebesgueEvenOdd;
};
typedef ImprovedStaggeredFermion<StaggeredImplF> ImprovedStaggeredFermionF;
typedef ImprovedStaggeredFermion<StaggeredImplD> ImprovedStaggeredFermionD;
}
}
#endif

223
lib/qcd/action/fermion/StaggeredKernels.cc Normal file
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@ -0,0 +1,223 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/fermion/WilsonKernels.cc
Copyright (C) 2015
Author: Azusa Yamaguchi, Peter Boyle
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.h>
namespace Grid {
namespace QCD {
template <class Impl>
StaggeredKernels<Impl>::StaggeredKernels(const ImplParams &p) : Base(p){};
////////////////////////////////////////////
// Generic implementation; move to different file?
////////////////////////////////////////////
template <class Impl>
void StaggeredKernels<Impl>::DhopSiteDepth(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
SiteSpinor *buf, int sF,
int sU, const FermionField &in, SiteSpinor &out,int threeLink) {
const SiteSpinor *chi_p;
SiteSpinor chi;
SiteSpinor Uchi;
StencilEntry *SE;
int ptype;
int skew = 0;
if (threeLink) skew=8;
///////////////////////////
// Xp
///////////////////////////
SE = st.GetEntry(ptype, Xp+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLink(Uchi, U._odata[sU], *chi_p, Xp);
///////////////////////////
// Yp
///////////////////////////
SE = st.GetEntry(ptype, Yp+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLinkAdd(Uchi, U._odata[sU], *chi_p, Yp);
///////////////////////////
// Zp
///////////////////////////
SE = st.GetEntry(ptype, Zp+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLinkAdd(Uchi, U._odata[sU], *chi_p, Zp);
///////////////////////////
// Tp
///////////////////////////
SE = st.GetEntry(ptype, Tp+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLinkAdd(Uchi, U._odata[sU], *chi_p, Tp);
///////////////////////////
// Xm
///////////////////////////
SE = st.GetEntry(ptype, Xm+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLinkAdd(Uchi, U._odata[sU], *chi_p, Xm);
///////////////////////////
// Ym
///////////////////////////
SE = st.GetEntry(ptype, Ym+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLinkAdd(Uchi, U._odata[sU], *chi_p, Ym);
///////////////////////////
// Zm
///////////////////////////
SE = st.GetEntry(ptype, Zm+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLinkAdd(Uchi, U._odata[sU], *chi_p, Zm);
///////////////////////////
// Tm
///////////////////////////
SE = st.GetEntry(ptype, Tm+skew, sF);
if (SE->_is_local) {
if (SE->_permute) {
chi_p = &chi;
permute(chi, in._odata[SE->_offset], ptype);
} else {
chi_p = &in._odata[SE->_offset];
}
} else {
chi_p = &buf[SE->_offset];
}
Impl::multLinkAdd(Uchi, U._odata[sU], *chi_p, Tm);
vstream(out, Uchi);
};
// Need controls to do interior, exterior, or both
template <class Impl>
void StaggeredKernels<Impl>::DhopSiteDag(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U, DoubledGaugeField &UUU,
SiteSpinor *buf, int sF,
int sU, const FermionField &in, FermionField &out) {
SiteSpinor naik;
SiteSpinor naive;
int oneLink =0;
int threeLink=1;
DhopSiteDepth(st,lo,U,buf,sF,sU,in,naive,oneLink);
DhopSiteDepth(st,lo,UUU,buf,sF,sU,in,naik,threeLink);
out._odata[sF] =naive+naik;
};
template <class Impl>
void StaggeredKernels<Impl>::DhopSite(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U, DoubledGaugeField &UUU,
SiteSpinor *buf, int sF,
int sU, const FermionField &in, FermionField &out) {
SiteSpinor naik;
SiteSpinor naive;
int oneLink =0;
int threeLink=1;
DhopSiteDepth(st,lo,U,buf,sF,sU,in,naive,oneLink);
DhopSiteDepth(st,lo,UUU,buf,sF,sU,in,naik,threeLink);
out._odata[sF] =-naive-naik;
};
template <class Impl>
void StaggeredKernels<Impl>::DhopDir( StencilImpl &st, DoubledGaugeField &U, DoubledGaugeField &UUU, SiteSpinor *buf, int sF,
int sU, const FermionField &in, FermionField &out, int dir, int disp)
{
// Disp should be either +1,-1,+3,-3
// What about "dag" ?
// Because we work out pU . dS/dU
// U
assert(0);
}
FermOpStaggeredTemplateInstantiate(StaggeredKernels);
}}

70
lib/qcd/action/fermion/StaggeredKernels.h Normal file
View File

@ -0,0 +1,70 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/fermion/StaggeredKernels.h
Copyright (C) 2015
Author: Azusa Yamaguchi, Peter Boyle
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_QCD_STAGGERED_KERNELS_H
#define GRID_QCD_STAGGERED_KERNELS_H
namespace Grid {
namespace QCD {
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Helper routines that implement Staggered stencil for a single site.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
class StaggeredKernelsStatic {
public:
};
template<class Impl> class StaggeredKernels : public FermionOperator<Impl> , public StaggeredKernelsStatic {
public:
INHERIT_IMPL_TYPES(Impl);
typedef FermionOperator<Impl> Base;
public:
void DhopDir(StencilImpl &st, DoubledGaugeField &U, DoubledGaugeField &UUU, SiteSpinor * buf,
int sF, int sU, const FermionField &in, FermionField &out, int dir,int disp);
void DhopSiteDepth(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U, SiteSpinor * buf,
int sF, int sU, const FermionField &in, SiteSpinor &out,int threeLink);
void DhopSite(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U, DoubledGaugeField &UUU, SiteSpinor * buf,
int sF, int sU, const FermionField &in, FermionField &out);
void DhopSiteDag(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U, DoubledGaugeField &UUU, SiteSpinor * buf,
int sF, int sU, const FermionField &in, FermionField &out);
public:
StaggeredKernels(const ImplParams &p = ImplParams());
};
}}
#endif

19
lib/qcd/action/fermion/WilsonFermion.cc
View File

@ -34,10 +34,9 @@ directory
namespace Grid {
namespace QCD {
const std::vector<int> WilsonFermionStatic::directions({0, 1, 2, 3, 0, 1, 2,
3});
const std::vector<int> WilsonFermionStatic::displacements({1, 1, 1, 1, -1, -1,
-1, -1});
const std::vector<int> WilsonFermionStatic::directions({0, 1, 2, 3, 0, 1, 2, 3});
const std::vector<int> WilsonFermionStatic::displacements({1, 1, 1, 1, -1, -1, -1, -1});
int WilsonFermionStatic::HandOptDslash;
/////////////////////////////////
@ -166,8 +165,7 @@ void WilsonFermion<Impl>::DerivInternal(StencilImpl &st, DoubledGaugeField &U,
////////////////////////
PARALLEL_FOR_LOOP
for (int sss = 0; sss < B._grid->oSites(); sss++) {
Kernels::DiracOptDhopDir(st, U, st.CommBuf(), sss, sss, B, Btilde, mu,
gamma);
Kernels::DiracOptDhopDir(st, U, st.CommBuf(), sss, sss, B, Btilde, mu, gamma);
}
//////////////////////////////////////////////////
@ -277,8 +275,7 @@ void WilsonFermion<Impl>::DhopDirDisp(const FermionField &in, FermionField &out,
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DiracOptDhopDir(Stencil, Umu, Stencil.CommBuf(), sss, sss, in, out,
dirdisp, gamma);
Kernels::DiracOptDhopDir(Stencil, Umu, Stencil.CommBuf(), sss, sss, in, out, dirdisp, gamma);
}
};
@ -295,14 +292,12 @@ void WilsonFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
if (dag == DaggerYes) {
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DiracOptDhopSiteDag(st, lo, U, st.CommBuf(), sss, sss, 1, 1, in,
out);
Kernels::DiracOptDhopSiteDag(st, lo, U, st.CommBuf(), sss, sss, 1, 1, in, out);
}
} else {
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DiracOptDhopSite(st, lo, U, st.CommBuf(), sss, sss, 1, 1, in,
out);
Kernels::DiracOptDhopSite(st, lo, U, st.CommBuf(), sss, sss, 1, 1, in, out);
}
}
};

10
lib/qcd/action/pseudofermion/TwoFlavour.h
View File

@ -63,8 +63,7 @@ class TwoFlavourPseudoFermionAction : public Action<typename Impl::GaugeField> {
Phi(Op.FermionGrid()){};
//////////////////////////////////////////////////////////////////////////////////////
// Push the gauge field in to the dops. Assume any BC's and smearing already
// applied
// Push the gauge field in to the dops. Assume any BC's and smearing already applied
//////////////////////////////////////////////////////////////////////////////////////
virtual void refresh(const GaugeField &U, GridParallelRNG &pRNG) {
// P(phi) = e^{- phi^dag (MdagM)^-1 phi}
@ -107,8 +106,7 @@ class TwoFlavourPseudoFermionAction : public Action<typename Impl::GaugeField> {
MdagMOp.Op(X, Y);
RealD action = norm2(Y);
std::cout << GridLogMessage << "Pseudofermion action " << action
<< std::endl;
std::cout << GridLogMessage << "Pseudofermion action " << action << std::endl;
return action;
};
@ -119,6 +117,7 @@ class TwoFlavourPseudoFermionAction : public Action<typename Impl::GaugeField> {
//
// = - Ydag dM X - Xdag dMdag Y
//
//
//////////////////////////////////////////////////////
virtual void deriv(const GaugeField &U, GaugeField &dSdU) {
FermOp.ImportGauge(U);
@ -133,8 +132,7 @@ class TwoFlavourPseudoFermionAction : public Action<typename Impl::GaugeField> {
DerivativeSolver(MdagMOp, Phi, X); // X = (MdagM)^-1 phi
MdagMOp.Op(X, Y); // Y = M X = (Mdag)^-1 phi
// Our conventions really make this UdSdU; We do not differentiate wrt Udag
// here.
// Our conventions really make this UdSdU; We do not differentiate wrt Udag here.
// So must take dSdU - adj(dSdU) and left multiply by mom to get dS/dt.
FermOp.MDeriv(tmp, Y, X, DaggerNo);