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Guido Cossu
2016-07-06 11:41:27 +01:00
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lib/qcd/action/fermion/FermionOperatorImpl.h
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/*************************************************************************************
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/fermion/FermionOperatorImpl.h
Source file: ./lib/qcd/action/fermion/FermionOperatorImpl.h
Copyright (C) 2015
Copyright (C) 2015
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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 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.
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.
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_FERMION_OPERATOR_IMPL_H
#define GRID_QCD_FERMION_OPERATOR_IMPL_H
See the full license in the file "LICENSE" in the top level distribution
directory
*************************************************************************************/
/* END LEGAL */
#ifndef GRID_QCD_FERMION_OPERATOR_IMPL_H
#define GRID_QCD_FERMION_OPERATOR_IMPL_H
namespace Grid {
namespace QCD {
namespace QCD {
//////////////////////////////////////////////
// Template parameter class constructs to package
// externally control Fermion implementations
// in orthogonal directions
//
// Ultimately need Impl to always define types where XXX is opaque
//
// typedef typename XXX Simd;
// typedef typename XXX GaugeLinkField;
// typedef typename XXX GaugeField;
// typedef typename XXX GaugeActField;
// typedef typename XXX FermionField;
// typedef typename XXX DoubledGaugeField;
// typedef typename XXX SiteSpinor;
// typedef typename XXX SiteHalfSpinor;
// typedef typename XXX Compressor;
//
// and Methods:
// void ImportGauge(GridBase *GaugeGrid,DoubledGaugeField &Uds,const
// GaugeField &Umu)
// void DoubleStore(GridBase *GaugeGrid,DoubledGaugeField &Uds,const
// GaugeField &Umu)
// void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const
// SiteHalfSpinor &chi,int mu,StencilEntry *SE,StencilImpl &St)
// void InsertForce4D(GaugeField &mat,const FermionField &Btilde,const
// FermionField &A,int mu)
// void InsertForce5D(GaugeField &mat,const FermionField &Btilde,const
// FermionField &A,int mu)
//
//
// To acquire the typedefs from "Base" (either a base class or template param)
// use:
//
// INHERIT_GIMPL_TYPES(Base)
// INHERIT_FIMPL_TYPES(Base)
// INHERIT_IMPL_TYPES(Base)
//
// The Fermion operators will do the following:
//
// struct MyOpParams {
// RealD mass;
// };
//
//
// template<class Impl>
// class MyOp : pubic<Impl> {
// public:
//
// INHERIT_ALL_IMPL_TYPES(Impl);
//
// MyOp(MyOpParams Myparm, ImplParams &ImplParam) : Impl(ImplParam)
// {
//
// };
//
// }
//////////////////////////////////////////////
//////////////////////////////////////////////
// Template parameter class constructs to package
// externally control Fermion implementations
// in orthogonal directions
//
// Ultimately need Impl to always define types where XXX is opaque
//
// typedef typename XXX Simd;
// typedef typename XXX GaugeLinkField;
// typedef typename XXX GaugeField;
// typedef typename XXX GaugeActField;
// typedef typename XXX FermionField;
// typedef typename XXX DoubledGaugeField;
// typedef typename XXX SiteSpinor;
// typedef typename XXX SiteHalfSpinor;
// typedef typename XXX Compressor;
//
// and Methods:
// void ImportGauge(GridBase *GaugeGrid,DoubledGaugeField &Uds,const GaugeField &Umu)
// void DoubleStore(GridBase *GaugeGrid,DoubledGaugeField &Uds,const GaugeField &Umu)
// void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,StencilImpl &St)
// void InsertForce4D(GaugeField &mat,const FermionField &Btilde,const FermionField &A,int mu)
// void InsertForce5D(GaugeField &mat,const FermionField &Btilde,const FermionField &A,int mu)
//
//
// To acquire the typedefs from "Base" (either a base class or template param) use:
//
// INHERIT_GIMPL_TYPES(Base)
// INHERIT_FIMPL_TYPES(Base)
// INHERIT_IMPL_TYPES(Base)
//
// The Fermion operators will do the following:
//
// struct MyOpParams {
// RealD mass;
// };
//
//
// template<class Impl>
// class MyOp : pubic<Impl> {
// public:
//
// INHERIT_ALL_IMPL_TYPES(Impl);
//
// MyOp(MyOpParams Myparm, ImplParams &ImplParam) : Impl(ImplParam)
// {
//
// };
//
// }
//////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
// Implementation dependent fermion types
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
// Implementation dependent fermion types
////////////////////////////////////////////////////////////////////////
#define INHERIT_FIMPL_TYPES(Impl)\
typedef typename Impl::FermionField FermionField; \
typedef typename Impl::DoubledGaugeField DoubledGaugeField; \
typedef typename Impl::SiteSpinor SiteSpinor; \
typedef typename Impl::SiteHalfSpinor SiteHalfSpinor; \
typedef typename Impl::Compressor Compressor; \
typedef typename Impl::StencilImpl StencilImpl; \
typedef typename Impl::ImplParams ImplParams;
#define INHERIT_FIMPL_TYPES(Impl) \
typedef typename Impl::FermionField FermionField; \
typedef typename Impl::DoubledGaugeField DoubledGaugeField; \
typedef typename Impl::SiteSpinor SiteSpinor; \
typedef typename Impl::SiteHalfSpinor SiteHalfSpinor; \
typedef typename Impl::Compressor Compressor; \
typedef typename Impl::StencilImpl StencilImpl; \
typedef typename Impl::ImplParams ImplParams;
#define INHERIT_IMPL_TYPES(Base) \
INHERIT_GIMPL_TYPES(Base)\
INHERIT_FIMPL_TYPES(Base)
///////
// Single flavour four spinors with colour index
///////
template<class S,int Nrepresentation=Nc>
class WilsonImpl : public PeriodicGaugeImpl< GaugeImplTypes< S,Nrepresentation> > {
public:
typedef PeriodicGaugeImpl< GaugeImplTypes< S,Nrepresentation> > Gimpl;
INHERIT_GIMPL_TYPES(Gimpl);
template<typename vtype> using iImplSpinor = iScalar<iVector<iVector<vtype, Nrepresentation>, Ns> >;
template<typename vtype> using iImplHalfSpinor = iScalar<iVector<iVector<vtype, Nrepresentation>, Nhs> >;
template<typename vtype> using iImplDoubledGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds >;
typedef iImplSpinor <Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
typedef WilsonImplParams ImplParams;
typedef WilsonStencil<SiteSpinor,SiteHalfSpinor> StencilImpl;
ImplParams Params;
WilsonImpl(const ImplParams &p= ImplParams()) : Params(p) {};
bool overlapCommsCompute(void) { return Params.overlapCommsCompute; };
inline void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,StencilImpl &St){
mult(&phi(),&U(mu),&chi());
}
template<class ref>
inline void loadLinkElement(Simd & reg,ref &memory){
reg = memory;
}
inline void DoubleStore(GridBase *GaugeGrid,DoubledGaugeField &Uds,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);
U = adj(Cshift(U,mu,-1));
PokeIndex<LorentzIndex>(Uds,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){
int Ls=Btilde._grid->_fdimensions[0];
GaugeLinkField tmp(mat._grid);
tmp = zero;
PARALLEL_FOR_LOOP
for(int sss=0;sss<tmp._grid->oSites();sss++){
int sU=sss;
for(int s=0;s<Ls;s++){
int sF = s+Ls*sU;
tmp[sU] = tmp[sU]+ traceIndex<SpinIndex>(outerProduct(Btilde[sF],Atilde[sF])); // ordering here
}
}
PokeIndex<LorentzIndex>(mat,tmp,mu);
}
};
///////
// Single flavour four spinors with colour index, 5d redblack
///////
template<class S,int Nrepresentation=Nc>
class DomainWallRedBlack5dImpl : public PeriodicGaugeImpl< GaugeImplTypes< S,Nrepresentation> > {
public:
typedef PeriodicGaugeImpl< GaugeImplTypes< S,Nrepresentation> > Gimpl;
INHERIT_GIMPL_TYPES(Gimpl);
template<typename vtype> using iImplSpinor = iScalar<iVector<iVector<vtype, Nrepresentation>, Ns> >;
template<typename vtype> using iImplHalfSpinor = iScalar<iVector<iVector<vtype, Nrepresentation>, Nhs> >;
template<typename vtype> using iImplDoubledGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds >;
template<typename vtype> using iImplGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nd >;
template<typename vtype> using iImplGaugeLink = iScalar<iScalar<iMatrix<vtype, Nrepresentation> > >;
typedef iImplSpinor <Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef Lattice<SiteSpinor> FermionField;
// Make the doubled gauge field a *scalar*
typedef iImplDoubledGaugeField<typename Simd::scalar_type> SiteDoubledGaugeField; // This is a scalar
typedef iImplGaugeField<typename Simd::scalar_type> SiteScalarGaugeField; // scalar
typedef iImplGaugeLink <typename Simd::scalar_type> SiteScalarGaugeLink; // scalar
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
typedef WilsonImplParams ImplParams;
typedef WilsonStencil<SiteSpinor,SiteHalfSpinor> StencilImpl;
ImplParams Params;
DomainWallRedBlack5dImpl(const ImplParams &p= ImplParams()) : Params(p) {};
bool overlapCommsCompute(void) { return false; };
template<class ref>
inline void loadLinkElement(Simd & reg,ref &memory){
vsplat(reg,memory);
}
inline void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,StencilImpl &St)
{
SiteGaugeLink UU;
for(int i=0;i<Nrepresentation;i++){
for(int j=0;j<Nrepresentation;j++){
vsplat(UU()()(i,j),U(mu)()(i,j));
}
}
mult(&phi(),&UU(),&chi());
}
inline void DoubleStore(GridBase *GaugeGrid,DoubledGaugeField &Uds,const GaugeField &Umu)
{
SiteScalarGaugeField ScalarUmu;
SiteDoubledGaugeField ScalarUds;
GaugeLinkField U (Umu._grid);
GaugeField Uadj(Umu._grid);
for(int mu=0;mu<Nd;mu++){
U = PeekIndex<LorentzIndex>(Umu,mu);
U = adj(Cshift(U,mu,-1));
PokeIndex<LorentzIndex>(Uadj,U,mu);
}
for(int lidx=0;lidx<GaugeGrid->lSites();lidx++){
std::vector<int> lcoor;
GaugeGrid->LocalIndexToLocalCoor(lidx,lcoor);
peekLocalSite(ScalarUmu,Umu,lcoor);
for(int mu=0;mu<4;mu++) ScalarUds(mu) = ScalarUmu(mu);
peekLocalSite(ScalarUmu,Uadj,lcoor);
for(int mu=0;mu<4;mu++) ScalarUds(mu+4) = ScalarUmu(mu);
pokeLocalSite(ScalarUds,Uds,lcoor);
}
}
inline void InsertForce4D(GaugeField &mat, FermionField &Btilde, FermionField &A,int mu){
assert(0);
}
inline void InsertForce5D(GaugeField &mat, FermionField &Btilde, FermionField &Atilde,int mu){
assert(0);
}
};
////////////////////////////////////////////////////////////////////////////////////////
// Flavour doubled spinors; is Gparity the only? what about C*?
////////////////////////////////////////////////////////////////////////////////////////
template<class S,int Nrepresentation>
class GparityWilsonImpl : public ConjugateGaugeImpl< GaugeImplTypes<S,Nrepresentation> >{
public:
typedef ConjugateGaugeImpl< GaugeImplTypes<S,Nrepresentation> > Gimpl;
INHERIT_GIMPL_TYPES(Gimpl);
template<typename vtype> using iImplSpinor = iVector<iVector<iVector<vtype, Nrepresentation>, Ns>, Ngp >;
template<typename vtype> using iImplHalfSpinor = iVector<iVector<iVector<vtype, Nrepresentation>, Nhs>, Ngp >;
template<typename vtype> using iImplDoubledGaugeField = iVector<iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds >, Ngp >;
typedef iImplSpinor <Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
typedef WilsonStencil<SiteSpinor,SiteHalfSpinor> StencilImpl;
typedef GparityWilsonImplParams ImplParams;
ImplParams Params;
GparityWilsonImpl(const ImplParams &p= ImplParams()) : Params(p) {};
bool overlapCommsCompute(void) { return Params.overlapCommsCompute; };
// provide the multiply by link that is differentiated between Gparity (with flavour index) and non-Gparity
inline void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,StencilImpl &St){
typedef SiteHalfSpinor vobj;
typedef typename SiteHalfSpinor::scalar_object sobj;
vobj vtmp;
sobj stmp;
GridBase *grid = St._grid;
const int Nsimd = grid->Nsimd();
int direction = St._directions[mu];
int distance = St._distances[mu];
int ptype = St._permute_type[mu];
int sl = St._grid->_simd_layout[direction];
// Fixme X.Y.Z.T hardcode in stencil
int mmu = mu % Nd;
// assert our assumptions
assert((distance==1)||(distance==-1)); // nearest neighbour stencil hard code
assert((sl==1)||(sl==2));
std::vector<int> icoor;
if ( SE->_around_the_world && Params.twists[mmu] ) {
if ( sl == 2 ) {
std::vector<sobj> vals(Nsimd);
extract(chi,vals);
for(int s=0;s<Nsimd;s++){
grid->iCoorFromIindex(icoor,s);
assert((icoor[direction]==0)||(icoor[direction]==1));
int permute_lane;
if ( distance == 1) {
permute_lane = icoor[direction]?1:0;
} else {
permute_lane = icoor[direction]?0:1;
}
if ( permute_lane ) {
stmp(0) = vals[s](1);
stmp(1) = vals[s](0);
vals[s] = stmp;
}
}
merge(vtmp,vals);
} else {
vtmp(0) = chi(1);
vtmp(1) = chi(0);
}
mult(&phi(0),&U(0)(mu),&vtmp(0));
mult(&phi(1),&U(1)(mu),&vtmp(1));
} else {
mult(&phi(0),&U(0)(mu),&chi(0));
mult(&phi(1),&U(1)(mu),&chi(1));
}
}
inline void DoubleStore(GridBase *GaugeGrid,DoubledGaugeField &Uds,const GaugeField &Umu)
{
conformable(Uds._grid,GaugeGrid);
conformable(Umu._grid,GaugeGrid);
GaugeLinkField Utmp (GaugeGrid);
GaugeLinkField U (GaugeGrid);
GaugeLinkField Uconj(GaugeGrid);
Lattice<iScalar<vInteger> > coor(GaugeGrid);
for(int mu=0;mu<Nd;mu++){
LatticeCoordinate(coor,mu);
U = PeekIndex<LorentzIndex>(Umu,mu);
Uconj = conjugate(U);
// This phase could come from a simple bc 1,1,-1,1 ..
int neglink = GaugeGrid->GlobalDimensions()[mu]-1;
if ( Params.twists[mu] ) {
Uconj = where(coor==neglink,-Uconj,Uconj);
}
PARALLEL_FOR_LOOP
for(auto ss=U.begin();ss<U.end();ss++){
Uds[ss](0)(mu) = U[ss]();
Uds[ss](1)(mu) = Uconj[ss]();
}
U = adj(Cshift(U ,mu,-1)); // correct except for spanning the boundary
Uconj = adj(Cshift(Uconj,mu,-1));
Utmp = U;
if ( Params.twists[mu] ) {
Utmp = where(coor==0,Uconj,Utmp);
}
PARALLEL_FOR_LOOP
for(auto ss=U.begin();ss<U.end();ss++){
Uds[ss](0)(mu+4) = Utmp[ss]();
}
Utmp = Uconj;
if ( Params.twists[mu] ) {
Utmp = where(coor==0,U,Utmp);
}
PARALLEL_FOR_LOOP
for(auto ss=U.begin();ss<U.end();ss++){
Uds[ss](1)(mu+4) = Utmp[ss]();
}
}
}
inline void InsertForce4D(GaugeField &mat, FermionField &Btilde, FermionField &A,int mu){
// DhopDir provides U or Uconj depending on coor/flavour.
GaugeLinkField link(mat._grid);
// use lorentz for flavour as hack.
auto tmp = TraceIndex<SpinIndex>(outerProduct(Btilde,A));
PARALLEL_FOR_LOOP
for(auto ss=tmp.begin();ss<tmp.end();ss++){
link[ss]() = tmp[ss](0,0) - conjugate(tmp[ss](1,1)) ;
}
PokeIndex<LorentzIndex>(mat,link,mu);
return;
}
inline void InsertForce5D(GaugeField &mat, FermionField &Btilde, FermionField &Atilde,int mu){
int Ls=Btilde._grid->_fdimensions[0];
GaugeLinkField tmp(mat._grid);
tmp = zero;
PARALLEL_FOR_LOOP
for(int ss=0;ss<tmp._grid->oSites();ss++){
for(int s=0;s<Ls;s++){
int sF = s+Ls*ss;
auto ttmp = traceIndex<SpinIndex>(outerProduct(Btilde[sF],Atilde[sF]));
tmp[ss]() = tmp[ss]()+ ttmp(0,0) + conjugate(ttmp(1,1));
}
}
PokeIndex<LorentzIndex>(mat,tmp,mu);
return;
}
};
typedef WilsonImpl<vComplex ,Nc> WilsonImplR; // Real.. whichever prec
typedef WilsonImpl<vComplexF,Nc> WilsonImplF; // Float
typedef WilsonImpl<vComplexD,Nc> WilsonImplD; // Double
typedef DomainWallRedBlack5dImpl<vComplex ,Nc> DomainWallRedBlack5dImplR; // Real.. whichever prec
typedef DomainWallRedBlack5dImpl<vComplexF,Nc> DomainWallRedBlack5dImplF; // Float
typedef DomainWallRedBlack5dImpl<vComplexD,Nc> DomainWallRedBlack5dImplD; // Double
typedef GparityWilsonImpl<vComplex ,Nc> GparityWilsonImplR; // Real.. whichever prec
typedef GparityWilsonImpl<vComplexF,Nc> GparityWilsonImplF; // Float
typedef GparityWilsonImpl<vComplexD,Nc> GparityWilsonImplD; // Double
INHERIT_GIMPL_TYPES(Base) \
INHERIT_FIMPL_TYPES(Base)
///////
// Single flavour four spinors with colour index
///////
template <class S, int Nrepresentation = Nc>
class WilsonImpl
: public PeriodicGaugeImpl<GaugeImplTypes<S, Nrepresentation> > {
public:
typedef PeriodicGaugeImpl<GaugeImplTypes<S, Nrepresentation> > Gimpl;
INHERIT_GIMPL_TYPES(Gimpl);
template <typename vtype>
using iImplSpinor = iScalar<iVector<iVector<vtype, Nrepresentation>, Ns> >;
template <typename vtype>
using iImplHalfSpinor =
iScalar<iVector<iVector<vtype, Nrepresentation>, Nhs> >;
template <typename vtype>
using iImplDoubledGaugeField =
iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds>;
typedef iImplSpinor<Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor, SiteSpinor> Compressor;
typedef WilsonImplParams ImplParams;
typedef WilsonStencil<SiteSpinor, SiteHalfSpinor> StencilImpl;
ImplParams Params;
WilsonImpl(const ImplParams &p = ImplParams()) : Params(p){};
bool overlapCommsCompute(void) { return Params.overlapCommsCompute; };
inline void multLink(SiteHalfSpinor &phi, const SiteDoubledGaugeField &U,
const SiteHalfSpinor &chi, int mu, StencilEntry *SE,
StencilImpl &St) {
mult(&phi(), &U(mu), &chi());
}
template <class ref>
inline void loadLinkElement(Simd &reg, ref &memory) {
reg = memory;
}
inline void DoubleStore(GridBase *GaugeGrid, DoubledGaugeField &Uds,
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);
U = adj(Cshift(U, mu, -1));
PokeIndex<LorentzIndex>(Uds, 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) {
int Ls = Btilde._grid->_fdimensions[0];
GaugeLinkField tmp(mat._grid);
tmp = zero;
PARALLEL_FOR_LOOP
for (int sss = 0; sss < tmp._grid->oSites(); sss++) {
int sU = sss;
for (int s = 0; s < Ls; s++) {
int sF = s + Ls * sU;
tmp[sU] = tmp[sU] + traceIndex<SpinIndex>(outerProduct(
Btilde[sF], Atilde[sF])); // ordering here
}
}
PokeIndex<LorentzIndex>(mat, tmp, mu);
}
};
///////
// Single flavour four spinors with colour index, 5d redblack
///////
template <class S, int Nrepresentation = Nc>
class DomainWallRedBlack5dImpl
: public PeriodicGaugeImpl<GaugeImplTypes<S, Nrepresentation> > {
public:
typedef PeriodicGaugeImpl<GaugeImplTypes<S, Nrepresentation> > Gimpl;
INHERIT_GIMPL_TYPES(Gimpl);
template <typename vtype>
using iImplSpinor = iScalar<iVector<iVector<vtype, Nrepresentation>, Ns> >;
template <typename vtype>
using iImplHalfSpinor =
iScalar<iVector<iVector<vtype, Nrepresentation>, Nhs> >;
template <typename vtype>
using iImplDoubledGaugeField =
iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds>;
template <typename vtype>
using iImplGaugeField =
iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nd>;
template <typename vtype>
using iImplGaugeLink = iScalar<iScalar<iMatrix<vtype, Nrepresentation> > >;
typedef iImplSpinor<Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef Lattice<SiteSpinor> FermionField;
// Make the doubled gauge field a *scalar*
typedef iImplDoubledGaugeField<typename Simd::scalar_type>
SiteDoubledGaugeField; // This is a scalar
typedef iImplGaugeField<typename Simd::scalar_type>
SiteScalarGaugeField; // scalar
typedef iImplGaugeLink<typename Simd::scalar_type>
SiteScalarGaugeLink; // scalar
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor, SiteSpinor> Compressor;
typedef WilsonImplParams ImplParams;
typedef WilsonStencil<SiteSpinor, SiteHalfSpinor> StencilImpl;
ImplParams Params;
DomainWallRedBlack5dImpl(const ImplParams &p = ImplParams()) : Params(p){};
bool overlapCommsCompute(void) { return false; };
template <class ref>
inline void loadLinkElement(Simd &reg, ref &memory) {
vsplat(reg, memory);
}
inline void multLink(SiteHalfSpinor &phi, const SiteDoubledGaugeField &U,
const SiteHalfSpinor &chi, int mu, StencilEntry *SE,
StencilImpl &St) {
SiteGaugeLink UU;
for (int i = 0; i < Nrepresentation; i++) {
for (int j = 0; j < Nrepresentation; j++) {
vsplat(UU()()(i, j), U(mu)()(i, j));
}
}
mult(&phi(), &UU(), &chi());
}
inline void DoubleStore(GridBase *GaugeGrid, DoubledGaugeField &Uds,
const GaugeField &Umu) {
SiteScalarGaugeField ScalarUmu;
SiteDoubledGaugeField ScalarUds;
GaugeLinkField U(Umu._grid);
GaugeField Uadj(Umu._grid);
for (int mu = 0; mu < Nd; mu++) {
U = PeekIndex<LorentzIndex>(Umu, mu);
U = adj(Cshift(U, mu, -1));
PokeIndex<LorentzIndex>(Uadj, U, mu);
}
for (int lidx = 0; lidx < GaugeGrid->lSites(); lidx++) {
std::vector<int> lcoor;
GaugeGrid->LocalIndexToLocalCoor(lidx, lcoor);
peekLocalSite(ScalarUmu, Umu, lcoor);
for (int mu = 0; mu < 4; mu++) ScalarUds(mu) = ScalarUmu(mu);
peekLocalSite(ScalarUmu, Uadj, lcoor);
for (int mu = 0; mu < 4; mu++) ScalarUds(mu + 4) = ScalarUmu(mu);
pokeLocalSite(ScalarUds, Uds, lcoor);
}
}
inline void InsertForce4D(GaugeField &mat, FermionField &Btilde,
FermionField &A, int mu) {
assert(0);
}
inline void InsertForce5D(GaugeField &mat, FermionField &Btilde,
FermionField &Atilde, int mu) {
assert(0);
}
};
////////////////////////////////////////////////////////////////////////////////////////
// Flavour doubled spinors; is Gparity the only? what about C*?
////////////////////////////////////////////////////////////////////////////////////////
template <class S, int Nrepresentation>
class GparityWilsonImpl
: public ConjugateGaugeImpl<GaugeImplTypes<S, Nrepresentation> > {
public:
typedef ConjugateGaugeImpl<GaugeImplTypes<S, Nrepresentation> > Gimpl;
INHERIT_GIMPL_TYPES(Gimpl);
template <typename vtype>
using iImplSpinor =
iVector<iVector<iVector<vtype, Nrepresentation>, Ns>, Ngp>;
template <typename vtype>
using iImplHalfSpinor =
iVector<iVector<iVector<vtype, Nrepresentation>, Nhs>, Ngp>;
template <typename vtype>
using iImplDoubledGaugeField =
iVector<iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds>, Ngp>;
typedef iImplSpinor<Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor, SiteSpinor> Compressor;
typedef WilsonStencil<SiteSpinor, SiteHalfSpinor> StencilImpl;
typedef GparityWilsonImplParams ImplParams;
ImplParams Params;
GparityWilsonImpl(const ImplParams &p = ImplParams()) : Params(p){};
bool overlapCommsCompute(void) { return Params.overlapCommsCompute; };
// provide the multiply by link that is differentiated between Gparity (with
// flavour index) and non-Gparity
inline void multLink(SiteHalfSpinor &phi, const SiteDoubledGaugeField &U,
const SiteHalfSpinor &chi, int mu, StencilEntry *SE,
StencilImpl &St) {
typedef SiteHalfSpinor vobj;
typedef typename SiteHalfSpinor::scalar_object sobj;
vobj vtmp;
sobj stmp;
GridBase *grid = St._grid;
const int Nsimd = grid->Nsimd();
int direction = St._directions[mu];
int distance = St._distances[mu];
int ptype = St._permute_type[mu];
int sl = St._grid->_simd_layout[direction];
// Fixme X.Y.Z.T hardcode in stencil
int mmu = mu % Nd;
// assert our assumptions
assert((distance == 1) ||
(distance == -1)); // nearest neighbour stencil hard code
assert((sl == 1) || (sl == 2));
std::vector<int> icoor;
if (SE->_around_the_world && Params.twists[mmu]) {
if (sl == 2) {
std::vector<sobj> vals(Nsimd);
extract(chi, vals);
for (int s = 0; s < Nsimd; s++) {
grid->iCoorFromIindex(icoor, s);
assert((icoor[direction] == 0) || (icoor[direction] == 1));
int permute_lane;
if (distance == 1) {
permute_lane = icoor[direction] ? 1 : 0;
} else {
permute_lane = icoor[direction] ? 0 : 1;
}
if (permute_lane) {
stmp(0) = vals[s](1);
stmp(1) = vals[s](0);
vals[s] = stmp;
}
}
merge(vtmp, vals);
} else {
vtmp(0) = chi(1);
vtmp(1) = chi(0);
}
mult(&phi(0), &U(0)(mu), &vtmp(0));
mult(&phi(1), &U(1)(mu), &vtmp(1));
} else {
mult(&phi(0), &U(0)(mu), &chi(0));
mult(&phi(1), &U(1)(mu), &chi(1));
}
}
inline void DoubleStore(GridBase *GaugeGrid, DoubledGaugeField &Uds,
const GaugeField &Umu) {
conformable(Uds._grid, GaugeGrid);
conformable(Umu._grid, GaugeGrid);
GaugeLinkField Utmp(GaugeGrid);
GaugeLinkField U(GaugeGrid);
GaugeLinkField Uconj(GaugeGrid);
Lattice<iScalar<vInteger> > coor(GaugeGrid);
for (int mu = 0; mu < Nd; mu++) {
LatticeCoordinate(coor, mu);
U = PeekIndex<LorentzIndex>(Umu, mu);
Uconj = conjugate(U);
// This phase could come from a simple bc 1,1,-1,1 ..
int neglink = GaugeGrid->GlobalDimensions()[mu] - 1;
if (Params.twists[mu]) {
Uconj = where(coor == neglink, -Uconj, Uconj);
}
PARALLEL_FOR_LOOP
for (auto ss = U.begin(); ss < U.end(); ss++) {
Uds[ss](0)(mu) = U[ss]();
Uds[ss](1)(mu) = Uconj[ss]();
}
U = adj(Cshift(U, mu, -1)); // correct except for spanning the boundary
Uconj = adj(Cshift(Uconj, mu, -1));
Utmp = U;
if (Params.twists[mu]) {
Utmp = where(coor == 0, Uconj, Utmp);
}
PARALLEL_FOR_LOOP
for (auto ss = U.begin(); ss < U.end(); ss++) {
Uds[ss](0)(mu + 4) = Utmp[ss]();
}
Utmp = Uconj;
if (Params.twists[mu]) {
Utmp = where(coor == 0, U, Utmp);
}
PARALLEL_FOR_LOOP
for (auto ss = U.begin(); ss < U.end(); ss++) {
Uds[ss](1)(mu + 4) = Utmp[ss]();
}
}
}
inline void InsertForce4D(GaugeField &mat, FermionField &Btilde,
FermionField &A, int mu) {
// DhopDir provides U or Uconj depending on coor/flavour.
GaugeLinkField link(mat._grid);
// use lorentz for flavour as hack.
auto tmp = TraceIndex<SpinIndex>(outerProduct(Btilde, A));
PARALLEL_FOR_LOOP
for (auto ss = tmp.begin(); ss < tmp.end(); ss++) {
link[ss]() = tmp[ss](0, 0) - conjugate(tmp[ss](1, 1));
}
PokeIndex<LorentzIndex>(mat, link, mu);
return;
}
inline void InsertForce5D(GaugeField &mat, FermionField &Btilde,
FermionField &Atilde, int mu) {
int Ls = Btilde._grid->_fdimensions[0];
GaugeLinkField tmp(mat._grid);
tmp = zero;
PARALLEL_FOR_LOOP
for (int ss = 0; ss < tmp._grid->oSites(); ss++) {
for (int s = 0; s < Ls; s++) {
int sF = s + Ls * ss;
auto ttmp = traceIndex<SpinIndex>(outerProduct(Btilde[sF], Atilde[sF]));
tmp[ss]() = tmp[ss]() + ttmp(0, 0) + conjugate(ttmp(1, 1));
}
}
PokeIndex<LorentzIndex>(mat, tmp, mu);
return;
}
};
typedef WilsonImpl<vComplex, Nc> WilsonImplR; // Real.. whichever prec
typedef WilsonImpl<vComplexF, Nc> WilsonImplF; // Float
typedef WilsonImpl<vComplexD, Nc> WilsonImplD; // Double
typedef DomainWallRedBlack5dImpl<vComplex, Nc>
DomainWallRedBlack5dImplR; // Real.. whichever prec
typedef DomainWallRedBlack5dImpl<vComplexF, Nc>
DomainWallRedBlack5dImplF; // Float
typedef DomainWallRedBlack5dImpl<vComplexD, Nc>
DomainWallRedBlack5dImplD; // Double
typedef GparityWilsonImpl<vComplex, Nc>
GparityWilsonImplR; // Real.. whichever prec
typedef GparityWilsonImpl<vComplexF, Nc> GparityWilsonImplF; // Float
typedef GparityWilsonImpl<vComplexD, Nc> GparityWilsonImplD; // Double
}
}
#endif

580
lib/qcd/action/fermion/WilsonFermion.cc
View File

@@ -1,319 +1,313 @@
/*************************************************************************************
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/fermion/WilsonFermion.cc
Source file: ./lib/qcd/action/fermion/WilsonFermion.cc
Copyright (C) 2015
Copyright (C) 2015
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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 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.
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.
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 */
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> 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;
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;
/////////////////////////////////
// Constructor and gauge import
/////////////////////////////////
/////////////////////////////////
// Constructor and gauge import
/////////////////////////////////
template<class Impl>
WilsonFermion<Impl>::WilsonFermion(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)
{
// Allocate the required comms buffer
ImportGauge(_Umu);
template <class Impl>
WilsonFermion<Impl>::WilsonFermion(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) {
// Allocate the required comms buffer
ImportGauge(_Umu);
}
template <class Impl>
void WilsonFermion<Impl>::ImportGauge(const GaugeField &_Umu) {
GaugeField HUmu(_Umu._grid);
HUmu = _Umu * (-0.5);
Impl::DoubleStore(GaugeGrid(), Umu, HUmu);
pickCheckerboard(Even, UmuEven, Umu);
pickCheckerboard(Odd, UmuOdd, Umu);
}
/////////////////////////////
// Implement the interface
/////////////////////////////
template <class Impl>
RealD WilsonFermion<Impl>::M(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
Dhop(in, out, DaggerNo);
return axpy_norm(out, 4 + mass, in, out);
}
template <class Impl>
RealD WilsonFermion<Impl>::Mdag(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
Dhop(in, out, DaggerYes);
return axpy_norm(out, 4 + mass, in, out);
}
template <class Impl>
void WilsonFermion<Impl>::Meooe(const FermionField &in, FermionField &out) {
if (in.checkerboard == Odd) {
DhopEO(in, out, DaggerNo);
} else {
DhopOE(in, out, DaggerNo);
}
template<class Impl>
void WilsonFermion<Impl>::ImportGauge(const GaugeField &_Umu)
{
GaugeField HUmu(_Umu._grid);
HUmu = _Umu*(-0.5);
Impl::DoubleStore(GaugeGrid(),Umu,HUmu);
pickCheckerboard(Even,UmuEven,Umu);
pickCheckerboard(Odd ,UmuOdd,Umu);
}
/////////////////////////////
// Implement the interface
/////////////////////////////
template<class Impl>
RealD WilsonFermion<Impl>::M(const FermionField &in, FermionField &out)
{
out.checkerboard=in.checkerboard;
Dhop(in,out,DaggerNo);
return axpy_norm(out,4+mass,in,out);
}
template <class Impl>
void WilsonFermion<Impl>::MeooeDag(const FermionField &in, FermionField &out) {
if (in.checkerboard == Odd) {
DhopEO(in, out, DaggerYes);
} else {
DhopOE(in, out, DaggerYes);
}
}
template<class Impl>
RealD WilsonFermion<Impl>::Mdag(const FermionField &in, FermionField &out)
{
out.checkerboard=in.checkerboard;
Dhop(in,out,DaggerYes);
return axpy_norm(out,4+mass,in,out);
}
template <class Impl>
void WilsonFermion<Impl>::Mooee(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
typename FermionField::scalar_type scal(4.0 + mass);
out = scal * in;
}
template<class Impl>
void WilsonFermion<Impl>::Meooe(const FermionField &in, FermionField &out)
{
if ( in.checkerboard == Odd ) {
DhopEO(in,out,DaggerNo);
} else {
DhopOE(in,out,DaggerNo);
}
}
template<class Impl>
void WilsonFermion<Impl>::MeooeDag(const FermionField &in, FermionField &out)
{
if ( in.checkerboard == Odd ) {
DhopEO(in,out,DaggerYes);
} else {
DhopOE(in,out,DaggerYes);
template <class Impl>
void WilsonFermion<Impl>::MooeeDag(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
Mooee(in, out);
}
template <class Impl>
void WilsonFermion<Impl>::MooeeInv(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
out = (1.0 / (4.0 + mass)) * in;
}
template <class Impl>
void WilsonFermion<Impl>::MooeeInvDag(const FermionField &in,
FermionField &out) {
out.checkerboard = in.checkerboard;
MooeeInv(in, out);
}
///////////////////////////////////
// Internal
///////////////////////////////////
template <class Impl>
void WilsonFermion<Impl>::DerivInternal(StencilImpl &st, DoubledGaugeField &U,
GaugeField &mat, const FermionField &A,
const FermionField &B, int dag) {
assert((dag == DaggerNo) || (dag == DaggerYes));
Compressor compressor(dag);
FermionField Btilde(B._grid);
FermionField Atilde(B._grid);
Atilde = A;
st.HaloExchange(B, compressor);
for (int mu = 0; mu < Nd; mu++) {
////////////////////////////////////////////////////////////////////////
// Flip gamma (1+g)<->(1-g) if dag
////////////////////////////////////////////////////////////////////////
int gamma = mu;
if (!dag) gamma += Nd;
////////////////////////
// Call the single hop
////////////////////////
PARALLEL_FOR_LOOP
for (int sss = 0; sss < B._grid->oSites(); sss++) {
Kernels::DiracOptDhopDir(st, U, st.comm_buf, sss, sss, B, Btilde, mu,
gamma);
}
//////////////////////////////////////////////////
// spin trace outer product
//////////////////////////////////////////////////
Impl::InsertForce4D(mat, Btilde, Atilde, mu);
}
}
template <class Impl>
void WilsonFermion<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, mat, U, V, dag);
}
template <class Impl>
void WilsonFermion<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, mat, U, V, dag);
}
template <class Impl>
void WilsonFermion<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, mat, U, V, dag);
}
template <class Impl>
void WilsonFermion<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, in, out, dag);
}
template <class Impl>
void WilsonFermion<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, in, out, dag);
}
template <class Impl>
void WilsonFermion<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, in, out, dag);
}
template <class Impl>
void WilsonFermion<Impl>::Mdir(const FermionField &in, FermionField &out,
int dir, int disp) {
DhopDir(in, out, dir, disp);
}
template <class Impl>
void WilsonFermion<Impl>::DhopDir(const FermionField &in, FermionField &out,
int dir, int disp) {
int skip = (disp == 1) ? 0 : 1;
int dirdisp = dir + skip * 4;
int gamma = dir + (1 - skip) * 4;
DhopDirDisp(in, out, dirdisp, gamma, DaggerNo);
};
template <class Impl>
void WilsonFermion<Impl>::DhopDirDisp(const FermionField &in, FermionField &out,
int dirdisp, int gamma, int dag) {
Compressor compressor(dag);
Stencil.HaloExchange(in, compressor);
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DiracOptDhopDir(Stencil, Umu, Stencil.comm_buf, sss, sss, in, out,
dirdisp, gamma);
}
};
template <class Impl>
void WilsonFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
DoubledGaugeField &U,
const FermionField &in,
FermionField &out, int dag) {
assert((dag == DaggerNo) || (dag == DaggerYes));
Compressor compressor(dag);
st.HaloExchange(in, compressor);
if (dag == DaggerYes) {
PARALLEL_FOR_LOOP
for (int sss = 0; sss < in._grid->oSites(); sss++) {
Kernels::DiracOptDhopSiteDag(st, lo, U, st.comm_buf, 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.comm_buf, sss, sss, 1, 1, in,
out);
}
}
};
template<class Impl>
void WilsonFermion<Impl>::Mooee(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
typename FermionField::scalar_type scal(4.0+mass);
out = scal*in;
}
template<class Impl>
void WilsonFermion<Impl>::MooeeDag(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
Mooee(in,out);
}
template<class Impl>
void WilsonFermion<Impl>::MooeeInv(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
out = (1.0/(4.0+mass))*in;
}
template<class Impl>
void WilsonFermion<Impl>::MooeeInvDag(const FermionField &in, FermionField &out) {
out.checkerboard = in.checkerboard;
MooeeInv(in,out);
}
///////////////////////////////////
// Internal
///////////////////////////////////
template<class Impl>
void WilsonFermion<Impl>::DerivInternal(StencilImpl & st,
DoubledGaugeField & U,
GaugeField &mat,
const FermionField &A,
const FermionField &B,int dag) {
assert((dag==DaggerNo) ||(dag==DaggerYes));
Compressor compressor(dag);
FermionField Btilde(B._grid);
FermionField Atilde(B._grid);
Atilde = A;
st.HaloExchange(B,compressor);
for(int mu=0;mu<Nd;mu++){
////////////////////////////////////////////////////////////////////////
// Flip gamma (1+g)<->(1-g) if dag
////////////////////////////////////////////////////////////////////////
int gamma = mu;
if ( !dag ) gamma+= Nd;
////////////////////////
// Call the single hop
////////////////////////
PARALLEL_FOR_LOOP
for(int sss=0;sss<B._grid->oSites();sss++){
Kernels::DiracOptDhopDir(st,U,st.comm_buf,sss,sss,B,Btilde,mu,gamma);
}
//////////////////////////////////////////////////
// spin trace outer product
//////////////////////////////////////////////////
Impl::InsertForce4D(mat,Btilde,Atilde,mu);
}
}
template<class Impl>
void WilsonFermion<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,mat,U,V,dag);
}
template<class Impl>
void WilsonFermion<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,mat,U,V,dag);
}
template<class Impl>
void WilsonFermion<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,mat,U,V,dag);
}
template<class Impl>
void WilsonFermion<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,in,out,dag);
}
template<class Impl>
void WilsonFermion<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,in,out,dag);
}
template<class Impl>
void WilsonFermion<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,in,out,dag);
}
template<class Impl>
void WilsonFermion<Impl>::Mdir (const FermionField &in, FermionField &out,int dir,int disp) {
DhopDir(in,out,dir,disp);
}
template<class Impl>
void WilsonFermion<Impl>::DhopDir(const FermionField &in, FermionField &out,int dir,int disp){
int skip = (disp==1) ? 0 : 1;
int dirdisp = dir+skip*4;
int gamma = dir+(1-skip)*4;
DhopDirDisp(in,out,dirdisp,gamma,DaggerNo);
};
template<class Impl>
void WilsonFermion<Impl>::DhopDirDisp(const FermionField &in, FermionField &out,int dirdisp,int gamma,int dag) {
Compressor compressor(dag);
Stencil.HaloExchange(in,compressor);
PARALLEL_FOR_LOOP
for(int sss=0;sss<in._grid->oSites();sss++){
Kernels::DiracOptDhopDir(Stencil,Umu,Stencil.comm_buf,sss,sss,in,out,dirdisp,gamma);
}
};
template<class Impl>
void WilsonFermion<Impl>::DhopInternal(StencilImpl & st,LebesgueOrder& lo,DoubledGaugeField & U,
const FermionField &in, FermionField &out,int dag)
{
assert((dag==DaggerNo) ||(dag==DaggerYes));
Compressor compressor(dag);
st.HaloExchange(in,compressor);
if ( dag == DaggerYes ) {
PARALLEL_FOR_LOOP
for(int sss=0;sss<in._grid->oSites();sss++){
Kernels::DiracOptDhopSiteDag(st,lo,U,st.comm_buf,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.comm_buf,sss,sss,1,1,in,out);
}
}
};
FermOpTemplateInstantiate(WilsonFermion);
GparityFermOpTemplateInstantiate(WilsonFermion);
}}
FermOpTemplateInstantiate(WilsonFermion);
GparityFermOpTemplateInstantiate(WilsonFermion);
}
}

242
lib/qcd/action/fermion/WilsonFermion.h
View File

@@ -1,161 +1,153 @@
/*************************************************************************************
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/fermion/WilsonFermion.h
Source file: ./lib/qcd/action/fermion/WilsonFermion.h
Copyright (C) 2015
Copyright (C) 2015
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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 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.
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.
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_WILSON_FERMION_H
#define GRID_QCD_WILSON_FERMION_H
See the full license in the file "LICENSE" in the top level distribution
directory
*************************************************************************************/
/* END LEGAL */
#ifndef GRID_QCD_WILSON_FERMION_H
#define GRID_QCD_WILSON_FERMION_H
namespace Grid {
namespace QCD {
namespace QCD {
class WilsonFermionStatic {
public:
static int HandOptDslash; // these are a temporary hack
static int MortonOrder;
static const std::vector<int> directions ;
static const std::vector<int> displacements;
static const int npoint=8;
};
class WilsonFermionStatic {
public:
static int HandOptDslash; // these are a temporary hack
static int MortonOrder;
static const std::vector<int> directions;
static const std::vector<int> displacements;
static const int npoint = 8;
};
template<class Impl>
class WilsonFermion : public WilsonKernels<Impl>, public WilsonFermionStatic
{
public:
INHERIT_IMPL_TYPES(Impl);
typedef WilsonKernels<Impl> Kernels;
template <class Impl>
class WilsonFermion : public WilsonKernels<Impl>, public WilsonFermionStatic {
public:
INHERIT_IMPL_TYPES(Impl);
typedef WilsonKernels<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;}
///////////////////////////////////////////////////////////////
// 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);
//////////////////////////////////////////////////////////////////
// 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
// could remain virtual so we can derive Clover from Wilson base
/////////////////////////////////////////////////////////
void Meooe(const FermionField &in, FermionField &out) ;
void MeooeDag(const FermionField &in, FermionField &out) ;
/////////////////////////////////////////////////////////
// half checkerboard operations
// could remain virtual so we can derive Clover from Wilson base
/////////////////////////////////////////////////////////
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) ;
// 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);
////////////////////////
// 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);
///////////////////////////////////////////////////////////////
// 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);
void DhopDirDisp(const FermionField &in, FermionField &out, int dirdisp,
int gamma, 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);
void DhopDirDisp(const FermionField &in, FermionField &out,int dirdisp,int gamma,int dag) ;
///////////////////////////////////////////////////////////////
// Extra methods added by derived
///////////////////////////////////////////////////////////////
void DerivInternal(StencilImpl &st, DoubledGaugeField &U, GaugeField &mat,
const FermionField &A, const FermionField &B, int dag);
///////////////////////////////////////////////////////////////
// Extra methods added by derived
///////////////////////////////////////////////////////////////
void DerivInternal(StencilImpl & st,
DoubledGaugeField & U,
GaugeField &mat,
const FermionField &A,
const FermionField &B,
int dag);
void DhopInternal(StencilImpl &st, LebesgueOrder &lo, DoubledGaugeField &U,
const FermionField &in, FermionField &out, int dag);
void DhopInternal(StencilImpl & st,LebesgueOrder & lo,DoubledGaugeField & U,
const FermionField &in, FermionField &out,int dag) ;
// Constructor
WilsonFermion(GaugeField &_Umu, GridCartesian &Fgrid,
GridRedBlackCartesian &Hgrid, RealD _mass,
const ImplParams &p = ImplParams());
// Constructor
WilsonFermion(GaugeField &_Umu,
GridCartesian &Fgrid,
GridRedBlackCartesian &Hgrid,
RealD _mass,
const ImplParams &p= ImplParams()
) ;
// DoubleStore impl dependent
void ImportGauge(const GaugeField &_Umu);
// DoubleStore impl dependent
void ImportGauge(const GaugeField &_Umu);
///////////////////////////////////////////////////////////////
// Data members require to support the functionality
///////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////
// Data members require to support the functionality
///////////////////////////////////////////////////////////////
// protected:
public:
RealD mass;
// protected:
public:
GridBase *_grid;
GridBase *_cbgrid;
RealD mass;
// Defines the stencils for even and odd
StencilImpl Stencil;
StencilImpl StencilEven;
StencilImpl StencilOdd;
GridBase * _grid;
GridBase * _cbgrid;
// Copy of the gauge field , with even and odd subsets
DoubledGaugeField Umu;
DoubledGaugeField UmuEven;
DoubledGaugeField UmuOdd;
//Defines the stencils for even and odd
StencilImpl Stencil;
StencilImpl StencilEven;
StencilImpl StencilOdd;
LebesgueOrder Lebesgue;
LebesgueOrder LebesgueEvenOdd;
};
// Copy of the gauge field , with even and odd subsets
DoubledGaugeField Umu;
DoubledGaugeField UmuEven;
DoubledGaugeField UmuOdd;
LebesgueOrder Lebesgue;
LebesgueOrder LebesgueEvenOdd;
};
typedef WilsonFermion<WilsonImplF> WilsonFermionF;
typedef WilsonFermion<WilsonImplD> WilsonFermionD;
}
typedef WilsonFermion<WilsonImplF> WilsonFermionF;
typedef WilsonFermion<WilsonImplD> WilsonFermionD;
}
}
#endif

274
lib/qcd/action/pseudofermion/TwoFlavourEvenOdd.h
View File

@@ -1,185 +1,179 @@
/*************************************************************************************
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/qcd/action/pseudofermion/TwoFlavourEvenOdd.h
Source file: ./lib/qcd/action/pseudofermion/TwoFlavourEvenOdd.h
Copyright (C) 2015
Copyright (C) 2015
Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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 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.
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.
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 */
See the full license in the file "LICENSE" in the top level distribution
directory
*************************************************************************************/
/* END LEGAL */
#ifndef QCD_PSEUDOFERMION_TWO_FLAVOUR_EVEN_ODD_H
#define QCD_PSEUDOFERMION_TWO_FLAVOUR_EVEN_ODD_H
namespace Grid{
namespace QCD{
namespace Grid {
namespace QCD {
////////////////////////////////////////////////////////////////////////
// Two flavour pseudofermion action for any EO prec dop
////////////////////////////////////////////////////////////////////////
template <class Impl>
class TwoFlavourEvenOddPseudoFermionAction
: public Action<typename Impl::GaugeField> {
public:
INHERIT_IMPL_TYPES(Impl);
private:
FermionOperator<Impl> &FermOp; // the basic operator
////////////////////////////////////////////////////////////////////////
// Two flavour pseudofermion action for any EO prec dop
////////////////////////////////////////////////////////////////////////
template<class Impl>
class TwoFlavourEvenOddPseudoFermionAction : public Action<typename Impl::GaugeField> {
OperatorFunction<FermionField> &DerivativeSolver;
OperatorFunction<FermionField> &ActionSolver;
public:
FermionField PhiOdd; // the pseudo fermion field for this trajectory
FermionField PhiEven; // the pseudo fermion field for this trajectory
INHERIT_IMPL_TYPES(Impl);
private:
FermionOperator<Impl> & FermOp;// the basic operator
OperatorFunction<FermionField> &DerivativeSolver;
OperatorFunction<FermionField> &ActionSolver;
FermionField PhiOdd; // the pseudo fermion field for this trajectory
FermionField PhiEven; // the pseudo fermion field for this trajectory
public:
/////////////////////////////////////////////////
// Pass in required objects.
/////////////////////////////////////////////////
TwoFlavourEvenOddPseudoFermionAction(FermionOperator<Impl> &Op,
OperatorFunction<FermionField> & DS,
OperatorFunction<FermionField> & AS
) :
FermOp(Op),
DerivativeSolver(DS),
ActionSolver(AS),
public:
/////////////////////////////////////////////////
// Pass in required objects.
/////////////////////////////////////////////////
TwoFlavourEvenOddPseudoFermionAction(FermionOperator<Impl> &Op,
OperatorFunction<FermionField> &DS,
OperatorFunction<FermionField> &AS)
: FermOp(Op),
DerivativeSolver(DS),
ActionSolver(AS),
PhiEven(Op.FermionRedBlackGrid()),
PhiOdd(Op.FermionRedBlackGrid())
{};
//////////////////////////////////////////////////////////////////////////////////////
// Push the gauge field in to the dops. Assume any BC's and smearing already applied
//////////////////////////////////////////////////////////////////////////////////////
virtual void refresh(const GaugeField &U, GridParallelRNG& pRNG) {
PhiOdd(Op.FermionRedBlackGrid()){};
// P(phi) = e^{- phi^dag (MpcdagMpc)^-1 phi}
// Phi = McpDag eta
// P(eta) = e^{- eta^dag eta}
//
// e^{x^2/2 sig^2} => sig^2 = 0.5.
//////////////////////////////////////////////////////////////////////////////////////
// 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 (MpcdagMpc)^-1 phi}
// Phi = McpDag eta
// P(eta) = e^{- eta^dag eta}
//
// e^{x^2/2 sig^2} => sig^2 = 0.5.
RealD scale = std::sqrt(0.5);
RealD scale = std::sqrt(0.5);
FermionField eta (FermOp.FermionGrid());
FermionField etaOdd (FermOp.FermionRedBlackGrid());
FermionField etaEven(FermOp.FermionRedBlackGrid());
FermionField eta(FermOp.FermionGrid());
FermionField etaOdd(FermOp.FermionRedBlackGrid());
FermionField etaEven(FermOp.FermionRedBlackGrid());
gaussian(pRNG,eta);
pickCheckerboard(Even,etaEven,eta);
pickCheckerboard(Odd,etaOdd,eta);
gaussian(pRNG, eta);
pickCheckerboard(Even, etaEven, eta);
pickCheckerboard(Odd, etaOdd, eta);
FermOp.ImportGauge(U);
SchurDifferentiableOperator<Impl> PCop(FermOp);
FermOp.ImportGauge(U);
SchurDifferentiableOperator<Impl> PCop(FermOp);
PCop.MpcDag(etaOdd,PhiOdd);
PCop.MpcDag(etaOdd, PhiOdd);
FermOp.MooeeDag(etaEven,PhiEven);
FermOp.MooeeDag(etaEven, PhiEven);
PhiOdd =PhiOdd*scale;
PhiEven=PhiEven*scale;
};
PhiOdd = PhiOdd * scale;
PhiEven = PhiEven * scale;
};
//////////////////////////////////////////////////////
// S = phi^dag (Mdag M)^-1 phi (odd)
// + phi^dag (Mdag M)^-1 phi (even)
//////////////////////////////////////////////////////
virtual RealD S(const GaugeField &U) {
//////////////////////////////////////////////////////
// S = phi^dag (Mdag M)^-1 phi (odd)
// + phi^dag (Mdag M)^-1 phi (even)
//////////////////////////////////////////////////////
virtual RealD S(const GaugeField &U) {
FermOp.ImportGauge(U);
FermOp.ImportGauge(U);
FermionField X(FermOp.FermionRedBlackGrid());
FermionField Y(FermOp.FermionRedBlackGrid());
FermionField X(FermOp.FermionRedBlackGrid());
FermionField Y(FermOp.FermionRedBlackGrid());
SchurDifferentiableOperator<Impl> PCop(FermOp);
SchurDifferentiableOperator<Impl> PCop(FermOp);
X=zero;
ActionSolver(PCop,PhiOdd,X);
PCop.Op(X,Y);
RealD action = norm2(Y);
X = zero;
ActionSolver(PCop, PhiOdd, X);
PCop.Op(X, Y);
RealD action = norm2(Y);
// The EE factorised block; normally can replace with zero if det is constant (gauge field indept)
// Only really clover term that creates this.
FermOp.MooeeInvDag(PhiEven,Y);
action = action + norm2(Y);
// The EE factorised block; normally can replace with zero if det is
// constant (gauge field indept)
// Only really clover term that creates this.
FermOp.MooeeInvDag(PhiEven, Y);
action = action + norm2(Y);
std::cout << GridLogMessage << "Pseudofermion EO action "<<action<<std::endl;
return action;
};
std::cout << GridLogMessage << "Pseudofermion EO action " << action
<< std::endl;
return action;
};
//////////////////////////////////////////////////////
//
// dS/du = - phi^dag (Mdag M)^-1 [ Mdag dM + dMdag M ] (Mdag M)^-1 phi
// = - phi^dag M^-1 dM (MdagM)^-1 phi - phi^dag (MdagM)^-1 dMdag dM (Mdag)^-1 phi
//
// = - Ydag dM X - Xdag dMdag Y
//
//////////////////////////////////////////////////////
virtual void deriv(const GaugeField &U,GaugeField & dSdU) {
//////////////////////////////////////////////////////
//
// dS/du = - phi^dag (Mdag M)^-1 [ Mdag dM + dMdag M ] (Mdag M)^-1 phi
// = - phi^dag M^-1 dM (MdagM)^-1 phi - phi^dag (MdagM)^-1 dMdag dM
// (Mdag)^-1 phi
//
// = - Ydag dM X - Xdag dMdag Y
//
//////////////////////////////////////////////////////
virtual void deriv(const GaugeField &U, GaugeField &dSdU) {
FermOp.ImportGauge(U);
FermOp.ImportGauge(U);
FermionField X(FermOp.FermionRedBlackGrid());
FermionField Y(FermOp.FermionRedBlackGrid());
GaugeField tmp(FermOp.GaugeGrid());
FermionField X(FermOp.FermionRedBlackGrid());
FermionField Y(FermOp.FermionRedBlackGrid());
GaugeField tmp(FermOp.GaugeGrid());
SchurDifferentiableOperator<Impl> Mpc(FermOp);
SchurDifferentiableOperator<Impl> Mpc(FermOp);
// 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.
// 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.
X = zero;
DerivativeSolver(Mpc, PhiOdd, X);
Mpc.Mpc(X, Y);
Mpc.MpcDeriv(tmp, Y, X);
dSdU = tmp;
Mpc.MpcDagDeriv(tmp, X, Y);
dSdU = dSdU + tmp;
X=zero;
DerivativeSolver(Mpc,PhiOdd,X);
Mpc.Mpc(X,Y);
Mpc.MpcDeriv(tmp , Y, X ); dSdU=tmp;
Mpc.MpcDagDeriv(tmp , X, Y); dSdU=dSdU+tmp;
// Treat the EE case. (MdagM)^-1 = Minv Minvdag
// Deriv defaults to zero.
// FermOp.MooeeInvDag(PhiOdd,Y);
// FermOp.MooeeInv(Y,X);
// FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
// FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
// Treat the EE case. (MdagM)^-1 = Minv Minvdag
// Deriv defaults to zero.
// FermOp.MooeeInvDag(PhiOdd,Y);
// FermOp.MooeeInv(Y,X);
// FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
// FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
assert(FermOp.ConstEE() == 1);
assert(FermOp.ConstEE() == 1);
/*
FermOp.MooeeInvDag(PhiOdd,Y);
FermOp.MooeeInv(Y,X);
FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
*/
/*
FermOp.MooeeInvDag(PhiOdd,Y);
FermOp.MooeeInv(Y,X);
FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
*/
dSdU = Ta(dSdU);
};
};
}
dSdU = Ta(dSdU);
};
};
}
}
#endif