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Reorganising the Fermion interface

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This commit is contained in:
Peter Boyle
2015-08-14 14:16:45 +01:00
parent e8462790a9
commit ba8c09a58e
4 changed files with 236 additions and 221 deletions
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1
lib/qcd/action/Actions.h
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@@ -54,6 +54,7 @@
////////////////////////////////////////////
// Fermion operators / actions
////////////////////////////////////////////
#include <qcd/action/fermion/FermionOperatorImpl.h>
#include <qcd/action/fermion/FermionOperator.h>
#include <qcd/action/fermion/WilsonFermion.h> // 4d wilson like

1
lib/qcd/action/fermion/FermionImplTypedefs.h
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@@ -8,3 +8,4 @@
typedef typename Impl::SiteHalfSpinor SiteHalfSpinor;
typedef typename Impl::Compressor Compressor;
typedef WilsonKernels<Impl> Kernels;

223
lib/qcd/action/fermion/FermionOperator.h
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@@ -10,227 +10,7 @@ namespace Grid {
// between gauge representation rank bc's, flavours etc.
// and single/double precision.
////////////////////////////////////////////////////////////////
template<class S,int Nrepresentation=Nc>
class WilsonImpl {
public:
typedef S Simd;
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 iImplGaugeLink = iScalar<iScalar<iMatrix<vtype, Nrepresentation> > >;
template<typename vtype> using iImplGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nd >;
template<typename vtype> using iImplDoubledGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds >;
typedef iImplSpinor <Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplGaugeLink <Simd> SiteGaugeLink;
typedef iImplGaugeField<Simd> SiteGaugeField;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteGaugeLink> GaugeLinkField; // bit ugly naming; polarised gauge field, lorentz... all ugly
typedef Lattice<SiteGaugeField> GaugeField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
static inline void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,CartesianStencil &St){
mult(&phi(),&U(mu),&chi());
}
static 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);
}
}
static inline void InsertForce(GaugeField &mat,const FermionField &Btilde,const FermionField &A,int mu){
GaugeLinkField link(mat._grid);
link = TraceIndex<SpinIndex>(outerProduct(Btilde,A));
PokeIndex<LorentzIndex>(mat,link,mu);
}
};
typedef WilsonImpl<vComplex,Nc> WilsonImplR; // Real.. whichever prec
typedef WilsonImpl<vComplexF,Nc> WilsonImplF; // Float
typedef WilsonImpl<vComplexD,Nc> WilsonImplD; // Double
template<class S,int Nrepresentation=Nc>
class GparityWilsonImpl {
public:
typedef S Simd;
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 iImplGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nd >;
template<typename vtype> using iImplGaugeLink = iScalar<iScalar<iMatrix<vtype, Nrepresentation> > >;
template<typename vtype> using iImplDoubledGaugeField = iVector<iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds >, Ngp >;
typedef iImplSpinor <Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplGaugeLink <Simd> SiteGaugeLink;
typedef iImplGaugeField<Simd> SiteGaugeField;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteGaugeLink> GaugeLinkField; // bit ugly naming; polarised gauge field, lorentz... all ugly
typedef Lattice<SiteGaugeField> GaugeField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
// typedef GparityWilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
typedef WilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
// provide the multiply by link that is differentiated between Gparity (with flavour index) and
// non-Gparity
static inline void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,CartesianStencil &St){
// FIXME; need to be more careful. If this is a simd direction we are still stuffed
// Need access to _simd_layout[mu]. mu is not necessarily dim.
typedef SiteHalfSpinor vobj;
typedef typename SiteHalfSpinor::scalar_object sobj;
vobj vtmp;
sobj stmp;
std::vector<int> gpbc({0,0,0,1,0,0,0,1});
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];
// 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 && gpbc[mu] ) {
if ( sl == 2 ) {
// std::cout << "multLink for mu= "<<mu<<" simd length "<<sl<<std::endl;
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));
}
}
static inline void InsertForce(GaugeField &mat,const FermionField &Btilde,const FermionField &A,int mu){
// Fixme
return;
}
static 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);
std::vector<int> gpdirs({0,0,0,1});
for(int mu=0;mu<Nd;mu++){
LatticeCoordinate(coor,mu);
U = PeekIndex<LorentzIndex>(Umu,mu);
Uconj = conjugate(U);
int neglink = GaugeGrid->GlobalDimensions()[mu]-1;
if ( gpdirs[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 ( gpdirs[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 ( gpdirs[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]();
}
}
}
};
typedef GparityWilsonImpl<vComplex,Nc> GparityWilsonImplR; // Real.. whichever prec
typedef GparityWilsonImpl<vComplexF,Nc> GparityWilsonImplF; // Float
typedef GparityWilsonImpl<vComplexD,Nc> GparityWilsonImplD; // Double
//////////////////////////////////////////////////////////////////////////////
// Four component fermions
@@ -238,10 +18,11 @@ PARALLEL_FOR_LOOP
// Think about multiple representations
//////////////////////////////////////////////////////////////////////////////
template<class Impl>
class FermionOperator : public CheckerBoardedSparseMatrixBase<typename Impl::FermionField>
class FermionOperator : public CheckerBoardedSparseMatrixBase<typename Impl::FermionField>, public Impl
{
public:
#include <qcd/action/fermion/FermionImplTypedefs.h>
public:
GridBase * Grid(void) { return FermionGrid(); }; // this is all the linalg routines need to know

232
lib/qcd/action/fermion/FermionOperatorImpl.h Normal file
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@@ -0,0 +1,232 @@
#ifndef GRID_QCD_FERMION_OPERATOR_IMPL_H
#define GRID_QCD_FERMION_OPERATOR_IMPL_H
namespace Grid {
namespace QCD {
// Variable precision "S" and variable Nc
template<class S,int Nrepresentation=Nc>
class WilsonImpl {
public:
typedef S Simd;
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 iImplGaugeLink = iScalar<iScalar<iMatrix<vtype, Nrepresentation> > >;
template<typename vtype> using iImplGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nd >;
template<typename vtype> using iImplDoubledGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds >;
typedef iImplSpinor <Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplGaugeLink <Simd> SiteGaugeLink;
typedef iImplGaugeField<Simd> SiteGaugeField;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteGaugeLink> GaugeLinkField; // bit ugly naming; polarised gauge field, lorentz... all ugly
typedef Lattice<SiteGaugeField> GaugeField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
typedef WilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
static inline void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,CartesianStencil &St){
mult(&phi(),&U(mu),&chi());
}
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 InsertForce(GaugeField &mat,const FermionField &Btilde,const FermionField &A,int mu){
GaugeLinkField link(mat._grid);
link = TraceIndex<SpinIndex>(outerProduct(Btilde,A));
PokeIndex<LorentzIndex>(mat,link,mu);
}
};
template<class S,int Nrepresentation=Nc>
class GparityWilsonImpl {
public:
typedef S Simd;
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 iImplGaugeField = iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nd >;
template<typename vtype> using iImplGaugeLink = iScalar<iScalar<iMatrix<vtype, Nrepresentation> > >;
template<typename vtype> using iImplDoubledGaugeField = iVector<iVector<iScalar<iMatrix<vtype, Nrepresentation> >, Nds >, Ngp >;
typedef iImplSpinor <Simd> SiteSpinor;
typedef iImplHalfSpinor<Simd> SiteHalfSpinor;
typedef iImplGaugeLink <Simd> SiteGaugeLink;
typedef iImplGaugeField<Simd> SiteGaugeField;
typedef iImplDoubledGaugeField<Simd> SiteDoubledGaugeField;
typedef Lattice<SiteSpinor> FermionField;
typedef Lattice<SiteGaugeLink> GaugeLinkField; // bit ugly naming; polarised gauge field, lorentz... all ugly
typedef Lattice<SiteGaugeField> GaugeField;
typedef Lattice<SiteDoubledGaugeField> DoubledGaugeField;
// typedef GparityWilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
typedef WilsonCompressor<SiteHalfSpinor,SiteSpinor> Compressor;
// provide the multiply by link that is differentiated between Gparity (with flavour index) and
// non-Gparity
static inline void multLink(SiteHalfSpinor &phi,const SiteDoubledGaugeField &U,const SiteHalfSpinor &chi,int mu,StencilEntry *SE,CartesianStencil &St){
typedef SiteHalfSpinor vobj;
typedef typename SiteHalfSpinor::scalar_object sobj;
vobj vtmp;
sobj stmp;
std::vector<int> gpbc({0,0,0,1,0,0,0,1});
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];
// 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 && gpbc[mu] ) {
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));
}
}
static inline void InsertForce(GaugeField &mat,const FermionField &Btilde,const FermionField &A,int mu){
// Fixme
return;
}
static 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);
std::vector<int> gpdirs({0,0,0,1});
for(int mu=0;mu<Nd;mu++){
LatticeCoordinate(coor,mu);
U = PeekIndex<LorentzIndex>(Umu,mu);
Uconj = conjugate(U);
int neglink = GaugeGrid->GlobalDimensions()[mu]-1;
if ( gpdirs[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 ( gpdirs[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 ( gpdirs[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]();
}
}
}
};
// Could QCD, SU2, QED etc...
// Fund, adj, etc...
// Composition with smeared link, bc's etc.. probably need multiple inheritance
typedef WilsonImpl<vComplex ,Nc> WilsonImplR; // Real.. whichever prec
typedef WilsonImpl<vComplexF,Nc> WilsonImplF; // Float
typedef WilsonImpl<vComplexD,Nc> WilsonImplD; // Double
typedef GparityWilsonImpl<vComplex ,Nc> GparityWilsonImplR; // Real.. whichever prec
typedef GparityWilsonImpl<vComplexF,Nc> GparityWilsonImplF; // Float
typedef GparityWilsonImpl<vComplexD,Nc> GparityWilsonImplD; // Double
}
}
#endif