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physical fermion interface, cshift benchmark in SU3.

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paboyle
2018-04-18 01:43:29 +01:00
parent f7f043d8cf
commit b5510427f9
4 changed files with 86 additions and 5 deletions
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44
benchmarks/Benchmark_su3.cc
View File

@@ -35,7 +35,8 @@ using namespace Grid::QCD;
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
#define LMAX (64)
#define LMAX (40)
#define LINC (4)
int64_t Nloop=20;
@@ -51,7 +52,7 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s\t\t GFlop/s"<<std::endl;
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
for(int lat=2;lat<=LMAX;lat+=2){
for(int lat=2;lat<=LMAX;lat+=LINC){
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
int64_t vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
@@ -83,7 +84,7 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s\t\t GFlop/s"<<std::endl;
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
for(int lat=2;lat<=LMAX;lat+=2){
for(int lat=2;lat<=LMAX;lat+=LINC){
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
int64_t vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
@@ -114,7 +115,7 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s\t\t GFlop/s"<<std::endl;
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
for(int lat=2;lat<=LMAX;lat+=2){
for(int lat=2;lat<=LMAX;lat+=LINC){
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
int64_t vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
@@ -145,7 +146,7 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s\t\t GFlop/s"<<std::endl;
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
for(int lat=2;lat<=LMAX;lat+=2){
for(int lat=2;lat<=LMAX;lat+=LINC){
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
int64_t vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
@@ -170,5 +171,38 @@ int main (int argc, char ** argv)
}
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
std::cout<<GridLogMessage << "= Benchmarking SU3xSU3 CovShiftForward(z,x,y)"<<std::endl;
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s\t\t GFlop/s"<<std::endl;
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
for(int lat=2;lat<=LMAX;lat+=LINC){
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
int64_t vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
GridParallelRNG pRNG(&Grid); pRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
LatticeColourMatrix z(&Grid); random(pRNG,z);
LatticeColourMatrix x(&Grid); random(pRNG,x);
LatticeColourMatrix y(&Grid); random(pRNG,y);
for(int mu=0;mu<=4;mu++){
double start=usecond();
for(int64_t i=0;i<Nloop;i++){
z = PeriodicBC::CovShiftForward(x,mu,y);
}
double stop=usecond();
double time = (stop-start)/Nloop*1000.0;
double bytes=3*vol*Nc*Nc*sizeof(Complex);
double flops=Nc*Nc*(8+8+8)*vol;
std::cout<<GridLogMessage<<std::setprecision(3) << lat<<"\t\t"<<bytes<<" \t\t"<<bytes/time<<"\t\t" << flops/time<<std::endl;
}
}
Grid_finalize();
}

29
lib/qcd/action/fermion/CayleyFermion5D.cc
View File

@@ -52,6 +52,35 @@ namespace QCD {
{
}
///////////////////////////////////////////////////////////////
// Physical surface field utilities
///////////////////////////////////////////////////////////////
template<class Impl>
void CayleyFermion5D<Impl>::ExportPhysicalFermionSolution(const FermionField &solution5d,FermionField &exported4d)
{
int Ls = this->Ls;
FermionField tmp(this->FermionGrid());
tmp = solution5d;
conformable(solution5d._grid,this->FermionGrid());
conformable(exported4d._grid,this->GaugeGrid());
axpby_ssp_pminus(tmp, 0., solution5d, 1., solution5d, 0, 0);
axpby_ssp_pplus (tmp, 1., tmp , 1., solution5d, 0, Ls-1);
ExtractSlice(exported4d, tmp, 0, 0);
}
template<class Impl>
void CayleyFermion5D<Impl>::ImportPhysicalFermionSource(const FermionField &input4d,FermionField &imported5d)
{
int Ls = this->Ls;
FermionField tmp(this->FermionGrid());
conformable(imported5d._grid,this->FermionGrid());
conformable(input4d._grid ,this->GaugeGrid());
tmp = zero;
InsertSlice(input4d, tmp, 0 , 0);
InsertSlice(input4d, tmp, Ls-1, 0);
axpby_ssp_pplus (tmp, 0., tmp, 1., tmp, 0, 0);
axpby_ssp_pminus(tmp, 0., tmp, 1., tmp, Ls-1, Ls-1);
Dminus(tmp,imported5d);
}
template<class Impl>
void CayleyFermion5D<Impl>::Dminus(const FermionField &psi, FermionField &chi)
{

5
lib/qcd/action/fermion/CayleyFermion5D.h
View File

@@ -83,8 +83,13 @@ namespace Grid {
virtual void M5D (const FermionField &psi, FermionField &chi);
virtual void M5Ddag(const FermionField &psi, FermionField &chi);
///////////////////////////////////////////////////////////////
// Physical surface field utilities
///////////////////////////////////////////////////////////////
virtual void Dminus(const FermionField &psi, FermionField &chi);
virtual void DminusDag(const FermionField &psi, FermionField &chi);
virtual void ExportPhysicalFermionSolution(const FermionField &solution5d,FermionField &exported4d);
virtual void ImportPhysicalFermionSource(const FermionField &input4d,FermionField &imported5d);
/////////////////////////////////////////////////////
// Instantiate different versions depending on Impl

13
lib/qcd/action/fermion/FermionOperator.h
View File

@@ -128,6 +128,19 @@ namespace Grid {
std::vector<Real> mom,
unsigned int tmin,
unsigned int tmax)=0;
///////////////////////////////////////////////
// Physical field import/export
///////////////////////////////////////////////
virtual void Dminus(const FermionField &psi, FermionField &chi) { chi=psi; }
virtual void DminusDag(const FermionField &psi, FermionField &chi) { chi=psi; }
virtual void ImportPhysicalFermionSource(const FermionField &input,FermionField &imported)
{
imported = input;
};
virtual void ExportPhysicalFermionSolution(const FermionField &solution,FermionField &exported)
{
exported=solution;
};
};
}