mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-14 01:35:36 +00:00
243 lines
7.4 KiB
C++
243 lines
7.4 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./benchmarks/Benchmark_dwf.cc
|
|
|
|
Copyright (C) 2015
|
|
|
|
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 distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
See the full license in the file "LICENSE" in the top level distribution directory
|
|
*************************************************************************************/
|
|
/* END LEGAL */
|
|
#include <Grid/Grid.h>
|
|
|
|
using namespace std;
|
|
using namespace Grid;
|
|
|
|
template<class d>
|
|
struct scal {
|
|
d internal;
|
|
};
|
|
|
|
Gamma::Algebra Gmu [] = {
|
|
Gamma::Algebra::GammaX,
|
|
Gamma::Algebra::GammaY,
|
|
Gamma::Algebra::GammaZ,
|
|
Gamma::Algebra::GammaT
|
|
};
|
|
|
|
void benchDw(std::vector<int> & L, int Ls, int threads, int report =0 );
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
|
|
std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
|
|
std::cout << GridLogMessage<< "* Kernel options --dslash-generic, --dslash-unroll, --dslash-asm" <<std::endl;
|
|
std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
|
|
|
|
if ( WilsonKernelsStatic::Opt == WilsonKernelsStatic::OptGeneric ) std::cout << GridLogMessage<< "* Using GENERIC Nc WilsonKernels" <<std::endl;
|
|
if ( WilsonKernelsStatic::Opt == WilsonKernelsStatic::OptHandUnroll) std::cout << GridLogMessage<< "* Using Nc=3 WilsonKernels" <<std::endl;
|
|
if ( WilsonKernelsStatic::Opt == WilsonKernelsStatic::OptInlineAsm ) std::cout << GridLogMessage<< "* Using Asm Nc=3 WilsonKernels" <<std::endl;
|
|
std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
|
|
|
|
const int Ls=12;
|
|
int threads = GridThread::GetThreads();
|
|
std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
|
|
std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << "= Benchmarking DWF"<<std::endl;
|
|
std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << "Volume \t\t\tProcs \t Dw \t eoDw "<<std::endl;
|
|
std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
|
|
|
|
int Lmax=16;
|
|
int dmin=2;
|
|
if ( getenv("LMAX") ) Lmax=atoi(getenv("LMAX"));
|
|
if ( getenv("DMIN") ) dmin=atoi(getenv("DMIN"));
|
|
for (int L=8;L<=Lmax;L*=2){
|
|
std::vector<int> latt4(4,L);
|
|
for(int d=4;d>dmin;d--){
|
|
if ( d<=3 ) latt4[d]*=2;
|
|
std::cout << GridLogMessage <<"\t";
|
|
for(int d=0;d<Nd;d++){
|
|
std::cout<<latt4[d]<<"x";
|
|
}
|
|
std::cout <<Ls<<"\t" ;
|
|
benchDw (latt4,Ls,threads,0);
|
|
std::cout<<std::endl;
|
|
}
|
|
}
|
|
std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
|
|
#ifdef PERFCOUNT
|
|
{
|
|
std::vector<int> latt4(4,16);
|
|
std::cout<<GridLogMessage << "16^4 Dw miss rate"<<std::endl;
|
|
benchDw (latt4,Ls,threads,1);
|
|
}
|
|
#endif
|
|
Grid_finalize();
|
|
}
|
|
|
|
#undef CHECK
|
|
|
|
void benchDw(std::vector<int> & latt4, int Ls, int threads,int report )
|
|
{
|
|
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(latt4, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
|
|
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
|
|
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
|
|
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
|
|
long unsigned int single_site_flops = 8*Nc*(7+16*Nc);
|
|
|
|
std::vector<int> seeds4({1,2,3,4});
|
|
std::vector<int> seeds5({5,6,7,8});
|
|
|
|
#ifdef CHECK
|
|
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
|
|
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
|
|
LatticeFermion src (FGrid); random(RNG5,src);
|
|
LatticeGaugeField Umu(UGrid);
|
|
random(RNG4,Umu);
|
|
#else
|
|
LatticeFermion src (FGrid); src=Zero();
|
|
LatticeGaugeField Umu(UGrid); Umu=Zero();
|
|
#endif
|
|
|
|
LatticeFermion result(FGrid); result=Zero();
|
|
LatticeFermion ref(FGrid); ref=Zero();
|
|
LatticeFermion tmp(FGrid);
|
|
LatticeFermion err(FGrid);
|
|
|
|
ColourMatrix cm = Complex(1.0,0.0);
|
|
|
|
LatticeGaugeField Umu5d(FGrid);
|
|
|
|
// replicate across fifth dimension
|
|
{
|
|
autoView(Umu5d_v , Umu5d, CpuWrite);
|
|
autoView( Umu_v , Umu, CpuRead);
|
|
for(int ss=0;ss<Umu.Grid()->oSites();ss++){
|
|
for(int s=0;s<Ls;s++){
|
|
Umu5d_v[Ls*ss+s] = Umu_v[ss];
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////
|
|
// Naive wilson implementation
|
|
////////////////////////////////////
|
|
std::vector<LatticeColourMatrix> U(4,FGrid);
|
|
for(int mu=0;mu<Nd;mu++){
|
|
U[mu] = PeekIndex<LorentzIndex>(Umu5d,mu);
|
|
}
|
|
|
|
#ifdef CHECK
|
|
if (1) {
|
|
|
|
ref = Zero();
|
|
for(int mu=0;mu<Nd;mu++){
|
|
tmp = U[mu]*Cshift(src,mu+1,1);
|
|
ref=ref + tmp - Gamma(Gmu[mu])*tmp;
|
|
|
|
tmp =adj(U[mu])*src;
|
|
tmp =Cshift(tmp,mu+1,-1);
|
|
ref=ref + tmp + Gamma(Gmu[mu])*tmp;
|
|
}
|
|
ref = -0.5*ref;
|
|
}
|
|
#endif
|
|
|
|
RealD mass=0.1;
|
|
RealD M5 =1.8;
|
|
RealD NP = UGrid->_Nprocessors;
|
|
|
|
DomainWallFermionD Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
|
|
|
|
double t0=usecond();
|
|
Dw.Dhop(src,result,0);
|
|
double t1=usecond();
|
|
|
|
#ifdef TIMERS_OFF
|
|
int ncall =10;
|
|
#else
|
|
int ncall =1+(int) ((5.0*1000*1000)/(t1-t0));
|
|
#endif
|
|
|
|
if (ncall < 5 ) exit(0);
|
|
|
|
Dw.Dhop(src,result,0);
|
|
#ifdef PERFCOUNT
|
|
PerformanceCounter Counter(8);
|
|
Counter.Start();
|
|
#endif
|
|
t0=usecond();
|
|
for(int i=0;i<ncall;i++){
|
|
Dw.Dhop(src,result,0);
|
|
}
|
|
t1=usecond();
|
|
#ifdef PERFCOUNT
|
|
Counter.Stop();
|
|
if ( report ) {
|
|
Counter.Report();
|
|
}
|
|
#endif
|
|
if ( ! report ) {
|
|
double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
|
|
double flops=single_site_flops*volume*ncall;
|
|
std::cout <<"\t"<<NP<< "\t"<<flops/(t1-t0)<< "\t";
|
|
}
|
|
|
|
#ifdef CHECK
|
|
err = ref-result;
|
|
RealD errd = norm2(err);
|
|
if ( errd> 1.0e-4 ) {
|
|
std::cout<<GridLogMessage << "oops !!! norm diff "<< norm2(err)<<std::endl;
|
|
exit(-1);
|
|
}
|
|
#endif
|
|
|
|
LatticeFermion src_e (FrbGrid);
|
|
LatticeFermion src_o (FrbGrid);
|
|
LatticeFermion r_e (FrbGrid);
|
|
LatticeFermion r_o (FrbGrid);
|
|
LatticeFermion r_eo (FGrid);
|
|
|
|
pickCheckerboard(Even,src_e,src);
|
|
pickCheckerboard(Odd,src_o,src);
|
|
|
|
{
|
|
Dw.DhopEO(src_o,r_e,DaggerNo);
|
|
double t0=usecond();
|
|
for(int i=0;i<ncall;i++){
|
|
Dw.DhopEO(src_o,r_e,DaggerNo);
|
|
}
|
|
double t1=usecond();
|
|
|
|
if(!report){
|
|
double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
|
|
double flops=(single_site_flops*volume*ncall)/2.0;
|
|
std::cout<< flops/(t1-t0);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|