mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 07:55:35 +00:00
222 lines
6.8 KiB
C++
222 lines
6.8 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.h>
|
|
|
|
using namespace std;
|
|
using namespace Grid;
|
|
using namespace Grid::QCD;
|
|
|
|
template<class d>
|
|
struct scal {
|
|
d internal;
|
|
};
|
|
|
|
Gamma::GammaMatrix Gmu [] = {
|
|
Gamma::GammaX,
|
|
Gamma::GammaY,
|
|
Gamma::GammaZ,
|
|
Gamma::GammaT
|
|
};
|
|
|
|
bool overlapComms = false;
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
if( GridCmdOptionExists(argv,argv+argc,"--asynch") ){
|
|
overlapComms = true;
|
|
}
|
|
|
|
int threads = GridThread::GetThreads();
|
|
std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
|
|
|
|
std::vector<int> latt4 = GridDefaultLatt();
|
|
const int Ls=16;
|
|
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
|
|
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
|
|
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
|
|
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
|
|
|
|
std::vector<int> seeds4({1,2,3,4});
|
|
std::vector<int> seeds5({5,6,7,8});
|
|
|
|
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
|
|
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
|
|
|
|
LatticeFermion src (FGrid); random(RNG5,src);
|
|
LatticeFermion result(FGrid); result=zero;
|
|
LatticeFermion ref(FGrid); ref=zero;
|
|
LatticeFermion tmp(FGrid);
|
|
LatticeFermion err(FGrid);
|
|
|
|
ColourMatrix cm = Complex(1.0,0.0);
|
|
|
|
LatticeGaugeField Umu(UGrid); random(RNG4,Umu);
|
|
LatticeGaugeField Umu5d(FGrid);
|
|
|
|
// replicate across fifth dimension
|
|
for(int ss=0;ss<Umu._grid->oSites();ss++){
|
|
for(int s=0;s<Ls;s++){
|
|
Umu5d._odata[Ls*ss+s] = Umu._odata[ss];
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////
|
|
// Naive wilson implementation
|
|
////////////////////////////////////
|
|
std::vector<LatticeColourMatrix> U(4,FGrid);
|
|
for(int mu=0;mu<Nd;mu++){
|
|
U[mu] = PeekIndex<LorentzIndex>(Umu5d,mu);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
RealD mass=0.1;
|
|
RealD M5 =1.8;
|
|
|
|
typename DomainWallFermionR::ImplParams params;
|
|
params.overlapCommsCompute = overlapComms;
|
|
|
|
RealD NP = UGrid->_Nprocessors;
|
|
|
|
DomainWallFermionR Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,params);
|
|
|
|
std::cout<<GridLogMessage << "Calling Dw"<<std::endl;
|
|
int ncall=1000;
|
|
{
|
|
double t0=usecond();
|
|
for(int i=0;i<ncall;i++){
|
|
Dw.Dhop(src,result,0);
|
|
}
|
|
double t1=usecond();
|
|
|
|
double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
|
|
double flops=1344*volume*ncall;
|
|
|
|
std::cout<<GridLogMessage << "Called Dw "<<ncall<<" times in "<<t1-t0<<" us"<<std::endl;
|
|
std::cout<<GridLogMessage << "norm result "<< norm2(result)<<std::endl;
|
|
std::cout<<GridLogMessage << "norm ref "<< norm2(ref)<<std::endl;
|
|
std::cout<<GridLogMessage << "mflop/s = "<< flops/(t1-t0)<<std::endl;
|
|
std::cout<<GridLogMessage << "mflop/s per node = "<< flops/(t1-t0)/NP<<std::endl;
|
|
err = ref-result;
|
|
std::cout<<GridLogMessage << "norm diff "<< norm2(err)<<std::endl;
|
|
Dw.Report();
|
|
}
|
|
|
|
|
|
if (1)
|
|
{ // Naive wilson dag implementation
|
|
ref = zero;
|
|
for(int mu=0;mu<Nd;mu++){
|
|
|
|
// ref = src - Gamma(Gamma::GammaX)* src ; // 1+gamma_x
|
|
tmp = U[mu]*Cshift(src,mu+1,1);
|
|
for(int i=0;i<ref._odata.size();i++){
|
|
ref._odata[i]+= tmp._odata[i] + Gamma(Gmu[mu])*tmp._odata[i]; ;
|
|
}
|
|
|
|
tmp =adj(U[mu])*src;
|
|
tmp =Cshift(tmp,mu+1,-1);
|
|
for(int i=0;i<ref._odata.size();i++){
|
|
ref._odata[i]+= tmp._odata[i] - Gamma(Gmu[mu])*tmp._odata[i]; ;
|
|
}
|
|
}
|
|
ref = -0.5*ref;
|
|
}
|
|
Dw.Dhop(src,result,1);
|
|
std::cout<<GridLogMessage << "Called DwDag"<<std::endl;
|
|
std::cout<<GridLogMessage << "norm result "<< norm2(result)<<std::endl;
|
|
std::cout<<GridLogMessage << "norm ref "<< norm2(ref)<<std::endl;
|
|
err = ref-result;
|
|
std::cout<<GridLogMessage << "norm diff "<< norm2(err)<<std::endl;
|
|
|
|
LatticeFermion src_e (FrbGrid);
|
|
LatticeFermion src_o (FrbGrid);
|
|
LatticeFermion r_e (FrbGrid);
|
|
LatticeFermion r_o (FrbGrid);
|
|
LatticeFermion r_eo (FGrid);
|
|
|
|
|
|
std::cout<<GridLogMessage << "Calling Deo and Doe"<<std::endl;
|
|
pickCheckerboard(Even,src_e,src);
|
|
pickCheckerboard(Odd,src_o,src);
|
|
|
|
std::cout<<GridLogMessage << "src_e"<<norm2(src_e)<<std::endl;
|
|
std::cout<<GridLogMessage << "src_o"<<norm2(src_o)<<std::endl;
|
|
|
|
{
|
|
double t0=usecond();
|
|
for(int i=0;i<ncall;i++){
|
|
Dw.DhopEO(src_o,r_e,DaggerNo);
|
|
}
|
|
double t1=usecond();
|
|
|
|
double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
|
|
double flops=(1344.0*volume*ncall)/2;
|
|
|
|
std::cout<<GridLogMessage << "Deo mflop/s = "<< flops/(t1-t0)<<std::endl;
|
|
std::cout<<GridLogMessage << "Deo mflop/s per node "<< flops/(t1-t0)/NP<<std::endl;
|
|
}
|
|
|
|
Dw.DhopEO(src_o,r_e,DaggerNo);
|
|
Dw.DhopOE(src_e,r_o,DaggerNo);
|
|
Dw.Dhop (src ,result,DaggerNo);
|
|
|
|
std::cout<<GridLogMessage << "r_e"<<norm2(r_e)<<std::endl;
|
|
std::cout<<GridLogMessage << "r_o"<<norm2(r_o)<<std::endl;
|
|
std::cout<<GridLogMessage << "res"<<norm2(result)<<std::endl;
|
|
|
|
setCheckerboard(r_eo,r_o);
|
|
setCheckerboard(r_eo,r_e);
|
|
|
|
err = r_eo-result;
|
|
std::cout<<GridLogMessage << "norm diff "<< norm2(err)<<std::endl;
|
|
|
|
pickCheckerboard(Even,src_e,err);
|
|
pickCheckerboard(Odd,src_o,err);
|
|
std::cout<<GridLogMessage << "norm diff even "<< norm2(src_e)<<std::endl;
|
|
std::cout<<GridLogMessage << "norm diff odd "<< norm2(src_o)<<std::endl;
|
|
|
|
Grid_finalize();
|
|
}
|