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365 lines
10 KiB
C++
365 lines
10 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./benchmarks/Benchmark_dwf.cc
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: paboyle <paboyle@ph.ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/Grid.h>
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using namespace std;
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using namespace Grid;
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using namespace Grid::QCD;
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template<class d>
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struct scal {
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d internal;
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};
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Gamma::GammaMatrix Gmu [] = {
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Gamma::GammaX,
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Gamma::GammaY,
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Gamma::GammaZ,
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Gamma::GammaT
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};
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void benchDw(std::vector<int> & L, int Ls, int threads, int report =0 );
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void benchsDw(std::vector<int> & L, int Ls, int threads, int report=0 );
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int main (int argc, char ** argv)
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{
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Grid_init(&argc,&argv);
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const int Ls=8;
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int threads = GridThread::GetThreads();
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std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
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if ( getenv("ASMOPT") ) {
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QCD::WilsonKernelsStatic::AsmOpt=1;
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} else {
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QCD::WilsonKernelsStatic::AsmOpt=0;
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}
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std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
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std::cout<<GridLogMessage << "= Benchmarking DWF"<<std::endl;
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std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
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std::cout<<GridLogMessage << "Volume \t\t\tProcs \t Dw \t eoDw \t sDw \t eosDw (Mflop/s) "<<std::endl;
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std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
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int Lmax=32;
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int dmin=0;
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if ( getenv("LMAX") ) Lmax=atoi(getenv("LMAX"));
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if ( getenv("DMIN") ) dmin=atoi(getenv("DMIN"));
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for (int L=8;L<=Lmax;L*=2){
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std::vector<int> latt4(4,L);
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for(int d=4;d>dmin;d--){
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if ( d<=3 ) latt4[d]*=2;
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std::cout << GridLogMessage <<"\t";
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for(int d=0;d<Nd;d++){
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std::cout<<latt4[d]<<"x";
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}
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std::cout <<Ls<<"\t" ;
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benchDw (latt4,Ls,threads,0);
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benchsDw(latt4,Ls,threads,0);
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std::cout<<std::endl;
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}
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}
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std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
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{
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std::vector<int> latt4(4,16);
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std::cout<<GridLogMessage << "16^4 Dw miss rate"<<std::endl;
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benchDw (latt4,Ls,threads,1);
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std::cout<<GridLogMessage << "16^4 sDw miss rate"<<std::endl;
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benchsDw(latt4,Ls,threads,1);
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}
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Grid_finalize();
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}
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#undef CHECK
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void benchDw(std::vector<int> & latt4, int Ls, int threads,int report )
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{
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(latt4, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
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GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
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GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
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std::vector<int> seeds4({1,2,3,4});
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std::vector<int> seeds5({5,6,7,8});
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#ifdef CHECK
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GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
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GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
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LatticeFermion src (FGrid); random(RNG5,src);
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LatticeGaugeField Umu(UGrid);
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random(RNG4,Umu);
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#else
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LatticeFermion src (FGrid); src=zero;
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LatticeGaugeField Umu(UGrid); Umu=zero;
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#endif
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LatticeFermion result(FGrid); result=zero;
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LatticeFermion ref(FGrid); ref=zero;
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LatticeFermion tmp(FGrid);
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LatticeFermion err(FGrid);
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ColourMatrix cm = Complex(1.0,0.0);
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LatticeGaugeField Umu5d(FGrid);
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// replicate across fifth dimension
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for(int ss=0;ss<Umu._grid->oSites();ss++){
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for(int s=0;s<Ls;s++){
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Umu5d._odata[Ls*ss+s] = Umu._odata[ss];
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}
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}
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////////////////////////////////////
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// Naive wilson implementation
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////////////////////////////////////
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std::vector<LatticeColourMatrix> U(4,FGrid);
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for(int mu=0;mu<Nd;mu++){
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U[mu] = PeekIndex<LorentzIndex>(Umu5d,mu);
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}
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#ifdef CHECK
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if (1) {
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ref = zero;
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for(int mu=0;mu<Nd;mu++){
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tmp = U[mu]*Cshift(src,mu+1,1);
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ref=ref + tmp - Gamma(Gmu[mu])*tmp;
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tmp =adj(U[mu])*src;
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tmp =Cshift(tmp,mu+1,-1);
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ref=ref + tmp + Gamma(Gmu[mu])*tmp;
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}
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ref = -0.5*ref;
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}
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#endif
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RealD mass=0.1;
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RealD M5 =1.8;
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RealD NP = UGrid->_Nprocessors;
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DomainWallFermionR Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
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double t0=usecond();
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Dw.Dhop(src,result,0);
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double t1=usecond();
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#ifdef TIMERS_OFF
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int ncall =10;
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#else
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int ncall =1+(int) ((5.0*1000*1000)/(t1-t0));
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#endif
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if (ncall < 5 ) exit(0);
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Dw.Dhop(src,result,0);
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PerformanceCounter Counter(8);
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Counter.Start();
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t0=usecond();
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for(int i=0;i<ncall;i++){
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Dw.Dhop(src,result,0);
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}
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t1=usecond();
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Counter.Stop();
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if ( report ) {
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Counter.Report();
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}
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if ( ! report ) {
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double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
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double flops=1344*volume*ncall;
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std::cout <<"\t"<<NP<< "\t"<<flops/(t1-t0)<< "\t";
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}
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#ifdef CHECK
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err = ref-result;
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RealD errd = norm2(err);
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if ( errd> 1.0e-4 ) {
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std::cout<<GridLogMessage << "oops !!! norm diff "<< norm2(err)<<std::endl;
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exit(-1);
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}
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#endif
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LatticeFermion src_e (FrbGrid);
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LatticeFermion src_o (FrbGrid);
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LatticeFermion r_e (FrbGrid);
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LatticeFermion r_o (FrbGrid);
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LatticeFermion r_eo (FGrid);
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pickCheckerboard(Even,src_e,src);
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pickCheckerboard(Odd,src_o,src);
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{
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Dw.DhopEO(src_o,r_e,DaggerNo);
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double t0=usecond();
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for(int i=0;i<ncall;i++){
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Dw.DhopEO(src_o,r_e,DaggerNo);
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}
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double t1=usecond();
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if(!report){
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double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
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double flops=(1344.0*volume*ncall)/2;
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std::cout<< flops/(t1-t0);
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}
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}
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}
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#define CHECK_SDW
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void benchsDw(std::vector<int> & latt4, int Ls, int threads, int report )
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{
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(latt4, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
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GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
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GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
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GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
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GridCartesian * sUGrid = SpaceTimeGrid::makeFourDimDWFGrid(latt4,GridDefaultMpi());
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GridRedBlackCartesian * sUrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(sUGrid);
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GridCartesian * sFGrid = SpaceTimeGrid::makeFiveDimDWFGrid(Ls,UGrid);
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GridRedBlackCartesian * sFrbGrid = SpaceTimeGrid::makeFiveDimDWFRedBlackGrid(Ls,UGrid);
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std::vector<int> seeds4({1,2,3,4});
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std::vector<int> seeds5({5,6,7,8});
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#ifdef CHECK_SDW
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GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
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GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
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LatticeFermion src (FGrid); random(RNG5,src);
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LatticeGaugeField Umu(UGrid);
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random(RNG4,Umu);
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#else
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LatticeFermion src (FGrid); src=zero;
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LatticeGaugeField Umu(UGrid); Umu=zero;
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#endif
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LatticeFermion result(FGrid); result=zero;
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LatticeFermion ref(FGrid); ref=zero;
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LatticeFermion tmp(FGrid);
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LatticeFermion err(FGrid);
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ColourMatrix cm = Complex(1.0,0.0);
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LatticeGaugeField Umu5d(FGrid);
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// replicate across fifth dimension
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for(int ss=0;ss<Umu._grid->oSites();ss++){
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for(int s=0;s<Ls;s++){
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Umu5d._odata[Ls*ss+s] = Umu._odata[ss];
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}
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}
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RealD mass=0.1;
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RealD M5 =1.8;
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typedef WilsonFermion5D<DomainWallVec5dImplR> WilsonFermion5DR;
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LatticeFermion ssrc(sFGrid);
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LatticeFermion sref(sFGrid);
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LatticeFermion sresult(sFGrid);
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WilsonFermion5DR sDw(Umu,*sFGrid,*sFrbGrid,*sUGrid,*sUrbGrid,M5);
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for(int x=0;x<latt4[0];x++){
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for(int y=0;y<latt4[1];y++){
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for(int z=0;z<latt4[2];z++){
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for(int t=0;t<latt4[3];t++){
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for(int s=0;s<Ls;s++){
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std::vector<int> site({s,x,y,z,t});
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SpinColourVector tmp;
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peekSite(tmp,src,site);
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pokeSite(tmp,ssrc,site);
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}}}}}
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double t0=usecond();
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sDw.Dhop(ssrc,sresult,0);
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double t1=usecond();
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#ifdef TIMERS_OFF
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int ncall =10;
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#else
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int ncall =1+(int) ((5.0*1000*1000)/(t1-t0));
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#endif
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PerformanceCounter Counter(8);
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Counter.Start();
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t0=usecond();
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for(int i=0;i<ncall;i++){
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sDw.Dhop(ssrc,sresult,0);
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}
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t1=usecond();
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Counter.Stop();
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if ( report ) {
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Counter.Report();
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} else {
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double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
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double flops=1344*volume*ncall;
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std::cout<<"\t"<< flops/(t1-t0);
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}
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LatticeFermion sr_eo(sFGrid);
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LatticeFermion serr(sFGrid);
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LatticeFermion ssrc_e (sFrbGrid);
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LatticeFermion ssrc_o (sFrbGrid);
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LatticeFermion sr_e (sFrbGrid);
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LatticeFermion sr_o (sFrbGrid);
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pickCheckerboard(Even,ssrc_e,ssrc);
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pickCheckerboard(Odd,ssrc_o,ssrc);
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setCheckerboard(sr_eo,ssrc_o);
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setCheckerboard(sr_eo,ssrc_e);
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sr_e = zero;
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sr_o = zero;
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sDw.DhopEO(ssrc_o,sr_e,DaggerNo);
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PerformanceCounter CounterSdw(8);
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CounterSdw.Start();
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t0=usecond();
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for(int i=0;i<ncall;i++){
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__SSC_START;
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sDw.DhopEO(ssrc_o,sr_e,DaggerNo);
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__SSC_STOP;
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}
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t1=usecond();
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CounterSdw.Stop();
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if ( report ) {
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CounterSdw.Report();
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} else {
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double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
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double flops=(1344.0*volume*ncall)/2;
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std::cout<<"\t"<< flops/(t1-t0);
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}
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}
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