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https://github.com/paboyle/Grid.git
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Various precision options
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Peter Boyle
parent
af9ecb8b41
commit
25df2d2c3b
@ -123,26 +123,44 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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long unsigned int single_site_flops = 8*Nc*(7+16*Nc);
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,vComplexF::Nsimd()),GridDefaultMpi());
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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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#define DOUBLE
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#ifdef SINGLE
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typedef vComplexF Simd;
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typedef LatticeFermionF FermionField;
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typedef LatticeGaugeFieldF GaugeField;
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typedef LatticeColourMatrixF ColourMatrixField;
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typedef DomainWallFermionF FermionAction;
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#endif
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#ifdef DOUBLE
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typedef vComplexD Simd;
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typedef LatticeFermionD FermionField;
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typedef LatticeGaugeFieldD GaugeField;
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typedef LatticeColourMatrixD ColourMatrixField;
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typedef DomainWallFermionD FermionAction;
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#endif
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#ifdef DOUBLE2
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typedef vComplexD2 Simd;
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typedef LatticeFermionD2 FermionField;
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typedef LatticeGaugeFieldD2 GaugeField;
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typedef LatticeColourMatrixD2 ColourMatrixField;
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typedef DomainWallFermionD2 FermionAction;
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#endif
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GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(GridDefaultLatt(), GridDefaultSimd(Nd,Simd::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(GridDefaultLatt(),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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std::cout << GridLogMessage << "Initialising 4d RNG" << std::endl;
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GridParallelRNG RNG4(UGrid); RNG4.SeedUniqueString(std::string("The 4D RNG"));
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std::cout << GridLogMessage << "Initialising 5d RNG" << std::endl;
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GridParallelRNG RNG5(FGrid); RNG5.SeedUniqueString(std::string("The 5D RNG"));
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LatticeFermionF src (FGrid); random(RNG5,src);
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FermionField src (FGrid); random(RNG5,src);
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#if 0
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src = Zero();
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{
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@ -158,14 +176,14 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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src = src*N2;
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#endif
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LatticeFermionF result(FGrid); result=Zero();
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LatticeFermionF ref(FGrid); ref=Zero();
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LatticeFermionF tmp(FGrid);
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LatticeFermionF err(FGrid);
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FermionField result(FGrid); result=Zero();
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FermionField ref(FGrid); ref=Zero();
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FermionField tmp(FGrid);
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FermionField err(FGrid);
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std::cout << GridLogMessage << "Drawing gauge field" << std::endl;
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LatticeGaugeFieldF Umu(UGrid);
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LatticeGaugeFieldF UmuCopy(UGrid);
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GaugeField Umu(UGrid);
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GaugeField UmuCopy(UGrid);
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SU<Nc>::HotConfiguration(RNG4,Umu);
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UmuCopy=Umu;
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std::cout << GridLogMessage << "Random gauge initialised " << std::endl;
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@ -179,13 +197,13 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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std::cout << GridLogMessage << "Applying BCs for Dirichlet Block5 " << Dirichlet << std::endl;
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std::cout << GridLogMessage << "Applying BCs for Dirichlet Block4 " << Block << std::endl;
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DirichletFilter<LatticeGaugeFieldF> Filter(Block);
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DirichletFilter<GaugeField> Filter(Block);
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Filter.applyFilter(Umu);
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////////////////////////////////////
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// Naive wilson implementation
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////////////////////////////////////
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std::vector<LatticeColourMatrixF> U(4,UGrid);
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std::vector<ColourMatrixField> U(4,UGrid);
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for(int mu=0;mu<Nd;mu++){
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U[mu] = PeekIndex<LorentzIndex>(Umu,mu);
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}
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@ -236,10 +254,8 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
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std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
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std::cout << GridLogMessage<< "* Benchmarking DomainWallFermionR::Dhop "<<std::endl;
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std::cout << GridLogMessage<< "* Vectorising space-time by "<<vComplexF::Nsimd()<<std::endl;
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std::cout << GridLogMessage<< "* VComplexF size is "<<sizeof(vComplexF)<< " B"<<std::endl;
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if ( sizeof(RealF)==4 ) std::cout << GridLogMessage<< "* SINGLE precision "<<std::endl;
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if ( sizeof(RealF)==8 ) std::cout << GridLogMessage<< "* DOUBLE precision "<<std::endl;
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std::cout << GridLogMessage<< "* Vectorising space-time by "<<Simd::Nsimd()<<std::endl;
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std::cout << GridLogMessage<< "* VComplex size is "<<sizeof(Simd)<< " B"<<std::endl;
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#ifdef GRID_OMP
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if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute ) std::cout << GridLogMessage<< "* Using Overlapped Comms/Compute" <<std::endl;
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if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsThenCompute) std::cout << GridLogMessage<< "* Using sequential comms compute" <<std::endl;
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@ -249,13 +265,14 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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if ( WilsonKernelsStatic::Opt == WilsonKernelsStatic::OptInlineAsm ) std::cout << GridLogMessage<< "* Using Asm Nc=3 WilsonKernels" <<std::endl;
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std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
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DomainWallFermionF::ImplParams p;
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FermionAction::ImplParams p;
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p.dirichlet=Dirichlet;
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DomainWallFermionF Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,p);
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FermionAction Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5,p);
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Dw.ImportGauge(Umu);
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int ncall =300;
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RealD n2e;
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if (1) {
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FGrid->Barrier();
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Dw.Dhop(src,result,0);
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@ -270,8 +287,8 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
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double flops=single_site_flops*volume*ncall;
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auto nsimd = vComplex::Nsimd();
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auto simdwidth = sizeof(vComplex);
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auto nsimd = Simd::Nsimd();
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auto simdwidth = sizeof(Simd);
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// RF: Nd Wilson * Ls, Nd gauge * Ls, Nc colors
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double data_rf = volume * ((2*Nd+1)*Nd*Nc + 2*Nd*Nc*Nc) * simdwidth / nsimd * ncall / (1024.*1024.*1024.);
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@ -283,17 +300,16 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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std::cout<<GridLogMessage << "mflop/s = "<< flops/(t1-t0)<<std::endl;
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std::cout<<GridLogMessage << "mflop/s per rank = "<< flops/(t1-t0)/NP<<std::endl;
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std::cout<<GridLogMessage << "mflop/s per node = "<< flops/(t1-t0)/NN<<std::endl;
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// std::cout<<GridLogMessage << "RF GiB/s (base 2) = "<< 1000000. * data_rf/((t1-t0))<<std::endl;
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// std::cout<<GridLogMessage << "mem GiB/s (base 2) = "<< 1000000. * data_mem/((t1-t0))<<std::endl;
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err = ref-result;
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std::cout<<GridLogMessage << "norm diff "<< norm2(err)<<std::endl;
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n2e = norm2(err);
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std::cout<<GridLogMessage << "norm diff "<< n2e<< " Line "<<__LINE__ <<std::endl;
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if(( norm2(err)>1.0e-4) ) {
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if(( n2e>1.0e-4) ) {
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std::cout<<GridLogMessage << "WRONG RESULT" << std::endl;
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FGrid->Barrier();
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exit(-1);
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}
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assert (norm2(err)< 1.0e-4 );
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assert (n2e< 1.0e-4 );
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}
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if (1)
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@ -348,14 +364,16 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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std::cout<<GridLogMessage << "norm dag result "<< norm2(result)<<std::endl;
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std::cout<<GridLogMessage << "norm dag ref "<< norm2(ref)<<std::endl;
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err = ref-result;
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std::cout<<GridLogMessage << "norm dag diff "<< norm2(err)<<std::endl;
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assert((norm2(err)<1.0e-4));
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n2e= norm2(err);
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std::cout<<GridLogMessage << "norm dag diff "<< n2e<< " Line "<<__LINE__ <<std::endl;
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assert((n2e)<1.0e-4);
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LatticeFermionF src_e (FrbGrid);
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LatticeFermionF src_o (FrbGrid);
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LatticeFermionF r_e (FrbGrid);
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LatticeFermionF r_o (FrbGrid);
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LatticeFermionF r_eo (FGrid);
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FermionField src_e (FrbGrid);
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FermionField src_o (FrbGrid);
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FermionField r_e (FrbGrid);
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FermionField r_o (FrbGrid);
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FermionField r_eo (FGrid);
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std::cout<<GridLogMessage << "Calling Deo and Doe and //assert Deo+Doe == Dunprec"<<std::endl;
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pickCheckerboard(Even,src_e,src);
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@ -367,10 +385,8 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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// S-direction is INNERMOST and takes no part in the parity.
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std::cout << GridLogMessage<< "*********************************************************" <<std::endl;
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std::cout << GridLogMessage<< "* Benchmarking DomainWallFermionF::DhopEO "<<std::endl;
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std::cout << GridLogMessage<< "* Vectorising space-time by "<<vComplexF::Nsimd()<<std::endl;
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if ( sizeof(RealF)==4 ) std::cout << GridLogMessage<< "* SINGLE precision "<<std::endl;
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if ( sizeof(RealF)==8 ) std::cout << GridLogMessage<< "* DOUBLE precision "<<std::endl;
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std::cout << GridLogMessage<< "* Benchmarking DomainWallFermion::DhopEO "<<std::endl;
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std::cout << GridLogMessage<< "* Vectorising space-time by "<<Simd::Nsimd()<<std::endl;
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#ifdef GRID_OMP
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if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsAndCompute ) std::cout << GridLogMessage<< "* Using Overlapped Comms/Compute" <<std::endl;
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if ( WilsonKernelsStatic::Comms == WilsonKernelsStatic::CommsThenCompute) std::cout << GridLogMessage<< "* Using sequential comms compute" <<std::endl;
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@ -384,13 +400,7 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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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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#ifdef CUDA_PROFILE
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if(i==10) cudaProfilerStart();
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#endif
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Dw.DhopEO(src_o,r_e,DaggerNo);
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#ifdef CUDA_PROFILE
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if(i==20) cudaProfilerStop();
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#endif
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}
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double t1=usecond();
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FGrid->Barrier();
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@ -414,8 +424,9 @@ void Benchmark(int Ls, Coordinate Dirichlet)
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setCheckerboard(r_eo,r_e);
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err = r_eo-result;
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std::cout<<GridLogMessage << "norm diff "<< norm2(err)<<std::endl;
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assert(norm2(err)<1.0e-4);
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n2e= norm2(err);
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std::cout<<GridLogMessage << "norm diff "<< n2e<< " Line "<<__LINE__ <<std::endl;
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assert(n2e<1.0e-4);
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pickCheckerboard(Even,src_e,err);
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pickCheckerboard(Odd,src_o,err);
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