portelli/Grid
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Starting a benchmarking sub dir

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This commit is contained in:
Peter Boyle
2015-05-02 17:52:36 +01:00
parent bdf18941a2
commit 6a39089a43
6 changed files with 7 additions and 6 deletions
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107
tests/Grid_wilson.cc
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@ -1,107 +0,0 @@
#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
};
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
std::vector<int> simd_layout({1,1,2,2});
std::vector<int> mpi_layout ({1,1,1,1});
std::vector<int> latt_size ({8,8,8,8});
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
std::vector<int> seeds({1,2,3,4});
GridParallelRNG pRNG(&Grid);
// std::vector<int> seeds({1,2,3,4});
// pRNG.SeedFixedIntegers(seeds);
pRNG.SeedRandomDevice();
LatticeFermion src(&Grid); random(pRNG,src);
LatticeFermion result(&Grid); result=zero;
LatticeFermion ref(&Grid); ref=zero;
LatticeFermion tmp(&Grid); tmp=zero;
LatticeGaugeField Umu(&Grid); random(pRNG,Umu);
std::vector<LatticeColourMatrix> U(4,&Grid);
double volume=1;
for(int mu=0;mu<Nd;mu++){
volume=volume*latt_size[mu];
}
for(int mu=0;mu<Nd;mu++){
U[mu] = peekIndex<LorentzIndex>(Umu,mu);
}
std::vector<int> mask({1,1,1,1,1,1,1,1});
{ // Naive wilson implementation
ref = zero;
for(int mu=0;mu<Nd;mu++){
// ref = src + Gamma(Gamma::GammaX)* src ; // 1-gamma_x
if( mask[mu] ) {
tmp = U[mu]*Cshift(src,mu,1);
for(int i=0;i<ref._odata.size();i++){
ref._odata[i]+= tmp._odata[i] + Gamma(Gmu[mu])*tmp._odata[i]; ;
}
}
if( mask[mu+4] ){
tmp =adj(U[mu])*src;
tmp =Cshift(tmp,mu,-1);
for(int i=0;i<ref._odata.size();i++){
ref._odata[i]+= tmp._odata[i] - Gamma(Gmu[mu])*tmp._odata[i]; ;
}
}
}
}
RealD mass=0.1;
WilsonMatrix Dw(Umu,mass);
std::cout << "Calling Dw"<<std::endl;
int ncall=100;
double t0=usecond();
for(int i=0;i<ncall;i++){
Dw.multiply(src,result);
}
double t1=usecond();
double flops=1320*volume*ncall;
std::cout << "Called Dw"<<std::endl;
std::cout << "norm result "<< norm2(result)<<std::endl;
std::cout << "norm ref "<< norm2(ref)<<std::endl;
std::cout << "mflop/s = "<< flops/(t1-t0)<<std::endl;
// for(int ss=0;ss<10;ss++ ){
for(int ss=0;ss<0;ss++ ){
for(int i=0;i<Ns;i++){
for(int j=0;j<Nc;j++){
ComplexF * ref_p = (ComplexF *)&ref._odata[ss]()(i)(j);
ComplexF * res_p = (ComplexF *)&result._odata[ss]()(i)(j);
std::cout << ss<< " "<<i<<" "<<j<<" "<< (*ref_p)<<" " <<(*res_p)<<std::endl;
}
}
}
ref = ref -result;
std::cout << "norm diff "<< norm2(ref)<<std::endl;
Grid_finalize();
}

5
tests/Makefile.am
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@ -5,7 +5,7 @@ AM_LDFLAGS = -L$(top_srcdir)/lib
#
# Test code
#
bin_PROGRAMS = Grid_main Grid_stencil Grid_nersc_io Grid_cshift Grid_gamma Grid_wilson Grid_simd
bin_PROGRAMS = Grid_main Grid_stencil Grid_nersc_io Grid_cshift Grid_gamma Grid_simd
Grid_main_SOURCES = Grid_main.cc
Grid_main_LDADD = -lGrid
@ -22,8 +22,5 @@ Grid_gamma_LDADD = -lGrid
Grid_stencil_SOURCES = Grid_stencil.cc
Grid_stencil_LDADD = -lGrid
Grid_wilson_SOURCES = Grid_wilson.cc
Grid_wilson_LDADD = -lGrid
Grid_simd_SOURCES = Grid_simd.cc
Grid_simd_LDADD = -lGrid