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Working half precision comms

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paboyle
2017-04-20 11:20:26 +01:00
parent 4a340aa5ca
commit fc4ab9ccd5
13 changed files with 200 additions and 19 deletions
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31
benchmarks/Benchmark_dwf.cc
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@ -152,9 +152,6 @@ int main (int argc, char ** argv)
RealD NP = UGrid->_Nprocessors;
std::cout << GridLogMessage << "Creating action operator " << std::endl;
DomainWallFermionR Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
std::cout << GridLogMessage<< "* Kernel options --dslash-generic, --dslash-unroll, --dslash-asm" <<std::endl;
std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
@ -168,6 +165,7 @@ int main (int argc, char ** argv)
if ( WilsonKernelsStatic::Opt == WilsonKernelsStatic::OptInlineAsm ) std::cout << GridLogMessage<< "* Using Asm Nc=3 WilsonKernels" <<std::endl;
std::cout << GridLogMessage<< "*****************************************************************" <<std::endl;
DomainWallFermionR Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
int ncall =1000;
if (1) {
FGrid->Barrier();
@ -206,6 +204,33 @@ int main (int argc, char ** argv)
Dw.Report();
}
DomainWallFermionRL DwH(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
if (1) {
FGrid->Barrier();
DwH.ZeroCounters();
DwH.Dhop(src,result,0);
double t0=usecond();
for(int i=0;i<ncall;i++){
__SSC_START;
DwH.Dhop(src,result,0);
__SSC_STOP;
}
double t1=usecond();
FGrid->Barrier();
double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
double flops=1344*volume*ncall;
std::cout<<GridLogMessage << "Called half prec comms Dw "<<ncall<<" times in "<<t1-t0<<" us"<<std::endl;
std::cout<<GridLogMessage << "mflop/s = "<< flops/(t1-t0)<<std::endl;
std::cout<<GridLogMessage << "mflop/s per rank = "<< flops/(t1-t0)/NP<<std::endl;
err = ref-result;
std::cout<<GridLogMessage << "norm diff "<< norm2(err)<<std::endl;
assert (norm2(err)< 1.0e-3 );
DwH.Report();
}
if (1)
{