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measure M5D bandwidth and fix M5D flop count

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This commit is contained in:
gfilaci 2019-05-02 11:02:39 +01:00
parent 8b6541fb60
commit d3b5c02e2d
1 changed files with 8 additions and 2 deletions
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10
Grid/qcd/action/fermion/CayleyFermion5D.cc
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@ -163,10 +163,16 @@ template<class Impl> void CayleyFermion5D<Impl>::CayleyReport(void)
std::cout << GridLogMessage << "CayleyFermion5D Number of M5D Calls : " << M5Dcalls << std::endl;
std::cout << GridLogMessage << "CayleyFermion5D ComputeTime/Calls : " << M5Dtime / M5Dcalls << " us" << std::endl;
// Flops = 6.0*(Nc*Ns) *Ls*vol
RealD mflops = 6.0*12*volume*M5Dcalls/M5Dtime/2; // 2 for red black counting
// Flops = 10.0*(Nc*Ns) *Ls*vol
RealD mflops = 10.0*(Nc*Ns)*volume*M5Dcalls/M5Dtime/2; // 2 for red black counting
std::cout << GridLogMessage << "Average mflops/s per call : " << mflops << std::endl;
std::cout << GridLogMessage << "Average mflops/s per call per rank : " << mflops/NP << std::endl;
// Bytes = sizeof(RealD) * (Nc*Ns*Nreim) * Ls * vol * (read+write) (/2 for red black counting)
// read = 2 ( psi[ss+s+1] and psi[ss+s-1] count as 1 )
// write = 1
RealD Gbytes = sizeof(RealD) * (Nc*Ns*2) * volume * 3 /2. * 1.e-9;
std::cout << GridLogMessage << "Average bandwidth (GB/s) : " << Gbytes/M5Dtime*M5Dcalls*1.e6 << std::endl;
}
if ( MooeeInvCalls > 0 ) {