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MPI3 working with a bounce through shared memory on my laptop.

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Longer term plan: make the "u_comm_buf" in Stencil point to the shared region and avoid the
send between ranks on same node.
This commit is contained in:
paboyle
2016-10-21 09:03:26 +01:00
parent 5b5925b8e5
commit a762b1fb71
8 changed files with 208 additions and 116 deletions
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7
benchmarks/Benchmark_dwf.cc
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@ -208,7 +208,6 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage<< "res norms "<< norm2(result)<<" " <<norm2(sresult)<<std::endl;
RealF sum=0;
for(int x=0;x<latt4[0];x++){
for(int y=0;y<latt4[1];y++){
@ -221,9 +220,9 @@ int main (int argc, char ** argv)
peekSite(simd,sresult,site);
sum=sum+norm2(normal-simd);
if (norm2(normal-simd) > 1.0e-6 ) {
std::cout << "site "<<x<<","<<y<<","<<z<<","<<t<<","<<s<<" "<<norm2(normal-simd)<<std::endl;
std::cout << "site "<<x<<","<<y<<","<<z<<","<<t<<","<<s<<" normal "<<normal<<std::endl;
std::cout << "site "<<x<<","<<y<<","<<z<<","<<t<<","<<s<<" simd "<<simd<<std::endl;
std::cout << "site "<<x<<","<<y<<","<<z<<","<<t<<","<<s<<" "<<norm2(normal-simd)<<std::endl;
std::cout << "site "<<x<<","<<y<<","<<z<<","<<t<<","<<s<<" normal "<<normal<<std::endl;
std::cout << "site "<<x<<","<<y<<","<<z<<","<<t<<","<<s<<" simd "<<simd<<std::endl;
}
}}}}}
std::cout<<GridLogMessage<<" difference between normal and simd is "<<sum<<std::endl;