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Improved formating of timing output in mixed-prec multishift

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In test of mixed-prec multishift, added comparison against full double precision multishift both for timing and to cross-check the results
This commit is contained in:
Christopher Kelly
2021-01-20 15:42:06 -05:00
parent 7a06826cf1
commit d161c2dc35
2 changed files with 21 additions and 6 deletions
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16
tests/solver/Test_dwf_multishift_mixedprec.cc
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@@ -127,7 +127,21 @@ void run_test(int argc, char ** argv, const typename SpeciesD::ImplParams &param
mcg(HermOpEO_d, src_o_d, results_o_d);
double t2=usecond();
std::cout<<GridLogMessage << "Test: Total usec = "<< (t2-t1)<<std::endl;
//Crosscheck double and mixed prec results
ConjugateGradientMultiShift<FermionFieldD> dmcg(10000, shifts);
std::vector<FermionFieldD> results_o_d_2(order, FrbGrid_d);
dmcg(HermOpEO_d, src_o_d, results_o_d_2);
double t3=usecond();
std::cout << GridLogMessage << "Comparison of mixed prec results to double prec results |mixed - double|^2 :" << std::endl;
FermionFieldD tmp(FrbGrid_d);
for(int i=0;i<order;i++){
RealD ndiff = axpy_norm(tmp, -1., results_o_d[i], results_o_d_2[i]);
std::cout << i << " " << ndiff << std::endl;
}
std::cout<<GridLogMessage << "Mixed precision algorithm: Total usec = "<< (t2-t1)<<std::endl;
std::cout<<GridLogMessage << "Double precision algorithm: Total usec = "<< (t3-t2)<<std::endl;
}