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Sizable improvement in multigrid for unsquared.

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6000 matmuls CG unprec
2000 matmuls CG prec (4000 eo muls)
1050 matmuls PGCR on 16^3 x 32 x 8 m=.01

Substantial effort on timing and logging infrastructure
This commit is contained in:
Peter Boyle
2015-07-24 01:31:13 +09:00
parent 11c99d5e66
commit d1afebf71e
67 changed files with 945 additions and 753 deletions
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20
tests/Test_multishift_sqrt.cc
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@ -82,7 +82,7 @@ int main (int argc, char ** argv)
////////////////////////////////////////
// sqrt and inverse sqrt
////////////////////////////////////////
std::cout << "Generating degree "<<degree<<" for x^(1/2)"<<std::endl;
std::cout<<GridLogMessage << "Generating degree "<<degree<<" for x^(1/2)"<<std::endl;
remez.generateApprox(degree,1,2);
MultiShiftFunction Sqrt(remez,1.0e-6,false);
@ -120,19 +120,19 @@ int main (int argc, char ** argv)
error = reference - combined;
std::cout << " Reference "<<norm2(reference)<<std::endl;
std::cout << " combined "<<norm2(combined) <<std::endl;
std::cout << " error "<<norm2(error) <<std::endl;
std::cout<<GridLogMessage << " Reference "<<norm2(reference)<<std::endl;
std::cout<<GridLogMessage << " combined "<<norm2(combined) <<std::endl;
std::cout<<GridLogMessage << " error "<<norm2(error) <<std::endl;
MSCG(Diagonal,src,summed);
error = summed - combined;
std::cout << " summed-combined "<<norm2(error) <<std::endl;
std::cout<<GridLogMessage << " summed-combined "<<norm2(error) <<std::endl;
src=1.0;
Chebyshev<LatticeFermion> Cheby(0.1,40.0,200,InverseApproximation);
std::cout<<"Chebuy approx vector "<<std::endl;
std::cout<<GridLogMessage<<"Chebuy approx vector "<<std::endl;
Cheby(Diagonal,src,combined);
std::ofstream of("cheby");
Cheby.csv(of);
@ -140,10 +140,10 @@ int main (int argc, char ** argv)
Diagonal.ApplyInverse(src,reference);
error = reference - combined;
std::cout << "Chebyshev inverse test "<<std::endl;
std::cout << " Reference "<<norm2(reference)<<std::endl;
std::cout << " combined "<<norm2(combined) <<std::endl;
std::cout << " error "<<norm2(error) <<std::endl;
std::cout<<GridLogMessage << "Chebyshev inverse test "<<std::endl;
std::cout<<GridLogMessage << " Reference "<<norm2(reference)<<std::endl;
std::cout<<GridLogMessage << " combined "<<norm2(combined) <<std::endl;
std::cout<<GridLogMessage << " error "<<norm2(error) <<std::endl;
Grid_finalize();
}