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MultiRHS solver improvements with slice operations moved into lattice and sped up.

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Block solver requires a lot of performance work.
This commit is contained in:
paboyle
2017-04-18 10:51:55 +01:00
parent 3141ebac10
commit 8e161152e4
9 changed files with 366 additions and 285 deletions
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30
tests/solver/Test_staggered_block_cg_unprec.cc
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@ -51,7 +51,7 @@ int main (int argc, char ** argv)
typedef typename ImprovedStaggeredFermion5DR::ComplexField ComplexField;
typename ImprovedStaggeredFermion5DR::ImplParams params;
const int Ls=8;
const int Ls=4;
Grid_init(&argc,&argv);
@ -76,24 +76,44 @@ int main (int argc, char ** argv)
RealD mass=0.01;
ImprovedStaggeredFermion5DR Ds(Umu,Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass);
MdagMLinearOperator<ImprovedStaggeredFermion5DR,FermionField> HermOp(Ds);
ConjugateGradient<FermionField> CG(1.0e-8,10000);
BlockConjugateGradient<FermionField> BCG(1.0e-8,10000);
MultiRHSConjugateGradient<FermionField> mCG(1.0e-8,10000);
std::cout << GridLogMessage << " Calling CG "<<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
std::cout << GridLogMessage << " Calling 4d CG "<<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
ImprovedStaggeredFermionR Ds4d(Umu,Umu,*UGrid,*UrbGrid,mass);
MdagMLinearOperator<ImprovedStaggeredFermionR,FermionField> HermOp4d(Ds4d);
FermionField src4d(UGrid); random(pRNG,src4d);
FermionField result4d(UGrid); result4d=zero;
CG(HermOp4d,src4d,result4d);
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
std::cout << GridLogMessage << " Calling 5d CG for "<<Ls <<" right hand sides" <<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
result=zero;
CG(HermOp,src,result);
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
std::cout << GridLogMessage << " Calling multiRHS CG "<<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
std::cout << GridLogMessage << " Calling multiRHS CG for "<<Ls <<" right hand sides" <<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
result=zero;
mCG(HermOp,src,result);
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
std::cout << GridLogMessage << " Calling Block CG "<<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
std::cout << GridLogMessage << " Calling Block CG for "<<Ls <<" right hand sides" <<std::endl;
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
result=zero;
BCG(HermOp,src,result);
std::cout << GridLogMessage << "************************************************************************ "<<std::endl;
Grid_finalize();
}

1
tests/solver/Test_staggered_cg_unprec.cc
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@ -76,7 +76,6 @@ int main (int argc, char ** argv)
ImprovedStaggeredFermionR Ds(Umu,Umu,Grid,RBGrid,mass);
MdagMLinearOperator<ImprovedStaggeredFermionR,FermionField> HermOp(Ds);
ConjugateGradient<FermionField> CG(1.0e-8,10000);
CG(HermOp,src,result);
Grid_finalize();