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Adding metric and the implicit steps

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This commit is contained in:
Guido Cossu
2017-02-21 11:30:57 +00:00
parent 97a6b61551
commit 902afcfbaf
8 changed files with 287 additions and 59 deletions
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32
tests/solver/Test_laplacian.cc
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@ -50,8 +50,11 @@ int main (int argc, char ** argv)
double Kappa = 0.9999;
std::cout << GridLogMessage << "Running with kappa: " << Kappa << std::endl;
typedef SU<Nc>::LatticeAlgebraVector AVector;
// Source and result in the algebra
// needed for the second test
AVector src_vec(&Grid); random(pRNG, src_vec);
AVector result_vec(&Grid); result_vec = zero;
@ -59,16 +62,33 @@ int main (int argc, char ** argv)
SU<Nc>::FundamentalLieAlgebraMatrix(src_vec, src);
LatticeColourMatrix result(&Grid); result=zero;
LaplacianAdjointField<PeriodicGimplR> Laplacian(&Grid, Kappa);
Laplacian.ImportGauge(Umu);
HermitianLinearOperator<LaplacianAdjointField<PeriodicGimplR>,LatticeColourMatrix> HermOp(Laplacian);
ConjugateGradient<LatticeColourMatrix> CG(1.0e-8,10000);
// Generate a field of adjoint matrices
LatticeGaugeField src_f(&Grid);
// A matrix in the adjoint
LatticeColourMatrix src_mu(&Grid);
for (int mu = 0; mu < Nd; mu++) {
SU<Nc>::GaussianFundamentalLieAlgebraMatrix(pRNG, src_mu);
PokeIndex<LorentzIndex>(src_f, src_mu, mu);
}
LatticeGaugeField result_f(&Grid);
// Definition of the Laplacian operator
ConjugateGradient<LatticeGaugeField> CG(1.0e-8,10000);
LaplacianParams LapPar(0.001, 1.0, 1000, 1e-8, 10, 64);
LaplacianAdjointField<PeriodicGimplR> Laplacian(&Grid, CG, LapPar, Kappa);
Laplacian.ImportGauge(Umu);
std::cout << GridLogMessage << "Testing the Laplacian using the full matrix" <<std::endl;
CG(HermOp,src,result); // fastest
Laplacian.Minv(src_f, result_f);
Laplacian.MomentaDistribution(src_f);
// Tests also the version using the algebra decomposition
/*
LaplacianAlgebraField<PeriodicGimplR> LaplacianAlgebra(&Grid, Kappa);
LaplacianAlgebra.ImportGauge(Umu);
@ -82,7 +102,7 @@ int main (int argc, char ** argv)
result2 -= result;
std::cout << GridLogMessage << "Results difference " << norm2(result2) << std::endl;
*/
Grid_finalize();
}