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Lanczos test

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This commit is contained in:
Peter Boyle
2015-10-09 00:39:21 +02:00
parent 814c79f38d
commit 44fecd4d8d
1 changed files with 15 additions and 10 deletions
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25
tests/Test_dwf_lanczos.cc
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@@ -35,21 +35,26 @@ int main (int argc, char ** argv)
MdagMLinearOperator<DomainWallFermionR,LatticeFermion> HermOp(Ddwf);
const int Nk = 10;
const int Np = 1;
RealD enorm = 1.0;
RealD vthrs = 1;
const int Nit= 1000;
const int Nk = 30;
const int Np = 10;
const int Nm = Nk+Np;
const int MaxIt= 10000;
RealD resid = 1.0e-8;
ImplicitlyRestartedLanczos<LatticeFermion> IRL(HermOp,PolyX,
Nk,Np,enorm,vthrs,Nit);
std::vector<double> Coeffs(1,1.0);
Polynomial<LatticeFermion> PolyX(Coeffs);
ImplicitlyRestartedLanczos<LatticeFermion> IRL(HermOp,PolyX,Nk,Nm,resid,MaxIt);
std::vector<RealD> eval(Nk);
std::vector<LatticeFermion> evec(Nk,FGrid);
std::vector<RealD> eval(Nm);
std::vector<LatticeFermion> evec(Nm,FGrid);
for(int i=0;i<Nm;i++){
std::cout << i<<" / "<< Nm<< " grid pointer "<<evec[i]._grid<<std::endl;
};
int Nconv;
IRL.calc(eval,evec,
src,
Nsbt,
Nconv);