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KrylovSchur and spectral flow updates

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This commit is contained in:
Chulwoo Jung
2026-01-15 03:20:01 +00:00
parent 5c00fe6bef
commit e8e7ef08fc
2 changed files with 87 additions and 11 deletions
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12
examples/Example_krylov_schur.cc
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@@ -126,12 +126,16 @@ public:
assert(0);
};
void Op (const Field &in, Field &out){
Field tmp(in.Grid());
// _Mat.M(in,out);
// RealD mass=-shift;
// WilsonCloverFermionD Dw(Umu, Grid, RBGrid, mass, csw_r, csw_t);
NonHermitianLinearOperator<Matrix,Field> HermOp(_Mat);
BiCGSTAB<Field> CG(_stp,10000);
CG(HermOp,in,out);
// NonHermitianLinearOperator<Matrix,Field> HermOp(_Mat);
// BiCGSTAB<Field> CG(_stp,10000);
_Mat.Mdag(in,tmp);
MdagMLinearOperator<Matrix,Field> HermOp(_Mat);
ConjugateGradient<Field> CG(_stp,10000);
CG(HermOp,tmp,out);
// out = out + shift * in;
}
void AdjOp (const Field &in, Field &out){
@@ -331,7 +335,7 @@ int main (int argc, char ** argv)
// KrySchur(src, maxIter, Nm, Nk, Nstop);
// KrylovSchur KrySchur (HermOp2, UGrid, resid,EvalNormSmall);
// Hacked, really EvalImagSmall
#if 0
#if 1
RealD shift=1.5;
KrylovSchur KrySchur (Dwilson, UGrid, resid,EvalImNormSmall);
KrySchur(src[0], maxIter, Nm, Nk, Nstop,&shift);