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Some small steps towards a multigrid

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This commit is contained in:
Peter Boyle
2015-06-22 12:49:44 +01:00
parent 95538bb8c6
commit 5f8f0bc792
12 changed files with 243 additions and 278 deletions
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2
lib/algorithms/iterative/ConjugateGradient.h
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@@ -15,7 +15,7 @@ public:
Integer MaxIterations;
int verbose;
ConjugateGradient(RealD tol,Integer maxit) : Tolerance(tol), MaxIterations(maxit) {
verbose=0;
verbose=1;
};

6
lib/algorithms/iterative/PrecGeneralisedConjugateResidual.h
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@@ -48,11 +48,11 @@ namespace Grid {
if(cp<rsq) {
Linop.HermOp(psi,r);
axpy(r,-1.0,src,r);
RealD true_resid = norm2(r);
RealD tr = norm2(r);
std::cout<<"PrecGeneralisedConjugateResidual: Converged on iteration " <<steps
<< " computed residual "<<sqrt(cp/ssq)
<< " true residual "<<true_resid
<< " target " <<Tolerance <<std::endl;
<< " true residual " <<sqrt(tr/ssq)
<< " target " <<Tolerance <<std::endl;
return;
}