KSPQCGGetTrialStepNorm#

Gets the norm of a trial step vector in KSPQCG. The WCG step may be constrained, so this is not necessarily the length of the ultimate step taken in KSPQCG.

Synopsis#

#include "petscksp.h" 
PetscErrorCode KSPQCGGetTrialStepNorm(KSP ksp, PetscReal *tsnorm)

Not Collective

Input Parameter#

  • ksp - the iterative context

Output Parameter#

  • tsnorm - the norm

Level#

advanced

Location#

src/ksp/ksp/impls/qcg/qcg.c

Implementations#

KSPQCGGetTrialStepNorm_QCG in src/ksp/ksp/impls/qcg/qcg.c


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