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
See Also#
KSP: Linear System Solvers, KSPQCG, KSPQCGSetTrustRegionRadius()
Level#
advanced
Location#
Implementations#
KSPQCGGetTrialStepNorm_QCG() in src/ksp/ksp/impls/qcg/qcg.c
Index of all KSP routines
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Index of all manual pages