petsc-3.11.4 2019-09-28
KSPQCGGetTrialStepNorm
Gets the norm of a trial step vector. The WCG step may be constrained, so this is not necessarily the length of the ultimate step taken in QCG.
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
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages