petsc-3.7.3 2016-08-01

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KSPGetResidualNorm

Gets the last (approximate preconditioned) residual norm that has been computed.

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPGetResidualNorm(KSP ksp,PetscReal *rnorm)

Not Collective

Input Parameters

ksp -the iterative context

Output Parameters

rnorm -residual norm

Keywords

KSP, get, residual norm

See Also

KSPBuildResidual()

Level:intermediate
Location:src/ksp/ksp/interface/iterativ.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages