petsc-3.8.4 2018-03-24
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