petsc-3.11.4 2019-09-28
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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

Examples

src/ksp/ksp/examples/tutorials/ex10.c.html

Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages