petsc-main 2021-04-20
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KSPMonitorSNESResidual

Prints the SNES residual norm, as well as the linear residual norm, at each iteration of an iterative solver.

Synopsis

#include "petsc/private/snesimpl.h"   
PetscErrorCode KSPMonitorSNESResidual(KSP ksp, PetscInt n, PetscReal rnorm, PetscViewerAndFormat *vf)
Collective on ksp

Input Parameters

ksp - iterative context
n - iteration number
rnorm - 2-norm (preconditioned) residual value (may be estimated).
vf - The viewer context

Options Database Key

-snes_monitor_ksp - Activates KSPMonitorSNESResidual()

See Also

KSPMonitorSet(), KSPMonitorResidual(),KSPMonitorTrueResidualMaxNorm()

Level

intermediate

Location

src/snes/interface/snesut.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages