petsc-3.10.2 2018-10-09
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KSPLSQRMonitorDefault

Print the residual norm at each iteration of the LSQR method, norm of the residual of the normal equations A'*A x = A' b, and estimate of matrix norm ||A||.

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPLSQRMonitorDefault(KSP ksp,PetscInt n,PetscReal rnorm,PetscViewerAndFormat *dummy)
Collective on KSP

Input Parameters

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

Keywords

KSP, KSPLSQR, default, monitor, residual

See Also

KSPLSQR, KSPMonitorSet(), KSPMonitorTrueResidualNorm(), KSPMonitorLGResidualNormCreate(), KSPMonitorDefault()

Level

intermediate

Location

src/ksp/ksp/impls/lsqr/lsqr.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages