KSPLSQRMonitorResidual#
Prints the residual norm, as well as the normal equation residual norm, at each iteration of an iterative solver for the KSPLSQR solver
Synopsis#
#include "petscksp.h"
PetscErrorCode KSPLSQRMonitorResidual(KSP ksp, PetscInt n, PetscReal rnorm, PetscViewerAndFormat *vf)
Collective
Input Parameters#
ksp - iterative context
n - iteration number
rnorm - 2-norm (preconditioned) residual value (may be estimated).
vf - The viewer context
Options Database Key#
-ksp_lsqr_monitor - Activates
KSPLSQRMonitorResidual()
See Also#
KSP: Linear System Solvers, KSPLSQR, KSPMonitorSet(), KSPMonitorResidual(), KSPMonitorTrueResidualMaxNorm(), KSPLSQRMonitorResidualDrawLG()
Level#
intermediate
Location#
Implementations#
KSPLSQRMonitorResidual_LSQR() in src/ksp/ksp/impls/lsqr/lsqr.c
Index of all KSP routines
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Index of all manual pages