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