KSPLSQRMonitorResidualDrawLG#

Plots the true residual norm at each iteration of an iterative solver.

Synopsis#

#include "petscksp.h" 
PetscErrorCode KSPLSQRMonitorResidualDrawLG(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#

  • -ksp_lsqr_monitor draw::draw_lg - Activates KSPMonitorTrueResidualDrawLG()

See Also#

KSPMonitorSet(), KSPMonitorTrueResidual()

Level#

intermediate

Location#

src/ksp/ksp/impls/lsqr/lsqr.c

Implementations#

KSPLSQRMonitorResidualDrawLG_LSQR in src/ksp/ksp/impls/lsqr/lsqr.c


Edit on GitLab

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