KSPMonitorResidualDrawLG#
Plots the (possibly preconditioned) residual norm at each iteration of an iterative solver.
Synopsis#
#include "petscksp.h"
PetscErrorCode KSPMonitorResidualDrawLG(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_monitor draw::draw_lg - Activates
KSPMonitorResidualDrawLG()
Notes#
This is not called directly by users, rather one calls KSPMonitorSet(), with this function as an argument, to cause the monitor
to be used during the KSP solve.
Use KSPMonitorResidualDrawLGCreate() to create the context used with this monitor
See Also#
KSP: Linear System Solvers, KSP, PETSCVIEWERDRAW, KSPMonitorSet(), KSPMonitorTrueResidual(), KSPMonitorResidualDraw(), KSPMonitorResidual()
Level#
intermediate
Location#
src/ksp/ksp/interface/iterativ.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages