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#

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
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Index of all manual pages