petsc-3.8.4 2018-03-24

KSPMonitorLGTrueResidualNormCreate

Creates a line graph context for use with KSP to monitor convergence of true residual norms (as opposed to preconditioned residual norms).

Synopsis

#include "petscksp.h"   
PetscErrorCode  KSPMonitorLGTrueResidualNormCreate(MPI_Comm comm,const char host[],const char label[],int x,int y,int m,int n,PetscDrawLG *lgctx)

Collective on KSP

Input Parameters

	comm	- communicator context
	host	- the X display to open, or null for the local machine
	label	- the title to put in the title bar
	x, y	- the screen coordinates of the upper left coordinate of the window
	m, n	- the screen width and height in pixels

Output Parameter

lgctx -the drawing context

Options Database Key

-ksp_monitor_lg_true_residualnorm -Sets true line graph monitor

Notes

Use PetscDrawLGDestroy() to destroy this line graph.

Keywords

KSP, monitor, line graph, residual, create, true