petsc-3.7.5 2017-01-01

TSMonitorLGCtxCreate

Creates a TSMonitorLGCtx context for use with TS to monitor the solution process graphically in various ways

Synopsis

#include "petscts.h"  
PetscErrorCode  TSMonitorLGCtxCreate(MPI_Comm comm,const char host[],const char label[],int x,int y,int m,int n,PetscInt howoften,TSMonitorLGCtx *ctx)

Collective on TS

Input Parameters

	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
	howoften	- if positive then determines the frequency of the plotting, if -1 then only at the final time

Output Parameter

ctx -the context

Options Database Key

	-ts_monitor_lg_timestep	- automatically sets line graph monitor
	-ts_monitor_lg_solution	- monitor the solution (or certain values of the solution by calling TSMonitorLGSetDisplayVariables() or TSMonitorLGCtxSetDisplayVariables())
	-ts_monitor_lg_error	- monitor the error
	-ts_monitor_lg_ksp_iterations	- monitor the number of KSP iterations needed for each timestep
	-ts_monitor_lg_snes_iterations	- monitor the number of SNES iterations needed for each timestep
	-lg_use_markers <true,false>	- mark the data points (at each time step) on the plot; default is true

Notes

Use TSMonitorLGCtxDestroy() to destroy.

One can provide a function that transforms the solution before plotting it with TSMonitorLGCtxSetTransform() or TSMonitorLGSetTransform()

Many of the functions that control the monitoring have two forms: TSMonitorLGSet/GetXXXX() and TSMonitorLGCtxSet/GetXXXX() the first take a TS object as the first argument (if that TS object does not have a TSMonitorLGCtx associated with it the function call is ignored) and the second takes a TSMonitorLGCtx object as the first argument.

One can control the names displayed for each solution or error variable with TSMonitorLGCtxSetVariableNames() or TSMonitorLGSetVariableNames()

Keywords

TS, monitor, line graph, residual

TSMonitorLGTimeStep(), TSMonitorSet(), TSMonitorLGSolution(), TSMonitorLGError(), TSMonitorDefault(), VecView(),
TSMonitorLGCtxCreate(), TSMonitorLGCtxSetVariableNames(), TSMonitorLGCtxGetVariableNames(), TSMonitorLGSetVariableNames(), TSMonitorLGGetVariableNames(), TSMonitorLGSetDisplayVariables(), TSMonitorLGCtxSetDisplayVariables(), TSMonitorLGCtxSetTransform(), TSMonitorLGSetTransform(), TSMonitorLGError(), TSMonitorLGSNESIterations(), TSMonitorLGKSPIterations(), TSMonitorEnvelopeCtxCreate(), TSMonitorEnvelopeGetBounds(), TSMonitorEnvelopeCtxDestroy(), TSMonitorEnvelop()

Level:intermediate
Location:src/ts/interface/ts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages