petsc-3.13.6 2020-09-29

TSMonitorSPEigCtxCreate

Creates a context for use with TS to monitor the eigenvalues of the linearized operator

Synopsis

#include "petscts.h"  
PetscErrorCode  TSMonitorSPEigCtxCreate(MPI_Comm comm,const char host[],const char label[],int x,int y,int m,int n,PetscInt howoften,TSMonitorSPEigCtx *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_sp_eig -plot egienvalues of linearized right hand side

Notes

Use TSMonitorSPEigCtxDestroy() to destroy.

Currently only works if the Jacobian is provided explicitly.

Currently only works for ODEs u_t - F(t,u) = 0; that is with no mass matrix.

Level

intermediate

Location

src/ts/interface/tseig.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages