petsc-3.11.4 2019-09-28

PetscOptionsInsert

Inserts into the options database from the command line, the environmental variable and a file.

Synopsis

#include "petscsys.h"   
PetscErrorCode PetscOptionsInsert(PetscOptions options,int *argc,char ***args,const char file[])

Input Parameters

	options	- options database or NULL for the default global database
	argc	- count of number of command line arguments
	args	- the command line arguments
	file	- optional filename, defaults to ~username/.petscrc

Note

Since PetscOptionsInsert() is automatically called by PetscInitialize(), the user does not typically need to call this routine. PetscOptionsInsert() can be called several times, adding additional entries into the database.

Options Database Keys

Level

advanced

Location

src/sys/objects/options.c

Examples

src/sys/examples/tutorials/ex19.c.html
src/snes/examples/tutorials/ex22.c.html
src/snes/examples/tutorials/ex30.c.html

Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages

	-options_monitor <optional filename>	- print options names and values as they are set
	-options_file <filename>	- read options from a file