petsc-dev 2014-07-23
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PetscOptionsSetFromOptions

Sets various SNES and KSP parameters from user options.

Synopsis

#include "petscsys.h"   
PetscErrorCode  PetscOptionsSetFromOptions(void)
Collective on PETSC_COMM_WORLD

Options Database Keys

Notes

To see all options, run your program with the -help option or consult Users-Manual: Introduction

Keywords

set, options, database

Level:intermediate
Location:
src/sys/objects/options.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/snes/examples/tutorials/ex22.c.html
-options_monitor <optional filename> - prints the names and values of all runtime options as they are set. The monitor functionality is not available for options set through a file, environment variable, or on the command line. Only options set after PetscInitialize completes will be monitored.
-options_monitor_cancel - cancel all options database monitors