petsc-3.9.4 2018-09-11
PCSetOptionsPrefix
Sets the prefix used for searching for all PC options in the database.
Synopsis
#include "petscksp.h"
PetscErrorCode PCSetOptionsPrefix(PC pc,const char prefix[])
Logically Collective on PC
Input Parameters
| pc | - the preconditioner context
|
| prefix | - the prefix string to prepend to all PC option requests
|
Notes
A hyphen (-) must NOT be given at the beginning of the prefix name.
The first character of all runtime options is AUTOMATICALLY the
hyphen.
Keywords
PC, set, options, prefix, database
See Also
PCAppendOptionsPrefix(), PCGetOptionsPrefix()
Level
advanced
Location
src/ksp/pc/interface/precon.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages