PCSetOptionsPrefix

 Sets the prefix used for searching for all PC options in the database.

Synopsis

#include "petscksp.h" 
PetscErrorCode PETSCKSP_DLLEXPORT PCSetOptionsPrefix(PC pc,const char prefix[])
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