petsc-master 2020-10-22
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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.

See Also

PCAppendOptionsPrefix(), PCGetOptionsPrefix()

Level

advanced

Location

src/ksp/pc/interface/precon.c

Examples

src/ts/utils/dmplexlandau/tutorials/ex1.c.html
src/ts/utils/dmplexlandau/tutorials/ex1f90.F90.html

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