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

Input Parameters#

  • pc - the preconditioner context

  • prefix - the prefix string to prepend to all PC option requests

Note#

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#

KSP: Linear System Solvers, PC, PCSetFromOptions, 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