PetscObjectSetOptionsPrefix

Sets the prefix used for searching for all options for the given object in the database.

Synopsis

#include "petscsys.h"    
PetscErrorCode PetscObjectSetOptionsPrefix(PetscObject obj, const char prefix[])

Collective

Input Parameters

• obj - any PETSc object, for example a Vec, Mat or KSP.

• prefix - the prefix string to prepend to option requests of the object.

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

PetscOptionsCreate(), PetscOptionsDestroy(), PetscObjectAppendOptionsPrefix(), PetscObjectPrependOptionsPrefix(), PetscObjectGetOptionsPrefix(), TSSetOptionsPrefix(), SNESSetOptionsPrefix(), KSPSetOptionsPrefix()

Level

advanced

Location

src/sys/objects/prefix.c

Examples

src/ts/tutorials/ex18.c
src/snes/tutorials/ex69.c
src/dm/impls/plex/tutorials/ex10.c
src/ts/tutorials/ex30.c
src/snes/tutorials/ex13.c
src/ts/tutorials/ex11.c
src/ts/tutorials/ex77.c
src/snes/tutorials/ex36.c
src/snes/tutorials/ex27.c

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