petsc-3.14.6 2021-03-30
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PetscObjectSetOptionsPrefix

 Sets the prefix used for searching for all options of PetscObjectType in the database.

Synopsis

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

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.

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

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

Level

advanced

Location

src/sys/objects/prefix.c

Examples

src/snes/tutorials/ex56.c.html
src/ts/tutorials/ex11.c.html

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