petsc-3.12.5 2020-03-29

DMSetOptionsPrefix

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

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode  DMSetOptionsPrefix(DM dm,const char prefix[])

Logically Collective on dm

	da	- the DM context
	prefix	- the prefix to prepend to all option names

A hyphen (-) must NOT be given at the beginning of the prefix name. The first character of all runtime options is AUTOMATICALLY the hyphen.

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