petsc-3.14.6 2021-03-30

PetscObjectGetNewTag

Gets a unique new tag from a PETSc object. All processors that share the object MUST call this routine EXACTLY the same number of times. This tag should only be used with the current objects communicator; do NOT use it with any other MPI communicator.

Synopsis

#include "petscsys.h"   
PetscErrorCode  PetscObjectGetNewTag(PetscObject obj,PetscMPIInt *tag)

Collective on PetscObject

Input Parameter

obj

- the PETSc object; this must be cast with a (PetscObject), for example, PetscObjectGetNewTag((PetscObject)mat,&tag);

Output Parameter

tag

- the new tag

Level

developer

Location