PetscCommGetNewTag

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

Synopsis

int PetscCommGetNewTag(MPI_Comm comm,int *tag)
Collective on comm

Input Parameter

comm -the PETSc communicator

Output Parameter

tag -the new tag

Keywords

comm, get, new, tag

See Also

PetscCommRestoreNewTag(),PetscObjectGetNewTag(),PetscObjectRestoreNewTag()

Level:developer
Location:src/sys/src/objects/tagm.c
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