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 objects communicator; do NOT use it with any other MPI communicator.

Synopsis#

#include "petscsys.h"   
PetscErrorCode PetscCommGetNewTag(MPI_Comm comm, PetscMPIInt *tag)

Collective

Input Parameter#

  • comm - the MPI communicator

Output Parameter#

  • tag - the new tag

See Also#

PetscObjectGetNewTag(), PetscCommDuplicate()

Level#

developer

Location#

src/sys/objects/tagm.c

Edit on GitLab

Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages