PETSc version 3.15.5
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
See Also
 PetscObjectGetNewTag(), PetscCommDuplicate()
Level
developer
Location
src/sys/objects/tagm.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages