petsc-3.7.3 2016-07-24
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# PetscObjectsListGetGlobalNumbering

computes a global numbering of PetscObjects living on subcommunicators of a given communicator.

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscObjectsListGetGlobalNumbering(MPI_Comm comm, PetscInt len, PetscObject *objlist, PetscInt *count, PetscInt *numbering)

Collective on comm.

### Input Parameters

| comm | - MPI_Comm
| len | - local length of objlist
| objlist | - a list of PETSc objects living on subcomms of comm and containing this comm rank (subcomm ordering is assumed to be deadlock-free)

### Output Parameters

| count | - global number of distinct subcommunicators on objlist (may be > len)
| numbering | - global numbers of objlist entries (allocated by user)

Level:developer
Location: src/sys/objects/tagm.c
Index of all Sys routines
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