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.

Input Parameters

• comm - the 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)

Note

This is needed when PETSc is used with certain languages that do garbage collection to manage object life cycles.

See Also

PetscCommDuplicate(), PetscObjectDestroy()

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