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.. _mpi_file_get_group:
MPI_File_get_group
==================
.. include_body
:ref:`MPI_File_get_group` |mdash| Returns a duplicate of the process group of a
file.
SYNTAX
------
C Syntax
^^^^^^^^
.. code-block:: c
#include <mpi.h>
int MPI_File_get_group(MPI_File fh, MPI_Group *group)
Fortran Syntax
^^^^^^^^^^^^^^
.. code-block:: fortran
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_FILE_GET_GROUP(FH, GROUP, IERROR)
INTEGER FH, GROUP, IERROR
Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^
.. code-block:: fortran
USE mpi_f08
MPI_File_get_group(fh, group, ierror)
TYPE(MPI_File), INTENT(IN) :: fh
TYPE(MPI_Group), INTENT(OUT) :: group
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
INPUT PARAMETER
---------------
* ``fh``: File handle (handle).
OUTPUT PARAMETERS
-----------------
* ``group``: Group that opened the file (handle).
* ``ierror``: Fortran only: Error status (integer).
DESCRIPTION
-----------
:ref:`MPI_File_get_group` returns a duplicate of the group of the communicator
used to open the file associated with *fh.* The group is returned in
*group.* The user is responsible for freeing *group,* using
:ref:`MPI_Group_free`.
ERRORS
------
.. include:: ./ERRORS.rst
|
