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MPI_File_get_group.3.rst

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MPI_File_get_group

:ref:`MPI_File_get_group` |mdash| Returns a duplicate of the process group of a file.

SYNTAX

C Syntax

#include <mpi.h>

int MPI_File_get_group(MPI_File fh, MPI_Group *group)

Fortran Syntax

USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_FILE_GET_GROUP(FH, GROUP, IERROR)
     INTEGER FH, GROUP, IERROR

Fortran 2008 Syntax

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