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.. _mpi_comm_remote_size:
MPI_Comm_remote_size
====================
.. include_body
:ref:`MPI_Comm_remote_size` |mdash| Determines the size of the remote group
associated with an intercommunicator.
SYNTAX
------
C Syntax
^^^^^^^^
.. code-block:: c
#include <mpi.h>
int MPI_Comm_remote_size(MPI_Comm comm, int *size)
Fortran Syntax
^^^^^^^^^^^^^^
.. code-block:: fortran
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_COMM_REMOTE_SIZE(COMM, SIZE, IERROR)
INTEGER COMM, SIZE, IERROR
Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^
.. code-block:: fortran
USE mpi_f08
MPI_Comm_remote_size(comm, size, ierror)
TYPE(MPI_Comm), INTENT(IN) :: comm
INTEGER, INTENT(OUT) :: size
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
INPUT PARAMETER
---------------
* ``comm``: Communicator (handle).
OUTPUT PARAMETERS
-----------------
* ``size``: Number of processes in the remote group of comm (integer).
* ``ierror``: Fortran only: Error status (integer).
DESCRIPTION
-----------
:ref:`MPI_Comm_remote_size` determines the size of the remote group associated
with an intercommunicator.
The intercommunicator accessors (:ref:`MPI_Comm_test_inter`,
:ref:`MPI_Comm_remote_size`, MPI_Comm_remote_group) are all local operations.
ERRORS
------
.. include:: ./ERRORS.rst
.. seealso::
* :ref:`MPI_Comm_test_inter`
* :ref:`MPI_Comm_remote_group`
* :ref:`MPI_Intercomm_create`
* :ref:`MPI_Intercomm_merge`
|
