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.. _mpi_request_get_status:
MPI_Request_get_status
======================
.. include_body
:ref:`MPI_Request_get_status` |mdash| Access information associated with a
request without freeing the request.
SYNTAX
------
C Syntax
^^^^^^^^
.. code-block:: c
#include <mpi.h>
int MPI_Request_get_status(MPI_Request request, int *flag, MPI_Status *status)
Fortran Syntax
^^^^^^^^^^^^^^
.. code-block:: fortran
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_REQUEST_GET_STATUS(REQUEST, FLAG, STATUS, IERROR)
INTEGER REQUEST, STATUS(MPI_STATUS_SIZE), IERROR
LOGICAL FLAG
Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^
.. code-block:: fortran
USE mpi_f08
MPI_Request_get_status(request, flag, status, ierror)
TYPE(MPI_Request), INTENT(IN) :: request
LOGICAL, INTENT(OUT) :: flag
TYPE(MPI_Status) :: status
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
INPUT PARAMETER
---------------
* ``request``: Communication request (handle).
OUTPUT PARAMETERS
-----------------
* ``flag``: Boolean flag, same as from :ref:`MPI_Test` (logical).
* ``status``: ``MPI_Status`` object if flag is true (status).
DESCRIPTION
-----------
:ref:`MPI_Request_get_status` sets ``flag = true`` if the operation is
complete or sets ``flag = false`` if it is not complete. If the
operation is complete, it returns in *status* the request status. It
does not deallocate or deactivate the request; a subsequent call to
test, wait, or free should be executed with that request.
If your application does not need to examine the *status* field, you can
save resources by using the predefined constant ``MPI_STATUS_IGNORE`` as a
special value for the *status* argument.
ERRORS
------
.. include:: ./ERRORS.rst
|
