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.. _mpi_win_flush:
MPI_Win_flush
=============
.. include_body
:ref:`MPI_Win_flush`, :ref:`MPI_Win_flush_all` - Complete all outstanding RMA
operations at both the origin and the target
SYNTAX
------
C Syntax
^^^^^^^^
.. code-block:: c
#include <mpi.h>
int MPI_Win_flush (int rank, MPI_Win win)
int MPI_Win_flush_all (MPI_Win win)
Fortran Syntax
^^^^^^^^^^^^^^
.. code-block:: fortran
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_WIN_FLUSH(RANK, WIN, IERROR)
INTEGER RANK, WIN, IERROR
MPI_WIN_FLUSH_ALL(WIN, IERROR)
INTEGER WIN, IERROR
Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^
.. code-block:: fortran
USE mpi_f08
MPI_Win_flush(rank, win, ierror)
INTEGER, INTENT(IN) :: rank
TYPE(MPI_Win), INTENT(IN) :: win
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
MPI_Win_flush_all(win, ierror)
TYPE(MPI_Win), INTENT(IN) :: win
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
INPUT PARAMETERS
----------------
* ``rank``: Rank of window (nonnegative integer).
* ``win``: Window object (handle).
OUTPUT PARAMETER
----------------
* ``ierror``: Fortran only: Error status (integer).
DESCRIPTION
-----------
:ref:`MPI_Win_flush` completes all outstanding RMA operations initiated by
the calling process to the target rank on the specified window. The
operations are completed both at the origin and at the target.
:ref:`MPI_Win_flush_all` completes all outstanding RMA operations to all
targets.
Can only be called from within a passive target epoch.
ERRORS
------
.. include:: ./ERRORS.rst
.. seealso::
* :ref:`MPI_Win_flush_local`
* :ref:`MPI_Win_lock`
* :ref:`MPI_Win_lock_all`
|
