NAME

       MPI_Win_post - Starts an RMA exposure epoch for the local window associated with win

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_Win_post(MPI_Group group, int assert, MPI_Win win)

Fortran Syntax

       USE MPI
       ! or the older form: INCLUDE 'mpif.h'
       MPI_WIN_POST(GROUP, ASSERT, WIN, IERROR)
            INTEGER GROUP, ASSERT, WIN, IERROR

Fortran 2008 Syntax

       USE mpi_f08
       MPI_Win_post(group, assert, win, ierror)
            TYPE(MPI_Group), INTENT(IN) :: group
            INTEGER, INTENT(IN) :: assert
            TYPE(MPI_Win), INTENT(IN) :: win
            INTEGER, OPTIONAL, INTENT(OUT) :: ierror

C++ Syntax

       #include <mpi.h>
       void MPI::Win::Post(const MPI::Group& group, int assert) const

INPUT PARAMETERS

       group     The group of origin processes (handle)

       assert    Program assertion (integer)

       win       Window object (handle)

OUTPUT PARAMETERS

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       Starts  an RMA exposure epoch for the local window associated with win. Only the processes
       belonging to group should access the window with RMA calls on win during this epoch.  Each
       process in group must issue a matching call to MPI_Win_start. MPI_Win_post does not block.

ERRORS

       Almost all MPI routines return an error value; C routines as the value of the function and
       Fortran routines in the last argument. C++ functions do not return errors. If the  default
       error  handler  is  set  to  MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception
       mechanism will be used to throw an MPI::Exception object.

       Before the error value is returned, the current MPI error handler is called.  By  default,
       this  error  handler aborts the MPI job, except for I/O function errors. The error handler
       may be changed with MPI_Win_set_errhandler; the predefined error handler MPI_ERRORS_RETURN
       may be used to cause error values to be returned. Note that MPI does not guarantee that an
       MPI program can continue past an error.

SEE ALSO

       MPI_Win_start MPI_Win_wait