MPI_Win_post(3)                    Open MPI                    MPI_Win_post(3)



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
       INCLUDE 'mpif.h'
       MPI_WIN_POST(GROUP, ASSERT, WIN, IERROR)
            INTEGER GROUP, ASSERT, WIN, 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






1.4.1                            Jan 14, 2010                  MPI_Win_post(3)
