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