MPI_Win_get_group(3) Open MPI MPI_Win_get_group(3)
NAME
MPI_Win_get_group - Returns a duplicate of the group of the communica-
tor used to create the window.
SYNTAX
C Syntax
#include <mpi.h>
MPI_Win_get_group(MPI_Win win, MPI_Group *group)
Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_WIN_GET_GROUP(WIN, GROUP, IERROR)
INTEGER WIN, GROUP, IERROR
Fortran 2008 Syntax
USE mpi_f08
MPI_Win_get_group(win, group, ierror)
TYPE(MPI_Win), INTENT(IN) :: win
TYPE(MPI_Group), INTENT(OUT) :: group
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
C++ Syntax
#include <mpi.h>
MPI::Group MPI::Win::Get_group() const
INPUT PARAMETER
win Window object (handle).
OUTPUT PARAMETERS
group Group of processes that share access to the window (handle).
IERROR Fortran only: Error status (integer).
DESCRIPTION
MPI_Win_get_group returns a duplicate of the group of the communicator
used to create the window associated with win. The group is returned in
group.
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++ func-
tions 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_Comm_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.
4.1.2 Nov 24, 2021 MPI_Win_get_group(3)
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