NAME

       MPI_Win_get_group - Returns a duplicate of the group of the communicator 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++ 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_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.