17.2.446. MPI_Win_get_group

MPI_Win_get_group - Returns a duplicate of the group of the communicator used to create the window.

17.2.446.1. SYNTAX

17.2.446.1.1. C Syntax

#include <mpi.h>

MPI_Win_get_group(MPI_Win win, MPI_Group *group)

17.2.446.1.2. Fortran Syntax

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

17.2.446.1.3. 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

17.2.446.2. INPUT PARAMETER

  • win: Window object (handle).

17.2.446.3. OUTPUT PARAMETERS

  • group: Group of processes that share access to the window (handle).

  • IERROR: Fortran only: Error status (integer).

17.2.446.4. 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.

17.2.446.5. ERRORS

Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.

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.