NAME

       MPI_Comm_remote_group  - Accesses the remote group associated with an intercommunicator.

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_Comm_remote_group(MPI_Comm comm, MPI_Group *group)

Fortran Syntax

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

Fortran 2008 Syntax

       USE mpi_f08
       MPI_Comm_remote_group(comm, group, ierror)
            TYPE(MPI_Comm), INTENT(IN) :: comm
            TYPE(MPI_Group), INTENT(OUT) :: group
            INTEGER, OPTIONAL, INTENT(OUT) :: ierror

C++ Syntax

       #include <mpi.h>
       Group Intercomm::Get_remote_group() const

INPUT PARAMETER

       comm      Communicator.

OUTPUT PARAMETERS

       group     Remote group of communicator.

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       MPI_Comm_remote_group accesses the remote group associated with an intercommunicator.

       The     intercommunicator     accessors     (MPI_Comm_test_inter,    MPI_Comm_remote_size,
       MPI_Comm_remote_group) are all local operations.

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.

SEE ALSO

       MPI_Comm_test_inter
       MPI_Comm_remote_size
       MPI_Intercomm_create
       MPI_Intercomm_merge