osx man page for mpi_comm_remote_size

MPI_Comm_remote_size(3OpenMPI)											    MPI_Comm_remote_size(3OpenMPI)

NAME
       MPI_Comm_remote_size  - Determines the size of the remote group associated with an intercommunicator.

SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Comm_remote_size(MPI_Comm comm, int size)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_COMM_REMOTE_SIZE(COMM, SIZE, IERROR)
	    INTEGER   COMM, SIZE, IERROR

C++ Syntax
       #include <mpi.h>
       int Intercomm::Get_remote_size() const

INPUT PARAMETER
       comm	 Communicator (handle).

OUTPUT PARAMETERS
       size	 Number of processes in the remote group of comm (integer).

       IERROR	 Fortran only: Error status (integer).

DESCRIPTION
       MPI_Comm_remote_size determines the size of 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++ 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.

SEE ALSO
       MPI_Comm_test_inter
       MPI_Comm_remote_group
       MPI_Intercomm_create
       MPI_Intercomm_merge

Open MPI 1.2							  September 2006				    MPI_Comm_remote_size(3OpenMPI)