MPI_Graphdims_get - Retrieves graph topology information
       associated with a communicator


SYNOPSIS

       C:

            #include <mpi.h>

            int MPI_Graphdims_get ( comm, nnodes, nedges )
            MPI_Comm  comm;
            int              *nnodes;
            int              *nedges;

       C++:

            #include <mpi.h>

            void Graphcomm::Get_dims(
            int               nnodes[],
            int               nedges[]) const

       Fortran:

            INCLUDE "mpif.h" (or USE MPI)

            INTEGER comm, nnodes, nedges, ierror

            CALL MPI_GRAPHDIMS_GET(comm, nnodes, nedges, ierror)


STANDARDS

       This release implements the MPI 1.2 standard, as
       documented by the MPI Forum in the spring 1997 release of
       MPI:  A Message Passing Interface Standard.


DESCRIPTION

       The MPI_Graphdims_get routine retrieves graph topology
       information associated with a communicator.  This routine
       accepts the following parameters:

       comm      Specifies the communicator for a group with a
                 graph structure (handle)

       nnodes    Returns the number of nodes in a graph (integer)

       nedges    Returns the number of edges in a graph (integer)

       ierror    Specifies the return code value for successful
                 completion, which is in MPI_SUCCESS.
                 MPI_SUCCESS is defined in the mpif.h file.


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