Function mpi::ffi::MPI_Graph_create

pub unsafe extern "C" fn MPI_Graph_create(
    comm_old: *mut ompi_communicator_t,
    nnodes: i32,
    index: *const i32,
    edges: *const i32,
    reorder: i32,
    comm_graph: *mut *mut ompi_communicator_t
) -> i32