int MPI_Gather int MPI_Gatherv int MPI_Get_count int MPI_Get_elements int MPI_Get_processor_name int MPI_Get_version int MPI_Graph_create int MPI_Graph_get int MPI_Graph_map int MPI_Graph_neighbors_count int MPI_Graph_neighbors int MPI_Graphdims_Get int MPI_Group_compare int MPI_Group_diffenence int MPI_Group_excl int MPI_Group_free int MPI_Group_incl int MPI_Group_intersection int MPI_Group_range_excl int MPI_Group_range_incl int MPI_Group_rank int MPI_Group_size int MPI_Group_translate_ranks int MPI_Group_union