Process Topologies

MPI_Cart_create
MPI_Dims_create
MPI_Graph_create
MPI_Topo_test
MPI_Graphdims_get
MPI_Graph_get
MPI_Cartdim_get
MPI_Cart_get
MPI_Cart_rank
MPI_Cart_coords
MPI_Graph_neighbors
MPI_Graph_neighbors_count 
MPI_Cart_shift
MPI_Cart_sub
MPI_Cart_map
MPI_Graph_map