MPI_CALL(XBT_PUBLIC int, MPI_Graph_neighbors, (MPI_Comm comm, int rank, int maxneighbors, int* neighbors));
MPI_CALL(XBT_PUBLIC int, MPI_Graph_neighbors_count, (MPI_Comm comm, int rank, int* nneighbors));
MPI_CALL(XBT_PUBLIC int, MPI_Graphdims_get, (MPI_Comm comm, int* nnodes, int* nedges));
MPI_CALL(XBT_PUBLIC int, MPI_Graph_neighbors, (MPI_Comm comm, int rank, int maxneighbors, int* neighbors));
MPI_CALL(XBT_PUBLIC int, MPI_Graph_neighbors_count, (MPI_Comm comm, int rank, int* nneighbors));
MPI_CALL(XBT_PUBLIC int, MPI_Graphdims_get, (MPI_Comm comm, int* nnodes, int* nedges));