1 /* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "smpi_comm.hpp"
9 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(smpi_pmpi);
11 /* PMPI User level calls */
12 extern "C" { // Obviously, the C MPI interface should use the C linkage
14 /* The topo part of MPI_COMM_WORLD should always be nullptr. When other topologies will be implemented, not only should we
15 * check if the topology is nullptr, but we should check if it is the good topology type (so we have to add a
16 * MPIR_Topo_Type field, and replace the MPI_Topology field by an union)*/
18 int PMPI_Cart_create(MPI_Comm comm_old, int ndims, int* dims, int* periodic, int reorder, MPI_Comm* comm_cart) {
19 if (comm_old == MPI_COMM_NULL){
21 } else if (ndims < 0 || (ndims > 0 && (dims == nullptr || periodic == nullptr)) || comm_cart == nullptr) {
24 simgrid::smpi::Topo_Cart* topo = new simgrid::smpi::Topo_Cart(comm_old, ndims, dims, periodic, reorder, comm_cart);
25 if(*comm_cart==MPI_COMM_NULL)
31 int PMPI_Cart_rank(MPI_Comm comm, int* coords, int* rank) {
32 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
33 return MPI_ERR_TOPOLOGY;
35 if (coords == nullptr) {
38 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
42 return topo->rank(coords, rank);
45 int PMPI_Cart_shift(MPI_Comm comm, int direction, int displ, int* source, int* dest) {
46 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
47 return MPI_ERR_TOPOLOGY;
49 if (source == nullptr || dest == nullptr || direction < 0 ) {
52 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
56 return topo->shift(direction, displ, source, dest);
59 int PMPI_Cart_coords(MPI_Comm comm, int rank, int maxdims, int* coords) {
60 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
61 return MPI_ERR_TOPOLOGY;
63 if (rank < 0 || rank >= comm->size()) {
69 if(coords == nullptr) {
72 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
76 return topo->coords(rank, maxdims, coords);
79 int PMPI_Cart_get(MPI_Comm comm, int maxdims, int* dims, int* periods, int* coords) {
80 if(comm == nullptr || comm->topo() == nullptr) {
81 return MPI_ERR_TOPOLOGY;
83 if(maxdims <= 0 || dims == nullptr || periods == nullptr || coords == nullptr) {
86 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
90 return topo->get(maxdims, dims, periods, coords);
93 int PMPI_Cartdim_get(MPI_Comm comm, int* ndims) {
94 if (comm == MPI_COMM_NULL || comm->topo() == nullptr) {
95 return MPI_ERR_TOPOLOGY;
97 if (ndims == nullptr) {
100 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
104 return topo->dim_get(ndims);
107 int PMPI_Dims_create(int nnodes, int ndims, int* dims) {
108 if(dims == nullptr) {
111 if (ndims < 1 || nnodes < 1) {
114 return simgrid::smpi::Topo_Cart::Dims_create(nnodes, ndims, dims);
117 int PMPI_Cart_sub(MPI_Comm comm, int* remain_dims, MPI_Comm* comm_new) {
118 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
119 return MPI_ERR_TOPOLOGY;
121 if (comm_new == nullptr) {
124 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
128 MPIR_Cart_Topology cart = topo->sub(remain_dims, comm_new);
129 if(*comm_new==MPI_COMM_NULL)