1 /* Copyright (c) 2007-2021. 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 */
13 /* The topo part of MPI_COMM_WORLD should always be nullptr. When other topologies will be implemented, not only should we
14 * check if the topology is nullptr, but we should check if it is the good topology type (so we have to add a
15 * MPIR_Topo_Type field, and replace the MPI_Topology field by an union)*/
17 int PMPI_Cart_create(MPI_Comm comm, int ndims, const int* dims, const int* periodic, int reorder, MPI_Comm* comm_cart) {
20 CHECK_NULL(3, MPI_ERR_ARG, dims)
21 CHECK_NULL(4, MPI_ERR_ARG, periodic)
22 CHECK_NULL(6, MPI_ERR_ARG, comm_cart)
24 CHECK_NEGATIVE(2, MPI_ERR_ARG, ndims)
25 for (int i = 0; i < ndims; i++)
26 CHECK_NEGATIVE(2, MPI_ERR_ARG, dims[i])
27 const auto* topo = new simgrid::smpi::Topo_Cart(comm, ndims, dims, periodic, reorder, comm_cart);
28 if (*comm_cart == MPI_COMM_NULL) {
31 xbt_assert((*comm_cart)->topo().get() == topo);
36 int PMPI_Cart_rank(MPI_Comm comm, const int* coords, int* rank) {
38 CHECK_NULL(1, MPI_ERR_TOPOLOGY, comm->topo())
39 CHECK_NULL(2, MPI_SUCCESS, coords)
40 auto* topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
44 return topo->rank(coords, rank);
47 int PMPI_Cart_shift(MPI_Comm comm, int direction, int displ, int* source, int* dest) {
49 CHECK_NULL(1, MPI_ERR_TOPOLOGY, comm->topo())
50 CHECK_NEGATIVE(3, MPI_ERR_ARG, direction)
51 CHECK_NULL(4, MPI_ERR_ARG, source)
52 CHECK_NULL(5, MPI_ERR_ARG, dest)
53 auto* topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
57 return topo->shift(direction, displ, source, dest);
60 int PMPI_Cart_coords(MPI_Comm comm, int rank, int maxdims, int* coords) {
62 CHECK_NULL(1, MPI_ERR_TOPOLOGY, comm->topo())
63 CHECK_NEGATIVE(3, MPI_ERR_ARG, maxdims)
64 CHECK_RANK(2, rank, comm)
65 if(maxdims==0 || coords == nullptr) {
68 auto* topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
72 return topo->coords(rank, maxdims, coords);
75 int PMPI_Cart_get(MPI_Comm comm, int maxdims, int* dims, int* periods, int* coords) {
76 if(dims == nullptr || periods == nullptr || coords == nullptr){
80 CHECK_NULL(1, MPI_ERR_TOPOLOGY, comm->topo())
81 CHECK_NEGATIVE(3, MPI_ERR_ARG, maxdims)
82 auto* topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
86 return topo->get(maxdims, dims, periods, coords);
89 int PMPI_Cartdim_get(MPI_Comm comm, int* ndims) {
91 CHECK_NULL(1, MPI_ERR_TOPOLOGY, comm->topo())
92 CHECK_NULL(2, MPI_ERR_ARG, ndims)
93 const auto* topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
97 return topo->dim_get(ndims);
100 int PMPI_Dims_create(int nnodes, int ndims, int* dims) {
101 CHECK_NULL(3, MPI_SUCCESS, dims)
102 if (ndims < 1 || nnodes < 1) {
105 return simgrid::smpi::Topo_Cart::Dims_create(nnodes, ndims, dims);
108 int PMPI_Cart_sub(MPI_Comm comm, const int* remain_dims, MPI_Comm* comm_new) {
110 CHECK_NULL(1, MPI_ERR_TOPOLOGY, comm->topo())
111 CHECK_NULL(3, MPI_ERR_ARG, comm_new)
112 auto* topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
116 const auto* cart = topo->sub(remain_dims, comm_new);
117 if(*comm_new==MPI_COMM_NULL)