1 /* Copyright (c) 2010-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #ifndef SMPI_COMM_HPP_INCLUDED
8 #define SMPI_COMM_HPP_INCLUDED
13 typedef struct s_smpi_mpi_comm_key_elem {
14 MPI_Comm_copy_attr_function* copy_fn;
15 MPI_Comm_delete_attr_function* delete_fn;
16 } s_smpi_mpi_comm_key_elem_t;
17 typedef struct s_smpi_mpi_comm_key_elem *smpi_comm_key_elem;
22 class Comm : public F2C{
26 MPIR_Topo_type topoType_;
27 MPI_Topology topo_; // to be replaced by an union
29 MPI_Comm leaders_comm_;//inter-node communicator
30 MPI_Comm intra_comm_;//intra-node communicator . For MPI_COMM_WORLD this can't be used, as var is global.
31 //use an intracomm stored in the process data instead
32 int* leaders_map_; //who is the leader of each process
34 int* non_uniform_map_; //set if smp nodes have a different number of processes allocated
35 int is_blocked_;// are ranks allocated on the same smp node contiguous ?
36 xbt_dict_t attributes_;
38 static xbt_dict_t keyvals_;
39 static int keyval_id_;
43 Comm(MPI_Group group, MPI_Topology topo);
46 int dup(MPI_Comm* newcomm);
51 void get_name (char* name, int* len);
52 void set_leaders_comm(MPI_Comm leaders);
53 void set_intra_comm(MPI_Comm leaders);
54 int* get_non_uniform_map();
55 int* get_leaders_map();
56 MPI_Comm get_leaders_comm();
57 MPI_Comm get_intra_comm();
60 MPI_Comm split(int color, int key);
61 void cleanup_attributes();
64 static void unref(MPI_Comm comm);
65 static void destroy(MPI_Comm comm);
67 int attr_delete(int keyval);
68 int attr_get(int keyval, void* attr_value, int* flag);
69 int attr_put(int keyval, void* attr_value);
72 static void free_f(int id);
73 static Comm* f2c(int);
75 static int keyval_create(MPI_Comm_copy_attr_function* copy_fn, MPI_Comm_delete_attr_function* delete_fn, int* keyval, void* extra_state);
76 static int keyval_free(int* keyval);
77 static void keyval_cleanup();