--- /dev/null
+/* Copyright (c) 2010-2015. The SimGrid Team.
+ * All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#ifndef SMPI_COMM_HPP_INCLUDED
+#define SMPI_COMM_HPP_INCLUDED
+
+#include "private.h"
+
+namespace simgrid{
+namespace SMPI{
+
+class Comm {
+
+ private:
+ MPI_Group m_group;
+ MPIR_Topo_type m_topoType;
+ MPI_Topology m_topo; // to be replaced by an union
+ int m_refcount;
+ MPI_Comm m_leaders_comm;//inter-node communicator
+ MPI_Comm m_intra_comm;//intra-node communicator . For MPI_COMM_WORLD this can't be used, as var is global.
+ //use an intracomm stored in the process data instead
+ int* m_leaders_map; //who is the leader of each process
+ int m_is_uniform;
+ int* m_non_uniform_map; //set if smp nodes have a different number of processes allocated
+ int m_is_blocked;// are ranks allocated on the same smp node contiguous ?
+ xbt_dict_t m_attributes;
+
+ public:
+
+ Comm(MPI_Group group, MPI_Topology topo);
+
+ void destroy();
+ int dup(MPI_Comm* newcomm);
+ MPI_Group group();
+ MPI_Topology topo();
+ int size();
+ int rank();
+ void get_name (char* name, int* len);
+ void set_leaders_comm(MPI_Comm leaders);
+ void set_intra_comm(MPI_Comm leaders);
+ int* get_non_uniform_map();
+ int* get_leaders_map();
+ MPI_Comm get_leaders_comm();
+ MPI_Comm get_intra_comm();
+ int is_uniform();
+ int is_blocked();
+ MPI_Comm split(int color, int key);
+ void use();
+ void cleanup_attributes();
+ void cleanup_smp();
+ void unuse();
+ void init_smp();
+ int attr_delete(int keyval);
+ int attr_get(int keyval, void* attr_value, int* flag);
+ int attr_put(int keyval, void* attr_value);
+
+};
+
+}
+}
+
+
+#endif
