+ static double total_load_init;
+ static double total_load_exit;
+
+ typedef MAP_TEMPLATE<m_host_t, neighbor*> rev_neigh_type;
+ neigh_type neigh; // list of neighbors (do not alter
+ // after construction!)
+ rev_neigh_type rev_neigh; // map m_host_t -> neighbor
+
+ communicator comm; // communicator for this process
+ int ctrl_close_pending; // number of "close" messages to wait
+ // on ctrl channel
+ int data_close_pending; // number of "close" messages to wait
+ // on data channel
+
+ unsigned iter; // counter of iterations
+
+ double prev_load_broadcast; // used to ensure that we do not send
+ // a same information messages
+ double load; // current load
+ double expected_load; // expected load in bookkeeping mode
+
+ // The load balancing algorithm comes here...
+ // Parameter "my_load" is the load to take into account for myself
+ // (may be load or expected load).
+ // Returns the total load sent to neighbors.
+ virtual double load_balance(double my_load);
+
+ // Virtually do some computation
+ void compute();
+
+ // Send procedures, with helpers for bookkeeping mode or not
+ void send1_no_bookkeeping(neighbor& nb);
+ void send1_bookkeeping(neighbor& nb);
+ void send();
+
+ // Receive procedure: wait (or not) for a message to come.
+ // Returns false if some "close" message was received, returns true
+ // otherwise.
+ enum recv_wait_mode { NO_WAIT = 0, WAIT, WAIT_FOR_CLOSE };
+ bool receive(recv_wait_mode wait);
+
+ // Finalize sends a "close" message to each neighbor and wait for
+ // all of them to answer.
+ void finalize1(neighbor& nb);
+ void finalize();
+
+