Deadlock fix, and other changes.

[loba.git] / process.h

diff --git a/process.h b/process.h
index ea350038a168e92199ac5bb35ea90952596184a5..4e6ab240f8d73b6f3b15c9fe404568bb82bdc7e2 100644 (file)
--- a/process.h
+++ b/process.h
@@ -1,22 +1,101 @@
 #ifndef PROCESS_H
 #define PROCESS_H
 
 #ifndef PROCESS_H
 #define PROCESS_H
 

+#define USE_UNORDERED_MAP 1
+//#undef USE_UNORDERED_MAP
+

 #include <vector>
 #include <vector>

+#ifdef USE_UNORDERED_MAP
+#  include <tr1/unordered_map>
+#  define MAP_TEMPLATE std::tr1::unordered_map
+#else
+#  include <map>
+#  define MAP_TEMPLATE std::map
+#endif
+#include <msg/msg.h>

 #include <xbt/log.h>
 #include "communicator.h"
 #include "neighbor.h"
 
 class process {
 public:
 #include <xbt/log.h>
 #include "communicator.h"
 #include "neighbor.h"
 
 class process {
 public:

-    process(int argc, char *argv[]);
-    ~process() { };
-    void print_loads(e_xbt_log_priority_t logp = xbt_log_priority_info);
+    static double get_total_load_init()    { return total_load_init;    }
+    static double get_total_load_running() { return total_load_running; }
+    static double get_total_load_exit()    { return total_load_exit;    }
+
+    process(int argc, char* argv[]);
+    virtual ~process();
+

     int run();
 
     int run();
 

+protected:
+    typedef std::vector<neighbor> neigh_type;
+    typedef std::vector<neighbor*> pneigh_type;
+
+    pneigh_type pneigh;         // list of pointers to neighbors that
+                                // we are free to reorder
+
+    // Returns the sum of "to_send" for all neighbors.
+    double sum_of_to_send() const;
+
+    // Calls neighbor::print(verbose, logp, cat) for each member of neigh.
+    void print_loads(bool verbose = false,
+                     e_xbt_log_priority_t logp = xbt_log_priority_info,
+                     xbt_log_category_t cat = _XBT_LOGV(default)) const;
+
+    // Calls neighbor::print(verbose, logp, cat) for each member of pneigh.
+    void print_loads_p(bool verbose = false,
+                       e_xbt_log_priority_t logp = xbt_log_priority_info,
+                       xbt_log_category_t cat = _XBT_LOGV(default)) const;
+

 private:
 private:

-    communicator comm;
-    std::vector<neighbor> neigh;
-    double load;
+    static double total_load_init; // sum of process loads at init
+    static double total_load_running; // summ of loads while running
+    static double total_load_exit; // sum of process loads at 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
+    bool close_received;        // true if we received a "close" message
+    bool may_receive;           // true if there remains neighbors to listen for
+    bool finalizing;            // true when finalize() is running
+
+    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.
+    enum recv_wait_mode { NO_WAIT = 0, WAIT, WAIT_FOR_CLOSE };
+    void 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();

 };
 
 #endif // !PROCESS_H
 };
 
 #endif // !PROCESS_H