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[loba.git] / loba_fairstrategy.cpp
index 7495655b2b575c733322f42b698859f41bc7317f..552f060bd0315dedc795b3049ee1abe4c096c05c 100644 (file)
@@ -5,45 +5,26 @@ XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(loba);
 
 #include "loba_fairstrategy.h"
 
-/* simple version:
- *   load balance with a least-loaded neighbor,
- *   without breaking the ping-pong condition
- */
-
-class compare {
-public:
-    bool operator()(const neighbor*a, const neighbor*b) {
-        return a->get_load() > b->get_load();
-    }
-};
-
-double loba_fairstrategy::load_balance(double my_load)
+void loba_fairstrategy::load_balance()
 {
-    std::sort(pneigh.begin(), pneigh.end(), compare());
+    const double delta = 0.001;
 
-    print_loads_p();
+    std::sort(pneigh.begin(), pneigh.end(), pneigh_load_greater());
+
+    print_loads_p(false, xbt_log_priority_debug);
 
-    double sum_sent = 0;
     bool found = true;
 
     while (found) {
         found = false;
         for (unsigned i = 0 ; i < pneigh.size() ; ++i) {
-            double l = pneigh[i]->get_load();
-            if (l >= my_load)
-                continue;
-            if (l < my_load + 2) {
+            if (pneigh[i]->get_load() <= get_load() - 2 * delta) {
                 found = true;
-                pneigh[i]->add_load(1);
-                pneigh[i]->add_to_send(1);
-                INFO1("sent to %s", pneigh[i]->get_name());
-                my_load--;
-                sum_sent++;
+                send(pneigh[i], delta);
+                XBT_DEBUG("sent to %s", pneigh[i]->get_name());
             }
         }
     }
-
-    return sum_sent;
 }
 
 // Local variables: