Add statistics about convergence (see parameter -%).

[loba.git] / main.cpp

diff --git a/main.cpp b/main.cpp
index 6417250d128315df81fa935b377f40037ee0a1c1..12f1ae245140db23fa59c415f148edd5e34c7893 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -61,6 +61,7 @@ namespace {
     statistics ctrl_recv_amount;
     statistics ctrl_send_count;
     statistics ctrl_recv_count;
+    statistics convergence;
 
 }
 
@@ -90,6 +91,9 @@ static int simulation_main(int argc, char* argv[])
         ctrl_recv_amount.push(proc->get_ctrl_recv_amount());
         ctrl_send_count.push(proc->get_ctrl_send_count());
         ctrl_recv_count.push(proc->get_ctrl_recv_count());
+        double c = proc->get_convergence();
+        if (c != -1)
+            convergence.push(c);
 
         // Synchronization barrier...
         // The goal is to circumvent a limitation in SimGrid (at least
@@ -174,6 +178,11 @@ static void install_signal_handler()
     }
 }
 
+#define PR_VALUE(descr, format, ...)                                    \
+    XBT_INFO("| %.*s: " format, DATA_DESCR_WIDTH,                       \
+             descr ".................................................", \
+             __VA_ARGS__)
+
 #define PR_STATS(descr, st)                                             \
     XBT_INFO("| %.*s: %g / %g / %g", DATA_DESCR_WIDTH,                  \
              descr " (total/avg./stddev).............................", \
@@ -314,6 +323,7 @@ int main(int argc, char* argv[])
         elapsed_time.stop();
         if (!check_for_lost_load())
             exit_status |= EXIT_FAILURE_LOAD;
+
         XBT_INFO(",----[ Results ]");
         PR_STATS("Load", loads);
         PR_STATS("Computation", comps);
@@ -327,16 +337,26 @@ int main(int argc, char* argv[])
         PR_STATS("Ctrl recv amount", ctrl_recv_amount);
         PR_STATS("Ctrl send count", ctrl_send_count);
         PR_STATS("Ctrl recv count", ctrl_recv_count);
-        XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH,
-                 "Total simulated time..................................",
-                 simulated_time);
-        XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH,
-                 "Total simulation time.................................",
-                 simulation_time.duration());
-        XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH,
-                 "Elapsed (wall clock) time.............................",
-                 elapsed_time.duration());
+        PR_VALUE("Total simulated time", "%g", simulated_time);
+        PR_VALUE("Total simulation time", "%g", simulation_time.duration());
+        PR_VALUE("Elapsed (wall clock) time", "%g", elapsed_time.duration());
         XBT_INFO("`----");
+
+        double load_imbalance = 100.0 * loads.get_stddev() / loads.get_mean();
+        double transfer_amount =
+            data_send_amount.get_sum() / opt::comm_cost(loads.get_sum());
+
+        XBT_INFO(",----[ Useful metrics ]");
+        PR_VALUE("Final load imbalance", "%g %s", load_imbalance,
+                 "percent of the load average");
+        PR_VALUE("Data transfer amount", "%g %s", transfer_amount,
+                 "times the total amount of data");
+        PR_VALUE("Number of hosts that converged", "%u / %u",
+                 convergence.get_count(), loads.get_count());
+        PR_VALUE("Date of first host convergence", "%g", convergence.get_min());
+        PR_VALUE("Date of last host convergence", "%g", convergence.get_max());
+        XBT_INFO("`----");
+
     }
     if (exit_status)
         XBT_ERROR("Simulation failed (%#x).", exit_status);