Add statistics about convergence (see parameter -%).

[loba.git] / main.cpp

diff --git a/main.cpp b/main.cpp
index ea84f78d28f4396568d036d7d540ace6fa447374..12f1ae245140db23fa59c415f148edd5e34c7893 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -29,7 +29,7 @@ XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main);
 #include "tracing.h"
 #include "version.h"
 
-#define DATA_DESCR_WIDTH 37
+#define DATA_DESCR_WIDTH 39
 
 namespace {
     // Failure exit status
@@ -52,6 +52,7 @@ namespace {
     statistics loads;
     statistics comps;
     statistics comp_iterations;
+    statistics all_comp_iterations;
     statistics data_send_amount;
     statistics data_recv_amount;
     statistics data_send_count;
@@ -60,6 +61,7 @@ namespace {
     statistics ctrl_recv_amount;
     statistics ctrl_send_count;
     statistics ctrl_recv_count;
+    statistics convergence;
 
 }
 
@@ -80,6 +82,7 @@ static int simulation_main(int argc, char* argv[])
         loads.push(proc->get_real_load());
         comps.push(proc->get_comp_amount());
         comp_iterations.push(proc->get_comp_iter());
+        all_comp_iterations.push(proc->get_all_comp_iter());
         data_send_amount.push(proc->get_data_send_amount());
         data_recv_amount.push(proc->get_data_recv_amount());
         data_send_count.push(proc->get_data_send_count());
@@ -88,6 +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
@@ -172,9 +178,14 @@ 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)................................", \
+             descr " (total/avg./stddev).............................", \
              st.get_sum(), st.get_mean(), st.get_stddev())
 
 int main(int argc, char* argv[])
@@ -312,10 +323,12 @@ 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);
         PR_STATS("Comp. iterations", comp_iterations);
+        PR_STATS("X-Comp. iterations", all_comp_iterations);
         PR_STATS("Data send amount", data_send_amount);
         PR_STATS("Data recv amount", data_recv_amount);
         PR_STATS("Data send count", data_send_count);
@@ -324,16 +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);