From 4834f187a84f677242809a7413accb2a3009d6f4 Mon Sep 17 00:00:00 2001
From: Arnaud Giersch <arnaud.giersch@iut-bm.univ-fcomte.fr>
Date: Wed, 28 Sep 2011 17:38:52 +0200
Subject: [PATCH] Print useful metrics at exit.

---
 main.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/main.cpp b/main.cpp
index a11ef4a..9ad4b53 100644
--- a/main.cpp
+++ b/main.cpp
@@ -319,6 +319,7 @@ 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);
@@ -336,6 +337,18 @@ int main(int argc, char* argv[])
         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");
+        XBT_INFO("`----");
+
     }
     if (exit_status)
         XBT_ERROR("Simulation failed (%#x).", exit_status);
-- 
2.39.5