finally understand how the rate works. update the example and the tesh

[simgrid.git] / examples / simdag / sd_comm_throttling.c

diff --git a/examples/simdag/sd_comm_throttling.c b/examples/simdag/sd_comm_throttling.c
index 4313e01..a2f9f8a 100644 (file)
--- a/examples/simdag/sd_comm_throttling.c
+++ b/examples/simdag/sd_comm_throttling.c
@@ -66,14 +66,17 @@ int main(int argc, char **argv)
     XBT_INFO("Simulation stopped after %.4f seconds", SD_get_clock());
     xbt_dynar_foreach(changed_tasks, ctr, task) {
       XBT_INFO("Task '%s' start time: %f, finish time: %f",
-              SD_task_get_name(task),
-              SD_task_get_start_time(task), 
-              SD_task_get_finish_time(task));
+         SD_task_get_name(task),
+         SD_task_get_start_time(task), 
+         SD_task_get_finish_time(task));
  
     }
     /* let throttle the communication for taskD if its parent is SD_DONE */
+    /* the bandwidth is 1.25e8, the data size is 1e7, and we want to throttle
+     * the bandwidth by a factor 2. the rate is then 1.25e8/(2*1e7)=6.25
+     */
     if (SD_task_get_state(taskC) == SD_DONE)
-      SD_task_set_rate(taskD, 0.5);
+      SD_task_set_rate(taskD, 6.25);
   }
 
   XBT_DEBUG("Destroying tasks...");