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 c362e75..a2f9f8a 100644 (file)
--- a/examples/simdag/sd_comm_throttling.c
+++ b/examples/simdag/sd_comm_throttling.c
@@ -72,8 +72,11 @@ int main(int argc, char **argv)
  
     }
     /* 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, 50);
+      SD_task_set_rate(taskD, 6.25);
   }
 
   XBT_DEBUG("Destroying tasks...");