Add extra time for m=3 servers as well as for m=2

run_experiments.py

@@ -43,7 +43,7 @@ def epoch_time_estimate(n, m, t, b):
     # Client time:
     # Takes about 30 sec for handling 2^20 clients
     etime_client = 3 * math.ceil(clients_per_server/50000)
-    if(m==2):
+    if(m==2 or m==3):
         etime_client += 60
 
     etime = etime_base + etime_precompute + etime_route_compute + etime_client