add an "smpi/async_small_thres" configure option to smpi, to allow to toy with the...

[simgrid.git] / src / surf / surf_config.c

diff --git a/src/surf/surf_config.c b/src/surf/surf_config.c
index 24cc5e4..4d286c2 100644 (file)
--- a/src/surf/surf_config.c
+++ b/src/surf/surf_config.c
@@ -610,6 +610,12 @@ void surf_config_init(int *argc, char **argv)
                      xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
                      NULL);
 
+    int default_small_messages_threshold = 0;
+    xbt_cfg_register(&_surf_cfg_set, "smpi/async_small_thres",
+                     "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
+                     xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
+                     NULL);
+
     //For smpi/bw_factor and smpi/lat_factor
     //Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
     //test is if( size >= thresholdN ) return valueN;