Various optimizations

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

diff --git a/src/surf/surf_config.c b/src/surf/surf_config.c
index 4473b6f..dd4c08c 100644 (file)
--- a/src/surf/surf_config.c
+++ b/src/surf/surf_config.c
@@ -199,9 +199,14 @@ static void _surf_cfg_cb_context_stack_size(const char *name, int pos)
   smx_context_stack_size = xbt_cfg_get_int(_surf_cfg_set, name) * 1024;
 }
 
-static void _surf_cfg_cb_parallel_contexts(const char *name, int pos)
+static void _surf_cfg_cb_contexts_nthreads(const char *name, int pos)
 {
-  smx_parallel_contexts = 1;
+  SIMIX_context_set_nthreads(xbt_cfg_get_int(_surf_cfg_set, name));
+}
+
+static void _surf_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
+{
+  SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_surf_cfg_set, name));
 }
 
 static void _surf_cfg_cb__surf_network_fullduplex(const char *name,
@@ -358,12 +363,19 @@ void surf_config_init(int *argc, char **argv)
                      xbt_cfgelm_int, &default_value_int, 1, 1,
                      _surf_cfg_cb_context_stack_size, NULL);
 
-    /* parallel contexts */
-    default_value_int = 0;
-    xbt_cfg_register(&_surf_cfg_set, "contexts/parallel",
-                     "Activate the parallel execution of user contexts (EXPERIMENTAL -- pthreads only)",
-                     xbt_cfgelm_int, &default_value_int, 0, 1,
-                     _surf_cfg_cb_parallel_contexts, NULL);
+    /* number of parallel threads for user processes */
+    default_value_int = 1;
+    xbt_cfg_register(&_surf_cfg_set, "contexts/nthreads",
+                     "Number of parallel threads for user contexts (EXPERIMENTAL)",
+                     xbt_cfgelm_int, &default_value_int, 1, 1,
+                     _surf_cfg_cb_contexts_nthreads, NULL);
+
+    /* minimal number of user contexts to be run in parallel */
+    default_value_int = 1;
+    xbt_cfg_register(&_surf_cfg_set, "contexts/parallel_threshold",
+        "Minimal number of user contexts to be run in parallel",
+        xbt_cfgelm_int, &default_value_int, 1, 1,
+        _surf_cfg_cb_contexts_parallel_threshold, NULL);
 
     default_value_int = 0;
     xbt_cfg_register(&_surf_cfg_set, "fullduplex",