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Allow to set latency_factor, bandwidth_factor and weight_S parameters of the network...
[simgrid.git] / src / surf / surf_config.c
index a9e2ba2..3b28a51 100644 (file)
@@ -1,6 +1,4 @@
-/*     $Id$     */
-
-/* Copyright (c) 2009 The SimGrid team. All rights reserved.                */
+/* Copyright (c) 2009-2010 The SimGrid team. All rights reserved.           */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -57,7 +55,7 @@ int _surf_init_status = 0;      /* 0: beginning of time;
                                    1: pre-inited (cfg_set created);
                                    2: inited (running) */
 
-/* callback of the workstation_model variable */
+/* callback of the workstation/model variable */
 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
 {
   char *val;
@@ -71,7 +69,7 @@ static void _surf_cfg_cb__workstation_model(const char *name, int pos)
   find_model_description(surf_workstation_model_description, val);
 }
 
-/* callback of the cpu_model variable */
+/* callback of the cpu/model variable */
 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
 {
   char *val;
@@ -97,22 +95,39 @@ static void _surf_cfg_cb__network_model(const char *name, int pos)
   find_model_description(surf_network_model_description, val);
 }
 
-/* callback of the tcp gamma variable */
-static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
-{
+
+/* callbacks of the network models values */
+static void _surf_cfg_cb__tcp_gamma(const char *name, int pos) {
   sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
 }
+static void _surf_cfg_cb__latency_factor(const char *name, int pos) {
+  sg_latency_factor = xbt_cfg_get_double(_surf_cfg_set, name);
+}
+static void _surf_cfg_cb__bandwidth_factor(const char *name, int pos) {
+  sg_bandwidth_factor = xbt_cfg_get_double(_surf_cfg_set, name);
+}
+static void _surf_cfg_cb__weight_S(const char *name, int pos) {
+  sg_weight_S_parameter = xbt_cfg_get_double(_surf_cfg_set, name);
+}
+static void _surf_cfg_cb__surf_maxmin_selective_update(const char *name, int pos) {
+       sg_maxmin_selective_update = xbt_cfg_get_int(_surf_cfg_set, name);
+}
 
-static void _surf_cfg_cb__surf_path(const char *name, int pos)
-{
+/* callback of the inclusion path */
+static void _surf_cfg_cb__surf_path(const char *name, int pos) {
   char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
   xbt_dynar_push(surf_path, &path);
 }
 
-static void _surf_cfg_cb__surf_maxmin_selective_update(const char *name, int pos)
-{
-       sg_maxmin_selective_update = xbt_cfg_get_int(_surf_cfg_set, name);
+
+#ifdef HAVE_GTNETS
+static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos){
+       sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
+}
+static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos){
+       sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
 }
+#endif
 
 /* create the config set, register what should be and parse the command line*/
 void surf_config_init(int *argc, char **argv)
@@ -124,7 +139,8 @@ void surf_config_init(int *argc, char **argv)
 
     char *description = xbt_malloc(1024), *p = description;
     char *default_value;
-               int default_value_int;
+    double double_default_value;
+       int default_value_int;
     int i;
 
     sprintf(description, "The model to use for the CPU. Possible values: ");
@@ -136,7 +152,7 @@ void surf_config_init(int *argc, char **argv)
                 surf_cpu_model_description[i].name);
     default_value = xbt_strdup("Cas01");
     xbt_cfg_register(&_surf_cfg_set,
-                     "cpu_model", description, xbt_cfgelm_string,
+                     "cpu/model", description, xbt_cfgelm_string,
                      &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
 
     sprintf(description,
@@ -147,9 +163,9 @@ void surf_config_init(int *argc, char **argv)
       p +=
         sprintf(p, "%s%s", (i == 0 ? "" : ", "),
                 surf_network_model_description[i].name);
-    default_value = xbt_strdup("CM02");
+    default_value = xbt_strdup("LV08");
     xbt_cfg_register(&_surf_cfg_set,
-                     "network_model", description, xbt_cfgelm_string,
+                     "network/model", description, xbt_cfgelm_string,
                      &default_value, 1, 1, &_surf_cfg_cb__network_model,
                      NULL);
 
@@ -163,7 +179,7 @@ void surf_config_init(int *argc, char **argv)
                 surf_workstation_model_description[i].name);
     default_value = xbt_strdup("CLM03");
     xbt_cfg_register(&_surf_cfg_set,
-                     "workstation_model", description, xbt_cfgelm_string,
+                     "workstation/model", description, xbt_cfgelm_string,
                      &default_value, 1, 1, &_surf_cfg_cb__workstation_model,
                      NULL);
 
@@ -172,14 +188,28 @@ void surf_config_init(int *argc, char **argv)
     default_value = xbt_strdup("Full");
     xbt_cfg_register(&_surf_cfg_set, "routing",
                      "Model to use to store the routing information",
-                     xbt_cfgelm_string, &default_value, 1, 1, NULL,
-                     NULL);
+                     xbt_cfgelm_string, &default_value, 1, 1, NULL, NULL);
 
     xbt_cfg_register(&_surf_cfg_set, "TCP_gamma",
-                     "Size of the biggest TCP window", xbt_cfgelm_double,
-                     NULL, 1, 1, _surf_cfg_cb__tcp_gamma, NULL);
+                     "Size of the biggest TCP window (cat /proc/sys/net/ipv4/tcp_[rw]mem for recv/send window; middle value=default value => you probably want default send value)",
+                     xbt_cfgelm_double, NULL, 1, 1, _surf_cfg_cb__tcp_gamma, NULL);
     xbt_cfg_set_double(_surf_cfg_set, "TCP_gamma", 20000.0);
 
+    /* The parameters of network models */
+    double_default_value = 1.0;
+    xbt_cfg_register(&_surf_cfg_set, "network/latency_factor",
+                     "Correction factor to apply to the provided latency (default value set by network model)",
+                     xbt_cfgelm_double, &double_default_value, 1, 1, _surf_cfg_cb__latency_factor, NULL);
+    double_default_value = 1.0;
+    xbt_cfg_register(&_surf_cfg_set, "network/bandwidth_factor",
+                     "Correction factor to apply to the provided bandwidth (default value set by network model)",
+                     xbt_cfgelm_double, &double_default_value, 1, 1, _surf_cfg_cb__bandwidth_factor, NULL);
+    double_default_value = 0.0;
+    xbt_cfg_register(&_surf_cfg_set, "network/weight_S",
+                     "Correction factor to apply to the weight of competing streams(default value set by network model)",
+                     xbt_cfgelm_double, &double_default_value, 1, 1, _surf_cfg_cb__weight_S, NULL);
+
+    /* Inclusion path */
     xbt_cfg_register(&_surf_cfg_set, "path",
                      "Lookup path for inclusions in platform and deployment XML files",
                      xbt_cfgelm_string, NULL, 0, 0, _surf_cfg_cb__surf_path,
@@ -189,6 +219,19 @@ void surf_config_init(int *argc, char **argv)
     xbt_cfg_register(&_surf_cfg_set, "maxmin_selective_update",
                      "Update the constraint set propagating recursively to others constraints",
                      xbt_cfgelm_int, &default_value_int, 0, 1, _surf_cfg_cb__surf_maxmin_selective_update, NULL);
+
+#ifdef HAVE_GTNETS
+    xbt_cfg_register(&_surf_cfg_set, "gtnets_jitter",
+                     "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)", xbt_cfgelm_double,
+                     NULL, 1, 1, _surf_cfg_cb__gtnets_jitter, NULL);
+    xbt_cfg_set_double(_surf_cfg_set, "gtnets_jitter", 0.0);
+
+    default_value_int = 10;
+    xbt_cfg_register(&_surf_cfg_set, "gtnets_jitter_seed",
+                     "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
+                     xbt_cfgelm_int, &default_value_int, 0, 1, _surf_cfg_cb__gtnets_jitter_seed, NULL);
+#endif
+
     if (!surf_path) {
       /* retrieves the current directory of the        current process */
       const char *initial_path = __surf_get_initial_path();
@@ -221,15 +264,15 @@ void surf_config_models_setup(const char *platform_file)
   surf_timer_model_init(platform_file);
 
   workstation_model_name =
-    xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
-  char *network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network_model");
-  char *cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu_model");
+    xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
+  char *network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network/model");
+  char *cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu/model");
 
-  if ((strcmp(network_model_name,"CM02") || strcmp(cpu_model_name,"Cas01"))
+  if ((strcmp(network_model_name,"LV08") || strcmp(cpu_model_name,"Cas01"))
       && !strcmp(workstation_model_name, "CLM03")){
     const char *val = "compound";
     INFO0("Switching workstation model to compound since you changed the network and/or cpu model(s)");
-    xbt_cfg_set_string(_surf_cfg_set,"workstation_model",val);
+    xbt_cfg_set_string(_surf_cfg_set,"workstation/model",val);
     workstation_model_name = (char*)"compound";
   }
 
@@ -266,7 +309,7 @@ void surf_config_models_setup(const char *platform_file)
 void surf_config_models_create_elms(void)
 {
   char *workstation_model_name =
-    xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
+    xbt_cfg_get_string(_surf_cfg_set, "workstation/model");
   int workstation_id =
     find_model_description(surf_workstation_model_description,
                            workstation_model_name);