3 /* Copyright (c) 2009 The SimGrid team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 /* surf_config: configuration infrastructure for the simulation world */
10 #include "xbt/config.h"
12 #include "surf/surf_private.h"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
15 "About the configuration of surf (and the rest of the simulation)");
17 xbt_cfg_t _surf_cfg_set = NULL;
20 /* Parse the command line, looking for options */
21 static void surf_config_cmd_line(int *argc, char **argv)
26 for (i = 1; i < *argc; i++) {
28 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
29 opt = strchr(argv[i], '=');
32 xbt_cfg_set_parse(_surf_cfg_set, opt);
33 DEBUG1("Did apply '%s' as config setting", opt);
35 } else if (!strncmp(argv[i], "--cfg-help", strlen("--cfg-help") + 1) ||
36 !strncmp(argv[i], "--help", strlen("--help") + 1)) {
38 ("Description of the configuration accepted by this simulator:\n");
39 xbt_cfg_help(_surf_cfg_set);
43 if (remove_it) { /*remove this from argv */
44 for (j = i + 1; j < *argc; j++) {
45 argv[j - 1] = argv[j];
50 i--; /* compensate effect of next loop incrementation */
56 int _surf_init_status = 0; /* 0: beginning of time;
57 1: pre-inited (cfg_set created);
58 2: inited (running) */
60 /* callback of the workstation_model variable */
61 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
65 xbt_assert0(_surf_init_status < 2,
66 "Cannot change the model after the initialization");
68 val = xbt_cfg_get_string(_surf_cfg_set, name);
69 /* New Module missing */
71 find_model_description(surf_workstation_model_description, val);
74 /* callback of the cpu_model variable */
75 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
79 xbt_assert0(_surf_init_status < 2,
80 "Cannot change the model after the initialization");
82 val = xbt_cfg_get_string(_surf_cfg_set, name);
83 /* New Module missing */
84 find_model_description(surf_cpu_model_description, val);
87 /* callback of the workstation_model variable */
88 static void _surf_cfg_cb__network_model(const char *name, int pos)
92 xbt_assert0(_surf_init_status < 2,
93 "Cannot change the model after the initialization");
95 val = xbt_cfg_get_string(_surf_cfg_set, name);
96 /* New Module missing */
97 find_model_description(surf_network_model_description, val);
100 /* callback of the tcp gamma variable */
101 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
103 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
106 static void _surf_cfg_cb__surf_path(const char *name, int pos)
108 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
109 xbt_dynar_push(surf_path, &path);
112 static void _surf_cfg_cb__surf_maxmin_selective_update(const char *name, int pos)
114 sg_maxmin_selective_update = xbt_cfg_get_int(_surf_cfg_set, name);
118 static void _surf_cfg_cb__gtnets_jitter(const char *name, int pos){
119 sg_gtnets_jitter = xbt_cfg_get_double(_surf_cfg_set, name);
121 static void _surf_cfg_cb__gtnets_jitter_seed(const char *name, int pos){
122 sg_gtnets_jitter_seed = xbt_cfg_get_int(_surf_cfg_set, name);
126 /* create the config set, register what should be and parse the command line*/
127 void surf_config_init(int *argc, char **argv)
130 /* Create the configuration support */
131 if (_surf_init_status == 0) { /* Only create stuff if not already inited */
132 _surf_init_status = 1;
134 char *description = xbt_malloc(1024), *p = description;
136 int default_value_int;
139 sprintf(description, "The model to use for the CPU. Possible values: ");
141 while (*(++p) != '\0');
142 for (i = 0; surf_cpu_model_description[i].name; i++)
144 sprintf(p, "%s%s", (i == 0 ? "" : ", "),
145 surf_cpu_model_description[i].name);
146 default_value = xbt_strdup("Cas01");
147 xbt_cfg_register(&_surf_cfg_set,
148 "cpu_model", description, xbt_cfgelm_string,
149 &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
152 "The model to use for the network. Possible values: ");
154 while (*(++p) != '\0');
155 for (i = 0; surf_network_model_description[i].name; i++)
157 sprintf(p, "%s%s", (i == 0 ? "" : ", "),
158 surf_network_model_description[i].name);
159 default_value = xbt_strdup("LV08");
160 xbt_cfg_register(&_surf_cfg_set,
161 "network_model", description, xbt_cfgelm_string,
162 &default_value, 1, 1, &_surf_cfg_cb__network_model,
166 "The model to use for the workstation. Possible values: ");
168 while (*(++p) != '\0');
169 for (i = 0; surf_workstation_model_description[i].name; i++)
171 sprintf(p, "%s%s", (i == 0 ? "" : ", "),
172 surf_workstation_model_description[i].name);
173 default_value = xbt_strdup("CLM03");
174 xbt_cfg_register(&_surf_cfg_set,
175 "workstation_model", description, xbt_cfgelm_string,
176 &default_value, 1, 1, &_surf_cfg_cb__workstation_model,
179 xbt_free(description);
181 default_value = xbt_strdup("Full");
182 xbt_cfg_register(&_surf_cfg_set, "routing",
183 "Model to use to store the routing information",
184 xbt_cfgelm_string, &default_value, 1, 1, NULL,
187 xbt_cfg_register(&_surf_cfg_set, "TCP_gamma",
188 "Size of the biggest TCP window", xbt_cfgelm_double,
189 NULL, 1, 1, _surf_cfg_cb__tcp_gamma, NULL);
190 xbt_cfg_set_double(_surf_cfg_set, "TCP_gamma", 20000.0);
192 xbt_cfg_register(&_surf_cfg_set, "path",
193 "Lookup path for inclusions in platform and deployment XML files",
194 xbt_cfgelm_string, NULL, 0, 0, _surf_cfg_cb__surf_path,
197 default_value_int = 0;
198 xbt_cfg_register(&_surf_cfg_set, "maxmin_selective_update",
199 "Update the constraint set propagating recursively to others constraints",
200 xbt_cfgelm_int, &default_value_int, 0, 1, _surf_cfg_cb__surf_maxmin_selective_update, NULL);
203 xbt_cfg_register(&_surf_cfg_set, "gtnets_jitter",
204 "Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)", xbt_cfgelm_double,
205 NULL, 1, 1, _surf_cfg_cb__gtnets_jitter, NULL);
206 xbt_cfg_set_double(_surf_cfg_set, "gtnets_jitter", 0.0);
208 default_value_int = 10;
209 xbt_cfg_register(&_surf_cfg_set, "gtnets_jitter_seed",
210 "Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
211 xbt_cfgelm_int, &default_value_int, 0, 1, _surf_cfg_cb__gtnets_jitter_seed, NULL);
215 /* retrieves the current directory of the current process */
216 const char *initial_path = __surf_get_initial_path();
217 xbt_assert0((initial_path),
218 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
220 surf_path = xbt_dynar_new(sizeof(char *), NULL);
221 xbt_cfg_set_string(_surf_cfg_set, "path", initial_path);
225 surf_config_cmd_line(argc, argv);
229 void surf_config_finalize(void)
231 if (!_surf_init_status)
232 return; /* Not initialized yet. Nothing to do */
234 xbt_cfg_free(&_surf_cfg_set);
235 _surf_init_status = 0;
238 void surf_config_models_setup(const char *platform_file)
240 char *workstation_model_name;
241 int workstation_id = -1;
243 surf_timer_model_init(platform_file);
245 workstation_model_name =
246 xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
247 char *network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network_model");
248 char *cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu_model");
250 if ((strcmp(network_model_name,"LV08") || strcmp(cpu_model_name,"Cas01"))
251 && !strcmp(workstation_model_name, "CLM03")){
252 const char *val = "compound";
253 INFO0("Switching workstation model to compound since you changed the network and/or cpu model(s)");
254 xbt_cfg_set_string(_surf_cfg_set,"workstation_model",val);
255 workstation_model_name = (char*)"compound";
258 DEBUG1("Workstation model: %s", workstation_model_name);
260 find_model_description(surf_workstation_model_description,
261 workstation_model_name);
262 if (!strcmp(workstation_model_name, "compound")) {
266 xbt_assert0(cpu_model_name,
267 "Set a cpu model to use with the 'compound' workstation model");
269 xbt_assert0(network_model_name,
270 "Set a network model to use with the 'compound' workstation model");
273 find_model_description(surf_network_model_description,
276 find_model_description(surf_cpu_model_description, cpu_model_name);
278 surf_cpu_model_description[cpu_id].model_init_preparse(platform_file);
279 surf_network_model_description[network_id].
280 model_init_preparse(platform_file);
283 DEBUG0("Call workstation_model_init");
284 surf_workstation_model_description[workstation_id].model_init_preparse
288 void surf_config_models_create_elms(void)
290 char *workstation_model_name =
291 xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
293 find_model_description(surf_workstation_model_description,
294 workstation_model_name);
295 if (surf_workstation_model_description[workstation_id].
296 model_init_postparse != NULL)
297 surf_workstation_model_description[workstation_id].model_init_postparse();