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Fixed full routing support for routers, no routing complexity is added routers are...
[simgrid.git] / src / surf / surf_config.c
1 /*      $Id$     */
2
3 /* Copyright (c) 2009 The SimGrid team. All rights reserved.                */
4
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. */
7
8 /* surf_config: configuration infrastructure for the simulation world       */
9
10 #include "xbt/config.h"
11 #include "xbt/str.h"
12 #include "surf/surf_private.h"
13
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
15                                 "About the configuration of surf (and the rest of the simulation)");
16
17 xbt_cfg_t _surf_cfg_set = NULL;
18
19
20 /* Parse the command line, looking for options */
21 static void surf_config_cmd_line(int *argc, char **argv)
22 {
23   int i, j;
24   char *opt;
25
26   for (i = 1; i < *argc; i++) {
27     int remove_it = 0;
28     if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
29       opt = strchr(argv[i], '=');
30       opt++;
31
32       xbt_cfg_set_parse(_surf_cfg_set, opt);
33       DEBUG1("Did apply '%s' as config setting", opt);
34       remove_it = 1;
35     } else if (!strncmp(argv[i], "--cfg-help", strlen("--cfg-help") + 1) ||
36                !strncmp(argv[i], "--help", strlen("--help") + 1)) {
37       printf
38         ("Description of the configuration accepted by this simulator:\n");
39       xbt_cfg_help(_surf_cfg_set);
40       remove_it = 1;
41       exit(0);
42     }
43     if (remove_it) {            /*remove this from argv */
44       for (j = i + 1; j < *argc; j++) {
45         argv[j - 1] = argv[j];
46       }
47
48       argv[j - 1] = NULL;
49       (*argc)--;
50       i--;                      /* compensate effect of next loop incrementation */
51     }
52   }
53 }
54
55
56 int _surf_init_status = 0;      /* 0: beginning of time;
57                                    1: pre-inited (cfg_set created);
58                                    2: inited (running) */
59
60 /* callback of the workstation_model variable */
61 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
62 {
63   char *val;
64
65   xbt_assert0(_surf_init_status < 2,
66               "Cannot change the model after the initialization");
67
68   val = xbt_cfg_get_string(_surf_cfg_set, name);
69   /* New Module missing */
70
71   find_model_description(surf_workstation_model_description, val);
72 }
73
74 /* callback of the cpu_model variable */
75 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
76 {
77   char *val;
78
79   xbt_assert0(_surf_init_status < 2,
80               "Cannot change the model after the initialization");
81
82   val = xbt_cfg_get_string(_surf_cfg_set, name);
83   /* New Module missing */
84   find_model_description(surf_cpu_model_description, val);
85 }
86
87 /* callback of the workstation_model variable */
88 static void _surf_cfg_cb__network_model(const char *name, int pos)
89 {
90   char *val;
91
92   xbt_assert0(_surf_init_status < 2,
93               "Cannot change the model after the initialization");
94
95   val = xbt_cfg_get_string(_surf_cfg_set, name);
96   /* New Module missing */
97   find_model_description(surf_network_model_description, val);
98 }
99
100 /* callback of the tcp gamma variable */
101 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos)
102 {
103   sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
104 }
105
106 static void _surf_cfg_cb__surf_path(const char *name, int pos)
107 {
108   char *path = xbt_cfg_get_string_at(_surf_cfg_set, name, pos);
109   xbt_dynar_push(surf_path, &path);
110 }
111
112 static void _surf_cfg_cb__surf_maxmin_selective_update(const char *name, int pos)
113 {
114         sg_maxmin_selective_update = xbt_cfg_get_int(_surf_cfg_set, name);
115 }
116
117 /* create the config set, register what should be and parse the command line*/
118 void surf_config_init(int *argc, char **argv)
119 {
120
121   /* Create the configuration support */
122   if (_surf_init_status == 0) { /* Only create stuff if not already inited */
123     _surf_init_status = 1;
124
125     char *description = xbt_malloc(1024), *p = description;
126     char *default_value;
127                 int default_value_int;
128     int i;
129
130     sprintf(description, "The model to use for the CPU. Possible values: ");
131     p = description;
132     while (*(++p) != '\0');
133     for (i = 0; surf_cpu_model_description[i].name; i++)
134       p +=
135         sprintf(p, "%s%s", (i == 0 ? "" : ", "),
136                 surf_cpu_model_description[i].name);
137     default_value = xbt_strdup("Cas01");
138     xbt_cfg_register(&_surf_cfg_set,
139                      "cpu_model", description, xbt_cfgelm_string,
140                      &default_value, 1, 1, &_surf_cfg_cb__cpu_model, NULL);
141
142     sprintf(description,
143             "The model to use for the network. Possible values: ");
144     p = description;
145     while (*(++p) != '\0');
146     for (i = 0; surf_network_model_description[i].name; i++)
147       p +=
148         sprintf(p, "%s%s", (i == 0 ? "" : ", "),
149                 surf_network_model_description[i].name);
150     default_value = xbt_strdup("LV08");
151     xbt_cfg_register(&_surf_cfg_set,
152                      "network_model", description, xbt_cfgelm_string,
153                      &default_value, 1, 1, &_surf_cfg_cb__network_model,
154                      NULL);
155
156     sprintf(description,
157             "The model to use for the workstation. Possible values: ");
158     p = description;
159     while (*(++p) != '\0');
160     for (i = 0; surf_workstation_model_description[i].name; i++)
161       p +=
162         sprintf(p, "%s%s", (i == 0 ? "" : ", "),
163                 surf_workstation_model_description[i].name);
164     default_value = xbt_strdup("CLM03");
165     xbt_cfg_register(&_surf_cfg_set,
166                      "workstation_model", description, xbt_cfgelm_string,
167                      &default_value, 1, 1, &_surf_cfg_cb__workstation_model,
168                      NULL);
169
170     xbt_free(description);
171
172     default_value = xbt_strdup("Full");
173     xbt_cfg_register(&_surf_cfg_set, "routing",
174                      "Model to use to store the routing information",
175                      xbt_cfgelm_string, &default_value, 1, 1, NULL,
176                      NULL);
177
178     xbt_cfg_register(&_surf_cfg_set, "TCP_gamma",
179                      "Size of the biggest TCP window", xbt_cfgelm_double,
180                      NULL, 1, 1, _surf_cfg_cb__tcp_gamma, NULL);
181     xbt_cfg_set_double(_surf_cfg_set, "TCP_gamma", 20000.0);
182
183     xbt_cfg_register(&_surf_cfg_set, "path",
184                      "Lookup path for inclusions in platform and deployment XML files",
185                      xbt_cfgelm_string, NULL, 0, 0, _surf_cfg_cb__surf_path,
186                      NULL);
187
188                 default_value_int = 0;
189     xbt_cfg_register(&_surf_cfg_set, "maxmin_selective_update",
190                      "Update the constraint set propagating recursively to others constraints",
191                      xbt_cfgelm_int, &default_value_int, 0, 1, _surf_cfg_cb__surf_maxmin_selective_update, NULL);
192     if (!surf_path) {
193       /* retrieves the current directory of the        current process */
194       const char *initial_path = __surf_get_initial_path();
195       xbt_assert0((initial_path),
196                   "__surf_get_initial_path() failed! Can't resolves current Windows directory");
197
198       surf_path = xbt_dynar_new(sizeof(char *), NULL);
199       xbt_cfg_set_string(_surf_cfg_set, "path", initial_path);
200     }
201
202
203     surf_config_cmd_line(argc, argv);
204   }
205 }
206
207 void surf_config_finalize(void)
208 {
209   if (!_surf_init_status)
210     return;                     /* Not initialized yet. Nothing to do */
211
212   xbt_cfg_free(&_surf_cfg_set);
213   _surf_init_status = 0;
214 }
215
216 void surf_config_models_setup(const char *platform_file)
217 {
218   char *workstation_model_name;
219   int workstation_id = -1;
220
221   surf_timer_model_init(platform_file);
222
223   workstation_model_name =
224     xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
225   char *network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network_model");
226   char *cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu_model");
227
228   if ((strcmp(network_model_name,"LV08") || strcmp(cpu_model_name,"Cas01"))
229       && !strcmp(workstation_model_name, "CLM03")){
230     const char *val = "compound";
231     INFO0("Switching workstation model to compound since you changed the network and/or cpu model(s)");
232     xbt_cfg_set_string(_surf_cfg_set,"workstation_model",val);
233     workstation_model_name = (char*)"compound";
234   }
235
236   DEBUG1("Workstation model: %s", workstation_model_name);
237   workstation_id =
238     find_model_description(surf_workstation_model_description,
239                            workstation_model_name);
240   if (!strcmp(workstation_model_name, "compound")) {
241     int network_id = -1;
242     int cpu_id = -1;
243
244     xbt_assert0(cpu_model_name,
245         "Set a cpu model to use with the 'compound' workstation model");
246
247     xbt_assert0(network_model_name,
248         "Set a network model to use with the 'compound' workstation model");
249
250     network_id =
251       find_model_description(surf_network_model_description,
252                              network_model_name);
253     cpu_id =
254       find_model_description(surf_cpu_model_description, cpu_model_name);
255
256     surf_cpu_model_description[cpu_id].model_init_preparse(platform_file);
257     surf_network_model_description[network_id].
258       model_init_preparse(platform_file);
259   }
260
261   DEBUG0("Call workstation_model_init");
262   surf_workstation_model_description[workstation_id].model_init_preparse
263     (platform_file);
264 }
265
266 void surf_config_models_create_elms(void)
267 {
268   char *workstation_model_name =
269     xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
270   int workstation_id =
271     find_model_description(surf_workstation_model_description,
272                            workstation_model_name);
273   if (surf_workstation_model_description[workstation_id].
274       model_init_postparse != NULL)
275     surf_workstation_model_description[workstation_id].model_init_postparse();
276 }