3 /* Copyright (c) 2004 Arnaud Legrand. 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. */
10 #include "surf_private.h"
11 #include "xbt/module.h"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
14 "Logging specific to SURF (kernel)");
16 int use_sdp_solver = 0;
17 int use_lagrange_solver = 0;
19 /* Additional declarations for Windows potability. */
27 static const char *disk_drives_letter_table[MAX_DRIVE] = {
55 #endif /* #ifdef _WIN32 */
58 * Returns the initial path. On Windows the initial path is
59 * the current directory for the current process in the other
60 * case the function returns "./" that represents the current
61 * directory on Unix/Linux platforms.
64 const char *__surf_get_initial_path(void)
69 char current_directory[MAX_PATH + 1] = { 0 };
70 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
76 strncpy(root, current_directory, 3);
78 for (i = 0; i < MAX_DRIVE; i++) {
79 if (toupper(root[0]) == disk_drives_letter_table[i][0])
80 return disk_drives_letter_table[i];
89 /* The __surf_is_absolute_file_path() returns 1 if
90 * file_path is a absolute file path, in the other
91 * case the function returns 0.
93 int __surf_is_absolute_file_path(const char *file_path)
96 WIN32_FIND_DATA wfd = { 0 };
97 HANDLE hFile = FindFirstFile(file_path, &wfd);
99 if (INVALID_HANDLE_VALUE == hFile)
105 return (file_path[0] == '/');
109 static double NOW = 0;
111 xbt_dynar_t model_list = NULL;
112 tmgr_history_t history = NULL;
113 lmm_system_t maxmin_system = NULL;
114 xbt_dynar_t surf_path = NULL;
115 const char *surf_action_state_names[6] = {
117 "SURF_ACTION_RUNNING",
118 "SURF_ACTION_FAILED",
120 "SURF_ACTION_TO_FREE",
121 "SURF_ACTION_NOT_IN_THE_SYSTEM"
124 /* Don't forget to update the option description in smx_config when you change this */
125 s_surf_model_description_t surf_network_model_description[] = {
126 {"Constant", NULL, surf_network_model_init_Constant},
127 {"CM02", NULL, surf_network_model_init_CM02},
128 {"LegrandVelho", NULL, surf_network_model_init_LegrandVelho},
130 {"GTNets", NULL, surf_network_model_init_GTNETS},
133 {"SDP", NULL, surf_network_model_init_SDP},
135 {"Reno", NULL, surf_network_model_init_Reno},
136 {"Reno2", NULL, surf_network_model_init_Reno2},
137 {"Vegas", NULL, surf_network_model_init_Vegas},
138 {NULL, NULL, NULL} /* this array must be NULL terminated */
141 s_surf_model_description_t surf_cpu_model_description[] = {
142 {"Cas01", NULL, surf_cpu_model_init_Cas01},
143 {NULL, NULL, NULL} /* this array must be NULL terminated */
146 s_surf_model_description_t surf_workstation_model_description[] = {
147 {"CLM03", NULL, surf_workstation_model_init_CLM03, create_workstations},
148 {"compound", NULL, surf_workstation_model_init_compound,
149 create_workstations},
150 {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07, NULL},
151 {NULL, NULL, NULL} /* this array must be NULL terminated */
154 void update_model_description(s_surf_model_description_t * table,
155 const char *name, surf_model_t model)
157 int i = find_model_description(table, name);
158 table[i].model = model;
161 int find_model_description(s_surf_model_description_t * table,
165 char *name_list = NULL;
167 for (i = 0; table[i].name; i++)
168 if (!strcmp(name, table[i].name)) {
171 name_list = strdup(table[0].name);
172 for (i = 1; table[i].name; i++) {
174 xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 2);
175 strcat(name_list, ", ");
176 strcat(name_list, table[i].name);
178 xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
182 double generic_maxmin_share_resources(xbt_swag_t running_actions,
185 void (*solve) (lmm_system_t))
187 surf_action_t action = NULL;
190 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
192 xbt_assert0(solve, "Give me a real solver function!");
195 xbt_swag_foreach(action, running_actions) {
196 value = lmm_variable_getvalue(VARIABLE(action));
197 if ((value > 0) || (action->max_duration >= 0))
205 if (action->remains > 0)
206 min = action->remains / value;
209 if ((action->max_duration >= 0) && (action->max_duration < min))
210 min = action->max_duration;
212 min = action->max_duration;
215 for (action = xbt_swag_getNext(action, running_actions->offset);
216 action; action = xbt_swag_getNext(action, running_actions->offset)) {
217 value = lmm_variable_getvalue(VARIABLE(action));
219 if (action->remains > 0)
220 value = action->remains / value;
225 DEBUG2("Updating min (value) with %p: %f", action, min);
228 if ((action->max_duration >= 0) && (action->max_duration < min)) {
229 min = action->max_duration;
230 DEBUG2("Updating min (duration) with %p: %f", action, min);
233 DEBUG1("min value : %f", min);
239 e_surf_action_state_t surf_action_get_state(surf_action_t action)
241 surf_action_state_t action_state = &(action->model_type->states);
243 if (action->state_set == action_state->ready_action_set)
244 return SURF_ACTION_READY;
245 if (action->state_set == action_state->running_action_set)
246 return SURF_ACTION_RUNNING;
247 if (action->state_set == action_state->failed_action_set)
248 return SURF_ACTION_FAILED;
249 if (action->state_set == action_state->done_action_set)
250 return SURF_ACTION_DONE;
251 return SURF_ACTION_NOT_IN_THE_SYSTEM;
254 double surf_action_get_start_time(surf_action_t action)
256 return action->start;
259 double surf_action_get_finish_time(surf_action_t action)
261 return action->finish;
264 void surf_action_free(surf_action_t * action)
266 (*action)->model_type->action_cancel(*action);
271 void surf_action_change_state(surf_action_t action,
272 e_surf_action_state_t state)
274 surf_action_state_t action_state = &(action->model_type->states);
275 XBT_IN2("(%p,%s)", action, surf_action_state_names[state]);
276 xbt_swag_remove(action, action->state_set);
278 if (state == SURF_ACTION_READY)
279 action->state_set = action_state->ready_action_set;
280 else if (state == SURF_ACTION_RUNNING)
281 action->state_set = action_state->running_action_set;
282 else if (state == SURF_ACTION_FAILED)
283 action->state_set = action_state->failed_action_set;
284 else if (state == SURF_ACTION_DONE)
285 action->state_set = action_state->done_action_set;
287 action->state_set = NULL;
289 if (action->state_set)
290 xbt_swag_insert(action, action->state_set);
294 void surf_action_set_data(surf_action_t action, void *data)
299 XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
300 XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
301 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
302 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
303 XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
304 XBT_LOG_EXTERNAL_CATEGORY(surf_network);
305 XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
306 XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
307 XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
308 XBT_LOG_EXTERNAL_CATEGORY(surf_config);
312 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp_out);
313 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp);
316 XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
319 void surf_init(int *argc, char **argv)
321 /* Connect our log channels: that must be done manually under windows */
322 XBT_LOG_CONNECT(surf_cpu, surf);
323 XBT_LOG_CONNECT(surf_kernel, surf);
324 XBT_LOG_CONNECT(surf_lagrange, surf);
325 XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
326 XBT_LOG_CONNECT(surf_maxmin, surf);
327 XBT_LOG_CONNECT(surf_network, surf);
328 XBT_LOG_CONNECT(surf_parse, surf);
329 XBT_LOG_CONNECT(surf_timer, surf);
330 XBT_LOG_CONNECT(surf_workstation, surf);
331 XBT_LOG_CONNECT(surf_config, surf);
334 XBT_LOG_CONNECT(surf_sdp_out, surf);
335 XBT_LOG_CONNECT(surf_sdp, surf);
338 XBT_LOG_CONNECT(surf_network_gtnets, surf);
341 xbt_init(argc, argv);
343 model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
345 history = tmgr_history_new();
347 surf_config_init(argc, argv);
350 static char *path_name = NULL;
351 FILE *surf_fopen(const char *name, const char *mode)
356 unsigned int path_name_len = 0; /* don't count '\0' */
358 xbt_assert0(name, "Need a non-NULL file name");
360 xbt_assert0(surf_path,
361 "surf_init has to be called before using surf_fopen");
363 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
364 return fopen(name, mode);
366 } else { /* search relative files in the path */
369 path_name_len = strlen(name);
370 path_name = xbt_new0(char, path_name_len + 1);
373 xbt_dynar_foreach(surf_path, iter, path) {
374 if (path_name_len < strlen(path) + strlen(name) + 1) {
375 path_name_len = strlen(path) + strlen(name) + 1; /* plus '/' */
376 path_name = xbt_realloc(path_name, path_name_len + 1);
379 sprintf(path_name, "%s\\%s", path, name);
381 sprintf(path_name, "%s/%s", path, name);
383 file = fopen(path_name, mode);
394 surf_model_t model = NULL;
396 surf_config_finalize();
398 xbt_dynar_foreach(model_list, iter, model) {
399 model->model_private->finalize();
403 lmm_system_free(maxmin_system);
404 maxmin_system = NULL;
407 tmgr_history_free(history);
411 xbt_dynar_free(&model_list);
414 xbt_dynar_free(&surf_path);
417 surf_parse_lex_destroy();
422 surf_parse_free_callbacks();
423 xbt_dict_free(&route_table);
424 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
428 void surf_presolve(void)
430 double next_event_date = -1.0;
431 tmgr_trace_event_t event = NULL;
433 surf_resource_t resource = NULL;
434 surf_model_t model = NULL;
438 ("First Run! Let's \"purge\" events and put models in the right state");
439 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
440 if (next_event_date > NOW)
443 tmgr_history_get_next_event_leq(history, next_event_date,
444 &value, (void **) &resource))) {
445 resource->model->model_private->update_resource_state(resource,
450 xbt_dynar_foreach(model_list, iter, model) {
451 model->model_private->update_actions_state(NOW, 0.0);
455 double surf_solve(void)
458 double next_event_date = -1.0;
459 double model_next_action_end = -1.0;
461 surf_resource_t resource = NULL;
462 surf_model_t model = NULL;
463 tmgr_trace_event_t event = NULL;
468 DEBUG0("Looking for next action end");
469 xbt_dynar_foreach(model_list, iter, model) {
470 DEBUG1("Running for Resource [%s]", model->name);
471 model_next_action_end = model->model_private->share_resources(NOW);
472 DEBUG2("Resource [%s] : next action end = %f",
473 model->name, model_next_action_end);
474 if (((min < 0.0) || (model_next_action_end < min))
475 && (model_next_action_end >= 0.0))
476 min = model_next_action_end;
478 DEBUG1("Next action end : %f", min);
483 DEBUG0("Looking for next event");
484 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
485 DEBUG1("Next event : %f", next_event_date);
486 if (next_event_date > NOW + min)
488 DEBUG0("Updating models");
490 tmgr_history_get_next_event_leq(history, next_event_date,
491 &value, (void **) &resource))) {
492 if (resource->model->model_private->resource_used(resource)) {
493 min = next_event_date - NOW;
495 ("This event will modify model state. Next event set to %f", min);
497 /* update state of model_obj according to new value. Does not touch lmm.
498 It will be modified if needed when updating actions */
499 resource->model->model_private->update_resource_state(resource,
505 DEBUG1("Duration set to %f", min);
509 xbt_dynar_foreach(model_list, iter, model) {
510 model->model_private->update_actions_state(NOW, min);
516 double surf_get_clock(void)