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 typedef struct surf_model_object {
111 } s_surf_model_object_t, *surf_model_object_t;
113 static double NOW = 0;
115 xbt_dynar_t model_list = NULL;
116 tmgr_history_t history = NULL;
117 lmm_system_t maxmin_system = NULL;
118 xbt_dynar_t surf_path = NULL;
119 const char *surf_action_state_names[6] = {
121 "SURF_ACTION_RUNNING",
122 "SURF_ACTION_FAILED",
124 "SURF_ACTION_TO_FREE",
125 "SURF_ACTION_NOT_IN_THE_SYSTEM"
129 s_surf_model_description_t surf_network_model_description[] = {
130 {"Constant", NULL, surf_network_model_init_Constant},
131 {"CM02", NULL, surf_network_model_init_CM02},
132 {"LegrandVelho", NULL, surf_network_model_init_LegrandVelho},
134 {"GTNets", NULL, surf_network_model_init_GTNETS},
137 {"SDP", NULL, surf_network_model_init_SDP},
139 {"Reno", NULL, surf_network_model_init_Reno},
140 {"Reno2", NULL, surf_network_model_init_Reno2},
141 {"Vegas", NULL, surf_network_model_init_Vegas},
142 {NULL, NULL, NULL} /* this array must be NULL terminated */
145 s_surf_model_description_t surf_cpu_model_description[] = {
146 {"Cas01", NULL, surf_cpu_model_init_Cas01},
147 {NULL, NULL, NULL} /* this array must be NULL terminated */
150 s_surf_model_description_t surf_workstation_model_description[] = {
151 {"CLM03", NULL, surf_workstation_model_init_CLM03, create_workstations},
152 {"compound", NULL, surf_workstation_model_init_compound,
153 create_workstations},
154 {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07, NULL},
155 {NULL, NULL, NULL} /* this array must be NULL terminated */
158 void update_model_description(s_surf_model_description_t * table,
159 const char *name, surf_model_t model)
161 int i = find_model_description(table, name);
162 table[i].model = model;
165 int find_model_description(s_surf_model_description_t * table,
169 char *name_list = NULL;
171 for (i = 0; table[i].name; i++)
172 if (!strcmp(name, table[i].name)) {
175 name_list = strdup(table[0].name);
176 for (i = 1; table[i].name; i++) {
178 xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 2);
179 strcat(name_list, ", ");
180 strcat(name_list, table[i].name);
182 xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
186 double generic_maxmin_share_resources(xbt_swag_t running_actions,
189 void (*solve) (lmm_system_t))
191 surf_action_t action = NULL;
194 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
196 xbt_assert0(solve, "Give me a real solver function!");
199 xbt_swag_foreach(action, running_actions) {
200 value = lmm_variable_getvalue(VARIABLE(action));
201 if ((value > 0) || (action->max_duration >= 0))
209 if (action->remains > 0)
210 min = action->remains / value;
213 if ((action->max_duration >= 0) && (action->max_duration < min))
214 min = action->max_duration;
216 min = action->max_duration;
219 for (action = xbt_swag_getNext(action, running_actions->offset);
220 action; action = xbt_swag_getNext(action, running_actions->offset)) {
221 value = lmm_variable_getvalue(VARIABLE(action));
223 if (action->remains > 0)
224 value = action->remains / value;
229 DEBUG2("Updating min (value) with %p: %f", action, min);
232 if ((action->max_duration >= 0) && (action->max_duration < min)) {
233 min = action->max_duration;
234 DEBUG2("Updating min (duration) with %p: %f", action, min);
237 DEBUG1("min value : %f", min);
243 e_surf_action_state_t surf_action_get_state(surf_action_t action)
245 surf_action_state_t action_state =
246 &(action->model_type->common_public->states);
248 if (action->state_set == action_state->ready_action_set)
249 return SURF_ACTION_READY;
250 if (action->state_set == action_state->running_action_set)
251 return SURF_ACTION_RUNNING;
252 if (action->state_set == action_state->failed_action_set)
253 return SURF_ACTION_FAILED;
254 if (action->state_set == action_state->done_action_set)
255 return SURF_ACTION_DONE;
256 return SURF_ACTION_NOT_IN_THE_SYSTEM;
259 double surf_action_get_start_time(surf_action_t action)
261 return action->start;
264 double surf_action_get_finish_time(surf_action_t action)
266 return action->finish;
269 void surf_action_free(surf_action_t * action)
271 (*action)->model_type->common_public->action_cancel(*action);
276 void surf_action_change_state(surf_action_t action,
277 e_surf_action_state_t state)
279 surf_action_state_t action_state =
280 &(action->model_type->common_public->states);
281 XBT_IN2("(%p,%s)", action, surf_action_state_names[state]);
282 xbt_swag_remove(action, action->state_set);
284 if (state == SURF_ACTION_READY)
285 action->state_set = action_state->ready_action_set;
286 else if (state == SURF_ACTION_RUNNING)
287 action->state_set = action_state->running_action_set;
288 else if (state == SURF_ACTION_FAILED)
289 action->state_set = action_state->failed_action_set;
290 else if (state == SURF_ACTION_DONE)
291 action->state_set = action_state->done_action_set;
293 action->state_set = NULL;
295 if (action->state_set)
296 xbt_swag_insert(action, action->state_set);
300 void surf_action_set_data(surf_action_t action, void *data)
305 XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
306 XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
307 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
308 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
309 XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
310 XBT_LOG_EXTERNAL_CATEGORY(surf_network);
311 XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
312 XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
313 XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
316 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp_out);
317 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp);
320 XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
323 void surf_init(int *argc, char **argv)
328 const char *initial_path;
330 /* Connect our log channels: that must be done manually under windows */
331 XBT_LOG_CONNECT(surf_cpu, surf);
332 XBT_LOG_CONNECT(surf_kernel, surf);
333 XBT_LOG_CONNECT(surf_lagrange, surf);
334 XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
335 XBT_LOG_CONNECT(surf_maxmin, surf);
336 XBT_LOG_CONNECT(surf_network, surf);
337 XBT_LOG_CONNECT(surf_parse, surf);
338 XBT_LOG_CONNECT(surf_timer, surf);
339 XBT_LOG_CONNECT(surf_workstation, surf);
342 XBT_LOG_CONNECT(surf_sdp_out, surf);
343 XBT_LOG_CONNECT(surf_sdp, surf);
346 XBT_LOG_CONNECT(surf_network_gtnets, surf);
349 xbt_init(argc, argv);
352 /* retrieves the current directory of the current process */
353 initial_path = __surf_get_initial_path();
355 xbt_assert0((initial_path),
356 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
358 surf_path = xbt_dynar_new(sizeof(char *), NULL);
359 xbt_dynar_push(surf_path, &initial_path);
361 for (i = 1; i < *argc; i++) {
362 if (!strncmp(argv[i], "--surf-path=", strlen("--surf-path="))) {
363 opt = strchr(argv[i], '=');
365 xbt_dynar_push(surf_path, &opt);
366 /*remove this from argv */
367 for (j = i + 1; j < *argc; j++) {
368 argv[j - 1] = argv[j];
372 i--; /* compensate effect of next loop incrementation */
377 model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
379 history = tmgr_history_new();
382 static char *path_name = NULL;
383 FILE *surf_fopen(const char *name, const char *mode)
388 unsigned int path_name_len = 0; /* don't count '\0' */
390 xbt_assert0(name, "Need a non-NULL file name");
392 xbt_assert0(surf_path,
393 "surf_init has to be called before using surf_fopen");
395 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
396 return fopen(name, mode);
398 } else { /* search relative files in the path */
401 path_name_len = strlen(name);
402 path_name = xbt_new0(char, path_name_len + 1);
405 xbt_dynar_foreach(surf_path, iter, path) {
406 if (path_name_len < strlen(path) + strlen(name) + 1) {
407 path_name_len = strlen(path) + strlen(name) + 1; /* plus '/' */
408 path_name = xbt_realloc(path_name, path_name_len + 1);
411 sprintf(path_name, "%s\\%s", path, name);
413 sprintf(path_name, "%s/%s", path, name);
415 file = fopen(path_name, mode);
426 surf_model_t model = NULL;
428 xbt_dynar_foreach(model_list, iter, model) {
429 model->common_private->finalize();
433 lmm_system_free(maxmin_system);
434 maxmin_system = NULL;
437 tmgr_history_free(history);
441 xbt_dynar_free(&model_list);
444 xbt_dynar_free(&surf_path);
447 surf_parse_lex_destroy();
452 surf_parse_free_callbacks();
453 xbt_dict_free(&route_table);
454 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
458 void surf_presolve(void)
460 double next_event_date = -1.0;
461 tmgr_trace_event_t event = NULL;
463 surf_model_object_t model_obj = NULL;
464 surf_model_t model = NULL;
468 ("First Run! Let's \"purge\" events and put models in the right state");
469 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
470 if (next_event_date > NOW)
473 tmgr_history_get_next_event_leq(history, next_event_date,
474 &value, (void **) &model_obj))) {
475 model_obj->model->common_private->update_resource_state(model_obj,
480 xbt_dynar_foreach(model_list, iter, model) {
481 model->common_private->update_actions_state(NOW, 0.0);
485 double surf_solve(void)
488 double next_event_date = -1.0;
489 double model_next_action_end = -1.0;
491 surf_model_object_t model_obj = NULL;
492 surf_model_t model = NULL;
493 tmgr_trace_event_t event = NULL;
498 DEBUG0("Looking for next action end");
499 xbt_dynar_foreach(model_list, iter, model) {
500 DEBUG1("Running for Resource [%s]", model->common_public->name);
501 model_next_action_end = model->common_private->share_resources(NOW);
502 DEBUG2("Resource [%s] : next action end = %f",
503 model->common_public->name, model_next_action_end);
504 if (((min < 0.0) || (model_next_action_end < min))
505 && (model_next_action_end >= 0.0))
506 min = model_next_action_end;
508 DEBUG1("Next action end : %f", min);
513 DEBUG0("Looking for next event");
514 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
515 DEBUG1("Next event : %f", next_event_date);
516 if (next_event_date > NOW + min)
518 DEBUG0("Updating models");
520 tmgr_history_get_next_event_leq(history, next_event_date,
521 &value, (void **) &model_obj))) {
522 if (model_obj->model->common_private->resource_used(model_obj)) {
523 min = next_event_date - NOW;
525 ("This event will modify model state. Next event set to %f", min);
527 /* update state of model_obj according to new value. Does not touch lmm.
528 It will be modified if needed when updating actions */
529 model_obj->model->common_private->update_resource_state(model_obj,
535 DEBUG1("Duration set to %f", min);
539 xbt_dynar_foreach(model_list, iter, model) {
540 model->common_private->update_actions_state(NOW, min);
546 double surf_get_clock(void)