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"
128 s_surf_model_description_t surf_network_model_description[surf_network_model_description_size] = {
129 {"Constant", NULL, surf_network_model_init_Constant},
130 {"CM02", NULL, surf_network_model_init_CM02},
132 {"GTNets", NULL, surf_network_model_init_GTNETS},
135 {"SDP", NULL, surf_network_model_init_SDP},
137 {"Reno", NULL, surf_network_model_init_Reno},
138 {"Vegas", NULL, surf_network_model_init_Vegas}
141 s_surf_model_description_t surf_cpu_model_description[surf_cpu_model_description_size] = {
142 {"Cas01", NULL, surf_cpu_model_init_Cas01},
145 s_surf_model_description_t surf_workstation_model_description[surf_workstation_model_description_size] = {
146 {"CLM03", NULL, surf_workstation_model_init_CLM03, create_workstations},
147 {"compound", NULL, surf_workstation_model_init_compound, create_workstations},
148 {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07, NULL}
151 void update_model_description(s_surf_model_description_t * table,
156 int i = find_model_description(table, table_size, name);
157 table[i].model = model;
160 int find_model_description(s_surf_model_description_t * table,
161 int table_size, const char *name)
164 char *name_list = NULL;
166 for (i = 0; i < table_size; i++)
167 if (!strcmp(name, table[i].name)) {
170 name_list = strdup(table[0].name);
171 for (i = 1; i < table_size; i++) {
173 xbt_realloc(name_list,
174 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;
214 DEBUG5("Found action (%p: duration = %f, remains = %f, value = %f) ! %f",
215 action, action->max_duration, action->remains, value, min);
217 for (action = xbt_swag_getNext(action, running_actions->offset);
219 action = xbt_swag_getNext(action, running_actions->offset)) {
220 value = lmm_variable_getvalue(VARIABLE(action));
222 if(action->remains>0)
223 value = action->remains / value;
228 DEBUG2("Updating min (value) with %p: %f", action, min);
231 if ((action->max_duration >= 0) && (action->max_duration < min)) {
232 min = action->max_duration;
233 DEBUG2("Updating min (duration) with %p: %f", action, min);
236 DEBUG1("min value : %f", min);
242 e_surf_action_state_t surf_action_get_state(surf_action_t action)
244 surf_action_state_t action_state =
245 &(action->model_type->common_public->states);
247 if (action->state_set == action_state->ready_action_set)
248 return SURF_ACTION_READY;
249 if (action->state_set == action_state->running_action_set)
250 return SURF_ACTION_RUNNING;
251 if (action->state_set == action_state->failed_action_set)
252 return SURF_ACTION_FAILED;
253 if (action->state_set == action_state->done_action_set)
254 return SURF_ACTION_DONE;
255 return SURF_ACTION_NOT_IN_THE_SYSTEM;
258 double surf_action_get_start_time(surf_action_t action)
260 return action->start;
263 double surf_action_get_finish_time(surf_action_t action)
265 return action->finish;
268 void surf_action_free(surf_action_t * action)
270 (*action)->model_type->common_public->action_cancel(*action);
275 void surf_action_change_state(surf_action_t action,
276 e_surf_action_state_t state)
278 surf_action_state_t action_state =
279 &(action->model_type->common_public->states);
280 XBT_IN2("(%p,%s)", action, surf_action_state_names[state]);
281 xbt_swag_remove(action, action->state_set);
283 if (state == SURF_ACTION_READY)
284 action->state_set = action_state->ready_action_set;
285 else if (state == SURF_ACTION_RUNNING)
286 action->state_set = action_state->running_action_set;
287 else if (state == SURF_ACTION_FAILED)
288 action->state_set = action_state->failed_action_set;
289 else if (state == SURF_ACTION_DONE)
290 action->state_set = action_state->done_action_set;
292 action->state_set = NULL;
294 if (action->state_set)
295 xbt_swag_insert(action, action->state_set);
299 void surf_action_set_data(surf_action_t action, void *data)
304 XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
305 XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
306 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
307 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
308 XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
309 XBT_LOG_EXTERNAL_CATEGORY(surf_network);
310 XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
311 XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
312 XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
315 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp_out);
316 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp);
319 XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
322 void surf_init(int *argc, char **argv)
327 const char *initial_path;
329 /* Connect our log channels: that must be done manually under windows */
330 XBT_LOG_CONNECT(surf_cpu, surf);
331 XBT_LOG_CONNECT(surf_kernel, surf);
332 XBT_LOG_CONNECT(surf_lagrange, surf);
333 XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
334 XBT_LOG_CONNECT(surf_maxmin, surf);
335 XBT_LOG_CONNECT(surf_network, surf);
336 XBT_LOG_CONNECT(surf_parse, surf);
337 XBT_LOG_CONNECT(surf_timer, surf);
338 XBT_LOG_CONNECT(surf_workstation, surf);
341 XBT_LOG_CONNECT(surf_sdp_out, surf);
342 XBT_LOG_CONNECT(surf_sdp, surf);
345 XBT_LOG_CONNECT(surf_network_gtnets, surf);
348 xbt_init(argc, argv);
351 /* retrieves the current directory of the current process */
352 initial_path = __surf_get_initial_path();
354 xbt_assert0((initial_path),
355 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
357 surf_path = xbt_dynar_new(sizeof(char *), NULL);
358 xbt_dynar_push(surf_path, &initial_path);
360 for (i = 1; i < *argc; i++) {
361 if (!strncmp(argv[i], "--surf-path=", strlen("--surf-path="))) {
362 opt = strchr(argv[i], '=');
364 xbt_dynar_push(surf_path, &opt);
365 /*remove this from argv */
366 for (j = i + 1; j < *argc; j++) {
367 argv[j - 1] = argv[j];
371 i--; /* compensate effect of next loop incrementation */
376 model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
378 history = tmgr_history_new();
381 static char *path_name = NULL;
382 FILE *surf_fopen(const char *name, const char *mode)
387 unsigned int path_name_len = 0; /* don't count '\0' */
389 xbt_assert0(name, "Need a non-NULL file name");
391 xbt_assert0(surf_path,
392 "surf_init has to be called before using surf_fopen");
394 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
395 return fopen(name, mode);
397 } else { /* search relative files in the path */
400 path_name_len = strlen(name);
401 path_name = xbt_new0(char, path_name_len + 1);
404 xbt_dynar_foreach(surf_path, iter, path) {
405 if (path_name_len < strlen(path) + strlen(name) + 1) {
406 path_name_len = strlen(path) + strlen(name) + 1; /* plus '/' */
407 path_name = xbt_realloc(path_name, path_name_len + 1);
410 sprintf(path_name, "%s\\%s", path, name);
412 sprintf(path_name, "%s/%s", path, name);
414 file = fopen(path_name, mode);
425 surf_model_t model = NULL;
427 xbt_dynar_foreach(model_list, iter, model) {
428 model->common_private->finalize();
432 lmm_system_free(maxmin_system);
433 maxmin_system = NULL;
436 tmgr_history_free(history);
440 xbt_dynar_free(&model_list);
443 xbt_dynar_free(&surf_path);
446 surf_parse_lex_destroy();
451 surf_parse_free_callbacks();
452 xbt_dict_free(&route_table);
453 NOW=0; /* Just in case the user plans to restart the simulation afterward */
457 void surf_presolve(void) {
458 double next_event_date = -1.0;
459 tmgr_trace_event_t event = NULL;
461 surf_model_object_t model_obj = NULL;
462 surf_model_t model = NULL;
466 ("First Run! Let's \"purge\" events and put models in the right state");
467 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
468 if (next_event_date > NOW)
471 tmgr_history_get_next_event_leq(history, next_event_date,
473 (void **) &model_obj))) {
474 model_obj->model->common_private->
475 update_resource_state(model_obj, event, value,NOW);
478 xbt_dynar_foreach(model_list, iter, model) {
479 model->common_private->update_actions_state(NOW, 0.0);
483 double surf_solve(void)
486 double next_event_date = -1.0;
487 double model_next_action_end = -1.0;
489 surf_model_object_t model_obj = NULL;
490 surf_model_t model = NULL;
491 tmgr_trace_event_t event = NULL;
496 DEBUG0("Looking for next action end");
497 xbt_dynar_foreach(model_list, iter, model) {
498 DEBUG1("Running for Resource [%s]", model->common_public->name);
499 model_next_action_end =
500 model->common_private->share_resources(NOW);
501 DEBUG2("Resource [%s] : next action end = %f",
502 model->common_public->name, model_next_action_end);
503 if (((min < 0.0) || (model_next_action_end < min))
504 && (model_next_action_end >= 0.0))
505 min = model_next_action_end;
507 DEBUG1("Next action end : %f", min);
512 DEBUG0("Looking for next event");
513 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
514 DEBUG1("Next event : %f", next_event_date);
515 if (next_event_date > NOW + min)
517 DEBUG0("Updating models");
519 tmgr_history_get_next_event_leq(history, next_event_date,
521 (void **) &model_obj))) {
522 if (model_obj->model->common_private->
523 resource_used(model_obj)) {
524 min = next_event_date - NOW;
526 ("This event will modify model state. Next event set to %f",
529 /* update state of model_obj according to new value. Does not touch lmm.
530 It will be modified if needed when updating actions */
531 model_obj->model->common_private->
532 update_resource_state(model_obj, event, value,NOW+min);
536 DEBUG1("Duration set to %f", min);
540 xbt_dynar_foreach(model_list, iter, model) {
541 model->common_private->update_actions_state(NOW, min);
547 double surf_get_clock(void)