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 int surf_network_model_description_size = 3
136 s_surf_model_description_t surf_network_model_description[] = {
137 {"CM02", NULL, surf_network_model_init_CM02},
139 {"GTNets", NULL, surf_network_model_init_GTNETS},
142 {"SDP", NULL, surf_network_model_init_SDP},
144 {"Reno", NULL, surf_network_model_init_Reno},
145 {"Vegas", NULL, surf_network_model_init_Vegas}
148 int surf_cpu_model_description_size = 1;
149 s_surf_model_description_t surf_cpu_model_description[] = {
150 {"Cas01", NULL, surf_cpu_model_init_Cas01},
153 int surf_workstation_model_description_size = 4;
154 s_surf_model_description_t surf_workstation_model_description[] = {
155 {"CLM03", NULL, surf_workstation_model_init_CLM03},
156 {"KCCFLN05", NULL, surf_workstation_model_init_KCCFLN05},
157 {"compound", NULL, surf_workstation_model_init_compound},
158 {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07}
161 void update_model_description(s_surf_model_description_t * table,
166 int i = find_model_description(table, table_size, name);
167 table[i].model = model;
170 int find_model_description(s_surf_model_description_t * table,
171 int table_size, const char *name)
174 char *name_list = NULL;
176 for (i = 0; i < table_size; i++)
177 if (!strcmp(name, table[i].name)) {
180 name_list = strdup(table[0].name);
181 for (i = 1; i < table_size; i++) {
183 xbt_realloc(name_list,
184 strlen(name_list) + strlen(table[i].name) + 2);
185 strcat(name_list, ", ");
186 strcat(name_list, table[i].name);
188 xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
192 double generic_maxmin_share_models(xbt_swag_t running_actions,
195 return generic_maxmin_share_models2(running_actions, offset,
196 maxmin_system, lmm_solve);
199 double generic_maxmin_share_models2(xbt_swag_t running_actions,
202 void (*solve) (lmm_system_t))
204 surf_action_t action = NULL;
207 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
209 xbt_assert0(solve, "Give me a real solver function!");
212 xbt_swag_foreach(action, running_actions) {
213 value = lmm_variable_getvalue(VARIABLE(action));
214 if ((value > 0) || (action->max_duration >= 0))
222 if(action->remains>0)
223 min = action->remains / value;
226 if ((action->max_duration >= 0) && (action->max_duration < min))
227 min = action->max_duration;
229 min = action->max_duration;
231 DEBUG5("Found action (%p: duration = %f, remains = %f, value = %f) ! %f",
232 action, action->max_duration, action->remains, value, min);
234 for (action = xbt_swag_getNext(action, running_actions->offset);
236 action = xbt_swag_getNext(action, running_actions->offset)) {
237 value = lmm_variable_getvalue(VARIABLE(action));
239 if(action->remains>0)
240 value = action->remains / value;
245 DEBUG2("Updating min (value) with %p: %f", action, min);
248 if ((action->max_duration >= 0) && (action->max_duration < min)) {
249 min = action->max_duration;
250 DEBUG2("Updating min (duration) with %p: %f", action, min);
253 DEBUG1("min value : %f", min);
259 e_surf_action_state_t surf_action_get_state(surf_action_t action)
261 surf_action_state_t action_state =
262 &(action->model_type->common_public->states);
264 if (action->state_set == action_state->ready_action_set)
265 return SURF_ACTION_READY;
266 if (action->state_set == action_state->running_action_set)
267 return SURF_ACTION_RUNNING;
268 if (action->state_set == action_state->failed_action_set)
269 return SURF_ACTION_FAILED;
270 if (action->state_set == action_state->done_action_set)
271 return SURF_ACTION_DONE;
272 return SURF_ACTION_NOT_IN_THE_SYSTEM;
275 double surf_action_get_start_time(surf_action_t action)
277 return action->start;
280 double surf_action_get_finish_time(surf_action_t action)
282 return action->finish;
285 void surf_action_free(surf_action_t * action)
287 (*action)->model_type->common_public->action_cancel(*action);
292 void surf_action_change_state(surf_action_t action,
293 e_surf_action_state_t state)
295 surf_action_state_t action_state =
296 &(action->model_type->common_public->states);
297 XBT_IN2("(%p,%s)", action, surf_action_state_names[state]);
298 xbt_swag_remove(action, action->state_set);
300 if (state == SURF_ACTION_READY)
301 action->state_set = action_state->ready_action_set;
302 else if (state == SURF_ACTION_RUNNING)
303 action->state_set = action_state->running_action_set;
304 else if (state == SURF_ACTION_FAILED)
305 action->state_set = action_state->failed_action_set;
306 else if (state == SURF_ACTION_DONE)
307 action->state_set = action_state->done_action_set;
309 action->state_set = NULL;
311 if (action->state_set)
312 xbt_swag_insert(action, action->state_set);
316 void surf_action_set_data(surf_action_t action, void *data)
321 void surf_init(int *argc, char **argv)
326 const char *initial_path;
328 xbt_init(argc, argv);
331 /* retrieves the current directory of the current process */
332 initial_path = __surf_get_initial_path();
334 xbt_assert0((initial_path),
335 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
337 surf_path = xbt_dynar_new(sizeof(char *), NULL);
338 xbt_dynar_push(surf_path, &initial_path);
340 for (i = 1; i < *argc; i++) {
341 if (!strncmp(argv[i], "--surf-path=", strlen("--surf-path="))) {
342 opt = strchr(argv[i], '=');
344 xbt_dynar_push(surf_path, &opt);
345 /*remove this from argv */
346 for (j = i + 1; j < *argc; j++) {
347 argv[j - 1] = argv[j];
351 i--; /* compensate effect of next loop incrementation */
356 model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
358 history = tmgr_history_new();
360 maxmin_system = lmm_system_new();
363 static char *path_name = NULL;
364 FILE *surf_fopen(const char *name, const char *mode)
369 int path_name_len = 0; /* don't count '\0' */
371 xbt_assert0(name, "Need a non-NULL file name");
373 xbt_assert0(surf_path,
374 "surf_init has to be called before using surf_fopen");
376 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
377 return fopen(name, mode);
379 } else { /* search relative files in the path */
382 path_name_len = strlen(name);
383 path_name = xbt_new0(char, path_name_len + 1);
386 xbt_dynar_foreach(surf_path, i, path) {
387 if (path_name_len < strlen(path) + strlen(name) + 1) {
388 path_name_len = strlen(path) + strlen(name) + 1; /* plus '/' */
389 path_name = xbt_realloc(path_name, path_name_len + 1);
391 sprintf(path_name, "%s/%s", path, name);
392 file = fopen(path_name, mode);
403 surf_model_t model = NULL;
405 xbt_dynar_foreach(model_list, i, model) {
406 model->common_private->finalize();
410 lmm_system_free(maxmin_system);
411 maxmin_system = NULL;
414 tmgr_history_free(history);
418 xbt_dynar_free(&model_list);
421 xbt_dynar_free(&surf_path);
424 surf_parse_lex_destroy();
432 double surf_solve(void)
434 static int first_run = 1;
437 double next_event_date = -1.0;
438 double model_next_action_end = -1.0;
440 surf_model_object_t model_obj = NULL;
441 surf_model_t model = NULL;
442 tmgr_trace_event_t event = NULL;
447 ("First Run! Let's \"purge\" events and put models in the right state");
448 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
449 if (next_event_date > NOW)
452 tmgr_history_get_next_event_leq(history, next_event_date,
454 (void **) &model_obj))) {
455 model_obj->model->common_private->
456 update_model_state(model_obj, event, value);
459 xbt_dynar_foreach(model_list, i, model) {
460 model->common_private->update_actions_state(NOW, 0.0);
468 DEBUG0("Looking for next action end");
469 xbt_dynar_foreach(model_list, i, model) {
470 DEBUG1("Running for Resource [%s]", model->common_public->name);
471 model_next_action_end =
472 model->common_private->share_models(NOW);
473 DEBUG2("Resource [%s] : next action end = %f",
474 model->common_public->name, model_next_action_end);
475 if (((min < 0.0) || (model_next_action_end < min))
476 && (model_next_action_end >= 0.0))
477 min = model_next_action_end;
479 DEBUG1("Next action end : %f", min);
484 DEBUG0("Looking for next event");
485 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
486 DEBUG1("Next event : %f", next_event_date);
487 if (next_event_date > NOW + min)
489 DEBUG0("Updating models");
491 tmgr_history_get_next_event_leq(history, next_event_date,
493 (void **) &model_obj))) {
494 if (model_obj->model->common_private->
495 model_used(model_obj)) {
496 min = next_event_date - NOW;
498 ("This event will modify model state. Next event set to %f",
501 /* update state of model_obj according to new value. Does not touch lmm.
502 It will be modified if needed when updating actions */
503 model_obj->model->common_private->
504 update_model_state(model_obj, event, value);
508 DEBUG1("Duration set to %f", min);
512 xbt_dynar_foreach(model_list, i, model) {
513 model->common_private->update_actions_state(NOW, min);
519 double surf_get_clock(void)