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 /* Additional declarations for Windows potability. */
24 static const char *disk_drives_letter_table[MAX_DRIVE] = {
52 #endif /* #ifdef _WIN32 */
55 * Returns the initial path. On Windows the initial path is
56 * the current directory for the current process in the other
57 * case the function returns "./" that represents the current
58 * directory on Unix/Linux platforms.
61 const char *__surf_get_initial_path(void)
66 char current_directory[MAX_PATH + 1] = { 0 };
67 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
73 strncpy(root, current_directory, 3);
75 for (i = 0; i < MAX_DRIVE; i++) {
76 if (toupper(root[0]) == disk_drives_letter_table[i][0])
77 return disk_drives_letter_table[i];
86 /* The __surf_is_absolute_file_path() returns 1 if
87 * file_path is a absolute file path, in the other
88 * case the function returns 0.
90 int __surf_is_absolute_file_path(const char *file_path)
93 WIN32_FIND_DATA wfd = { 0 };
94 HANDLE hFile = FindFirstFile(file_path, &wfd);
96 if (INVALID_HANDLE_VALUE == hFile)
102 return (file_path[0] == '/');
106 static double NOW = 0;
108 xbt_dynar_t model_list = NULL;
109 tmgr_history_t history = NULL;
110 lmm_system_t maxmin_system = NULL;
111 xbt_dynar_t surf_path = NULL;
113 /* Don't forget to update the option description in smx_config when you change this */
114 s_surf_model_description_t surf_network_model_description[] = {
115 {"Constant", NULL, surf_network_model_init_Constant},
116 {"CM02", NULL, surf_network_model_init_CM02},
117 {"LegrandVelho", NULL, surf_network_model_init_LegrandVelho},
119 {"GTNets", NULL, surf_network_model_init_GTNETS},
121 {"Reno", NULL, surf_network_model_init_Reno},
122 {"Reno2", NULL, surf_network_model_init_Reno2},
123 {"Vegas", NULL, surf_network_model_init_Vegas},
124 {NULL, NULL, NULL} /* this array must be NULL terminated */
127 s_surf_model_description_t surf_cpu_model_description[] = {
128 {"Cas01", NULL, surf_cpu_model_init_Cas01},
129 {NULL, NULL, NULL} /* this array must be NULL terminated */
132 s_surf_model_description_t surf_workstation_model_description[] = {
133 {"CLM03", NULL, surf_workstation_model_init_CLM03, create_workstations},
134 {"compound", NULL, surf_workstation_model_init_compound,
135 create_workstations},
136 {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07, NULL},
137 {NULL, NULL, NULL} /* this array must be NULL terminated */
140 void update_model_description(s_surf_model_description_t * table,
141 const char *name, surf_model_t model)
143 int i = find_model_description(table, name);
144 table[i].model = model;
147 int find_model_description(s_surf_model_description_t * table,
151 char *name_list = NULL;
153 for (i = 0; table[i].name; i++)
154 if (!strcmp(name, table[i].name)) {
157 name_list = strdup(table[0].name);
158 for (i = 1; table[i].name; i++) {
160 xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 2);
161 strcat(name_list, ", ");
162 strcat(name_list, table[i].name);
164 xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
168 double generic_maxmin_share_resources(xbt_swag_t running_actions,
171 void (*solve) (lmm_system_t))
173 surf_action_t action = NULL;
176 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
178 xbt_assert0(solve, "Give me a real solver function!");
181 xbt_swag_foreach(action, running_actions) {
182 value = lmm_variable_getvalue(VARIABLE(action));
183 if ((value > 0) || (action->max_duration >= 0))
191 if (action->remains > 0)
192 min = action->remains / value;
195 if ((action->max_duration >= 0) && (action->max_duration < min))
196 min = action->max_duration;
198 min = action->max_duration;
201 for (action = xbt_swag_getNext(action, running_actions->offset);
202 action; action = xbt_swag_getNext(action, running_actions->offset)) {
203 value = lmm_variable_getvalue(VARIABLE(action));
205 if (action->remains > 0)
206 value = action->remains / value;
211 DEBUG2("Updating min (value) with %p: %f", action, min);
214 if ((action->max_duration >= 0) && (action->max_duration < min)) {
215 min = action->max_duration;
216 DEBUG2("Updating min (duration) with %p: %f", action, min);
219 DEBUG1("min value : %f", min);
226 XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
227 XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
228 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
229 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
230 XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
231 XBT_LOG_EXTERNAL_CATEGORY(surf_network);
232 XBT_LOG_EXTERNAL_CATEGORY(surf_trace);
233 XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
234 XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
235 XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
236 XBT_LOG_EXTERNAL_CATEGORY(surf_config);
240 XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
243 void surf_init(int *argc, char **argv)
245 /* Connect our log channels: that must be done manually under windows */
246 XBT_LOG_CONNECT(surf_cpu, surf);
247 XBT_LOG_CONNECT(surf_kernel, surf);
248 XBT_LOG_CONNECT(surf_lagrange, surf);
249 XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
250 XBT_LOG_CONNECT(surf_maxmin, surf);
251 XBT_LOG_CONNECT(surf_network, surf);
252 XBT_LOG_CONNECT(surf_trace, surf);
253 XBT_LOG_CONNECT(surf_parse, surf);
254 XBT_LOG_CONNECT(surf_timer, surf);
255 XBT_LOG_CONNECT(surf_workstation, surf);
256 XBT_LOG_CONNECT(surf_config, surf);
259 XBT_LOG_CONNECT(surf_network_gtnets, surf);
262 xbt_init(argc, argv);
264 model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
266 history = tmgr_history_new();
268 surf_config_init(argc, argv);
271 static char *path_name = NULL;
272 FILE *surf_fopen(const char *name, const char *mode)
277 unsigned int path_name_len = 0; /* don't count '\0' */
279 xbt_assert0(name, "Need a non-NULL file name");
281 xbt_assert0(surf_path,
282 "surf_init has to be called before using surf_fopen");
284 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
285 return fopen(name, mode);
287 } else { /* search relative files in the path */
290 path_name_len = strlen(name);
291 path_name = xbt_new0(char, path_name_len + 1);
294 xbt_dynar_foreach(surf_path, iter, path) {
295 if (path_name_len < strlen(path) + strlen(name) + 1) {
296 path_name_len = strlen(path) + strlen(name) + 1; /* plus '/' */
297 path_name = xbt_realloc(path_name, path_name_len + 1);
300 sprintf(path_name, "%s\\%s", path, name);
302 sprintf(path_name, "%s/%s", path, name);
304 file = fopen(path_name, mode);
315 surf_model_t model = NULL;
317 surf_config_finalize();
319 xbt_dynar_foreach(model_list, iter, model) {
320 model->model_private->finalize();
324 lmm_system_free(maxmin_system);
325 maxmin_system = NULL;
328 tmgr_history_free(history);
332 xbt_dynar_free(&model_list);
335 xbt_dynar_free(&surf_path);
338 surf_parse_lex_destroy();
343 surf_parse_free_callbacks();
344 xbt_dict_free(&route_table);
345 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
349 void surf_presolve(void)
351 double next_event_date = -1.0;
352 tmgr_trace_event_t event = NULL;
354 surf_resource_t resource = NULL;
355 surf_model_t model = NULL;
359 ("First Run! Let's \"purge\" events and put models in the right state");
360 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
361 if (next_event_date > NOW)
364 tmgr_history_get_next_event_leq(history, next_event_date,
365 &value, (void **) &resource))) {
366 resource->model->model_private->update_resource_state(resource,
371 xbt_dynar_foreach(model_list, iter, model) {
372 model->model_private->update_actions_state(NOW, 0.0);
376 double surf_solve(void)
379 double next_event_date = -1.0;
380 double model_next_action_end = -1.0;
382 surf_resource_t resource = NULL;
383 surf_model_t model = NULL;
384 tmgr_trace_event_t event = NULL;
389 DEBUG0("Looking for next action end");
390 xbt_dynar_foreach(model_list, iter, model) {
391 DEBUG1("Running for Resource [%s]", model->name);
392 model_next_action_end = model->model_private->share_resources(NOW);
393 DEBUG2("Resource [%s] : next action end = %f",
394 model->name, model_next_action_end);
395 if (((min < 0.0) || (model_next_action_end < min))
396 && (model_next_action_end >= 0.0))
397 min = model_next_action_end;
399 DEBUG1("Next action end : %f", min);
404 DEBUG0("Looking for next event");
405 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
406 DEBUG1("Next event : %f", next_event_date);
407 if (next_event_date > NOW + min)
409 DEBUG0("Updating models");
411 tmgr_history_get_next_event_leq(history, next_event_date,
412 &value, (void **) &resource))) {
413 if (resource->model->model_private->resource_used(resource)) {
414 min = next_event_date - NOW;
416 ("This event will modify model state. Next event set to %f", min);
418 /* update state of model_obj according to new value. Does not touch lmm.
419 It will be modified if needed when updating actions */
420 resource->model->model_private->update_resource_state(resource,
426 DEBUG1("Duration set to %f", min);
430 xbt_dynar_foreach(model_list, iter, model) {
431 model->model_private->update_actions_state(NOW, min);
437 double surf_get_clock(void)