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;
116 /* Don't forget to update the option description in smx_config when you change this */
117 s_surf_model_description_t surf_network_model_description[] = {
118 {"Constant", NULL, surf_network_model_init_Constant},
119 {"CM02", NULL, surf_network_model_init_CM02},
120 {"LegrandVelho", NULL, surf_network_model_init_LegrandVelho},
122 {"GTNets", NULL, surf_network_model_init_GTNETS},
125 {"SDP", NULL, surf_network_model_init_SDP},
127 {"Reno", NULL, surf_network_model_init_Reno},
128 {"Reno2", NULL, surf_network_model_init_Reno2},
129 {"Vegas", NULL, surf_network_model_init_Vegas},
130 {NULL, NULL, NULL} /* this array must be NULL terminated */
133 s_surf_model_description_t surf_cpu_model_description[] = {
134 {"Cas01", NULL, surf_cpu_model_init_Cas01},
135 {NULL, NULL, NULL} /* this array must be NULL terminated */
138 s_surf_model_description_t surf_workstation_model_description[] = {
139 {"CLM03", NULL, surf_workstation_model_init_CLM03, create_workstations},
140 {"compound", NULL, surf_workstation_model_init_compound,
141 create_workstations},
142 {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07, NULL},
143 {NULL, NULL, NULL} /* this array must be NULL terminated */
146 void update_model_description(s_surf_model_description_t * table,
147 const char *name, surf_model_t model)
149 int i = find_model_description(table, name);
150 table[i].model = model;
153 int find_model_description(s_surf_model_description_t * table,
157 char *name_list = NULL;
159 for (i = 0; table[i].name; i++)
160 if (!strcmp(name, table[i].name)) {
163 name_list = strdup(table[0].name);
164 for (i = 1; table[i].name; i++) {
166 xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 2);
167 strcat(name_list, ", ");
168 strcat(name_list, table[i].name);
170 xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
174 double generic_maxmin_share_resources(xbt_swag_t running_actions,
177 void (*solve) (lmm_system_t))
179 surf_action_t action = NULL;
182 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
184 xbt_assert0(solve, "Give me a real solver function!");
187 xbt_swag_foreach(action, running_actions) {
188 value = lmm_variable_getvalue(VARIABLE(action));
189 if ((value > 0) || (action->max_duration >= 0))
197 if (action->remains > 0)
198 min = action->remains / value;
201 if ((action->max_duration >= 0) && (action->max_duration < min))
202 min = action->max_duration;
204 min = action->max_duration;
207 for (action = xbt_swag_getNext(action, running_actions->offset);
208 action; action = xbt_swag_getNext(action, running_actions->offset)) {
209 value = lmm_variable_getvalue(VARIABLE(action));
211 if (action->remains > 0)
212 value = action->remains / value;
217 DEBUG2("Updating min (value) with %p: %f", action, min);
220 if ((action->max_duration >= 0) && (action->max_duration < min)) {
221 min = action->max_duration;
222 DEBUG2("Updating min (duration) with %p: %f", action, min);
225 DEBUG1("min value : %f", min);
232 XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
233 XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
234 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
235 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
236 XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
237 XBT_LOG_EXTERNAL_CATEGORY(surf_network);
238 XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
239 XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
240 XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
241 XBT_LOG_EXTERNAL_CATEGORY(surf_config);
245 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp_out);
246 XBT_LOG_EXTERNAL_CATEGORY(surf_sdp);
249 XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
252 void surf_init(int *argc, char **argv)
254 /* Connect our log channels: that must be done manually under windows */
255 XBT_LOG_CONNECT(surf_cpu, surf);
256 XBT_LOG_CONNECT(surf_kernel, surf);
257 XBT_LOG_CONNECT(surf_lagrange, surf);
258 XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
259 XBT_LOG_CONNECT(surf_maxmin, surf);
260 XBT_LOG_CONNECT(surf_network, surf);
261 XBT_LOG_CONNECT(surf_parse, surf);
262 XBT_LOG_CONNECT(surf_timer, surf);
263 XBT_LOG_CONNECT(surf_workstation, surf);
264 XBT_LOG_CONNECT(surf_config, surf);
267 XBT_LOG_CONNECT(surf_sdp_out, surf);
268 XBT_LOG_CONNECT(surf_sdp, surf);
271 XBT_LOG_CONNECT(surf_network_gtnets, surf);
274 xbt_init(argc, argv);
276 model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
278 history = tmgr_history_new();
280 surf_config_init(argc, argv);
283 static char *path_name = NULL;
284 FILE *surf_fopen(const char *name, const char *mode)
289 unsigned int path_name_len = 0; /* don't count '\0' */
291 xbt_assert0(name, "Need a non-NULL file name");
293 xbt_assert0(surf_path,
294 "surf_init has to be called before using surf_fopen");
296 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
297 return fopen(name, mode);
299 } else { /* search relative files in the path */
302 path_name_len = strlen(name);
303 path_name = xbt_new0(char, path_name_len + 1);
306 xbt_dynar_foreach(surf_path, iter, path) {
307 if (path_name_len < strlen(path) + strlen(name) + 1) {
308 path_name_len = strlen(path) + strlen(name) + 1; /* plus '/' */
309 path_name = xbt_realloc(path_name, path_name_len + 1);
312 sprintf(path_name, "%s\\%s", path, name);
314 sprintf(path_name, "%s/%s", path, name);
316 file = fopen(path_name, mode);
327 surf_model_t model = NULL;
329 surf_config_finalize();
331 xbt_dynar_foreach(model_list, iter, model) {
332 model->model_private->finalize();
336 lmm_system_free(maxmin_system);
337 maxmin_system = NULL;
340 tmgr_history_free(history);
344 xbt_dynar_free(&model_list);
347 xbt_dynar_free(&surf_path);
350 surf_parse_lex_destroy();
355 surf_parse_free_callbacks();
356 xbt_dict_free(&route_table);
357 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
361 void surf_presolve(void)
363 double next_event_date = -1.0;
364 tmgr_trace_event_t event = NULL;
366 surf_resource_t resource = NULL;
367 surf_model_t model = NULL;
371 ("First Run! Let's \"purge\" events and put models in the right state");
372 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
373 if (next_event_date > NOW)
376 tmgr_history_get_next_event_leq(history, next_event_date,
377 &value, (void **) &resource))) {
378 resource->model->model_private->update_resource_state(resource,
383 xbt_dynar_foreach(model_list, iter, model) {
384 model->model_private->update_actions_state(NOW, 0.0);
388 double surf_solve(void)
391 double next_event_date = -1.0;
392 double model_next_action_end = -1.0;
394 surf_resource_t resource = NULL;
395 surf_model_t model = NULL;
396 tmgr_trace_event_t event = NULL;
401 DEBUG0("Looking for next action end");
402 xbt_dynar_foreach(model_list, iter, model) {
403 DEBUG1("Running for Resource [%s]", model->name);
404 model_next_action_end = model->model_private->share_resources(NOW);
405 DEBUG2("Resource [%s] : next action end = %f",
406 model->name, model_next_action_end);
407 if (((min < 0.0) || (model_next_action_end < min))
408 && (model_next_action_end >= 0.0))
409 min = model_next_action_end;
411 DEBUG1("Next action end : %f", min);
416 DEBUG0("Looking for next event");
417 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
418 DEBUG1("Next event : %f", next_event_date);
419 if (next_event_date > NOW + min)
421 DEBUG0("Updating models");
423 tmgr_history_get_next_event_leq(history, next_event_date,
424 &value, (void **) &resource))) {
425 if (resource->model->model_private->resource_used(resource)) {
426 min = next_event_date - NOW;
428 ("This event will modify model state. Next event set to %f", min);
430 /* update state of model_obj according to new value. Does not touch lmm.
431 It will be modified if needed when updating actions */
432 resource->model->model_private->update_resource_state(resource,
438 DEBUG1("Duration set to %f", min);
442 xbt_dynar_foreach(model_list, iter, model) {
443 model->model_private->update_actions_state(NOW, min);
449 double surf_get_clock(void)