1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "surf_private.h"
10 #include "xbt/module.h"
12 #include "surf/surf_resource.h"
13 //#include "surf/surf_resource_lmm.h"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
17 "Logging specific to SURF (kernel)");
19 /* Additional declarations for Windows potability. */
27 static const char *disk_drives_letter_table[MAX_DRIVE] = {
55 #endif /* #ifdef _XBT_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] == '/');
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[] = {
119 "Simplistic network model where all communication take a constant time (one second)",
120 surf_network_model_init_Constant},
122 "Realistic network model with lmm_solve and no correction factors",
123 surf_network_model_init_CM02},
125 "Realistic network model with lmm_solve, adequate correction factors (latency*=10.4, bandwidth*=.92, S=8775) and partial invalidation optimization",
126 im_surf_network_model_init_LegrandVelho},
128 "Realistic network model wit lmm_solve, adequate correction factors (latency*=10.4, bandwidth*=.92, S=8775) but no further optimization. Should produce the same results as LV08, only slower.",
129 surf_network_model_init_LegrandVelho},
131 "Realistic network model with lmm_solve and correction factors on three intervals (< 1KiB, < 64 KiB, >= 64 KiB)",
132 surf_network_model_init_SMPI},
135 "Network Pseudo-model using the GTNets simulator instead of an analytic model",
136 surf_network_model_init_GTNETS},
141 surf_network_model_init_NS3},
144 "Model using lagrange_solve instead of lmm_solve (experts only)",
145 surf_network_model_init_Reno},
147 "Model using lagrange_solve instead of lmm_solve (experts only)",
148 surf_network_model_init_Reno2},
150 "Model using lagrange_solve instead of lmm_solve (experts only)",
151 surf_network_model_init_Vegas},
152 {NULL, NULL, NULL} /* this array must be NULL terminated */
155 s_surf_model_description_t surf_cpu_model_description[] = {
156 {"Cas01_fullupdate", "CPU classical model time=size/power",
157 surf_cpu_model_init_Cas01},
159 "Variation of Cas01_fullupdate with partial invalidation optimization of lmm system. Should produce the same values, only faster",
160 surf_cpu_model_init_Cas01_im},
162 "Variation of Cas01 with also trace integration. Should produce the same values, only faster if you use availability traces",
163 surf_cpu_model_init_ti},
164 {NULL, NULL, NULL} /* this array must be NULL terminated */
167 s_surf_model_description_t surf_workstation_model_description[] = {
169 "Default workstation model, using LV08 and CM02 as network and CPU",
170 surf_workstation_model_init_CLM03},
172 "Workstation model allowing you to use other network and CPU models",
173 surf_workstation_model_init_compound},
174 {"ptask_L07", "Workstation model with better parallel task modeling",
175 surf_workstation_model_init_ptask_L07},
176 {NULL, NULL, NULL} /* this array must be NULL terminated */
179 /** Displays the long description of all registered models, and quit */
180 void model_help(const char *category, s_surf_model_description_t * table)
183 printf("Long description of the %s models accepted by this simulator:\n",
185 for (i = 0; table[i].name; i++)
186 printf(" %s: %s\n", table[i].name, table[i].description);
189 int find_model_description(s_surf_model_description_t * table,
193 char *name_list = NULL;
195 for (i = 0; table[i].name; i++)
196 if (!strcmp(name, table[i].name)) {
199 name_list = strdup(table[0].name);
200 for (i = 1; table[i].name; i++) {
202 xbt_realloc(name_list,
203 strlen(name_list) + strlen(table[i].name) + 2);
204 strcat(name_list, ", ");
205 strcat(name_list, table[i].name);
207 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
211 double generic_maxmin_share_resources(xbt_swag_t running_actions,
214 void (*solve) (lmm_system_t))
216 surf_action_t action = NULL;
219 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
223 xbt_swag_foreach(action, running_actions) {
224 value = lmm_variable_getvalue(VARIABLE(action));
225 if ((value > 0) || (action->max_duration >= 0))
233 if (action->remains > 0)
234 min = action->remains / value;
237 if ((action->max_duration >= 0) && (action->max_duration < min))
238 min = action->max_duration;
240 min = action->max_duration;
243 for (action = xbt_swag_getNext(action, running_actions->offset);
245 action = xbt_swag_getNext(action, running_actions->offset)) {
246 value = lmm_variable_getvalue(VARIABLE(action));
248 if (action->remains > 0)
249 value = action->remains / value;
254 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
257 if ((action->max_duration >= 0) && (action->max_duration < min)) {
258 min = action->max_duration;
259 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
262 XBT_DEBUG("min value : %f", min);
268 XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
269 XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
270 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
271 XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
272 XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
273 XBT_LOG_EXTERNAL_CATEGORY(surf_network);
274 XBT_LOG_EXTERNAL_CATEGORY(surf_trace);
275 XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
276 XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
277 XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
278 XBT_LOG_EXTERNAL_CATEGORY(surf_config);
279 XBT_LOG_EXTERNAL_CATEGORY(surf_route);
282 XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
285 void surf_init(int *argc, char **argv)
287 XBT_DEBUG("Create all Libs");
288 host_lib = xbt_lib_new();
289 link_lib = xbt_lib_new();
290 as_router_lib = xbt_lib_new();
292 XBT_DEBUG("ADD ROUTING LEVEL");
293 ROUTING_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_free);
294 ROUTING_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_free);
296 XBT_DEBUG("ADD SURF LEVELS");
297 SURF_CPU_LEVEL = xbt_lib_add_level(host_lib,surf_resource_free);
298 SURF_WKS_LEVEL = xbt_lib_add_level(host_lib,surf_resource_free);
299 SURF_LINK_LEVEL = xbt_lib_add_level(link_lib,surf_resource_free);
301 /* Connect our log channels: that must be done manually under windows */
302 XBT_LOG_CONNECT(surf_cpu, surf);
303 XBT_LOG_CONNECT(surf_kernel, surf);
304 XBT_LOG_CONNECT(surf_lagrange, surf);
305 XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
306 XBT_LOG_CONNECT(surf_maxmin, surf);
307 XBT_LOG_CONNECT(surf_network, surf);
308 XBT_LOG_CONNECT(surf_trace, surf);
309 XBT_LOG_CONNECT(surf_parse, surf);
310 XBT_LOG_CONNECT(surf_timer, surf);
311 XBT_LOG_CONNECT(surf_workstation, surf);
312 XBT_LOG_CONNECT(surf_config, surf);
313 XBT_LOG_CONNECT(surf_route, surf);
316 XBT_LOG_CONNECT(surf_network_gtnets, surf);
319 xbt_init(argc, argv);
321 model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
323 history = tmgr_history_new();
325 surf_config_init(argc, argv);
332 # define FILE_DELIM "\\"
334 # define FILE_DELIM "/" /* FIXME: move to better location */
337 FILE *surf_fopen(const char *name, const char *mode)
340 char *path_elm = NULL;
346 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
347 return fopen(name, mode);
349 /* search relative files in the path */
350 xbt_dynar_foreach(surf_path, cpt, path_elm) {
351 buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
352 file = fopen(buff, mode);
364 surf_model_t model = NULL;
366 surf_config_finalize();
368 xbt_dynar_foreach(model_list, iter, model)
369 model->model_private->finalize();
370 xbt_dynar_free(&model_list);
373 lmm_system_free(maxmin_system);
374 maxmin_system = NULL;
377 tmgr_history_free(history);
382 xbt_dynar_free(&surf_path);
384 xbt_lib_free(&host_lib);
385 xbt_lib_free(&link_lib);
386 xbt_lib_free(&as_router_lib);
390 surf_parse_lex_destroy();
391 surf_parse_free_callbacks();
393 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
396 void surf_presolve(void)
398 double next_event_date = -1.0;
399 tmgr_trace_event_t event = NULL;
401 surf_resource_t resource = NULL;
402 surf_model_t model = NULL;
406 ("First Run! Let's \"purge\" events and put models in the right state");
407 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
408 if (next_event_date > NOW)
411 tmgr_history_get_next_event_leq(history, next_event_date,
413 (void **) &resource))) {
414 resource->model->model_private->update_resource_state(resource,
419 xbt_dynar_foreach(model_list, iter, model)
420 model->model_private->update_actions_state(NOW, 0.0);
423 double surf_solve(double max_date)
425 double min = -1.0; /* duration */
426 double next_event_date = -1.0;
427 double model_next_action_end = -1.0;
429 surf_resource_t resource = NULL;
430 surf_model_t model = NULL;
431 tmgr_trace_event_t event = NULL;
434 if (max_date != -1.0 && max_date != NOW) {
435 min = max_date - NOW;
438 XBT_DEBUG("Looking for next action end for all models except NS3");
439 xbt_dynar_foreach(model_list, iter, model) {
440 if(strcmp(model->name,"network NS3") ){
441 XBT_DEBUG("Running for Resource [%s]", model->name);
442 model_next_action_end = model->model_private->share_resources(NOW);
443 XBT_DEBUG("Resource [%s] : next action end = %f",
444 model->name, model_next_action_end);
445 if (((min < 0.0) || (model_next_action_end < min))
446 && (model_next_action_end >= 0.0))
447 min = model_next_action_end;
451 XBT_DEBUG("Min for resources (except NS3) : %f", min);
453 XBT_DEBUG("Looking for next trace event");
456 XBT_DEBUG("Next TRACE event : %f", next_event_date);
458 next_event_date = tmgr_history_next_date(history);
460 if(surf_network_model->name && !strcmp(surf_network_model->name,"network NS3")){
461 if(next_event_date!=-1.0 && min!=-1.0) {
462 min = MIN(next_event_date - NOW, min);
464 min = MAX(next_event_date - NOW, min);
467 XBT_DEBUG("Run for NS3 at most %f", min);
468 // run until min or next flow
469 model_next_action_end = surf_network_model->model_private->share_resources(min);
471 XBT_DEBUG("Min for NS3 : %f", model_next_action_end);
472 if(model_next_action_end>=0.0)
473 min = model_next_action_end;
476 if (next_event_date == -1.0) break;
478 if ((min != -1.0) && (next_event_date > NOW + min)) break;
480 XBT_DEBUG("Updating models");
482 tmgr_history_get_next_event_leq(history, next_event_date,
484 (void **) &resource))) {
485 if (resource->model->model_private->resource_used(resource)) {
486 min = next_event_date - NOW;
488 ("This event will modify model state. Next event set to %f",
491 /* update state of model_obj according to new value. Does not touch lmm.
492 It will be modified if needed when updating actions */
493 XBT_DEBUG("Calling update_resource_state for resource %s with min %lf",
494 resource->model->name, min);
495 resource->model->model_private->update_resource_state(resource,
501 /* FIXME: Moved this test to here to avoid stoping simulation if there are actions running on cpus and all cpus are with availability = 0.
502 * This may cause an infinite loop if one cpu has a trace with periodicity = 0 and the other a trace with periodicity > 0.
503 * The options are: all traces with same periodicity(0 or >0) or we need to change the way how the events are managed */
507 XBT_DEBUG("Duration set to %f", min);
511 xbt_dynar_foreach(model_list, iter, model)
512 model->model_private->update_actions_state(NOW, min);
515 TRACE_paje_dump_buffer (0);
521 XBT_INLINE double surf_get_clock(void)