src/surf/network.c

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
   4
   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. */
   7
   8 #include "network_private.h"
   9 #include "xbt/log.h"
  10
  11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
  12                                 "Logging specific to the SURF network module");
  13
  14 surf_network_model_t surf_network_model = NULL;
  15 static lmm_system_t network_maxmin_system = NULL;
  16 static void (*network_solve) (lmm_system_t) = NULL;
  17
  18 xbt_dict_t link_set = NULL;
  19 xbt_dict_t network_card_set = NULL;
  20
  21 int card_number = 0;
  22 link_CM02_t **routing_table = NULL;
  23 int *routing_table_size = NULL;
  24 static link_CM02_t loopback = NULL;
  25
  26 static void create_routing_table(void)
  27 {
  28   routing_table =
  29       xbt_new0(link_CM02_t *, card_number * card_number);
  30   routing_table_size = xbt_new0(int, card_number * card_number);
  31 }
  32
  33 static void link_free(void *nw_link)
  34 {
  35   free(((link_CM02_t) nw_link)->name);
  36   free(nw_link);
  37 }
  38
  39 static link_CM02_t link_new(char *name,
  40                                             double bw_initial,
  41                                             tmgr_trace_t bw_trace,
  42                                             double lat_initial,
  43                                             tmgr_trace_t lat_trace,
  44                                             e_surf_link_state_t
  45                                             state_initial,
  46                                             tmgr_trace_t state_trace,
  47                                             e_surf_link_sharing_policy_t
  48                                             policy, xbt_dict_t properties)
  49 {
  50   link_CM02_t nw_link = xbt_new0(s_link_CM02_t, 1);
  51
  52
  53   nw_link->model = (surf_model_t) surf_network_model;
  54   nw_link->name = name;
  55   nw_link->bw_current = bw_initial;
  56   if (bw_trace)
  57     nw_link->bw_event =
  58         tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
  59   nw_link->lat_current = lat_initial;
  60   if (lat_trace)
  61     nw_link->lat_event =
  62         tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
  63   nw_link->state_current = state_initial;
  64   if (state_trace)
  65     nw_link->state_event =
  66         tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
  67
  68   nw_link->constraint =
  69       lmm_constraint_new(network_maxmin_system, nw_link,
  70                          nw_link->bw_current);
  71
  72   if (policy == SURF_LINK_FATPIPE)
  73     lmm_constraint_shared(nw_link->constraint);
  74
  75   nw_link->properties = properties;
  76
  77   current_property_set = properties;
  78
  79   xbt_dict_set(link_set, name, nw_link, link_free);
  80
  81   return nw_link;
  82 }
  83
  84 static void network_card_free(void *nw_card)
  85 {
  86   free(((network_card_CM02_t) nw_card)->name);
  87   free(nw_card);
  88 }
  89
  90 static int network_card_new(const char *card_name)
  91 {
  92   network_card_CM02_t card =
  93       xbt_dict_get_or_null(network_card_set, card_name);
  94
  95   if (!card) {
  96     card = xbt_new0(s_network_card_CM02_t, 1);
  97     card->name = xbt_strdup(card_name);
  98     card->id = card_number++;
  99     xbt_dict_set(network_card_set, card_name, card, network_card_free);
 100   }
 101   return card->id;
 102 }
 103
 104 static void route_new(int src_id, int dst_id,
 105                       link_CM02_t * link_list, int nb_link)
 106 {
 107   ROUTE_SIZE(src_id, dst_id) = nb_link;
 108   ROUTE(src_id, dst_id) = link_list =
 109       xbt_realloc(link_list, sizeof(link_CM02_t) * nb_link);
 110 }
 111
 112 static void parse_link_init(void)
 113 {
 114   char *name_link;
 115   double bw_initial;
 116   tmgr_trace_t bw_trace;
 117   double lat_initial;
 118   tmgr_trace_t lat_trace;
 119   e_surf_link_state_t state_initial_link = SURF_LINK_ON;
 120   e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
 121   tmgr_trace_t state_trace;
 122
 123   name_link = xbt_strdup(A_surfxml_link_id);
 124   surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
 125   surf_parse_get_trace(&bw_trace, A_surfxml_link_bandwidth_file);
 126   surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
 127   surf_parse_get_trace(&lat_trace, A_surfxml_link_latency_file);
 128
 129   xbt_assert0((A_surfxml_link_state ==
 130                A_surfxml_link_state_ON)
 131               || (A_surfxml_link_state ==
 132                   A_surfxml_link_state_OFF), "Invalid state");
 133   if (A_surfxml_link_state == A_surfxml_link_state_ON)
 134     state_initial_link = SURF_LINK_ON;
 135   else if (A_surfxml_link_state ==
 136            A_surfxml_link_state_OFF)
 137     state_initial_link = SURF_LINK_OFF;
 138
 139   if (A_surfxml_link_sharing_policy ==
 140       A_surfxml_link_sharing_policy_SHARED)
 141     policy_initial_link = SURF_LINK_SHARED;
 142   else if (A_surfxml_link_sharing_policy ==
 143            A_surfxml_link_sharing_policy_FATPIPE)
 144     policy_initial_link = SURF_LINK_FATPIPE;
 145
 146   surf_parse_get_trace(&state_trace, A_surfxml_link_state_file);
 147
 148   link_new(name_link, bw_initial, bw_trace,
 149                    lat_initial, lat_trace, state_initial_link, state_trace,
 150                    policy_initial_link, xbt_dict_new());
 151
 152 }
 153
 154 static int nb_link;
 155 static int link_list_capacity;
 156 static link_CM02_t *link_list = NULL;
 157 static int src_id = -1;
 158 static int dst_id = -1;
 159
 160 static void parse_route_set_endpoints(void)
 161 {
 162
 163   src_id = network_card_new(A_surfxml_route_src);
 164   dst_id = network_card_new(A_surfxml_route_dst);
 165   nb_link = 0;
 166   link_list_capacity = 20;
 167   link_list = xbt_new(link_CM02_t, link_list_capacity);
 168 }
 169
 170 static void parse_route_elem(void)
 171 {
 172
 173   if (nb_link == link_list_capacity) {
 174     link_list_capacity *= 2;
 175     link_list =
 176         xbt_realloc(link_list,
 177                     (link_list_capacity) * sizeof(link_CM02_t));
 178   }
 179   link_list[nb_link++] =
 180       xbt_dict_get_or_null(link_set, A_surfxml_link_c_ctn_id);
 181 }
 182
 183 static void parse_route_set_route(void)
 184 {
 185   route_new(src_id, dst_id, link_list, nb_link);
 186 }
 187
 188 static void parse_file(const char *file)
 189 {
 190   int i;
 191 /*
 192   surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
 193   surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
 194   surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
 195   surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_route_elem);
 196   surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
 197 */
 198   /* Figuring out the network links */
 199   surf_parse_reset_parser();
 200   surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
 201   surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
 202   surf_parse_open(file);
 203   xbt_assert1((!surf_parse()), "Parse error in %s", file);
 204   surf_parse_close();
 205
 206   /* Figuring out the network cards used */
 207   surf_parse_reset_parser();
 208   surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
 209   surf_parse_open(file);
 210   xbt_assert1((!surf_parse()), "Parse error in %s", file);
 211   surf_parse_close();
 212
 213   create_routing_table();
 214
 215   /* Building the routes */
 216   surf_parse_reset_parser();
 217   surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
 218   surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_route_elem);
 219   surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
 220   surf_parse_open(file);
 221   xbt_assert1((!surf_parse()), "Parse error in %s", file);
 222   surf_parse_close();
 223
 224   /* Adding loopback if needed */
 225
 226   for (i = 0; i < card_number; i++)
 227     if (!ROUTE_SIZE(i, i)) {
 228       if (!loopback)
 229         loopback = link_new(xbt_strdup("__MSG_loopback__"),
 230                                     498000000, NULL, 0.000015, NULL,
 231                                     SURF_LINK_ON, NULL,
 232                                     SURF_LINK_FATPIPE,NULL);
 233       ROUTE_SIZE(i, i) = 1;
 234       ROUTE(i, i) = xbt_new0(link_CM02_t, 1);
 235       ROUTE(i, i)[0] = loopback;
 236     }
 237 }
 238
 239 static void *name_service(const char *name)
 240 {
 241   network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
 242   return card;
 243 }
 244
 245 static const char *get_resource_name(void *resource_id)
 246 {
 247   return ((network_card_CM02_t) resource_id)->name;
 248 }
 249
 250 static int resource_used(void *resource_id)
 251 {
 252   return lmm_constraint_used(network_maxmin_system,
 253                              ((link_CM02_t) resource_id)->
 254                              constraint);
 255 }
 256
 257 static int action_free(surf_action_t action)
 258 {
 259   action->using--;
 260   if (!action->using) {
 261     xbt_swag_remove(action, action->state_set);
 262     if (((surf_action_network_CM02_t) action)->variable)
 263       lmm_variable_free(network_maxmin_system,
 264                         ((surf_action_network_CM02_t) action)->variable);
 265     free(action);
 266     return 1;
 267   }
 268   return 0;
 269 }
 270
 271 static void action_use(surf_action_t action)
 272 {
 273   action->using++;
 274 }
 275
 276 static void action_cancel(surf_action_t action)
 277 {
 278   return;
 279 }
 280
 281 static void action_recycle(surf_action_t action)
 282 {
 283   return;
 284 }
 285
 286 static void action_change_state(surf_action_t action,
 287                                 e_surf_action_state_t state)
 288 {
 289 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 290 /*     if(((surf_action_network_CM02_t)action)->variable) { */
 291 /*       lmm_variable_disable(network_maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
 292 /*       ((surf_action_network_CM02_t)action)->variable = NULL; */
 293 /*     } */
 294
 295   surf_action_change_state(action, state);
 296   return;
 297 }
 298
 299 static double share_resources(double now)
 300 {
 301   s_surf_action_network_CM02_t s_action;
 302   surf_action_network_CM02_t action = NULL;
 303   xbt_swag_t running_actions =
 304       surf_network_model->common_public->states.running_action_set;
 305   double min;
 306
 307   min = generic_maxmin_share_resources(running_actions,
 308                                        xbt_swag_offset(s_action,
 309                                                        variable),
 310                                        network_maxmin_system,
 311                                        network_solve);
 312
 313   xbt_swag_foreach(action, running_actions) {
 314     if (action->latency > 0) {
 315       if (min < 0)
 316         min = action->latency;
 317       else if (action->latency < min)
 318         min = action->latency;
 319     }
 320   }
 321
 322   return min;
 323 }
 324
 325 static void update_actions_state(double now, double delta)
 326 {
 327   double deltap = 0.0;
 328   surf_action_network_CM02_t action = NULL;
 329   surf_action_network_CM02_t next_action = NULL;
 330   xbt_swag_t running_actions =
 331       surf_network_model->common_public->states.running_action_set;
 332   /*
 333      xbt_swag_t failed_actions =
 334      surf_network_model->common_public->states.failed_action_set;
 335    */
 336
 337   xbt_swag_foreach_safe(action, next_action, running_actions) {
 338     deltap = delta;
 339     if (action->latency > 0) {
 340       if (action->latency > deltap) {
 341         double_update(&(action->latency), deltap);
 342         deltap = 0.0;
 343       } else {
 344         double_update(&(deltap), action->latency);
 345         action->latency = 0.0;
 346       }
 347       if ((action->latency == 0.0) && !(action->suspended))
 348         lmm_update_variable_weight(network_maxmin_system, action->variable,
 349                                    action->lat_current);
 350     }
 351     double_update(&(action->generic_action.remains),
 352                   lmm_variable_getvalue(action->variable) * deltap);
 353     if (action->generic_action.max_duration != NO_MAX_DURATION)
 354       double_update(&(action->generic_action.max_duration), delta);
 355
 356     /*   if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
 357
 358     if ((action->generic_action.remains <= 0) &&
 359         (lmm_get_variable_weight(action->variable) > 0)) {
 360       action->generic_action.finish = surf_get_clock();
 361       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 362     } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
 363                (action->generic_action.max_duration <= 0)) {
 364       action->generic_action.finish = surf_get_clock();
 365       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 366     } else {                    /* Need to check that none of the model has failed */
 367       lmm_constraint_t cnst = NULL;
 368       int i = 0;
 369       link_CM02_t nw_link = NULL;
 370
 371       while ((cnst =
 372               lmm_get_cnst_from_var(network_maxmin_system,
 373                                     action->variable, i++))) {
 374         nw_link = lmm_constraint_id(cnst);
 375         if (nw_link->state_current == SURF_LINK_OFF) {
 376           action->generic_action.finish = surf_get_clock();
 377           action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
 378           break;
 379         }
 380       }
 381     }
 382   }
 383
 384   return;
 385 }
 386
 387 static void update_resource_state(void *id,
 388                                   tmgr_trace_event_t event_type,
 389                                   double value)
 390 {
 391   link_CM02_t nw_link = id;
 392   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
 393   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
 394   /*     value, event_type); */
 395
 396   if (event_type == nw_link->bw_event) {
 397     nw_link->bw_current = value;
 398     lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
 399                                 nw_link->bw_current);
 400   } else if (event_type == nw_link->lat_event) {
 401     double delta = value - nw_link->lat_current;
 402     lmm_variable_t var = NULL;
 403     surf_action_network_CM02_t action = NULL;
 404
 405     nw_link->lat_current = value;
 406     while (lmm_get_var_from_cnst
 407            (network_maxmin_system, nw_link->constraint, &var)) {
 408       action = lmm_variable_id(var);
 409       action->lat_current += delta;
 410       if (action->rate < 0)
 411         lmm_update_variable_bound(network_maxmin_system, action->variable,
 412                                   SG_TCP_CTE_GAMMA / (2.0 *
 413                                                       action->
 414                                                       lat_current));
 415       else
 416         lmm_update_variable_bound(network_maxmin_system, action->variable,
 417                                   min(action->rate,
 418                                       SG_TCP_CTE_GAMMA / (2.0 *
 419                                                           action->
 420                                                           lat_current)));
 421       if (!(action->suspended))
 422         lmm_update_variable_weight(network_maxmin_system, action->variable,
 423                                    action->lat_current);
 424       lmm_update_variable_latency(network_maxmin_system, action->variable,
 425                                   delta);
 426     }
 427   } else if (event_type == nw_link->state_event) {
 428     if (value > 0)
 429       nw_link->state_current = SURF_LINK_ON;
 430     else
 431       nw_link->state_current = SURF_LINK_OFF;
 432   } else {
 433     CRITICAL0("Unknown event ! \n");
 434     xbt_abort();
 435   }
 436
 437   return;
 438 }
 439
 440 static surf_action_t communicate(void *src, void *dst, double size,
 441                                  double rate)
 442 {
 443   surf_action_network_CM02_t action = NULL;
 444   network_card_CM02_t card_src = src;
 445   network_card_CM02_t card_dst = dst;
 446   int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
 447   link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
 448   int i;
 449
 450   XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
 451   xbt_assert2(route_size,
 452               "You're trying to send data from %s to %s but there is no connexion between these two cards.",
 453               card_src->name, card_dst->name);
 454
 455   action = xbt_new0(s_surf_action_network_CM02_t, 1);
 456
 457   action->generic_action.using = 1;
 458   action->generic_action.cost = size;
 459   action->generic_action.remains = size;
 460   action->generic_action.max_duration = NO_MAX_DURATION;
 461   action->generic_action.start = surf_get_clock();
 462   action->generic_action.finish = -1.0;
 463   action->generic_action.model_type =
 464       (surf_model_t) surf_network_model;
 465   action->suspended = 0;        /* Should be useless because of the
 466                                    calloc but it seems to help valgrind... */
 467   action->generic_action.state_set =
 468       surf_network_model->common_public->states.running_action_set;
 469
 470   xbt_swag_insert(action, action->generic_action.state_set);
 471   action->rate = rate;
 472
 473   action->latency = 0.0;
 474   for (i = 0; i < route_size; i++)
 475     action->latency += route[i]->lat_current;
 476   action->lat_current = action->latency;
 477
 478   if (action->latency > 0)
 479     action->variable =
 480         lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
 481                          route_size);
 482   else
 483     action->variable =
 484         lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
 485                          route_size);
 486
 487   if (action->rate < 0) {
 488     if (action->lat_current > 0)
 489       lmm_update_variable_bound(network_maxmin_system, action->variable,
 490                                 SG_TCP_CTE_GAMMA / (2.0 *
 491                                                     action->lat_current));
 492     else
 493       lmm_update_variable_bound(network_maxmin_system, action->variable,
 494                                 -1.0);
 495   } else {
 496     if (action->lat_current > 0)
 497       lmm_update_variable_bound(network_maxmin_system, action->variable,
 498                                 min(action->rate,
 499                                     SG_TCP_CTE_GAMMA / (2.0 *
 500                                                         action->
 501                                                         lat_current)));
 502     else
 503       lmm_update_variable_bound(network_maxmin_system, action->variable,
 504                                 action->rate);
 505   }
 506   lmm_update_variable_latency(network_maxmin_system, action->variable,
 507                               action->latency);
 508
 509   for (i = 0; i < route_size; i++)
 510     lmm_expand(network_maxmin_system, route[i]->constraint,
 511                action->variable, 1.0);
 512   XBT_OUT;
 513
 514   return (surf_action_t) action;
 515 }
 516
 517 /* returns an array of link_CM02_t */
 518 static const void **get_route(void *src, void *dst)
 519 {
 520   network_card_CM02_t card_src = src;
 521   network_card_CM02_t card_dst = dst;
 522   return (const void **) ROUTE(card_src->id, card_dst->id);
 523 }
 524
 525 static int get_route_size(void *src, void *dst)
 526 {
 527   network_card_CM02_t card_src = src;
 528   network_card_CM02_t card_dst = dst;
 529   return ROUTE_SIZE(card_src->id, card_dst->id);
 530 }
 531
 532 static const char *get_link_name(const void *link)
 533 {
 534   return ((link_CM02_t) link)->name;
 535 }
 536
 537 static double get_link_bandwidth(const void *link)
 538 {
 539   return ((link_CM02_t) link)->bw_current;
 540 }
 541
 542 static double get_link_latency(const void *link)
 543 {
 544   return ((link_CM02_t) link)->lat_current;
 545 }
 546
 547 static xbt_dict_t get_properties(void *link)
 548 {
 549  return ((link_CM02_t) link)->properties;
 550 }
 551
 552 static void action_suspend(surf_action_t action)
 553 {
 554   ((surf_action_network_CM02_t) action)->suspended = 1;
 555   lmm_update_variable_weight(network_maxmin_system,
 556                              ((surf_action_network_CM02_t) action)->
 557                              variable, 0.0);
 558 }
 559
 560 static void action_resume(surf_action_t action)
 561 {
 562   if (((surf_action_network_CM02_t) action)->suspended) {
 563     lmm_update_variable_weight(network_maxmin_system,
 564                                ((surf_action_network_CM02_t) action)->
 565                                variable,
 566                                ((surf_action_network_CM02_t) action)->
 567                                lat_current);
 568     ((surf_action_network_CM02_t) action)->suspended = 0;
 569   }
 570 }
 571
 572 static int action_is_suspended(surf_action_t action)
 573 {
 574   return ((surf_action_network_CM02_t) action)->suspended;
 575 }
 576
 577 static void action_set_max_duration(surf_action_t action, double duration)
 578 {
 579   action->max_duration = duration;
 580 }
 581
 582 static void finalize(void)
 583 {
 584   int i, j;
 585
 586   xbt_dict_free(&network_card_set);
 587   xbt_dict_free(&link_set);
 588   xbt_swag_free(surf_network_model->common_public->states.
 589                 ready_action_set);
 590   xbt_swag_free(surf_network_model->common_public->states.
 591                 running_action_set);
 592   xbt_swag_free(surf_network_model->common_public->states.
 593                 failed_action_set);
 594   xbt_swag_free(surf_network_model->common_public->states.
 595                 done_action_set);
 596   free(surf_network_model->common_public);
 597   free(surf_network_model->common_private);
 598   free(surf_network_model->extension_public);
 599
 600   free(surf_network_model);
 601   surf_network_model = NULL;
 602
 603   loopback = NULL;
 604   for (i = 0; i < card_number; i++)
 605     for (j = 0; j < card_number; j++)
 606       free(ROUTE(i, j));
 607   free(routing_table);
 608   routing_table = NULL;
 609   free(routing_table_size);
 610   routing_table_size = NULL;
 611   card_number = 0;
 612 }
 613
 614 static void surf_network_model_init_internal(void)
 615 {
 616   s_surf_action_t action;
 617
 618   surf_network_model = xbt_new0(s_surf_network_model_t, 1);
 619
 620   surf_network_model->common_private =
 621       xbt_new0(s_surf_model_private_t, 1);
 622   surf_network_model->common_public =
 623       xbt_new0(s_surf_model_public_t, 1);
 624   surf_network_model->extension_public =
 625       xbt_new0(s_surf_network_model_extension_public_t, 1);
 626
 627   surf_network_model->common_public->states.ready_action_set =
 628       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 629   surf_network_model->common_public->states.running_action_set =
 630       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 631   surf_network_model->common_public->states.failed_action_set =
 632       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 633   surf_network_model->common_public->states.done_action_set =
 634       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 635
 636   surf_network_model->common_public->name_service = name_service;
 637   surf_network_model->common_public->get_resource_name =
 638       get_resource_name;
 639   surf_network_model->common_public->action_get_state =
 640       surf_action_get_state;
 641   surf_network_model->common_public->action_get_start_time =
 642       surf_action_get_start_time;
 643   surf_network_model->common_public->action_get_finish_time =
 644       surf_action_get_finish_time;
 645   surf_network_model->common_public->action_free = action_free;
 646   surf_network_model->common_public->action_use = action_use;
 647   surf_network_model->common_public->action_cancel = action_cancel;
 648   surf_network_model->common_public->action_recycle = action_recycle;
 649   surf_network_model->common_public->action_change_state =
 650       action_change_state;
 651   surf_network_model->common_public->action_set_data =
 652       surf_action_set_data;
 653   surf_network_model->common_public->name = "network";
 654
 655   surf_network_model->common_private->resource_used = resource_used;
 656   surf_network_model->common_private->share_resources = share_resources;
 657   surf_network_model->common_private->update_actions_state =
 658       update_actions_state;
 659   surf_network_model->common_private->update_resource_state =
 660       update_resource_state;
 661   surf_network_model->common_private->finalize = finalize;
 662
 663   surf_network_model->common_public->suspend = action_suspend;
 664   surf_network_model->common_public->resume = action_resume;
 665   surf_network_model->common_public->is_suspended = action_is_suspended;
 666   surf_cpu_model->common_public->set_max_duration =
 667       action_set_max_duration;
 668
 669   surf_network_model->extension_public->communicate = communicate;
 670   surf_network_model->extension_public->get_route = get_route;
 671   surf_network_model->extension_public->get_route_size = get_route_size;
 672   surf_network_model->extension_public->get_link_name = get_link_name;
 673   surf_network_model->extension_public->get_link_bandwidth =
 674       get_link_bandwidth;
 675   surf_network_model->extension_public->get_link_latency =
 676       get_link_latency;
 677
 678   surf_network_model->common_public->get_properties =  get_properties;
 679
 680   link_set = xbt_dict_new();
 681   network_card_set = xbt_dict_new();
 682
 683   if (!network_maxmin_system)
 684     network_maxmin_system = lmm_system_new();
 685 }
 686
 687 /***************************************************************************/
 688 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
 689 /***************************************************************************/
 690 /* @TechReport{      rr-lip2002-40, */
 691 /*   author        = {Henri Casanova and Loris Marchal}, */
 692 /*   institution   = {LIP}, */
 693 /*   title         = {A Network Model for Simulation of Grid Application}, */
 694 /*   number        = {2002-40}, */
 695 /*   month         = {oct}, */
 696 /*   year          = {2002} */
 697 /* } */
 698 void surf_network_model_init_CM02(const char *filename)
 699 {
 700
 701   if (surf_network_model)
 702     return;
 703   surf_network_model_init_internal();
 704   parse_file(filename);
 705   xbt_dynar_push(model_list, &surf_network_model);
 706   network_solve = lmm_solve;
 707
 708   update_model_description(surf_network_model_description,
 709                               surf_network_model_description_size,
 710                               "CM02",
 711                               (surf_model_t) surf_network_model);
 712 }
 713
 714 void surf_network_model_init_Reno(const char *filename)
 715 {
 716   if (surf_network_model)
 717     return;
 718   surf_network_model_init_internal();
 719   parse_file(filename);
 720
 721   xbt_dynar_push(model_list, &surf_network_model);
 722   lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
 723                                     func_reno_fpi);
 724   network_solve = lagrange_solve;
 725
 726   update_model_description(surf_network_model_description,
 727                               surf_network_model_description_size,
 728                               "Reno",
 729                               (surf_model_t) surf_network_model);
 730 }
 731
 732 void surf_network_model_init_Vegas(const char *filename)
 733 {
 734   if (surf_network_model)
 735     return;
 736   surf_network_model_init_internal();
 737   parse_file(filename);
 738
 739   xbt_dynar_push(model_list, &surf_network_model);
 740   lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
 741                                     func_vegas_fpi);
 742   network_solve = lagrange_solve;
 743
 744   update_model_description(surf_network_model_description,
 745                               surf_network_model_description_size,
 746                               "Vegas",
 747                               (surf_model_t) surf_network_model);
 748 }
 749
 750 #ifdef HAVE_SDP
 751 void surf_network_model_init_SDP(const char *filename)
 752 {
 753   if (surf_network_model)
 754     return;
 755   surf_network_model_init_internal();
 756   parse_file(filename);
 757
 758   xbt_dynar_push(model_list, &surf_network_model);
 759   network_solve = sdp_solve;
 760
 761   update_model_description(surf_network_model_description,
 762                               surf_network_model_description_size,
 763                               "SDP",
 764                               (surf_model_t) surf_network_model);
 765 }
 766 #endif