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 network_link_set = NULL;
  19 xbt_dict_t network_card_set = NULL;
  20
  21 int card_number = 0;
  22 network_link_CM02_t **routing_table = NULL;
  23 int *routing_table_size = NULL;
  24 static network_link_CM02_t loopback = NULL;
  25
  26 static void create_routing_table(void)
  27 {
  28   routing_table =
  29       xbt_new0(network_link_CM02_t *, card_number * card_number);
  30   routing_table_size = xbt_new0(int, card_number * card_number);
  31 }
  32
  33 static void network_link_free(void *nw_link)
  34 {
  35   free(((network_link_CM02_t) nw_link)->name);
  36   free(nw_link);
  37 }
  38
  39 static network_link_CM02_t network_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_network_link_state_t
  45                                             state_initial,
  46                                             tmgr_trace_t state_trace,
  47                                             e_surf_network_link_sharing_policy_t
  48                                             policy)
  49 {
  50   network_link_CM02_t nw_link = xbt_new0(s_network_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_NETWORK_LINK_FATPIPE)
  73     lmm_constraint_shared(nw_link->constraint);
  74
  75   xbt_dict_set(network_link_set, name, nw_link, network_link_free);
  76
  77   return nw_link;
  78 }
  79
  80 static void network_card_free(void *nw_card)
  81 {
  82   free(((network_card_CM02_t) nw_card)->name);
  83   free(nw_card);
  84 }
  85
  86 static int network_card_new(const char *card_name)
  87 {
  88   network_card_CM02_t card =
  89       xbt_dict_get_or_null(network_card_set, card_name);
  90
  91   if (!card) {
  92     card = xbt_new0(s_network_card_CM02_t, 1);
  93     card->name = xbt_strdup(card_name);
  94     card->id = card_number++;
  95     xbt_dict_set(network_card_set, card_name, card, network_card_free);
  96   }
  97   return card->id;
  98 }
  99
 100 static void route_new(int src_id, int dst_id,
 101                       network_link_CM02_t * link_list, int nb_link)
 102 {
 103   ROUTE_SIZE(src_id, dst_id) = nb_link;
 104   ROUTE(src_id, dst_id) = link_list =
 105       xbt_realloc(link_list, sizeof(network_link_CM02_t) * nb_link);
 106 }
 107
 108 static void parse_network_link(void)
 109 {
 110   char *name;
 111   double bw_initial;
 112   tmgr_trace_t bw_trace;
 113   double lat_initial;
 114   tmgr_trace_t lat_trace;
 115   e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
 116   e_surf_network_link_sharing_policy_t policy_initial =
 117       SURF_NETWORK_LINK_SHARED;
 118   tmgr_trace_t state_trace;
 119
 120   name = xbt_strdup(A_surfxml_network_link_name);
 121   surf_parse_get_double(&bw_initial, A_surfxml_network_link_bandwidth);
 122   surf_parse_get_trace(&bw_trace, A_surfxml_network_link_bandwidth_file);
 123   surf_parse_get_double(&lat_initial, A_surfxml_network_link_latency);
 124   surf_parse_get_trace(&lat_trace, A_surfxml_network_link_latency_file);
 125
 126   xbt_assert0((A_surfxml_network_link_state ==
 127                A_surfxml_network_link_state_ON)
 128               || (A_surfxml_network_link_state ==
 129                   A_surfxml_network_link_state_OFF), "Invalid state");
 130   if (A_surfxml_network_link_state == A_surfxml_network_link_state_ON)
 131     state_initial = SURF_NETWORK_LINK_ON;
 132   else if (A_surfxml_network_link_state ==
 133            A_surfxml_network_link_state_OFF)
 134     state_initial = SURF_NETWORK_LINK_OFF;
 135
 136   if (A_surfxml_network_link_sharing_policy ==
 137       A_surfxml_network_link_sharing_policy_SHARED)
 138     policy_initial = SURF_NETWORK_LINK_SHARED;
 139   else if (A_surfxml_network_link_sharing_policy ==
 140            A_surfxml_network_link_sharing_policy_FATPIPE)
 141     policy_initial = SURF_NETWORK_LINK_FATPIPE;
 142
 143   surf_parse_get_trace(&state_trace, A_surfxml_network_link_state_file);
 144
 145   network_link_new(name, bw_initial, bw_trace,
 146                    lat_initial, lat_trace, state_initial, state_trace,
 147                    policy_initial);
 148 }
 149
 150 static int nb_link;
 151 static int link_list_capacity;
 152 static network_link_CM02_t *link_list = NULL;
 153 static int src_id = -1;
 154 static int dst_id = -1;
 155
 156 static void parse_route_set_endpoints(void)
 157 {
 158   src_id = network_card_new(A_surfxml_route_src);
 159   dst_id = network_card_new(A_surfxml_route_dst);
 160   nb_link = 0;
 161   link_list_capacity = 20;
 162   link_list = xbt_new(network_link_CM02_t, link_list_capacity);
 163 }
 164
 165 static void parse_route_elem(void)
 166 {
 167   if (nb_link == link_list_capacity) {
 168     link_list_capacity *= 2;
 169     link_list =
 170         xbt_realloc(link_list,
 171                     (link_list_capacity) * sizeof(network_link_CM02_t));
 172   }
 173   link_list[nb_link++] =
 174       xbt_dict_get_or_null(network_link_set, A_surfxml_route_element_name);
 175 }
 176
 177 static void parse_route_set_route(void)
 178 {
 179   route_new(src_id, dst_id, link_list, nb_link);
 180 }
 181
 182 static void parse_file(const char *file)
 183 {
 184   int i;
 185
 186   /* Figuring out the network links */
 187   surf_parse_reset_parser();
 188   ETag_surfxml_network_link_fun = parse_network_link;
 189   surf_parse_open(file);
 190   xbt_assert1((!surf_parse()), "Parse error in %s", file);
 191   surf_parse_close();
 192
 193   /* Figuring out the network cards used */
 194   surf_parse_reset_parser();
 195   STag_surfxml_route_fun = parse_route_set_endpoints;
 196   surf_parse_open(file);
 197   xbt_assert1((!surf_parse()), "Parse error in %s", file);
 198   surf_parse_close();
 199
 200   create_routing_table();
 201
 202   /* Building the routes */
 203   surf_parse_reset_parser();
 204   STag_surfxml_route_fun = parse_route_set_endpoints;
 205   ETag_surfxml_route_element_fun = parse_route_elem;
 206   ETag_surfxml_route_fun = parse_route_set_route;
 207   surf_parse_open(file);
 208   xbt_assert1((!surf_parse()), "Parse error in %s", file);
 209   surf_parse_close();
 210
 211   /* Adding loopback if needed */
 212
 213   for (i = 0; i < card_number; i++)
 214     if (!ROUTE_SIZE(i, i)) {
 215       if (!loopback)
 216         loopback = network_link_new(xbt_strdup("__MSG_loopback__"),
 217                                     498000000, NULL, 0.000015, NULL,
 218                                     SURF_NETWORK_LINK_ON, NULL,
 219                                     SURF_NETWORK_LINK_FATPIPE);
 220       ROUTE_SIZE(i, i) = 1;
 221       ROUTE(i, i) = xbt_new0(network_link_CM02_t, 1);
 222       ROUTE(i, i)[0] = loopback;
 223     }
 224 }
 225
 226 static void *name_service(const char *name)
 227 {
 228   network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
 229   return card;
 230 }
 231
 232 static const char *get_model_name(void *model_id)
 233 {
 234   return ((network_card_CM02_t) model_id)->name;
 235 }
 236
 237 static int model_used(void *model_id)
 238 {
 239   return lmm_constraint_used(network_maxmin_system,
 240                              ((network_link_CM02_t) model_id)->
 241                              constraint);
 242 }
 243
 244 static int action_free(surf_action_t action)
 245 {
 246   action->using--;
 247   if (!action->using) {
 248     xbt_swag_remove(action, action->state_set);
 249     if (((surf_action_network_CM02_t) action)->variable)
 250       lmm_variable_free(network_maxmin_system,
 251                         ((surf_action_network_CM02_t) action)->variable);
 252     free(action);
 253     return 1;
 254   }
 255   return 0;
 256 }
 257
 258 static void action_use(surf_action_t action)
 259 {
 260   action->using++;
 261 }
 262
 263 static void action_cancel(surf_action_t action)
 264 {
 265   return;
 266 }
 267
 268 static void action_recycle(surf_action_t action)
 269 {
 270   return;
 271 }
 272
 273 static void action_change_state(surf_action_t action,
 274                                 e_surf_action_state_t state)
 275 {
 276 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 277 /*     if(((surf_action_network_CM02_t)action)->variable) { */
 278 /*       lmm_variable_disable(network_maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
 279 /*       ((surf_action_network_CM02_t)action)->variable = NULL; */
 280 /*     } */
 281
 282   surf_action_change_state(action, state);
 283   return;
 284 }
 285
 286 static double share_models(double now)
 287 {
 288   s_surf_action_network_CM02_t s_action;
 289   surf_action_network_CM02_t action = NULL;
 290   xbt_swag_t running_actions =
 291       surf_network_model->common_public->states.running_action_set;
 292   double min;
 293
 294   min = generic_maxmin_share_models2(running_actions,
 295                                         xbt_swag_offset(s_action,
 296                                                         variable),
 297                                         network_maxmin_system,
 298                                         network_solve);
 299
 300   xbt_swag_foreach(action, running_actions) {
 301     if (action->latency > 0) {
 302       if (min < 0)
 303         min = action->latency;
 304       else if (action->latency < min)
 305         min = action->latency;
 306     }
 307   }
 308
 309   return min;
 310 }
 311
 312 static void update_actions_state(double now, double delta)
 313 {
 314   double deltap = 0.0;
 315   surf_action_network_CM02_t action = NULL;
 316   surf_action_network_CM02_t next_action = NULL;
 317   xbt_swag_t running_actions =
 318       surf_network_model->common_public->states.running_action_set;
 319   /*
 320      xbt_swag_t failed_actions =
 321      surf_network_model->common_public->states.failed_action_set;
 322    */
 323
 324   xbt_swag_foreach_safe(action, next_action, running_actions) {
 325     deltap = delta;
 326     if (action->latency > 0) {
 327       if (action->latency > deltap) {
 328         double_update(&(action->latency), deltap);
 329         deltap = 0.0;
 330       } else {
 331         double_update(&(deltap), action->latency);
 332         action->latency = 0.0;
 333       }
 334       if ((action->latency == 0.0) && !(action->suspended))
 335         lmm_update_variable_weight(network_maxmin_system, action->variable,
 336                                    action->lat_current);
 337     }
 338     double_update(&(action->generic_action.remains),
 339                   lmm_variable_getvalue(action->variable) * deltap);
 340     if (action->generic_action.max_duration != NO_MAX_DURATION)
 341       double_update(&(action->generic_action.max_duration), delta);
 342
 343     /*   if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
 344
 345     if ((action->generic_action.remains <= 0) &&
 346         (lmm_get_variable_weight(action->variable) > 0)) {
 347       action->generic_action.finish = surf_get_clock();
 348       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 349     } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
 350                (action->generic_action.max_duration <= 0)) {
 351       action->generic_action.finish = surf_get_clock();
 352       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 353     } else {                    /* Need to check that none of the model has failed */
 354       lmm_constraint_t cnst = NULL;
 355       int i = 0;
 356       network_link_CM02_t nw_link = NULL;
 357
 358       while ((cnst =
 359               lmm_get_cnst_from_var(network_maxmin_system,
 360                                     action->variable, i++))) {
 361         nw_link = lmm_constraint_id(cnst);
 362         if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
 363           action->generic_action.finish = surf_get_clock();
 364           action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
 365           break;
 366         }
 367       }
 368     }
 369   }
 370
 371   return;
 372 }
 373
 374 static void update_model_state(void *id,
 375                                   tmgr_trace_event_t event_type,
 376                                   double value)
 377 {
 378   network_link_CM02_t nw_link = id;
 379   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
 380   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
 381   /*     value, event_type); */
 382
 383   if (event_type == nw_link->bw_event) {
 384     nw_link->bw_current = value;
 385     lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
 386                                 nw_link->bw_current);
 387   } else if (event_type == nw_link->lat_event) {
 388     double delta = value - nw_link->lat_current;
 389     lmm_variable_t var = NULL;
 390     surf_action_network_CM02_t action = NULL;
 391
 392     nw_link->lat_current = value;
 393     while (lmm_get_var_from_cnst
 394            (network_maxmin_system, nw_link->constraint, &var)) {
 395       action = lmm_variable_id(var);
 396       action->lat_current += delta;
 397       if (action->rate < 0)
 398         lmm_update_variable_bound(network_maxmin_system, action->variable,
 399                                   SG_TCP_CTE_GAMMA / (2.0 *
 400                                                       action->
 401                                                       lat_current));
 402       else
 403         lmm_update_variable_bound(network_maxmin_system, action->variable,
 404                                   min(action->rate,
 405                                       SG_TCP_CTE_GAMMA / (2.0 *
 406                                                           action->
 407                                                           lat_current)));
 408       if (!(action->suspended))
 409         lmm_update_variable_weight(network_maxmin_system, action->variable,
 410                                    action->lat_current);
 411       lmm_update_variable_latency(network_maxmin_system, action->variable,
 412                                   delta);
 413     }
 414   } else if (event_type == nw_link->state_event) {
 415     if (value > 0)
 416       nw_link->state_current = SURF_NETWORK_LINK_ON;
 417     else
 418       nw_link->state_current = SURF_NETWORK_LINK_OFF;
 419   } else {
 420     CRITICAL0("Unknown event ! \n");
 421     xbt_abort();
 422   }
 423
 424   return;
 425 }
 426
 427 static surf_action_t communicate(void *src, void *dst, double size,
 428                                  double rate)
 429 {
 430   surf_action_network_CM02_t action = NULL;
 431   network_card_CM02_t card_src = src;
 432   network_card_CM02_t card_dst = dst;
 433   int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
 434   network_link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
 435   int i;
 436
 437   XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
 438   xbt_assert2(route_size,
 439               "You're trying to send data from %s to %s but there is no connexion between these two cards.",
 440               card_src->name, card_dst->name);
 441
 442   action = xbt_new0(s_surf_action_network_CM02_t, 1);
 443
 444   action->generic_action.using = 1;
 445   action->generic_action.cost = size;
 446   action->generic_action.remains = size;
 447   action->generic_action.max_duration = NO_MAX_DURATION;
 448   action->generic_action.start = surf_get_clock();
 449   action->generic_action.finish = -1.0;
 450   action->generic_action.model_type =
 451       (surf_model_t) surf_network_model;
 452   action->suspended = 0;        /* Should be useless because of the
 453                                    calloc but it seems to help valgrind... */
 454   action->generic_action.state_set =
 455       surf_network_model->common_public->states.running_action_set;
 456
 457   xbt_swag_insert(action, action->generic_action.state_set);
 458   action->rate = rate;
 459
 460   action->latency = 0.0;
 461   for (i = 0; i < route_size; i++)
 462     action->latency += route[i]->lat_current;
 463   action->lat_current = action->latency;
 464
 465   if (action->latency > 0)
 466     action->variable =
 467         lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
 468                          route_size);
 469   else
 470     action->variable =
 471         lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
 472                          route_size);
 473
 474   if (action->rate < 0) {
 475     if (action->lat_current > 0)
 476       lmm_update_variable_bound(network_maxmin_system, action->variable,
 477                                 SG_TCP_CTE_GAMMA / (2.0 *
 478                                                     action->lat_current));
 479     else
 480       lmm_update_variable_bound(network_maxmin_system, action->variable,
 481                                 -1.0);
 482   } else {
 483     if (action->lat_current > 0)
 484       lmm_update_variable_bound(network_maxmin_system, action->variable,
 485                                 min(action->rate,
 486                                     SG_TCP_CTE_GAMMA / (2.0 *
 487                                                         action->
 488                                                         lat_current)));
 489     else
 490       lmm_update_variable_bound(network_maxmin_system, action->variable,
 491                                 action->rate);
 492   }
 493   lmm_update_variable_latency(maxmin_system, action->variable,
 494                               action->latency);
 495
 496   for (i = 0; i < route_size; i++)
 497     lmm_expand(network_maxmin_system, route[i]->constraint,
 498                action->variable, 1.0);
 499   XBT_OUT;
 500
 501   return (surf_action_t) action;
 502 }
 503
 504 /* returns an array of network_link_CM02_t */
 505 static const void **get_route(void *src, void *dst)
 506 {
 507   network_card_CM02_t card_src = src;
 508   network_card_CM02_t card_dst = dst;
 509   return (const void **) ROUTE(card_src->id, card_dst->id);
 510 }
 511
 512 static int get_route_size(void *src, void *dst)
 513 {
 514   network_card_CM02_t card_src = src;
 515   network_card_CM02_t card_dst = dst;
 516   return ROUTE_SIZE(card_src->id, card_dst->id);
 517 }
 518
 519 static const char *get_link_name(const void *link)
 520 {
 521   return ((network_link_CM02_t) link)->name;
 522 }
 523
 524 static double get_link_bandwidth(const void *link)
 525 {
 526   return ((network_link_CM02_t) link)->bw_current;
 527 }
 528
 529 static double get_link_latency(const void *link)
 530 {
 531   return ((network_link_CM02_t) link)->lat_current;
 532 }
 533
 534 static void action_suspend(surf_action_t action)
 535 {
 536   ((surf_action_network_CM02_t) action)->suspended = 1;
 537   lmm_update_variable_weight(network_maxmin_system,
 538                              ((surf_action_network_CM02_t) action)->
 539                              variable, 0.0);
 540 }
 541
 542 static void action_resume(surf_action_t action)
 543 {
 544   if (((surf_action_network_CM02_t) action)->suspended) {
 545     lmm_update_variable_weight(network_maxmin_system,
 546                                ((surf_action_network_CM02_t) action)->
 547                                variable,
 548                                ((surf_action_network_CM02_t) action)->
 549                                lat_current);
 550     ((surf_action_network_CM02_t) action)->suspended = 0;
 551   }
 552 }
 553
 554 static int action_is_suspended(surf_action_t action)
 555 {
 556   return ((surf_action_network_CM02_t) action)->suspended;
 557 }
 558
 559 static void action_set_max_duration(surf_action_t action, double duration)
 560 {
 561   action->max_duration = duration;
 562 }
 563
 564 static void finalize(void)
 565 {
 566   int i, j;
 567
 568   xbt_dict_free(&network_card_set);
 569   xbt_dict_free(&network_link_set);
 570   xbt_swag_free(surf_network_model->common_public->states.
 571                 ready_action_set);
 572   xbt_swag_free(surf_network_model->common_public->states.
 573                 running_action_set);
 574   xbt_swag_free(surf_network_model->common_public->states.
 575                 failed_action_set);
 576   xbt_swag_free(surf_network_model->common_public->states.
 577                 done_action_set);
 578   free(surf_network_model->common_public);
 579   free(surf_network_model->common_private);
 580   free(surf_network_model->extension_public);
 581
 582   free(surf_network_model);
 583   surf_network_model = NULL;
 584
 585   loopback = NULL;
 586   for (i = 0; i < card_number; i++)
 587     for (j = 0; j < card_number; j++)
 588       free(ROUTE(i, j));
 589   free(routing_table);
 590   routing_table = NULL;
 591   free(routing_table_size);
 592   routing_table_size = NULL;
 593   card_number = 0;
 594 }
 595
 596 static void surf_network_model_init_internal(void)
 597 {
 598   s_surf_action_t action;
 599
 600   surf_network_model = xbt_new0(s_surf_network_model_t, 1);
 601
 602   surf_network_model->common_private =
 603       xbt_new0(s_surf_model_private_t, 1);
 604   surf_network_model->common_public =
 605       xbt_new0(s_surf_model_public_t, 1);
 606   surf_network_model->extension_public =
 607       xbt_new0(s_surf_network_model_extension_public_t, 1);
 608
 609   surf_network_model->common_public->states.ready_action_set =
 610       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 611   surf_network_model->common_public->states.running_action_set =
 612       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 613   surf_network_model->common_public->states.failed_action_set =
 614       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 615   surf_network_model->common_public->states.done_action_set =
 616       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 617
 618   surf_network_model->common_public->name_service = name_service;
 619   surf_network_model->common_public->get_model_name =
 620       get_model_name;
 621   surf_network_model->common_public->action_get_state =
 622       surf_action_get_state;
 623   surf_network_model->common_public->action_get_start_time =
 624       surf_action_get_start_time;
 625   surf_network_model->common_public->action_get_finish_time =
 626       surf_action_get_finish_time;
 627   surf_network_model->common_public->action_free = action_free;
 628   surf_network_model->common_public->action_use = action_use;
 629   surf_network_model->common_public->action_cancel = action_cancel;
 630   surf_network_model->common_public->action_recycle = action_recycle;
 631   surf_network_model->common_public->action_change_state =
 632       action_change_state;
 633   surf_network_model->common_public->action_set_data =
 634       surf_action_set_data;
 635   surf_network_model->common_public->name = "network";
 636
 637   surf_network_model->common_private->model_used = model_used;
 638   surf_network_model->common_private->share_models = share_models;
 639   surf_network_model->common_private->update_actions_state =
 640       update_actions_state;
 641   surf_network_model->common_private->update_model_state =
 642       update_model_state;
 643   surf_network_model->common_private->finalize = finalize;
 644
 645   surf_network_model->common_public->suspend = action_suspend;
 646   surf_network_model->common_public->resume = action_resume;
 647   surf_network_model->common_public->is_suspended = action_is_suspended;
 648   surf_cpu_model->common_public->set_max_duration =
 649       action_set_max_duration;
 650
 651   surf_network_model->extension_public->communicate = communicate;
 652   surf_network_model->extension_public->get_route = get_route;
 653   surf_network_model->extension_public->get_route_size = get_route_size;
 654   surf_network_model->extension_public->get_link_name = get_link_name;
 655   surf_network_model->extension_public->get_link_bandwidth =
 656       get_link_bandwidth;
 657   surf_network_model->extension_public->get_link_latency =
 658       get_link_latency;
 659
 660   network_link_set = xbt_dict_new();
 661   network_card_set = xbt_dict_new();
 662
 663   if (!network_maxmin_system)
 664     network_maxmin_system = lmm_system_new();
 665 }
 666
 667 /***************************************************************************/
 668 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
 669 /***************************************************************************/
 670 /* @TechReport{      rr-lip2002-40, */
 671 /*   author        = {Henri Casanova and Loris Marchal}, */
 672 /*   institution   = {LIP}, */
 673 /*   title         = {A Network Model for Simulation of Grid Application}, */
 674 /*   number        = {2002-40}, */
 675 /*   month         = {oct}, */
 676 /*   year          = {2002} */
 677 /* } */
 678 void surf_network_model_init_CM02(const char *filename)
 679 {
 680
 681   if (surf_network_model)
 682     return;
 683   surf_network_model_init_internal();
 684   parse_file(filename);
 685   xbt_dynar_push(model_list, &surf_network_model);
 686   network_solve = lmm_solve;
 687
 688   update_model_description(surf_network_model_description,
 689                               surf_network_model_description_size,
 690                               "CM02",
 691                               (surf_model_t) surf_network_model);
 692 }
 693
 694 void surf_network_model_init_Reno(const char *filename)
 695 {
 696   if (surf_network_model)
 697     return;
 698   surf_network_model_init_internal();
 699   parse_file(filename);
 700
 701   xbt_dynar_push(model_list, &surf_network_model);
 702   lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
 703                                     func_reno_fpi);
 704   network_solve = lagrange_solve;
 705
 706   update_model_description(surf_network_model_description,
 707                               surf_network_model_description_size,
 708                               "Reno",
 709                               (surf_model_t) surf_network_model);
 710 }
 711
 712 void surf_network_model_init_Vegas(const char *filename)
 713 {
 714   if (surf_network_model)
 715     return;
 716   surf_network_model_init_internal();
 717   parse_file(filename);
 718
 719   xbt_dynar_push(model_list, &surf_network_model);
 720   lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
 721                                     func_vegas_fpi);
 722   network_solve = lagrange_solve;
 723
 724   update_model_description(surf_network_model_description,
 725                               surf_network_model_description_size,
 726                               "Vegas",
 727                               (surf_model_t) surf_network_model);
 728 }
 729
 730 #ifdef HAVE_SDP
 731 void surf_network_model_init_SDP(const char *filename)
 732 {
 733   if (surf_network_model)
 734     return;
 735   surf_network_model_init_internal();
 736   parse_file(filename);
 737
 738   xbt_dynar_push(model_list, &surf_network_model);
 739   network_solve = sdp_solve;
 740
 741   update_model_description(surf_network_model_description,
 742                               surf_network_model_description_size,
 743                               "SDP",
 744                               (surf_model_t) surf_network_model);
 745 }
 746 #endif