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 int host_number = 0;
  23 link_CM02_t **routing_table = NULL;
  24 int *routing_table_size = NULL;
  25 static link_CM02_t loopback = NULL;
  26
  27 static void create_routing_table(void)
  28 {
  29   routing_table =
  30       xbt_new0(link_CM02_t *, /*card_number * card_number */ host_number * host_number);
  31   routing_table_size = xbt_new0(int, /*card_number * card_number*/ host_number * host_number);
  32 }
  33
  34 static void link_free(void *nw_link)
  35 {
  36   free(((link_CM02_t) nw_link)->name);
  37   free(nw_link);
  38 }
  39
  40 static link_CM02_t link_new(char *name,
  41                             double bw_initial,
  42                             tmgr_trace_t bw_trace,
  43                             double lat_initial,
  44                             tmgr_trace_t lat_trace,
  45                             e_surf_link_state_t
  46                             state_initial,
  47                             tmgr_trace_t state_trace,
  48                             e_surf_link_sharing_policy_t
  49                             policy, xbt_dict_t properties)
  50 {
  51   link_CM02_t nw_link = xbt_new0(s_link_CM02_t, 1);
  52   xbt_assert1(!xbt_dict_get_or_null(link_set, name),
  53               "Link '%s' declared several times in the platform file.", name);
  54
  55   nw_link->model = (surf_model_t) surf_network_model;
  56   nw_link->name = name;
  57   nw_link->bw_current = bw_initial;
  58   if (bw_trace)
  59     nw_link->bw_event =
  60         tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
  61   nw_link->lat_current = lat_initial;
  62   if (lat_trace)
  63     nw_link->lat_event =
  64         tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
  65   nw_link->state_current = state_initial;
  66   if (state_trace)
  67     nw_link->state_event =
  68         tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
  69
  70   nw_link->constraint =
  71       lmm_constraint_new(network_maxmin_system, nw_link,
  72                          nw_link->bw_current);
  73
  74   if (policy == SURF_LINK_FATPIPE)
  75     lmm_constraint_shared(nw_link->constraint);
  76
  77   nw_link->properties = properties;
  78
  79   current_property_set = properties;
  80
  81   xbt_dict_set(link_set, name, nw_link, link_free);
  82
  83   return nw_link;
  84 }
  85
  86 static void network_card_free(void *nw_card)
  87 {
  88   free(((network_card_CM02_t) nw_card)->name);
  89   free(nw_card);
  90 }
  91
  92 static int network_card_new(const char *card_name)
  93 {
  94   network_card_CM02_t card =
  95       xbt_dict_get_or_null(network_card_set, card_name);
  96
  97   if (!card) {
  98     card = xbt_new0(s_network_card_CM02_t, 1);
  99     card->name = xbt_strdup(card_name);
 100     card->id = card_number++;
 101     xbt_dict_set(network_card_set, card_name, card, network_card_free);
 102   }
 103   return card->id;
 104 }
 105
 106 static void route_new(int src_id, int dst_id,
 107                       link_CM02_t * link_list, int nb_link)
 108 {
 109   ROUTE_SIZE(src_id, dst_id) = nb_link;
 110   ROUTE(src_id, dst_id) = link_list =
 111       xbt_realloc(link_list, sizeof(link_CM02_t) * nb_link);
 112 }
 113
 114 static void parse_link_init(void)
 115 {
 116   char *name_link;
 117   double bw_initial;
 118   tmgr_trace_t bw_trace;
 119   double lat_initial;
 120   tmgr_trace_t lat_trace;
 121   e_surf_link_state_t state_initial_link = SURF_LINK_ON;
 122   e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
 123   tmgr_trace_t state_trace;
 124
 125   name_link = xbt_strdup(A_surfxml_link_id);
 126   surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
 127   surf_parse_get_trace(&bw_trace, A_surfxml_link_bandwidth_file);
 128   surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
 129   surf_parse_get_trace(&lat_trace, A_surfxml_link_latency_file);
 130
 131   xbt_assert0((A_surfxml_link_state ==
 132                A_surfxml_link_state_ON)
 133               || (A_surfxml_link_state ==
 134                   A_surfxml_link_state_OFF), "Invalid state");
 135   if (A_surfxml_link_state == A_surfxml_link_state_ON)
 136     state_initial_link = SURF_LINK_ON;
 137   else if (A_surfxml_link_state ==
 138            A_surfxml_link_state_OFF)
 139     state_initial_link = SURF_LINK_OFF;
 140
 141   if (A_surfxml_link_sharing_policy ==
 142       A_surfxml_link_sharing_policy_SHARED)
 143     policy_initial_link = SURF_LINK_SHARED;
 144   else if (A_surfxml_link_sharing_policy ==
 145            A_surfxml_link_sharing_policy_FATPIPE)
 146     policy_initial_link = SURF_LINK_FATPIPE;
 147
 148   surf_parse_get_trace(&state_trace, A_surfxml_link_state_file);
 149
 150   link_new(name_link, bw_initial, bw_trace,
 151                    lat_initial, lat_trace, state_initial_link, state_trace,
 152                    policy_initial_link, xbt_dict_new());
 153
 154 }
 155
 156 static int src_id = -1;
 157 static int dst_id = -1;
 158
 159 static void parse_route_set_endpoints(void)
 160 {
 161   src_id = network_card_new(A_surfxml_route_src);
 162   dst_id = network_card_new(A_surfxml_route_dst);
 163   route_action = A_surfxml_route_action;
 164   route_link_list = xbt_dynar_new(sizeof(char *), &free_string);
 165 }
 166
 167 static void parse_route_set_route(void)
 168 {
 169   char *name;
 170   if (src_id != -1 && dst_id != -1) {
 171     name = bprintf("%x#%x",src_id, dst_id);
 172     manage_route(route_table, name, route_action, 0);
 173     free(name);
 174   }
 175 }
 176
 177 static void add_loopback(void)
 178 {
 179   int i;
 180   /* Adding loopback if needed */
 181   for (i = 0; i < host_number; i++)
 182     if (!ROUTE_SIZE(i, i)) {
 183       if (!loopback)
 184         loopback = link_new(xbt_strdup("__MSG_loopback__"),
 185                                     498000000, NULL, 0.000015, NULL,
 186                                     SURF_LINK_ON, NULL,
 187                                     SURF_LINK_FATPIPE,NULL);
 188       ROUTE_SIZE(i, i) = 1;
 189       ROUTE(i, i) = xbt_new0(link_CM02_t, 1);
 190       ROUTE(i, i)[0] = loopback;
 191     }
 192 }
 193
 194 static void add_route(void)
 195 {
 196   xbt_ex_t e;
 197   int nb_link = 0;
 198   unsigned int cpt = 0;
 199   int link_list_capacity = 0;
 200   link_CM02_t *link_list = NULL;
 201   xbt_dict_cursor_t cursor = NULL;
 202   char *key,*data, *end;
 203   const char *sep = "#";
 204   xbt_dynar_t links, keys;
 205
 206   if (routing_table == NULL) create_routing_table();
 207
 208   xbt_dict_foreach(route_table, cursor, key, data) {
 209           char* link = NULL;
 210     nb_link = 0;
 211     links = (xbt_dynar_t)data;
 212     keys = xbt_str_split_str(key, sep);
 213
 214     link_list_capacity = xbt_dynar_length(links);
 215     link_list = xbt_new(link_CM02_t, link_list_capacity);
 216
 217     src_id = strtol(xbt_dynar_get_as(keys, 0, char*), &end, 16);
 218     dst_id = strtol(xbt_dynar_get_as(keys, 1, char*), &end, 16);
 219
 220
 221     xbt_dynar_foreach (links, cpt, link) {
 222       TRY {
 223         link_list[nb_link++] = xbt_dict_get(link_set, link);
 224       }
 225       CATCH(e) {
 226         RETHROW1("Link %s not found (dict raised this exception: %s)", link);
 227       }
 228     }
 229     route_new(src_id, dst_id, link_list, nb_link);
 230    }
 231
 232    xbt_dict_free(&route_table);
 233
 234 }
 235
 236 static void count_hosts(void)
 237 {
 238    host_number++;
 239 }
 240
 241 static int called = 0;
 242
 243 static void add_traces(void)
 244 {
 245    xbt_dynar_t trace_connect = NULL;
 246    unsigned int cpt;
 247    int connect_element, connect_kind;
 248    char *value, *trace_id, *connector_id;
 249    link_CM02_t link;
 250    tmgr_trace_t trace;
 251
 252    if (called) return;
 253    called = 1;
 254
 255    /*for all trace connects parse them and update traces for hosts or links */
 256    xbt_dynar_foreach (traces_connect_list, cpt, value) {
 257      trace_connect = xbt_str_split_str(value, "#");
 258      trace_id        = xbt_dynar_get_as(trace_connect, 0, char*);
 259      connect_element = atoi(xbt_dynar_get_as(trace_connect, 1, char*));
 260      connect_kind    = atoi(xbt_dynar_get_as(trace_connect, 2, char*));
 261      connector_id    = xbt_dynar_get_as(trace_connect, 3, char*);
 262
 263      xbt_assert1((trace = xbt_dict_get_or_null(traces_set_list, trace_id)), "Trace %s undefined", trace_id);
 264
 265      if (connect_element == A_surfxml_trace_c_connect_element_LINK) {
 266         xbt_assert1((link = xbt_dict_get_or_null(link_set, connector_id)), "Link %s undefined", connector_id);
 267         switch (connect_kind) {
 268            case A_surfxml_trace_c_connect_kind_AVAILABILITY: link->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, link); break;
 269            case A_surfxml_trace_c_connect_kind_BANDWIDTH: link->bw_event = tmgr_history_add_trace(history, trace, 0.0, 0, link); break;
 270            case A_surfxml_trace_c_connect_kind_LATENCY: link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link); break;
 271         }
 272      }
 273    }
 274
 275    xbt_dynar_free(&trace_connect);
 276    xbt_dynar_free(&traces_connect_list);
 277    xbt_dict_free(&traces_set_list);
 278 }
 279
 280 static void define_callbacks(const char *file)
 281 {
 282   /* Figuring out the network links */
 283   surfxml_add_callback(STag_surfxml_host_cb_list, &count_hosts);
 284   surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
 285   surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
 286   surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
 287   surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_route_elem);
 288   surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
 289   surfxml_add_callback(STag_surfxml_platform_cb_list, &init_data);
 290   surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_route);
 291   surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_loopback);
 292   surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces);
 293   surfxml_add_callback(STag_surfxml_set_cb_list, &parse_sets);
 294   surfxml_add_callback(STag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_endpoints);
 295   surfxml_add_callback(ETag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_route);
 296   surfxml_add_callback(STag_surfxml_foreach_cb_list, &parse_foreach);
 297   surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_cluster);
 298   surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_trace_init);
 299   surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_trace_finalize);
 300   surfxml_add_callback(STag_surfxml_trace_c_connect_cb_list, &parse_trace_c_connect);
 301 }
 302
 303 static void *name_service(const char *name)
 304 {
 305   network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
 306   return card;
 307 }
 308
 309 static const char *get_resource_name(void *resource_id)
 310 {
 311   return ((network_card_CM02_t) resource_id)->name;
 312 }
 313
 314 static int resource_used(void *resource_id)
 315 {
 316   return lmm_constraint_used(network_maxmin_system,
 317                              ((link_CM02_t) resource_id)->
 318                              constraint);
 319 }
 320
 321 static int action_free(surf_action_t action)
 322 {
 323   action->using--;
 324   if (!action->using) {
 325     xbt_swag_remove(action, action->state_set);
 326     if (((surf_action_network_CM02_t) action)->variable)
 327       lmm_variable_free(network_maxmin_system,
 328                         ((surf_action_network_CM02_t) action)->variable);
 329     free(action);
 330     return 1;
 331   }
 332   return 0;
 333 }
 334
 335 static void action_use(surf_action_t action)
 336 {
 337   action->using++;
 338 }
 339
 340 static void action_cancel(surf_action_t action)
 341 {
 342   return;
 343 }
 344
 345 static void action_recycle(surf_action_t action)
 346 {
 347   return;
 348 }
 349
 350 static void action_change_state(surf_action_t action,
 351                                 e_surf_action_state_t state)
 352 {
 353 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 354 /*     if(((surf_action_network_CM02_t)action)->variable) { */
 355 /*       lmm_variable_disable(network_maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
 356 /*       ((surf_action_network_CM02_t)action)->variable = NULL; */
 357 /*     } */
 358
 359   surf_action_change_state(action, state);
 360   return;
 361 }
 362
 363 static double share_resources(double now)
 364 {
 365   s_surf_action_network_CM02_t s_action;
 366   surf_action_network_CM02_t action = NULL;
 367   xbt_swag_t running_actions =
 368       surf_network_model->common_public->states.running_action_set;
 369   double min;
 370
 371   min = generic_maxmin_share_resources(running_actions,
 372                                        xbt_swag_offset(s_action,
 373                                                        variable),
 374                                        network_maxmin_system,
 375                                        network_solve);
 376
 377   xbt_swag_foreach(action, running_actions) {
 378     if (action->latency > 0) {
 379       if (min < 0)
 380         min = action->latency;
 381       else if (action->latency < min)
 382         min = action->latency;
 383     }
 384   }
 385
 386   return min;
 387 }
 388
 389 static void update_actions_state(double now, double delta)
 390 {
 391   double deltap = 0.0;
 392   surf_action_network_CM02_t action = NULL;
 393   surf_action_network_CM02_t next_action = NULL;
 394   xbt_swag_t running_actions =
 395       surf_network_model->common_public->states.running_action_set;
 396   /*
 397      xbt_swag_t failed_actions =
 398      surf_network_model->common_public->states.failed_action_set;
 399    */
 400
 401   xbt_swag_foreach_safe(action, next_action, running_actions) {
 402     deltap = delta;
 403     if (action->latency > 0) {
 404       if (action->latency > deltap) {
 405         double_update(&(action->latency), deltap);
 406         deltap = 0.0;
 407       } else {
 408         double_update(&(deltap), action->latency);
 409         action->latency = 0.0;
 410       }
 411       if ((action->latency == 0.0) && !(action->suspended))
 412         lmm_update_variable_weight(network_maxmin_system, action->variable,
 413                                    action->lat_current);
 414     }
 415     double_update(&(action->generic_action.remains),
 416                   lmm_variable_getvalue(action->variable) * deltap);
 417     if (action->generic_action.max_duration != NO_MAX_DURATION)
 418       double_update(&(action->generic_action.max_duration), delta);
 419
 420     /*   if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
 421
 422     if ((action->generic_action.remains <= 0) &&
 423         (lmm_get_variable_weight(action->variable) > 0)) {
 424       action->generic_action.finish = surf_get_clock();
 425       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 426     } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
 427                (action->generic_action.max_duration <= 0)) {
 428       action->generic_action.finish = surf_get_clock();
 429       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 430     } else {                    /* Need to check that none of the model has failed */
 431       lmm_constraint_t cnst = NULL;
 432       int i = 0;
 433       link_CM02_t nw_link = NULL;
 434
 435       while ((cnst =
 436               lmm_get_cnst_from_var(network_maxmin_system,
 437                                     action->variable, i++))) {
 438         nw_link = lmm_constraint_id(cnst);
 439         if (nw_link->state_current == SURF_LINK_OFF) {
 440           action->generic_action.finish = surf_get_clock();
 441           action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
 442           break;
 443         }
 444       }
 445     }
 446   }
 447
 448   return;
 449 }
 450
 451 static void update_resource_state(void *id,
 452                                   tmgr_trace_event_t event_type,
 453                                   double value)
 454 {
 455   link_CM02_t nw_link = id;
 456   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
 457   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
 458   /*     value, event_type); */
 459
 460   if (event_type == nw_link->bw_event) {
 461     nw_link->bw_current = value;
 462     lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
 463                                 nw_link->bw_current);
 464   } else if (event_type == nw_link->lat_event) {
 465     double delta = value - nw_link->lat_current;
 466     lmm_variable_t var = NULL;
 467     surf_action_network_CM02_t action = NULL;
 468
 469     nw_link->lat_current = value;
 470     while (lmm_get_var_from_cnst
 471            (network_maxmin_system, nw_link->constraint, &var)) {
 472       action = lmm_variable_id(var);
 473       action->lat_current += delta;
 474       if (action->rate < 0)
 475         lmm_update_variable_bound(network_maxmin_system, action->variable,
 476                                   SG_TCP_CTE_GAMMA / (2.0 *
 477                                                       action->
 478                                                       lat_current));
 479       else
 480         lmm_update_variable_bound(network_maxmin_system, action->variable,
 481                                   min(action->rate,
 482                                       SG_TCP_CTE_GAMMA / (2.0 *
 483                                                           action->
 484                                                           lat_current)));
 485       if (!(action->suspended))
 486         lmm_update_variable_weight(network_maxmin_system, action->variable,
 487                                    action->lat_current);
 488       lmm_update_variable_latency(network_maxmin_system, action->variable,
 489                                   delta);
 490     }
 491   } else if (event_type == nw_link->state_event) {
 492     if (value > 0)
 493       nw_link->state_current = SURF_LINK_ON;
 494     else
 495       nw_link->state_current = SURF_LINK_OFF;
 496   } else {
 497     CRITICAL0("Unknown event ! \n");
 498     xbt_abort();
 499   }
 500
 501   return;
 502 }
 503
 504 static surf_action_t communicate(void *src, void *dst, double size,
 505                                  double rate)
 506 {
 507   surf_action_network_CM02_t action = NULL;
 508   network_card_CM02_t card_src = src;
 509   network_card_CM02_t card_dst = dst;
 510   int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
 511   link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
 512   int i;
 513
 514   XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
 515   xbt_assert2(route_size,
 516               "You're trying to send data from %s to %s but there is no connexion between these two cards.",
 517               card_src->name, card_dst->name);
 518
 519   action = xbt_new0(s_surf_action_network_CM02_t, 1);
 520
 521   action->generic_action.using = 1;
 522   action->generic_action.cost = size;
 523   action->generic_action.remains = size;
 524   action->generic_action.max_duration = NO_MAX_DURATION;
 525   action->generic_action.start = surf_get_clock();
 526   action->generic_action.finish = -1.0;
 527   action->generic_action.model_type =
 528       (surf_model_t) surf_network_model;
 529   action->suspended = 0;        /* Should be useless because of the
 530                                    calloc but it seems to help valgrind... */
 531   action->generic_action.state_set =
 532       surf_network_model->common_public->states.running_action_set;
 533
 534   xbt_swag_insert(action, action->generic_action.state_set);
 535   action->rate = rate;
 536
 537   action->latency = 0.0;
 538   for (i = 0; i < route_size; i++)
 539     action->latency += route[i]->lat_current;
 540   action->lat_current = action->latency;
 541
 542   if (action->latency > 0)
 543     action->variable =
 544         lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
 545                          route_size);
 546   else
 547     action->variable =
 548         lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
 549                          route_size);
 550
 551   if (action->rate < 0) {
 552     if (action->lat_current > 0)
 553       lmm_update_variable_bound(network_maxmin_system, action->variable,
 554                                 SG_TCP_CTE_GAMMA / (2.0 *
 555                                                     action->lat_current));
 556     else
 557       lmm_update_variable_bound(network_maxmin_system, action->variable,
 558                                 -1.0);
 559   } else {
 560     if (action->lat_current > 0)
 561       lmm_update_variable_bound(network_maxmin_system, action->variable,
 562                                 min(action->rate,
 563                                     SG_TCP_CTE_GAMMA / (2.0 *
 564                                                         action->
 565                                                         lat_current)));
 566     else
 567       lmm_update_variable_bound(network_maxmin_system, action->variable,
 568                                 action->rate);
 569   }
 570   lmm_update_variable_latency(network_maxmin_system, action->variable,
 571                               action->latency);
 572
 573   for (i = 0; i < route_size; i++)
 574     lmm_expand(network_maxmin_system, route[i]->constraint,
 575                action->variable, 1.0);
 576   XBT_OUT;
 577
 578   return (surf_action_t) action;
 579 }
 580
 581 /* returns an array of link_CM02_t */
 582 static const void **get_route(void *src, void *dst)
 583 {
 584   network_card_CM02_t card_src = src;
 585   network_card_CM02_t card_dst = dst;
 586   return (const void **) ROUTE(card_src->id, card_dst->id);
 587 }
 588
 589 static int get_route_size(void *src, void *dst)
 590 {
 591   network_card_CM02_t card_src = src;
 592   network_card_CM02_t card_dst = dst;
 593   return ROUTE_SIZE(card_src->id, card_dst->id);
 594 }
 595
 596 static const char *get_link_name(const void *link)
 597 {
 598   return ((link_CM02_t) link)->name;
 599 }
 600
 601 static double get_link_bandwidth(const void *link)
 602 {
 603   return ((link_CM02_t) link)->bw_current;
 604 }
 605
 606 static double get_link_latency(const void *link)
 607 {
 608   return ((link_CM02_t) link)->lat_current;
 609 }
 610
 611 static xbt_dict_t get_properties(void *link)
 612 {
 613  return ((link_CM02_t) link)->properties;
 614 }
 615
 616 static void action_suspend(surf_action_t action)
 617 {
 618   ((surf_action_network_CM02_t) action)->suspended = 1;
 619   lmm_update_variable_weight(network_maxmin_system,
 620                              ((surf_action_network_CM02_t) action)->
 621                              variable, 0.0);
 622 }
 623
 624 static void action_resume(surf_action_t action)
 625 {
 626   if (((surf_action_network_CM02_t) action)->suspended) {
 627     lmm_update_variable_weight(network_maxmin_system,
 628                                ((surf_action_network_CM02_t) action)->
 629                                variable,
 630                                ((surf_action_network_CM02_t) action)->
 631                                lat_current);
 632     ((surf_action_network_CM02_t) action)->suspended = 0;
 633   }
 634 }
 635
 636 static int action_is_suspended(surf_action_t action)
 637 {
 638   return ((surf_action_network_CM02_t) action)->suspended;
 639 }
 640
 641 static void action_set_max_duration(surf_action_t action, double duration)
 642 {
 643   action->max_duration = duration;
 644 }
 645
 646 static void finalize(void)
 647 {
 648   int i, j;
 649
 650   xbt_dict_free(&network_card_set);
 651   xbt_dict_free(&link_set);
 652   xbt_swag_free(surf_network_model->common_public->states.
 653                 ready_action_set);
 654   xbt_swag_free(surf_network_model->common_public->states.
 655                 running_action_set);
 656   xbt_swag_free(surf_network_model->common_public->states.
 657                 failed_action_set);
 658   xbt_swag_free(surf_network_model->common_public->states.
 659                 done_action_set);
 660   free(surf_network_model->common_public);
 661   free(surf_network_model->common_private);
 662   free(surf_network_model->extension_public);
 663
 664   free(surf_network_model);
 665   surf_network_model = NULL;
 666
 667   loopback = NULL;
 668   for (i = 0; i < card_number; i++)
 669     for (j = 0; j < card_number; j++)
 670       free(ROUTE(i, j));
 671   free(routing_table);
 672   routing_table = NULL;
 673   free(routing_table_size);
 674   routing_table_size = NULL;
 675   card_number = 0;
 676 }
 677
 678 static void surf_network_model_init_internal(void)
 679 {
 680   s_surf_action_t action;
 681
 682   surf_network_model = xbt_new0(s_surf_network_model_t, 1);
 683
 684   surf_network_model->common_private =
 685       xbt_new0(s_surf_model_private_t, 1);
 686   surf_network_model->common_public =
 687       xbt_new0(s_surf_model_public_t, 1);
 688   surf_network_model->extension_public =
 689       xbt_new0(s_surf_network_model_extension_public_t, 1);
 690
 691   surf_network_model->common_public->states.ready_action_set =
 692       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 693   surf_network_model->common_public->states.running_action_set =
 694       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 695   surf_network_model->common_public->states.failed_action_set =
 696       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 697   surf_network_model->common_public->states.done_action_set =
 698       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 699
 700   surf_network_model->common_public->name_service = name_service;
 701   surf_network_model->common_public->get_resource_name =
 702       get_resource_name;
 703   surf_network_model->common_public->action_get_state =
 704       surf_action_get_state;
 705   surf_network_model->common_public->action_get_start_time =
 706       surf_action_get_start_time;
 707   surf_network_model->common_public->action_get_finish_time =
 708       surf_action_get_finish_time;
 709   surf_network_model->common_public->action_free = action_free;
 710   surf_network_model->common_public->action_use = action_use;
 711   surf_network_model->common_public->action_cancel = action_cancel;
 712   surf_network_model->common_public->action_recycle = action_recycle;
 713   surf_network_model->common_public->action_change_state =
 714       action_change_state;
 715   surf_network_model->common_public->action_set_data =
 716       surf_action_set_data;
 717   surf_network_model->common_public->name = "network";
 718
 719   surf_network_model->common_private->resource_used = resource_used;
 720   surf_network_model->common_private->share_resources = share_resources;
 721   surf_network_model->common_private->update_actions_state =
 722       update_actions_state;
 723   surf_network_model->common_private->update_resource_state =
 724       update_resource_state;
 725   surf_network_model->common_private->finalize = finalize;
 726
 727   surf_network_model->common_public->suspend = action_suspend;
 728   surf_network_model->common_public->resume = action_resume;
 729   surf_network_model->common_public->is_suspended = action_is_suspended;
 730   surf_cpu_model->common_public->set_max_duration =
 731       action_set_max_duration;
 732
 733   surf_network_model->extension_public->communicate = communicate;
 734   surf_network_model->extension_public->get_route = get_route;
 735   surf_network_model->extension_public->get_route_size = get_route_size;
 736   surf_network_model->extension_public->get_link_name = get_link_name;
 737   surf_network_model->extension_public->get_link_bandwidth =
 738       get_link_bandwidth;
 739   surf_network_model->extension_public->get_link_latency =
 740       get_link_latency;
 741
 742   surf_network_model->common_public->get_properties =  get_properties;
 743
 744   link_set = xbt_dict_new();
 745   network_card_set = xbt_dict_new();
 746
 747   if (!network_maxmin_system)
 748     network_maxmin_system = lmm_system_new();
 749 }
 750
 751 /***************************************************************************/
 752 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
 753 /***************************************************************************/
 754 /* @TechReport{      rr-lip2002-40, */
 755 /*   author        = {Henri Casanova and Loris Marchal}, */
 756 /*   institution   = {LIP}, */
 757 /*   title         = {A Network Model for Simulation of Grid Application}, */
 758 /*   number        = {2002-40}, */
 759 /*   month         = {oct}, */
 760 /*   year          = {2002} */
 761 /* } */
 762 void surf_network_model_init_CM02(const char *filename)
 763 {
 764
 765   if (surf_network_model)
 766     return;
 767   surf_network_model_init_internal();
 768   define_callbacks(filename);
 769   xbt_dynar_push(model_list, &surf_network_model);
 770   network_solve = lmm_solve;
 771
 772   update_model_description(surf_network_model_description,
 773                               surf_network_model_description_size,
 774                               "CM02",
 775                               (surf_model_t) surf_network_model);
 776 }
 777
 778 void surf_network_model_init_Reno(const char *filename)
 779 {
 780   if (surf_network_model)
 781     return;
 782   surf_network_model_init_internal();
 783   define_callbacks(filename);
 784
 785   xbt_dynar_push(model_list, &surf_network_model);
 786   lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
 787                                     func_reno_fpi);
 788   network_solve = lagrange_solve;
 789
 790   update_model_description(surf_network_model_description,
 791                               surf_network_model_description_size,
 792                               "Reno",
 793                               (surf_model_t) surf_network_model);
 794 }
 795
 796 void surf_network_model_init_Vegas(const char *filename)
 797 {
 798   if (surf_network_model)
 799     return;
 800   surf_network_model_init_internal();
 801   define_callbacks(filename);
 802
 803   xbt_dynar_push(model_list, &surf_network_model);
 804   lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
 805                                     func_vegas_fpi);
 806   network_solve = lagrange_solve;
 807
 808   update_model_description(surf_network_model_description,
 809                               surf_network_model_description_size,
 810                               "Vegas",
 811                               (surf_model_t) surf_network_model);
 812 }
 813
 814 #ifdef HAVE_SDP
 815 void surf_network_model_init_SDP(const char *filename)
 816 {
 817   if (surf_network_model)
 818     return;
 819   surf_network_model_init_internal();
 820   define_callbacks(filename);
 821
 822   xbt_dynar_push(model_list, &surf_network_model);
 823   network_solve = sdp_solve;
 824
 825   update_model_description(surf_network_model_description,
 826                               surf_network_model_description_size,
 827                               "SDP",
 828                               (surf_model_t) surf_network_model);
 829 }
 830 #endif