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 #include "xbt/str.h"
  11
  12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
  13                                 "Logging specific to the SURF network module");
  14
  15 surf_network_model_t surf_network_model = NULL;
  16 static lmm_system_t network_maxmin_system = NULL;
  17 static void (*network_solve) (lmm_system_t) = NULL;
  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 = host_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 *), &xbt_free_ref);
 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     xbt_dynar_free(&keys);
 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
 242 static void add_traces(void) {
 243    xbt_dict_cursor_t cursor=NULL;
 244    char *trace_name,*elm;
 245
 246    static int called = 0;
 247    if (called) return;
 248    called = 1;
 249
 250    /* connect all traces relative to network */
 251    xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
 252       tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
 253       link_CM02_t link = xbt_dict_get_or_null(link_set, elm);
 254
 255       xbt_assert1(link, "Link %s undefined", elm);
 256       xbt_assert1(trace, "Trace %s undefined", trace_name);
 257
 258       link->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 259    }
 260
 261    xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
 262       tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
 263       link_CM02_t link = xbt_dict_get_or_null(link_set, elm);
 264
 265       xbt_assert1(link, "Link %s undefined", elm);
 266       xbt_assert1(trace, "Trace %s undefined", trace_name);
 267
 268       link->bw_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 269    }
 270
 271    xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
 272       tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
 273       link_CM02_t link = xbt_dict_get_or_null(link_set, elm);
 274
 275       xbt_assert1(link, "Link %s undefined", elm);
 276       xbt_assert1(trace, "Trace %s undefined", trace_name);
 277
 278       link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
 279    }
 280
 281    xbt_dict_free(&trace_connect_list_host_avail);
 282    xbt_dict_free(&trace_connect_list_power);
 283    xbt_dict_free(&trace_connect_list_link_avail);
 284    xbt_dict_free(&trace_connect_list_bandwidth);
 285    xbt_dict_free(&trace_connect_list_latency);
 286
 287    xbt_dict_free(&traces_set_list);
 288 }
 289
 290 static void define_callbacks(const char *file)
 291 {
 292   /* Figuring out the network links */
 293   surfxml_add_callback(STag_surfxml_host_cb_list, &count_hosts);
 294   surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
 295   surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
 296   surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
 297   surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_route_elem);
 298   surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
 299   surfxml_add_callback(STag_surfxml_platform_cb_list, &init_data);
 300   surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces);
 301   surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_route);
 302   surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_loopback);
 303   surfxml_add_callback(STag_surfxml_set_cb_list, &parse_sets);
 304   surfxml_add_callback(STag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_endpoints);
 305   surfxml_add_callback(ETag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_route);
 306   surfxml_add_callback(STag_surfxml_foreach_cb_list, &parse_foreach);
 307   surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_cluster);
 308   surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_trace_init);
 309   surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_trace_finalize);
 310   surfxml_add_callback(STag_surfxml_trace_c_connect_cb_list, &parse_trace_c_connect);
 311 }
 312
 313 static void *name_service(const char *name)
 314 {
 315   network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
 316   return card;
 317 }
 318
 319 static const char *get_resource_name(void *resource_id)
 320 {
 321   return ((network_card_CM02_t) resource_id)->name;
 322 }
 323
 324 static int resource_used(void *resource_id)
 325 {
 326   return lmm_constraint_used(network_maxmin_system,
 327                              ((link_CM02_t) resource_id)->
 328                              constraint);
 329 }
 330
 331 static int action_free(surf_action_t action)
 332 {
 333   action->using--;
 334   if (!action->using) {
 335     xbt_swag_remove(action, action->state_set);
 336     if (((surf_action_network_CM02_t) action)->variable)
 337       lmm_variable_free(network_maxmin_system,
 338                         ((surf_action_network_CM02_t) action)->variable);
 339     free(action);
 340     return 1;
 341   }
 342   return 0;
 343 }
 344
 345 static void action_use(surf_action_t action)
 346 {
 347   action->using++;
 348 }
 349
 350 static void action_cancel(surf_action_t action)
 351 {
 352   return;
 353 }
 354
 355 static void action_recycle(surf_action_t action)
 356 {
 357   return;
 358 }
 359
 360 static void action_change_state(surf_action_t action,
 361                                 e_surf_action_state_t state)
 362 {
 363 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 364 /*     if(((surf_action_network_CM02_t)action)->variable) { */
 365 /*       lmm_variable_disable(network_maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
 366 /*       ((surf_action_network_CM02_t)action)->variable = NULL; */
 367 /*     } */
 368
 369   surf_action_change_state(action, state);
 370   return;
 371 }
 372
 373 static double share_resources(double now)
 374 {
 375   s_surf_action_network_CM02_t s_action;
 376   surf_action_network_CM02_t action = NULL;
 377   xbt_swag_t running_actions =
 378       surf_network_model->common_public->states.running_action_set;
 379   double min;
 380
 381   min = generic_maxmin_share_resources(running_actions,
 382                                        xbt_swag_offset(s_action,
 383                                                        variable),
 384                                        network_maxmin_system,
 385                                        network_solve);
 386
 387 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable)  )))
 388
 389   xbt_swag_foreach(action, running_actions) {
 390     if (action->latency > 0) {
 391       if (min < 0)
 392         min = action->latency;
 393       else if (action->latency < min)
 394         min = action->latency;
 395     }
 396   }
 397
 398   return min;
 399 }
 400
 401 static void update_actions_state(double now, double delta)
 402 {
 403   double deltap = 0.0;
 404   surf_action_network_CM02_t action = NULL;
 405   surf_action_network_CM02_t next_action = NULL;
 406   xbt_swag_t running_actions =
 407       surf_network_model->common_public->states.running_action_set;
 408   /*
 409      xbt_swag_t failed_actions =
 410      surf_network_model->common_public->states.failed_action_set;
 411    */
 412
 413   xbt_swag_foreach_safe(action, next_action, running_actions) {
 414     deltap = delta;
 415     if (action->latency > 0) {
 416       if (action->latency > deltap) {
 417         double_update(&(action->latency), deltap);
 418         deltap = 0.0;
 419       } else {
 420         double_update(&(deltap), action->latency);
 421         action->latency = 0.0;
 422       }
 423       if ((action->latency == 0.0) && !(action->suspended))
 424         lmm_update_variable_weight(network_maxmin_system, action->variable,
 425                                    action->lat_current);
 426     }
 427     double_update(&(action->generic_action.remains),
 428                   lmm_variable_getvalue(action->variable) * deltap);
 429     if (action->generic_action.max_duration != NO_MAX_DURATION)
 430       double_update(&(action->generic_action.max_duration), delta);
 431
 432     if ((action->generic_action.remains <= 0) &&
 433         (lmm_get_variable_weight(action->variable) > 0)) {
 434       action->generic_action.finish = surf_get_clock();
 435       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 436     } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
 437                (action->generic_action.max_duration <= 0)) {
 438       action->generic_action.finish = surf_get_clock();
 439       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 440     }
 441   }
 442
 443   return;
 444 }
 445
 446 static void update_resource_state(void *id,
 447                                   tmgr_trace_event_t event_type,
 448                                   double value, double date)
 449 {
 450   link_CM02_t nw_link = id;
 451   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
 452   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
 453   /*     value, event_type); */
 454
 455   if (event_type == nw_link->bw_event) {
 456     nw_link->bw_current = value;
 457     lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
 458                                 nw_link->bw_current);
 459   } else if (event_type == nw_link->lat_event) {
 460     double delta = value - nw_link->lat_current;
 461     lmm_variable_t var = NULL;
 462     lmm_element_t elem = NULL;
 463     surf_action_network_CM02_t action = NULL;
 464
 465     nw_link->lat_current = value;
 466     while ((var= lmm_get_var_from_cnst
 467            (network_maxmin_system, nw_link->constraint, &elem))) {
 468       action = lmm_variable_id(var);
 469       action->lat_current += delta;
 470       if (action->rate < 0)
 471         lmm_update_variable_bound(network_maxmin_system, action->variable,
 472                                   SG_TCP_CTE_GAMMA / (2.0 *
 473                                                       action->
 474                                                       lat_current));
 475       else
 476         lmm_update_variable_bound(network_maxmin_system, action->variable,
 477                                   min(action->rate,
 478                                       SG_TCP_CTE_GAMMA / (2.0 *
 479                                                           action->
 480                                                           lat_current)));
 481       if (!(action->suspended))
 482         lmm_update_variable_weight(network_maxmin_system, action->variable,
 483                                    action->lat_current);
 484       lmm_update_variable_latency(network_maxmin_system, action->variable,
 485                                   delta);
 486     }
 487   } else if (event_type == nw_link->state_event) {
 488     if (value > 0)
 489       nw_link->state_current = SURF_LINK_ON;
 490     else {
 491       lmm_constraint_t cnst = nw_link->constraint;
 492       lmm_variable_t var = NULL;
 493       lmm_element_t elem = NULL;
 494
 495       nw_link->state_current = SURF_LINK_OFF;
 496       while ((var= lmm_get_var_from_cnst
 497               (network_maxmin_system, cnst, &elem))) {
 498         surf_action_t action = lmm_variable_id(var) ;
 499
 500         if(surf_action_get_state(action)==SURF_ACTION_RUNNING ||
 501            surf_action_get_state(action)==SURF_ACTION_READY) {
 502           action->finish = date;
 503           action_change_state( action, SURF_ACTION_FAILED);
 504         }
 505       }
 506     }
 507   } else {
 508     CRITICAL0("Unknown event ! \n");
 509     xbt_abort();
 510   }
 511
 512   return;
 513 }
 514
 515 static surf_action_t communicate(void *src, void *dst, double size,
 516                                  double rate)
 517 {
 518   surf_action_network_CM02_t action = NULL;
 519   /* LARGE PLATFORMS HACK:
 520      Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
 521      Use the cluster_id for ->id */
 522   network_card_CM02_t card_src = src;
 523   network_card_CM02_t card_dst = dst;
 524   int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
 525   link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
 526   /* LARGE PLATFORMS HACK:
 527      total_route_size = route_size + src->link_nb + dst->nb */
 528   int i;
 529
 530   XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
 531   /* LARGE PLATFORMS HACK:
 532      assert on total_route_size */
 533   xbt_assert2(route_size,
 534               "You're trying to send data from %s to %s but there is no connexion between these two cards.",
 535               card_src->name, card_dst->name);
 536
 537   action = xbt_new0(s_surf_action_network_CM02_t, 1);
 538
 539   action->generic_action.using = 1;
 540   action->generic_action.cost = size;
 541   action->generic_action.remains = size;
 542   action->generic_action.max_duration = NO_MAX_DURATION;
 543   action->generic_action.start = surf_get_clock();
 544   action->generic_action.finish = -1.0;
 545   action->generic_action.model_type =
 546       (surf_model_t) surf_network_model;
 547   action->suspended = 0;        /* Should be useless because of the
 548                                    calloc but it seems to help valgrind... */
 549   action->generic_action.state_set =
 550       surf_network_model->common_public->states.running_action_set;
 551   for (i = 0; i < route_size; i++)
 552     if(route[i]->state_current == SURF_LINK_OFF) {
 553       action->generic_action.state_set =
 554         surf_network_model->common_public->states.failed_action_set;
 555       break;
 556     }
 557
 558   xbt_swag_insert(action, action->generic_action.state_set);
 559   action->rate = rate;
 560
 561   action->latency = 0.0;
 562   for (i = 0; i < route_size; i++)
 563     action->latency += route[i]->lat_current;
 564   /* LARGE PLATFORMS HACK:
 565      Add src->link and dst->link latencies */
 566   action->lat_current = action->latency;
 567
 568   /* LARGE PLATFORMS HACK:
 569      lmm_variable_new(..., total_route_size)*/
 570   if (action->latency > 0)
 571     action->variable =
 572         lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
 573                          route_size);
 574   else
 575     action->variable =
 576         lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
 577                          route_size);
 578
 579   if (action->rate < 0) {
 580     if (action->lat_current > 0)
 581       lmm_update_variable_bound(network_maxmin_system, action->variable,
 582                                 SG_TCP_CTE_GAMMA / (2.0 *
 583                                                     action->lat_current));
 584     else
 585       lmm_update_variable_bound(network_maxmin_system, action->variable,
 586                                 -1.0);
 587   } else {
 588     if (action->lat_current > 0)
 589       lmm_update_variable_bound(network_maxmin_system, action->variable,
 590                                 min(action->rate,
 591                                     SG_TCP_CTE_GAMMA / (2.0 *
 592                                                         action->
 593                                                         lat_current)));
 594     else
 595       lmm_update_variable_bound(network_maxmin_system, action->variable,
 596                                 action->rate);
 597   }
 598   lmm_update_variable_latency(network_maxmin_system, action->variable,
 599                               action->latency);
 600
 601   for (i = 0; i < route_size; i++)
 602     lmm_expand(network_maxmin_system, route[i]->constraint,
 603                action->variable, 1.0);
 604   /* LARGE PLATFORMS HACK:
 605      expand also with src->link and dst->link */
 606
 607   XBT_OUT;
 608
 609   return (surf_action_t) action;
 610 }
 611
 612 /* returns an array of link_CM02_t */
 613 static const void **get_route(void *src, void *dst)
 614 {
 615   network_card_CM02_t card_src = src;
 616   network_card_CM02_t card_dst = dst;
 617   return (const void **) ROUTE(card_src->id, card_dst->id);
 618 }
 619
 620 static int get_route_size(void *src, void *dst)
 621 {
 622   network_card_CM02_t card_src = src;
 623   network_card_CM02_t card_dst = dst;
 624   return ROUTE_SIZE(card_src->id, card_dst->id);
 625 }
 626
 627 static const char *get_link_name(const void *link)
 628 {
 629   return ((link_CM02_t) link)->name;
 630 }
 631
 632 static double get_link_bandwidth(const void *link)
 633 {
 634   return ((link_CM02_t) link)->bw_current;
 635 }
 636
 637 static double get_link_latency(const void *link)
 638 {
 639   return ((link_CM02_t) link)->lat_current;
 640 }
 641
 642 static xbt_dict_t get_properties(void *link)
 643 {
 644  return ((link_CM02_t) link)->properties;
 645 }
 646
 647 static void action_suspend(surf_action_t action)
 648 {
 649   ((surf_action_network_CM02_t) action)->suspended = 1;
 650   lmm_update_variable_weight(network_maxmin_system,
 651                              ((surf_action_network_CM02_t) action)->
 652                              variable, 0.0);
 653 }
 654
 655 static void action_resume(surf_action_t action)
 656 {
 657   if (((surf_action_network_CM02_t) action)->suspended) {
 658     lmm_update_variable_weight(network_maxmin_system,
 659                                ((surf_action_network_CM02_t) action)->
 660                                variable,
 661                                ((surf_action_network_CM02_t) action)->
 662                                lat_current);
 663     ((surf_action_network_CM02_t) action)->suspended = 0;
 664   }
 665 }
 666
 667 static int action_is_suspended(surf_action_t action)
 668 {
 669   return ((surf_action_network_CM02_t) action)->suspended;
 670 }
 671
 672 static void action_set_max_duration(surf_action_t action, double duration)
 673 {
 674   action->max_duration = duration;
 675 }
 676
 677 static void finalize(void)
 678 {
 679   int i, j;
 680
 681   xbt_dict_free(&network_card_set);
 682   xbt_dict_free(&link_set);
 683   xbt_swag_free(surf_network_model->common_public->states.
 684                 ready_action_set);
 685   xbt_swag_free(surf_network_model->common_public->states.
 686                 running_action_set);
 687   xbt_swag_free(surf_network_model->common_public->states.
 688                 failed_action_set);
 689   xbt_swag_free(surf_network_model->common_public->states.
 690                 done_action_set);
 691   free(surf_network_model->common_public);
 692   free(surf_network_model->common_private);
 693   free(surf_network_model->extension_public);
 694
 695   free(surf_network_model);
 696   surf_network_model = NULL;
 697
 698   loopback = NULL;
 699   for (i = 0; i < host_number; i++)
 700     for (j = 0; j < host_number; j++)
 701       free(ROUTE(i, j));
 702   free(routing_table);
 703   routing_table = NULL;
 704   free(routing_table_size);
 705   routing_table_size = NULL;
 706   host_number = 0;
 707   lmm_system_free(network_maxmin_system);
 708   network_maxmin_system = NULL;
 709 }
 710
 711 static void surf_network_model_init_internal(void)
 712 {
 713   s_surf_action_t action;
 714
 715   surf_network_model = xbt_new0(s_surf_network_model_t, 1);
 716
 717   surf_network_model->common_private =
 718       xbt_new0(s_surf_model_private_t, 1);
 719   surf_network_model->common_public =
 720       xbt_new0(s_surf_model_public_t, 1);
 721   surf_network_model->extension_public =
 722       xbt_new0(s_surf_network_model_extension_public_t, 1);
 723
 724   surf_network_model->common_public->states.ready_action_set =
 725       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 726   surf_network_model->common_public->states.running_action_set =
 727       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 728   surf_network_model->common_public->states.failed_action_set =
 729       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 730   surf_network_model->common_public->states.done_action_set =
 731       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 732
 733   surf_network_model->common_public->name_service = name_service;
 734   surf_network_model->common_public->get_resource_name =
 735       get_resource_name;
 736   surf_network_model->common_public->action_get_state =
 737       surf_action_get_state;
 738   surf_network_model->common_public->action_get_start_time =
 739       surf_action_get_start_time;
 740   surf_network_model->common_public->action_get_finish_time =
 741       surf_action_get_finish_time;
 742   surf_network_model->common_public->action_free = action_free;
 743   surf_network_model->common_public->action_use = action_use;
 744   surf_network_model->common_public->action_cancel = action_cancel;
 745   surf_network_model->common_public->action_recycle = action_recycle;
 746   surf_network_model->common_public->action_change_state =
 747       action_change_state;
 748   surf_network_model->common_public->action_set_data =
 749       surf_action_set_data;
 750   surf_network_model->common_public->name = "network";
 751
 752   surf_network_model->common_private->resource_used = resource_used;
 753   surf_network_model->common_private->share_resources = share_resources;
 754   surf_network_model->common_private->update_actions_state =
 755       update_actions_state;
 756   surf_network_model->common_private->update_resource_state =
 757       update_resource_state;
 758   surf_network_model->common_private->finalize = finalize;
 759
 760   surf_network_model->common_public->suspend = action_suspend;
 761   surf_network_model->common_public->resume = action_resume;
 762   surf_network_model->common_public->is_suspended = action_is_suspended;
 763   surf_cpu_model->common_public->set_max_duration =
 764       action_set_max_duration;
 765
 766   surf_network_model->extension_public->communicate = communicate;
 767   surf_network_model->extension_public->get_route = get_route;
 768   surf_network_model->extension_public->get_route_size = get_route_size;
 769   surf_network_model->extension_public->get_link_name = get_link_name;
 770   surf_network_model->extension_public->get_link_bandwidth =
 771       get_link_bandwidth;
 772   surf_network_model->extension_public->get_link_latency =
 773       get_link_latency;
 774
 775   surf_network_model->common_public->get_properties =  get_properties;
 776
 777   link_set = xbt_dict_new();
 778   network_card_set = xbt_dict_new();
 779
 780   if (!network_maxmin_system)
 781     network_maxmin_system = lmm_system_new();
 782 }
 783
 784 /***************************************************************************/
 785 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
 786 /***************************************************************************/
 787 /* @TechReport{      rr-lip2002-40, */
 788 /*   author        = {Henri Casanova and Loris Marchal}, */
 789 /*   institution   = {LIP}, */
 790 /*   title         = {A Network Model for Simulation of Grid Application}, */
 791 /*   number        = {2002-40}, */
 792 /*   month         = {oct}, */
 793 /*   year          = {2002} */
 794 /* } */
 795 void surf_network_model_init_CM02(const char *filename)
 796 {
 797
 798   if (surf_network_model)
 799     return;
 800   surf_network_model_init_internal();
 801   define_callbacks(filename);
 802   xbt_dynar_push(model_list, &surf_network_model);
 803   network_solve = lmm_solve;
 804
 805   update_model_description(surf_network_model_description,
 806                            "CM02",
 807                            (surf_model_t) surf_network_model);
 808 }
 809
 810 void surf_network_model_init_Reno(const char *filename)
 811 {
 812   if (surf_network_model)
 813     return;
 814   surf_network_model_init_internal();
 815   define_callbacks(filename);
 816
 817   xbt_dynar_push(model_list, &surf_network_model);
 818   lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
 819                                     func_reno_fpi);
 820   network_solve = lagrange_solve;
 821
 822   update_model_description(surf_network_model_description,
 823                            "Reno",
 824                            (surf_model_t) surf_network_model);
 825 }
 826
 827
 828 void surf_network_model_init_Reno2(const char *filename)
 829 {
 830   if (surf_network_model)
 831     return;
 832   surf_network_model_init_internal();
 833   define_callbacks(filename);
 834
 835   xbt_dynar_push(model_list, &surf_network_model);
 836   lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
 837                                     func_reno2_fpi);
 838   network_solve = lagrange_solve;
 839
 840   update_model_description(surf_network_model_description,
 841                            "Reno2",
 842                            (surf_model_t) surf_network_model);
 843 }
 844
 845 void surf_network_model_init_Vegas(const char *filename)
 846 {
 847   if (surf_network_model)
 848     return;
 849   surf_network_model_init_internal();
 850   define_callbacks(filename);
 851
 852   xbt_dynar_push(model_list, &surf_network_model);
 853   lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
 854                                     func_vegas_fpi);
 855   network_solve = lagrange_solve;
 856
 857   update_model_description(surf_network_model_description,
 858                            "Vegas",
 859                            (surf_model_t) surf_network_model);
 860 }
 861
 862 #ifdef HAVE_SDP
 863 void surf_network_model_init_SDP(const char *filename)
 864 {
 865   if (surf_network_model)
 866     return;
 867   surf_network_model_init_internal();
 868   define_callbacks(filename);
 869
 870   xbt_dynar_push(model_list, &surf_network_model);
 871   network_solve = sdp_solve;
 872
 873   update_model_description(surf_network_model_description,
 874                            "SDP",
 875                            (surf_model_t) surf_network_model);
 876 }
 877 #endif
 878
 879 #ifdef HAVE_GTNETS
 880 void surf_network_model_init_GTNETS(const char *filename)
 881 {
 882   if (surf_network_model)
 883     return;
 884   surf_network_model_init_internal();
 885   define_callbacks(filename);
 886   xbt_dynar_push(model_list, &surf_network_model);
 887
 888   update_model_description(surf_network_model_description,
 889                            "GTNets",
 890                            (surf_model_t) surf_network_model);
 891 }
 892 #endif