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_resource_t surf_network_resource = NULL;
  15
  16 xbt_dict_t network_link_set = NULL;
  17 xbt_dict_t network_card_set = NULL;
  18
  19 int card_number = 0;
  20 network_link_CM02_t **routing_table = NULL;
  21 int *routing_table_size = NULL;
  22 static network_link_CM02_t loopback = NULL;
  23
  24 static void create_routing_table(void)
  25 {
  26   routing_table = xbt_new0(network_link_CM02_t *, card_number * card_number);
  27   routing_table_size = xbt_new0(int, card_number * card_number);
  28 }
  29
  30 static void network_link_free(void *nw_link)
  31 {
  32   free(((network_link_CM02_t)nw_link)->name);
  33   free(nw_link);
  34 }
  35
  36 static network_link_CM02_t network_link_new(char *name,
  37                                        double bw_initial,
  38                                        tmgr_trace_t bw_trace,
  39                                        double lat_initial,
  40                                        tmgr_trace_t lat_trace,
  41                                        e_surf_network_link_state_t
  42                                        state_initial,
  43                                        tmgr_trace_t state_trace,
  44                                        e_surf_network_link_sharing_policy_t policy)
  45 {
  46   network_link_CM02_t nw_link = xbt_new0(s_network_link_CM02_t, 1);
  47
  48
  49   nw_link->resource = (surf_resource_t) surf_network_resource;
  50   nw_link->name = name;
  51   nw_link->bw_current = bw_initial;
  52   if (bw_trace)
  53     nw_link->bw_event =
  54         tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
  55   nw_link->lat_current = lat_initial;
  56   if (lat_trace)
  57     nw_link->lat_event =
  58         tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
  59   nw_link->state_current = state_initial;
  60   if (state_trace)
  61     nw_link->state_event =
  62         tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
  63
  64   nw_link->constraint =
  65       lmm_constraint_new(maxmin_system, nw_link, nw_link->bw_current);
  66
  67   if(policy == SURF_NETWORK_LINK_FATPIPE)
  68     lmm_constraint_shared(nw_link->constraint);
  69
  70   xbt_dict_set(network_link_set, name, nw_link, network_link_free);
  71
  72   return nw_link;
  73 }
  74
  75 static void network_card_free(void *nw_card)
  76 {
  77   free(((network_card_CM02_t)nw_card)->name);
  78   free(nw_card);
  79 }
  80
  81 static int network_card_new(const char *card_name)
  82 {
  83   network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, card_name);
  84
  85   if (!card) {
  86     card = xbt_new0(s_network_card_CM02_t, 1);
  87     card->name = xbt_strdup(card_name);
  88     card->id = card_number++;
  89     xbt_dict_set(network_card_set, card_name, card, network_card_free);
  90   }
  91   return card->id;
  92 }
  93
  94 static void route_new(int src_id, int dst_id, network_link_CM02_t *link_list, int nb_link)
  95 {
  96   ROUTE_SIZE(src_id, dst_id) = nb_link;
  97   ROUTE(src_id, dst_id) = link_list = xbt_realloc(link_list, sizeof(network_link_CM02_t) * nb_link);
  98 }
  99
 100 static void parse_network_link(void)
 101 {
 102   char *name;
 103   double bw_initial;
 104   tmgr_trace_t bw_trace;
 105   double lat_initial;
 106   tmgr_trace_t lat_trace;
 107   e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
 108   e_surf_network_link_sharing_policy_t policy_initial = SURF_NETWORK_LINK_SHARED;
 109   tmgr_trace_t state_trace;
 110
 111   name = xbt_strdup(A_surfxml_network_link_name);
 112   surf_parse_get_double(&bw_initial,A_surfxml_network_link_bandwidth);
 113   surf_parse_get_trace(&bw_trace, A_surfxml_network_link_bandwidth_file);
 114   surf_parse_get_double(&lat_initial,A_surfxml_network_link_latency);
 115   surf_parse_get_trace(&lat_trace, A_surfxml_network_link_latency_file);
 116
 117   xbt_assert0((A_surfxml_network_link_state==A_surfxml_network_link_state_ON)||
 118               (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF),
 119               "Invalid state");
 120   if (A_surfxml_network_link_state==A_surfxml_network_link_state_ON)
 121     state_initial = SURF_NETWORK_LINK_ON;
 122   else if (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF)
 123     state_initial = SURF_NETWORK_LINK_OFF;
 124
 125   if (A_surfxml_network_link_sharing_policy==A_surfxml_network_link_sharing_policy_SHARED)
 126     policy_initial = SURF_NETWORK_LINK_SHARED;
 127   else if (A_surfxml_network_link_sharing_policy==A_surfxml_network_link_sharing_policy_FATPIPE)
 128     policy_initial = SURF_NETWORK_LINK_FATPIPE;
 129
 130   surf_parse_get_trace(&state_trace,A_surfxml_network_link_state_file);
 131
 132   network_link_new(name, bw_initial, bw_trace,
 133                    lat_initial, lat_trace, state_initial, state_trace,
 134                    policy_initial);
 135 }
 136
 137 static int nb_link;
 138 static int link_list_capacity;
 139 static network_link_CM02_t *link_list = NULL;
 140 static int src_id = -1;
 141 static int dst_id = -1;
 142
 143 static void parse_route_set_endpoints(void)
 144 {
 145   src_id = network_card_new(A_surfxml_route_src);
 146   dst_id = network_card_new(A_surfxml_route_dst);
 147   nb_link = 0;
 148   link_list_capacity = 20;
 149   link_list = xbt_new(network_link_CM02_t, link_list_capacity);
 150 }
 151
 152 static void parse_route_elem(void)
 153 {
 154   if (nb_link == link_list_capacity) {
 155     link_list_capacity *= 2;
 156     link_list = xbt_realloc(link_list, (link_list_capacity) * sizeof(network_link_CM02_t));
 157   }
 158   link_list[nb_link++] = xbt_dict_get_or_null(network_link_set, A_surfxml_route_element_name);
 159 }
 160
 161 static void parse_route_set_route(void)
 162 {
 163   route_new(src_id, dst_id, link_list, nb_link);
 164 }
 165
 166 static void parse_file(const char *file)
 167 {
 168   int i;
 169
 170   /* Figuring out the network links */
 171   surf_parse_reset_parser();
 172   ETag_surfxml_network_link_fun=parse_network_link;
 173   surf_parse_open(file);
 174   xbt_assert1((!surf_parse()),"Parse error in %s",file);
 175   surf_parse_close();
 176
 177   /* Figuring out the network cards used */
 178   surf_parse_reset_parser();
 179   STag_surfxml_route_fun=parse_route_set_endpoints;
 180   surf_parse_open(file);
 181   xbt_assert1((!surf_parse()),"Parse error in %s",file);
 182   surf_parse_close();
 183
 184   create_routing_table();
 185
 186   /* Building the routes */
 187   surf_parse_reset_parser();
 188   STag_surfxml_route_fun=parse_route_set_endpoints;
 189   ETag_surfxml_route_element_fun=parse_route_elem;
 190   ETag_surfxml_route_fun=parse_route_set_route;
 191   surf_parse_open(file);
 192   xbt_assert1((!surf_parse()),"Parse error in %s",file);
 193   surf_parse_close();
 194
 195   /* Adding loopback if needed */
 196
 197   for (i = 0; i < card_number; i++)
 198     if(!ROUTE_SIZE(i,i)) {
 199       if(!loopback)
 200         loopback = network_link_new(xbt_strdup("__MSG_loopback__"),
 201                                    498000000, NULL, 0.000015, NULL,
 202                                    SURF_NETWORK_LINK_ON, NULL,
 203                                    SURF_NETWORK_LINK_FATPIPE);
 204       ROUTE_SIZE(i,i)=1;
 205       ROUTE(i,i) = xbt_new0(network_link_CM02_t, 1);
 206       ROUTE(i,i)[0] = loopback;
 207     }
 208 }
 209
 210 static void *name_service(const char *name)
 211 {
 212   network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
 213   return card;
 214 }
 215
 216 static const char *get_resource_name(void *resource_id)
 217 {
 218   return ((network_card_CM02_t) resource_id)->name;
 219 }
 220
 221 static int resource_used(void *resource_id)
 222 {
 223   return lmm_constraint_used(maxmin_system,
 224                              ((network_link_CM02_t) resource_id)->constraint);
 225 }
 226
 227 static int action_free(surf_action_t action)
 228 {
 229   action->using--;
 230   if(!action->using) {
 231     xbt_swag_remove(action, action->state_set);
 232     if(((surf_action_network_CM02_t)action)->variable)
 233       lmm_variable_free(maxmin_system, ((surf_action_network_CM02_t)action)->variable);
 234     free(action);
 235     return 1;
 236   }
 237   return 0;
 238 }
 239
 240 static void action_use(surf_action_t action)
 241 {
 242   action->using++;
 243 }
 244
 245 static void action_cancel(surf_action_t action)
 246 {
 247   return;
 248 }
 249
 250 static void action_recycle(surf_action_t action)
 251 {
 252   return;
 253 }
 254
 255 static void action_change_state(surf_action_t action,
 256                                 e_surf_action_state_t state)
 257 {
 258 /*   if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
 259 /*     if(((surf_action_network_CM02_t)action)->variable) { */
 260 /*       lmm_variable_disable(maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
 261 /*       ((surf_action_network_CM02_t)action)->variable = NULL; */
 262 /*     } */
 263
 264   surf_action_change_state(action, state);
 265   return;
 266 }
 267
 268 static double share_resources(double now)
 269 {
 270   s_surf_action_network_CM02_t s_action;
 271   surf_action_network_CM02_t action = NULL;
 272   xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
 273   double min = generic_maxmin_share_resources(running_actions,
 274                                               xbt_swag_offset(s_action, variable));
 275
 276   xbt_swag_foreach(action, running_actions) {
 277     if(action->latency>0) {
 278       if(min<0) min = action->latency;
 279       else if (action->latency<min) min = action->latency;
 280     }
 281   }
 282
 283   return min;
 284 }
 285
 286 static void update_actions_state(double now, double delta)
 287 {
 288   double deltap = 0.0;
 289   surf_action_network_CM02_t action = NULL;
 290   surf_action_network_CM02_t next_action = NULL;
 291   xbt_swag_t running_actions =
 292       surf_network_resource->common_public->states.running_action_set;
 293   /*
 294   xbt_swag_t failed_actions =
 295       surf_network_resource->common_public->states.failed_action_set;
 296   */
 297
 298   xbt_swag_foreach_safe(action, next_action, running_actions) {
 299     deltap = delta;
 300     if (action->latency > 0) {
 301       if (action->latency > deltap) {
 302         double_update(&(action->latency),deltap);
 303         deltap = 0.0;
 304       } else {
 305         double_update(&(deltap), action->latency);
 306         action->latency = 0.0;
 307       }
 308       if ((action->latency == 0.0) && !(action->suspended))
 309         lmm_update_variable_weight(maxmin_system, action->variable,
 310                                    action->lat_current);
 311     }
 312     double_update(&(action->generic_action.remains),
 313         lmm_variable_getvalue(action->variable) * deltap);
 314     if (action->generic_action.max_duration != NO_MAX_DURATION)
 315       double_update(&(action->generic_action.max_duration), delta);
 316
 317     /*   if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
 318
 319     if ((action->generic_action.remains <= 0) &&
 320         (lmm_get_variable_weight(action->variable)>0)) {
 321       action->generic_action.finish = surf_get_clock();
 322       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 323     } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
 324                (action->generic_action.max_duration <= 0)) {
 325       action->generic_action.finish = surf_get_clock();
 326       action_change_state((surf_action_t) action, SURF_ACTION_DONE);
 327     } else {                    /* Need to check that none of the resource has failed */
 328       lmm_constraint_t cnst = NULL;
 329       int i = 0;
 330       network_link_CM02_t nw_link = NULL;
 331
 332       while ((cnst =
 333               lmm_get_cnst_from_var(maxmin_system, action->variable,
 334                                     i++))) {
 335         nw_link = lmm_constraint_id(cnst);
 336         if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
 337           action->generic_action.finish = surf_get_clock();
 338           action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
 339           break;
 340         }
 341       }
 342     }
 343   }
 344
 345   return;
 346 }
 347
 348 static void update_resource_state(void *id,
 349                                   tmgr_trace_event_t event_type,
 350                                   double value)
 351 {
 352   network_link_CM02_t nw_link = id;
 353   /*   printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
 354   /*     "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
 355   /*     value, event_type); */
 356
 357   if (event_type == nw_link->bw_event) {
 358     nw_link->bw_current = value;
 359     lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
 360                                 nw_link->bw_current);
 361   } else if (event_type == nw_link->lat_event) {
 362     double delta = value - nw_link->lat_current;
 363     lmm_variable_t var = NULL;
 364     surf_action_network_CM02_t action = NULL;
 365
 366     nw_link->lat_current = value;
 367     while (lmm_get_var_from_cnst(maxmin_system, nw_link->constraint, &var)) {
 368       action = lmm_variable_id(var);
 369       action->lat_current += delta;
 370       if(action->rate<0)
 371         lmm_update_variable_bound(maxmin_system, action->variable,
 372                                   SG_TCP_CTE_GAMMA / (2.0 * action->lat_current));
 373       else
 374         lmm_update_variable_bound(maxmin_system, action->variable,
 375                                   min(action->rate,SG_TCP_CTE_GAMMA / (2.0 * action->lat_current)));
 376       if(!(action->suspended))
 377         lmm_update_variable_weight(maxmin_system, action->variable,
 378                                    action->lat_current);
 379     }
 380   } else if (event_type == nw_link->state_event) {
 381     if (value > 0)
 382       nw_link->state_current = SURF_NETWORK_LINK_ON;
 383     else
 384       nw_link->state_current = SURF_NETWORK_LINK_OFF;
 385   } else {
 386     CRITICAL0("Unknown event ! \n");
 387     xbt_abort();
 388   }
 389
 390   return;
 391 }
 392
 393 static surf_action_t communicate(void *src, void *dst, double size, double rate)
 394 {
 395   surf_action_network_CM02_t action = NULL;
 396   network_card_CM02_t card_src = src;
 397   network_card_CM02_t card_dst = dst;
 398   int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
 399   network_link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
 400   int i;
 401
 402   XBT_IN4("(%s,%s,%g,%g)",card_src->name,card_dst->name,size,rate);
 403   xbt_assert2(route_size,"You're trying to send data from %s to %s but there is no connexion between these two cards.", card_src->name, card_dst->name);
 404
 405   action = xbt_new0(s_surf_action_network_CM02_t, 1);
 406
 407   action->generic_action.using = 1;
 408   action->generic_action.cost = size;
 409   action->generic_action.remains = size;
 410   action->generic_action.max_duration = NO_MAX_DURATION;
 411   action->generic_action.start = surf_get_clock();
 412   action->generic_action.finish = -1.0;
 413   action->generic_action.resource_type =
 414       (surf_resource_t) surf_network_resource;
 415   action->suspended = 0;  /* Should be useless because of the
 416                              calloc but it seems to help valgrind... */
 417   action->generic_action.state_set =
 418       surf_network_resource->common_public->states.running_action_set;
 419
 420   xbt_swag_insert(action, action->generic_action.state_set);
 421   action->rate = rate;
 422
 423   action->latency = 0.0;
 424   for (i = 0; i < route_size; i++)
 425     action->latency += route[i]->lat_current;
 426   action->lat_current = action->latency;
 427
 428   if(action->latency>0)
 429     action->variable = lmm_variable_new(maxmin_system, action, 0.0, -1.0,
 430                                         route_size);
 431   else
 432     action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
 433                                         route_size);
 434
 435   if(action->rate<0) {
 436     if(action->lat_current>0)
 437       lmm_update_variable_bound(maxmin_system, action->variable,
 438                                 SG_TCP_CTE_GAMMA / (2.0 * action->lat_current));
 439     else
 440       lmm_update_variable_bound(maxmin_system, action->variable, -1.0);
 441   } else {
 442     if(action->lat_current>0)
 443       lmm_update_variable_bound(maxmin_system, action->variable,
 444                                 min(action->rate,SG_TCP_CTE_GAMMA / (2.0 * action->lat_current)));
 445     else
 446       lmm_update_variable_bound(maxmin_system, action->variable, action->rate);
 447   }
 448
 449   for (i = 0; i < route_size; i++)
 450     lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
 451   XBT_OUT;
 452
 453   return (surf_action_t) action;
 454 }
 455
 456 /* returns an array of network_link_CM02_t */
 457 static const void** get_route(void *src, void *dst) {
 458   network_card_CM02_t card_src = src;
 459   network_card_CM02_t card_dst = dst;
 460   return (const void**) ROUTE(card_src->id, card_dst->id);
 461 }
 462
 463 static int get_route_size(void *src, void *dst) {
 464   network_card_CM02_t card_src = src;
 465   network_card_CM02_t card_dst = dst;
 466   return ROUTE_SIZE(card_src->id, card_dst->id);
 467 }
 468
 469 static const char *get_link_name(const void *link) {
 470   return ((network_link_CM02_t) link)->name;
 471 }
 472
 473 static double get_link_bandwidth(const void *link) {
 474   return ((network_link_CM02_t) link)->bw_current;
 475 }
 476
 477 static double get_link_latency(const void *link) {
 478   return ((network_link_CM02_t) link)->lat_current;
 479 }
 480
 481 static void action_suspend(surf_action_t action)
 482 {
 483   ((surf_action_network_CM02_t) action)->suspended = 1;
 484   lmm_update_variable_weight(maxmin_system,
 485                              ((surf_action_network_CM02_t) action)->variable, 0.0);
 486 }
 487
 488 static void action_resume(surf_action_t action)
 489 {
 490   if(((surf_action_network_CM02_t) action)->suspended) {
 491     lmm_update_variable_weight(maxmin_system,
 492                                ((surf_action_network_CM02_t) action)->variable,
 493                                ((surf_action_network_CM02_t) action)->lat_current);
 494     ((surf_action_network_CM02_t) action)->suspended = 0;
 495   }
 496 }
 497
 498 static int action_is_suspended(surf_action_t action)
 499 {
 500   return ((surf_action_network_CM02_t) action)->suspended;
 501 }
 502
 503 static void action_set_max_duration(surf_action_t action, double duration)
 504 {
 505   action->max_duration = duration;
 506 }
 507
 508 static void finalize(void)
 509 {
 510   int i,j;
 511
 512   xbt_dict_free(&network_card_set);
 513   xbt_dict_free(&network_link_set);
 514   xbt_swag_free(surf_network_resource->common_public->states.
 515                 ready_action_set);
 516   xbt_swag_free(surf_network_resource->common_public->states.
 517                 running_action_set);
 518   xbt_swag_free(surf_network_resource->common_public->states.
 519                 failed_action_set);
 520   xbt_swag_free(surf_network_resource->common_public->states.
 521                 done_action_set);
 522   free(surf_network_resource->common_public);
 523   free(surf_network_resource->common_private);
 524   free(surf_network_resource->extension_public);
 525
 526   free(surf_network_resource);
 527   surf_network_resource = NULL;
 528
 529   loopback = NULL;
 530   for (i = 0; i < card_number; i++)
 531     for (j = 0; j < card_number; j++)
 532       free(ROUTE(i,j));
 533   free(routing_table);
 534   routing_table = NULL;
 535   free(routing_table_size);
 536   routing_table_size = NULL;
 537   card_number = 0;
 538 }
 539
 540 static void surf_network_resource_init_internal(void)
 541 {
 542   s_surf_action_t action;
 543
 544   surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
 545
 546   surf_network_resource->common_private =
 547       xbt_new0(s_surf_resource_private_t, 1);
 548   surf_network_resource->common_public =
 549       xbt_new0(s_surf_resource_public_t, 1);
 550   surf_network_resource->extension_public =
 551       xbt_new0(s_surf_network_resource_extension_public_t, 1);
 552
 553   surf_network_resource->common_public->states.ready_action_set =
 554       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 555   surf_network_resource->common_public->states.running_action_set =
 556       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 557   surf_network_resource->common_public->states.failed_action_set =
 558       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 559   surf_network_resource->common_public->states.done_action_set =
 560       xbt_swag_new(xbt_swag_offset(action, state_hookup));
 561
 562   surf_network_resource->common_public->name_service = name_service;
 563   surf_network_resource->common_public->get_resource_name =
 564       get_resource_name;
 565   surf_network_resource->common_public->action_get_state =
 566       surf_action_get_state;
 567   surf_network_resource->common_public->action_get_start_time =
 568       surf_action_get_start_time;
 569   surf_network_resource->common_public->action_get_finish_time =
 570       surf_action_get_finish_time;
 571   surf_network_resource->common_public->action_free = action_free;
 572   surf_network_resource->common_public->action_use = action_use;
 573   surf_network_resource->common_public->action_cancel = action_cancel;
 574   surf_network_resource->common_public->action_recycle = action_recycle;
 575   surf_network_resource->common_public->action_change_state =
 576       action_change_state;
 577   surf_network_resource->common_public->action_set_data = surf_action_set_data;
 578   surf_network_resource->common_public->name = "network";
 579
 580   surf_network_resource->common_private->resource_used = resource_used;
 581   surf_network_resource->common_private->share_resources = share_resources;
 582   surf_network_resource->common_private->update_actions_state =
 583       update_actions_state;
 584   surf_network_resource->common_private->update_resource_state =
 585       update_resource_state;
 586   surf_network_resource->common_private->finalize = finalize;
 587
 588   surf_network_resource->common_public->suspend = action_suspend;
 589   surf_network_resource->common_public->resume = action_resume;
 590   surf_network_resource->common_public->is_suspended = action_is_suspended;
 591   surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
 592
 593   surf_network_resource->extension_public->communicate = communicate;
 594   surf_network_resource->extension_public->get_route = get_route;
 595   surf_network_resource->extension_public->get_route_size = get_route_size;
 596   surf_network_resource->extension_public->get_link_name = get_link_name;
 597   surf_network_resource->extension_public->get_link_bandwidth = get_link_bandwidth;
 598   surf_network_resource->extension_public->get_link_latency = get_link_latency;
 599
 600   network_link_set = xbt_dict_new();
 601   network_card_set = xbt_dict_new();
 602
 603   xbt_assert0(maxmin_system, "surf_init has to be called first!");
 604 }
 605
 606 /***************************************************************************/
 607 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
 608 /***************************************************************************/
 609 /* @TechReport{      rr-lip2002-40, */
 610 /*   author        = {Henri Casanova and Loris Marchal}, */
 611 /*   institution   = {LIP}, */
 612 /*   title         = {A Network Model for Simulation of Grid Application}, */
 613 /*   number        = {2002-40}, */
 614 /*   month         = {oct}, */
 615 /*   year          = {2002} */
 616 /* } */
 617 void surf_network_resource_init_CM02(const char *filename)
 618 {
 619   if (surf_network_resource)
 620     return;
 621   surf_network_resource_init_internal();
 622   parse_file(filename);
 623   xbt_dynar_push(resource_list, &surf_network_resource);
 624 }