src/surf/sg_platf.cpp

   1 /* Copyright (c) 2006-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "xbt/misc.h"
   8 #include "xbt/log.h"
   9 #include "xbt/str.h"
  10 #include "xbt/dict.h"
  11 #include "xbt/RngStream.h"
  12 #include "simgrid/platf_interface.h"
  13 #include "surf/surf_routing.h"
  14 #include "surf/surf.h"
  15
  16 #include "src/simix/smx_private.h"
  17
  18 #include "cpu_interface.hpp"
  19 #include "host_interface.hpp"
  20
  21 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  22 xbt_dynar_t sg_platf_link_cb_list = NULL;   // of sg_platf_link_cb_t
  23 xbt_dynar_t sg_platf_peer_cb_list = NULL; // of sg_platf_peer_cb_t
  24 xbt_dynar_t sg_platf_cluster_cb_list = NULL; // of sg_platf_cluster_cb_t
  25 xbt_dynar_t sg_platf_cabinet_cb_list = NULL; // of sg_platf_cluster_cb_t
  26 xbt_dynar_t sg_platf_postparse_cb_list = NULL; // of void_f_void_t
  27 xbt_dynar_t sg_platf_prop_cb_list = NULL; // of sg_platf_prop_cb_t
  28
  29 xbt_dynar_t sg_platf_route_cb_list = NULL; // of sg_platf_route_cb_t
  30 xbt_dynar_t sg_platf_ASroute_cb_list = NULL; // of sg_platf_ASroute_cb_t
  31 xbt_dynar_t sg_platf_bypassRoute_cb_list = NULL; // of sg_platf_bypassRoute_cb_t
  32 xbt_dynar_t sg_platf_bypassASroute_cb_list = NULL; // of sg_platf_bypassASroute_cb_t
  33
  34 xbt_dynar_t sg_platf_trace_cb_list = NULL;
  35 xbt_dynar_t sg_platf_trace_connect_cb_list = NULL;
  36
  37 /* ***************************************** */
  38 /* TUTORIAL: New TAG                         */
  39
  40 xbt_dynar_t sg_platf_gpu_cb_list = NULL;
  41 /* ***************************************** */
  42
  43
  44 static int surf_parse_models_setup_already_called = 0;
  45
  46 /* one RngStream for the platform, to respect some statistic rules */
  47 static RngStream sg_platf_rng_stream = NULL;
  48
  49 /** Module management function: creates all internal data structures */
  50 void sg_platf_init(void) {
  51
  52   //FIXME : Ugly, but useful...
  53   if (sg_platf_gpu_cb_list)
  54     return; //Already initialized, so do nothing...
  55
  56   sg_platf_link_cb_list = xbt_dynar_new(sizeof(sg_platf_link_cb_t), NULL);
  57   sg_platf_peer_cb_list = xbt_dynar_new(sizeof(sg_platf_peer_cb_t), NULL);
  58   sg_platf_cluster_cb_list = xbt_dynar_new(sizeof(sg_platf_cluster_cb_t), NULL);
  59   sg_platf_cabinet_cb_list = xbt_dynar_new(sizeof(sg_platf_cabinet_cb_t), NULL);
  60   sg_platf_postparse_cb_list = xbt_dynar_new(sizeof(sg_platf_link_cb_t),NULL);
  61   sg_platf_prop_cb_list = xbt_dynar_new(sizeof(sg_platf_prop_cb_t),NULL);
  62
  63   sg_platf_route_cb_list = xbt_dynar_new(sizeof(sg_platf_route_cb_t), NULL);
  64   sg_platf_ASroute_cb_list = xbt_dynar_new(sizeof(sg_platf_route_cb_t), NULL);
  65   sg_platf_bypassRoute_cb_list = xbt_dynar_new(sizeof(sg_platf_route_cb_t), NULL);
  66   sg_platf_bypassASroute_cb_list = xbt_dynar_new(sizeof(sg_platf_route_cb_t), NULL);
  67
  68   sg_platf_trace_cb_list = xbt_dynar_new(sizeof(sg_platf_trace_cb_t), NULL);
  69   sg_platf_trace_connect_cb_list = xbt_dynar_new(sizeof(sg_platf_trace_connect_cb_t), NULL);
  70
  71   /* ***************************************** */
  72   /* TUTORIAL: New TAG                         */
  73
  74   sg_platf_gpu_cb_list = xbt_dynar_new(sizeof(sg_platf_gpu_cb_t), NULL);
  75   /* ***************************************** */
  76 }
  77 /** Module management function: frees all internal data structures */
  78 void sg_platf_exit(void) {
  79   xbt_dynar_free(&sg_platf_link_cb_list);
  80   xbt_dynar_free(&sg_platf_postparse_cb_list);
  81   xbt_dynar_free(&sg_platf_peer_cb_list);
  82   xbt_dynar_free(&sg_platf_cluster_cb_list);
  83   xbt_dynar_free(&sg_platf_cabinet_cb_list);
  84   xbt_dynar_free(&sg_platf_prop_cb_list);
  85
  86   xbt_dynar_free(&sg_platf_trace_cb_list);
  87   xbt_dynar_free(&sg_platf_trace_connect_cb_list);
  88
  89   xbt_dynar_free(&sg_platf_route_cb_list);
  90   xbt_dynar_free(&sg_platf_ASroute_cb_list);
  91   xbt_dynar_free(&sg_platf_bypassRoute_cb_list);
  92   xbt_dynar_free(&sg_platf_bypassASroute_cb_list);
  93
  94   /* ***************************************** */
  95   /* TUTORIAL: New TAG                         */
  96
  97   xbt_dynar_free(&sg_platf_gpu_cb_list);
  98
  99   /* ***************************************** */
 100
 101   /* make sure that we will reinit the models while loading the platf once reinited */
 102   surf_parse_models_setup_already_called = 0;
 103 }
 104
 105 void sg_platf_new_host(sg_platf_host_cbarg_t host)
 106 {
 107   xbt_assert(! sg_host_by_name(host->id),
 108                      "Refusing to create a second host named '%s'.", host->id);
 109
 110   RoutingEdge *net = NULL;
 111   As* current_routing = routing_get_current();
 112   if (current_routing)
 113     net = routing_add_host(current_routing, host);
 114
 115   Cpu *cpu = surf_cpu_model_pm->createCpu(
 116         host->id,
 117         host->power_peak,
 118         host->pstate,
 119         host->power_scale,
 120         host->power_trace,
 121         host->core_amount,
 122         host->initial_state,
 123         host->state_trace,
 124         host->properties);
 125   surf_host_model->createHost(host->id, net, cpu);
 126
 127   if (TRACE_is_enabled() && TRACE_needs_platform())
 128     sg_instr_new_host(host);
 129 }
 130
 131 /**
 132  * \brief Add a "router" to the network element list
 133  */
 134 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 135 {
 136   As* current_routing = routing_get_current();
 137
 138   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 139     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 140   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 141              "Reading a router, processing unit \"%s\" already exists",
 142              router->id);
 143
 144   RoutingEdge *info = new RoutingEdgeImpl(xbt_strdup(router->id),
 145                                             -1,
 146                                             SURF_NETWORK_ELEMENT_ROUTER,
 147                                             current_routing);
 148   info->setId(current_routing->parsePU(info));
 149   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 150   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 151   routingEdgeCreatedCallbacks(info);
 152
 153   if (router->coord && strcmp(router->coord, "")) {
 154     unsigned int cursor;
 155     char*str;
 156
 157     if (!COORD_ASR_LEVEL)
 158       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 159     /* Pre-parse the host coordinates */
 160     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 161     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 162     xbt_dynar_foreach(ctn_str,cursor, str) {
 163       double val = atof(str);
 164       xbt_dynar_push(ctn,&val);
 165     }
 166     xbt_dynar_shrink(ctn, 0);
 167     xbt_dynar_free(&ctn_str);
 168     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 169     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 170   }
 171
 172   if (TRACE_is_enabled())
 173     sg_instr_new_router(router);
 174 }
 175
 176 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 177   unsigned int iterator;
 178   sg_platf_link_cb_t fun;
 179   xbt_dynar_foreach(sg_platf_link_cb_list, iterator, fun) {
 180     fun(link);
 181   }
 182 }
 183
 184 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer){
 185   unsigned int iterator;
 186   sg_platf_peer_cb_t fun;
 187   xbt_dynar_foreach(sg_platf_peer_cb_list, iterator, fun) {
 188     fun(peer);
 189   }
 190 }
 191 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster){
 192   unsigned int iterator;
 193   sg_platf_cluster_cb_t fun;
 194   xbt_dynar_foreach(sg_platf_cluster_cb_list, iterator, fun) {
 195     fun(cluster);
 196   }
 197 }
 198 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet){
 199   unsigned int iterator;
 200   sg_platf_cabinet_cb_t fun;
 201   xbt_dynar_foreach(sg_platf_cabinet_cb_list, iterator, fun) {
 202     fun(cabinet);
 203   }
 204 }
 205 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 206 {
 207   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 208                "Reading a storage, processing unit \"%s\" already exists", storage->id);
 209
 210   // Verification of an existing type_id
 211 #ifndef NDEBUG
 212   void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 213 #endif
 214   xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
 215
 216   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 217       storage->id,
 218       storage->type_id,
 219       storage->content);
 220
 221   xbt_lib_set(storage_lib,
 222       storage->id,
 223       ROUTING_STORAGE_LEVEL,
 224       (void *) xbt_strdup(storage->type_id));
 225
 226   void* stype = xbt_lib_get_or_null(storage_type_lib,
 227                                     storage->type_id,
 228                                     ROUTING_STORAGE_TYPE_LEVEL);
 229   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
 230
 231   // if storage content is not specified use the content of storage_type if exist
 232   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 233     storage->content = ((storage_type_t) stype)->content;
 234     storage->content_type = ((storage_type_t) stype)->content_type;
 235     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 236         storage->id,((storage_type_t) stype)->content_type,
 237         ((storage_type_t) stype)->type_id);
 238   }
 239
 240   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 241       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 242       "\n\t\tproperties '%p''\n",
 243       storage->id,
 244       ((storage_type_t) stype)->model,
 245       ((storage_type_t) stype)->type_id,
 246       storage->content,
 247       storage->content_type,
 248       storage->properties);
 249
 250   surf_storage_model->createStorage(storage->id,
 251                                      ((storage_type_t) stype)->type_id,
 252                                      storage->content,
 253                                      storage->content_type,
 254                                      storage->properties,
 255                                      storage->attach);
 256 }
 257 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 258
 259   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 260                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 261
 262   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 263   stype->model = xbt_strdup(storage_type->model);
 264   stype->properties = storage_type->properties;
 265   stype->content = xbt_strdup(storage_type->content);
 266   stype->content_type = xbt_strdup(storage_type->content_type);
 267   stype->type_id = xbt_strdup(storage_type->id);
 268   stype->size = storage_type->size;
 269   stype->model_properties = storage_type->model_properties;
 270
 271   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 272       "content '%s', and content_type '%s'",
 273       stype->type_id,
 274       stype->model,
 275       storage_type->content,
 276       storage_type->content_type);
 277
 278   xbt_lib_set(storage_type_lib,
 279       stype->type_id,
 280       ROUTING_STORAGE_TYPE_LEVEL,
 281       (void *) stype);
 282 }
 283 void sg_platf_new_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 284 {
 285   THROW_UNIMPLEMENTED;
 286 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 287 //  mnt->id = xbt_strdup(mstorage->type_id);
 288 //  mnt->name = xbt_strdup(mstorage->name);
 289 //
 290 //  if(!mount_list){
 291 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 292 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 293 //  }
 294 //  xbt_dynar_push(mount_list,(void *) mnt);
 295 //  free(mnt->id);
 296 //  free(mnt->name);
 297 //  xbt_free(mnt);
 298 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 299 }
 300
 301 static void mount_free(void *p)
 302 {
 303   mount_t mnt = (mount_t) p;
 304   xbt_free(mnt->name);
 305 }
 306
 307 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 308   // Verification of an existing storage
 309 #ifndef NDEBUG
 310   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL);
 311 #endif
 312   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 313
 314   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 315
 316   s_mount_t mnt;
 317   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 318   mnt.name = xbt_strdup(mount->name);
 319
 320   if(!mount_list){
 321     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 322     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 323   }
 324   xbt_dynar_push(mount_list, &mnt);
 325 }
 326
 327 void sg_platf_new_route(sg_platf_route_cbarg_t route) {
 328   unsigned int iterator;
 329   sg_platf_route_cb_t fun;
 330   xbt_dynar_foreach(sg_platf_route_cb_list, iterator, fun) {
 331     fun(route);
 332   }
 333 }
 334 void sg_platf_new_ASroute(sg_platf_route_cbarg_t ASroute) {
 335   unsigned int iterator;
 336   sg_platf_route_cb_t fun;
 337   xbt_dynar_foreach(sg_platf_ASroute_cb_list, iterator, fun) {
 338     fun(ASroute);
 339   }
 340 }
 341 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute) {
 342   unsigned int iterator;
 343   sg_platf_route_cb_t fun;
 344   xbt_dynar_foreach(sg_platf_bypassRoute_cb_list, iterator, fun) {
 345     fun(bypassRoute);
 346   }
 347 }
 348 void sg_platf_new_bypassASroute(sg_platf_route_cbarg_t bypassASroute) {
 349   unsigned int iterator;
 350   sg_platf_route_cb_t fun;
 351   xbt_dynar_foreach(sg_platf_bypassASroute_cb_list, iterator, fun) {
 352     fun(bypassASroute);
 353   }
 354 }
 355 void sg_platf_new_prop(sg_platf_prop_cbarg_t prop) {
 356   unsigned int iterator;
 357   sg_platf_prop_cb_t fun;
 358   xbt_dynar_foreach(sg_platf_prop_cb_list, iterator, fun) {
 359     fun(prop);
 360   }
 361 }
 362 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace) {
 363   unsigned int iterator;
 364   sg_platf_trace_cb_t fun;
 365   xbt_dynar_foreach(sg_platf_trace_cb_list, iterator, fun) {
 366     fun(trace);
 367   }
 368 }
 369 void sg_platf_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect) {
 370   unsigned int iterator;
 371   sg_platf_trace_connect_cb_t fun;
 372   xbt_dynar_foreach(sg_platf_trace_connect_cb_list, iterator, fun) {
 373     fun(trace_connect);
 374   }
 375 }
 376
 377 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 378 {
 379   if (!simix_global)
 380     xbt_die("Cannot create process without SIMIX.");
 381
 382   sg_host_t host = sg_host_by_name(process->host);
 383   if (!host)
 384     THROWF(arg_error, 0, "Host '%s' unknown", process->host);
 385   xbt_main_func_t parse_code = SIMIX_get_registered_function(process->function);
 386   xbt_assert(parse_code, "Function '%s' unknown", process->function);
 387
 388   double start_time = process->start_time;
 389   double kill_time  = process->kill_time;
 390   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 391
 392   smx_process_arg_t arg = NULL;
 393   smx_process_t process_created = NULL;
 394
 395   arg = xbt_new0(s_smx_process_arg_t, 1);
 396   arg->code = parse_code;
 397   arg->data = NULL;
 398   arg->hostname = sg_host_get_name(host);
 399   arg->argc = process->argc;
 400   arg->argv = xbt_new(char *,process->argc);
 401   int i;
 402   for (i=0; i<process->argc; i++)
 403     arg->argv[i] = xbt_strdup(process->argv[i]);
 404   arg->name = xbt_strdup(arg->argv[0]);
 405   arg->kill_time = kill_time;
 406   arg->properties = current_property_set;
 407   if (!sg_host_simix(host)->boot_processes) {
 408     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 409   }
 410   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 411
 412   if (start_time > SIMIX_get_clock()) {
 413     arg = xbt_new0(s_smx_process_arg_t, 1);
 414     arg->name = (char*)(process->argv)[0];
 415     arg->code = parse_code;
 416     arg->data = NULL;
 417     arg->hostname = sg_host_get_name(host);
 418     arg->argc = process->argc;
 419     arg->argv = (char**)(process->argv);
 420     arg->kill_time = kill_time;
 421     arg->properties = current_property_set;
 422
 423     XBT_DEBUG("Process %s(%s) will be started at time %f", arg->name,
 424            arg->hostname, start_time);
 425     SIMIX_timer_set(start_time, [](void* arg) {
 426       SIMIX_process_create_from_wrapper((smx_process_arg_t) arg);
 427     }, arg);
 428   } else {                      // start_time <= SIMIX_get_clock()
 429     XBT_DEBUG("Starting Process %s(%s) right now", process->argv[0], sg_host_get_name(host));
 430
 431     if (simix_global->create_process_function)
 432       process_created = simix_global->create_process_function(
 433                                             (char*)(process->argv)[0],
 434                                             parse_code,
 435                                             NULL,
 436                                             sg_host_get_name(host),
 437                                             kill_time,
 438                                             process->argc,
 439                                             (char**)(process->argv),
 440                                             current_property_set,
 441                                             auto_restart, NULL);
 442     else
 443       process_created = simcall_process_create((char*)(process->argv)[0], parse_code, NULL, sg_host_get_name(host), kill_time, process->argc,
 444           (char**)process->argv, current_property_set,auto_restart);
 445
 446     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 447     if (!process_created) {
 448       return;
 449     }
 450   }
 451   current_property_set = NULL;
 452 }
 453
 454 void sg_platf_route_begin (sg_platf_route_cbarg_t route){
 455   route->link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 456 }
 457 void sg_platf_ASroute_begin (sg_platf_route_cbarg_t ASroute){
 458   ASroute->link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 459 }
 460
 461 void sg_platf_route_end (sg_platf_route_cbarg_t route){
 462   sg_platf_new_route(route);
 463 }
 464 void sg_platf_ASroute_end (sg_platf_route_cbarg_t ASroute){
 465   sg_platf_new_ASroute(ASroute);
 466 }
 467
 468 void sg_platf_route_add_link (const char* link_id, sg_platf_route_cbarg_t route){
 469   char *link_name = xbt_strdup(link_id);
 470   xbt_dynar_push(route->link_list, &link_name);
 471 }
 472 void sg_platf_ASroute_add_link (const char* link_id, sg_platf_route_cbarg_t ASroute){
 473   char *link_name = xbt_strdup(link_id);
 474   xbt_dynar_push(ASroute->link_list, &link_name);
 475 }
 476
 477 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 478
 479 void sg_platf_end() {
 480   unsigned int iterator;
 481   void_f_void_t fun;
 482   xbt_dynar_foreach(sg_platf_postparse_cb_list, iterator, fun) {
 483     fun();
 484   }
 485 }
 486
 487 void sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 488 {
 489   if (!surf_parse_models_setup_already_called) {
 490     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 491      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 492      *
 493      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 494      * (FIXME: check it out by creating a file beginning with one of these tags)
 495      * but cluster and peer create ASes internally, so putting the code in there is ok.
 496      *
 497      * TODO, There used to be a guard protecting here against
 498      * xbt_dynar_length(sg_platf_AS_begin_cb_list) because we don't want to
 499      * initialize the models if we are parsing the file to get the deployment.
 500      * That could happen if the same file would be used for platf and deploy:
 501      * it'd contain AS tags even during the deploy parsing. Removing that guard
 502      * would result of the models to get re-inited when parsing for deploy.
 503      * Currently using the same file for platform and deployment is broken
 504      * however. This guard will have to ba adapted in order to make this feature
 505      * work again.
 506      */
 507     surf_parse_models_setup_already_called = 1;
 508     surf_config_models_setup();
 509   }
 510
 511   routing_AS_begin(AS);
 512   if (TRACE_is_enabled())
 513     sg_instr_AS_begin(AS);
 514 }
 515
 516 void sg_platf_new_AS_end()
 517 {
 518   routing_AS_end();
 519   if (TRACE_is_enabled())
 520     sg_instr_AS_end();
 521 }
 522
 523 /* ***************************************** */
 524 /* TUTORIAL: New TAG                         */
 525
 526 void sg_platf_new_gpu(sg_platf_gpu_cbarg_t gpu) {
 527   unsigned int iterator;
 528   void_f_void_t fun;
 529   xbt_dynar_foreach(sg_platf_gpu_cb_list, iterator, fun) {
 530     fun();
 531   }
 532 }
 533
 534 void sg_platf_gpu_add_cb(sg_platf_gpu_cb_t fct) {
 535   xbt_dynar_push(sg_platf_gpu_cb_list, &fct);
 536 }
 537
 538 /* ***************************************** */
 539
 540 void sg_platf_link_add_cb(sg_platf_link_cb_t fct) {
 541   xbt_dynar_push(sg_platf_link_cb_list, &fct);
 542 }
 543 void sg_platf_peer_add_cb(sg_platf_peer_cb_t fct) {
 544   xbt_dynar_push(sg_platf_peer_cb_list, &fct);
 545 }
 546 void sg_platf_cluster_add_cb(sg_platf_cluster_cb_t fct) {
 547   xbt_dynar_push(sg_platf_cluster_cb_list, &fct);
 548 }
 549 void sg_platf_cabinet_add_cb(sg_platf_cabinet_cb_t fct) {
 550   xbt_dynar_push(sg_platf_cabinet_cb_list, &fct);
 551 }
 552 void sg_platf_postparse_add_cb(void_f_void_t fct) {
 553   xbt_dynar_push(sg_platf_postparse_cb_list, &fct);
 554 }
 555 void sg_platf_route_add_cb(sg_platf_route_cb_t fct) {
 556   xbt_dynar_push(sg_platf_route_cb_list, &fct);
 557 }
 558 void sg_platf_ASroute_add_cb(sg_platf_route_cb_t fct) {
 559   xbt_dynar_push(sg_platf_ASroute_cb_list, &fct);
 560 }
 561 void sg_platf_bypassRoute_add_cb(sg_platf_route_cb_t fct) {
 562   xbt_dynar_push(sg_platf_bypassRoute_cb_list, &fct);
 563 }
 564 void sg_platf_bypassASroute_add_cb(sg_platf_route_cb_t fct) {
 565   xbt_dynar_push(sg_platf_bypassASroute_cb_list, &fct);
 566 }
 567 void sg_platf_prop_add_cb(sg_platf_prop_cb_t fct) {
 568   xbt_dynar_push(sg_platf_prop_cb_list, &fct);
 569 }
 570 void sg_platf_trace_add_cb(sg_platf_trace_cb_t fct) {
 571   xbt_dynar_push(sg_platf_trace_cb_list, &fct);
 572 }
 573 void sg_platf_trace_connect_add_cb(sg_platf_trace_connect_cb_t fct) {
 574   xbt_dynar_push(sg_platf_trace_connect_cb_list, &fct);
 575 }
 576 void sg_platf_rng_stream_init(unsigned long seed[6]) {
 577   RngStream_SetPackageSeed(seed);
 578   sg_platf_rng_stream = RngStream_CreateStream(NULL);
 579 }
 580
 581 RngStream sg_platf_rng_stream_get(const char* id) {
 582   RngStream stream = NULL;
 583   unsigned int id_hash;
 584
 585   stream = RngStream_CopyStream(sg_platf_rng_stream);
 586   id_hash = xbt_str_hash(id);
 587   RngStream_AdvanceState(stream, 0, (long)id_hash);
 588
 589   return stream;
 590 }