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