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 "simgrid/s4u/engine.hpp"
   8 #include "src/kernel/EngineImpl.hpp"
   9 #include "src/simix/smx_private.h"
  10
  11 #include "src/include/simgrid/sg_config.h"
  12
  13 #include "src/surf/HostImpl.hpp"
  14 #include "src/surf/cpu_interface.hpp"
  15 #include "src/surf/network_interface.hpp"
  16
  17 #include "src/kernel/routing/ClusterZone.hpp"
  18 #include "src/kernel/routing/DijkstraZone.hpp"
  19 #include "src/kernel/routing/DragonflyZone.hpp"
  20 #include "src/kernel/routing/EmptyZone.hpp"
  21 #include "src/kernel/routing/FatTreeZone.hpp"
  22 #include "src/kernel/routing/FloydZone.hpp"
  23 #include "src/kernel/routing/FullZone.hpp"
  24 #include "src/kernel/routing/NetCard.hpp"
  25 #include "src/kernel/routing/NetZoneImpl.hpp"
  26 #include "src/kernel/routing/TorusZone.hpp"
  27 #include "src/kernel/routing/VivaldiZone.hpp"
  28
  29 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  30
  31 XBT_PRIVATE xbt_dynar_t mount_list = nullptr;
  32
  33 namespace simgrid {
  34 namespace surf {
  35
  36 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  37 simgrid::xbt::signal<void(void)> on_postparse;
  38
  39 }
  40 }
  41
  42 static int surf_parse_models_setup_already_called = 0;
  43
  44 /** The current AS in the parsing */
  45 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
  46 static simgrid::kernel::routing::NetZoneImpl* routing_get_current()
  47 {
  48   return current_routing;
  49 }
  50
  51 /** Module management function: creates all internal data structures */
  52 void sg_platf_init() {
  53 }
  54
  55 /** Module management function: frees all internal data structures */
  56 void sg_platf_exit() {
  57   simgrid::surf::on_cluster.disconnect_all_slots();
  58   simgrid::surf::on_postparse.disconnect_all_slots();
  59
  60   /* make sure that we will reinit the models while loading the platf once reinited */
  61   surf_parse_models_setup_already_called = 0;
  62   surf_parse_lex_destroy();
  63 }
  64
  65 /** @brief Add an host to the current AS */
  66 void sg_platf_new_host(sg_platf_host_cbarg_t args)
  67 {
  68   std::unordered_map<std::string, std::string> props;
  69   if (args->properties) {
  70     xbt_dict_cursor_t cursor=nullptr;
  71     char *key,*data;
  72     xbt_dict_foreach (args->properties, cursor, key, data)
  73       props[key] = data;
  74     xbt_dict_free(&args->properties);
  75   }
  76
  77   simgrid::s4u::Host* host =
  78       routing_get_current()->createHost(args->id, &args->speed_per_pstate, args->core_amount, &props);
  79
  80   host->pimpl_->storage_ = mount_list;
  81   xbt_lib_set(storage_lib, args->id, ROUTING_STORAGE_HOST_LEVEL, static_cast<void*>(mount_list));
  82   mount_list = nullptr;
  83
  84   /* Change from the defaults */
  85   if (args->state_trace)
  86     host->pimpl_cpu->setStateTrace(args->state_trace);
  87   if (args->speed_trace)
  88     host->pimpl_cpu->setSpeedTrace(args->speed_trace);
  89   if (args->pstate != 0)
  90     host->pimpl_cpu->setPState(args->pstate);
  91   if (args->coord && strcmp(args->coord, ""))
  92     new simgrid::kernel::routing::vivaldi::Coords(host->pimpl_netcard, args->coord);
  93
  94   if (TRACE_is_enabled() && TRACE_needs_platform())
  95     sg_instr_new_host(*host);
  96 }
  97
  98 /** @brief Add a "router" to the network element list */
  99 simgrid::kernel::routing::NetCard* sg_platf_new_router(const char* name, const char* coords)
 100 {
 101   simgrid::kernel::routing::NetZoneImpl* current_routing = routing_get_current();
 102
 103   if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
 104     current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::base;
 105   xbt_assert(nullptr == simgrid::s4u::Engine::instance()->netcardByNameOrNull(name),
 106              "Refusing to create a router named '%s': this name already describes a node.", name);
 107
 108   simgrid::kernel::routing::NetCard* netcard =
 109       new simgrid::kernel::routing::NetCard(name, simgrid::kernel::routing::NetCard::Type::Router, current_routing);
 110   XBT_DEBUG("Router '%s' has the id %d", name, netcard->id());
 111
 112   if (coords && strcmp(coords, ""))
 113     new simgrid::kernel::routing::vivaldi::Coords(netcard, coords);
 114
 115   sg_instr_new_router(name);
 116
 117   return netcard;
 118 }
 119
 120 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 121   std::vector<char*> names;
 122
 123   if (link->policy == SURF_LINK_FULLDUPLEX) {
 124     names.push_back(bprintf("%s_UP", link->id));
 125     names.push_back(bprintf("%s_DOWN", link->id));
 126   } else {
 127     names.push_back(xbt_strdup(link->id));
 128   }
 129   for (auto link_name : names) {
 130     Link* l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy);
 131
 132     if (link->properties) {
 133       xbt_dict_cursor_t cursor = nullptr;
 134       char *key, *data;
 135       xbt_dict_foreach (link->properties, cursor, key, data)
 136         l->setProperty(key, data);
 137       xbt_dict_free(&link->properties);
 138     }
 139
 140     if (link->latency_trace)
 141       l->setLatencyTrace(link->latency_trace);
 142     if (link->bandwidth_trace)
 143       l->setBandwidthTrace(link->bandwidth_trace);
 144     if (link->state_trace)
 145       l->setStateTrace(link->state_trace);
 146
 147     xbt_free(link_name);
 148   }
 149 }
 150
 151 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 152 {
 153   using simgrid::kernel::routing::ClusterZone;
 154   using simgrid::kernel::routing::DragonflyZone;
 155   using simgrid::kernel::routing::FatTreeZone;
 156   using simgrid::kernel::routing::TorusZone;
 157
 158   int rankId=0;
 159
 160   s_sg_platf_link_cbarg_t link;
 161
 162   // What an inventive way of initializing the AS that I have as ancestor :-(
 163   s_sg_platf_AS_cbarg_t AS;
 164   AS.id = cluster->id;
 165   switch (cluster->topology) {
 166   case SURF_CLUSTER_TORUS:
 167     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 168     break;
 169   case SURF_CLUSTER_DRAGONFLY:
 170     AS.routing = A_surfxml_AS_routing_ClusterDragonfly;
 171     break;
 172   case SURF_CLUSTER_FAT_TREE:
 173     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 174     break;
 175   default:
 176     AS.routing = A_surfxml_AS_routing_Cluster;
 177     break;
 178   }
 179   sg_platf_new_AS_begin(&AS);
 180   simgrid::kernel::routing::ClusterZone* current_as = static_cast<ClusterZone*>(routing_get_current());
 181   current_as->parse_specific_arguments(cluster);
 182
 183   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 184     current_as->linkCountPerNode_++;
 185     current_as->hasLoopback_ = 1;
 186   }
 187
 188   if(cluster->limiter_link!=0){
 189     current_as->linkCountPerNode_++;
 190     current_as->hasLimiter_ = 1;
 191   }
 192
 193   for (int i : *cluster->radicals) {
 194     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 195     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 196
 197     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 198
 199     s_sg_platf_host_cbarg_t host;
 200     memset(&host, 0, sizeof(host));
 201     host.id = host_id;
 202     if ((cluster->properties != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 203       xbt_dict_cursor_t cursor=nullptr;
 204       char *key,*data;
 205       host.properties = xbt_dict_new_homogeneous(free);
 206
 207       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 208         xbt_dict_set(host.properties, key, xbt_strdup(data), nullptr);
 209       }
 210     }
 211
 212     host.speed_per_pstate.push_back(cluster->speed);
 213     host.pstate = 0;
 214     host.core_amount = cluster->core_amount;
 215     host.coord = "";
 216     sg_platf_new_host(&host);
 217     XBT_DEBUG("</host>");
 218
 219     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 220
 221     // All links are saved in a matrix;
 222     // every row describes a single node; every node may have multiple links.
 223     // the first column may store a link from x to x if p_has_loopback is set
 224     // the second column may store a limiter link if p_has_limiter is set
 225     // other columns are to store one or more link for the node
 226
 227     //add a loopback link
 228     Link* linkUp   = nullptr;
 229     Link* linkDown = nullptr;
 230     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 231       char *tmp_link = bprintf("%s_loopback", link_id);
 232       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->loopback_bw);
 233
 234       memset(&link, 0, sizeof(link));
 235       link.id        = tmp_link;
 236       link.bandwidth = cluster->loopback_bw;
 237       link.latency   = cluster->loopback_lat;
 238       link.policy    = SURF_LINK_FATPIPE;
 239       sg_platf_new_link(&link);
 240       linkUp   = Link::byName(tmp_link);
 241       linkDown = Link::byName(tmp_link);
 242       free(tmp_link);
 243
 244       auto as_cluster = static_cast<ClusterZone*>(current_as);
 245       as_cluster->privateLinks_.insert({rankId * as_cluster->linkCountPerNode_, {linkUp, linkDown}});
 246     }
 247
 248     //add a limiter link (shared link to account for maximal bandwidth of the node)
 249     linkUp   = nullptr;
 250     linkDown = nullptr;
 251     if(cluster->limiter_link!=0){
 252       char *tmp_link = bprintf("%s_limiter", link_id);
 253       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 254
 255       memset(&link, 0, sizeof(link));
 256       link.id = tmp_link;
 257       link.bandwidth = cluster->limiter_link;
 258       link.latency = 0;
 259       link.policy = SURF_LINK_SHARED;
 260       sg_platf_new_link(&link);
 261       linkUp = linkDown = Link::byName(tmp_link);
 262       free(tmp_link);
 263       current_as->privateLinks_.insert(
 264           {rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_, {linkUp, linkDown}});
 265     }
 266
 267     //call the cluster function that adds the others links
 268     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 269       static_cast<FatTreeZone*>(current_as)->addProcessingNode(i);
 270     }
 271     else {
 272       current_as->create_links_for_node(cluster, i, rankId,
 273           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 274     }
 275     xbt_free(link_id);
 276     xbt_free(host_id);
 277     rankId++;
 278   }
 279
 280   // Add a router.
 281   XBT_DEBUG(" ");
 282   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 283   if (!cluster->router_id || !strcmp(cluster->router_id, "")) {
 284     char* newid         = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 285     current_as->router_ = sg_platf_new_router(newid, NULL);
 286     free(newid);
 287   } else {
 288     current_as->router_ = sg_platf_new_router(cluster->router_id, NULL);
 289   }
 290
 291   //Make the backbone
 292   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 293
 294     memset(&link, 0, sizeof(link));
 295     link.id        = bprintf("%s_backbone", cluster->id);
 296     link.bandwidth = cluster->bb_bw;
 297     link.latency   = cluster->bb_lat;
 298     link.policy    = cluster->bb_sharing_policy;
 299
 300     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 301     sg_platf_new_link(&link);
 302
 303     routing_cluster_add_backbone(Link::byName(link.id));
 304     free((char*)link.id);
 305   }
 306
 307   XBT_DEBUG("</AS>");
 308   sg_platf_new_AS_seal();
 309
 310   simgrid::surf::on_cluster(cluster);
 311   delete cluster->radicals;
 312 }
 313 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 314   simgrid::kernel::routing::ClusterZone* cluster =
 315       dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
 316
 317   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 318   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 319
 320   cluster->backbone_ = bb;
 321   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 322 }
 323
 324 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 325 {
 326   for (int radical : *cabinet->radicals) {
 327     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 328     s_sg_platf_host_cbarg_t host;
 329     memset(&host, 0, sizeof(host));
 330     host.pstate           = 0;
 331     host.core_amount      = 1;
 332     host.id               = hostname;
 333     host.speed_per_pstate.push_back(cabinet->speed);
 334     sg_platf_new_host(&host);
 335
 336     s_sg_platf_link_cbarg_t link;
 337     memset(&link, 0, sizeof(link));
 338     link.policy    = SURF_LINK_FULLDUPLEX;
 339     link.latency   = cabinet->lat;
 340     link.bandwidth = cabinet->bw;
 341     link.id        = bprintf("link_%s",hostname);
 342     sg_platf_new_link(&link);
 343     free((char*)link.id);
 344
 345     s_sg_platf_host_link_cbarg_t host_link;
 346     memset(&host_link, 0, sizeof(host_link));
 347     host_link.id        = hostname;
 348     host_link.link_up   = bprintf("link_%s_UP",hostname);
 349     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 350     sg_platf_new_hostlink(&host_link);
 351     free((char*)host_link.link_up);
 352     free((char*)host_link.link_down);
 353
 354     free(hostname);
 355   }
 356   delete cabinet->radicals;
 357 }
 358
 359 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 360 {
 361   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 362                "Refusing to add a second storage named \"%s\"", storage->id);
 363
 364   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 365   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 366
 367   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 368       storage->id,
 369       storage->type_id,
 370       storage->content);
 371
 372   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 373
 374   // if storage content is not specified use the content of storage_type if any
 375   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 376     storage->content = ((storage_type_t) stype)->content;
 377     storage->content_type = ((storage_type_t) stype)->content_type;
 378     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 379         storage->id,((storage_type_t) stype)->content_type,
 380         ((storage_type_t) stype)->type_id);
 381   }
 382
 383   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 384       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 385       "\n\t\tproperties '%p''\n",
 386       storage->id,
 387       ((storage_type_t) stype)->model,
 388       ((storage_type_t) stype)->type_id,
 389       storage->content,
 390       storage->content_type,
 391     storage->properties);
 392
 393   auto s = surf_storage_model->createStorage(storage->id, ((storage_type_t)stype)->type_id, storage->content,
 394                                              storage->content_type, storage->attach);
 395
 396   if (storage->properties) {
 397     xbt_dict_cursor_t cursor = nullptr;
 398     char *key, *data;
 399     xbt_dict_foreach (storage->properties, cursor, key, data)
 400       s->setProperty(key, data);
 401     xbt_dict_free(&storage->properties);
 402   }
 403 }
 404 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 405
 406   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 407                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 408
 409   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 410   stype->model = xbt_strdup(storage_type->model);
 411   stype->properties = storage_type->properties;
 412   stype->content = xbt_strdup(storage_type->content);
 413   stype->content_type = xbt_strdup(storage_type->content_type);
 414   stype->type_id = xbt_strdup(storage_type->id);
 415   stype->size = storage_type->size;
 416   stype->model_properties = storage_type->model_properties;
 417
 418   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 419       "content '%s', and content_type '%s'",
 420       stype->type_id,
 421       stype->model,
 422       storage_type->content,
 423       storage_type->content_type);
 424
 425   xbt_lib_set(storage_type_lib,
 426       stype->type_id,
 427       ROUTING_STORAGE_TYPE_LEVEL,
 428       (void *) stype);
 429 }
 430
 431 static void mount_free(void *p)
 432 {
 433   mount_t mnt = (mount_t) p;
 434   xbt_free(mnt->name);
 435 }
 436
 437 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 438   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 439       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 440
 441   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 442
 443   s_mount_t mnt;
 444   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 445   mnt.name = xbt_strdup(mount->name);
 446
 447   if(!mount_list){
 448     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 449     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 450   }
 451   xbt_dynar_push(mount_list, &mnt);
 452 }
 453
 454 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 455 {
 456   routing_get_current()->addRoute(route);
 457 }
 458
 459 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 460 {
 461   routing_get_current()->addBypassRoute(bypassRoute);
 462 }
 463
 464 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 465 {
 466   sg_host_t host = sg_host_by_name(process->host);
 467   if (!host) {
 468     // The requested host does not exist. Do a nice message to the user
 469     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 470     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 471     free(tmp);
 472     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 473     simgrid::s4u::Host* host;
 474     unsigned int cursor;
 475     xbt_dynar_foreach(all_hosts,cursor, host) {
 476       xbt_strbuff_append(msg, host->cname());
 477       xbt_strbuff_append(msg,"', '");
 478       if (msg->used > 1024) {
 479         msg->data[msg->used-3]='\0';
 480         msg->used -= 3;
 481
 482         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 483         break;
 484       }
 485     }
 486     msg->data[msg->used-3]='\0';
 487     xbt_die("%s", msg->data);
 488   }
 489   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(process->function);
 490   xbt_assert(factory, "Function '%s' unknown", process->function);
 491
 492   double start_time = process->start_time;
 493   double kill_time  = process->kill_time;
 494   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 495
 496   std::vector<std::string> args(process->argv, process->argv + process->argc);
 497   std::function<void()> code = factory(std::move(args));
 498
 499   smx_process_arg_t arg = nullptr;
 500   smx_actor_t process_created = nullptr;
 501
 502   arg = new simgrid::simix::ProcessArg();
 503   arg->name = std::string(process->argv[0]);
 504   arg->code = code;
 505   arg->data = nullptr;
 506   arg->host = host;
 507   arg->kill_time = kill_time;
 508   arg->properties = current_property_set;
 509
 510   sg_host_simix(host)->boot_processes.push_back(arg);
 511
 512   if (start_time > SIMIX_get_clock()) {
 513
 514     arg = new simgrid::simix::ProcessArg();
 515     arg->name = std::string(process->argv[0]);
 516     arg->code = std::move(code);
 517     arg->data = nullptr;
 518     arg->host = host;
 519     arg->kill_time = kill_time;
 520     arg->properties = current_property_set;
 521
 522     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->cname(), start_time);
 523     SIMIX_timer_set(start_time, [=]() {
 524       simix_global->create_process_function(
 525                                             arg->name.c_str(),
 526                                             std::move(arg->code),
 527                                             arg->data,
 528                                             arg->host,
 529                                             arg->kill_time,
 530                                             arg->properties,
 531                                             arg->auto_restart,
 532                                             nullptr);
 533       delete arg;
 534     });
 535   } else {                      // start_time <= SIMIX_get_clock()
 536     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->cname());
 537
 538     process_created = simix_global->create_process_function(
 539         arg->name.c_str(), std::move(code), nullptr,
 540         host, kill_time,
 541         current_property_set, auto_restart, nullptr);
 542
 543     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 544     if (!process_created) {
 545       return;
 546     }
 547   }
 548   current_property_set = nullptr;
 549 }
 550
 551 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 552 {
 553   simgrid::kernel::routing::VivaldiZone* as = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
 554   xbt_assert(as, "<peer> tag can only be used in Vivaldi netzones.");
 555
 556   std::vector<double> speedPerPstate;
 557   speedPerPstate.push_back(peer->speed);
 558   simgrid::s4u::Host* host = as->createHost(peer->id, &speedPerPstate, 1, nullptr);
 559
 560   as->setPeerLink(host->pimpl_netcard, peer->bw_in, peer->bw_out, peer->coord);
 561
 562   /* Change from the defaults */
 563   if (peer->state_trace)
 564     host->pimpl_cpu->setStateTrace(peer->state_trace);
 565   if (peer->speed_trace)
 566     host->pimpl_cpu->setSpeedTrace(peer->speed_trace);
 567 }
 568
 569 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 570
 571 void sg_platf_end() {
 572   simgrid::surf::on_postparse();
 573 }
 574
 575 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 576 static void surf_config_models_setup()
 577 {
 578   const char* host_model_name    = xbt_cfg_get_string("host/model");
 579   const char* network_model_name = xbt_cfg_get_string("network/model");
 580   const char* cpu_model_name     = xbt_cfg_get_string("cpu/model");
 581   const char* storage_model_name = xbt_cfg_get_string("storage/model");
 582
 583   /* The compound host model is needed when using non-default net/cpu models */
 584   if ((!xbt_cfg_is_default_value("network/model") || !xbt_cfg_is_default_value("cpu/model")) &&
 585       xbt_cfg_is_default_value("host/model")) {
 586     host_model_name = "compound";
 587     xbt_cfg_set_string("host/model", host_model_name);
 588   }
 589
 590   XBT_DEBUG("host model: %s", host_model_name);
 591   if (!strcmp(host_model_name, "compound")) {
 592     xbt_assert(cpu_model_name, "Set a cpu model to use with the 'compound' host model");
 593     xbt_assert(network_model_name, "Set a network model to use with the 'compound' host model");
 594
 595     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
 596     surf_cpu_model_description[cpu_id].model_init_preparse();
 597
 598     int network_id = find_model_description(surf_network_model_description, network_model_name);
 599     surf_network_model_description[network_id].model_init_preparse();
 600   }
 601
 602   XBT_DEBUG("Call host_model_init");
 603   int host_id = find_model_description(surf_host_model_description, host_model_name);
 604   surf_host_model_description[host_id].model_init_preparse();
 605
 606   XBT_DEBUG("Call vm_model_init");
 607   surf_vm_model_init_HL13();
 608
 609   XBT_DEBUG("Call storage_model_init");
 610   int storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 611   surf_storage_model_description[storage_id].model_init_preparse();
 612 }
 613
 614 /**
 615  * \brief Add an AS to the platform
 616  *
 617  * Add a new autonomous system to the platform. Any elements (such as host,
 618  * router or sub-AS) added after this call and before the corresponding call
 619  * to sg_platf_new_AS_seal() will be added to this AS.
 620  *
 621  * Once this function was called, the configuration concerning the used
 622  * models cannot be changed anymore.
 623  *
 624  * @param AS the parameters defining the AS to build.
 625  */
 626 simgrid::s4u::NetZone* sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 627 {
 628   if (!surf_parse_models_setup_already_called) {
 629     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 630      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 631      *
 632      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 633      * (FIXME: check it out by creating a file beginning with one of these tags)
 634      * but cluster and peer create ASes internally, so putting the code in there is ok.
 635      */
 636     surf_parse_models_setup_already_called = 1;
 637     surf_config_models_setup();
 638   }
 639
 640   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 641                             * any further config now that we created some real content */
 642
 643
 644   /* search the routing model */
 645   simgrid::kernel::routing::NetZoneImpl* new_as = nullptr;
 646   switch(AS->routing){
 647     case A_surfxml_AS_routing_Cluster:
 648       new_as = new simgrid::kernel::routing::ClusterZone(current_routing, AS->id);
 649       break;
 650     case A_surfxml_AS_routing_ClusterDragonfly:
 651       new_as = new simgrid::kernel::routing::DragonflyZone(current_routing, AS->id);
 652       break;
 653     case A_surfxml_AS_routing_ClusterTorus:
 654       new_as = new simgrid::kernel::routing::TorusZone(current_routing, AS->id);
 655       break;
 656     case A_surfxml_AS_routing_ClusterFatTree:
 657       new_as = new simgrid::kernel::routing::FatTreeZone(current_routing, AS->id);
 658       break;
 659     case A_surfxml_AS_routing_Dijkstra:
 660       new_as = new simgrid::kernel::routing::DijkstraZone(current_routing, AS->id, 0);
 661       break;
 662     case A_surfxml_AS_routing_DijkstraCache:
 663       new_as = new simgrid::kernel::routing::DijkstraZone(current_routing, AS->id, 1);
 664       break;
 665     case A_surfxml_AS_routing_Floyd:
 666       new_as = new simgrid::kernel::routing::FloydZone(current_routing, AS->id);
 667       break;
 668     case A_surfxml_AS_routing_Full:
 669       new_as = new simgrid::kernel::routing::FullZone(current_routing, AS->id);
 670       break;
 671     case A_surfxml_AS_routing_None:
 672       new_as = new simgrid::kernel::routing::EmptyZone(current_routing, AS->id);
 673       break;
 674     case A_surfxml_AS_routing_Vivaldi:
 675       new_as = new simgrid::kernel::routing::VivaldiZone(current_routing, AS->id);
 676       break;
 677     default:
 678       xbt_die("Not a valid model!");
 679       break;
 680   }
 681
 682   if (current_routing == nullptr) { /* it is the first one */
 683     xbt_assert(simgrid::s4u::Engine::instance()->pimpl->netRoot_ == nullptr,
 684                "All defined components must belong to a AS");
 685     simgrid::s4u::Engine::instance()->pimpl->netRoot_ = new_as;
 686
 687   } else {
 688     /* set the father behavior */
 689     if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
 690       current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::recursive;
 691     /* add to the sons dictionary */
 692     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, nullptr);
 693   }
 694
 695   /* set the new current component of the tree */
 696   current_routing = new_as;
 697
 698   if (TRACE_is_enabled())
 699     sg_instr_AS_begin(AS);
 700
 701   return new_as;
 702 }
 703
 704 /**
 705  * \brief Specify that the description of the current AS is finished
 706  *
 707  * Once you've declared all the content of your AS, you have to seal
 708  * it with this call. Your AS is not usable until you call this function.
 709  */
 710 void sg_platf_new_AS_seal()
 711 {
 712   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 713   current_routing->seal();
 714   current_routing = static_cast<simgrid::kernel::routing::NetZoneImpl*>(current_routing->father());
 715
 716   if (TRACE_is_enabled())
 717     sg_instr_AS_end();
 718 }
 719
 720 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 721 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 722 {
 723   simgrid::kernel::routing::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 724   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 725   xbt_assert(dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing),
 726              "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 727
 728   simgrid::surf::Link* linkUp   = Link::byName(hostlink->link_up);
 729   simgrid::surf::Link* linkDown = Link::byName(hostlink->link_down);
 730
 731   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up);
 732   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down);
 733
 734   auto as_cluster = static_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
 735
 736   if (as_cluster->privateLinks_.find(netcard->id()) != as_cluster->privateLinks_.end())
 737     surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
 738
 739   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->cname(), netcard->id());
 740   as_cluster->privateLinks_.insert({netcard->id(), {linkUp, linkDown}});
 741 }
 742
 743 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace)
 744 {
 745   tmgr_trace_t tmgr_trace;
 746   if (trace->file && strcmp(trace->file, "") != 0) {
 747     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 748   } else {
 749     xbt_assert(strcmp(trace->pc_data, ""),
 750         "Trace '%s' must have either a content, or point to a file on disk.",trace->id);
 751     tmgr_trace = tmgr_trace_new_from_string(trace->id, trace->pc_data, trace->periodicity);
 752   }
 753   xbt_dict_set(traces_set_list, trace->id, static_cast<void*>(tmgr_trace), nullptr);
 754 }