src/surf/sg_platf.cpp

   1 /* Copyright (c) 2006-2021. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include "simgrid/Exception.hpp"
   7 #include "simgrid/kernel/routing/ClusterZone.hpp"
   8 #include "simgrid/kernel/routing/DijkstraZone.hpp"
   9 #include "simgrid/kernel/routing/DragonflyZone.hpp"
  10 #include "simgrid/kernel/routing/EmptyZone.hpp"
  11 #include "simgrid/kernel/routing/FatTreeZone.hpp"
  12 #include "simgrid/kernel/routing/FloydZone.hpp"
  13 #include "simgrid/kernel/routing/FullZone.hpp"
  14 #include "simgrid/kernel/routing/NetPoint.hpp"
  15 #include "simgrid/kernel/routing/NetZoneImpl.hpp"
  16 #include "simgrid/kernel/routing/TorusZone.hpp"
  17 #include "simgrid/kernel/routing/VivaldiZone.hpp"
  18 #include "simgrid/kernel/routing/WifiZone.hpp"
  19 #include "simgrid/s4u/Engine.hpp"
  20 #include "src/include/simgrid/sg_config.hpp"
  21 #include "src/include/surf/surf.hpp"
  22 #include "src/kernel/EngineImpl.hpp"
  23 #include "src/kernel/resource/DiskImpl.hpp"
  24 #include "src/kernel/resource/profile/Profile.hpp"
  25 #include "src/simix/smx_private.hpp"
  26 #include "src/surf/HostImpl.hpp"
  27 #include "src/surf/xml/platf_private.hpp"
  28
  29 #include <string>
  30
  31 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  32
  33 namespace simgrid {
  34 namespace kernel {
  35 namespace routing {
  36 xbt::signal<void(ClusterCreationArgs const&)> on_cluster_creation;
  37 } // namespace routing
  38 } // namespace kernel
  39 } // namespace simgrid
  40
  41 static int surf_parse_models_setup_already_called = 0;
  42
  43 /** The current AS in the parsing */
  44 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
  45 static simgrid::kernel::routing::NetZoneImpl* routing_get_current()
  46 {
  47   return current_routing;
  48 }
  49
  50 /** Module management function: creates all internal data structures */
  51 void sg_platf_init()
  52 {
  53   // Do nothing: just for symmetry of user code
  54 }
  55
  56 /** Module management function: frees all internal data structures */
  57 void sg_platf_exit() {
  58   simgrid::kernel::routing::on_cluster_creation.disconnect_slots();
  59   simgrid::s4u::Engine::on_platform_created.disconnect_slots();
  60
  61   /* make sure that we will reinit the models while loading the platf once reinited */
  62   surf_parse_models_setup_already_called = 0;
  63   surf_parse_lex_destroy();
  64 }
  65
  66 /** @brief Add a host to the current AS */
  67 void sg_platf_new_host(const simgrid::kernel::routing::HostCreationArgs* args)
  68 {
  69   simgrid::s4u::Host* host = routing_get_current()->create_host(args->id, args->speed_per_pstate, args->core_amount);
  70
  71   if (args->properties) {
  72     host->set_properties(*args->properties);
  73     delete args->properties;
  74   }
  75
  76   host->pimpl_->set_disks(args->disks, host);
  77
  78   /* Change from the defaults */
  79   if (args->state_trace)
  80     host->set_state_profile(args->state_trace);
  81   if (args->speed_trace)
  82     host->set_speed_profile(args->speed_trace);
  83   if (args->pstate != 0)
  84     host->set_pstate(args->pstate);
  85   if (not args->coord.empty())
  86     new simgrid::kernel::routing::vivaldi::Coords(host->get_netpoint(), args->coord);
  87
  88   simgrid::s4u::Host::on_creation(*host); // notify the signal
  89 }
  90
  91 /** @brief Add a "router" to the network element list */
  92 simgrid::kernel::routing::NetPoint* sg_platf_new_router(const std::string& name, const char* coords)
  93 {
  94   if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
  95     current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::base;
  96   xbt_assert(nullptr == simgrid::s4u::Engine::get_instance()->netpoint_by_name_or_null(name),
  97              "Refusing to create a router named '%s': this name already describes a node.", name.c_str());
  98
  99   auto* netpoint =
 100       new simgrid::kernel::routing::NetPoint(name, simgrid::kernel::routing::NetPoint::Type::Router, current_routing);
 101   XBT_DEBUG("Router '%s' has the id %u", netpoint->get_cname(), netpoint->id());
 102
 103   if (coords && strcmp(coords, ""))
 104     new simgrid::kernel::routing::vivaldi::Coords(netpoint, coords);
 105
 106
 107   return netpoint;
 108 }
 109
 110 static void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* args, const std::string& link_name)
 111 {
 112   simgrid::s4u::Link* link = routing_get_current()->create_link(link_name, args->bandwidths, args->latency, args->policy);
 113
 114   if (args->properties)
 115     link->set_properties(*args->properties);
 116
 117   simgrid::kernel::resource::LinkImpl* l = link->get_impl();
 118   if (args->latency_trace)
 119     l->set_latency_profile(args->latency_trace);
 120   if (args->bandwidth_trace)
 121     l->set_bandwidth_profile(args->bandwidth_trace);
 122   if (args->state_trace)
 123     l->set_state_profile(args->state_trace);
 124 }
 125
 126 void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* link)
 127 {
 128   if (link->policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 129     sg_platf_new_link(link, link->id + "_UP");
 130     sg_platf_new_link(link, link->id + "_DOWN");
 131   } else {
 132     sg_platf_new_link(link, link->id);
 133   }
 134   delete link->properties;
 135 }
 136
 137 void sg_platf_new_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 138 {
 139   using simgrid::kernel::routing::ClusterZone;
 140   using simgrid::kernel::routing::DragonflyZone;
 141   using simgrid::kernel::routing::FatTreeZone;
 142   using simgrid::kernel::routing::TorusZone;
 143
 144   int rankId=0;
 145
 146   // What an inventive way of initializing the AS that I have as ancestor :-(
 147   simgrid::kernel::routing::ZoneCreationArgs zone;
 148   zone.id = cluster->id;
 149   switch (cluster->topology) {
 150     case simgrid::kernel::routing::ClusterTopology::TORUS:
 151       zone.routing = "ClusterTorus";
 152       break;
 153     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 154       zone.routing = "ClusterDragonfly";
 155       break;
 156     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 157       zone.routing = "ClusterFatTree";
 158       break;
 159     default:
 160       zone.routing = "Cluster";
 161       break;
 162   }
 163   sg_platf_new_Zone_begin(&zone);
 164   auto* current_as = static_cast<ClusterZone*>(routing_get_current());
 165   current_as->parse_specific_arguments(cluster);
 166   if (cluster->properties != nullptr)
 167     for (auto const& elm : *cluster->properties)
 168       current_as->get_iface()->set_property(elm.first, elm.second);
 169
 170   if(cluster->loopback_bw > 0 || cluster->loopback_lat > 0){
 171     current_as->num_links_per_node_++;
 172     current_as->has_loopback_ = true;
 173   }
 174
 175   if(cluster->limiter_link > 0){
 176     current_as->num_links_per_node_++;
 177     current_as->has_limiter_ = true;
 178   }
 179
 180   for (int const& i : *cluster->radicals) {
 181     std::string host_id = std::string(cluster->prefix) + std::to_string(i) + cluster->suffix;
 182     std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(i);
 183
 184     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id.c_str(), cluster->speeds.front());
 185
 186     simgrid::kernel::routing::HostCreationArgs host;
 187     host.id = host_id;
 188     if ((cluster->properties != nullptr) && (not cluster->properties->empty())) {
 189       host.properties = new std::unordered_map<std::string, std::string>();
 190
 191       for (auto const& elm : *cluster->properties)
 192         host.properties->insert({elm.first, elm.second});
 193     }
 194
 195     host.speed_per_pstate = cluster->speeds;
 196     host.pstate = 0;
 197     host.core_amount = cluster->core_amount;
 198     host.coord = "";
 199     sg_platf_new_host(&host);
 200     XBT_DEBUG("</host>");
 201
 202     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id.c_str(), cluster->bw, cluster->lat);
 203
 204     // All links are saved in a matrix;
 205     // every row describes a single node; every node may have multiple links.
 206     // the first column may store a link from x to x if p_has_loopback is set
 207     // the second column may store a limiter link if p_has_limiter is set
 208     // other columns are to store one or more link for the node
 209
 210     //add a loopback link
 211     const simgrid::s4u::Link* linkUp   = nullptr;
 212     const simgrid::s4u::Link* linkDown = nullptr;
 213     if(cluster->loopback_bw > 0 || cluster->loopback_lat > 0){
 214       std::string tmp_link = link_id + "_loopback";
 215       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link.c_str(), cluster->loopback_bw);
 216
 217       simgrid::kernel::routing::LinkCreationArgs link;
 218       link.id        = tmp_link;
 219       link.bandwidths.push_back(cluster->loopback_bw);
 220       link.latency   = cluster->loopback_lat;
 221       link.policy    = simgrid::s4u::Link::SharingPolicy::FATPIPE;
 222       sg_platf_new_link(&link);
 223       linkUp   = simgrid::s4u::Link::by_name_or_null(tmp_link);
 224       linkDown = simgrid::s4u::Link::by_name_or_null(tmp_link);
 225
 226       ClusterZone* as_cluster = current_as;
 227       as_cluster->private_links_.insert({as_cluster->node_pos(rankId), {linkUp->get_impl(), linkDown->get_impl()}});
 228     }
 229
 230     //add a limiter link (shared link to account for maximal bandwidth of the node)
 231     linkUp   = nullptr;
 232     linkDown = nullptr;
 233     if(cluster->limiter_link > 0){
 234       std::string tmp_link = std::string(link_id) + "_limiter";
 235       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link.c_str(), cluster->limiter_link);
 236
 237       simgrid::kernel::routing::LinkCreationArgs link;
 238       link.id        = tmp_link;
 239       link.bandwidths.push_back(cluster->limiter_link);
 240       link.latency = 0;
 241       link.policy    = simgrid::s4u::Link::SharingPolicy::SHARED;
 242       sg_platf_new_link(&link);
 243       linkDown = simgrid::s4u::Link::by_name_or_null(tmp_link);
 244       linkUp   = linkDown;
 245       current_as->private_links_.insert(
 246           {current_as->node_pos_with_loopback(rankId), {linkUp->get_impl(), linkDown->get_impl()}});
 247     }
 248
 249     //call the cluster function that adds the others links
 250     if (cluster->topology == simgrid::kernel::routing::ClusterTopology::FAT_TREE) {
 251       static_cast<FatTreeZone*>(current_as)->add_processing_node(i);
 252     } else {
 253       current_as->create_links_for_node(cluster, i, rankId, current_as->node_pos_with_loopback_limiter(rankId));
 254     }
 255     rankId++;
 256   }
 257   delete cluster->properties;
 258
 259   // Add a router.
 260   XBT_DEBUG(" ");
 261   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
 262   if (cluster->router_id.empty())
 263     cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
 264   current_as->router_ = sg_platf_new_router(cluster->router_id, nullptr);
 265
 266   //Make the backbone
 267   if ((cluster->bb_bw > 0) || (cluster->bb_lat > 0)) {
 268     simgrid::kernel::routing::LinkCreationArgs link;
 269     link.id        = std::string(cluster->id)+ "_backbone";
 270     link.bandwidths.push_back(cluster->bb_bw);
 271     link.latency   = cluster->bb_lat;
 272     link.policy    = cluster->bb_sharing_policy;
 273
 274     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id.c_str(), cluster->bb_bw, cluster->bb_lat);
 275     sg_platf_new_link(&link);
 276
 277     routing_cluster_add_backbone(simgrid::s4u::Link::by_name(link.id)->get_impl());
 278   }
 279
 280   XBT_DEBUG("</AS>");
 281   sg_platf_new_Zone_seal();
 282
 283   simgrid::kernel::routing::on_cluster_creation(*cluster);
 284   delete cluster->radicals;
 285 }
 286
 287 void routing_cluster_add_backbone(simgrid::kernel::resource::LinkImpl* bb)
 288 {
 289   auto* cluster = dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
 290
 291   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 292   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->get_cname());
 293
 294   cluster->backbone_ = bb;
 295   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->get_cname());
 296 }
 297
 298 void sg_platf_new_cabinet(const simgrid::kernel::routing::CabinetCreationArgs* cabinet)
 299 {
 300   for (int const& radical : *cabinet->radicals) {
 301     std::string hostname = cabinet->prefix + std::to_string(radical) + cabinet->suffix;
 302     simgrid::kernel::routing::HostCreationArgs host;
 303     host.pstate           = 0;
 304     host.core_amount      = 1;
 305     host.id               = hostname;
 306     host.speed_per_pstate.push_back(cabinet->speed);
 307     sg_platf_new_host(&host);
 308
 309     simgrid::kernel::routing::LinkCreationArgs link;
 310     link.policy    = simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX;
 311     link.latency   = cabinet->lat;
 312     link.bandwidths.push_back(cabinet->bw);
 313     link.id        = "link_" + hostname;
 314     sg_platf_new_link(&link);
 315
 316     simgrid::kernel::routing::HostLinkCreationArgs host_link;
 317     host_link.id        = hostname;
 318     host_link.link_up   = std::string("link_") + hostname + "_UP";
 319     host_link.link_down = std::string("link_") + hostname + "_DOWN";
 320     sg_platf_new_hostlink(&host_link);
 321   }
 322   delete cabinet->radicals;
 323 }
 324
 325 simgrid::kernel::resource::DiskImpl* sg_platf_new_disk(const simgrid::kernel::routing::DiskCreationArgs* disk)
 326 {
 327   simgrid::kernel::resource::DiskImpl* d = surf_disk_model->createDisk(disk->id, disk->read_bw, disk->write_bw);
 328   if (disk->properties) {
 329     d->set_properties(*disk->properties);
 330     delete disk->properties;
 331   }
 332   simgrid::s4u::Disk::on_creation(*d->get_iface());
 333   return d;
 334 }
 335
 336 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
 337 {
 338   routing_get_current()->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
 339                                    route->symmetrical);
 340 }
 341
 342 void sg_platf_new_bypassRoute(simgrid::kernel::routing::RouteCreationArgs* bypassRoute)
 343 {
 344   routing_get_current()->add_bypass_route(bypassRoute->src, bypassRoute->dst, bypassRoute->gw_src, bypassRoute->gw_dst,
 345                                           bypassRoute->link_list, bypassRoute->symmetrical);
 346 }
 347
 348 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
 349 {
 350   sg_host_t host = sg_host_by_name(actor->host);
 351   if (not host) {
 352     // The requested host does not exist. Do a nice message to the user
 353     std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
 354                       "' does not exist\nExisting hosts: '";
 355
 356     std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
 357
 358     for (auto const& some_host : list) {
 359       msg += some_host->get_name();
 360       msg += "', '";
 361       if (msg.length() > 1024) {
 362         msg.pop_back(); // remove trailing quote
 363         msg += "...(list truncated)......";
 364         break;
 365       }
 366     }
 367     xbt_die("%s", msg.c_str());
 368   }
 369   const simgrid::kernel::actor::ActorCodeFactory& factory =
 370       simgrid::kernel::EngineImpl::get_instance()->get_function(actor->function);
 371   xbt_assert(factory, "Error while creating an actor from the XML file: Function '%s' not registered", actor->function);
 372
 373   double start_time = actor->start_time;
 374   double kill_time  = actor->kill_time;
 375   bool auto_restart = actor->restart_on_failure;
 376
 377   std::string actor_name     = actor->args[0];
 378   simgrid::kernel::actor::ActorCode code = factory(std::move(actor->args));
 379   std::shared_ptr<std::unordered_map<std::string, std::string>> properties(actor->properties);
 380
 381   auto* arg =
 382       new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, properties, auto_restart);
 383
 384   host->pimpl_->add_actor_at_boot(arg);
 385
 386   if (start_time > SIMIX_get_clock()) {
 387     arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, properties, auto_restart);
 388
 389     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
 390     simgrid::simix::Timer::set(start_time, [arg, auto_restart]() {
 391       simgrid::kernel::actor::ActorImplPtr new_actor = simgrid::kernel::actor::ActorImpl::create(
 392           arg->name.c_str(), arg->code, arg->data, arg->host, arg->properties.get(), nullptr);
 393       if (arg->kill_time >= 0)
 394         new_actor->set_kill_time(arg->kill_time);
 395       if (auto_restart)
 396         new_actor->set_auto_restart(auto_restart);
 397       delete arg;
 398     });
 399   } else {                      // start_time <= SIMIX_get_clock()
 400     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
 401
 402     try {
 403       simgrid::kernel::actor::ActorImplPtr new_actor = nullptr;
 404       new_actor = simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), code, nullptr, host,
 405                                                             arg->properties.get(), nullptr);
 406       /* The actor creation will fail if the host is currently dead, but that's fine */
 407       if (arg->kill_time >= 0)
 408         new_actor->set_kill_time(arg->kill_time);
 409       if (auto_restart)
 410         new_actor->set_auto_restart(auto_restart);
 411     } catch (simgrid::HostFailureException const&) {
 412       XBT_WARN("Deployment includes some initially turned off Hosts ... nevermind.");
 413     }
 414   }
 415 }
 416
 417 void sg_platf_new_peer(const simgrid::kernel::routing::PeerCreationArgs* peer)
 418 {
 419   auto* as = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
 420   xbt_assert(as, "<peer> tag can only be used in Vivaldi netzones.");
 421
 422   std::vector<double> speed_per_pstate;
 423   speed_per_pstate.push_back(peer->speed);
 424   simgrid::s4u::Host* host = as->create_host(peer->id, speed_per_pstate, 1);
 425
 426   as->set_peer_link(host->get_netpoint(), peer->bw_in, peer->bw_out, peer->coord);
 427
 428   /* Change from the defaults */
 429   if (peer->state_trace)
 430     host->set_state_profile(peer->state_trace);
 431   if (peer->speed_trace)
 432     host->set_speed_profile(peer->speed_trace);
 433   simgrid::s4u::Host::on_creation(*host); // notify the signal
 434 }
 435
 436 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 437 static void surf_config_models_setup()
 438 {
 439   std::string host_model_name    = simgrid::config::get_value<std::string>("host/model");
 440   std::string network_model_name = simgrid::config::get_value<std::string>("network/model");
 441   std::string cpu_model_name     = simgrid::config::get_value<std::string>("cpu/model");
 442   std::string disk_model_name    = simgrid::config::get_value<std::string>("disk/model");
 443
 444   /* The compound host model is needed when using non-default net/cpu models */
 445   if ((not simgrid::config::is_default("network/model") || not simgrid::config::is_default("cpu/model")) &&
 446       simgrid::config::is_default("host/model")) {
 447     host_model_name = "compound";
 448     simgrid::config::set_value("host/model", host_model_name);
 449   }
 450
 451   XBT_DEBUG("host model: %s", host_model_name.c_str());
 452   if (host_model_name == "compound") {
 453     xbt_assert(not cpu_model_name.empty(), "Set a cpu model to use with the 'compound' host model");
 454     xbt_assert(not network_model_name.empty(), "Set a network model to use with the 'compound' host model");
 455
 456     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
 457     surf_cpu_model_description[cpu_id].model_init_preparse();
 458
 459     int network_id = find_model_description(surf_network_model_description, network_model_name);
 460     surf_network_model_description[network_id].model_init_preparse();
 461   }
 462
 463   XBT_DEBUG("Call host_model_init");
 464   int host_id = find_model_description(surf_host_model_description, host_model_name);
 465   surf_host_model_description[host_id].model_init_preparse();
 466
 467   XBT_DEBUG("Call vm_model_init");
 468   surf_vm_model_init_HL13();
 469
 470   XBT_DEBUG("Call disk_model_init");
 471   int disk_id = find_model_description(surf_disk_model_description, disk_model_name);
 472   surf_disk_model_description[disk_id].model_init_preparse();
 473 }
 474
 475 /**
 476  * @brief Add a Zone to the platform
 477  *
 478  * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
 479  * and before the corresponding call to sg_platf_new_Zone_seal() will be added to this Zone.
 480  *
 481  * Once this function was called, the configuration concerning the used models cannot be changed anymore.
 482  *
 483  * @param zone the parameters defining the Zone to build.
 484  */
 485 simgrid::kernel::routing::NetZoneImpl* sg_platf_new_Zone_begin(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 486 {
 487   if (not surf_parse_models_setup_already_called) {
 488     simgrid::s4u::Engine::on_platform_creation();
 489
 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|zone|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 come down to zone creations, so putting this verification here is correct.
 496      */
 497     surf_parse_models_setup_already_called = 1;
 498     surf_config_models_setup();
 499   }
 500
 501   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 502                             * any further config now that we created some real content */
 503
 504   /* search the routing model */
 505   simgrid::kernel::routing::NetZoneImpl* new_zone = nullptr;
 506   simgrid::kernel::resource::NetworkModel* netmodel =
 507       current_routing == nullptr ? surf_network_model : current_routing->network_model_;
 508   if (strcasecmp(zone->routing.c_str(), "Cluster") == 0) {
 509       new_zone = new simgrid::kernel::routing::ClusterZone(current_routing, zone->id, netmodel);
 510   } else if (strcasecmp(zone->routing.c_str(),"ClusterDragonfly") == 0) {
 511       new_zone = new simgrid::kernel::routing::DragonflyZone(current_routing, zone->id, netmodel);
 512   } else if (strcasecmp(zone->routing.c_str(),"ClusterTorus") == 0) {
 513       new_zone = new simgrid::kernel::routing::TorusZone(current_routing, zone->id, netmodel);
 514   } else if (strcasecmp(zone->routing.c_str(),"ClusterFatTree") == 0) {
 515       new_zone = new simgrid::kernel::routing::FatTreeZone(current_routing, zone->id, netmodel);
 516   } else if (strcasecmp(zone->routing.c_str(),"Dijkstra") == 0) {
 517       new_zone = new simgrid::kernel::routing::DijkstraZone(current_routing, zone->id, netmodel, false);
 518   } else if (strcasecmp(zone->routing.c_str(),"DijkstraCache") == 0) {
 519       new_zone = new simgrid::kernel::routing::DijkstraZone(current_routing, zone->id, netmodel, true);
 520   } else if (strcasecmp(zone->routing.c_str(),"Floyd") == 0) {
 521       new_zone = new simgrid::kernel::routing::FloydZone(current_routing, zone->id, netmodel);
 522   } else if (strcasecmp(zone->routing.c_str(),"Full") == 0) {
 523       new_zone = new simgrid::kernel::routing::FullZone(current_routing, zone->id, netmodel);
 524   } else if (strcasecmp(zone->routing.c_str(),"None") == 0) {
 525       new_zone = new simgrid::kernel::routing::EmptyZone(current_routing, zone->id, netmodel);
 526   } else if (strcasecmp(zone->routing.c_str(),"Vivaldi") == 0) {
 527       new_zone = new simgrid::kernel::routing::VivaldiZone(current_routing, zone->id, netmodel);
 528   } else if (strcasecmp(zone->routing.c_str(), "Wifi") == 0) {
 529     new_zone = new simgrid::kernel::routing::WifiZone(current_routing, zone->id, netmodel);
 530   } else {
 531     xbt_die("Not a valid model!");
 532   }
 533
 534   if (current_routing == nullptr) { /* it is the first one */
 535     simgrid::s4u::Engine::get_instance()->set_netzone_root(new_zone->get_iface());
 536   } else {
 537     /* set the father behavior */
 538     if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
 539       current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::recursive;
 540     /* add to the sons dictionary */
 541     current_routing->get_children()->push_back(new_zone);
 542   }
 543
 544   /* set the new current component of the tree */
 545   current_routing = new_zone;
 546   simgrid::s4u::NetZone::on_creation(*new_zone->get_iface()); // notify the signal
 547
 548   return new_zone;
 549 }
 550
 551 void sg_platf_new_Zone_set_properties(const std::unordered_map<std::string, std::string>* props)
 552 {
 553   xbt_assert(current_routing, "Cannot set properties of the current Zone: none under construction");
 554
 555   if (props)
 556     current_routing->set_properties(*props);
 557 }
 558
 559 /**
 560  * @brief Specify that the description of the current AS is finished
 561  *
 562  * Once you've declared all the content of your AS, you have to seal
 563  * it with this call. Your AS is not usable until you call this function.
 564  */
 565 void sg_platf_new_Zone_seal()
 566 {
 567   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 568   current_routing->seal();
 569   simgrid::s4u::NetZone::on_seal(*current_routing->get_iface());
 570   current_routing = current_routing->get_father();
 571 }
 572
 573 /** @brief Add a link connecting a host to the rest of its AS (which must be cluster or vivaldi) */
 574 void sg_platf_new_hostlink(const simgrid::kernel::routing::HostLinkCreationArgs* hostlink)
 575 {
 576   const simgrid::kernel::routing::NetPoint* netpoint = simgrid::s4u::Host::by_name(hostlink->id)->get_netpoint();
 577   xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
 578   xbt_assert(dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing),
 579              "Only hosts from Cluster and Vivaldi ASes can get a host_link.");
 580
 581   const simgrid::s4u::Link* linkUp   = simgrid::s4u::Link::by_name_or_null(hostlink->link_up);
 582   const simgrid::s4u::Link* linkDown = simgrid::s4u::Link::by_name_or_null(hostlink->link_down);
 583
 584   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
 585   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
 586
 587   auto* as_cluster = static_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
 588
 589   if (as_cluster->private_links_.find(netpoint->id()) != as_cluster->private_links_.end())
 590     surf_parse_error(std::string("Host_link for '") + hostlink->id.c_str() + "' is already defined!");
 591
 592   XBT_DEBUG("Push Host_link for host '%s' to position %u", netpoint->get_cname(), netpoint->id());
 593   as_cluster->private_links_.insert({netpoint->id(), {linkUp->get_impl(), linkDown->get_impl()}});
 594 }
 595
 596 void sg_platf_new_trace(simgrid::kernel::routing::ProfileCreationArgs* profile)
 597 {
 598   simgrid::kernel::profile::Profile* mgr_profile;
 599   if (not profile->file.empty()) {
 600     mgr_profile = simgrid::kernel::profile::Profile::from_file(profile->file);
 601   } else {
 602     xbt_assert(not profile->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
 603                profile->id.c_str());
 604     mgr_profile = simgrid::kernel::profile::Profile::from_string(profile->id, profile->pc_data, profile->periodicity);
 605   }
 606   traces_set_list.insert({profile->id, mgr_profile});
 607 }