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/DijkstraZone.hpp>
   8 #include <simgrid/kernel/routing/DragonflyZone.hpp>
   9 #include <simgrid/kernel/routing/EmptyZone.hpp>
  10 #include <simgrid/kernel/routing/FatTreeZone.hpp>
  11 #include <simgrid/kernel/routing/FloydZone.hpp>
  12 #include <simgrid/kernel/routing/FullZone.hpp>
  13 #include <simgrid/kernel/routing/NetPoint.hpp>
  14 #include <simgrid/kernel/routing/NetZoneImpl.hpp>
  15 #include <simgrid/kernel/routing/TorusZone.hpp>
  16 #include <simgrid/kernel/routing/VivaldiZone.hpp>
  17 #include <simgrid/kernel/routing/WifiZone.hpp>
  18 #include <simgrid/s4u/Engine.hpp>
  19 #include <simgrid/s4u/NetZone.hpp>
  20
  21 #include "simgrid/sg_config.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/surf/HostImpl.hpp"
  26 #include "src/surf/xml/platf.hpp"
  27 #include "src/surf/xml/platf_private.hpp"
  28 #include "surf/surf.hpp"
  29
  30 #include <algorithm>
  31 #include <string>
  32
  33 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  34
  35 namespace simgrid {
  36 namespace kernel {
  37 namespace routing {
  38 xbt::signal<void(ClusterCreationArgs const&)> on_cluster_creation;
  39 } // namespace routing
  40 } // namespace kernel
  41 } // namespace simgrid
  42
  43 static simgrid::kernel::routing::ClusterZoneCreationArgs
  44     zone_cluster; /* temporary store data for irregular clusters, created with <zone routing="Cluster"> */
  45
  46 /** The current NetZone in the parsing */
  47 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
  48 static simgrid::s4u::Host* current_host = nullptr;
  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 {
  59   simgrid::kernel::routing::on_cluster_creation.disconnect_slots();
  60   simgrid::s4u::Engine::on_platform_created.disconnect_slots();
  61
  62   surf_parse_lex_destroy();
  63 }
  64
  65 /** @brief Add a host to the current NetZone */
  66 void sg_platf_new_host_begin(const simgrid::kernel::routing::HostCreationArgs* args)
  67 {
  68   current_host = current_routing->create_host(args->id, args->speed_per_pstate)
  69                      ->set_coordinates(args->coord)
  70                      ->set_core_count(args->core_amount)
  71                      ->set_state_profile(args->state_trace)
  72                      ->set_speed_profile(args->speed_trace);
  73 }
  74
  75 void sg_platf_new_host_set_properties(const std::unordered_map<std::string, std::string>& props)
  76 {
  77   xbt_assert(current_host, "Cannot set properties of the current host: none under construction");
  78   current_host->set_properties(props);
  79 }
  80
  81 void sg_platf_new_host_seal(int pstate)
  82 {
  83   xbt_assert(current_host, "Cannot seal the current Host: none under construction");
  84   current_host->seal();
  85
  86   /* When energy plugin is activated, changing the pstate requires to already have the HostEnergy extension whose
  87    * allocation is triggered by the on_creation signal. Then set_pstate must be called after the signal emission */
  88
  89   if (pstate != 0)
  90     current_host->set_pstate(pstate);
  91
  92   current_host = nullptr;
  93 }
  94
  95 void sg_platf_new_peer(const simgrid::kernel::routing::PeerCreationArgs* args)
  96 {
  97   auto* zone = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
  98   xbt_assert(zone, "<peer> tag can only be used in Vivaldi netzones.");
  99
 100   const auto* peer = zone->create_host(args->id, {args->speed})
 101                          ->set_state_profile(args->state_trace)
 102                          ->set_speed_profile(args->speed_trace)
 103                          ->set_coordinates(args->coord)
 104                          ->seal();
 105
 106   zone->set_peer_link(peer->get_netpoint(), args->bw_in, args->bw_out);
 107 }
 108
 109 /** @brief Add a "router" to the network element list */
 110 simgrid::kernel::routing::NetPoint* sg_platf_new_router(const std::string& name, const std::string& coords)
 111 {
 112   auto* netpoint = current_routing->create_router(name)->set_coordinates(coords);
 113   XBT_DEBUG("Router '%s' has the id %lu", netpoint->get_cname(), netpoint->id());
 114
 115   return netpoint;
 116 }
 117
 118 static void sg_platf_set_link_properties(simgrid::s4u::Link* link,
 119                                          const simgrid::kernel::routing::LinkCreationArgs* args)
 120 {
 121   link->set_properties(args->properties)
 122       ->set_state_profile(args->state_trace)
 123       ->set_latency_profile(args->latency_trace)
 124       ->set_bandwidth_profile(args->bandwidth_trace)
 125       ->set_latency(args->latency);
 126 }
 127
 128 void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* args)
 129 {
 130   simgrid::s4u::Link* link;
 131   if (args->policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 132     link = current_routing->create_split_duplex_link(args->id, args->bandwidths);
 133   } else {
 134     link = current_routing->create_link(args->id, args->bandwidths);
 135     link->get_impl()->set_sharing_policy(args->policy, {});
 136   }
 137   sg_platf_set_link_properties(link, args);
 138   link->seal();
 139 }
 140
 141 void sg_platf_new_disk(const simgrid::kernel::routing::DiskCreationArgs* disk)
 142 {
 143   const simgrid::s4u::Disk* new_disk = current_routing->create_disk(disk->id, disk->read_bw, disk->write_bw)
 144                                            ->set_host(current_host)
 145                                            ->set_properties(disk->properties)
 146                                            ->seal();
 147
 148   current_host->add_disk(new_disk);
 149 }
 150
 151 /*************************************************************************************************/
 152 /** @brief Auxiliary function to create hosts */
 153 static std::pair<simgrid::kernel::routing::NetPoint*, simgrid::kernel::routing::NetPoint*>
 154 sg_platf_cluster_create_host(const simgrid::kernel::routing::ClusterCreationArgs* cluster, simgrid::s4u::NetZone* zone,
 155                              const std::vector<unsigned long>& /*coord*/, unsigned long id)
 156 {
 157   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 158              "Zone(%s): error when creating host number %lu in the zone. Insufficient number of radicals available "
 159              "(total = %zu). Check the 'radical' parameter in XML",
 160              cluster->id.c_str(), id, cluster->radicals.size());
 161
 162   std::string host_id = std::string(cluster->prefix) + std::to_string(cluster->radicals[id]) + cluster->suffix;
 163   XBT_DEBUG("Cluster: creating host=%s speed=%f", host_id.c_str(), cluster->speeds.front());
 164   const simgrid::s4u::Host* host = zone->create_host(host_id, cluster->speeds)
 165                                        ->set_core_count(cluster->core_amount)
 166                                        ->set_properties(cluster->properties)
 167                                        ->seal();
 168   return std::make_pair(host->get_netpoint(), nullptr);
 169 }
 170
 171 /** @brief Auxiliary function to create loopback links */
 172 static simgrid::s4u::Link*
 173 sg_platf_cluster_create_loopback(const simgrid::kernel::routing::ClusterCreationArgs* cluster,
 174                                  simgrid::s4u::NetZone* zone, const std::vector<unsigned long>& /*coord*/,
 175                                  unsigned long id)
 176 {
 177   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 178              "Zone(%s): error when creating loopback for host number %lu in the zone. Insufficient number of "
 179              "radicals available "
 180              "(total = %zu). Check the 'radical' parameter in XML",
 181              cluster->id.c_str(), id, cluster->radicals.size());
 182
 183   std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(cluster->radicals[id]) + "_loopback";
 184   XBT_DEBUG("Cluster: creating loopback link=%s bw=%f", link_id.c_str(), cluster->loopback_bw);
 185
 186   simgrid::s4u::Link* loopback = zone->create_link(link_id, cluster->loopback_bw)
 187                                      ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
 188                                      ->set_latency(cluster->loopback_lat)
 189                                      ->seal();
 190   return loopback;
 191 }
 192
 193 /** @brief Auxiliary function to create limiter links */
 194 static simgrid::s4u::Link* sg_platf_cluster_create_limiter(const simgrid::kernel::routing::ClusterCreationArgs* cluster,
 195                                                            simgrid::s4u::NetZone* zone,
 196                                                            const std::vector<unsigned long>& /*coord*/,
 197                                                            unsigned long id)
 198 {
 199   std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(id) + "_limiter";
 200   XBT_DEBUG("Cluster: creating limiter link=%s bw=%f", link_id.c_str(), cluster->limiter_link);
 201
 202   simgrid::s4u::Link* limiter = zone->create_link(link_id, cluster->limiter_link)->seal();
 203   return limiter;
 204 }
 205
 206 /** @brief Create Torus, Fat-Tree and Dragonfly clusters */
 207 static void sg_platf_new_cluster_hierarchical(const simgrid::kernel::routing::ClusterCreationArgs* cluster)
 208 {
 209   using namespace std::placeholders;
 210   using simgrid::kernel::routing::DragonflyZone;
 211   using simgrid::kernel::routing::FatTreeZone;
 212   using simgrid::kernel::routing::TorusZone;
 213
 214   auto set_host = std::bind(sg_platf_cluster_create_host, cluster, _1, _2, _3);
 215   std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb> set_loopback{};
 216   std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb> set_limiter{};
 217
 218   if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
 219     set_loopback = std::bind(sg_platf_cluster_create_loopback, cluster, _1, _2, _3);
 220   }
 221
 222   if (cluster->limiter_link > 0) {
 223     set_limiter = std::bind(sg_platf_cluster_create_limiter, cluster, _1, _2, _3);
 224   }
 225
 226   simgrid::s4u::NetZone const* parent = current_routing ? current_routing->get_iface() : nullptr;
 227   simgrid::s4u::NetZone* zone;
 228   switch (cluster->topology) {
 229     case simgrid::kernel::routing::ClusterTopology::TORUS:
 230       zone = simgrid::s4u::create_torus_zone(
 231           cluster->id, parent, TorusZone::parse_topo_parameters(cluster->topo_parameters),
 232           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 233       break;
 234     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 235       zone = simgrid::s4u::create_dragonfly_zone(
 236           cluster->id, parent, DragonflyZone::parse_topo_parameters(cluster->topo_parameters),
 237           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 238       break;
 239     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 240       zone = simgrid::s4u::create_fatTree_zone(
 241           cluster->id, parent, FatTreeZone::parse_topo_parameters(cluster->topo_parameters),
 242           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 243       break;
 244     default:
 245       THROW_IMPOSSIBLE;
 246   }
 247   zone->seal();
 248 }
 249
 250 /*************************************************************************************************/
 251 /** @brief Create regular Cluster */
 252 static void sg_platf_new_cluster_flat(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 253 {
 254   auto* zone                          = simgrid::s4u::create_star_zone(cluster->id);
 255   simgrid::s4u::NetZone const* parent = current_routing ? current_routing->get_iface() : nullptr;
 256   if (parent)
 257     zone->set_parent(parent);
 258
 259   /* set properties */
 260   for (auto const& elm : cluster->properties)
 261     zone->set_property(elm.first, elm.second);
 262
 263   /* Make the backbone */
 264   const simgrid::s4u::Link* backbone = nullptr;
 265   if ((cluster->bb_bw > 0) || (cluster->bb_lat > 0)) {
 266     std::string bb_name = std::string(cluster->id) + "_backbone";
 267     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/> <!--backbone -->", bb_name.c_str(), cluster->bb_bw,
 268               cluster->bb_lat);
 269
 270     backbone = zone->create_link(bb_name, cluster->bb_bw)
 271                    ->set_sharing_policy(cluster->bb_sharing_policy)
 272                    ->set_latency(cluster->bb_lat)
 273                    ->seal();
 274   }
 275
 276   for (int const& i : cluster->radicals) {
 277     std::string host_id = std::string(cluster->prefix) + std::to_string(i) + cluster->suffix;
 278
 279     XBT_DEBUG("<host\tid=\"%s\"\tspeed=\"%f\">", host_id.c_str(), cluster->speeds.front());
 280     const auto* host = zone->create_host(host_id, cluster->speeds)
 281                            ->set_core_count(cluster->core_amount)
 282                            ->set_properties(cluster->properties)
 283                            ->seal();
 284
 285     XBT_DEBUG("</host>");
 286
 287     std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(i);
 288     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id.c_str(), cluster->bw, cluster->lat);
 289
 290     // add a loopback link
 291     if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
 292       std::string loopback_name = link_id + "_loopback";
 293       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", loopback_name.c_str(), cluster->loopback_bw);
 294
 295       const auto* loopback = zone->create_link(loopback_name, cluster->loopback_bw)
 296                                  ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
 297                                  ->set_latency(cluster->loopback_lat)
 298                                  ->seal();
 299
 300       zone->add_route(host->get_netpoint(), host->get_netpoint(), nullptr, nullptr,
 301                       {simgrid::s4u::LinkInRoute(loopback)});
 302     }
 303
 304     // add a limiter link (shared link to account for maximal bandwidth of the node)
 305     const simgrid::s4u::Link* limiter = nullptr;
 306     if (cluster->limiter_link > 0) {
 307       std::string limiter_name = std::string(link_id) + "_limiter";
 308       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", limiter_name.c_str(), cluster->limiter_link);
 309
 310       limiter = zone->create_link(limiter_name, cluster->limiter_link)->seal();
 311     }
 312
 313     // create link
 314     const simgrid::s4u::Link* link;
 315     if (cluster->sharing_policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 316       link = zone->create_split_duplex_link(link_id, cluster->bw)->set_latency(cluster->lat)->seal();
 317     } else {
 318       link = zone->create_link(link_id, cluster->bw)->set_latency(cluster->lat)->seal();
 319     }
 320
 321     /* adding routes */
 322     std::vector<simgrid::s4u::LinkInRoute> links;
 323     if (limiter)
 324       links.emplace_back(limiter);
 325     links.emplace_back(link, simgrid::s4u::LinkInRoute::Direction::UP);
 326     if (backbone)
 327       links.emplace_back(backbone);
 328
 329     zone->add_route(host->get_netpoint(), nullptr, nullptr, nullptr, links, true);
 330   }
 331
 332   // Add a router.
 333   XBT_DEBUG(" ");
 334   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
 335   if (cluster->router_id.empty())
 336     cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
 337   auto* router = zone->create_router(cluster->router_id);
 338   zone->add_route(router, nullptr, nullptr, nullptr, {});
 339
 340   zone->seal();
 341   simgrid::kernel::routing::on_cluster_creation(*cluster);
 342 }
 343
 344 void sg_platf_new_tag_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 345 {
 346   switch (cluster->topology) {
 347     case simgrid::kernel::routing::ClusterTopology::TORUS:
 348     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 349     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 350       sg_platf_new_cluster_hierarchical(cluster);
 351       break;
 352     default:
 353       sg_platf_new_cluster_flat(cluster);
 354       break;
 355   }
 356 }
 357 /*************************************************************************************************/
 358 /** @brief Set the links for internal node inside a Cluster(Star) */
 359 static void sg_platf_cluster_set_hostlink(simgrid::kernel::routing::StarZone* zone,
 360                                           simgrid::kernel::routing::NetPoint* netpoint,
 361                                           const simgrid::s4u::Link* link_up, const simgrid::s4u::Link* link_down,
 362                                           const simgrid::s4u::Link* backbone)
 363 {
 364   XBT_DEBUG("Push Host_link for host '%s' to position %lu", netpoint->get_cname(), netpoint->id());
 365   simgrid::s4u::LinkInRoute linkUp{link_up};
 366   simgrid::s4u::LinkInRoute linkDown{link_down};
 367   if (backbone) {
 368     simgrid::s4u::LinkInRoute linkBB{backbone};
 369     zone->add_route(netpoint, nullptr, nullptr, nullptr, {linkUp, linkBB}, false);
 370     zone->add_route(nullptr, netpoint, nullptr, nullptr, {linkBB, linkDown}, false);
 371   } else {
 372     zone->add_route(netpoint, nullptr, nullptr, nullptr, {linkUp}, false);
 373     zone->add_route(nullptr, netpoint, nullptr, nullptr, {linkDown}, false);
 374   }
 375 }
 376
 377 /** @brief Add a link connecting a host to the rest of its StarZone */
 378 static void sg_platf_build_hostlink(simgrid::kernel::routing::StarZone* zone,
 379                                     const simgrid::kernel::routing::HostLinkCreationArgs* hostlink,
 380                                     const simgrid::s4u::Link* backbone)
 381 {
 382   const auto engine = simgrid::s4u::Engine::get_instance();
 383   auto netpoint     = engine->host_by_name(hostlink->id)->get_netpoint();
 384   xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
 385
 386   const auto linkUp   = engine->link_by_name_or_null(hostlink->link_up);
 387   const auto linkDown = engine->link_by_name_or_null(hostlink->link_down);
 388
 389   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
 390   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
 391   sg_platf_cluster_set_hostlink(zone, netpoint, linkUp, linkDown, backbone);
 392 }
 393
 394 /** @brief Create a cabinet (set of hosts) inside a Cluster(StarZone) */
 395 static void sg_platf_build_cabinet(simgrid::kernel::routing::StarZone* zone,
 396                                    const simgrid::kernel::routing::CabinetCreationArgs* args,
 397                                    const simgrid::s4u::Link* backbone)
 398 {
 399   for (int const& radical : args->radicals) {
 400     std::string id   = args->prefix + std::to_string(radical) + args->suffix;
 401     auto const* host = zone->create_host(id, {args->speed})->seal();
 402
 403     const auto* link_up   = zone->create_link("link_" + id + "_UP", {args->bw})->set_latency(args->lat)->seal();
 404     const auto* link_down = zone->create_link("link_" + id + "_DOWN", {args->bw})->set_latency(args->lat)->seal();
 405
 406     sg_platf_cluster_set_hostlink(zone, host->get_netpoint(), link_up, link_down, backbone);
 407   }
 408 }
 409
 410 static void sg_platf_zone_cluster_populate(const simgrid::kernel::routing::ClusterZoneCreationArgs* cluster)
 411 {
 412   auto* zone = dynamic_cast<simgrid::kernel::routing::StarZone*>(current_routing);
 413   xbt_assert(zone, "Host_links are only valid for Cluster(Star)");
 414
 415   const simgrid::s4u::Link* backbone = nullptr;
 416   /* create backbone */
 417   if (cluster->backbone) {
 418     sg_platf_new_link(cluster->backbone.get());
 419     backbone = simgrid::s4u::Link::by_name(cluster->backbone->id);
 420   }
 421
 422   /* create host_links for hosts */
 423   for (auto const& hostlink : cluster->host_links) {
 424     sg_platf_build_hostlink(zone, &hostlink, backbone);
 425   }
 426
 427   /* create cabinets */
 428   for (auto const& cabinet : cluster->cabinets) {
 429     sg_platf_build_cabinet(zone, &cabinet, backbone);
 430   }
 431 }
 432
 433 void routing_cluster_add_backbone(std::unique_ptr<simgrid::kernel::routing::LinkCreationArgs> link)
 434 {
 435   zone_cluster.backbone = std::move(link);
 436 }
 437
 438 void sg_platf_new_cabinet(const simgrid::kernel::routing::CabinetCreationArgs* args)
 439 {
 440   xbt_assert(args, "Invalid nullptr argument");
 441   zone_cluster.cabinets.emplace_back(*args);
 442 }
 443
 444 /*************************************************************************************************/
 445 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
 446 {
 447   current_routing->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
 448                              route->symmetrical);
 449 }
 450
 451 void sg_platf_new_bypass_route(simgrid::kernel::routing::RouteCreationArgs* route)
 452 {
 453   current_routing->add_bypass_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list);
 454 }
 455
 456 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
 457 {
 458   const auto* engine = simgrid::s4u::Engine::get_instance();
 459   sg_host_t host = sg_host_by_name(actor->host);
 460   if (not host) {
 461     // The requested host does not exist. Do a nice message to the user
 462     std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
 463                       "' does not exist\nExisting hosts: '";
 464
 465     std::vector<simgrid::s4u::Host*> list = engine->get_all_hosts();
 466
 467     for (auto const& some_host : list) {
 468       msg += some_host->get_name();
 469       msg += "', '";
 470       if (msg.length() > 1024) {
 471         msg.pop_back(); // remove trailing quote
 472         msg += "...(list truncated)......";
 473         break;
 474       }
 475     }
 476     xbt_die("%s", msg.c_str());
 477   }
 478   const simgrid::kernel::actor::ActorCodeFactory& factory = engine->get_impl()->get_function(actor->function);
 479   xbt_assert(factory, "Error while creating an actor from the XML file: Function '%s' not registered", actor->function);
 480
 481   double start_time = actor->start_time;
 482   double kill_time  = actor->kill_time;
 483   bool auto_restart = actor->restart_on_failure;
 484
 485   std::string actor_name                 = actor->args[0];
 486   simgrid::kernel::actor::ActorCode code = factory(std::move(actor->args));
 487
 488   auto* arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 489                                                      auto_restart);
 490
 491   host->get_impl()->add_actor_at_boot(arg);
 492
 493   if (start_time > simgrid::s4u::Engine::get_clock()) {
 494     arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 495                                                  auto_restart);
 496
 497     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
 498     simgrid::kernel::timer::Timer::set(start_time, [arg, auto_restart]() {
 499       simgrid::kernel::actor::ActorImplPtr new_actor =
 500           simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), arg->code, arg->data, arg->host, nullptr);
 501       new_actor->set_properties(arg->properties);
 502       if (arg->kill_time >= 0)
 503         new_actor->set_kill_time(arg->kill_time);
 504       if (auto_restart)
 505         new_actor->set_auto_restart(auto_restart);
 506       delete arg;
 507     });
 508   } else { // start_time <= simgrid::s4u::Engine::get_clock()
 509     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
 510
 511     try {
 512       simgrid::kernel::actor::ActorImplPtr new_actor = nullptr;
 513       new_actor = simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), code, nullptr, host, nullptr);
 514       new_actor->set_properties(arg->properties);
 515       /* The actor creation will fail if the host is currently dead, but that's fine */
 516       if (arg->kill_time >= 0)
 517         new_actor->set_kill_time(arg->kill_time);
 518       if (auto_restart)
 519         new_actor->set_auto_restart(auto_restart);
 520     } catch (simgrid::HostFailureException const&) {
 521       XBT_WARN("Deployment includes some initially turned off Hosts ... nevermind.");
 522     }
 523   }
 524 }
 525
 526 /**
 527  * @brief Auxiliary function to build the object NetZoneImpl
 528  *
 529  * Builds the objects, setting its parent properties and root netzone if needed
 530  * @param zone the parameters defining the Zone to build.
 531  * @return Pointer to recently created netzone
 532  */
 533 static simgrid::kernel::routing::NetZoneImpl*
 534 sg_platf_create_zone(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 535 {
 536   /* search the routing model */
 537   const simgrid::s4u::NetZone* new_zone = nullptr;
 538
 539   if (strcasecmp(zone->routing.c_str(), "Cluster") == 0) {
 540     new_zone = simgrid::s4u::create_star_zone(zone->id);
 541   } else if (strcasecmp(zone->routing.c_str(), "Dijkstra") == 0) {
 542     new_zone = simgrid::s4u::create_dijkstra_zone(zone->id, false);
 543   } else if (strcasecmp(zone->routing.c_str(), "DijkstraCache") == 0) {
 544     new_zone = simgrid::s4u::create_dijkstra_zone(zone->id, true);
 545   } else if (strcasecmp(zone->routing.c_str(), "Floyd") == 0) {
 546     new_zone = simgrid::s4u::create_floyd_zone(zone->id);
 547   } else if (strcasecmp(zone->routing.c_str(), "Full") == 0) {
 548     new_zone = simgrid::s4u::create_full_zone(zone->id);
 549   } else if (strcasecmp(zone->routing.c_str(), "None") == 0) {
 550     new_zone = simgrid::s4u::create_empty_zone(zone->id);
 551   } else if (strcasecmp(zone->routing.c_str(), "Vivaldi") == 0) {
 552     new_zone = simgrid::s4u::create_vivaldi_zone(zone->id);
 553   } else if (strcasecmp(zone->routing.c_str(), "Wifi") == 0) {
 554     new_zone = simgrid::s4u::create_wifi_zone(zone->id);
 555   } else {
 556     xbt_die("Not a valid model!");
 557   }
 558
 559   simgrid::kernel::routing::NetZoneImpl* new_zone_impl = new_zone->get_impl();
 560   new_zone_impl->set_parent(current_routing);
 561
 562   return new_zone_impl;
 563 }
 564
 565 /**
 566  * @brief Add a Zone to the platform
 567  *
 568  * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
 569  * and before the corresponding call to sg_platf_new_zone_seal() will be added to this Zone.
 570  *
 571  * Once this function was called, the configuration concerning the used models cannot be changed anymore.
 572  *
 573  * @param zone the parameters defining the Zone to build.
 574  */
 575 simgrid::kernel::routing::NetZoneImpl* sg_platf_new_zone_begin(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 576 {
 577   zone_cluster.routing = zone->routing;
 578   current_routing      = sg_platf_create_zone(zone);
 579
 580   return current_routing;
 581 }
 582
 583 void sg_platf_new_zone_set_properties(const std::unordered_map<std::string, std::string>& props)
 584 {
 585   xbt_assert(current_routing, "Cannot set properties of the current Zone: none under construction");
 586
 587   current_routing->set_properties(props);
 588 }
 589
 590 /**
 591  * @brief Specify that the description of the current Zone is finished
 592  *
 593  * Once you've declared all the content of your Zone, you have to seal
 594  * it with this call. Your Zone is not usable until you call this function.
 595  */
 596 void sg_platf_new_zone_seal()
 597 {
 598   xbt_assert(current_routing, "Cannot seal the current Zone: none under construction");
 599   if (strcasecmp(zone_cluster.routing.c_str(), "Cluster") == 0) {
 600     sg_platf_zone_cluster_populate(&zone_cluster);
 601     zone_cluster.routing = "";
 602     zone_cluster.host_links.clear();
 603     zone_cluster.cabinets.clear();
 604     zone_cluster.backbone.reset();
 605   }
 606   current_routing->seal();
 607   current_routing = current_routing->get_parent();
 608 }
 609
 610 /** @brief Add a link connecting a host to the rest of its Zone (which must be cluster or vivaldi) */
 611 void sg_platf_new_hostlink(const simgrid::kernel::routing::HostLinkCreationArgs* hostlink)
 612 {
 613   xbt_assert(hostlink, "Invalid nullptr parameter");
 614   zone_cluster.host_links.emplace_back(*hostlink);
 615 }
 616
 617 void sg_platf_new_trace(simgrid::kernel::routing::ProfileCreationArgs* args)
 618 {
 619   simgrid::kernel::profile::Profile* profile;
 620   if (not args->file.empty()) {
 621     profile = simgrid::kernel::profile::Profile::from_file(args->file);
 622   } else {
 623     xbt_assert(not args->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
 624                args->id.c_str());
 625     profile = simgrid::kernel::profile::Profile::from_string(args->id, args->pc_data, args->periodicity);
 626   }
 627   traces_set_list.insert({args->id, profile});
 628 }