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 #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/surf/HostImpl.hpp"
  26 #include "src/surf/xml/platf_private.hpp"
  27
  28 #include <algorithm>
  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 simgrid::kernel::routing::ClusterZoneCreationArgs
  42     zone_cluster; /* temporary store data for irregular clusters, created with <zone routing="Cluster"> */
  43
  44 /** The current NetZone in the parsing */
  45 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
  46 static simgrid::s4u::Host* current_host = nullptr;
  47
  48 /** Module management function: creates all internal data structures */
  49 void sg_platf_init()
  50 {
  51   // Do nothing: just for symmetry of user code
  52 }
  53
  54 /** Module management function: frees all internal data structures */
  55 void sg_platf_exit()
  56 {
  57   simgrid::kernel::routing::on_cluster_creation.disconnect_slots();
  58   simgrid::s4u::Engine::on_platform_created.disconnect_slots();
  59
  60   surf_parse_lex_destroy();
  61 }
  62
  63 /** @brief Add a host to the current NetZone */
  64 void sg_platf_new_host_begin(const simgrid::kernel::routing::HostCreationArgs* args)
  65 {
  66   current_host = current_routing->create_host(args->id, args->speed_per_pstate)
  67                      ->set_coordinates(args->coord)
  68                      ->set_core_count(args->core_amount)
  69                      ->set_state_profile(args->state_trace)
  70                      ->set_speed_profile(args->speed_trace);
  71 }
  72
  73 void sg_platf_new_host_set_properties(const std::unordered_map<std::string, std::string>& props)
  74 {
  75   xbt_assert(current_host, "Cannot set properties of the current host: none under construction");
  76   current_host->set_properties(props);
  77 }
  78
  79 void sg_platf_new_host_seal(int pstate)
  80 {
  81   xbt_assert(current_host, "Cannot seal the current Host: none under construction");
  82   current_host->seal();
  83
  84   /* When energy plugin is activated, changing the pstate requires to already have the HostEnergy extension whose
  85    * allocation is triggered by the on_creation signal. Then set_pstate must be called after the signal emission */
  86
  87   if (pstate != 0)
  88     current_host->set_pstate(pstate);
  89
  90   current_host = nullptr;
  91 }
  92
  93 void sg_platf_new_peer(const simgrid::kernel::routing::PeerCreationArgs* args)
  94 {
  95   auto* zone = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
  96   xbt_assert(zone, "<peer> tag can only be used in Vivaldi netzones.");
  97
  98   const auto* peer = zone->create_host(args->id, {args->speed})
  99                          ->set_state_profile(args->state_trace)
 100                          ->set_speed_profile(args->speed_trace)
 101                          ->set_coordinates(args->coord)
 102                          ->seal();
 103
 104   zone->set_peer_link(peer->get_netpoint(), args->bw_in, args->bw_out);
 105 }
 106
 107 /** @brief Add a "router" to the network element list */
 108 simgrid::kernel::routing::NetPoint* sg_platf_new_router(const std::string& name, const std::string& coords)
 109 {
 110   auto* netpoint = current_routing->create_router(name)->set_coordinates(coords);
 111   XBT_DEBUG("Router '%s' has the id %lu", netpoint->get_cname(), netpoint->id());
 112
 113   return netpoint;
 114 }
 115
 116 static void sg_platf_set_link_properties(simgrid::s4u::Link* link,
 117                                          const simgrid::kernel::routing::LinkCreationArgs* args)
 118 {
 119   link->set_properties(args->properties)
 120       ->set_state_profile(args->state_trace)
 121       ->set_latency_profile(args->latency_trace)
 122       ->set_bandwidth_profile(args->bandwidth_trace)
 123       ->set_latency(args->latency);
 124 }
 125
 126 void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* args)
 127 {
 128   simgrid::s4u::Link* link;
 129   if (args->policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 130     link = current_routing->create_split_duplex_link(args->id, args->bandwidths);
 131   } else {
 132     link = current_routing->create_link(args->id, args->bandwidths);
 133     link->get_impl()->set_sharing_policy(args->policy, {});
 134   }
 135   sg_platf_set_link_properties(link, args);
 136   link->seal();
 137 }
 138
 139 void sg_platf_new_disk(const simgrid::kernel::routing::DiskCreationArgs* disk)
 140 {
 141   const simgrid::s4u::Disk* new_disk = current_routing->create_disk(disk->id, disk->read_bw, disk->write_bw)
 142                                            ->set_host(current_host)
 143                                            ->set_properties(disk->properties)
 144                                            ->seal();
 145
 146   current_host->add_disk(new_disk);
 147 }
 148
 149 /*************************************************************************************************/
 150 /** @brief Auxiliary function to create hosts */
 151 static std::pair<simgrid::kernel::routing::NetPoint*, simgrid::kernel::routing::NetPoint*>
 152 sg_platf_cluster_create_host(const simgrid::kernel::routing::ClusterCreationArgs* cluster, simgrid::s4u::NetZone* zone,
 153                              const std::vector<unsigned long>& /*coord*/, unsigned long id)
 154 {
 155   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 156              "Zone(%s): error when creating host number %lu in the zone. Insufficient number of radicals available "
 157              "(total = %zu). Check the 'radical' parameter in XML",
 158              cluster->id.c_str(), id, cluster->radicals.size());
 159
 160   std::string host_id = std::string(cluster->prefix) + std::to_string(cluster->radicals[id]) + cluster->suffix;
 161   XBT_DEBUG("Cluster: creating host=%s speed=%f", host_id.c_str(), cluster->speeds.front());
 162   const simgrid::s4u::Host* host = zone->create_host(host_id, cluster->speeds)
 163                                        ->set_core_count(cluster->core_amount)
 164                                        ->set_properties(cluster->properties)
 165                                        ->seal();
 166   return std::make_pair(host->get_netpoint(), nullptr);
 167 }
 168
 169 /** @brief Auxiliary function to create loopback links */
 170 static simgrid::s4u::Link*
 171 sg_platf_cluster_create_loopback(const simgrid::kernel::routing::ClusterCreationArgs* cluster,
 172                                  simgrid::s4u::NetZone* zone, const std::vector<unsigned long>& /*coord*/,
 173                                  unsigned long id)
 174 {
 175   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 176              "Zone(%s): error when creating loopback for host number %lu in the zone. Insufficient number of "
 177              "radicals available "
 178              "(total = %zu). Check the 'radical' parameter in XML",
 179              cluster->id.c_str(), id, cluster->radicals.size());
 180
 181   std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(cluster->radicals[id]) + "_loopback";
 182   XBT_DEBUG("Cluster: creating loopback link=%s bw=%f", link_id.c_str(), cluster->loopback_bw);
 183
 184   simgrid::s4u::Link* loopback = zone->create_link(link_id, cluster->loopback_bw)
 185                                      ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
 186                                      ->set_latency(cluster->loopback_lat)
 187                                      ->seal();
 188   return loopback;
 189 }
 190
 191 /** @brief Auxiliary function to create limiter links */
 192 static simgrid::s4u::Link* sg_platf_cluster_create_limiter(const simgrid::kernel::routing::ClusterCreationArgs* cluster,
 193                                                            simgrid::s4u::NetZone* zone,
 194                                                            const std::vector<unsigned long>& /*coord*/,
 195                                                            unsigned long id)
 196 {
 197   std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(id) + "_limiter";
 198   XBT_DEBUG("Cluster: creating limiter link=%s bw=%f", link_id.c_str(), cluster->limiter_link);
 199
 200   simgrid::s4u::Link* limiter = zone->create_link(link_id, cluster->limiter_link)->seal();
 201   return limiter;
 202 }
 203
 204 /** @brief Create Torus, Fat-Tree and Dragonfly clusters */
 205 static void sg_platf_new_cluster_hierarchical(const simgrid::kernel::routing::ClusterCreationArgs* cluster)
 206 {
 207   using namespace std::placeholders;
 208   using simgrid::kernel::routing::DragonflyZone;
 209   using simgrid::kernel::routing::FatTreeZone;
 210   using simgrid::kernel::routing::TorusZone;
 211
 212   auto set_host = std::bind(sg_platf_cluster_create_host, cluster, _1, _2, _3);
 213   std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb> set_loopback{};
 214   std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb> set_limiter{};
 215
 216   if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
 217     set_loopback = std::bind(sg_platf_cluster_create_loopback, cluster, _1, _2, _3);
 218   }
 219
 220   if (cluster->limiter_link > 0) {
 221     set_limiter = std::bind(sg_platf_cluster_create_limiter, cluster, _1, _2, _3);
 222   }
 223
 224   simgrid::s4u::NetZone const* parent = current_routing ? current_routing->get_iface() : nullptr;
 225   simgrid::s4u::NetZone* zone;
 226   switch (cluster->topology) {
 227     case simgrid::kernel::routing::ClusterTopology::TORUS:
 228       zone = simgrid::s4u::create_torus_zone(
 229           cluster->id, parent, TorusZone::parse_topo_parameters(cluster->topo_parameters),
 230           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 231       break;
 232     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 233       zone = simgrid::s4u::create_dragonfly_zone(
 234           cluster->id, parent, DragonflyZone::parse_topo_parameters(cluster->topo_parameters),
 235           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 236       break;
 237     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 238       zone = simgrid::s4u::create_fatTree_zone(
 239           cluster->id, parent, FatTreeZone::parse_topo_parameters(cluster->topo_parameters),
 240           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 241       break;
 242     default:
 243       THROW_IMPOSSIBLE;
 244   }
 245   zone->seal();
 246 }
 247
 248 /*************************************************************************************************/
 249 /** @brief Create regular Cluster */
 250 static void sg_platf_new_cluster_flat(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 251 {
 252   auto* zone                          = simgrid::s4u::create_star_zone(cluster->id);
 253   simgrid::s4u::NetZone const* parent = current_routing ? current_routing->get_iface() : nullptr;
 254   if (parent)
 255     zone->set_parent(parent);
 256
 257   /* set properties */
 258   for (auto const& elm : cluster->properties)
 259     zone->set_property(elm.first, elm.second);
 260
 261   /* Make the backbone */
 262   const simgrid::s4u::Link* backbone = nullptr;
 263   if ((cluster->bb_bw > 0) || (cluster->bb_lat > 0)) {
 264     std::string bb_name = std::string(cluster->id) + "_backbone";
 265     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/> <!--backbone -->", bb_name.c_str(), cluster->bb_bw,
 266               cluster->bb_lat);
 267
 268     backbone = zone->create_link(bb_name, cluster->bb_bw)
 269                    ->set_sharing_policy(cluster->bb_sharing_policy)
 270                    ->set_latency(cluster->bb_lat)
 271                    ->seal();
 272   }
 273
 274   for (int const& i : cluster->radicals) {
 275     std::string host_id = std::string(cluster->prefix) + std::to_string(i) + cluster->suffix;
 276
 277     XBT_DEBUG("<host\tid=\"%s\"\tspeed=\"%f\">", host_id.c_str(), cluster->speeds.front());
 278     const auto* host = zone->create_host(host_id, cluster->speeds)
 279                            ->set_core_count(cluster->core_amount)
 280                            ->set_properties(cluster->properties)
 281                            ->seal();
 282
 283     XBT_DEBUG("</host>");
 284
 285     std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(i);
 286     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id.c_str(), cluster->bw, cluster->lat);
 287
 288     // add a loopback link
 289     if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
 290       std::string loopback_name = link_id + "_loopback";
 291       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", loopback_name.c_str(), cluster->loopback_bw);
 292
 293       const auto* loopback = zone->create_link(loopback_name, cluster->loopback_bw)
 294                                  ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
 295                                  ->set_latency(cluster->loopback_lat)
 296                                  ->seal();
 297
 298       zone->add_route(host->get_netpoint(), host->get_netpoint(), nullptr, nullptr,
 299                       {simgrid::s4u::LinkInRoute(loopback)});
 300     }
 301
 302     // add a limiter link (shared link to account for maximal bandwidth of the node)
 303     const simgrid::s4u::Link* limiter = nullptr;
 304     if (cluster->limiter_link > 0) {
 305       std::string limiter_name = std::string(link_id) + "_limiter";
 306       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", limiter_name.c_str(), cluster->limiter_link);
 307
 308       limiter = zone->create_link(limiter_name, cluster->limiter_link)->seal();
 309     }
 310
 311     // create link
 312     const simgrid::s4u::Link* link;
 313     if (cluster->sharing_policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 314       link = zone->create_split_duplex_link(link_id, cluster->bw)->set_latency(cluster->lat)->seal();
 315     } else {
 316       link = zone->create_link(link_id, cluster->bw)->set_latency(cluster->lat)->seal();
 317     }
 318
 319     /* adding routes */
 320     std::vector<simgrid::s4u::LinkInRoute> links;
 321     if (limiter)
 322       links.emplace_back(limiter);
 323     links.emplace_back(link, simgrid::s4u::LinkInRoute::Direction::UP);
 324     if (backbone)
 325       links.emplace_back(backbone);
 326
 327     zone->add_route(host->get_netpoint(), nullptr, nullptr, nullptr, links, true);
 328   }
 329
 330   // Add a router.
 331   XBT_DEBUG(" ");
 332   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
 333   if (cluster->router_id.empty())
 334     cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
 335   auto* router = zone->create_router(cluster->router_id);
 336   zone->add_route(router, nullptr, nullptr, nullptr, {});
 337
 338   zone->seal();
 339   simgrid::kernel::routing::on_cluster_creation(*cluster);
 340 }
 341
 342 void sg_platf_new_tag_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 343 {
 344   switch (cluster->topology) {
 345     case simgrid::kernel::routing::ClusterTopology::TORUS:
 346     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 347     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 348       sg_platf_new_cluster_hierarchical(cluster);
 349       break;
 350     default:
 351       sg_platf_new_cluster_flat(cluster);
 352       break;
 353   }
 354 }
 355 /*************************************************************************************************/
 356 /** @brief Set the links for internal node inside a Cluster(Star) */
 357 static void sg_platf_cluster_set_hostlink(simgrid::kernel::routing::StarZone* zone,
 358                                           simgrid::kernel::routing::NetPoint* netpoint,
 359                                           const simgrid::s4u::Link* link_up, const simgrid::s4u::Link* link_down,
 360                                           const simgrid::s4u::Link* backbone)
 361 {
 362   XBT_DEBUG("Push Host_link for host '%s' to position %lu", netpoint->get_cname(), netpoint->id());
 363   simgrid::s4u::LinkInRoute linkUp{link_up};
 364   simgrid::s4u::LinkInRoute linkDown{link_down};
 365   if (backbone) {
 366     simgrid::s4u::LinkInRoute linkBB{backbone};
 367     zone->add_route(netpoint, nullptr, nullptr, nullptr, {linkUp, linkBB}, false);
 368     zone->add_route(nullptr, netpoint, nullptr, nullptr, {linkBB, linkDown}, false);
 369   } else {
 370     zone->add_route(netpoint, nullptr, nullptr, nullptr, {linkUp}, false);
 371     zone->add_route(nullptr, netpoint, nullptr, nullptr, {linkDown}, false);
 372   }
 373 }
 374
 375 /** @brief Add a link connecting a host to the rest of its StarZone */
 376 static void sg_platf_build_hostlink(simgrid::kernel::routing::StarZone* zone,
 377                                     const simgrid::kernel::routing::HostLinkCreationArgs* hostlink,
 378                                     const simgrid::s4u::Link* backbone)
 379 {
 380   simgrid::kernel::routing::NetPoint* netpoint = simgrid::s4u::Host::by_name(hostlink->id)->get_netpoint();
 381   xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
 382
 383   const simgrid::s4u::Link* linkUp   = simgrid::s4u::Link::by_name_or_null(hostlink->link_up);
 384   const simgrid::s4u::Link* linkDown = simgrid::s4u::Link::by_name_or_null(hostlink->link_down);
 385
 386   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
 387   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
 388   sg_platf_cluster_set_hostlink(zone, netpoint, linkUp, linkDown, backbone);
 389 }
 390
 391 /** @brief Create a cabinet (set of hosts) inside a Cluster(StarZone) */
 392 static void sg_platf_build_cabinet(simgrid::kernel::routing::StarZone* zone,
 393                                    const simgrid::kernel::routing::CabinetCreationArgs* args,
 394                                    const simgrid::s4u::Link* backbone)
 395 {
 396   for (int const& radical : args->radicals) {
 397     std::string id   = args->prefix + std::to_string(radical) + args->suffix;
 398     auto const* host = zone->create_host(id, {args->speed})->seal();
 399
 400     const auto* link_up   = zone->create_link("link_" + id + "_UP", {args->bw})->set_latency(args->lat)->seal();
 401     const auto* link_down = zone->create_link("link_" + id + "_DOWN", {args->bw})->set_latency(args->lat)->seal();
 402
 403     sg_platf_cluster_set_hostlink(zone, host->get_netpoint(), link_up, link_down, backbone);
 404   }
 405 }
 406
 407 static void sg_platf_zone_cluster_populate(const simgrid::kernel::routing::ClusterZoneCreationArgs* cluster)
 408 {
 409   auto* zone = dynamic_cast<simgrid::kernel::routing::StarZone*>(current_routing);
 410   xbt_assert(zone, "Host_links are only valid for Cluster(Star)");
 411
 412   const simgrid::s4u::Link* backbone = nullptr;
 413   /* create backbone */
 414   if (cluster->backbone) {
 415     sg_platf_new_link(cluster->backbone.get());
 416     backbone = simgrid::s4u::Link::by_name(cluster->backbone->id);
 417   }
 418
 419   /* create host_links for hosts */
 420   for (auto const& hostlink : cluster->host_links) {
 421     sg_platf_build_hostlink(zone, &hostlink, backbone);
 422   }
 423
 424   /* create cabinets */
 425   for (auto const& cabinet : cluster->cabinets) {
 426     sg_platf_build_cabinet(zone, &cabinet, backbone);
 427   }
 428 }
 429
 430 void routing_cluster_add_backbone(std::unique_ptr<simgrid::kernel::routing::LinkCreationArgs> link)
 431 {
 432   zone_cluster.backbone = std::move(link);
 433 }
 434
 435 void sg_platf_new_cabinet(const simgrid::kernel::routing::CabinetCreationArgs* args)
 436 {
 437   xbt_assert(args, "Invalid nullptr argument");
 438   zone_cluster.cabinets.emplace_back(*args);
 439 }
 440
 441 /*************************************************************************************************/
 442 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
 443 {
 444   current_routing->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
 445                              route->symmetrical);
 446 }
 447
 448 void sg_platf_new_bypass_route(simgrid::kernel::routing::RouteCreationArgs* route)
 449 {
 450   current_routing->add_bypass_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list);
 451 }
 452
 453 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
 454 {
 455   sg_host_t host = sg_host_by_name(actor->host);
 456   if (not host) {
 457     // The requested host does not exist. Do a nice message to the user
 458     std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
 459                       "' does not exist\nExisting hosts: '";
 460
 461     std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
 462
 463     for (auto const& some_host : list) {
 464       msg += some_host->get_name();
 465       msg += "', '";
 466       if (msg.length() > 1024) {
 467         msg.pop_back(); // remove trailing quote
 468         msg += "...(list truncated)......";
 469         break;
 470       }
 471     }
 472     xbt_die("%s", msg.c_str());
 473   }
 474   const simgrid::kernel::actor::ActorCodeFactory& factory =
 475       simgrid::kernel::EngineImpl::get_instance()->get_function(actor->function);
 476   xbt_assert(factory, "Error while creating an actor from the XML file: Function '%s' not registered", actor->function);
 477
 478   double start_time = actor->start_time;
 479   double kill_time  = actor->kill_time;
 480   bool auto_restart = actor->restart_on_failure;
 481
 482   std::string actor_name                 = actor->args[0];
 483   simgrid::kernel::actor::ActorCode code = factory(std::move(actor->args));
 484
 485   auto* arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 486                                                      auto_restart);
 487
 488   host->get_impl()->add_actor_at_boot(arg);
 489
 490   if (start_time > simgrid::s4u::Engine::get_clock()) {
 491     arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 492                                                  auto_restart);
 493
 494     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
 495     simgrid::kernel::timer::Timer::set(start_time, [arg, auto_restart]() {
 496       simgrid::kernel::actor::ActorImplPtr new_actor =
 497           simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), arg->code, arg->data, arg->host, nullptr);
 498       new_actor->set_properties(arg->properties);
 499       if (arg->kill_time >= 0)
 500         new_actor->set_kill_time(arg->kill_time);
 501       if (auto_restart)
 502         new_actor->set_auto_restart(auto_restart);
 503       delete arg;
 504     });
 505   } else { // start_time <= simgrid::s4u::Engine::get_clock()
 506     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
 507
 508     try {
 509       simgrid::kernel::actor::ActorImplPtr new_actor = nullptr;
 510       new_actor = simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), code, nullptr, host, nullptr);
 511       new_actor->set_properties(arg->properties);
 512       /* The actor creation will fail if the host is currently dead, but that's fine */
 513       if (arg->kill_time >= 0)
 514         new_actor->set_kill_time(arg->kill_time);
 515       if (auto_restart)
 516         new_actor->set_auto_restart(auto_restart);
 517     } catch (simgrid::HostFailureException const&) {
 518       XBT_WARN("Deployment includes some initially turned off Hosts ... nevermind.");
 519     }
 520   }
 521 }
 522
 523 /**
 524  * @brief Auxiliary function to build the object NetZoneImpl
 525  *
 526  * Builds the objects, setting its parent properties and root netzone if needed
 527  * @param zone the parameters defining the Zone to build.
 528  * @return Pointer to recently created netzone
 529  */
 530 static simgrid::kernel::routing::NetZoneImpl*
 531 sg_platf_create_zone(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 532 {
 533   /* search the routing model */
 534   const simgrid::s4u::NetZone* new_zone = nullptr;
 535
 536   if (strcasecmp(zone->routing.c_str(), "Cluster") == 0) {
 537     new_zone = simgrid::s4u::create_star_zone(zone->id);
 538   } else if (strcasecmp(zone->routing.c_str(), "Dijkstra") == 0) {
 539     new_zone = simgrid::s4u::create_dijkstra_zone(zone->id, false);
 540   } else if (strcasecmp(zone->routing.c_str(), "DijkstraCache") == 0) {
 541     new_zone = simgrid::s4u::create_dijkstra_zone(zone->id, true);
 542   } else if (strcasecmp(zone->routing.c_str(), "Floyd") == 0) {
 543     new_zone = simgrid::s4u::create_floyd_zone(zone->id);
 544   } else if (strcasecmp(zone->routing.c_str(), "Full") == 0) {
 545     new_zone = simgrid::s4u::create_full_zone(zone->id);
 546   } else if (strcasecmp(zone->routing.c_str(), "None") == 0) {
 547     new_zone = simgrid::s4u::create_empty_zone(zone->id);
 548   } else if (strcasecmp(zone->routing.c_str(), "Vivaldi") == 0) {
 549     new_zone = simgrid::s4u::create_vivaldi_zone(zone->id);
 550   } else if (strcasecmp(zone->routing.c_str(), "Wifi") == 0) {
 551     new_zone = simgrid::s4u::create_wifi_zone(zone->id);
 552   } else {
 553     xbt_die("Not a valid model!");
 554   }
 555
 556   simgrid::kernel::routing::NetZoneImpl* new_zone_impl = new_zone->get_impl();
 557   new_zone_impl->set_parent(current_routing);
 558
 559   return new_zone_impl;
 560 }
 561
 562 /**
 563  * @brief Add a Zone to the platform
 564  *
 565  * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
 566  * and before the corresponding call to sg_platf_new_zone_seal() will be added to this Zone.
 567  *
 568  * Once this function was called, the configuration concerning the used models cannot be changed anymore.
 569  *
 570  * @param zone the parameters defining the Zone to build.
 571  */
 572 simgrid::kernel::routing::NetZoneImpl* sg_platf_new_zone_begin(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 573 {
 574   zone_cluster.routing = zone->routing;
 575   current_routing      = sg_platf_create_zone(zone);
 576
 577   return current_routing;
 578 }
 579
 580 void sg_platf_new_zone_set_properties(const std::unordered_map<std::string, std::string>& props)
 581 {
 582   xbt_assert(current_routing, "Cannot set properties of the current Zone: none under construction");
 583
 584   current_routing->set_properties(props);
 585 }
 586
 587 /**
 588  * @brief Specify that the description of the current Zone is finished
 589  *
 590  * Once you've declared all the content of your Zone, you have to seal
 591  * it with this call. Your Zone is not usable until you call this function.
 592  */
 593 void sg_platf_new_zone_seal()
 594 {
 595   xbt_assert(current_routing, "Cannot seal the current Zone: none under construction");
 596   if (strcasecmp(zone_cluster.routing.c_str(), "Cluster") == 0) {
 597     sg_platf_zone_cluster_populate(&zone_cluster);
 598     zone_cluster.routing = "";
 599     zone_cluster.host_links.clear();
 600     zone_cluster.cabinets.clear();
 601     zone_cluster.backbone.reset();
 602   }
 603   current_routing->seal();
 604   current_routing = current_routing->get_parent();
 605 }
 606
 607 /** @brief Add a link connecting a host to the rest of its Zone (which must be cluster or vivaldi) */
 608 void sg_platf_new_hostlink(const simgrid::kernel::routing::HostLinkCreationArgs* hostlink)
 609 {
 610   xbt_assert(hostlink, "Invalid nullptr parameter");
 611   zone_cluster.host_links.emplace_back(*hostlink);
 612 }
 613
 614 void sg_platf_new_trace(simgrid::kernel::routing::ProfileCreationArgs* args)
 615 {
 616   simgrid::kernel::profile::Profile* profile;
 617   if (not args->file.empty()) {
 618     profile = simgrid::kernel::profile::Profile::from_file(args->file);
 619   } else {
 620     xbt_assert(not args->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
 621                args->id.c_str());
 622     profile = simgrid::kernel::profile::Profile::from_string(args->id, args->pc_data, args->periodicity);
 623   }
 624   traces_set_list.insert({args->id, profile});
 625 }