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/simix/smx_private.hpp"
  26 #include "src/surf/HostImpl.hpp"
  27 #include "src/surf/xml/platf_private.hpp"
  28
  29 #include <algorithm>
  30 #include <string>
  31
  32 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  33
  34 namespace simgrid {
  35 namespace kernel {
  36 namespace routing {
  37 xbt::signal<void(ClusterCreationArgs const&)> on_cluster_creation;
  38 } // namespace routing
  39 } // namespace kernel
  40 } // namespace simgrid
  41
  42 static simgrid::kernel::routing::ClusterZoneCreationArgs
  43     zone_cluster; /* temporary store data for irregular clusters, created with <zone routing="Cluster"> */
  44
  45 /** The current NetZone in the parsing */
  46 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
  47 static simgrid::s4u::Host* current_host = nullptr;
  48
  49 /** Module management function: creates all internal data structures */
  50 void sg_platf_init()
  51 {
  52   // Do nothing: just for symmetry of user code
  53 }
  54
  55 /** Module management function: frees all internal data structures */
  56 void sg_platf_exit()
  57 {
  58   simgrid::kernel::routing::on_cluster_creation.disconnect_slots();
  59   simgrid::s4u::Engine::on_platform_created.disconnect_slots();
  60
  61   surf_parse_lex_destroy();
  62 }
  63
  64 /** @brief Add a host to the current NetZone */
  65 void sg_platf_new_host_begin(const simgrid::kernel::routing::HostCreationArgs* args)
  66 {
  67   current_host = current_routing->create_host(args->id, args->speed_per_pstate)
  68                      ->set_coordinates(args->coord)
  69                      ->set_core_count(args->core_amount)
  70                      ->set_state_profile(args->state_trace)
  71                      ->set_speed_profile(args->speed_trace);
  72 }
  73
  74 void sg_platf_new_host_set_properties(const std::unordered_map<std::string, std::string>& props)
  75 {
  76   xbt_assert(current_host, "Cannot set properties of the current host: none under construction");
  77   current_host->set_properties(props);
  78 }
  79
  80 void sg_platf_new_host_seal(int pstate)
  81 {
  82   xbt_assert(current_host, "Cannot seal the current Host: none under construction");
  83   current_host->seal();
  84
  85   /* When energy plugin is activated, changing the pstate requires to already have the HostEnergy extension whose
  86    * allocation is triggered by the on_creation signal. Then set_pstate must be called after the signal emission */
  87
  88   if (pstate != 0)
  89     current_host->set_pstate(pstate);
  90
  91   current_host = nullptr;
  92 }
  93
  94 void sg_platf_new_peer(const simgrid::kernel::routing::PeerCreationArgs* args)
  95 {
  96   auto* zone = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
  97   xbt_assert(zone, "<peer> tag can only be used in Vivaldi netzones.");
  98
  99   const auto* peer = zone->create_host(args->id, {args->speed})
 100                          ->set_state_profile(args->state_trace)
 101                          ->set_speed_profile(args->speed_trace)
 102                          ->set_coordinates(args->coord)
 103                          ->seal();
 104
 105   zone->set_peer_link(peer->get_netpoint(), args->bw_in, args->bw_out);
 106 }
 107
 108 /** @brief Add a "router" to the network element list */
 109 simgrid::kernel::routing::NetPoint* sg_platf_new_router(const std::string& name, const std::string& coords)
 110 {
 111   auto* netpoint = current_routing->create_router(name)->set_coordinates(coords);
 112   XBT_DEBUG("Router '%s' has the id %u", netpoint->get_cname(), netpoint->id());
 113
 114   return netpoint;
 115 }
 116
 117 static void sg_platf_set_link_properties(simgrid::s4u::Link* link,
 118                                          const simgrid::kernel::routing::LinkCreationArgs* args)
 119 {
 120   link->set_properties(args->properties)
 121       ->set_state_profile(args->state_trace)
 122       ->set_latency_profile(args->latency_trace)
 123       ->set_bandwidth_profile(args->bandwidth_trace)
 124       ->set_latency(args->latency);
 125 }
 126
 127 void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* args)
 128 {
 129   simgrid::s4u::Link* link;
 130   if (args->policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 131     link = current_routing->create_split_duplex_link(args->id, args->bandwidths);
 132   } else {
 133     link = current_routing->create_link(args->id, args->bandwidths)->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 int>& /*coord*/, int id)
 154 {
 155   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 156              "Zone(%s): error when creating host number %d 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 int>& /*coord*/, int id)
 173 {
 174   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 175              "Zone(%s): error when creating loopback for host number %d in the zone. Insufficient number of radicals "
 176              "available "
 177              "(total = %zu). Check the 'radical' parameter in XML",
 178              cluster->id.c_str(), id, cluster->radicals.size());
 179
 180   std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(cluster->radicals[id]) + "_loopback";
 181   XBT_DEBUG("Cluster: creating loopback link=%s bw=%f", link_id.c_str(), cluster->loopback_bw);
 182
 183   simgrid::s4u::Link* loopback = zone->create_link(link_id, cluster->loopback_bw)
 184                                      ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
 185                                      ->set_latency(cluster->loopback_lat)
 186                                      ->seal();
 187   return loopback;
 188 }
 189
 190 /** @brief Auxiliary function to create limiter links */
 191 static simgrid::s4u::Link* sg_platf_cluster_create_limiter(const simgrid::kernel::routing::ClusterCreationArgs* cluster,
 192                                                            simgrid::s4u::NetZone* zone,
 193                                                            const std::vector<unsigned int>& /*coord*/, int id)
 194 {
 195   std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(id) + "_limiter";
 196   XBT_DEBUG("Cluster: creating limiter link=%s bw=%f", link_id.c_str(), cluster->limiter_link);
 197
 198   simgrid::s4u::Link* limiter = zone->create_link(link_id, cluster->limiter_link)->seal();
 199   return limiter;
 200 }
 201
 202 /** @brief Create Torus, Fat-Tree and Dragonfly clusters */
 203 static void sg_platf_new_cluster_hierarchical(const simgrid::kernel::routing::ClusterCreationArgs* cluster)
 204 {
 205   using namespace std::placeholders;
 206   using simgrid::kernel::routing::DragonflyZone;
 207   using simgrid::kernel::routing::FatTreeZone;
 208   using simgrid::kernel::routing::TorusZone;
 209
 210   auto set_host = std::bind(sg_platf_cluster_create_host, cluster, _1, _2, _3);
 211   std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb> set_loopback{};
 212   std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb> set_limiter{};
 213
 214   if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
 215     set_loopback = std::bind(sg_platf_cluster_create_loopback, cluster, _1, _2, _3);
 216   }
 217
 218   if (cluster->limiter_link > 0) {
 219     set_limiter = std::bind(sg_platf_cluster_create_limiter, cluster, _1, _2, _3);
 220   }
 221
 222   simgrid::s4u::NetZone const* parent = current_routing ? current_routing->get_iface() : nullptr;
 223   simgrid::s4u::NetZone* zone;
 224   switch (cluster->topology) {
 225     case simgrid::kernel::routing::ClusterTopology::TORUS:
 226       zone = simgrid::s4u::create_torus_zone(
 227           cluster->id, parent, TorusZone::parse_topo_parameters(cluster->topo_parameters),
 228           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 229       break;
 230     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 231       zone = simgrid::s4u::create_dragonfly_zone(
 232           cluster->id, parent, DragonflyZone::parse_topo_parameters(cluster->topo_parameters),
 233           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 234       break;
 235     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 236       zone = simgrid::s4u::create_fatTree_zone(
 237           cluster->id, parent, FatTreeZone::parse_topo_parameters(cluster->topo_parameters),
 238           {set_host, set_loopback, set_limiter}, cluster->bw, cluster->lat, cluster->sharing_policy);
 239       break;
 240     default:
 241       THROW_IMPOSSIBLE;
 242   }
 243   zone->seal();
 244 }
 245
 246 /*************************************************************************************************/
 247 /** @brief Create regular Cluster */
 248 static void sg_platf_new_cluster_flat(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 249 {
 250   auto* zone                          = simgrid::s4u::create_star_zone(cluster->id);
 251   simgrid::s4u::NetZone const* parent = current_routing ? current_routing->get_iface() : nullptr;
 252   if (parent)
 253     zone->set_parent(parent);
 254
 255   /* set properties */
 256   for (auto const& elm : cluster->properties)
 257     zone->set_property(elm.first, elm.second);
 258
 259   /* Make the backbone */
 260   const simgrid::s4u::Link* backbone = nullptr;
 261   if ((cluster->bb_bw > 0) || (cluster->bb_lat > 0)) {
 262     std::string bb_name = std::string(cluster->id) + "_backbone";
 263     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/> <!--backbone -->", bb_name.c_str(), cluster->bb_bw,
 264               cluster->bb_lat);
 265
 266     backbone = zone->create_link(bb_name, cluster->bb_bw)
 267                    ->set_sharing_policy(cluster->bb_sharing_policy)
 268                    ->set_latency(cluster->bb_lat)
 269                    ->seal();
 270   }
 271
 272   for (int const& i : cluster->radicals) {
 273     std::string host_id = std::string(cluster->prefix) + std::to_string(i) + cluster->suffix;
 274
 275     XBT_DEBUG("<host\tid=\"%s\"\tspeed=\"%f\">", host_id.c_str(), cluster->speeds.front());
 276     const auto* host = zone->create_host(host_id, cluster->speeds)
 277                            ->set_core_count(cluster->core_amount)
 278                            ->set_properties(cluster->properties)
 279                            ->seal();
 280
 281     XBT_DEBUG("</host>");
 282
 283     std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(i);
 284     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id.c_str(), cluster->bw, cluster->lat);
 285
 286     // add a loopback link
 287     if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
 288       std::string loopback_name = link_id + "_loopback";
 289       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", loopback_name.c_str(), cluster->loopback_bw);
 290
 291       const auto* loopback = zone->create_link(loopback_name, cluster->loopback_bw)
 292                                  ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
 293                                  ->set_latency(cluster->loopback_lat)
 294                                  ->seal();
 295
 296       zone->add_route(host->get_netpoint(), host->get_netpoint(), nullptr, nullptr,
 297                       {simgrid::s4u::LinkInRoute(loopback)});
 298     }
 299
 300     // add a limiter link (shared link to account for maximal bandwidth of the node)
 301     const simgrid::s4u::Link* limiter = nullptr;
 302     if (cluster->limiter_link > 0) {
 303       std::string limiter_name = std::string(link_id) + "_limiter";
 304       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", limiter_name.c_str(), cluster->limiter_link);
 305
 306       limiter = zone->create_link(limiter_name, cluster->limiter_link)->seal();
 307     }
 308
 309     // create link
 310     const simgrid::s4u::Link* link;
 311     if (cluster->sharing_policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 312       link = zone->create_split_duplex_link(link_id, cluster->bw)->set_latency(cluster->lat)->seal();
 313     } else {
 314       link = zone->create_link(link_id, cluster->bw)->set_latency(cluster->lat)->seal();
 315     }
 316
 317     /* adding routes */
 318     std::vector<simgrid::s4u::LinkInRoute> links;
 319     if (limiter)
 320       links.emplace_back(limiter);
 321     links.emplace_back(link, simgrid::s4u::LinkInRoute::Direction::UP);
 322     if (backbone)
 323       links.emplace_back(backbone);
 324
 325     zone->add_route(host->get_netpoint(), nullptr, nullptr, nullptr, links, true);
 326   }
 327
 328   // Add a router.
 329   XBT_DEBUG(" ");
 330   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
 331   if (cluster->router_id.empty())
 332     cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
 333   auto* router = zone->create_router(cluster->router_id);
 334   zone->add_route(router, nullptr, nullptr, nullptr, {});
 335
 336   zone->seal();
 337   simgrid::kernel::routing::on_cluster_creation(*cluster);
 338 }
 339
 340 void sg_platf_new_tag_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 341 {
 342   switch (cluster->topology) {
 343     case simgrid::kernel::routing::ClusterTopology::TORUS:
 344     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 345     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 346       sg_platf_new_cluster_hierarchical(cluster);
 347       break;
 348     default:
 349       sg_platf_new_cluster_flat(cluster);
 350       break;
 351   }
 352 }
 353 /*************************************************************************************************/
 354 /** @brief Set the links for internal node inside a Cluster(Star) */
 355 static void sg_platf_cluster_set_hostlink(simgrid::kernel::routing::StarZone* zone,
 356                                           simgrid::kernel::routing::NetPoint* netpoint,
 357                                           const simgrid::s4u::Link* link_up, const simgrid::s4u::Link* link_down,
 358                                           const simgrid::s4u::Link* backbone)
 359 {
 360   XBT_DEBUG("Push Host_link for host '%s' to position %u", netpoint->get_cname(), netpoint->id());
 361   simgrid::s4u::LinkInRoute linkUp{link_up};
 362   simgrid::s4u::LinkInRoute linkDown{link_down};
 363   if (backbone) {
 364     simgrid::s4u::LinkInRoute linkBB{backbone};
 365     zone->add_route(netpoint, nullptr, nullptr, nullptr, {linkUp, linkBB}, false);
 366     zone->add_route(nullptr, netpoint, nullptr, nullptr, {linkBB, linkDown}, false);
 367   } else {
 368     zone->add_route(netpoint, nullptr, nullptr, nullptr, {linkUp}, false);
 369     zone->add_route(nullptr, netpoint, nullptr, nullptr, {linkDown}, false);
 370   }
 371 }
 372
 373 /** @brief Add a link connecting a host to the rest of its StarZone */
 374 static void sg_platf_build_hostlink(simgrid::kernel::routing::StarZone* zone,
 375                                     const simgrid::kernel::routing::HostLinkCreationArgs* hostlink,
 376                                     const simgrid::s4u::Link* backbone)
 377 {
 378   simgrid::kernel::routing::NetPoint* netpoint = simgrid::s4u::Host::by_name(hostlink->id)->get_netpoint();
 379   xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
 380
 381   const simgrid::s4u::Link* linkUp   = simgrid::s4u::Link::by_name_or_null(hostlink->link_up);
 382   const simgrid::s4u::Link* linkDown = simgrid::s4u::Link::by_name_or_null(hostlink->link_down);
 383
 384   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
 385   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
 386   sg_platf_cluster_set_hostlink(zone, netpoint, linkUp, linkDown, backbone);
 387 }
 388
 389 /** @brief Create a cabinet (set of hosts) inside a Cluster(StarZone) */
 390 static void sg_platf_build_cabinet(simgrid::kernel::routing::StarZone* zone,
 391                                    const simgrid::kernel::routing::CabinetCreationArgs* args,
 392                                    const simgrid::s4u::Link* backbone)
 393 {
 394   for (int const& radical : args->radicals) {
 395     std::string id   = args->prefix + std::to_string(radical) + args->suffix;
 396     auto const* host = zone->create_host(id, {args->speed})->seal();
 397
 398     const auto* link_up   = zone->create_link("link_" + id + "_UP", {args->bw})->set_latency(args->lat)->seal();
 399     const auto* link_down = zone->create_link("link_" + id + "_DOWN", {args->bw})->set_latency(args->lat)->seal();
 400
 401     sg_platf_cluster_set_hostlink(zone, host->get_netpoint(), link_up, link_down, backbone);
 402   }
 403 }
 404
 405 static void sg_platf_zone_cluster_populate(const simgrid::kernel::routing::ClusterZoneCreationArgs* cluster)
 406 {
 407   auto* zone = dynamic_cast<simgrid::kernel::routing::StarZone*>(current_routing);
 408   xbt_assert(zone, "Host_links are only valid for Cluster(Star)");
 409
 410   const simgrid::s4u::Link* backbone = nullptr;
 411   /* create backbone */
 412   if (cluster->backbone) {
 413     sg_platf_new_link(cluster->backbone.get());
 414     backbone = simgrid::s4u::Link::by_name(cluster->backbone->id);
 415   }
 416
 417   /* create host_links for hosts */
 418   for (auto const& hostlink : cluster->host_links) {
 419     sg_platf_build_hostlink(zone, &hostlink, backbone);
 420   }
 421
 422   /* create cabinets */
 423   for (auto const& cabinet : cluster->cabinets) {
 424     sg_platf_build_cabinet(zone, &cabinet, backbone);
 425   }
 426 }
 427
 428 void routing_cluster_add_backbone(std::unique_ptr<simgrid::kernel::routing::LinkCreationArgs> link)
 429 {
 430   zone_cluster.backbone = std::move(link);
 431 }
 432
 433 void sg_platf_new_cabinet(const simgrid::kernel::routing::CabinetCreationArgs* args)
 434 {
 435   xbt_assert(args, "Invalid nullptr argument");
 436   zone_cluster.cabinets.emplace_back(*args);
 437 }
 438
 439 /*************************************************************************************************/
 440 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
 441 {
 442   current_routing->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
 443                              route->symmetrical);
 444 }
 445
 446 void sg_platf_new_bypass_route(simgrid::kernel::routing::RouteCreationArgs* route)
 447 {
 448   current_routing->add_bypass_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list);
 449 }
 450
 451 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
 452 {
 453   sg_host_t host = sg_host_by_name(actor->host);
 454   if (not host) {
 455     // The requested host does not exist. Do a nice message to the user
 456     std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
 457                       "' does not exist\nExisting hosts: '";
 458
 459     std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
 460
 461     for (auto const& some_host : list) {
 462       msg += some_host->get_name();
 463       msg += "', '";
 464       if (msg.length() > 1024) {
 465         msg.pop_back(); // remove trailing quote
 466         msg += "...(list truncated)......";
 467         break;
 468       }
 469     }
 470     xbt_die("%s", msg.c_str());
 471   }
 472   const simgrid::kernel::actor::ActorCodeFactory& factory =
 473       simgrid::kernel::EngineImpl::get_instance()->get_function(actor->function);
 474   xbt_assert(factory, "Error while creating an actor from the XML file: Function '%s' not registered", actor->function);
 475
 476   double start_time = actor->start_time;
 477   double kill_time  = actor->kill_time;
 478   bool auto_restart = actor->restart_on_failure;
 479
 480   std::string actor_name                 = actor->args[0];
 481   simgrid::kernel::actor::ActorCode code = factory(std::move(actor->args));
 482
 483   auto* arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 484                                                      auto_restart);
 485
 486   host->get_impl()->add_actor_at_boot(arg);
 487
 488   if (start_time > simgrid::s4u::Engine::get_clock()) {
 489     arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 490                                                  auto_restart);
 491
 492     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
 493     simgrid::kernel::timer::Timer::set(start_time, [arg, auto_restart]() {
 494       simgrid::kernel::actor::ActorImplPtr new_actor =
 495           simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), arg->code, arg->data, arg->host, nullptr);
 496       new_actor->set_properties(arg->properties);
 497       if (arg->kill_time >= 0)
 498         new_actor->set_kill_time(arg->kill_time);
 499       if (auto_restart)
 500         new_actor->set_auto_restart(auto_restart);
 501       delete arg;
 502     });
 503   } else { // start_time <= simgrid::s4u::Engine::get_clock()
 504     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
 505
 506     try {
 507       simgrid::kernel::actor::ActorImplPtr new_actor = nullptr;
 508       new_actor = simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), code, nullptr, host, nullptr);
 509       new_actor->set_properties(arg->properties);
 510       /* The actor creation will fail if the host is currently dead, but that's fine */
 511       if (arg->kill_time >= 0)
 512         new_actor->set_kill_time(arg->kill_time);
 513       if (auto_restart)
 514         new_actor->set_auto_restart(auto_restart);
 515     } catch (simgrid::HostFailureException const&) {
 516       XBT_WARN("Deployment includes some initially turned off Hosts ... nevermind.");
 517     }
 518   }
 519 }
 520
 521 /**
 522  * @brief Auxiliary function to build the object NetZoneImpl
 523  *
 524  * Builds the objects, setting its parent properties and root netzone if needed
 525  * @param zone the parameters defining the Zone to build.
 526  * @return Pointer to recently created netzone
 527  */
 528 static simgrid::kernel::routing::NetZoneImpl*
 529 sg_platf_create_zone(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 530 {
 531   /* search the routing model */
 532   const simgrid::s4u::NetZone* new_zone = nullptr;
 533
 534   if (strcasecmp(zone->routing.c_str(), "Cluster") == 0) {
 535     new_zone = simgrid::s4u::create_star_zone(zone->id);
 536   } else if (strcasecmp(zone->routing.c_str(), "Dijkstra") == 0) {
 537     new_zone = simgrid::s4u::create_dijkstra_zone(zone->id, false);
 538   } else if (strcasecmp(zone->routing.c_str(), "DijkstraCache") == 0) {
 539     new_zone = simgrid::s4u::create_dijkstra_zone(zone->id, true);
 540   } else if (strcasecmp(zone->routing.c_str(), "Floyd") == 0) {
 541     new_zone = simgrid::s4u::create_floyd_zone(zone->id);
 542   } else if (strcasecmp(zone->routing.c_str(), "Full") == 0) {
 543     new_zone = simgrid::s4u::create_full_zone(zone->id);
 544   } else if (strcasecmp(zone->routing.c_str(), "None") == 0) {
 545     new_zone = simgrid::s4u::create_empty_zone(zone->id);
 546   } else if (strcasecmp(zone->routing.c_str(), "Vivaldi") == 0) {
 547     new_zone = simgrid::s4u::create_vivaldi_zone(zone->id);
 548   } else if (strcasecmp(zone->routing.c_str(), "Wifi") == 0) {
 549     new_zone = simgrid::s4u::create_wifi_zone(zone->id);
 550   } else {
 551     xbt_die("Not a valid model!");
 552   }
 553
 554   simgrid::kernel::routing::NetZoneImpl* new_zone_impl = new_zone->get_impl();
 555   new_zone_impl->set_parent(current_routing);
 556
 557   return new_zone_impl;
 558 }
 559
 560 /**
 561  * @brief Add a Zone to the platform
 562  *
 563  * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
 564  * and before the corresponding call to sg_platf_new_zone_seal() will be added to this Zone.
 565  *
 566  * Once this function was called, the configuration concerning the used models cannot be changed anymore.
 567  *
 568  * @param zone the parameters defining the Zone to build.
 569  */
 570 simgrid::kernel::routing::NetZoneImpl* sg_platf_new_zone_begin(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 571 {
 572   zone_cluster.routing = zone->routing;
 573   current_routing      = sg_platf_create_zone(zone);
 574
 575   return current_routing;
 576 }
 577
 578 void sg_platf_new_zone_set_properties(const std::unordered_map<std::string, std::string>& props)
 579 {
 580   xbt_assert(current_routing, "Cannot set properties of the current Zone: none under construction");
 581
 582   current_routing->set_properties(props);
 583 }
 584
 585 /**
 586  * @brief Specify that the description of the current Zone is finished
 587  *
 588  * Once you've declared all the content of your Zone, you have to seal
 589  * it with this call. Your Zone is not usable until you call this function.
 590  */
 591 void sg_platf_new_zone_seal()
 592 {
 593   xbt_assert(current_routing, "Cannot seal the current Zone: none under construction");
 594   if (strcasecmp(zone_cluster.routing.c_str(), "Cluster") == 0) {
 595     sg_platf_zone_cluster_populate(&zone_cluster);
 596     zone_cluster.routing = "";
 597     zone_cluster.host_links.clear();
 598     zone_cluster.cabinets.clear();
 599     zone_cluster.backbone.reset();
 600   }
 601   current_routing->seal();
 602   current_routing = current_routing->get_parent();
 603 }
 604
 605 /** @brief Add a link connecting a host to the rest of its Zone (which must be cluster or vivaldi) */
 606 void sg_platf_new_hostlink(const simgrid::kernel::routing::HostLinkCreationArgs* hostlink)
 607 {
 608   xbt_assert(hostlink, "Invalid nullptr parameter");
 609   zone_cluster.host_links.emplace_back(*hostlink);
 610 }
 611
 612 void sg_platf_new_trace(simgrid::kernel::routing::ProfileCreationArgs* args)
 613 {
 614   simgrid::kernel::profile::Profile* profile;
 615   if (not args->file.empty()) {
 616     profile = simgrid::kernel::profile::Profile::from_file(args->file);
 617   } else {
 618     xbt_assert(not args->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
 619                args->id.c_str());
 620     profile = simgrid::kernel::profile::Profile::from_string(args->id, args->pc_data, args->periodicity);
 621   }
 622   traces_set_list.insert({args->id, profile});
 623 }