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 "src/include/simgrid/sg_config.hpp"
  20 #include "src/include/surf/surf.hpp"
  21 #include "src/kernel/EngineImpl.hpp"
  22 #include "src/kernel/resource/DiskImpl.hpp"
  23 #include "src/kernel/resource/profile/Profile.hpp"
  24 #include "src/simix/smx_private.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 /** The current NetZone in the parsing */
  42 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
  43 static simgrid::kernel::routing::NetZoneImpl* routing_get_current()
  44 {
  45   return current_routing;
  46 }
  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 = routing_get_current()
  68                      ->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, std::vector<double>{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 %u", netpoint->get_cname(), netpoint->id());
 114
 115   return netpoint;
 116 }
 117
 118 static void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* args, const std::string& link_name)
 119 {
 120   routing_get_current()
 121       ->create_link(link_name, args->bandwidths)
 122       ->set_properties(args->properties)
 123       ->get_impl() // this call to get_impl saves some simcalls but can be removed
 124       ->set_sharing_policy(args->policy)
 125       ->set_state_profile(args->state_trace)
 126       ->set_latency_profile(args->latency_trace)
 127       ->set_bandwidth_profile(args->bandwidth_trace)
 128       ->set_latency(args->latency)
 129       ->seal();
 130 }
 131
 132 void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* link)
 133 {
 134   if (link->policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 135     sg_platf_new_link(link, link->id + "_UP");
 136     sg_platf_new_link(link, link->id + "_DOWN");
 137   } else {
 138     sg_platf_new_link(link, link->id);
 139   }
 140 }
 141
 142 void sg_platf_new_disk(const simgrid::kernel::routing::DiskCreationArgs* disk)
 143 {
 144   const simgrid::s4u::Disk* new_disk = routing_get_current()
 145                                            ->create_disk(disk->id, disk->read_bw, disk->write_bw)
 146                                            ->set_host(current_host)
 147                                            ->set_properties(disk->properties)
 148                                            ->seal();
 149
 150   current_host->add_disk(new_disk);
 151 }
 152
 153 /*************************************************************************************************/
 154 /** @brief Auxiliary function to create hosts */
 155 static std::pair<simgrid::kernel::routing::NetPoint*, simgrid::kernel::routing::NetPoint*>
 156 sg_platf_cluster_create_host(const simgrid::kernel::routing::ClusterCreationArgs* cluster, simgrid::s4u::NetZone* zone,
 157                              const std::vector<unsigned int>& /*coord*/, int id)
 158 {
 159   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 160              "Zone(%s): error when creating host number %d in the zone. Insufficient number of radicals available "
 161              "(total = %zu). Check the 'radical' parameter in XML",
 162              cluster->id.c_str(), id, cluster->radicals.size());
 163
 164   std::string host_id = std::string(cluster->prefix) + std::to_string(cluster->radicals[id]) + cluster->suffix;
 165   XBT_DEBUG("Cluster: creating host=%s speed=%f", host_id.c_str(), cluster->speeds.front());
 166   const simgrid::s4u::Host* host = zone->create_host(host_id, cluster->speeds)
 167                                        ->set_core_count(cluster->core_amount)
 168                                        ->set_properties(cluster->properties)
 169                                        ->seal();
 170   return std::make_pair(host->get_netpoint(), nullptr);
 171 }
 172
 173 /** @brief Auxiliary function to create loopback links */
 174 static simgrid::s4u::Link*
 175 sg_platf_cluster_create_loopback(const simgrid::kernel::routing::ClusterCreationArgs* cluster,
 176                                  simgrid::s4u::NetZone* zone, const std::vector<unsigned int>& /*coord*/, int id)
 177 {
 178   xbt_assert(static_cast<unsigned long>(id) < cluster->radicals.size(),
 179              "Zone(%s): error when creating loopback for host number %d in the zone. Insufficient number of radicals "
 180              "available "
 181              "(total = %zu). Check the 'radical' parameter in XML",
 182              cluster->id.c_str(), id, cluster->radicals.size());
 183
 184   std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(cluster->radicals[id]) + "_loopback";
 185   XBT_DEBUG("Cluster: creating loopback link=%s bw=%f", link_id.c_str(), cluster->loopback_bw);
 186
 187   simgrid::s4u::Link* loopback = zone->create_link(link_id, cluster->loopback_bw)
 188                                      ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
 189                                      ->set_latency(cluster->loopback_lat)
 190                                      ->seal();
 191   return loopback;
 192 }
 193
 194 /** @brief Auxiliary function to create limiter links */
 195 static simgrid::s4u::Link* sg_platf_cluster_create_limiter(const simgrid::kernel::routing::ClusterCreationArgs* cluster,
 196                                                            simgrid::s4u::NetZone* zone,
 197                                                            const std::vector<unsigned int>& /*coord*/, int 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 = routing_get_current() ? routing_get_current()->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 = routing_get_current() ? routing_get_current()->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   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, std::vector<double>{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       auto* loopback = zone->create_link(loopback_name, std::vector<double>{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                       std::vector<simgrid::s4u::Link*>{loopback});
 302     }
 303
 304     // add a limiter link (shared link to account for maximal bandwidth of the node)
 305     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, std::vector<double>{cluster->limiter_link})->seal();
 311     }
 312
 313     // create link
 314     simgrid::s4u::Link* link_up;
 315     simgrid::s4u::Link* link_down;
 316     if (cluster->sharing_policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
 317       link_up = zone->create_link(link_id + "_UP", std::vector<double>{cluster->bw})->set_latency(cluster->lat)->seal();
 318       link_down =
 319           zone->create_link(link_id + "_DOWN", std::vector<double>{cluster->bw})->set_latency(cluster->lat)->seal();
 320     } else {
 321       link_up   = zone->create_link(link_id, std::vector<double>{cluster->bw})->set_latency(cluster->lat)->seal();
 322       link_down = link_up;
 323     }
 324
 325     /* adding routes */
 326     std::vector<simgrid::s4u::Link*> links_up{limiter, link_up, backbone};
 327     std::vector<simgrid::s4u::Link*> links_down{backbone, link_down, limiter};
 328     links_up.erase(std::remove(links_up.begin(), links_up.end(), nullptr), links_up.end());
 329     links_down.erase(std::remove(links_down.begin(), links_down.end(), nullptr), links_down.end());
 330
 331     zone->add_route(host->get_netpoint(), nullptr, nullptr, nullptr, links_up, false);
 332     zone->add_route(nullptr, host->get_netpoint(), nullptr, nullptr, links_down, false);
 333   }
 334
 335   // Add a router.
 336   XBT_DEBUG(" ");
 337   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
 338   if (cluster->router_id.empty())
 339     cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
 340   auto* router = zone->create_router(cluster->router_id);
 341   zone->add_route(router, nullptr, nullptr, nullptr, {});
 342
 343   zone->seal();
 344   simgrid::kernel::routing::on_cluster_creation(*cluster);
 345 }
 346
 347 void sg_platf_new_tag_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
 348 {
 349   switch (cluster->topology) {
 350     case simgrid::kernel::routing::ClusterTopology::TORUS:
 351     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
 352     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
 353       sg_platf_new_cluster_hierarchical(cluster);
 354       break;
 355     default:
 356       sg_platf_new_cluster_flat(cluster);
 357       break;
 358   }
 359 }
 360 /*************************************************************************************************/
 361 /** @brief Set the links for internal node inside a Cluster(Star) */
 362 static void sg_platf_cluster_set_hostlink(simgrid::kernel::routing::StarZone* zone,
 363                                           simgrid::kernel::routing::NetPoint* netpoint, simgrid::s4u::Link* link_up,
 364                                           simgrid::s4u::Link* link_down, simgrid::kernel::resource::LinkImpl* backbone)
 365 {
 366   XBT_DEBUG("Push Host_link for host '%s' to position %u", netpoint->get_cname(), netpoint->id());
 367   if (backbone) {
 368     zone->add_route(netpoint, nullptr, nullptr, nullptr, {link_up->get_impl(), backbone}, false);
 369     zone->add_route(nullptr, netpoint, nullptr, nullptr, {backbone, link_down->get_impl()}, false);
 370   } else {
 371     zone->add_route(netpoint, nullptr, nullptr, nullptr, {link_up->get_impl()}, false);
 372     zone->add_route(nullptr, netpoint, nullptr, nullptr, {link_down->get_impl()}, false);
 373   }
 374 }
 375
 376 /** @brief Add a link connecting a host to the rest of its StarZone */
 377 static void sg_platf_new_hostlink(simgrid::kernel::routing::StarZone* zone,
 378                                   const simgrid::kernel::routing::HostLinkCreationArgs* hostlink,
 379                                   simgrid::kernel::resource::LinkImpl* backbone)
 380 {
 381   simgrid::kernel::routing::NetPoint* netpoint = simgrid::s4u::Host::by_name(hostlink->id)->get_netpoint();
 382   xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
 383
 384   simgrid::s4u::Link* linkUp   = simgrid::s4u::Link::by_name_or_null(hostlink->link_up);
 385   simgrid::s4u::Link* linkDown = simgrid::s4u::Link::by_name_or_null(hostlink->link_down);
 386
 387   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
 388   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
 389   sg_platf_cluster_set_hostlink(zone, netpoint, linkUp, linkDown, backbone);
 390 }
 391
 392 /** @brief Create a cabinet (set of hosts) inside a Cluster(StarZone) */
 393 static void sg_platf_new_cabinet(simgrid::kernel::routing::StarZone* zone,
 394                                  const simgrid::kernel::routing::CabinetCreationArgs* args,
 395                                  simgrid::kernel::resource::LinkImpl* backbone)
 396 {
 397   for (int const& radical : args->radicals) {
 398     std::string id   = args->prefix + std::to_string(radical) + args->suffix;
 399     auto const* host = zone->create_host(id, std::vector<double>{args->speed})->seal();
 400
 401     auto* link_up =
 402         zone->create_link("link_" + id + "_UP", std::vector<double>{args->bw})->set_latency(args->lat)->seal();
 403     auto* link_down =
 404         zone->create_link("link_" + id + "_DOWN", std::vector<double>{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 void sg_platf_zone_cluster_populate(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   simgrid::kernel::resource::LinkImpl* 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)->get_impl();
 420   }
 421
 422   /* create host_links for hosts */
 423   for (auto const& hostlink : cluster->host_links) {
 424     sg_platf_new_hostlink(zone, &hostlink, backbone);
 425   }
 426
 427   /* create cabinets */
 428   for (auto const& cabinet : cluster->cabinets) {
 429     sg_platf_new_cabinet(zone, &cabinet, backbone);
 430   }
 431 }
 432
 433 /*************************************************************************************************/
 434 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
 435 {
 436   routing_get_current()->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
 437                                    route->symmetrical);
 438 }
 439
 440 void sg_platf_new_bypassRoute(simgrid::kernel::routing::RouteCreationArgs* bypassRoute)
 441 {
 442   routing_get_current()->add_bypass_route(bypassRoute->src, bypassRoute->dst, bypassRoute->gw_src, bypassRoute->gw_dst,
 443                                           bypassRoute->link_list, bypassRoute->symmetrical);
 444 }
 445
 446 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
 447 {
 448   sg_host_t host = sg_host_by_name(actor->host);
 449   if (not host) {
 450     // The requested host does not exist. Do a nice message to the user
 451     std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
 452                       "' does not exist\nExisting hosts: '";
 453
 454     std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
 455
 456     for (auto const& some_host : list) {
 457       msg += some_host->get_name();
 458       msg += "', '";
 459       if (msg.length() > 1024) {
 460         msg.pop_back(); // remove trailing quote
 461         msg += "...(list truncated)......";
 462         break;
 463       }
 464     }
 465     xbt_die("%s", msg.c_str());
 466   }
 467   const simgrid::kernel::actor::ActorCodeFactory& factory =
 468       simgrid::kernel::EngineImpl::get_instance()->get_function(actor->function);
 469   xbt_assert(factory, "Error while creating an actor from the XML file: Function '%s' not registered", actor->function);
 470
 471   double start_time = actor->start_time;
 472   double kill_time  = actor->kill_time;
 473   bool auto_restart = actor->restart_on_failure;
 474
 475   std::string actor_name                 = actor->args[0];
 476   simgrid::kernel::actor::ActorCode code = factory(std::move(actor->args));
 477
 478   auto* arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 479                                                      auto_restart);
 480
 481   host->get_impl()->add_actor_at_boot(arg);
 482
 483   if (start_time > SIMIX_get_clock()) {
 484     arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
 485                                                  auto_restart);
 486
 487     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
 488     simgrid::simix::Timer::set(start_time, [arg, auto_restart]() {
 489       simgrid::kernel::actor::ActorImplPtr new_actor =
 490           simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), arg->code, arg->data, arg->host, nullptr);
 491       new_actor->set_properties(arg->properties);
 492       if (arg->kill_time >= 0)
 493         new_actor->set_kill_time(arg->kill_time);
 494       if (auto_restart)
 495         new_actor->set_auto_restart(auto_restart);
 496       delete arg;
 497     });
 498   } else { // start_time <= SIMIX_get_clock()
 499     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
 500
 501     try {
 502       simgrid::kernel::actor::ActorImplPtr new_actor = nullptr;
 503       new_actor = simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), code, nullptr, host, nullptr);
 504       new_actor->set_properties(arg->properties);
 505       /* The actor creation will fail if the host is currently dead, but that's fine */
 506       if (arg->kill_time >= 0)
 507         new_actor->set_kill_time(arg->kill_time);
 508       if (auto_restart)
 509         new_actor->set_auto_restart(auto_restart);
 510     } catch (simgrid::HostFailureException const&) {
 511       XBT_WARN("Deployment includes some initially turned off Hosts ... nevermind.");
 512     }
 513   }
 514 }
 515
 516 /**
 517  * @brief Auxiliary function to build the object NetZoneImpl
 518  *
 519  * Builds the objects, setting its father properties and root netzone if needed
 520  * @param zone the parameters defining the Zone to build.
 521  * @return Pointer to recently created netzone
 522  */
 523 static simgrid::kernel::routing::NetZoneImpl*
 524 sg_platf_create_zone(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 525 {
 526   /* search the routing model */
 527   simgrid::kernel::routing::NetZoneImpl* new_zone = nullptr;
 528
 529   if (strcasecmp(zone->routing.c_str(), "Cluster") == 0) {
 530     new_zone = new simgrid::kernel::routing::StarZone(zone->id);
 531   } else if (strcasecmp(zone->routing.c_str(), "Dijkstra") == 0) {
 532     new_zone = new simgrid::kernel::routing::DijkstraZone(zone->id, false);
 533   } else if (strcasecmp(zone->routing.c_str(), "DijkstraCache") == 0) {
 534     new_zone = new simgrid::kernel::routing::DijkstraZone(zone->id, true);
 535   } else if (strcasecmp(zone->routing.c_str(), "Floyd") == 0) {
 536     new_zone = new simgrid::kernel::routing::FloydZone(zone->id);
 537   } else if (strcasecmp(zone->routing.c_str(), "Full") == 0) {
 538     new_zone = new simgrid::kernel::routing::FullZone(zone->id);
 539   } else if (strcasecmp(zone->routing.c_str(), "None") == 0) {
 540     new_zone = new simgrid::kernel::routing::EmptyZone(zone->id);
 541   } else if (strcasecmp(zone->routing.c_str(), "Vivaldi") == 0) {
 542     new_zone = new simgrid::kernel::routing::VivaldiZone(zone->id);
 543   } else if (strcasecmp(zone->routing.c_str(), "Wifi") == 0) {
 544     new_zone = new simgrid::kernel::routing::WifiZone(zone->id);
 545   } else {
 546     xbt_die("Not a valid model!");
 547   }
 548   new_zone->set_parent(current_routing);
 549
 550   return new_zone;
 551 }
 552
 553 /**
 554  * @brief Add a Zone to the platform
 555  *
 556  * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
 557  * and before the corresponding call to sg_platf_new_Zone_seal() will be added to this Zone.
 558  *
 559  * Once this function was called, the configuration concerning the used models cannot be changed anymore.
 560  *
 561  * @param zone the parameters defining the Zone to build.
 562  */
 563 simgrid::kernel::routing::NetZoneImpl* sg_platf_new_Zone_begin(const simgrid::kernel::routing::ZoneCreationArgs* zone)
 564 {
 565   current_routing = sg_platf_create_zone(zone);
 566
 567   return current_routing;
 568 }
 569
 570 void sg_platf_new_Zone_set_properties(const std::unordered_map<std::string, std::string>& props)
 571 {
 572   xbt_assert(current_routing, "Cannot set properties of the current Zone: none under construction");
 573
 574   current_routing->set_properties(props);
 575 }
 576
 577 /**
 578  * @brief Specify that the description of the current Zone is finished
 579  *
 580  * Once you've declared all the content of your Zone, you have to seal
 581  * it with this call. Your Zone is not usable until you call this function.
 582  */
 583 void sg_platf_new_Zone_seal()
 584 {
 585   xbt_assert(current_routing, "Cannot seal the current Zone: none under construction");
 586   current_routing->seal();
 587   current_routing = current_routing->get_parent();
 588 }
 589
 590 void sg_platf_new_trace(simgrid::kernel::routing::ProfileCreationArgs* args)
 591 {
 592   simgrid::kernel::profile::Profile* profile;
 593   if (not args->file.empty()) {
 594     profile = simgrid::kernel::profile::Profile::from_file(args->file);
 595   } else {
 596     xbt_assert(not args->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
 597                args->id.c_str());
 598     profile = simgrid::kernel::profile::Profile::from_string(args->id, args->pc_data, args->periodicity);
 599   }
 600   traces_set_list.insert({args->id, profile});
 601 }