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fix typos in warning
[simgrid.git] / src / surf / sg_platf.cpp
1 /* Copyright (c) 2006-2019. The SimGrid Team. All rights reserved.          */
2
3 /* This program is free software; you can redistribute it and/or modify it
4  * under the terms of the license (GNU LGPL) which comes with this package. */
5
6 #include "simgrid/Exception.hpp"
7 #include "simgrid/kernel/routing/ClusterZone.hpp"
8 #include "simgrid/kernel/routing/DijkstraZone.hpp"
9 #include "simgrid/kernel/routing/DragonflyZone.hpp"
10 #include "simgrid/kernel/routing/EmptyZone.hpp"
11 #include "simgrid/kernel/routing/FatTreeZone.hpp"
12 #include "simgrid/kernel/routing/FloydZone.hpp"
13 #include "simgrid/kernel/routing/FullZone.hpp"
14 #include "simgrid/kernel/routing/NetPoint.hpp"
15 #include "simgrid/kernel/routing/NetZoneImpl.hpp"
16 #include "simgrid/kernel/routing/TorusZone.hpp"
17 #include "simgrid/kernel/routing/VivaldiZone.hpp"
18 #include "simgrid/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/simix/smx_host_private.hpp"
23 #include "src/simix/smx_private.hpp"
24 #include "src/surf/HostImpl.hpp"
25 #include "src/surf/xml/platf_private.hpp"
26
27 #include <string>
28
29 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
30
31 XBT_PRIVATE std::map<std::string, simgrid::surf::StorageImpl*> mount_list;
32 XBT_PRIVATE std::vector<std::string> known_storages;
33
34 namespace simgrid {
35 namespace surf {
36
37 simgrid::xbt::signal<void(kernel::routing::ClusterCreationArgs*)> on_cluster;
38 }
39 }
40
41 static int surf_parse_models_setup_already_called = 0;
42 std::map<std::string, simgrid::surf::StorageType*> storage_types;
43
44 /** The current AS in the parsing */
45 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
46 static simgrid::kernel::routing::NetZoneImpl* routing_get_current()
47 {
48   return current_routing;
49 }
50
51 /** Module management function: creates all internal data structures */
52 void sg_platf_init()
53 {
54   simgrid::s4u::on_platform_created.connect(check_disk_attachment);
55 }
56
57 /** Module management function: frees all internal data structures */
58 void sg_platf_exit() {
59   simgrid::surf::on_cluster.disconnect_slots();
60   simgrid::s4u::on_platform_created.disconnect_slots();
61
62   /* make sure that we will reinit the models while loading the platf once reinited */
63   surf_parse_models_setup_already_called = 0;
64   surf_parse_lex_destroy();
65 }
66
67 /** @brief Add a host to the current AS */
68 void sg_platf_new_host(simgrid::kernel::routing::HostCreationArgs* args)
69 {
70   std::map<std::string, std::string> props;
71   if (args->properties) {
72     for (auto const& elm : *args->properties)
73       props.insert({elm.first, elm.second});
74     delete args->properties;
75   }
76
77   simgrid::s4u::Host* host =
78       routing_get_current()->create_host(args->id, &args->speed_per_pstate, args->core_amount, &props);
79
80   host->pimpl_->storage_ = mount_list;
81   mount_list.clear();
82
83   /* Change from the defaults */
84   if (args->state_trace)
85     host->pimpl_cpu->set_state_profile(args->state_trace);
86   if (args->speed_trace)
87     host->pimpl_cpu->set_speed_profile(args->speed_trace);
88   if (args->pstate != 0)
89     host->pimpl_cpu->set_pstate(args->pstate);
90   if (args->coord && strcmp(args->coord, ""))
91     new simgrid::kernel::routing::vivaldi::Coords(host->pimpl_netpoint, args->coord);
92 }
93
94 /** @brief Add a "router" to the network element list */
95 simgrid::kernel::routing::NetPoint* sg_platf_new_router(std::string name, const char* coords)
96 {
97   simgrid::kernel::routing::NetZoneImpl* current_routing = routing_get_current();
98
99   if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
100     current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::base;
101   xbt_assert(nullptr == simgrid::s4u::Engine::get_instance()->netpoint_by_name_or_null(name),
102              "Refusing to create a router named '%s': this name already describes a node.", name.c_str());
103
104   simgrid::kernel::routing::NetPoint* netpoint = new simgrid::kernel::routing::NetPoint(
105       std::move(name), simgrid::kernel::routing::NetPoint::Type::Router, current_routing);
106   XBT_DEBUG("Router '%s' has the id %u", netpoint->get_cname(), netpoint->id());
107
108   if (coords && strcmp(coords, ""))
109     new simgrid::kernel::routing::vivaldi::Coords(netpoint, coords);
110
111
112   return netpoint;
113 }
114
115 static void sg_platf_new_link(simgrid::kernel::routing::LinkCreationArgs* link, const std::string& link_name)
116 {
117   simgrid::kernel::resource::LinkImpl* l =
118       surf_network_model->create_link(link_name, link->bandwidth, link->latency, link->policy);
119
120   if (link->properties) {
121     for (auto const& elm : *link->properties)
122       l->set_property(elm.first, elm.second);
123   }
124
125   if (link->latency_trace)
126     l->set_latency_profile(link->latency_trace);
127   if (link->bandwidth_trace)
128     l->set_bandwidth_profile(link->bandwidth_trace);
129   if (link->state_trace)
130     l->set_state_profile(link->state_trace);
131 }
132
133 void sg_platf_new_link(simgrid::kernel::routing::LinkCreationArgs* link)
134 {
135   if (link->policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
136     sg_platf_new_link(link, link->id + "_UP");
137     sg_platf_new_link(link, link->id + "_DOWN");
138   } else {
139     sg_platf_new_link(link, link->id);
140   }
141   delete link->properties;
142 }
143
144 void sg_platf_new_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
145 {
146   using simgrid::kernel::routing::ClusterZone;
147   using simgrid::kernel::routing::DragonflyZone;
148   using simgrid::kernel::routing::FatTreeZone;
149   using simgrid::kernel::routing::TorusZone;
150
151   int rankId=0;
152
153   // What an inventive way of initializing the AS that I have as ancestor :-(
154   simgrid::kernel::routing::ZoneCreationArgs zone;
155   zone.id = cluster->id;
156   switch (cluster->topology) {
157     case simgrid::kernel::routing::ClusterTopology::TORUS:
158       zone.routing = A_surfxml_AS_routing_ClusterTorus;
159       break;
160     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
161       zone.routing = A_surfxml_AS_routing_ClusterDragonfly;
162       break;
163     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
164       zone.routing = A_surfxml_AS_routing_ClusterFatTree;
165       break;
166     default:
167       zone.routing = A_surfxml_AS_routing_Cluster;
168       break;
169   }
170   sg_platf_new_Zone_begin(&zone);
171   simgrid::kernel::routing::ClusterZone* current_as = static_cast<ClusterZone*>(routing_get_current());
172   current_as->parse_specific_arguments(cluster);
173
174   if(cluster->loopback_bw > 0 || cluster->loopback_lat > 0){
175     current_as->num_links_per_node_++;
176     current_as->has_loopback_ = true;
177   }
178
179   if(cluster->limiter_link > 0){
180     current_as->num_links_per_node_++;
181     current_as->has_limiter_ = true;
182   }
183
184   for (int const& i : *cluster->radicals) {
185     std::string host_id = std::string(cluster->prefix) + std::to_string(i) + cluster->suffix;
186     std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(i);
187
188     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id.c_str(), cluster->speeds.front());
189
190     simgrid::kernel::routing::HostCreationArgs host;
191     host.id = host_id.c_str();
192     if ((cluster->properties != nullptr) && (not cluster->properties->empty())) {
193       host.properties = new std::unordered_map<std::string, std::string>;
194
195       for (auto const& elm : *cluster->properties)
196         host.properties->insert({elm.first, elm.second});
197     }
198
199     host.speed_per_pstate = cluster->speeds;
200     host.pstate = 0;
201     host.core_amount = cluster->core_amount;
202     host.coord = "";
203     sg_platf_new_host(&host);
204     XBT_DEBUG("</host>");
205
206     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id.c_str(), cluster->bw, cluster->lat);
207
208     // All links are saved in a matrix;
209     // every row describes a single node; every node may have multiple links.
210     // the first column may store a link from x to x if p_has_loopback is set
211     // the second column may store a limiter link if p_has_limiter is set
212     // other columns are to store one or more link for the node
213
214     //add a loopback link
215     simgrid::s4u::Link* linkUp   = nullptr;
216     simgrid::s4u::Link* linkDown = nullptr;
217     if(cluster->loopback_bw > 0 || cluster->loopback_lat > 0){
218       std::string tmp_link = link_id + "_loopback";
219       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link.c_str(), cluster->loopback_bw);
220
221       simgrid::kernel::routing::LinkCreationArgs link;
222       link.id        = tmp_link;
223       link.bandwidth = cluster->loopback_bw;
224       link.latency   = cluster->loopback_lat;
225       link.policy    = simgrid::s4u::Link::SharingPolicy::FATPIPE;
226       sg_platf_new_link(&link);
227       linkUp   = simgrid::s4u::Link::by_name_or_null(tmp_link);
228       linkDown = simgrid::s4u::Link::by_name_or_null(tmp_link);
229
230       auto* as_cluster = static_cast<ClusterZone*>(current_as);
231       as_cluster->private_links_.insert({as_cluster->node_pos(rankId), {linkUp->get_impl(), linkDown->get_impl()}});
232     }
233
234     //add a limiter link (shared link to account for maximal bandwidth of the node)
235     linkUp   = nullptr;
236     linkDown = nullptr;
237     if(cluster->limiter_link > 0){
238       std::string tmp_link = std::string(link_id) + "_limiter";
239       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link.c_str(), cluster->limiter_link);
240
241       simgrid::kernel::routing::LinkCreationArgs link;
242       link.id        = tmp_link;
243       link.bandwidth = cluster->limiter_link;
244       link.latency = 0;
245       link.policy    = simgrid::s4u::Link::SharingPolicy::SHARED;
246       sg_platf_new_link(&link);
247       linkDown = simgrid::s4u::Link::by_name_or_null(tmp_link);
248       linkUp   = linkDown;
249       current_as->private_links_.insert(
250           {current_as->node_pos_with_loopback(rankId), {linkUp->get_impl(), linkDown->get_impl()}});
251     }
252
253     //call the cluster function that adds the others links
254     if (cluster->topology == simgrid::kernel::routing::ClusterTopology::FAT_TREE) {
255       static_cast<FatTreeZone*>(current_as)->add_processing_node(i);
256     } else {
257       current_as->create_links_for_node(cluster, i, rankId, current_as->node_pos_with_loopback_limiter(rankId));
258     }
259     rankId++;
260   }
261   delete cluster->properties;
262
263   // Add a router.
264   XBT_DEBUG(" ");
265   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
266   if (cluster->router_id.empty()) {
267     std::string newid   = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
268     current_as->router_ = sg_platf_new_router(newid, NULL);
269   } else {
270     current_as->router_ = sg_platf_new_router(cluster->router_id, NULL);
271   }
272
273   //Make the backbone
274   if ((cluster->bb_bw > 0) || (cluster->bb_lat > 0)) {
275
276     simgrid::kernel::routing::LinkCreationArgs link;
277     link.id        = std::string(cluster->id)+ "_backbone";
278     link.bandwidth = cluster->bb_bw;
279     link.latency   = cluster->bb_lat;
280     link.policy    = cluster->bb_sharing_policy;
281
282     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id.c_str(), cluster->bb_bw, cluster->bb_lat);
283     sg_platf_new_link(&link);
284
285     routing_cluster_add_backbone(simgrid::s4u::Link::by_name(link.id)->get_impl());
286   }
287
288   XBT_DEBUG("</AS>");
289   sg_platf_new_Zone_seal();
290
291   simgrid::surf::on_cluster(cluster);
292   delete cluster->radicals;
293 }
294
295 void routing_cluster_add_backbone(simgrid::kernel::resource::LinkImpl* bb)
296 {
297   simgrid::kernel::routing::ClusterZone* cluster =
298       dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
299
300   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
301   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->get_cname());
302
303   cluster->backbone_ = bb;
304   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->get_cname());
305 }
306
307 void sg_platf_new_cabinet(simgrid::kernel::routing::CabinetCreationArgs* cabinet)
308 {
309   for (int const& radical : *cabinet->radicals) {
310     std::string hostname = cabinet->prefix + std::to_string(radical) + cabinet->suffix;
311     simgrid::kernel::routing::HostCreationArgs host;
312     host.pstate           = 0;
313     host.core_amount      = 1;
314     host.id               = hostname.c_str();
315     host.speed_per_pstate.push_back(cabinet->speed);
316     sg_platf_new_host(&host);
317
318     simgrid::kernel::routing::LinkCreationArgs link;
319     link.policy    = simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX;
320     link.latency   = cabinet->lat;
321     link.bandwidth = cabinet->bw;
322     link.id        = "link_" + hostname;
323     sg_platf_new_link(&link);
324
325     simgrid::kernel::routing::HostLinkCreationArgs host_link;
326     host_link.id        = hostname;
327     host_link.link_up   = std::string("link_") + hostname + "_UP";
328     host_link.link_down = std::string("link_") + hostname + "_DOWN";
329     sg_platf_new_hostlink(&host_link);
330   }
331   delete cabinet->radicals;
332 }
333
334 void sg_platf_new_storage(simgrid::kernel::routing::StorageCreationArgs* storage)
335 {
336   xbt_assert(std::find(known_storages.begin(), known_storages.end(), storage->id) == known_storages.end(),
337              "Refusing to add a second storage named \"%s\"", storage->id.c_str());
338
339   simgrid::surf::StorageType* stype;
340   auto st = storage_types.find(storage->type_id);
341   if (st != storage_types.end()) {
342     stype = st->second;
343   } else {
344     xbt_die("No storage type '%s'", storage->type_id.c_str());
345   }
346
347   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'", storage->id.c_str(),
348             storage->type_id.c_str(), storage->content.c_str());
349
350   known_storages.push_back(storage->id);
351
352   // if storage content is not specified use the content of storage_type if any
353   if (storage->content.empty() && not stype->content.empty()) {
354     storage->content = stype->content;
355     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s)", storage->id.c_str(),
356               stype->id.c_str());
357   }
358
359   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
360             "\n\t\tmodel '%s' \n\t\tcontent '%s' "
361             "\n\t\tproperties '%p''\n",
362             storage->id.c_str(), stype->model.c_str(), stype->id.c_str(), storage->content.c_str(),
363             storage->properties);
364
365   auto s = surf_storage_model->createStorage(storage->id, stype->id, storage->content, storage->attach);
366
367   if (storage->properties) {
368     for (auto const& elm : *storage->properties)
369       s->set_property(elm.first, elm.second);
370     delete storage->properties;
371   }
372 }
373
374 void sg_platf_new_storage_type(simgrid::kernel::routing::StorageTypeCreationArgs* storage_type)
375 {
376   xbt_assert(storage_types.find(storage_type->id) == storage_types.end(),
377              "Reading a storage type, processing unit \"%s\" already exists", storage_type->id.c_str());
378
379   simgrid::surf::StorageType* stype =
380       new simgrid::surf::StorageType(storage_type->id, storage_type->model, storage_type->content,
381                                      storage_type->properties, storage_type->model_properties, storage_type->size);
382
383   XBT_DEBUG("Create a storage type id '%s' with model '%s', content '%s'", storage_type->id.c_str(),
384             storage_type->model.c_str(), storage_type->content.c_str());
385
386   storage_types[storage_type->id] = stype;
387 }
388
389 void sg_platf_new_mount(simgrid::kernel::routing::MountCreationArgs* mount)
390 {
391   xbt_assert(std::find(known_storages.begin(), known_storages.end(), mount->storageId) != known_storages.end(),
392              "Cannot mount non-existent disk \"%s\"", mount->storageId.c_str());
393
394   XBT_DEBUG("Mount '%s' on '%s'", mount->storageId.c_str(), mount->name.c_str());
395
396   if (mount_list.empty())
397     XBT_DEBUG("Create a Mount list for %s", A_surfxml_host_id);
398   mount_list.insert({mount->name, simgrid::s4u::Engine::get_instance()->storage_by_name(mount->storageId)->get_impl()});
399 }
400
401 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
402 {
403   routing_get_current()->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
404                                    route->symmetrical);
405 }
406
407 void sg_platf_new_bypassRoute(simgrid::kernel::routing::RouteCreationArgs* bypassRoute)
408 {
409   routing_get_current()->add_bypass_route(bypassRoute->src, bypassRoute->dst, bypassRoute->gw_src, bypassRoute->gw_dst,
410                                           bypassRoute->link_list, bypassRoute->symmetrical);
411 }
412
413 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
414 {
415   sg_host_t host = sg_host_by_name(actor->host);
416   if (not host) {
417     // The requested host does not exist. Do a nice message to the user
418     std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
419                       "' does not exist\nExisting hosts: '";
420
421     std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
422
423     for (auto const& host : list) {
424       msg += host->get_name();
425       msg += "', '";
426       if (msg.length() > 1024) {
427         msg.pop_back(); // remove trailing quote
428         msg += "...(list truncated)......";
429         break;
430       }
431     }
432     xbt_die("%s", msg.c_str());
433   }
434   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(actor->function);
435   xbt_assert(factory, "Error while creating an actor from the XML file: Function '%s' not registered", actor->function);
436
437   double start_time = actor->start_time;
438   double kill_time  = actor->kill_time;
439   bool auto_restart = actor->on_failure != simgrid::kernel::routing::ActorOnFailure::DIE;
440
441   std::string actor_name     = actor->args[0];
442   simgrid::simix::ActorCode code = factory(std::move(actor->args));
443   std::shared_ptr<std::unordered_map<std::string, std::string>> properties(actor->properties);
444
445   simgrid::kernel::actor::ProcessArg* arg =
446       new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, properties, auto_restart);
447
448   host->pimpl_->actors_at_boot_.emplace_back(arg);
449
450   if (start_time > SIMIX_get_clock()) {
451
452     arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, properties, auto_restart);
453
454     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
455     simgrid::simix::Timer::set(start_time, [arg, auto_restart]() {
456       simgrid::kernel::actor::ActorImplPtr actor = simgrid::kernel::actor::ActorImpl::create(
457           arg->name.c_str(), std::move(arg->code), arg->data, arg->host, arg->properties.get(), nullptr);
458       if (arg->kill_time >= 0)
459         actor->set_kill_time(arg->kill_time);
460       if (auto_restart)
461         actor->set_auto_restart(auto_restart);
462       delete arg;
463     });
464   } else {                      // start_time <= SIMIX_get_clock()
465     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
466
467     simgrid::kernel::actor::ActorImplPtr actor = nullptr;
468     try {
469       actor = simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), std::move(code), nullptr, host,
470                                                         arg->properties.get(), nullptr);
471     } catch (simgrid::HostFailureException const&) {
472       XBT_WARN("Deployment includes some initially turned off Hosts ... nevermind.");
473     }
474     /* The actor creation will fail if the host is currently dead, but that's fine */
475     if (actor != nullptr) {
476       if (arg->kill_time >= 0)
477         actor->set_kill_time(arg->kill_time);
478       if (auto_restart)
479         actor->set_auto_restart(auto_restart);
480     }
481   }
482 }
483
484 void sg_platf_new_peer(simgrid::kernel::routing::PeerCreationArgs* peer)
485 {
486   simgrid::kernel::routing::VivaldiZone* as = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
487   xbt_assert(as, "<peer> tag can only be used in Vivaldi netzones.");
488
489   std::vector<double> speedPerPstate;
490   speedPerPstate.push_back(peer->speed);
491   simgrid::s4u::Host* host = as->create_host(peer->id.c_str(), &speedPerPstate, 1, nullptr);
492
493   as->set_peer_link(host->pimpl_netpoint, peer->bw_in, peer->bw_out, peer->coord);
494
495   /* Change from the defaults */
496   if (peer->state_trace)
497     host->pimpl_cpu->set_state_profile(peer->state_trace);
498   if (peer->speed_trace)
499     host->pimpl_cpu->set_speed_profile(peer->speed_trace);
500 }
501
502 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
503 static void surf_config_models_setup()
504 {
505   std::string host_model_name    = simgrid::config::get_value<std::string>("host/model");
506   std::string network_model_name = simgrid::config::get_value<std::string>("network/model");
507   std::string cpu_model_name     = simgrid::config::get_value<std::string>("cpu/model");
508   std::string storage_model_name = simgrid::config::get_value<std::string>("storage/model");
509
510   /* The compound host model is needed when using non-default net/cpu models */
511   if ((not simgrid::config::is_default("network/model") || not simgrid::config::is_default("cpu/model")) &&
512       simgrid::config::is_default("host/model")) {
513     host_model_name = "compound";
514     simgrid::config::set_value("host/model", host_model_name);
515   }
516
517   XBT_DEBUG("host model: %s", host_model_name.c_str());
518   if (host_model_name == "compound") {
519     xbt_assert(not cpu_model_name.empty(), "Set a cpu model to use with the 'compound' host model");
520     xbt_assert(not network_model_name.empty(), "Set a network model to use with the 'compound' host model");
521
522     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
523     surf_cpu_model_description[cpu_id].model_init_preparse();
524
525     int network_id = find_model_description(surf_network_model_description, network_model_name);
526     surf_network_model_description[network_id].model_init_preparse();
527   }
528
529   XBT_DEBUG("Call host_model_init");
530   int host_id = find_model_description(surf_host_model_description, host_model_name);
531   surf_host_model_description[host_id].model_init_preparse();
532
533   XBT_DEBUG("Call vm_model_init");
534   surf_vm_model_init_HL13();
535
536   XBT_DEBUG("Call storage_model_init");
537   int storage_id = find_model_description(surf_storage_model_description, storage_model_name);
538   surf_storage_model_description[storage_id].model_init_preparse();
539 }
540
541 /**
542  * @brief Add a Zone to the platform
543  *
544  * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
545  * and before the corresponding call to sg_platf_new_Zone_seal() will be added to this Zone.
546  *
547  * Once this function was called, the configuration concerning the used models cannot be changed anymore.
548  *
549  * @param zone the parameters defining the Zone to build.
550  */
551 simgrid::kernel::routing::NetZoneImpl* sg_platf_new_Zone_begin(simgrid::kernel::routing::ZoneCreationArgs* zone)
552 {
553   if (not surf_parse_models_setup_already_called) {
554     simgrid::s4u::on_platform_creation();
555
556     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
557      * That is, after the last <config> tag, if any, and before the first of cluster|peer|zone|trace|trace_connect
558      *
559      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
560      * (FIXME: check it out by creating a file beginning with one of these tags)
561      * but cluster and peer come down to zone creations, so putting this verification here is correct.
562      */
563     surf_parse_models_setup_already_called = 1;
564     surf_config_models_setup();
565   }
566
567   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
568                             * any further config now that we created some real content */
569
570   /* search the routing model */
571   simgrid::kernel::routing::NetZoneImpl* new_zone = nullptr;
572   simgrid::kernel::resource::NetworkModel* netmodel =
573       current_routing == nullptr ? surf_network_model : current_routing->network_model_;
574   switch (zone->routing) {
575     case A_surfxml_AS_routing_Cluster:
576       new_zone = new simgrid::kernel::routing::ClusterZone(current_routing, zone->id, netmodel);
577       break;
578     case A_surfxml_AS_routing_ClusterDragonfly:
579       new_zone = new simgrid::kernel::routing::DragonflyZone(current_routing, zone->id, netmodel);
580       break;
581     case A_surfxml_AS_routing_ClusterTorus:
582       new_zone = new simgrid::kernel::routing::TorusZone(current_routing, zone->id, netmodel);
583       break;
584     case A_surfxml_AS_routing_ClusterFatTree:
585       new_zone = new simgrid::kernel::routing::FatTreeZone(current_routing, zone->id, netmodel);
586       break;
587     case A_surfxml_AS_routing_Dijkstra:
588       new_zone = new simgrid::kernel::routing::DijkstraZone(current_routing, zone->id, netmodel, false);
589       break;
590     case A_surfxml_AS_routing_DijkstraCache:
591       new_zone = new simgrid::kernel::routing::DijkstraZone(current_routing, zone->id, netmodel, true);
592       break;
593     case A_surfxml_AS_routing_Floyd:
594       new_zone = new simgrid::kernel::routing::FloydZone(current_routing, zone->id, netmodel);
595       break;
596     case A_surfxml_AS_routing_Full:
597       new_zone = new simgrid::kernel::routing::FullZone(current_routing, zone->id, netmodel);
598       break;
599     case A_surfxml_AS_routing_None:
600       new_zone = new simgrid::kernel::routing::EmptyZone(current_routing, zone->id, netmodel);
601       break;
602     case A_surfxml_AS_routing_Vivaldi:
603       new_zone = new simgrid::kernel::routing::VivaldiZone(current_routing, zone->id, netmodel);
604       break;
605     default:
606       xbt_die("Not a valid model!");
607       break;
608   }
609
610   if (current_routing == nullptr) { /* it is the first one */
611     simgrid::s4u::Engine::get_instance()->set_netzone_root(new_zone->get_iface());
612   } else {
613     /* set the father behavior */
614     if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
615       current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::recursive;
616     /* add to the sons dictionary */
617     current_routing->get_children()->push_back(new_zone);
618   }
619
620   /* set the new current component of the tree */
621   current_routing = new_zone;
622   simgrid::s4u::NetZone::on_creation(*new_zone->get_iface()); // notify the signal
623
624   return new_zone;
625 }
626
627 /**
628  * @brief Specify that the description of the current AS is finished
629  *
630  * Once you've declared all the content of your AS, you have to seal
631  * it with this call. Your AS is not usable until you call this function.
632  */
633 void sg_platf_new_Zone_seal()
634 {
635   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
636   current_routing->seal();
637   simgrid::s4u::NetZone::on_seal(*current_routing->get_iface());
638   current_routing = static_cast<simgrid::kernel::routing::NetZoneImpl*>(current_routing->get_father());
639 }
640
641 /** @brief Add a link connecting a host to the rest of its AS (which must be cluster or vivaldi) */
642 void sg_platf_new_hostlink(simgrid::kernel::routing::HostLinkCreationArgs* hostlink)
643 {
644   simgrid::kernel::routing::NetPoint* netpoint = sg_host_by_name(hostlink->id.c_str())->pimpl_netpoint;
645   xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
646   xbt_assert(dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing),
647              "Only hosts from Cluster and Vivaldi ASes can get a host_link.");
648
649   simgrid::s4u::Link* linkUp   = simgrid::s4u::Link::by_name_or_null(hostlink->link_up);
650   simgrid::s4u::Link* linkDown = simgrid::s4u::Link::by_name_or_null(hostlink->link_down);
651
652   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
653   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
654
655   auto* as_cluster = static_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
656
657   if (as_cluster->private_links_.find(netpoint->id()) != as_cluster->private_links_.end())
658     surf_parse_error(std::string("Host_link for '") + hostlink->id.c_str() + "' is already defined!");
659
660   XBT_DEBUG("Push Host_link for host '%s' to position %u", netpoint->get_cname(), netpoint->id());
661   as_cluster->private_links_.insert({netpoint->id(), {linkUp->get_impl(), linkDown->get_impl()}});
662 }
663
664 void sg_platf_new_trace(simgrid::kernel::routing::ProfileCreationArgs* profile)
665 {
666   simgrid::kernel::profile::Profile* mgr_profile;
667   if (not profile->file.empty()) {
668     mgr_profile = simgrid::kernel::profile::Profile::from_file(profile->file);
669   } else {
670     xbt_assert(not profile->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
671                profile->id.c_str());
672     mgr_profile = simgrid::kernel::profile::Profile::from_string(profile->id, profile->pc_data, profile->periodicity);
673   }
674   traces_set_list.insert({profile->id, mgr_profile});
675 }