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further snake_case NetZone
[simgrid.git] / src / surf / sg_platf.cpp
1 /* Copyright (c) 2006-2018. 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/kernel/routing/ClusterZone.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/s4u/Engine.hpp"
18 #include "src/include/simgrid/sg_config.hpp"
19 #include "src/kernel/EngineImpl.hpp"
20 #include "src/simix/smx_host_private.hpp"
21 #include "src/simix/smx_private.hpp"
22 #include "src/surf/HostImpl.hpp"
23 #include "src/surf/xml/platf_private.hpp"
24
25 #include <string>
26
27 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
28
29 XBT_PRIVATE std::map<std::string, simgrid::surf::StorageImpl*> mount_list;
30 XBT_PRIVATE std::vector<std::string> known_storages;
31
32 namespace simgrid {
33 namespace surf {
34
35 simgrid::xbt::signal<void(kernel::routing::ClusterCreationArgs*)> on_cluster;
36 }
37 }
38
39 static int surf_parse_models_setup_already_called = 0;
40 std::map<std::string, simgrid::surf::StorageType*> storage_types;
41
42 /** The current AS in the parsing */
43 static simgrid::kernel::routing::NetZoneImpl* current_routing = nullptr;
44 static simgrid::kernel::routing::NetZoneImpl* routing_get_current()
45 {
46   return current_routing;
47 }
48
49 /** Module management function: creates all internal data structures */
50 void sg_platf_init()
51 {
52   simgrid::s4u::on_platform_created.connect(check_disk_attachment);
53 }
54
55 /** Module management function: frees all internal data structures */
56 void sg_platf_exit() {
57   simgrid::surf::on_cluster.disconnectSlots();
58   simgrid::s4u::on_platform_created.disconnectSlots();
59
60   /* make sure that we will reinit the models while loading the platf once reinited */
61   surf_parse_models_setup_already_called = 0;
62   surf_parse_lex_destroy();
63 }
64
65 /** @brief Add an host to the current AS */
66 void sg_platf_new_host(simgrid::kernel::routing::HostCreationArgs* args)
67 {
68   std::map<std::string, std::string> props;
69   if (args->properties) {
70     for (auto const& elm : *args->properties)
71       props.insert({elm.first, elm.second});
72     delete args->properties;
73   }
74
75   simgrid::s4u::Host* host =
76       routing_get_current()->create_host(args->id, &args->speed_per_pstate, args->core_amount, &props);
77
78   host->pimpl_->storage_ = mount_list;
79   mount_list.clear();
80
81   /* Change from the defaults */
82   if (args->state_trace)
83     host->pimpl_cpu->set_state_trace(args->state_trace);
84   if (args->speed_trace)
85     host->pimpl_cpu->set_speed_trace(args->speed_trace);
86   if (args->pstate != 0)
87     host->pimpl_cpu->set_pstate(args->pstate);
88   if (args->coord && strcmp(args->coord, ""))
89     new simgrid::kernel::routing::vivaldi::Coords(host->pimpl_netpoint, args->coord);
90 }
91
92 /** @brief Add a "router" to the network element list */
93 simgrid::kernel::routing::NetPoint* sg_platf_new_router(std::string name, const char* coords)
94 {
95   simgrid::kernel::routing::NetZoneImpl* current_routing = routing_get_current();
96
97   if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
98     current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::base;
99   xbt_assert(nullptr == simgrid::s4u::Engine::get_instance()->netpoint_by_name_or_null(name),
100              "Refusing to create a router named '%s': this name already describes a node.", name.c_str());
101
102   simgrid::kernel::routing::NetPoint* netpoint =
103       new simgrid::kernel::routing::NetPoint(name, simgrid::kernel::routing::NetPoint::Type::Router, current_routing);
104   XBT_DEBUG("Router '%s' has the id %u", name.c_str(), netpoint->id());
105
106   if (coords && strcmp(coords, ""))
107     new simgrid::kernel::routing::vivaldi::Coords(netpoint, coords);
108
109
110   return netpoint;
111 }
112
113 void sg_platf_new_link(simgrid::kernel::routing::LinkCreationArgs* link)
114 {
115   std::vector<std::string> names;
116
117   if (link->policy == simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX) {
118     names.push_back(link->id+ "_UP");
119     names.push_back(link->id+ "_DOWN");
120   } else {
121     names.push_back(link->id);
122   }
123   for (auto const& link_name : names) {
124     simgrid::kernel::resource::LinkImpl* l =
125         surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy);
126
127     if (link->properties) {
128       for (auto const& elm : *link->properties)
129         l->set_property(elm.first, elm.second);
130     }
131
132     if (link->latency_trace)
133       l->set_latency_trace(link->latency_trace);
134     if (link->bandwidth_trace)
135       l->set_bandwidth_trace(link->bandwidth_trace);
136     if (link->state_trace)
137       l->set_state_trace(link->state_trace);
138   }
139   delete link->properties;
140 }
141
142 void sg_platf_new_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
143 {
144   using simgrid::kernel::routing::ClusterZone;
145   using simgrid::kernel::routing::DragonflyZone;
146   using simgrid::kernel::routing::FatTreeZone;
147   using simgrid::kernel::routing::TorusZone;
148
149   int rankId=0;
150
151   // What an inventive way of initializing the AS that I have as ancestor :-(
152   simgrid::kernel::routing::ZoneCreationArgs zone;
153   zone.id = cluster->id;
154   switch (cluster->topology) {
155     case simgrid::kernel::routing::ClusterTopology::TORUS:
156       zone.routing = A_surfxml_AS_routing_ClusterTorus;
157       break;
158     case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
159       zone.routing = A_surfxml_AS_routing_ClusterDragonfly;
160       break;
161     case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
162       zone.routing = A_surfxml_AS_routing_ClusterFatTree;
163       break;
164     default:
165       zone.routing = A_surfxml_AS_routing_Cluster;
166       break;
167   }
168   sg_platf_new_Zone_begin(&zone);
169   simgrid::kernel::routing::ClusterZone* current_as = static_cast<ClusterZone*>(routing_get_current());
170   current_as->parse_specific_arguments(cluster);
171
172   if(cluster->loopback_bw > 0 || cluster->loopback_lat > 0){
173     current_as->num_links_per_node_++;
174     current_as->has_loopback_ = true;
175   }
176
177   if(cluster->limiter_link > 0){
178     current_as->num_links_per_node_++;
179     current_as->has_limiter_ = true;
180   }
181
182   for (int const& i : *cluster->radicals) {
183     std::string host_id = std::string(cluster->prefix) + std::to_string(i) + cluster->suffix;
184     std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(i);
185
186     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id.c_str(), cluster->speeds.front());
187
188     simgrid::kernel::routing::HostCreationArgs host;
189     host.id = host_id.c_str();
190     if ((cluster->properties != nullptr) && (not cluster->properties->empty())) {
191       host.properties = new std::unordered_map<std::string, std::string>;
192
193       for (auto const& elm : *cluster->properties)
194         host.properties->insert({elm.first, elm.second});
195     }
196
197     host.speed_per_pstate = cluster->speeds;
198     host.pstate = 0;
199     host.core_amount = cluster->core_amount;
200     host.coord = "";
201     sg_platf_new_host(&host);
202     XBT_DEBUG("</host>");
203
204     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id.c_str(), cluster->bw, cluster->lat);
205
206     // All links are saved in a matrix;
207     // every row describes a single node; every node may have multiple links.
208     // the first column may store a link from x to x if p_has_loopback is set
209     // the second column may store a limiter link if p_has_limiter is set
210     // other columns are to store one or more link for the node
211
212     //add a loopback link
213     simgrid::s4u::Link* linkUp   = nullptr;
214     simgrid::s4u::Link* linkDown = nullptr;
215     if(cluster->loopback_bw > 0 || cluster->loopback_lat > 0){
216       std::string tmp_link = link_id + "_loopback";
217       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link.c_str(), cluster->loopback_bw);
218
219       simgrid::kernel::routing::LinkCreationArgs link;
220       link.id        = tmp_link;
221       link.bandwidth = cluster->loopback_bw;
222       link.latency   = cluster->loopback_lat;
223       link.policy    = simgrid::s4u::Link::SharingPolicy::FATPIPE;
224       sg_platf_new_link(&link);
225       linkUp   = simgrid::s4u::Link::by_name_or_null(tmp_link);
226       linkDown = simgrid::s4u::Link::by_name_or_null(tmp_link);
227
228       auto* as_cluster = static_cast<ClusterZone*>(current_as);
229       as_cluster->private_links_.insert({as_cluster->node_pos(rankId), {linkUp->get_impl(), linkDown->get_impl()}});
230     }
231
232     //add a limiter link (shared link to account for maximal bandwidth of the node)
233     linkUp   = nullptr;
234     linkDown = nullptr;
235     if(cluster->limiter_link > 0){
236       std::string tmp_link = std::string(link_id) + "_limiter";
237       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link.c_str(), cluster->limiter_link);
238
239       simgrid::kernel::routing::LinkCreationArgs link;
240       link.id        = tmp_link;
241       link.bandwidth = cluster->limiter_link;
242       link.latency = 0;
243       link.policy    = simgrid::s4u::Link::SharingPolicy::SHARED;
244       sg_platf_new_link(&link);
245       linkDown = simgrid::s4u::Link::by_name_or_null(tmp_link);
246       linkUp   = linkDown;
247       current_as->private_links_.insert(
248           {current_as->node_pos_with_loopback(rankId), {linkUp->get_impl(), linkDown->get_impl()}});
249     }
250
251     //call the cluster function that adds the others links
252     if (cluster->topology == simgrid::kernel::routing::ClusterTopology::FAT_TREE) {
253       static_cast<FatTreeZone*>(current_as)->add_processing_node(i);
254     } else {
255       current_as->create_links_for_node(cluster, i, rankId, current_as->node_pos_with_loopback_limiter(rankId));
256     }
257     rankId++;
258   }
259   delete cluster->properties;
260
261   // Add a router.
262   XBT_DEBUG(" ");
263   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
264   if (cluster->router_id.empty()) {
265     std::string newid   = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
266     current_as->router_ = sg_platf_new_router(newid, NULL);
267   } else {
268     current_as->router_ = sg_platf_new_router(cluster->router_id, NULL);
269   }
270
271   //Make the backbone
272   if ((cluster->bb_bw > 0) || (cluster->bb_lat > 0)) {
273
274     simgrid::kernel::routing::LinkCreationArgs link;
275     link.id        = std::string(cluster->id)+ "_backbone";
276     link.bandwidth = cluster->bb_bw;
277     link.latency   = cluster->bb_lat;
278     link.policy    = cluster->bb_sharing_policy;
279
280     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id.c_str(), cluster->bb_bw, cluster->bb_lat);
281     sg_platf_new_link(&link);
282
283     routing_cluster_add_backbone(simgrid::s4u::Link::by_name(link.id)->get_impl());
284   }
285
286   XBT_DEBUG("</AS>");
287   sg_platf_new_Zone_seal();
288
289   simgrid::surf::on_cluster(cluster);
290   delete cluster->radicals;
291 }
292
293 void routing_cluster_add_backbone(simgrid::kernel::resource::LinkImpl* bb)
294 {
295   simgrid::kernel::routing::ClusterZone* cluster =
296       dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
297
298   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
299   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->get_cname());
300
301   cluster->backbone_ = bb;
302   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->get_cname());
303 }
304
305 void sg_platf_new_cabinet(simgrid::kernel::routing::CabinetCreationArgs* cabinet)
306 {
307   for (int const& radical : *cabinet->radicals) {
308     std::string hostname = cabinet->prefix + std::to_string(radical) + cabinet->suffix;
309     simgrid::kernel::routing::HostCreationArgs host;
310     host.pstate           = 0;
311     host.core_amount      = 1;
312     host.id               = hostname.c_str();
313     host.speed_per_pstate.push_back(cabinet->speed);
314     sg_platf_new_host(&host);
315
316     simgrid::kernel::routing::LinkCreationArgs link;
317     link.policy    = simgrid::s4u::Link::SharingPolicy::SPLITDUPLEX;
318     link.latency   = cabinet->lat;
319     link.bandwidth = cabinet->bw;
320     link.id        = "link_" + hostname;
321     sg_platf_new_link(&link);
322
323     simgrid::kernel::routing::HostLinkCreationArgs host_link;
324     host_link.id        = hostname;
325     host_link.link_up   = std::string("link_") + hostname + "_UP";
326     host_link.link_down = std::string("link_") + hostname + "_DOWN";
327     sg_platf_new_hostlink(&host_link);
328   }
329   delete cabinet->radicals;
330 }
331
332 void sg_platf_new_storage(simgrid::kernel::routing::StorageCreationArgs* storage)
333 {
334   xbt_assert(std::find(known_storages.begin(), known_storages.end(), storage->id) == known_storages.end(),
335              "Refusing to add a second storage named \"%s\"", storage->id.c_str());
336
337   simgrid::surf::StorageType* stype;
338   auto st = storage_types.find(storage->type_id);
339   if (st != storage_types.end()) {
340     stype = st->second;
341   } else {
342     xbt_die("No storage type '%s'", storage->type_id.c_str());
343   }
344
345   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'", storage->id.c_str(),
346             storage->type_id.c_str(), storage->content.c_str());
347
348   known_storages.push_back(storage->id);
349
350   // if storage content is not specified use the content of storage_type if any
351   if (storage->content.empty() && not stype->content.empty()) {
352     storage->content = stype->content;
353     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s)", storage->id.c_str(),
354               stype->id.c_str());
355   }
356
357   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
358             "\n\t\tmodel '%s' \n\t\tcontent '%s' "
359             "\n\t\tproperties '%p''\n",
360             storage->id.c_str(), stype->model.c_str(), stype->id.c_str(), storage->content.c_str(),
361             storage->properties);
362
363   auto s = surf_storage_model->createStorage(storage->id, stype->id, storage->content, storage->attach);
364
365   if (storage->properties) {
366     for (auto const& elm : *storage->properties)
367       s->set_property(elm.first, elm.second);
368     delete storage->properties;
369   }
370 }
371
372 void sg_platf_new_storage_type(simgrid::kernel::routing::StorageTypeCreationArgs* storage_type)
373 {
374   xbt_assert(storage_types.find(storage_type->id) == storage_types.end(),
375              "Reading a storage type, processing unit \"%s\" already exists", storage_type->id.c_str());
376
377   simgrid::surf::StorageType* stype =
378       new simgrid::surf::StorageType(storage_type->id, storage_type->model, storage_type->content,
379                                      storage_type->properties, storage_type->model_properties, storage_type->size);
380
381   XBT_DEBUG("Create a storage type id '%s' with model '%s', content '%s'", storage_type->id.c_str(),
382             storage_type->model.c_str(), storage_type->content.c_str());
383
384   storage_types[storage_type->id] = stype;
385 }
386
387 void sg_platf_new_mount(simgrid::kernel::routing::MountCreationArgs* mount)
388 {
389   xbt_assert(std::find(known_storages.begin(), known_storages.end(), mount->storageId) != known_storages.end(),
390              "Cannot mount non-existent disk \"%s\"", mount->storageId.c_str());
391
392   XBT_DEBUG("Mount '%s' on '%s'", mount->storageId.c_str(), mount->name.c_str());
393
394   if (mount_list.empty())
395     XBT_DEBUG("Create a Mount list for %s", A_surfxml_host_id);
396   mount_list.insert({mount->name, simgrid::s4u::Engine::get_instance()->storage_by_name(mount->storageId)->get_impl()});
397 }
398
399 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
400 {
401   routing_get_current()->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
402                                    route->symmetrical);
403 }
404
405 void sg_platf_new_bypassRoute(simgrid::kernel::routing::RouteCreationArgs* bypassRoute)
406 {
407   routing_get_current()->add_bypass_route(bypassRoute->src, bypassRoute->dst, bypassRoute->gw_src, bypassRoute->gw_dst,
408                                           bypassRoute->link_list, bypassRoute->symmetrical);
409 }
410
411 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
412 {
413   sg_host_t host = sg_host_by_name(actor->host);
414   if (not host) {
415     // The requested host does not exist. Do a nice message to the user
416     std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
417                       "' does not exist\nExisting hosts: '";
418
419     std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
420
421     for (auto const& host : list) {
422       msg += host->get_name();
423       msg += "', '";
424       if (msg.length() > 1024) {
425         msg.pop_back(); // remove trailing quote
426         msg += "...(list truncated)......";
427         break;
428       }
429     }
430     xbt_die("%s", msg.c_str());
431   }
432   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(actor->function);
433   xbt_assert(factory, "Function '%s' unknown", actor->function);
434
435   double start_time = actor->start_time;
436   double kill_time  = actor->kill_time;
437   bool auto_restart = actor->on_failure != simgrid::kernel::routing::ActorOnFailure::DIE;
438
439   std::string actor_name     = actor->args[0];
440   std::function<void()> code = factory(std::move(actor->args));
441   std::shared_ptr<std::unordered_map<std::string, std::string>> properties(actor->properties);
442
443   simgrid::kernel::actor::ProcessArg* arg =
444       new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, properties, auto_restart);
445
446   host->extension<simgrid::simix::Host>()->boot_processes.push_back(arg);
447
448   if (start_time > SIMIX_get_clock()) {
449
450     arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, properties, auto_restart);
451
452     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
453     SIMIX_timer_set(start_time, [arg, auto_restart]() {
454       smx_actor_t actor = simix_global->create_process_function(arg->name.c_str(), std::move(arg->code), arg->data,
455                                                                 arg->host, arg->properties.get(), nullptr);
456       if (arg->kill_time >= 0)
457         simcall_process_set_kill_time(actor, arg->kill_time);
458       if (auto_restart)
459         SIMIX_process_auto_restart_set(actor, auto_restart);
460       delete arg;
461     });
462   } else {                      // start_time <= SIMIX_get_clock()
463     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
464
465     smx_actor_t actor = simix_global->create_process_function(arg->name.c_str(), std::move(code), nullptr, host,
466                                                               arg->properties.get(), nullptr);
467
468     /* The actor creation will fail if the host is currently dead, but that's fine */
469     if (actor != nullptr) {
470       if (arg->kill_time >= 0)
471         simcall_process_set_kill_time(actor, arg->kill_time);
472       if (auto_restart)
473         SIMIX_process_auto_restart_set(actor, auto_restart);
474     }
475   }
476 }
477
478 void sg_platf_new_peer(simgrid::kernel::routing::PeerCreationArgs* peer)
479 {
480   simgrid::kernel::routing::VivaldiZone* as = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
481   xbt_assert(as, "<peer> tag can only be used in Vivaldi netzones.");
482
483   std::vector<double> speedPerPstate;
484   speedPerPstate.push_back(peer->speed);
485   simgrid::s4u::Host* host = as->create_host(peer->id.c_str(), &speedPerPstate, 1, nullptr);
486
487   as->setPeerLink(host->pimpl_netpoint, peer->bw_in, peer->bw_out, peer->coord);
488
489   /* Change from the defaults */
490   if (peer->state_trace)
491     host->pimpl_cpu->set_state_trace(peer->state_trace);
492   if (peer->speed_trace)
493     host->pimpl_cpu->set_speed_trace(peer->speed_trace);
494 }
495
496 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
497 static void surf_config_models_setup()
498 {
499   std::string host_model_name    = simgrid::config::get_value<std::string>("host/model");
500   std::string network_model_name = simgrid::config::get_value<std::string>("network/model");
501   std::string cpu_model_name     = simgrid::config::get_value<std::string>("cpu/model");
502   std::string storage_model_name = simgrid::config::get_value<std::string>("storage/model");
503
504   /* The compound host model is needed when using non-default net/cpu models */
505   if ((not simgrid::config::is_default("network/model") || not simgrid::config::is_default("cpu/model")) &&
506       simgrid::config::is_default("host/model")) {
507     host_model_name = "compound";
508     simgrid::config::set_value("host/model", host_model_name);
509   }
510
511   XBT_DEBUG("host model: %s", host_model_name.c_str());
512   if (host_model_name == "compound") {
513     xbt_assert(not cpu_model_name.empty(), "Set a cpu model to use with the 'compound' host model");
514     xbt_assert(not network_model_name.empty(), "Set a network model to use with the 'compound' host model");
515
516     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
517     surf_cpu_model_description[cpu_id].model_init_preparse();
518
519     int network_id = find_model_description(surf_network_model_description, network_model_name);
520     surf_network_model_description[network_id].model_init_preparse();
521   }
522
523   XBT_DEBUG("Call host_model_init");
524   int host_id = find_model_description(surf_host_model_description, host_model_name);
525   surf_host_model_description[host_id].model_init_preparse();
526
527   XBT_DEBUG("Call vm_model_init");
528   surf_vm_model_init_HL13();
529
530   XBT_DEBUG("Call storage_model_init");
531   int storage_id = find_model_description(surf_storage_model_description, storage_model_name);
532   surf_storage_model_description[storage_id].model_init_preparse();
533 }
534
535 /**
536  * \brief Add a Zone to the platform
537  *
538  * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
539  * and before the corresponding call to sg_platf_new_Zone_seal() will be added to this Zone.
540  *
541  * Once this function was called, the configuration concerning the used models cannot be changed anymore.
542  *
543  * @param zone the parameters defining the Zone to build.
544  */
545 simgrid::s4u::NetZone* sg_platf_new_Zone_begin(simgrid::kernel::routing::ZoneCreationArgs* zone)
546 {
547   if (not surf_parse_models_setup_already_called) {
548     simgrid::s4u::on_platform_creation();
549
550     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
551      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
552      *
553      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
554      * (FIXME: check it out by creating a file beginning with one of these tags)
555      * but cluster and peer create ASes internally, so putting the code in there is ok.
556      */
557     surf_parse_models_setup_already_called = 1;
558     surf_config_models_setup();
559   }
560
561   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
562                             * any further config now that we created some real content */
563
564   /* search the routing model */
565   simgrid::kernel::routing::NetZoneImpl* new_zone = nullptr;
566   switch (zone->routing) {
567     case A_surfxml_AS_routing_Cluster:
568       new_zone = new simgrid::kernel::routing::ClusterZone(current_routing, zone->id);
569       break;
570     case A_surfxml_AS_routing_ClusterDragonfly:
571       new_zone = new simgrid::kernel::routing::DragonflyZone(current_routing, zone->id);
572       break;
573     case A_surfxml_AS_routing_ClusterTorus:
574       new_zone = new simgrid::kernel::routing::TorusZone(current_routing, zone->id);
575       break;
576     case A_surfxml_AS_routing_ClusterFatTree:
577       new_zone = new simgrid::kernel::routing::FatTreeZone(current_routing, zone->id);
578       break;
579     case A_surfxml_AS_routing_Dijkstra:
580       new_zone = new simgrid::kernel::routing::DijkstraZone(current_routing, zone->id, false);
581       break;
582     case A_surfxml_AS_routing_DijkstraCache:
583       new_zone = new simgrid::kernel::routing::DijkstraZone(current_routing, zone->id, true);
584       break;
585     case A_surfxml_AS_routing_Floyd:
586       new_zone = new simgrid::kernel::routing::FloydZone(current_routing, zone->id);
587       break;
588     case A_surfxml_AS_routing_Full:
589       new_zone = new simgrid::kernel::routing::FullZone(current_routing, zone->id);
590       break;
591     case A_surfxml_AS_routing_None:
592       new_zone = new simgrid::kernel::routing::EmptyZone(current_routing, zone->id);
593       break;
594     case A_surfxml_AS_routing_Vivaldi:
595       new_zone = new simgrid::kernel::routing::VivaldiZone(current_routing, zone->id);
596       break;
597     default:
598       xbt_die("Not a valid model!");
599       break;
600   }
601
602   if (current_routing == nullptr) { /* it is the first one */
603     simgrid::s4u::Engine::get_instance()->set_netzone_root(new_zone);
604   } else {
605     /* set the father behavior */
606     if (current_routing->hierarchy_ == simgrid::kernel::routing::NetZoneImpl::RoutingMode::unset)
607       current_routing->hierarchy_ = simgrid::kernel::routing::NetZoneImpl::RoutingMode::recursive;
608     /* add to the sons dictionary */
609     current_routing->getChildren()->push_back(static_cast<simgrid::s4u::NetZone*>(new_zone));
610   }
611
612   /* set the new current component of the tree */
613   current_routing = new_zone;
614   simgrid::s4u::NetZone::on_creation(*new_zone); // notify the signal
615
616   return new_zone;
617 }
618
619 /**
620  * \brief Specify that the description of the current AS is finished
621  *
622  * Once you've declared all the content of your AS, you have to seal
623  * it with this call. Your AS is not usable until you call this function.
624  */
625 void sg_platf_new_Zone_seal()
626 {
627   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
628   current_routing->seal();
629   simgrid::s4u::NetZone::on_seal(*current_routing);
630   current_routing = static_cast<simgrid::kernel::routing::NetZoneImpl*>(current_routing->get_father());
631 }
632
633 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
634 void sg_platf_new_hostlink(simgrid::kernel::routing::HostLinkCreationArgs* hostlink)
635 {
636   simgrid::kernel::routing::NetPoint* netpoint = sg_host_by_name(hostlink->id.c_str())->pimpl_netpoint;
637   xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
638   xbt_assert(dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing),
639              "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
640
641   simgrid::s4u::Link* linkUp   = simgrid::s4u::Link::by_name_or_null(hostlink->link_up);
642   simgrid::s4u::Link* linkDown = simgrid::s4u::Link::by_name_or_null(hostlink->link_down);
643
644   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
645   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
646
647   auto* as_cluster = static_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
648
649   if (as_cluster->private_links_.find(netpoint->id()) != as_cluster->private_links_.end())
650     surf_parse_error(std::string("Host_link for '") + hostlink->id.c_str() + "' is already defined!");
651
652   XBT_DEBUG("Push Host_link for host '%s' to position %u", netpoint->get_cname(), netpoint->id());
653   as_cluster->private_links_.insert({netpoint->id(), {linkUp->get_impl(), linkDown->get_impl()}});
654 }
655
656 void sg_platf_new_trace(simgrid::kernel::routing::TraceCreationArgs* trace)
657 {
658   tmgr_trace_t tmgr_trace;
659   if (not trace->file.empty()) {
660     tmgr_trace = tmgr_trace_new_from_file(trace->file);
661   } else {
662     xbt_assert(not trace->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
663                trace->id.c_str());
664     tmgr_trace = tmgr_trace_new_from_string(trace->id, trace->pc_data, trace->periodicity);
665   }
666   traces_set_list.insert({trace->id, tmgr_trace});
667 }