1 /* Copyright (c) 2006-2021. The SimGrid Team. All rights reserved. */
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. */
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/kernel/routing/WifiZone.hpp"
19 #include "simgrid/s4u/Engine.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"
31 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
36 xbt::signal<void(ClusterCreationArgs const&)> on_cluster_creation;
37 } // namespace routing
39 } // namespace simgrid
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()
45 return current_routing;
47 static simgrid::s4u::Host* current_host = nullptr;
49 /** Module management function: creates all internal data structures */
52 // Do nothing: just for symmetry of user code
55 /** Module management function: frees all internal data structures */
58 simgrid::kernel::routing::on_cluster_creation.disconnect_slots();
59 simgrid::s4u::Engine::on_platform_created.disconnect_slots();
61 surf_parse_lex_destroy();
64 /** @brief Add a host to the current NetZone */
65 void sg_platf_new_host_begin(const simgrid::kernel::routing::HostCreationArgs* args)
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);
75 void sg_platf_new_host_set_properties(const std::unordered_map<std::string, std::string>& props)
77 xbt_assert(current_host, "Cannot set properties of the current host: none under construction");
78 current_host->set_properties(props);
81 void sg_platf_new_host_seal(int pstate)
83 xbt_assert(current_host, "Cannot seal the current Host: none under construction");
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 */
90 current_host->set_pstate(pstate);
92 current_host = nullptr;
95 void sg_platf_new_peer(const simgrid::kernel::routing::PeerCreationArgs* args)
97 auto* zone = dynamic_cast<simgrid::kernel::routing::VivaldiZone*>(current_routing);
98 xbt_assert(zone, "<peer> tag can only be used in Vivaldi netzones.");
100 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)
106 zone->set_peer_link(peer->get_netpoint(), args->bw_in, args->bw_out);
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)
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());
118 static void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* args, const std::string& link_name)
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)
132 void sg_platf_new_link(const simgrid::kernel::routing::LinkCreationArgs* link)
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");
138 sg_platf_new_link(link, link->id);
142 void sg_platf_new_disk(const simgrid::kernel::routing::DiskCreationArgs* disk)
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)
150 current_host->add_disk(new_disk);
153 void sg_platf_new_cluster(simgrid::kernel::routing::ClusterCreationArgs* cluster)
155 using simgrid::kernel::routing::ClusterZone;
156 using simgrid::kernel::routing::DragonflyZone;
157 using simgrid::kernel::routing::FatTreeZone;
158 using simgrid::kernel::routing::TorusZone;
162 // What an inventive way of initializing the NetZone that I have as ancestor :-(
163 simgrid::kernel::routing::ZoneCreationArgs zone;
164 zone.id = cluster->id;
165 switch (cluster->topology) {
166 case simgrid::kernel::routing::ClusterTopology::TORUS:
167 zone.routing = "ClusterTorus";
169 case simgrid::kernel::routing::ClusterTopology::DRAGONFLY:
170 zone.routing = "ClusterDragonfly";
172 case simgrid::kernel::routing::ClusterTopology::FAT_TREE:
173 zone.routing = "ClusterFatTree";
176 zone.routing = "Cluster";
179 sg_platf_new_Zone_begin(&zone);
180 auto* current_zone = static_cast<ClusterZone*>(routing_get_current());
181 current_zone->parse_specific_arguments(cluster);
182 for (auto const& elm : cluster->properties)
183 current_zone->get_iface()->set_property(elm.first, elm.second);
185 if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
186 current_zone->set_loopback();
189 if (cluster->limiter_link > 0) {
190 current_zone->set_limiter();
193 for (int const& i : cluster->radicals) {
194 std::string host_id = std::string(cluster->prefix) + std::to_string(i) + cluster->suffix;
196 XBT_DEBUG("<host\tid=\"%s\"\tspeed=\"%f\">", host_id.c_str(), cluster->speeds.front());
197 current_zone->create_host(host_id, cluster->speeds)
198 ->set_core_count(cluster->core_amount)
199 ->set_properties(cluster->properties)
202 XBT_DEBUG("</host>");
204 std::string link_id = std::string(cluster->id) + "_link_" + std::to_string(i);
205 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id.c_str(), cluster->bw, cluster->lat);
207 // All links are saved in a matrix;
208 // every row describes a single node; every node may have multiple links.
209 // the first column may store a link from x to x if p_has_loopback is set
210 // the second column may store a limiter link if p_has_limiter is set
211 // other columns are to store one or more link for the node
213 // add a loopback link
214 simgrid::kernel::resource::LinkImpl* loopback = nullptr;
215 if (cluster->loopback_bw > 0 || cluster->loopback_lat > 0) {
216 std::string loopback_name = link_id + "_loopback";
217 XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", loopback_name.c_str(), cluster->loopback_bw);
219 loopback = current_zone->create_link(loopback_name, std::vector<double>{cluster->loopback_bw})
220 ->set_sharing_policy(simgrid::s4u::Link::SharingPolicy::FATPIPE)
221 ->set_latency(cluster->loopback_lat)
225 current_zone->add_private_link_at(current_zone->node_pos(rankId), {loopback, loopback});
228 // add a limiter link (shared link to account for maximal bandwidth of the node)
229 simgrid::kernel::resource::LinkImpl* limiter = nullptr;
230 if (cluster->limiter_link > 0) {
231 std::string limiter_name = std::string(link_id) + "_limiter";
232 XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", limiter_name.c_str(), cluster->limiter_link);
234 limiter = current_zone->create_link(limiter_name, std::vector<double>{cluster->limiter_link})->seal()->get_impl();
236 current_zone->add_private_link_at(current_zone->node_pos_with_loopback(rankId), {limiter, limiter});
239 // call the cluster function that adds the others links
240 if (cluster->topology == simgrid::kernel::routing::ClusterTopology::FAT_TREE) {
241 static_cast<FatTreeZone*>(current_zone)->add_processing_node(i, limiter, loopback);
243 current_zone->create_links_for_node(cluster, i, rankId, current_zone->node_pos_with_loopback_limiter(rankId));
250 XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
251 if (cluster->router_id.empty())
252 cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
253 current_zone->set_router(current_zone->create_router(cluster->router_id));
256 if ((cluster->bb_bw > 0) || (cluster->bb_lat > 0)) {
257 std::string bb_name = std::string(cluster->id) + "_backbone";
258 XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/> <!--backbone -->", bb_name.c_str(), cluster->bb_bw,
261 auto* backbone = current_zone->create_link(bb_name, std::vector<double>{cluster->bb_bw})
262 ->set_sharing_policy(cluster->bb_sharing_policy)
263 ->set_latency(cluster->bb_lat)
266 current_zone->set_backbone(backbone);
269 XBT_DEBUG("</zone>");
270 sg_platf_new_Zone_seal();
272 simgrid::kernel::routing::on_cluster_creation(*cluster);
275 void routing_cluster_add_backbone(simgrid::kernel::resource::LinkImpl* bb)
277 auto* cluster = dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
279 xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
280 xbt_assert(not cluster->has_backbone(), "Cluster %s already has a backbone link!", cluster->get_cname());
282 cluster->set_backbone(bb);
283 XBT_DEBUG("Add a backbone to zone '%s'", current_routing->get_cname());
286 void sg_platf_new_cabinet(const simgrid::kernel::routing::CabinetCreationArgs* args)
288 auto* zone = static_cast<simgrid::kernel::routing::ClusterZone*>(routing_get_current());
289 for (int const& radical : args->radicals) {
290 std::string id = args->prefix + std::to_string(radical) + args->suffix;
291 auto const* host = zone->create_host(id, std::vector<double>{args->speed})->seal();
294 zone->create_link("link_" + id + "_UP", std::vector<double>{args->bw})->set_latency(args->lat)->seal();
297 zone->create_link("link_" + id + "_DOWN", std::vector<double>{args->bw})->set_latency(args->lat)->seal();
299 zone->add_private_link_at(host->get_netpoint()->id(), {link_up->get_impl(), link_down->get_impl()});
303 void sg_platf_new_route(simgrid::kernel::routing::RouteCreationArgs* route)
305 routing_get_current()->add_route(route->src, route->dst, route->gw_src, route->gw_dst, route->link_list,
309 void sg_platf_new_bypassRoute(simgrid::kernel::routing::RouteCreationArgs* bypassRoute)
311 routing_get_current()->add_bypass_route(bypassRoute->src, bypassRoute->dst, bypassRoute->gw_src, bypassRoute->gw_dst,
312 bypassRoute->link_list, bypassRoute->symmetrical);
315 void sg_platf_new_actor(simgrid::kernel::routing::ActorCreationArgs* actor)
317 sg_host_t host = sg_host_by_name(actor->host);
319 // The requested host does not exist. Do a nice message to the user
320 std::string msg = std::string("Cannot create actor '") + actor->function + "': host '" + actor->host +
321 "' does not exist\nExisting hosts: '";
323 std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
325 for (auto const& some_host : list) {
326 msg += some_host->get_name();
328 if (msg.length() > 1024) {
329 msg.pop_back(); // remove trailing quote
330 msg += "...(list truncated)......";
334 xbt_die("%s", msg.c_str());
336 const simgrid::kernel::actor::ActorCodeFactory& factory =
337 simgrid::kernel::EngineImpl::get_instance()->get_function(actor->function);
338 xbt_assert(factory, "Error while creating an actor from the XML file: Function '%s' not registered", actor->function);
340 double start_time = actor->start_time;
341 double kill_time = actor->kill_time;
342 bool auto_restart = actor->restart_on_failure;
344 std::string actor_name = actor->args[0];
345 simgrid::kernel::actor::ActorCode code = factory(std::move(actor->args));
347 auto* arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
350 host->get_impl()->add_actor_at_boot(arg);
352 if (start_time > SIMIX_get_clock()) {
353 arg = new simgrid::kernel::actor::ProcessArg(actor_name, code, nullptr, host, kill_time, actor->properties,
356 XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->get_cname(), start_time);
357 simgrid::simix::Timer::set(start_time, [arg, auto_restart]() {
358 simgrid::kernel::actor::ActorImplPtr new_actor =
359 simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), arg->code, arg->data, arg->host, nullptr);
360 new_actor->set_properties(arg->properties);
361 if (arg->kill_time >= 0)
362 new_actor->set_kill_time(arg->kill_time);
364 new_actor->set_auto_restart(auto_restart);
367 } else { // start_time <= SIMIX_get_clock()
368 XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->get_cname());
371 simgrid::kernel::actor::ActorImplPtr new_actor = nullptr;
372 new_actor = simgrid::kernel::actor::ActorImpl::create(arg->name.c_str(), code, nullptr, host, nullptr);
373 new_actor->set_properties(arg->properties);
374 /* The actor creation will fail if the host is currently dead, but that's fine */
375 if (arg->kill_time >= 0)
376 new_actor->set_kill_time(arg->kill_time);
378 new_actor->set_auto_restart(auto_restart);
379 } catch (simgrid::HostFailureException const&) {
380 XBT_WARN("Deployment includes some initially turned off Hosts ... nevermind.");
386 * @brief Auxiliary function to build the object NetZoneImpl
388 * Builds the objects, setting its father properties and root netzone if needed
389 * @param zone the parameters defining the Zone to build.
390 * @return Pointer to recently created netzone
392 static simgrid::kernel::routing::NetZoneImpl*
393 sg_platf_create_zone(const simgrid::kernel::routing::ZoneCreationArgs* zone)
395 /* search the routing model */
396 simgrid::kernel::routing::NetZoneImpl* new_zone = nullptr;
398 if (strcasecmp(zone->routing.c_str(), "Cluster") == 0) {
399 new_zone = new simgrid::kernel::routing::ClusterZone(zone->id);
400 } else if (strcasecmp(zone->routing.c_str(), "ClusterDragonfly") == 0) {
401 new_zone = new simgrid::kernel::routing::DragonflyZone(zone->id);
402 } else if (strcasecmp(zone->routing.c_str(), "ClusterTorus") == 0) {
403 new_zone = new simgrid::kernel::routing::TorusZone(zone->id);
404 } else if (strcasecmp(zone->routing.c_str(), "ClusterFatTree") == 0) {
405 new_zone = new simgrid::kernel::routing::FatTreeZone(zone->id);
406 } else if (strcasecmp(zone->routing.c_str(), "Dijkstra") == 0) {
407 new_zone = new simgrid::kernel::routing::DijkstraZone(zone->id, false);
408 } else if (strcasecmp(zone->routing.c_str(), "DijkstraCache") == 0) {
409 new_zone = new simgrid::kernel::routing::DijkstraZone(zone->id, true);
410 } else if (strcasecmp(zone->routing.c_str(), "Floyd") == 0) {
411 new_zone = new simgrid::kernel::routing::FloydZone(zone->id);
412 } else if (strcasecmp(zone->routing.c_str(), "Full") == 0) {
413 new_zone = new simgrid::kernel::routing::FullZone(zone->id);
414 } else if (strcasecmp(zone->routing.c_str(), "None") == 0) {
415 new_zone = new simgrid::kernel::routing::EmptyZone(zone->id);
416 } else if (strcasecmp(zone->routing.c_str(), "Vivaldi") == 0) {
417 new_zone = new simgrid::kernel::routing::VivaldiZone(zone->id);
418 } else if (strcasecmp(zone->routing.c_str(), "Wifi") == 0) {
419 new_zone = new simgrid::kernel::routing::WifiZone(zone->id);
421 xbt_die("Not a valid model!");
423 new_zone->set_parent(current_routing);
429 * @brief Add a Zone to the platform
431 * Add a new autonomous system to the platform. Any elements (such as host, router or sub-Zone) added after this call
432 * and before the corresponding call to sg_platf_new_Zone_seal() will be added to this Zone.
434 * Once this function was called, the configuration concerning the used models cannot be changed anymore.
436 * @param zone the parameters defining the Zone to build.
438 simgrid::kernel::routing::NetZoneImpl* sg_platf_new_Zone_begin(const simgrid::kernel::routing::ZoneCreationArgs* zone)
440 /* First create the zone.
441 * This order is important to assure that root netzone is set when models are setting
442 * the default mode for each resource (CPU, network, etc)
444 auto* new_zone = sg_platf_create_zone(zone);
446 _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
447 * any further config now that we created some real content */
449 /* set the new current component of the tree */
450 current_routing = new_zone;
451 simgrid::s4u::NetZone::on_creation(*new_zone->get_iface()); // notify the signal
456 void sg_platf_new_Zone_set_properties(const std::unordered_map<std::string, std::string>& props)
458 xbt_assert(current_routing, "Cannot set properties of the current Zone: none under construction");
460 current_routing->set_properties(props);
464 * @brief Specify that the description of the current Zone is finished
466 * Once you've declared all the content of your Zone, you have to seal
467 * it with this call. Your Zone is not usable until you call this function.
469 void sg_platf_new_Zone_seal()
471 xbt_assert(current_routing, "Cannot seal the current Zone: none under construction");
472 current_routing->seal();
473 simgrid::s4u::NetZone::on_seal(*current_routing->get_iface());
474 current_routing = current_routing->get_parent();
477 /** @brief Add a link connecting a host to the rest of its Zone (which must be cluster or vivaldi) */
478 void sg_platf_new_hostlink(const simgrid::kernel::routing::HostLinkCreationArgs* hostlink)
480 const simgrid::kernel::routing::NetPoint* netpoint = simgrid::s4u::Host::by_name(hostlink->id)->get_netpoint();
481 xbt_assert(netpoint, "Host '%s' not found!", hostlink->id.c_str());
482 xbt_assert(dynamic_cast<simgrid::kernel::routing::ClusterZone*>(current_routing),
483 "Only hosts from Cluster and Vivaldi Zones can get a host_link.");
485 const simgrid::s4u::Link* linkUp = simgrid::s4u::Link::by_name_or_null(hostlink->link_up);
486 const simgrid::s4u::Link* linkDown = simgrid::s4u::Link::by_name_or_null(hostlink->link_down);
488 xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up.c_str());
489 xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down.c_str());
491 auto* cluster_zone = static_cast<simgrid::kernel::routing::ClusterZone*>(current_routing);
493 if (cluster_zone->private_link_exists_at(netpoint->id()))
494 surf_parse_error(std::string("Host_link for '") + hostlink->id.c_str() + "' is already defined!");
496 XBT_DEBUG("Push Host_link for host '%s' to position %u", netpoint->get_cname(), netpoint->id());
497 cluster_zone->add_private_link_at(netpoint->id(), {linkUp->get_impl(), linkDown->get_impl()});
500 void sg_platf_new_trace(simgrid::kernel::routing::ProfileCreationArgs* args)
502 simgrid::kernel::profile::Profile* profile;
503 if (not args->file.empty()) {
504 profile = simgrid::kernel::profile::Profile::from_file(args->file);
506 xbt_assert(not args->pc_data.empty(), "Trace '%s' must have either a content, or point to a file on disk.",
508 profile = simgrid::kernel::profile::Profile::from_string(args->id, args->pc_data, args->periodicity);
510 traces_set_list.insert({args->id, profile});