src/instr/instr_platform.cpp

   1 /* Copyright (c) 2010-2020. 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 "src/instr/instr_private.hpp"
   7
   8 #include "simgrid/kernel/routing/NetPoint.hpp"
   9 #include "simgrid/kernel/routing/NetZoneImpl.hpp"
  10 #include "simgrid/s4u/Actor.hpp"
  11 #include "simgrid/s4u/Comm.hpp"
  12 #include "simgrid/s4u/Engine.hpp"
  13 #include "simgrid/s4u/Exec.hpp"
  14 #include "simgrid/s4u/Host.hpp"
  15 #include "simgrid/s4u/VirtualMachine.hpp"
  16 #include "src/surf/cpu_interface.hpp"
  17 #include "src/surf/network_interface.hpp"
  18 #include "src/surf/surf_interface.hpp"
  19 #include "src/surf/xml/platf_private.hpp"
  20 #include "surf/surf.hpp"
  21 #include "xbt/graph.h"
  22
  23 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(instr_routing, instr, "Tracing platform hierarchy");
  24
  25 static std::vector<simgrid::instr::NetZoneContainer*> currentContainer; /* push and pop, used only in creation */
  26
  27 static const char* instr_node_name(const s_xbt_node_t* node)
  28 {
  29   return static_cast<char*>(xbt_graph_node_get_data(node));
  30 }
  31
  32 static container_t lowestCommonAncestor(const simgrid::instr::Container* a1, const simgrid::instr::Container* a2)
  33 {
  34   // this is only an optimization (since most of a1 and a2 share the same parent)
  35   if (a1->father_ == a2->father_)
  36     return a1->father_;
  37
  38   // create an array with all ancestors of a1
  39   std::vector<container_t> ancestors_a1;
  40   container_t p = a1->father_;
  41   while (p) {
  42     ancestors_a1.push_back(p);
  43     p = p->father_;
  44   }
  45
  46   // create an array with all ancestors of a2
  47   std::vector<container_t> ancestors_a2;
  48   p = a2->father_;
  49   while (p) {
  50     ancestors_a2.push_back(p);
  51     p = p->father_;
  52   }
  53
  54   // find the lowest ancestor
  55   p     = nullptr;
  56   int i = ancestors_a1.size() - 1;
  57   int j = ancestors_a2.size() - 1;
  58   while (i >= 0 && j >= 0) {
  59     container_t a1p = ancestors_a1.at(i);
  60     const simgrid::instr::Container* a2p = ancestors_a2.at(j);
  61     if (a1p == a2p) {
  62       p = a1p;
  63     } else {
  64       break;
  65     }
  66     i--;
  67     j--;
  68   }
  69   return p;
  70 }
  71
  72 static void linkContainers(container_t src, container_t dst, std::set<std::string>* filter)
  73 {
  74   // ignore loopback
  75   if (src->get_name() == "__loopback__" || dst->get_name() == "__loopback__") {
  76     XBT_DEBUG("  linkContainers: ignoring loopback link");
  77     return;
  78   }
  79
  80   // find common father
  81   container_t father = lowestCommonAncestor(src, dst);
  82   if (not father) {
  83     xbt_die("common father unknown, this is a tracing problem");
  84   }
  85
  86   // check if we already register this pair (we only need one direction)
  87   std::string aux1 = src->get_name() + dst->get_name();
  88   std::string aux2 = dst->get_name() + src->get_name();
  89   if (filter->find(aux1) != filter->end()) {
  90     XBT_DEBUG("  linkContainers: already registered %s <-> %s (1)", src->get_cname(), dst->get_cname());
  91     return;
  92   }
  93   if (filter->find(aux2) != filter->end()) {
  94     XBT_DEBUG("  linkContainers: already registered %s <-> %s (2)", dst->get_cname(), src->get_cname());
  95     return;
  96   }
  97
  98   // ok, not found, register it
  99   filter->insert(aux1);
 100   filter->insert(aux2);
 101
 102   // declare type
 103   std::string link_typename = father->type_->get_name() + "-" + src->type_->get_name() +
 104                               std::to_string(src->type_->get_id()) + "-" + dst->type_->get_name() +
 105                               std::to_string(dst->type_->get_id());
 106   simgrid::instr::LinkType* link = father->type_->by_name_or_create(link_typename, src->type_, dst->type_);
 107   link->set_calling_container(father);
 108
 109   // create the link
 110   static long long counter = 0;
 111
 112   std::string key = std::to_string(counter);
 113   counter++;
 114
 115   link->start_event(src, "topology", key);
 116   link->end_event(dst, "topology", key);
 117
 118   XBT_DEBUG("  linkContainers %s <-> %s", src->get_cname(), dst->get_cname());
 119 }
 120
 121 static void recursiveGraphExtraction(const simgrid::s4u::NetZone* netzone, container_t container,
 122                                      std::set<std::string>* filter)
 123 {
 124   if (not TRACE_platform_topology()) {
 125     XBT_DEBUG("Graph extraction disabled by user.");
 126     return;
 127   }
 128   XBT_DEBUG("Graph extraction for NetZone = %s", netzone->get_cname());
 129   if (not netzone->get_children().empty()) {
 130     // bottom-up recursion
 131     for (auto const& nz_son : netzone->get_children()) {
 132       container_t child_container = container->children_.at(nz_son->get_name());
 133       recursiveGraphExtraction(nz_son, child_container, filter);
 134     }
 135   }
 136
 137   xbt_graph_t graph                        = xbt_graph_new_graph(0, nullptr);
 138   std::map<std::string, xbt_node_t>* nodes = new std::map<std::string, xbt_node_t>();
 139   std::map<std::string, xbt_edge_t>* edges = new std::map<std::string, xbt_edge_t>();
 140
 141   netzone->get_impl()->get_graph(graph, nodes, edges);
 142   for (auto elm : *edges) {
 143     const xbt_edge* edge = elm.second;
 144     linkContainers(simgrid::instr::Container::by_name(static_cast<const char*>(edge->src->data)),
 145                    simgrid::instr::Container::by_name(static_cast<const char*>(edge->dst->data)), filter);
 146   }
 147   delete nodes;
 148   delete edges;
 149   xbt_graph_free_graph(graph, xbt_free_f, xbt_free_f, nullptr);
 150 }
 151
 152 /*
 153  * Callbacks
 154  */
 155 static void instr_netzone_on_creation(simgrid::s4u::NetZone const& netzone)
 156 {
 157   std::string id = netzone.get_name();
 158   if (simgrid::instr::Container::get_root() == nullptr) {
 159     simgrid::instr::NetZoneContainer* root = new simgrid::instr::NetZoneContainer(id, 0, nullptr);
 160     xbt_assert(simgrid::instr::Container::get_root() == root);
 161
 162     if (TRACE_smpi_is_enabled()) {
 163       simgrid::instr::ContainerType* mpi = root->type_->by_name_or_create<simgrid::instr::ContainerType>("MPI");
 164       if (not TRACE_smpi_is_grouped())
 165         mpi->by_name_or_create<simgrid::instr::StateType>("MPI_STATE");
 166       root->type_->by_name_or_create("MPI_LINK", mpi, mpi);
 167       // TODO See if we can move this to the LoadBalancer plugin
 168       root->type_->by_name_or_create("MIGRATE_LINK", mpi, mpi);
 169       mpi->by_name_or_create<simgrid::instr::StateType>("MIGRATE_STATE");
 170     }
 171
 172     if (TRACE_needs_platform()) {
 173       currentContainer.push_back(root);
 174     }
 175     return;
 176   }
 177
 178   if (TRACE_needs_platform()) {
 179     simgrid::instr::NetZoneContainer* container =
 180         new simgrid::instr::NetZoneContainer(id, currentContainer.size(), currentContainer.back());
 181     currentContainer.push_back(container);
 182   }
 183 }
 184
 185 static void instr_link_on_creation(simgrid::s4u::Link const& link)
 186 {
 187   if (currentContainer.empty()) // No ongoing parsing. Are you creating the loopback?
 188     return;
 189
 190   container_t container = new simgrid::instr::Container(link.get_name(), "LINK", currentContainer.back());
 191
 192   if ((TRACE_categorized() || TRACE_uncategorized() || TRACE_platform()) && (not TRACE_disable_link())) {
 193     simgrid::instr::VariableType* bandwidth = container->type_->by_name_or_create("bandwidth", "");
 194     bandwidth->set_calling_container(container);
 195     bandwidth->set_event(0, link.get_bandwidth());
 196     simgrid::instr::VariableType* latency = container->type_->by_name_or_create("latency", "");
 197     latency->set_calling_container(container);
 198     latency->set_event(0, link.get_latency());
 199   }
 200   if (TRACE_uncategorized()) {
 201     container->type_->by_name_or_create("bandwidth_used", "0.5 0.5 0.5");
 202   }
 203 }
 204
 205 static void instr_host_on_creation(simgrid::s4u::Host const& host)
 206 {
 207   simgrid::instr::Container* container  = new simgrid::instr::HostContainer(host, currentContainer.back());
 208   const simgrid::instr::Container* root = simgrid::instr::Container::get_root();
 209
 210   if ((TRACE_categorized() || TRACE_uncategorized() || TRACE_platform()) && (not TRACE_disable_speed())) {
 211     simgrid::instr::VariableType* speed = container->type_->by_name_or_create("speed", "");
 212     speed->set_calling_container(container);
 213     speed->set_event(0, host.get_speed());
 214
 215     simgrid::instr::VariableType* cores = container->type_->by_name_or_create("core_count", "");
 216     cores->set_calling_container(container);
 217     cores->set_event(0, host.get_core_count());
 218   }
 219
 220   if (TRACE_uncategorized())
 221     container->type_->by_name_or_create("speed_used", "0.5 0.5 0.5");
 222
 223   if (TRACE_smpi_is_enabled() && TRACE_smpi_is_grouped()) {
 224     simgrid::instr::ContainerType* mpi = container->type_->by_name_or_create<simgrid::instr::ContainerType>("MPI");
 225     mpi->by_name_or_create<simgrid::instr::StateType>("MPI_STATE");
 226     // TODO See if we can move this to the LoadBalancer plugin
 227     root->type_->by_name_or_create("MIGRATE_LINK", mpi, mpi);
 228     mpi->by_name_or_create<simgrid::instr::StateType>("MIGRATE_STATE");
 229   }
 230 }
 231
 232 static void instr_host_on_speed_change(simgrid::s4u::Host const& host)
 233 {
 234   simgrid::instr::Container::by_name(host.get_name())
 235       ->get_variable("speed")
 236       ->set_event(surf_get_clock(), host.get_core_count() * host.get_available_speed());
 237 }
 238
 239 static void instr_action_on_state_change(simgrid::kernel::resource::Action const& action,
 240                                          simgrid::kernel::resource::Action::State /* previous */)
 241 {
 242   int n = action.get_variable()->get_number_of_constraint();
 243
 244   for (int i = 0; i < n; i++) {
 245     double value = action.get_variable()->get_value() * action.get_variable()->get_constraint_weight(i);
 246     /* Beware of composite actions: ptasks put links and cpus together. Extra pb: we cannot dynamic_cast from void* */
 247     simgrid::kernel::resource::Resource* resource = action.get_variable()->get_constraint(i)->get_id();
 248     const simgrid::kernel::resource::Cpu* cpu     = dynamic_cast<simgrid::kernel::resource::Cpu*>(resource);
 249
 250     if (cpu != nullptr)
 251       TRACE_surf_resource_set_utilization("HOST", "speed_used", cpu->get_cname(), action.get_category(), value,
 252                                           action.get_last_update(), SIMIX_get_clock() - action.get_last_update());
 253
 254     const simgrid::kernel::resource::LinkImpl* link = dynamic_cast<simgrid::kernel::resource::LinkImpl*>(resource);
 255
 256     if (link != nullptr)
 257       TRACE_surf_resource_set_utilization("LINK", "bandwidth_used", link->get_cname(), action.get_category(), value,
 258                                           action.get_last_update(), SIMIX_get_clock() - action.get_last_update());
 259   }
 260 }
 261
 262 static void instr_link_on_bandwidth_change(simgrid::s4u::Link const& link)
 263 {
 264   simgrid::instr::Container::by_name(link.get_name())
 265       ->get_variable("bandwidth")
 266       ->set_event(surf_get_clock(), sg_bandwidth_factor * link.get_bandwidth());
 267 }
 268
 269 static void instr_netpoint_on_creation(simgrid::kernel::routing::NetPoint const& netpoint)
 270 {
 271   if (netpoint.is_router())
 272     new simgrid::instr::RouterContainer(netpoint.get_name(), currentContainer.back());
 273 }
 274
 275 static void instr_on_platform_created()
 276 {
 277   currentContainer.clear();
 278   std::set<std::string>* filter = new std::set<std::string>();
 279   XBT_DEBUG("Starting graph extraction.");
 280   recursiveGraphExtraction(simgrid::s4u::Engine::get_instance()->get_netzone_root(),
 281                            simgrid::instr::Container::get_root(), filter);
 282   XBT_DEBUG("Graph extraction finished.");
 283   delete filter;
 284   TRACE_paje_dump_buffer(true);
 285 }
 286
 287 static void instr_actor_on_creation(simgrid::s4u::Actor const& actor)
 288 {
 289   const simgrid::instr::Container* root = simgrid::instr::Container::get_root();
 290   simgrid::instr::Container* container  = simgrid::instr::Container::by_name(actor.get_host()->get_name());
 291
 292   container->create_child(instr_pid(actor), "ACTOR");
 293   simgrid::instr::ContainerType* actor_type =
 294       container->type_->by_name_or_create<simgrid::instr::ContainerType>("ACTOR");
 295   simgrid::instr::StateType* state = actor_type->by_name_or_create<simgrid::instr::StateType>("ACTOR_STATE");
 296   state->add_entity_value("suspend", "1 0 1");
 297   state->add_entity_value("sleep", "1 1 0");
 298   state->add_entity_value("receive", "1 0 0");
 299   state->add_entity_value("send", "0 0 1");
 300   state->add_entity_value("execute", "0 1 1");
 301   root->type_->by_name_or_create("ACTOR_LINK", actor_type, actor_type);
 302   root->type_->by_name_or_create("ACTOR_TASK_LINK", actor_type, actor_type);
 303
 304   std::string container_name = instr_pid(actor);
 305   actor.on_exit([container_name](bool failed) {
 306     if (failed)
 307       // kill means that this actor no longer exists, let's destroy it
 308       simgrid::instr::Container::by_name(container_name)->remove_from_parent();
 309   });
 310 }
 311
 312 static void instr_actor_on_host_change(simgrid::s4u::Actor const& actor,
 313                                        simgrid::s4u::Host const& /*previous_location*/)
 314 {
 315   static long long int counter = 0;
 316   container_t container = simgrid::instr::Container::by_name(instr_pid(actor));
 317   simgrid::instr::LinkType* link = simgrid::instr::Container::get_root()->get_link("ACTOR_LINK");
 318
 319   // start link
 320   link->start_event(container, "M", std::to_string(counter));
 321   // destroy existing container of this process
 322   container->remove_from_parent();
 323   // create new container on the new_host location
 324   simgrid::instr::Container::by_name(actor.get_host()->get_name())->create_child(instr_pid(actor), "ACTOR");
 325   // end link
 326   link->end_event(simgrid::instr::Container::by_name(instr_pid(actor)), "M", std::to_string(counter));
 327   counter++;
 328 }
 329
 330 static void instr_vm_on_creation(simgrid::s4u::Host const& host)
 331 {
 332   const simgrid::instr::Container* container = new simgrid::instr::HostContainer(host, currentContainer.back());
 333   const simgrid::instr::Container* root      = simgrid::instr::Container::get_root();
 334   simgrid::instr::ContainerType* vm = container->type_->by_name_or_create<simgrid::instr::ContainerType>("VM");
 335   simgrid::instr::StateType* state  = vm->by_name_or_create<simgrid::instr::StateType>("VM_STATE");
 336   state->add_entity_value("suspend", "1 0 1");
 337   state->add_entity_value("sleep", "1 1 0");
 338   state->add_entity_value("receive", "1 0 0");
 339   state->add_entity_value("send", "0 0 1");
 340   state->add_entity_value("execute", "0 1 1");
 341   root->type_->by_name_or_create("VM_LINK", vm, vm);
 342   root->type_->by_name_or_create("VM_ACTOR_LINK", vm, vm);
 343 }
 344
 345 void instr_define_callbacks()
 346 {
 347   // always need the callbacks to zones (we need only the root zone), to create the rootContainer and the rootType
 348   // properly
 349   if (TRACE_needs_platform()) {
 350     simgrid::s4u::Engine::on_platform_created.connect(instr_on_platform_created);
 351     simgrid::s4u::Host::on_creation.connect(instr_host_on_creation);
 352     simgrid::s4u::Host::on_speed_change.connect(instr_host_on_speed_change);
 353     simgrid::s4u::Link::on_creation.connect(instr_link_on_creation);
 354     simgrid::s4u::Link::on_bandwidth_change.connect(instr_link_on_bandwidth_change);
 355     simgrid::s4u::NetZone::on_seal.connect(
 356         [](simgrid::s4u::NetZone const& /*netzone*/) { currentContainer.pop_back(); });
 357     simgrid::kernel::routing::NetPoint::on_creation.connect(instr_netpoint_on_creation);
 358   }
 359   simgrid::s4u::NetZone::on_creation.connect(instr_netzone_on_creation);
 360
 361   simgrid::kernel::resource::CpuAction::on_state_change.connect(instr_action_on_state_change);
 362   simgrid::s4u::Link::on_communication_state_change.connect(instr_action_on_state_change);
 363
 364   if (TRACE_actor_is_enabled()) {
 365     simgrid::s4u::Actor::on_creation.connect(instr_actor_on_creation);
 366     simgrid::s4u::Actor::on_destruction.connect([](simgrid::s4u::Actor const& actor) {
 367       auto container = simgrid::instr::Container::by_name_or_null(instr_pid(actor));
 368       if (container != nullptr)
 369         container->remove_from_parent();
 370     });
 371     simgrid::s4u::Actor::on_suspend.connect([](simgrid::s4u::Actor const& actor) {
 372       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("suspend");
 373     });
 374     simgrid::s4u::Actor::on_resume.connect([](simgrid::s4u::Actor const& actor) {
 375       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 376     });
 377     simgrid::s4u::Actor::on_sleep.connect([](simgrid::s4u::Actor const& actor) {
 378       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("sleep");
 379     });
 380     simgrid::s4u::Actor::on_wake_up.connect([](simgrid::s4u::Actor const& actor) {
 381       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 382     });
 383     simgrid::s4u::Exec::on_start.connect([](simgrid::s4u::Actor const& actor, simgrid::s4u::Exec const&) {
 384       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("execute");
 385     });
 386     simgrid::s4u::Exec::on_completion.connect([](simgrid::s4u::Actor const& actor, simgrid::s4u::Exec const&) {
 387       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 388     });
 389     simgrid::s4u::Comm::on_sender_start.connect([](simgrid::s4u::Actor const& actor) {
 390       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("send");
 391     });
 392     simgrid::s4u::Comm::on_receiver_start.connect([](simgrid::s4u::Actor const& actor) {
 393       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("receive");
 394     });
 395     simgrid::s4u::Comm::on_completion.connect([](simgrid::s4u::Actor const& actor) {
 396       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 397     });
 398     simgrid::s4u::Actor::on_host_change.connect(instr_actor_on_host_change);
 399   }
 400
 401   if (TRACE_vm_is_enabled()) {
 402     simgrid::s4u::Host::on_creation.connect(instr_vm_on_creation);
 403     simgrid::s4u::VirtualMachine::on_start.connect([](simgrid::s4u::VirtualMachine const& vm) {
 404       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->push_event("start");
 405     });
 406     simgrid::s4u::VirtualMachine::on_started.connect([](simgrid::s4u::VirtualMachine const& vm) {
 407       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->pop_event();
 408     });
 409     simgrid::s4u::VirtualMachine::on_suspend.connect([](simgrid::s4u::VirtualMachine const& vm) {
 410       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->push_event("suspend");
 411     });
 412     simgrid::s4u::VirtualMachine::on_resume.connect([](simgrid::s4u::VirtualMachine const& vm) {
 413       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->pop_event();
 414     });
 415     simgrid::s4u::Host::on_destruction.connect([](simgrid::s4u::Host const& host) {
 416       simgrid::instr::Container::by_name(host.get_name())->remove_from_parent();
 417     });
 418   }
 419 }
 420 /*
 421  * user categories support
 422  */
 423 static void recursiveNewVariableType(const std::string& new_typename, const std::string& color,
 424                                      simgrid::instr::Type* root)
 425 {
 426   if (root->get_name() == "HOST" || root->get_name() == "VM")
 427     root->by_name_or_create(std::string("p") + new_typename, color);
 428
 429   if (root->get_name() == "LINK")
 430     root->by_name_or_create(std::string("b") + new_typename, color);
 431
 432   for (auto const& elm : root->children_) {
 433     recursiveNewVariableType(new_typename, color, elm.second.get());
 434   }
 435 }
 436
 437 void instr_new_variable_type(const std::string& new_typename, const std::string& color)
 438 {
 439   recursiveNewVariableType(new_typename, color, simgrid::instr::Container::get_root()->type_);
 440 }
 441
 442 static void recursiveNewUserVariableType(const std::string& father_type, const std::string& new_typename,
 443                                          const std::string& color, simgrid::instr::Type* root)
 444 {
 445   if (root->get_name() == father_type) {
 446     root->by_name_or_create(new_typename, color);
 447   }
 448   for (auto const& elm : root->children_)
 449     recursiveNewUserVariableType(father_type, new_typename, color, elm.second.get());
 450 }
 451
 452 void instr_new_user_variable_type(const std::string& father_type, const std::string& new_typename,
 453                                   const std::string& color)
 454 {
 455   recursiveNewUserVariableType(father_type, new_typename, color, simgrid::instr::Container::get_root()->type_);
 456 }
 457
 458 static void recursiveNewUserStateType(const std::string& father_type, const std::string& new_typename,
 459                                       simgrid::instr::Type* root)
 460 {
 461   if (root->get_name() == father_type)
 462     root->by_name_or_create<simgrid::instr::StateType>(new_typename);
 463
 464   for (auto const& elm : root->children_)
 465     recursiveNewUserStateType(father_type, new_typename, elm.second.get());
 466 }
 467
 468 void instr_new_user_state_type(const std::string& father_type, const std::string& new_typename)
 469 {
 470   recursiveNewUserStateType(father_type, new_typename, simgrid::instr::Container::get_root()->type_);
 471 }
 472
 473 static void recursiveNewValueForUserStateType(const std::string& type_name, const char* val, const std::string& color,
 474                                               simgrid::instr::Type* root)
 475 {
 476   if (root->get_name() == type_name)
 477     static_cast<simgrid::instr::StateType*>(root)->add_entity_value(val, color);
 478
 479   for (auto const& elm : root->children_)
 480     recursiveNewValueForUserStateType(type_name, val, color, elm.second.get());
 481 }
 482
 483 void instr_new_value_for_user_state_type(const std::string& type_name, const char* value, const std::string& color)
 484 {
 485   recursiveNewValueForUserStateType(type_name, value, color, simgrid::instr::Container::get_root()->type_);
 486 }
 487
 488 #define GRAPHICATOR_SUPPORT_FUNCTIONS
 489
 490 static void recursiveXBTGraphExtraction(const s_xbt_graph_t* graph, std::map<std::string, xbt_node_t>* nodes,
 491                                         std::map<std::string, xbt_edge_t>* edges, const_sg_netzone_t netzone,
 492                                         container_t container)
 493 {
 494   if (not netzone->get_children().empty()) {
 495     // bottom-up recursion
 496     for (auto const& netzone_child : netzone->get_children()) {
 497       container_t child_container = container->children_.at(netzone_child->get_name());
 498       recursiveXBTGraphExtraction(graph, nodes, edges, netzone_child, child_container);
 499     }
 500   }
 501
 502   netzone->get_impl()->get_graph(graph, nodes, edges);
 503 }
 504
 505 xbt_graph_t instr_routing_platform_graph()
 506 {
 507   xbt_graph_t ret                          = xbt_graph_new_graph(0, nullptr);
 508   std::map<std::string, xbt_node_t>* nodes = new std::map<std::string, xbt_node_t>();
 509   std::map<std::string, xbt_edge_t>* edges = new std::map<std::string, xbt_edge_t>();
 510   recursiveXBTGraphExtraction(ret, nodes, edges, simgrid::s4u::Engine::get_instance()->get_netzone_root(),
 511                               simgrid::instr::Container::get_root());
 512   delete nodes;
 513   delete edges;
 514   return ret;
 515 }
 516
 517 void instr_routing_platform_graph_export_graphviz(const s_xbt_graph_t* g, const char* filename)
 518 {
 519   unsigned int cursor = 0;
 520   xbt_node_t node     = nullptr;
 521   xbt_edge_t edge     = nullptr;
 522
 523   FILE* file = fopen(filename, "w");
 524   xbt_assert(file, "Failed to open %s \n", filename);
 525
 526   if (g->directed)
 527     fprintf(file, "digraph test {\n");
 528   else
 529     fprintf(file, "graph test {\n");
 530
 531   fprintf(file, "  graph [overlap=scale]\n");
 532
 533   fprintf(file, "  node [shape=box, style=filled]\n");
 534   fprintf(file, "  node [width=.3, height=.3, style=filled, color=skyblue]\n\n");
 535
 536   xbt_dynar_foreach (g->nodes, cursor, node) {
 537     fprintf(file, "  \"%s\";\n", instr_node_name(node));
 538   }
 539   xbt_dynar_foreach (g->edges, cursor, edge) {
 540     const char* src_s = instr_node_name(edge->src);
 541     const char* dst_s = instr_node_name(edge->dst);
 542     if (g->directed)
 543       fprintf(file, "  \"%s\" -> \"%s\";\n", src_s, dst_s);
 544     else
 545       fprintf(file, "  \"%s\" -- \"%s\";\n", src_s, dst_s);
 546   }
 547   fprintf(file, "}\n");
 548   fclose(file);
 549 }