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 std::string instr_pid(simgrid::s4u::Actor const& proc)
  28 {
  29   return std::string(proc.get_name()) + "-" + std::to_string(proc.get_pid());
  30 }
  31
  32 static const char* instr_node_name(const s_xbt_node_t* node)
  33 {
  34   return static_cast<char*>(xbt_graph_node_get_data(node));
  35 }
  36
  37 static container_t lowestCommonAncestor(const simgrid::instr::Container* a1, const simgrid::instr::Container* a2)
  38 {
  39   // this is only an optimization (since most of a1 and a2 share the same parent)
  40   if (a1->father_ == a2->father_)
  41     return a1->father_;
  42
  43   // create an array with all ancestors of a1
  44   std::vector<container_t> ancestors_a1;
  45   container_t p = a1->father_;
  46   while (p) {
  47     ancestors_a1.push_back(p);
  48     p = p->father_;
  49   }
  50
  51   // create an array with all ancestors of a2
  52   std::vector<container_t> ancestors_a2;
  53   p = a2->father_;
  54   while (p) {
  55     ancestors_a2.push_back(p);
  56     p = p->father_;
  57   }
  58
  59   // find the lowest ancestor
  60   p     = nullptr;
  61   int i = ancestors_a1.size() - 1;
  62   int j = ancestors_a2.size() - 1;
  63   while (i >= 0 && j >= 0) {
  64     container_t a1p = ancestors_a1.at(i);
  65     const simgrid::instr::Container* a2p = ancestors_a2.at(j);
  66     if (a1p == a2p) {
  67       p = a1p;
  68     } else {
  69       break;
  70     }
  71     i--;
  72     j--;
  73   }
  74   return p;
  75 }
  76
  77 static void linkContainers(container_t src, container_t dst, std::set<std::string>* filter)
  78 {
  79   // ignore loopback
  80   if (src->get_name() == "__loopback__" || dst->get_name() == "__loopback__") {
  81     XBT_DEBUG("  linkContainers: ignoring loopback link");
  82     return;
  83   }
  84
  85   // find common father
  86   container_t father = lowestCommonAncestor(src, dst);
  87   if (not father) {
  88     xbt_die("common father unknown, this is a tracing problem");
  89   }
  90
  91   // check if we already register this pair (we only need one direction)
  92   std::string aux1 = src->get_name() + dst->get_name();
  93   std::string aux2 = dst->get_name() + src->get_name();
  94   if (filter->find(aux1) != filter->end()) {
  95     XBT_DEBUG("  linkContainers: already registered %s <-> %s (1)", src->get_cname(), dst->get_cname());
  96     return;
  97   }
  98   if (filter->find(aux2) != filter->end()) {
  99     XBT_DEBUG("  linkContainers: already registered %s <-> %s (2)", dst->get_cname(), src->get_cname());
 100     return;
 101   }
 102
 103   // ok, not found, register it
 104   filter->insert(aux1);
 105   filter->insert(aux2);
 106
 107   // declare type
 108   std::string link_typename = father->type_->get_name() + "-" + src->type_->get_name() +
 109                               std::to_string(src->type_->get_id()) + "-" + dst->type_->get_name() +
 110                               std::to_string(dst->type_->get_id());
 111   simgrid::instr::LinkType* link = father->type_->by_name_or_create(link_typename, src->type_, dst->type_);
 112   link->set_calling_container(father);
 113
 114   // create the link
 115   static long long counter = 0;
 116
 117   std::string key = std::to_string(counter);
 118   counter++;
 119
 120   link->start_event(src, "topology", key);
 121   link->end_event(dst, "topology", key);
 122
 123   XBT_DEBUG("  linkContainers %s <-> %s", src->get_cname(), dst->get_cname());
 124 }
 125
 126 static void recursiveGraphExtraction(const simgrid::s4u::NetZone* netzone, container_t container,
 127                                      std::set<std::string>* filter)
 128 {
 129   if (not TRACE_platform_topology()) {
 130     XBT_DEBUG("Graph extraction disabled by user.");
 131     return;
 132   }
 133   XBT_DEBUG("Graph extraction for NetZone = %s", netzone->get_cname());
 134   if (not netzone->get_children().empty()) {
 135     // bottom-up recursion
 136     for (auto const& nz_son : netzone->get_children()) {
 137       container_t child_container = container->children_.at(nz_son->get_name());
 138       recursiveGraphExtraction(nz_son, child_container, filter);
 139     }
 140   }
 141
 142   xbt_graph_t graph                        = xbt_graph_new_graph(0, nullptr);
 143   std::map<std::string, xbt_node_t>* nodes = new std::map<std::string, xbt_node_t>();
 144   std::map<std::string, xbt_edge_t>* edges = new std::map<std::string, xbt_edge_t>();
 145
 146   netzone->get_impl()->get_graph(graph, nodes, edges);
 147   for (auto elm : *edges) {
 148     const xbt_edge* edge = elm.second;
 149     linkContainers(simgrid::instr::Container::by_name(static_cast<const char*>(edge->src->data)),
 150                    simgrid::instr::Container::by_name(static_cast<const char*>(edge->dst->data)), filter);
 151   }
 152   delete nodes;
 153   delete edges;
 154   xbt_graph_free_graph(graph, xbt_free_f, xbt_free_f, nullptr);
 155 }
 156
 157 /*
 158  * Callbacks
 159  */
 160 static void instr_netzone_on_creation(simgrid::s4u::NetZone const& netzone)
 161 {
 162   std::string id = netzone.get_name();
 163   if (simgrid::instr::Container::get_root() == nullptr) {
 164     simgrid::instr::NetZoneContainer* root = new simgrid::instr::NetZoneContainer(id, 0, nullptr);
 165     xbt_assert(simgrid::instr::Container::get_root() == root);
 166
 167     if (TRACE_smpi_is_enabled()) {
 168       simgrid::instr::ContainerType* mpi = root->type_->by_name_or_create<simgrid::instr::ContainerType>("MPI");
 169       if (not TRACE_smpi_is_grouped())
 170         mpi->by_name_or_create<simgrid::instr::StateType>("MPI_STATE");
 171       root->type_->by_name_or_create("MPI_LINK", mpi, mpi);
 172       // TODO See if we can move this to the LoadBalancer plugin
 173       root->type_->by_name_or_create("MIGRATE_LINK", mpi, mpi);
 174       mpi->by_name_or_create<simgrid::instr::StateType>("MIGRATE_STATE");
 175     }
 176
 177     if (TRACE_needs_platform()) {
 178       currentContainer.push_back(root);
 179     }
 180     return;
 181   }
 182
 183   if (TRACE_needs_platform()) {
 184     simgrid::instr::NetZoneContainer* container =
 185         new simgrid::instr::NetZoneContainer(id, currentContainer.size(), currentContainer.back());
 186     currentContainer.push_back(container);
 187   }
 188 }
 189
 190 static void instr_link_on_creation(simgrid::s4u::Link const& link)
 191 {
 192   if (currentContainer.empty()) // No ongoing parsing. Are you creating the loopback?
 193     return;
 194
 195   container_t container = new simgrid::instr::Container(link.get_name(), "LINK", currentContainer.back());
 196
 197   if ((TRACE_categorized() || TRACE_uncategorized() || TRACE_platform()) && (not TRACE_disable_link())) {
 198     simgrid::instr::VariableType* bandwidth = container->type_->by_name_or_create("bandwidth", "");
 199     bandwidth->set_calling_container(container);
 200     bandwidth->set_event(0, link.get_bandwidth());
 201     simgrid::instr::VariableType* latency = container->type_->by_name_or_create("latency", "");
 202     latency->set_calling_container(container);
 203     latency->set_event(0, link.get_latency());
 204   }
 205   if (TRACE_uncategorized()) {
 206     container->type_->by_name_or_create("bandwidth_used", "0.5 0.5 0.5");
 207   }
 208 }
 209
 210 static void instr_host_on_creation(simgrid::s4u::Host const& host)
 211 {
 212   simgrid::instr::Container* container  = new simgrid::instr::HostContainer(host, currentContainer.back());
 213   const simgrid::instr::Container* root = simgrid::instr::Container::get_root();
 214
 215   if ((TRACE_categorized() || TRACE_uncategorized() || TRACE_platform()) && (not TRACE_disable_speed())) {
 216     simgrid::instr::VariableType* speed = container->type_->by_name_or_create("speed", "");
 217     speed->set_calling_container(container);
 218     speed->set_event(0, host.get_speed());
 219
 220     simgrid::instr::VariableType* cores = container->type_->by_name_or_create("core_count", "");
 221     cores->set_calling_container(container);
 222     cores->set_event(0, host.get_core_count());
 223   }
 224
 225   if (TRACE_uncategorized())
 226     container->type_->by_name_or_create("speed_used", "0.5 0.5 0.5");
 227
 228   if (TRACE_smpi_is_enabled() && TRACE_smpi_is_grouped()) {
 229     simgrid::instr::ContainerType* mpi = container->type_->by_name_or_create<simgrid::instr::ContainerType>("MPI");
 230     mpi->by_name_or_create<simgrid::instr::StateType>("MPI_STATE");
 231     // TODO See if we can move this to the LoadBalancer plugin
 232     root->type_->by_name_or_create("MIGRATE_LINK", mpi, mpi);
 233     mpi->by_name_or_create<simgrid::instr::StateType>("MIGRATE_STATE");
 234   }
 235 }
 236
 237 static void instr_host_on_speed_change(simgrid::s4u::Host const& host)
 238 {
 239   simgrid::instr::Container::by_name(host.get_name())
 240       ->get_variable("speed")
 241       ->set_event(surf_get_clock(), host.get_core_count() * host.get_available_speed());
 242 }
 243
 244 static void instr_action_on_state_change(simgrid::kernel::resource::Action const& action,
 245                                          simgrid::kernel::resource::Action::State /* previous */)
 246 {
 247   int n = action.get_variable()->get_number_of_constraint();
 248
 249   for (int i = 0; i < n; i++) {
 250     double value = action.get_variable()->get_value() * action.get_variable()->get_constraint_weight(i);
 251     /* Beware of composite actions: ptasks put links and cpus together. Extra pb: we cannot dynamic_cast from void* */
 252     simgrid::kernel::resource::Resource* resource = action.get_variable()->get_constraint(i)->get_id();
 253     const simgrid::kernel::resource::Cpu* cpu     = dynamic_cast<simgrid::kernel::resource::Cpu*>(resource);
 254
 255     if (cpu != nullptr)
 256       TRACE_surf_resource_set_utilization("HOST", "speed_used", cpu->get_cname(), action.get_category(), value,
 257                                           action.get_last_update(), SIMIX_get_clock() - action.get_last_update());
 258
 259     const simgrid::kernel::resource::LinkImpl* link = dynamic_cast<simgrid::kernel::resource::LinkImpl*>(resource);
 260
 261     if (link != nullptr)
 262       TRACE_surf_resource_set_utilization("LINK", "bandwidth_used", link->get_cname(), action.get_category(), value,
 263                                           action.get_last_update(), SIMIX_get_clock() - action.get_last_update());
 264   }
 265 }
 266
 267 static void instr_link_on_bandwidth_change(simgrid::s4u::Link const& link)
 268 {
 269   simgrid::instr::Container::by_name(link.get_name())
 270       ->get_variable("bandwidth")
 271       ->set_event(surf_get_clock(), sg_bandwidth_factor * link.get_bandwidth());
 272 }
 273
 274 static void instr_netpoint_on_creation(simgrid::kernel::routing::NetPoint const& netpoint)
 275 {
 276   if (netpoint.is_router())
 277     new simgrid::instr::RouterContainer(netpoint.get_name(), currentContainer.back());
 278 }
 279
 280 static void instr_on_platform_created()
 281 {
 282   currentContainer.clear();
 283   std::set<std::string>* filter = new std::set<std::string>();
 284   XBT_DEBUG("Starting graph extraction.");
 285   recursiveGraphExtraction(simgrid::s4u::Engine::get_instance()->get_netzone_root(),
 286                            simgrid::instr::Container::get_root(), filter);
 287   XBT_DEBUG("Graph extraction finished.");
 288   delete filter;
 289   TRACE_paje_dump_buffer(true);
 290 }
 291
 292 static void instr_actor_on_creation(simgrid::s4u::Actor const& actor)
 293 {
 294   const simgrid::instr::Container* root = simgrid::instr::Container::get_root();
 295   simgrid::instr::Container* container  = simgrid::instr::Container::by_name(actor.get_host()->get_name());
 296
 297   container->create_child(instr_pid(actor), "ACTOR");
 298   simgrid::instr::ContainerType* actor_type =
 299       container->type_->by_name_or_create<simgrid::instr::ContainerType>("ACTOR");
 300   simgrid::instr::StateType* state = actor_type->by_name_or_create<simgrid::instr::StateType>("ACTOR_STATE");
 301   state->add_entity_value("suspend", "1 0 1");
 302   state->add_entity_value("sleep", "1 1 0");
 303   state->add_entity_value("receive", "1 0 0");
 304   state->add_entity_value("send", "0 0 1");
 305   state->add_entity_value("execute", "0 1 1");
 306   root->type_->by_name_or_create("ACTOR_LINK", actor_type, actor_type);
 307   root->type_->by_name_or_create("ACTOR_TASK_LINK", actor_type, actor_type);
 308
 309   std::string container_name = instr_pid(actor);
 310   actor.on_exit([container_name](bool failed) {
 311     if (failed)
 312       // kill means that this actor no longer exists, let's destroy it
 313       simgrid::instr::Container::by_name(container_name)->remove_from_parent();
 314   });
 315 }
 316
 317 static void instr_actor_on_host_change(simgrid::s4u::Actor const& actor,
 318                                        simgrid::s4u::Host const& /*previous_location*/)
 319 {
 320   static long long int counter = 0;
 321   container_t container = simgrid::instr::Container::by_name(instr_pid(actor));
 322   simgrid::instr::LinkType* link = simgrid::instr::Container::get_root()->get_link("ACTOR_LINK");
 323
 324   // start link
 325   link->start_event(container, "M", std::to_string(counter));
 326   // destroy existing container of this process
 327   container->remove_from_parent();
 328   // create new container on the new_host location
 329   simgrid::instr::Container::by_name(actor.get_host()->get_name())->create_child(instr_pid(actor), "ACTOR");
 330   // end link
 331   link->end_event(simgrid::instr::Container::by_name(instr_pid(actor)), "M", std::to_string(counter));
 332   counter++;
 333 }
 334
 335 static void instr_vm_on_creation(simgrid::s4u::Host const& host)
 336 {
 337   const simgrid::instr::Container* container = new simgrid::instr::HostContainer(host, currentContainer.back());
 338   const simgrid::instr::Container* root      = simgrid::instr::Container::get_root();
 339   simgrid::instr::ContainerType* vm = container->type_->by_name_or_create<simgrid::instr::ContainerType>("VM");
 340   simgrid::instr::StateType* state  = vm->by_name_or_create<simgrid::instr::StateType>("VM_STATE");
 341   state->add_entity_value("suspend", "1 0 1");
 342   state->add_entity_value("sleep", "1 1 0");
 343   state->add_entity_value("receive", "1 0 0");
 344   state->add_entity_value("send", "0 0 1");
 345   state->add_entity_value("execute", "0 1 1");
 346   root->type_->by_name_or_create("VM_LINK", vm, vm);
 347   root->type_->by_name_or_create("VM_ACTOR_LINK", vm, vm);
 348 }
 349
 350 void instr_define_callbacks()
 351 {
 352   // always need the callbacks to zones (we need only the root zone), to create the rootContainer and the rootType
 353   // properly
 354   if (TRACE_needs_platform()) {
 355     simgrid::s4u::Engine::on_platform_created.connect(instr_on_platform_created);
 356     simgrid::s4u::Host::on_creation.connect(instr_host_on_creation);
 357     simgrid::s4u::Host::on_speed_change.connect(instr_host_on_speed_change);
 358     simgrid::s4u::Link::on_creation.connect(instr_link_on_creation);
 359     simgrid::s4u::Link::on_bandwidth_change.connect(instr_link_on_bandwidth_change);
 360     simgrid::s4u::NetZone::on_seal.connect(
 361         [](simgrid::s4u::NetZone const& /*netzone*/) { currentContainer.pop_back(); });
 362     simgrid::kernel::routing::NetPoint::on_creation.connect(instr_netpoint_on_creation);
 363   }
 364   simgrid::s4u::NetZone::on_creation.connect(instr_netzone_on_creation);
 365
 366   simgrid::kernel::resource::CpuAction::on_state_change.connect(instr_action_on_state_change);
 367   simgrid::s4u::Link::on_communication_state_change.connect(instr_action_on_state_change);
 368
 369   if (TRACE_actor_is_enabled()) {
 370     simgrid::s4u::Actor::on_creation.connect(instr_actor_on_creation);
 371     simgrid::s4u::Actor::on_destruction.connect([](simgrid::s4u::Actor const& actor) {
 372       auto container = simgrid::instr::Container::by_name_or_null(instr_pid(actor));
 373       if (container != nullptr)
 374         container->remove_from_parent();
 375     });
 376     simgrid::s4u::Actor::on_suspend.connect([](simgrid::s4u::Actor const& actor) {
 377       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("suspend");
 378     });
 379     simgrid::s4u::Actor::on_resume.connect([](simgrid::s4u::Actor const& actor) {
 380       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 381     });
 382     simgrid::s4u::Actor::on_sleep.connect([](simgrid::s4u::Actor const& actor) {
 383       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("sleep");
 384     });
 385     simgrid::s4u::Actor::on_wake_up.connect([](simgrid::s4u::Actor const& actor) {
 386       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 387     });
 388     simgrid::s4u::Exec::on_start.connect([](simgrid::s4u::Actor const& actor, simgrid::s4u::Exec const&) {
 389       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("execute");
 390     });
 391     simgrid::s4u::Exec::on_completion.connect([](simgrid::s4u::Actor const& actor, simgrid::s4u::Exec const&) {
 392       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 393     });
 394     simgrid::s4u::Comm::on_sender_start.connect([](simgrid::s4u::Actor const& actor) {
 395       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("send");
 396     });
 397     simgrid::s4u::Comm::on_receiver_start.connect([](simgrid::s4u::Actor const& actor) {
 398       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->push_event("receive");
 399     });
 400     simgrid::s4u::Comm::on_completion.connect([](simgrid::s4u::Actor const& actor) {
 401       simgrid::instr::Container::by_name(instr_pid(actor))->get_state("ACTOR_STATE")->pop_event();
 402     });
 403     simgrid::s4u::Actor::on_host_change.connect(instr_actor_on_host_change);
 404   }
 405
 406   if (TRACE_vm_is_enabled()) {
 407     simgrid::s4u::Host::on_creation.connect(instr_vm_on_creation);
 408     simgrid::s4u::VirtualMachine::on_start.connect([](simgrid::s4u::VirtualMachine const& vm) {
 409       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->push_event("start");
 410     });
 411     simgrid::s4u::VirtualMachine::on_started.connect([](simgrid::s4u::VirtualMachine const& vm) {
 412       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->pop_event();
 413     });
 414     simgrid::s4u::VirtualMachine::on_suspend.connect([](simgrid::s4u::VirtualMachine const& vm) {
 415       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->push_event("suspend");
 416     });
 417     simgrid::s4u::VirtualMachine::on_resume.connect([](simgrid::s4u::VirtualMachine const& vm) {
 418       simgrid::instr::Container::by_name(vm.get_name())->get_state("VM_STATE")->pop_event();
 419     });
 420     simgrid::s4u::Host::on_destruction.connect([](simgrid::s4u::Host const& host) {
 421       simgrid::instr::Container::by_name(host.get_name())->remove_from_parent();
 422     });
 423   }
 424 }
 425 /*
 426  * user categories support
 427  */
 428 static void recursiveNewVariableType(const std::string& new_typename, const std::string& color,
 429                                      simgrid::instr::Type* root)
 430 {
 431   if (root->get_name() == "HOST" || root->get_name() == "VM")
 432     root->by_name_or_create(std::string("p") + new_typename, color);
 433
 434   if (root->get_name() == "LINK")
 435     root->by_name_or_create(std::string("b") + new_typename, color);
 436
 437   for (auto const& elm : root->children_) {
 438     recursiveNewVariableType(new_typename, color, elm.second.get());
 439   }
 440 }
 441
 442 void instr_new_variable_type(const std::string& new_typename, const std::string& color)
 443 {
 444   recursiveNewVariableType(new_typename, color, simgrid::instr::Container::get_root()->type_);
 445 }
 446
 447 static void recursiveNewUserVariableType(const std::string& father_type, const std::string& new_typename,
 448                                          const std::string& color, simgrid::instr::Type* root)
 449 {
 450   if (root->get_name() == father_type) {
 451     root->by_name_or_create(new_typename, color);
 452   }
 453   for (auto const& elm : root->children_)
 454     recursiveNewUserVariableType(father_type, new_typename, color, elm.second.get());
 455 }
 456
 457 void instr_new_user_variable_type(const std::string& father_type, const std::string& new_typename,
 458                                   const std::string& color)
 459 {
 460   recursiveNewUserVariableType(father_type, new_typename, color, simgrid::instr::Container::get_root()->type_);
 461 }
 462
 463 static void recursiveNewUserStateType(const std::string& father_type, const std::string& new_typename,
 464                                       simgrid::instr::Type* root)
 465 {
 466   if (root->get_name() == father_type)
 467     root->by_name_or_create<simgrid::instr::StateType>(new_typename);
 468
 469   for (auto const& elm : root->children_)
 470     recursiveNewUserStateType(father_type, new_typename, elm.second.get());
 471 }
 472
 473 void instr_new_user_state_type(const std::string& father_type, const std::string& new_typename)
 474 {
 475   recursiveNewUserStateType(father_type, new_typename, simgrid::instr::Container::get_root()->type_);
 476 }
 477
 478 static void recursiveNewValueForUserStateType(const std::string& type_name, const char* val, const std::string& color,
 479                                               simgrid::instr::Type* root)
 480 {
 481   if (root->get_name() == type_name)
 482     static_cast<simgrid::instr::StateType*>(root)->add_entity_value(val, color);
 483
 484   for (auto const& elm : root->children_)
 485     recursiveNewValueForUserStateType(type_name, val, color, elm.second.get());
 486 }
 487
 488 void instr_new_value_for_user_state_type(const std::string& type_name, const char* value, const std::string& color)
 489 {
 490   recursiveNewValueForUserStateType(type_name, value, color, simgrid::instr::Container::get_root()->type_);
 491 }
 492
 493 #define GRAPHICATOR_SUPPORT_FUNCTIONS
 494
 495 static void recursiveXBTGraphExtraction(const s_xbt_graph_t* graph, std::map<std::string, xbt_node_t>* nodes,
 496                                         std::map<std::string, xbt_edge_t>* edges, const_sg_netzone_t netzone,
 497                                         container_t container)
 498 {
 499   if (not netzone->get_children().empty()) {
 500     // bottom-up recursion
 501     for (auto const& netzone_child : netzone->get_children()) {
 502       container_t child_container = container->children_.at(netzone_child->get_name());
 503       recursiveXBTGraphExtraction(graph, nodes, edges, netzone_child, child_container);
 504     }
 505   }
 506
 507   netzone->get_impl()->get_graph(graph, nodes, edges);
 508 }
 509
 510 xbt_graph_t instr_routing_platform_graph()
 511 {
 512   xbt_graph_t ret                          = xbt_graph_new_graph(0, nullptr);
 513   std::map<std::string, xbt_node_t>* nodes = new std::map<std::string, xbt_node_t>();
 514   std::map<std::string, xbt_edge_t>* edges = new std::map<std::string, xbt_edge_t>();
 515   recursiveXBTGraphExtraction(ret, nodes, edges, simgrid::s4u::Engine::get_instance()->get_netzone_root(),
 516                               simgrid::instr::Container::get_root());
 517   delete nodes;
 518   delete edges;
 519   return ret;
 520 }
 521
 522 void instr_routing_platform_graph_export_graphviz(const s_xbt_graph_t* g, const char* filename)
 523 {
 524   unsigned int cursor = 0;
 525   xbt_node_t node     = nullptr;
 526   xbt_edge_t edge     = nullptr;
 527
 528   FILE* file = fopen(filename, "w");
 529   xbt_assert(file, "Failed to open %s \n", filename);
 530
 531   if (g->directed)
 532     fprintf(file, "digraph test {\n");
 533   else
 534     fprintf(file, "graph test {\n");
 535
 536   fprintf(file, "  graph [overlap=scale]\n");
 537
 538   fprintf(file, "  node [shape=box, style=filled]\n");
 539   fprintf(file, "  node [width=.3, height=.3, style=filled, color=skyblue]\n\n");
 540
 541   xbt_dynar_foreach (g->nodes, cursor, node) {
 542     fprintf(file, "  \"%s\";\n", instr_node_name(node));
 543   }
 544   xbt_dynar_foreach (g->edges, cursor, edge) {
 545     const char* src_s = instr_node_name(edge->src);
 546     const char* dst_s = instr_node_name(edge->dst);
 547     if (g->directed)
 548       fprintf(file, "  \"%s\" -> \"%s\";\n", src_s, dst_s);
 549     else
 550       fprintf(file, "  \"%s\" -- \"%s\";\n", src_s, dst_s);
 551   }
 552   fprintf(file, "}\n");
 553   fclose(file);
 554 }