src/surf/sg_platf.cpp

   1 /* Copyright (c) 2006-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "xbt/misc.h"
   8 #include "xbt/log.h"
   9 #include "xbt/str.h"
  10 #include "xbt/dict.h"
  11 #include "xbt/RngStream.h"
  12 #include <xbt/functional.hpp>
  13 #include <xbt/signal.hpp>
  14 #include "src/surf/HostImpl.hpp"
  15 #include "surf/surf.h"
  16
  17 #include "src/simix/smx_private.h"
  18
  19 #include "src/include/simgrid/sg_config.h"
  20 #include "src/surf/xml/platf_private.hpp"
  21
  22 #include "src/surf/HostImpl.hpp"
  23 #include "src/surf/cpu_interface.hpp"
  24 #include "src/surf/network_interface.hpp"
  25 #include "surf/surf_routing.h" // FIXME: brain dead public header
  26
  27 #include "src/kernel/routing/AsImpl.hpp"
  28 #include "src/kernel/routing/AsCluster.hpp"
  29 #include "src/kernel/routing/AsClusterTorus.hpp"
  30 #include "src/kernel/routing/AsClusterFatTree.hpp"
  31 #include "src/kernel/routing/AsClusterDragonfly.hpp"
  32 #include "src/kernel/routing/AsDijkstra.hpp"
  33 #include "src/kernel/routing/AsFloyd.hpp"
  34 #include "src/kernel/routing/AsFull.hpp"
  35 #include "src/kernel/routing/AsNone.hpp"
  36 #include "src/kernel/routing/AsVivaldi.hpp"
  37
  38 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  39
  40 XBT_PRIVATE xbt_dynar_t mount_list = nullptr;
  41
  42 namespace simgrid {
  43 namespace surf {
  44
  45 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
  46 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  47 simgrid::xbt::signal<void(void)> on_postparse;
  48
  49 }
  50 }
  51
  52 static int surf_parse_models_setup_already_called = 0;
  53
  54 /** The current AS in the parsing */
  55 static simgrid::kernel::routing::AsImpl *current_routing = nullptr;
  56 static simgrid::kernel::routing::AsImpl *routing_get_current()
  57 {
  58   return current_routing;
  59 }
  60
  61 /** Module management function: creates all internal data structures */
  62 void sg_platf_init() {
  63 }
  64
  65 /** Module management function: frees all internal data structures */
  66 void sg_platf_exit() {
  67   simgrid::surf::on_link.disconnect_all_slots();
  68   simgrid::surf::on_cluster.disconnect_all_slots();
  69   simgrid::surf::on_postparse.disconnect_all_slots();
  70
  71   /* make sure that we will reinit the models while loading the platf once reinited */
  72   surf_parse_models_setup_already_called = 0;
  73   surf_parse_lex_destroy();
  74 }
  75
  76 /** @brief Add an host to the current AS */
  77 void sg_platf_new_host(sg_platf_host_cbarg_t args)
  78 {
  79   simgrid::s4u::Host* host = routing_get_current()->createHost(args->id, &args->speed_per_pstate, args->core_amount);
  80
  81   new simgrid::surf::HostImpl(host, mount_list);
  82   xbt_lib_set(storage_lib, args->id, ROUTING_STORAGE_HOST_LEVEL, static_cast<void*>(mount_list));
  83   mount_list = nullptr;
  84
  85   if (args->properties) {
  86     xbt_dict_cursor_t cursor=nullptr;
  87     char *key,*data;
  88     xbt_dict_foreach (args->properties, cursor, key, data)
  89       host->setProperty(key, data);
  90     xbt_dict_free(&args->properties);
  91   }
  92
  93   /* Change from the defaults */
  94   if (args->state_trace)
  95     host->pimpl_cpu->setStateTrace(args->state_trace);
  96   if (args->speed_trace)
  97     host->pimpl_cpu->setSpeedTrace(args->speed_trace);
  98   if (args->pstate != 0)
  99     host->pimpl_cpu->setPState(args->pstate);
 100   if (args->coord && strcmp(args->coord, ""))
 101     new simgrid::kernel::routing::vivaldi::Coords(host, args->coord);
 102
 103   simgrid::s4u::Host::onCreation(*host);
 104
 105   if (TRACE_is_enabled() && TRACE_needs_platform())
 106     sg_instr_new_host(*host);
 107 }
 108
 109 /** @brief Add a "router" to the network element list */
 110 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 111 {
 112   using simgrid::kernel::routing::AsCluster;
 113   simgrid::kernel::routing::AsImpl* current_routing = routing_get_current();
 114
 115   if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 116     current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::base;
 117   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 118              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 119
 120   simgrid::kernel::routing::NetCard* netcard =
 121     new simgrid::kernel::routing::NetCardImpl(router->id, simgrid::kernel::routing::NetCard::Type::Router, current_routing);
 122   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, netcard);
 123   XBT_DEBUG("Router '%s' has the id %d", router->id, netcard->id());
 124
 125   if (router->coord && strcmp(router->coord, "")) {
 126     unsigned int cursor;
 127     char*str;
 128
 129     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 130     /* Pre-parse the host coordinates */
 131     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 132     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
 133     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
 134     xbt_dynar_foreach(ctn_str,cursor, str) {
 135       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 136       xbt_dynar_push(ctn,&val);
 137     }
 138     xbt_dynar_free(&ctn_str);
 139     xbt_dynar_shrink(ctn, 0);
 140     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 141   }
 142
 143   auto cluster = dynamic_cast<AsCluster*>(current_routing);
 144   if(cluster != nullptr)
 145     cluster->router_ = static_cast<simgrid::kernel::routing::NetCard*>(xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL));
 146
 147   if (TRACE_is_enabled() && TRACE_needs_platform())
 148     sg_instr_new_router(router);
 149 }
 150
 151 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 152   std::vector<char*> names;
 153
 154   if (link->policy == SURF_LINK_FULLDUPLEX) {
 155     names.push_back(bprintf("%s_UP", link->id));
 156     names.push_back(bprintf("%s_DOWN", link->id));
 157   } else {
 158     names.push_back(xbt_strdup(link->id));
 159   }
 160   for (auto link_name : names) {
 161     Link* l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy);
 162
 163     if (link->properties) {
 164       xbt_dict_cursor_t cursor = nullptr;
 165       char *key, *data;
 166       xbt_dict_foreach (link->properties, cursor, key, data)
 167         l->setProperty(key, data);
 168       xbt_dict_free(&link->properties);
 169     }
 170
 171     if (link->latency_trace)
 172       l->setLatencyTrace(link->latency_trace);
 173     if (link->bandwidth_trace)
 174       l->setBandwidthTrace(link->bandwidth_trace);
 175     if (link->state_trace)
 176       l->setStateTrace(link->state_trace);
 177
 178     xbt_free(link_name);
 179   }
 180
 181   simgrid::surf::on_link(link);
 182 }
 183
 184 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 185 {
 186   using simgrid::kernel::routing::AsCluster;
 187   using simgrid::kernel::routing::AsClusterDragonfly;
 188   using simgrid::kernel::routing::AsClusterFatTree;
 189   using simgrid::kernel::routing::AsClusterTorus;
 190
 191   int rankId=0;
 192
 193   s_sg_platf_link_cbarg_t link;
 194
 195   // What an inventive way of initializing the AS that I have as ancestor :-(
 196   s_sg_platf_AS_cbarg_t AS;
 197   AS.id = cluster->id;
 198   switch (cluster->topology) {
 199   case SURF_CLUSTER_TORUS:
 200     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 201     break;
 202   case SURF_CLUSTER_DRAGONFLY:
 203     AS.routing = A_surfxml_AS_routing_ClusterDragonfly;
 204     break;
 205   case SURF_CLUSTER_FAT_TREE:
 206     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 207     break;
 208   default:
 209     AS.routing = A_surfxml_AS_routing_Cluster;
 210     break;
 211   }
 212   sg_platf_new_AS_begin(&AS);
 213   simgrid::kernel::routing::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
 214   current_as->parse_specific_arguments(cluster);
 215
 216   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 217     current_as->linkCountPerNode_++;
 218     current_as->hasLoopback_ = 1;
 219   }
 220
 221   if(cluster->limiter_link!=0){
 222     current_as->linkCountPerNode_++;
 223     current_as->hasLimiter_ = 1;
 224   }
 225
 226   for (int i : *cluster->radicals) {
 227     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 228     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 229
 230     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 231
 232     s_sg_platf_host_cbarg_t host;
 233     memset(&host, 0, sizeof(host));
 234     host.id = host_id;
 235     if ((cluster->properties != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 236       xbt_dict_cursor_t cursor=nullptr;
 237       char *key,*data;
 238       host.properties = xbt_dict_new_homogeneous(free);
 239
 240       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 241         xbt_dict_set(host.properties, key, xbt_strdup(data), nullptr);
 242       }
 243     }
 244
 245     host.speed_per_pstate.push_back(cluster->speed);
 246     host.pstate = 0;
 247     host.core_amount = cluster->core_amount;
 248     host.coord = "";
 249     sg_platf_new_host(&host);
 250     XBT_DEBUG("</host>");
 251
 252     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 253
 254     s_surf_parsing_link_up_down_t info_lim;
 255     s_surf_parsing_link_up_down_t info_loop;
 256     // All links are saved in a matrix;
 257     // every row describes a single node; every node may have multiple links.
 258     // the first column may store a link from x to x if p_has_loopback is set
 259     // the second column may store a limiter link if p_has_limiter is set
 260     // other columns are to store one or more link for the node
 261
 262     //add a loopback link
 263     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 264       char *tmp_link = bprintf("%s_loopback", link_id);
 265       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->loopback_bw);
 266
 267       memset(&link, 0, sizeof(link));
 268       link.id        = tmp_link;
 269       link.bandwidth = cluster->loopback_bw;
 270       link.latency   = cluster->loopback_lat;
 271       link.policy    = SURF_LINK_FATPIPE;
 272       sg_platf_new_link(&link);
 273       info_loop.linkUp = Link::byName(tmp_link);
 274       info_loop.linkDown = Link::byName(tmp_link);
 275       free(tmp_link);
 276
 277       auto as_cluster = static_cast<AsCluster*>(current_as);
 278       as_cluster->privateLinks_.insert({rankId*as_cluster->linkCountPerNode_, info_loop});
 279     }
 280
 281     //add a limiter link (shared link to account for maximal bandwidth of the node)
 282     if(cluster->limiter_link!=0){
 283       char *tmp_link = bprintf("%s_limiter", link_id);
 284       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 285
 286       memset(&link, 0, sizeof(link));
 287       link.id = tmp_link;
 288       link.bandwidth = cluster->limiter_link;
 289       link.latency = 0;
 290       link.policy = SURF_LINK_SHARED;
 291       sg_platf_new_link(&link);
 292       info_lim.linkUp = info_lim.linkDown = Link::byName(tmp_link);
 293       free(tmp_link);
 294       current_as->privateLinks_.insert(
 295           {rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_ , info_lim});
 296     }
 297
 298     //call the cluster function that adds the others links
 299     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 300       static_cast<AsClusterFatTree*>(current_as)->addProcessingNode(i);
 301     }
 302     else {
 303       current_as->create_links_for_node(cluster, i, rankId,
 304           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 305     }
 306     xbt_free(link_id);
 307     xbt_free(host_id);
 308     rankId++;
 309   }
 310
 311   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 312   // and it's very useful to connect clusters together
 313   XBT_DEBUG(" ");
 314   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 315   char *newid = nullptr;
 316   s_sg_platf_router_cbarg_t router;
 317   memset(&router, 0, sizeof(router));
 318   router.id = cluster->router_id;
 319   if (!router.id || !strcmp(router.id, ""))
 320     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 321   sg_platf_new_router(&router);
 322   current_as->router_ = (simgrid::kernel::routing::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 323   free(newid);
 324
 325   //Make the backbone
 326   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 327
 328     memset(&link, 0, sizeof(link));
 329     link.id        = bprintf("%s_backbone", cluster->id);
 330     link.bandwidth = cluster->bb_bw;
 331     link.latency   = cluster->bb_lat;
 332     link.policy    = cluster->bb_sharing_policy;
 333
 334     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 335     sg_platf_new_link(&link);
 336
 337     routing_cluster_add_backbone(Link::byName(link.id));
 338     free((char*)link.id);
 339   }
 340
 341   XBT_DEBUG("</AS>");
 342   sg_platf_new_AS_seal();
 343
 344   simgrid::surf::on_cluster(cluster);
 345   delete cluster->radicals;
 346 }
 347 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 348   simgrid::kernel::routing::AsCluster *cluster = dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 349
 350   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 351   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 352
 353   cluster->backbone_ = bb;
 354   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 355 }
 356
 357 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 358 {
 359   for (int radical : *cabinet->radicals) {
 360     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 361     s_sg_platf_host_cbarg_t host;
 362     memset(&host, 0, sizeof(host));
 363     host.pstate           = 0;
 364     host.core_amount      = 1;
 365     host.id               = hostname;
 366     host.speed_per_pstate.push_back(cabinet->speed);
 367     sg_platf_new_host(&host);
 368
 369     s_sg_platf_link_cbarg_t link;
 370     memset(&link, 0, sizeof(link));
 371     link.policy    = SURF_LINK_FULLDUPLEX;
 372     link.latency   = cabinet->lat;
 373     link.bandwidth = cabinet->bw;
 374     link.id        = bprintf("link_%s",hostname);
 375     sg_platf_new_link(&link);
 376     free((char*)link.id);
 377
 378     s_sg_platf_host_link_cbarg_t host_link;
 379     memset(&host_link, 0, sizeof(host_link));
 380     host_link.id        = hostname;
 381     host_link.link_up   = bprintf("link_%s_UP",hostname);
 382     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 383     sg_platf_new_hostlink(&host_link);
 384     free((char*)host_link.link_up);
 385     free((char*)host_link.link_down);
 386
 387     free(hostname);
 388   }
 389   delete cabinet->radicals;
 390 }
 391
 392 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 393 {
 394   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 395                "Refusing to add a second storage named \"%s\"", storage->id);
 396
 397   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 398   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 399
 400   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 401       storage->id,
 402       storage->type_id,
 403       storage->content);
 404
 405   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 406
 407   // if storage content is not specified use the content of storage_type if any
 408   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 409     storage->content = ((storage_type_t) stype)->content;
 410     storage->content_type = ((storage_type_t) stype)->content_type;
 411     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 412         storage->id,((storage_type_t) stype)->content_type,
 413         ((storage_type_t) stype)->type_id);
 414   }
 415
 416   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 417       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 418       "\n\t\tproperties '%p''\n",
 419       storage->id,
 420       ((storage_type_t) stype)->model,
 421       ((storage_type_t) stype)->type_id,
 422       storage->content,
 423       storage->content_type,
 424     storage->properties);
 425
 426   auto s = surf_storage_model->createStorage(storage->id, ((storage_type_t)stype)->type_id, storage->content,
 427                                              storage->content_type, storage->attach);
 428
 429   if (storage->properties) {
 430     xbt_dict_cursor_t cursor = nullptr;
 431     char *key, *data;
 432     xbt_dict_foreach (storage->properties, cursor, key, data)
 433       s->setProperty(key, data);
 434     xbt_dict_free(&storage->properties);
 435   }
 436 }
 437 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 438
 439   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 440                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 441
 442   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 443   stype->model = xbt_strdup(storage_type->model);
 444   stype->properties = storage_type->properties;
 445   stype->content = xbt_strdup(storage_type->content);
 446   stype->content_type = xbt_strdup(storage_type->content_type);
 447   stype->type_id = xbt_strdup(storage_type->id);
 448   stype->size = storage_type->size;
 449   stype->model_properties = storage_type->model_properties;
 450
 451   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 452       "content '%s', and content_type '%s'",
 453       stype->type_id,
 454       stype->model,
 455       storage_type->content,
 456       storage_type->content_type);
 457
 458   xbt_lib_set(storage_type_lib,
 459       stype->type_id,
 460       ROUTING_STORAGE_TYPE_LEVEL,
 461       (void *) stype);
 462 }
 463
 464 static void mount_free(void *p)
 465 {
 466   mount_t mnt = (mount_t) p;
 467   xbt_free(mnt->name);
 468 }
 469
 470 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 471   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 472       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 473
 474   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 475
 476   s_mount_t mnt;
 477   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 478   mnt.name = xbt_strdup(mount->name);
 479
 480   if(!mount_list){
 481     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 482     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 483   }
 484   xbt_dynar_push(mount_list, &mnt);
 485 }
 486
 487 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 488 {
 489   routing_get_current()->addRoute(route);
 490 }
 491
 492 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 493 {
 494   routing_get_current()->addBypassRoute(bypassRoute);
 495 }
 496
 497 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 498 {
 499   sg_host_t host = sg_host_by_name(process->host);
 500   if (!host) {
 501     // The requested host does not exist. Do a nice message to the user
 502     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 503     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 504     free(tmp);
 505     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 506     simgrid::s4u::Host* host;
 507     unsigned int cursor;
 508     xbt_dynar_foreach(all_hosts,cursor, host) {
 509       xbt_strbuff_append(msg,host->name().c_str());
 510       xbt_strbuff_append(msg,"', '");
 511       if (msg->used > 1024) {
 512         msg->data[msg->used-3]='\0';
 513         msg->used -= 3;
 514
 515         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 516         break;
 517       }
 518     }
 519     msg->data[msg->used-3]='\0';
 520     xbt_die("%s", msg->data);
 521   }
 522   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(process->function);
 523   xbt_assert(factory, "Function '%s' unknown", process->function);
 524
 525   double start_time = process->start_time;
 526   double kill_time  = process->kill_time;
 527   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 528
 529   std::vector<std::string> args(process->argv, process->argv + process->argc);
 530   std::function<void()> code = factory(std::move(args));
 531
 532   smx_process_arg_t arg = nullptr;
 533   smx_actor_t process_created = nullptr;
 534
 535   arg = new simgrid::simix::ProcessArg();
 536   arg->name = std::string(process->argv[0]);
 537   arg->code = code;
 538   arg->data = nullptr;
 539   arg->host = host;
 540   arg->kill_time = kill_time;
 541   arg->properties = current_property_set;
 542
 543   sg_host_simix(host)->boot_processes.push_back(arg);
 544
 545   if (start_time > SIMIX_get_clock()) {
 546
 547     arg = new simgrid::simix::ProcessArg();
 548     arg->name = std::string(process->argv[0]);
 549     arg->code = std::move(code);
 550     arg->data = nullptr;
 551     arg->host = host;
 552     arg->kill_time = kill_time;
 553     arg->properties = current_property_set;
 554
 555     XBT_DEBUG("Process %s@%s will be started at time %f",
 556       arg->name.c_str(), arg->host->name().c_str(), start_time);
 557     SIMIX_timer_set(start_time, [=]() {
 558       simix_global->create_process_function(
 559                                             arg->name.c_str(),
 560                                             std::move(arg->code),
 561                                             arg->data,
 562                                             arg->host,
 563                                             arg->kill_time,
 564                                             arg->properties,
 565                                             arg->auto_restart,
 566                                             nullptr);
 567       delete arg;
 568     });
 569   } else {                      // start_time <= SIMIX_get_clock()
 570     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->cname());
 571
 572     process_created = simix_global->create_process_function(
 573         arg->name.c_str(), std::move(code), nullptr,
 574         host, kill_time,
 575         current_property_set, auto_restart, nullptr);
 576
 577     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 578     if (!process_created) {
 579       return;
 580     }
 581   }
 582   current_property_set = nullptr;
 583 }
 584
 585 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 586 {
 587   using simgrid::kernel::routing::NetCard;
 588   using simgrid::kernel::routing::AsCluster;
 589
 590   char *host_id = bprintf("peer_%s", peer->id);
 591   char *router_id = bprintf("router_%s", peer->id);
 592
 593   XBT_DEBUG(" ");
 594
 595   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 596   s_sg_platf_AS_cbarg_t AS;
 597   AS.id      = peer->id;
 598   AS.routing = A_surfxml_AS_routing_Cluster;
 599   sg_platf_new_AS_begin(&AS);
 600
 601   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 602   s_sg_platf_host_cbarg_t host;
 603   memset(&host, 0, sizeof(host));
 604   host.id = host_id;
 605
 606   host.speed_per_pstate.push_back(peer->speed);
 607   host.pstate = 0;
 608   host.speed_trace = peer->availability_trace;
 609   host.state_trace = peer->state_trace;
 610   host.core_amount = 1;
 611   sg_platf_new_host(&host);
 612
 613   s_sg_platf_link_cbarg_t link;
 614   memset(&link, 0, sizeof(link));
 615   link.policy  = SURF_LINK_SHARED;
 616   link.latency = peer->lat;
 617
 618   char* link_up = bprintf("link_%s_UP",peer->id);
 619   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
 620   link.id = link_up;
 621   link.bandwidth = peer->bw_out;
 622   sg_platf_new_link(&link);
 623
 624   char* link_down = bprintf("link_%s_DOWN",peer->id);
 625   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
 626   link.id = link_down;
 627   link.bandwidth = peer->bw_in;
 628   sg_platf_new_link(&link);
 629
 630   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
 631   s_sg_platf_host_link_cbarg_t host_link;
 632   memset(&host_link, 0, sizeof(host_link));
 633   host_link.id        = host_id;
 634   host_link.link_up   = link_up;
 635   host_link.link_down = link_down;
 636   sg_platf_new_hostlink(&host_link);
 637   free(link_up);
 638   free(link_down);
 639
 640   XBT_DEBUG("<router id=\"%s\"/>", router_id);
 641   s_sg_platf_router_cbarg_t router;
 642   memset(&router, 0, sizeof(router));
 643   router.id = router_id;
 644   router.coord = peer->coord;
 645   sg_platf_new_router(&router);
 646
 647   XBT_DEBUG("</AS>");
 648   sg_platf_new_AS_seal();
 649   XBT_DEBUG(" ");
 650
 651   free(router_id);
 652   free(host_id);
 653 }
 654
 655 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 656
 657 void sg_platf_end() {
 658   simgrid::surf::on_postparse();
 659 }
 660
 661 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 662 static void surf_config_models_setup()
 663 {
 664   const char* host_model_name    = xbt_cfg_get_string("host/model");
 665   const char* vm_model_name      = xbt_cfg_get_string("vm/model");
 666   const char* network_model_name = xbt_cfg_get_string("network/model");
 667   const char* cpu_model_name     = xbt_cfg_get_string("cpu/model");
 668   const char* storage_model_name = xbt_cfg_get_string("storage/model");
 669
 670   /* The compound host model is needed when using non-default net/cpu models */
 671   if ((!xbt_cfg_is_default_value("network/model") || !xbt_cfg_is_default_value("cpu/model")) &&
 672       xbt_cfg_is_default_value("host/model")) {
 673     host_model_name = "compound";
 674     xbt_cfg_set_string("host/model", host_model_name);
 675   }
 676
 677   XBT_DEBUG("host model: %s", host_model_name);
 678   if (!strcmp(host_model_name, "compound")) {
 679     xbt_assert(cpu_model_name, "Set a cpu model to use with the 'compound' host model");
 680     xbt_assert(network_model_name, "Set a network model to use with the 'compound' host model");
 681
 682     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
 683     surf_cpu_model_description[cpu_id].model_init_preparse();
 684
 685     int network_id = find_model_description(surf_network_model_description, network_model_name);
 686     surf_network_model_description[network_id].model_init_preparse();
 687   }
 688
 689   XBT_DEBUG("Call host_model_init");
 690   int host_id = find_model_description(surf_host_model_description, host_model_name);
 691   surf_host_model_description[host_id].model_init_preparse();
 692
 693   XBT_DEBUG("Call vm_model_init");
 694   int vm_id = find_model_description(surf_vm_model_description, vm_model_name);
 695   surf_vm_model_description[vm_id].model_init_preparse();
 696
 697   XBT_DEBUG("Call storage_model_init");
 698   int storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 699   surf_storage_model_description[storage_id].model_init_preparse();
 700 }
 701
 702 /**
 703  * \brief Add an AS to the platform
 704  *
 705  * Add a new autonomous system to the platform. Any elements (such as host,
 706  * router or sub-AS) added after this call and before the corresponding call
 707  * to sg_platf_new_AS_seal() will be added to this AS.
 708  *
 709  * Once this function was called, the configuration concerning the used
 710  * models cannot be changed anymore.
 711  *
 712  * @param AS the parameters defining the AS to build.
 713  */
 714 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 715 {
 716   if (!surf_parse_models_setup_already_called) {
 717     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 718      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 719      *
 720      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 721      * (FIXME: check it out by creating a file beginning with one of these tags)
 722      * but cluster and peer create ASes internally, so putting the code in there is ok.
 723      */
 724     surf_parse_models_setup_already_called = 1;
 725     surf_config_models_setup();
 726   }
 727
 728   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 729                             * any further config now that we created some real content */
 730
 731
 732   /* search the routing model */
 733   simgrid::kernel::routing::AsImpl *new_as = nullptr;
 734   switch(AS->routing){
 735     case A_surfxml_AS_routing_Cluster:
 736       new_as = new simgrid::kernel::routing::AsCluster(current_routing, AS->id);
 737       break;
 738     case A_surfxml_AS_routing_ClusterDragonfly:
 739       new_as = new simgrid::kernel::routing::AsClusterDragonfly(current_routing, AS->id);
 740       break;
 741     case A_surfxml_AS_routing_ClusterTorus:
 742       new_as = new simgrid::kernel::routing::AsClusterTorus(current_routing, AS->id);
 743       break;
 744     case A_surfxml_AS_routing_ClusterFatTree:
 745       new_as = new simgrid::kernel::routing::AsClusterFatTree(current_routing, AS->id);
 746       break;
 747     case A_surfxml_AS_routing_Dijkstra:
 748       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 0);
 749       break;
 750     case A_surfxml_AS_routing_DijkstraCache:
 751       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 1);
 752       break;
 753     case A_surfxml_AS_routing_Floyd:
 754       new_as = new simgrid::kernel::routing::AsFloyd(current_routing, AS->id);
 755       break;
 756     case A_surfxml_AS_routing_Full:
 757       new_as = new simgrid::kernel::routing::AsFull(current_routing, AS->id);
 758       break;
 759     case A_surfxml_AS_routing_None:
 760       new_as = new simgrid::kernel::routing::AsNone(current_routing, AS->id);
 761       break;
 762     case A_surfxml_AS_routing_Vivaldi:
 763       new_as = new simgrid::kernel::routing::AsVivaldi(current_routing, AS->id);
 764       break;
 765     default:
 766       xbt_die("Not a valid model!");
 767       break;
 768   }
 769
 770   if (current_routing == nullptr) { /* it is the first one */
 771     xbt_assert(routing_platf->root_ == nullptr, "All defined components must belong to a AS");
 772     routing_platf->root_ = new_as;
 773
 774   } else {
 775     /* set the father behavior */
 776     if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 777       current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::recursive;
 778     /* add to the sons dictionary */
 779     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, nullptr);
 780   }
 781
 782   /* set the new current component of the tree */
 783   current_routing = new_as;
 784
 785   simgrid::kernel::routing::asCreatedCallbacks(new_as);
 786   if (TRACE_is_enabled())
 787     sg_instr_AS_begin(AS);
 788
 789   return new_as;
 790 }
 791
 792 /**
 793  * \brief Specify that the description of the current AS is finished
 794  *
 795  * Once you've declared all the content of your AS, you have to seal
 796  * it with this call. Your AS is not usable until you call this function.
 797  */
 798 void sg_platf_new_AS_seal()
 799 {
 800   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 801   current_routing->seal();
 802   current_routing = static_cast<simgrid::kernel::routing::AsImpl*>(current_routing->father());
 803
 804   if (TRACE_is_enabled())
 805     sg_instr_AS_end();
 806 }
 807
 808 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 809 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 810 {
 811   simgrid::kernel::routing::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 812   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 813   xbt_assert(dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing),
 814       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 815
 816   s_surf_parsing_link_up_down_t link_up_down;
 817   link_up_down.linkUp = Link::byName(hostlink->link_up);
 818   link_up_down.linkDown = Link::byName(hostlink->link_down);
 819
 820   xbt_assert(link_up_down.linkUp, "Link '%s' not found!",hostlink->link_up);
 821   xbt_assert(link_up_down.linkDown, "Link '%s' not found!",hostlink->link_down);
 822
 823   auto as_cluster = static_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 824
 825   if (as_cluster->privateLinks_.find(netcard->id()) != as_cluster->privateLinks_.end())
 826     surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
 827
 828   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name().c_str(), netcard->id());
 829   as_cluster->privateLinks_.insert({netcard->id(), link_up_down});
 830 }