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