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