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/cpu_interface.hpp"
  23 #include "src/surf/network_interface.hpp"
  24 #include "surf/surf_routing.h" // FIXME: brain dead public header
  25
  26 #include "src/kernel/routing/AsImpl.hpp"
  27 #include "src/kernel/routing/AsCluster.hpp"
  28 #include "src/kernel/routing/AsClusterTorus.hpp"
  29 #include "src/kernel/routing/AsClusterFatTree.hpp"
  30 #include "src/kernel/routing/AsClusterDragonfly.hpp"
  31 #include "src/kernel/routing/AsDijkstra.hpp"
  32 #include "src/kernel/routing/AsFloyd.hpp"
  33 #include "src/kernel/routing/AsFull.hpp"
  34 #include "src/kernel/routing/AsNone.hpp"
  35 #include "src/kernel/routing/AsVivaldi.hpp"
  36
  37 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  38
  39 XBT_PRIVATE xbt_dynar_t mount_list = nullptr;
  40
  41 namespace simgrid {
  42 namespace surf {
  43
  44 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
  45 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  46 simgrid::xbt::signal<void(void)> on_postparse;
  47
  48 }
  49 }
  50
  51 static int surf_parse_models_setup_already_called = 0;
  52
  53 /** The current AS in the parsing */
  54 static simgrid::kernel::routing::AsImpl *current_routing = nullptr;
  55 static simgrid::kernel::routing::AsImpl *routing_get_current()
  56 {
  57   return current_routing;
  58 }
  59
  60 /** Module management function: creates all internal data structures */
  61 void sg_platf_init() {
  62 }
  63
  64 /** Module management function: frees all internal data structures */
  65 void sg_platf_exit() {
  66   simgrid::surf::on_link.disconnect_all_slots();
  67   simgrid::surf::on_cluster.disconnect_all_slots();
  68   simgrid::surf::on_postparse.disconnect_all_slots();
  69
  70   /* make sure that we will reinit the models while loading the platf once reinited */
  71   surf_parse_models_setup_already_called = 0;
  72   surf_parse_lex_destroy();
  73 }
  74
  75 /** @brief Add an host to the current AS */
  76 void sg_platf_new_host(sg_platf_host_cbarg_t host)
  77 {
  78   simgrid::kernel::routing::AsImpl* current_routing = routing_get_current();
  79   if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
  80     current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::base;
  81
  82   simgrid::kernel::routing::NetCard *netcard =
  83       new simgrid::kernel::routing::NetCardImpl(host->id, simgrid::kernel::routing::NetCard::Type::Host, current_routing);
  84
  85   simgrid::s4u::Host* h = new simgrid::s4u::Host(host->id);
  86   h->pimpl_netcard = netcard;
  87
  88   if (host->coord && strcmp(host->coord, "")) {
  89     unsigned int cursor;
  90     char*str;
  91
  92     xbt_assert(COORD_HOST_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
  93     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
  94     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
  95     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", host->id);
  96
  97     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
  98     xbt_dynar_foreach(ctn_str,cursor, str) {
  99       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 100       xbt_dynar_push(ctn,&val);
 101     }
 102     xbt_dynar_free(&ctn_str);
 103     xbt_dynar_shrink(ctn, 0);
 104     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
 105   }
 106
 107   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h, &host->speed_per_pstate, host->core_amount);
 108   if (host->state_trace)
 109     cpu->setStateTrace(host->state_trace);
 110   if (host->speed_trace)
 111     cpu->setSpeedTrace(host->speed_trace);
 112
 113   surf_host_model->createHost(host->id, cpu, netcard, mount_list)->attach(h);
 114   mount_list = nullptr;
 115
 116   if (host->properties) {
 117     xbt_dict_cursor_t cursor=nullptr;
 118     char *key,*data;
 119     xbt_dict_foreach(host->properties,cursor,key,data)
 120       h->setProperty(key,data);
 121     xbt_dict_free(&host->properties);
 122   }
 123
 124   if (host->pstate != 0)
 125     cpu->setPState(host->pstate);
 126
 127   simgrid::s4u::Host::onCreation(*h);
 128
 129   if (TRACE_is_enabled() && TRACE_needs_platform())
 130     sg_instr_new_host(host);
 131 }
 132
 133 /** @brief Add a "router" to the network element list */
 134 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 135 {
 136   using simgrid::kernel::routing::AsCluster;
 137   simgrid::kernel::routing::AsImpl* current_routing = routing_get_current();
 138
 139   if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 140     current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::base;
 141   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 142              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 143
 144   simgrid::kernel::routing::NetCard* netcard =
 145     new simgrid::kernel::routing::NetCardImpl(router->id, simgrid::kernel::routing::NetCard::Type::Router, current_routing);
 146   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, netcard);
 147   XBT_DEBUG("Router '%s' has the id %d", router->id, netcard->id());
 148
 149   if (router->coord && strcmp(router->coord, "")) {
 150     unsigned int cursor;
 151     char*str;
 152
 153     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 154     /* Pre-parse the host coordinates */
 155     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 156     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
 157     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
 158     xbt_dynar_foreach(ctn_str,cursor, str) {
 159       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 160       xbt_dynar_push(ctn,&val);
 161     }
 162     xbt_dynar_free(&ctn_str);
 163     xbt_dynar_shrink(ctn, 0);
 164     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 165   }
 166
 167   auto cluster = dynamic_cast<AsCluster*>(current_routing);
 168   if(cluster != nullptr)
 169     cluster->router_ = static_cast<simgrid::kernel::routing::NetCard*>(xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL));
 170
 171   if (TRACE_is_enabled() && TRACE_needs_platform())
 172     sg_instr_new_router(router);
 173 }
 174
 175 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 176   std::vector<char*> names;
 177
 178   if (link->policy == SURF_LINK_FULLDUPLEX) {
 179     names.push_back(bprintf("%s_UP", link->id));
 180     names.push_back(bprintf("%s_DOWN", link->id));
 181   } else {
 182     names.push_back(xbt_strdup(link->id));
 183   }
 184   for (auto link_name : names) {
 185     Link *l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy, link->properties);
 186
 187     if (link->latency_trace)
 188       l->setLatencyTrace(link->latency_trace);
 189     if (link->bandwidth_trace)
 190       l->setBandwidthTrace(link->bandwidth_trace);
 191     if (link->state_trace)
 192       l->setStateTrace(link->state_trace);
 193
 194     xbt_free(link_name);
 195   }
 196
 197   simgrid::surf::on_link(link);
 198 }
 199
 200 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 201 {
 202   using simgrid::kernel::routing::AsCluster;
 203   using simgrid::kernel::routing::AsClusterDragonfly;
 204   using simgrid::kernel::routing::AsClusterFatTree;
 205   using simgrid::kernel::routing::AsClusterTorus;
 206
 207   int rankId=0;
 208
 209   s_sg_platf_link_cbarg_t link;
 210
 211   // What an inventive way of initializing the AS that I have as ancestor :-(
 212   s_sg_platf_AS_cbarg_t AS;
 213   AS.id = cluster->id;
 214   switch (cluster->topology) {
 215   case SURF_CLUSTER_TORUS:
 216     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 217     break;
 218   case SURF_CLUSTER_DRAGONFLY:
 219     AS.routing = A_surfxml_AS_routing_ClusterDragonfly;
 220     break;
 221   case SURF_CLUSTER_FAT_TREE:
 222     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 223     break;
 224   default:
 225     AS.routing = A_surfxml_AS_routing_Cluster;
 226     break;
 227   }
 228   sg_platf_new_AS_begin(&AS);
 229   simgrid::kernel::routing::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
 230   current_as->parse_specific_arguments(cluster);
 231
 232   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 233     current_as->linkCountPerNode_++;
 234     current_as->hasLoopback_ = 1;
 235   }
 236
 237   if(cluster->limiter_link!=0){
 238     current_as->linkCountPerNode_++;
 239     current_as->hasLimiter_ = 1;
 240   }
 241
 242   for (int i : *cluster->radicals) {
 243     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 244     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 245
 246     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 247
 248     s_sg_platf_host_cbarg_t host;
 249     memset(&host, 0, sizeof(host));
 250     host.id = host_id;
 251     if ((cluster->properties != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 252       xbt_dict_cursor_t cursor=nullptr;
 253       char *key,*data;
 254       host.properties = xbt_dict_new();
 255
 256       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 257         xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 258       }
 259     }
 260
 261     host.speed_per_pstate.push_back(cluster->speed);
 262     host.pstate = 0;
 263     host.core_amount = cluster->core_amount;
 264     host.coord = "";
 265     sg_platf_new_host(&host);
 266     XBT_DEBUG("</host>");
 267
 268     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 269
 270     s_surf_parsing_link_up_down_t info_lim;
 271     s_surf_parsing_link_up_down_t info_loop;
 272     // All links are saved in a matrix;
 273     // every row describes a single node; every node may have multiple links.
 274     // the first column may store a link from x to x if p_has_loopback is set
 275     // the second column may store a limiter link if p_has_limiter is set
 276     // other columns are to store one or more link for the node
 277
 278     //add a loopback link
 279     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 280       char *tmp_link = bprintf("%s_loopback", link_id);
 281       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->loopback_bw);
 282
 283       memset(&link, 0, sizeof(link));
 284       link.id        = tmp_link;
 285       link.bandwidth = cluster->loopback_bw;
 286       link.latency   = cluster->loopback_lat;
 287       link.policy    = SURF_LINK_FATPIPE;
 288       sg_platf_new_link(&link);
 289       info_loop.linkUp = Link::byName(tmp_link);
 290       info_loop.linkDown = Link::byName(tmp_link);
 291       free(tmp_link);
 292
 293       auto as_cluster = static_cast<AsCluster*>(current_as);
 294       as_cluster->privateLinks_.insert({rankId*as_cluster->linkCountPerNode_, info_loop});
 295     }
 296
 297     //add a limiter link (shared link to account for maximal bandwidth of the node)
 298     if(cluster->limiter_link!=0){
 299       char *tmp_link = bprintf("%s_limiter", link_id);
 300       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 301
 302       memset(&link, 0, sizeof(link));
 303       link.id = tmp_link;
 304       link.bandwidth = cluster->limiter_link;
 305       link.latency = 0;
 306       link.policy = SURF_LINK_SHARED;
 307       sg_platf_new_link(&link);
 308       info_lim.linkUp = info_lim.linkDown = Link::byName(tmp_link);
 309       free(tmp_link);
 310       current_as->privateLinks_.insert(
 311           {rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_ , info_lim});
 312     }
 313
 314     //call the cluster function that adds the others links
 315     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 316       static_cast<AsClusterFatTree*>(current_as)->addProcessingNode(i);
 317     }
 318     else {
 319       current_as->create_links_for_node(cluster, i, rankId,
 320           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 321     }
 322     xbt_free(link_id);
 323     xbt_free(host_id);
 324     rankId++;
 325   }
 326
 327   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 328   // and it's very useful to connect clusters together
 329   XBT_DEBUG(" ");
 330   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 331   char *newid = nullptr;
 332   s_sg_platf_router_cbarg_t router;
 333   memset(&router, 0, sizeof(router));
 334   router.id = cluster->router_id;
 335   if (!router.id || !strcmp(router.id, ""))
 336     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 337   sg_platf_new_router(&router);
 338   current_as->router_ = (simgrid::kernel::routing::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 339   free(newid);
 340
 341   //Make the backbone
 342   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 343
 344     memset(&link, 0, sizeof(link));
 345     link.id        = bprintf("%s_backbone", cluster->id);
 346     link.bandwidth = cluster->bb_bw;
 347     link.latency   = cluster->bb_lat;
 348     link.policy    = cluster->bb_sharing_policy;
 349
 350     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 351     sg_platf_new_link(&link);
 352
 353     routing_cluster_add_backbone(Link::byName(link.id));
 354     free((char*)link.id);
 355   }
 356
 357   XBT_DEBUG("</AS>");
 358   sg_platf_new_AS_seal();
 359
 360   simgrid::surf::on_cluster(cluster);
 361   delete cluster->radicals;
 362 }
 363 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 364   simgrid::kernel::routing::AsCluster *cluster = dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 365
 366   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 367   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 368
 369   cluster->backbone_ = bb;
 370   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 371 }
 372
 373 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 374 {
 375   for (int radical : *cabinet->radicals) {
 376     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 377     s_sg_platf_host_cbarg_t host;
 378     memset(&host, 0, sizeof(host));
 379     host.pstate           = 0;
 380     host.core_amount      = 1;
 381     host.id               = hostname;
 382     host.speed_per_pstate.push_back(cabinet->speed);
 383     sg_platf_new_host(&host);
 384
 385     s_sg_platf_link_cbarg_t link;
 386     memset(&link, 0, sizeof(link));
 387     link.policy    = SURF_LINK_FULLDUPLEX;
 388     link.latency   = cabinet->lat;
 389     link.bandwidth = cabinet->bw;
 390     link.id        = bprintf("link_%s",hostname);
 391     sg_platf_new_link(&link);
 392     free((char*)link.id);
 393
 394     s_sg_platf_host_link_cbarg_t host_link;
 395     memset(&host_link, 0, sizeof(host_link));
 396     host_link.id        = hostname;
 397     host_link.link_up   = bprintf("link_%s_UP",hostname);
 398     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 399     sg_platf_new_hostlink(&host_link);
 400     free((char*)host_link.link_up);
 401     free((char*)host_link.link_down);
 402
 403     free(hostname);
 404   }
 405   delete cabinet->radicals;
 406 }
 407
 408 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 409 {
 410   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 411                "Refusing to add a second storage named \"%s\"", storage->id);
 412
 413   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 414   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 415
 416   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 417       storage->id,
 418       storage->type_id,
 419       storage->content);
 420
 421   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 422
 423   // if storage content is not specified use the content of storage_type if any
 424   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 425     storage->content = ((storage_type_t) stype)->content;
 426     storage->content_type = ((storage_type_t) stype)->content_type;
 427     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 428         storage->id,((storage_type_t) stype)->content_type,
 429         ((storage_type_t) stype)->type_id);
 430   }
 431
 432   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 433       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 434       "\n\t\tproperties '%p''\n",
 435       storage->id,
 436       ((storage_type_t) stype)->model,
 437       ((storage_type_t) stype)->type_id,
 438       storage->content,
 439       storage->content_type,
 440     storage->properties);
 441
 442   surf_storage_model->createStorage(storage->id,
 443                                      ((storage_type_t) stype)->type_id,
 444                                      storage->content,
 445                                      storage->content_type,
 446                    storage->properties,
 447                                      storage->attach);
 448 }
 449 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 450
 451   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 452                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 453
 454   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 455   stype->model = xbt_strdup(storage_type->model);
 456   stype->properties = storage_type->properties;
 457   stype->content = xbt_strdup(storage_type->content);
 458   stype->content_type = xbt_strdup(storage_type->content_type);
 459   stype->type_id = xbt_strdup(storage_type->id);
 460   stype->size = storage_type->size;
 461   stype->model_properties = storage_type->model_properties;
 462
 463   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 464       "content '%s', and content_type '%s'",
 465       stype->type_id,
 466       stype->model,
 467       storage_type->content,
 468       storage_type->content_type);
 469
 470   xbt_lib_set(storage_type_lib,
 471       stype->type_id,
 472       ROUTING_STORAGE_TYPE_LEVEL,
 473       (void *) stype);
 474 }
 475
 476 static void mount_free(void *p)
 477 {
 478   mount_t mnt = (mount_t) p;
 479   xbt_free(mnt->name);
 480 }
 481
 482 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 483   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 484       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 485
 486   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 487
 488   s_mount_t mnt;
 489   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 490   mnt.name = xbt_strdup(mount->name);
 491
 492   if(!mount_list){
 493     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 494     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 495   }
 496   xbt_dynar_push(mount_list, &mnt);
 497 }
 498
 499 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 500 {
 501   routing_get_current()->addRoute(route);
 502 }
 503
 504 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 505 {
 506   routing_get_current()->addBypassRoute(bypassRoute);
 507 }
 508
 509 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 510 {
 511   sg_host_t host = sg_host_by_name(process->host);
 512   if (!host) {
 513     // The requested host does not exist. Do a nice message to the user
 514     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 515     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 516     free(tmp);
 517     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 518     simgrid::s4u::Host* host;
 519     unsigned int cursor;
 520     xbt_dynar_foreach(all_hosts,cursor, host) {
 521       xbt_strbuff_append(msg,host->name().c_str());
 522       xbt_strbuff_append(msg,"', '");
 523       if (msg->used > 1024) {
 524         msg->data[msg->used-3]='\0';
 525         msg->used -= 3;
 526
 527         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 528         break;
 529       }
 530     }
 531     msg->data[msg->used-3]='\0';
 532     xbt_die("%s", msg->data);
 533   }
 534   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(process->function);
 535   xbt_assert(factory, "Function '%s' unknown", process->function);
 536
 537   double start_time = process->start_time;
 538   double kill_time  = process->kill_time;
 539   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 540
 541   std::vector<std::string> args(process->argv, process->argv + process->argc);
 542   std::function<void()> code = factory(std::move(args));
 543
 544   smx_process_arg_t arg = nullptr;
 545   smx_actor_t process_created = nullptr;
 546
 547   arg = new simgrid::simix::ProcessArg();
 548   arg->name = std::string(process->argv[0]);
 549   arg->code = code;
 550   arg->data = nullptr;
 551   arg->host = host;
 552   arg->kill_time = kill_time;
 553   arg->properties = current_property_set;
 554
 555   sg_host_simix(host)->boot_processes.push_back(arg);
 556
 557   if (start_time > SIMIX_get_clock()) {
 558
 559     arg = new simgrid::simix::ProcessArg();
 560     arg->name = std::string(process->argv[0]);
 561     arg->code = std::move(code);
 562     arg->data = nullptr;
 563     arg->host = host;
 564     arg->kill_time = kill_time;
 565     arg->properties = current_property_set;
 566
 567     XBT_DEBUG("Process %s@%s will be started at time %f",
 568       arg->name.c_str(), arg->host->name().c_str(), start_time);
 569     SIMIX_timer_set(start_time, [=]() {
 570       simix_global->create_process_function(
 571                                             arg->name.c_str(),
 572                                             std::move(arg->code),
 573                                             arg->data,
 574                                             arg->host,
 575                                             arg->kill_time,
 576                                             arg->properties,
 577                                             arg->auto_restart,
 578                                             nullptr);
 579       delete arg;
 580     });
 581   } else {                      // start_time <= SIMIX_get_clock()
 582     XBT_DEBUG("Starting Process %s(%s) right now",
 583       arg->name.c_str(), sg_host_get_name(host));
 584
 585     process_created = simix_global->create_process_function(
 586         arg->name.c_str(), std::move(code), nullptr,
 587         host, kill_time,
 588         current_property_set, auto_restart, nullptr);
 589
 590     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 591     if (!process_created) {
 592       return;
 593     }
 594   }
 595   current_property_set = nullptr;
 596 }
 597
 598 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 599 {
 600   using simgrid::kernel::routing::NetCard;
 601   using simgrid::kernel::routing::AsCluster;
 602
 603   char *host_id = bprintf("peer_%s", peer->id);
 604   char *router_id = bprintf("router_%s", peer->id);
 605
 606   XBT_DEBUG(" ");
 607
 608   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 609   s_sg_platf_AS_cbarg_t AS;
 610   AS.id      = peer->id;
 611   AS.routing = A_surfxml_AS_routing_Cluster;
 612   sg_platf_new_AS_begin(&AS);
 613
 614   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 615   s_sg_platf_host_cbarg_t host;
 616   memset(&host, 0, sizeof(host));
 617   host.id = host_id;
 618
 619   host.speed_per_pstate.push_back(peer->speed);
 620   host.pstate = 0;
 621   host.speed_trace = peer->availability_trace;
 622   host.state_trace = peer->state_trace;
 623   host.core_amount = 1;
 624   sg_platf_new_host(&host);
 625
 626   s_sg_platf_link_cbarg_t link;
 627   memset(&link, 0, sizeof(link));
 628   link.policy  = SURF_LINK_SHARED;
 629   link.latency = peer->lat;
 630
 631   char* link_up = bprintf("link_%s_UP",peer->id);
 632   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
 633   link.id = link_up;
 634   link.bandwidth = peer->bw_out;
 635   sg_platf_new_link(&link);
 636
 637   char* link_down = bprintf("link_%s_DOWN",peer->id);
 638   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
 639   link.id = link_down;
 640   link.bandwidth = peer->bw_in;
 641   sg_platf_new_link(&link);
 642
 643   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
 644   s_sg_platf_host_link_cbarg_t host_link;
 645   memset(&host_link, 0, sizeof(host_link));
 646   host_link.id        = host_id;
 647   host_link.link_up   = link_up;
 648   host_link.link_down = link_down;
 649   sg_platf_new_hostlink(&host_link);
 650   free(link_up);
 651   free(link_down);
 652
 653   XBT_DEBUG("<router id=\"%s\"/>", router_id);
 654   s_sg_platf_router_cbarg_t router;
 655   memset(&router, 0, sizeof(router));
 656   router.id = router_id;
 657   router.coord = peer->coord;
 658   sg_platf_new_router(&router);
 659
 660   XBT_DEBUG("</AS>");
 661   sg_platf_new_AS_seal();
 662   XBT_DEBUG(" ");
 663
 664   free(router_id);
 665   free(host_id);
 666 }
 667
 668 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 669
 670 void sg_platf_end() {
 671   simgrid::surf::on_postparse();
 672 }
 673
 674 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 675 static void surf_config_models_setup()
 676 {
 677   const char* host_model_name    = xbt_cfg_get_string("host/model");
 678   const char* vm_model_name      = xbt_cfg_get_string("vm/model");
 679   const char* network_model_name = xbt_cfg_get_string("network/model");
 680   const char* cpu_model_name     = xbt_cfg_get_string("cpu/model");
 681   const char* storage_model_name = xbt_cfg_get_string("storage/model");
 682
 683   /* The compound host model is needed when using non-default net/cpu models */
 684   if ((!xbt_cfg_is_default_value("network/model") || !xbt_cfg_is_default_value("cpu/model")) &&
 685       xbt_cfg_is_default_value("host/model")) {
 686     host_model_name = "compound";
 687     xbt_cfg_set_string("host/model", host_model_name);
 688   }
 689
 690   XBT_DEBUG("host model: %s", host_model_name);
 691   if (!strcmp(host_model_name, "compound")) {
 692     xbt_assert(cpu_model_name, "Set a cpu model to use with the 'compound' host model");
 693     xbt_assert(network_model_name, "Set a network model to use with the 'compound' host model");
 694
 695     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
 696     surf_cpu_model_description[cpu_id].model_init_preparse();
 697
 698     int network_id = find_model_description(surf_network_model_description, network_model_name);
 699     surf_network_model_description[network_id].model_init_preparse();
 700   }
 701
 702   XBT_DEBUG("Call host_model_init");
 703   int host_id = find_model_description(surf_host_model_description, host_model_name);
 704   surf_host_model_description[host_id].model_init_preparse();
 705
 706   XBT_DEBUG("Call vm_model_init");
 707   int vm_id = find_model_description(surf_vm_model_description, vm_model_name);
 708   surf_vm_model_description[vm_id].model_init_preparse();
 709
 710   XBT_DEBUG("Call storage_model_init");
 711   int storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 712   surf_storage_model_description[storage_id].model_init_preparse();
 713 }
 714
 715 /**
 716  * \brief Add an AS to the platform
 717  *
 718  * Add a new autonomous system to the platform. Any elements (such as host,
 719  * router or sub-AS) added after this call and before the corresponding call
 720  * to sg_platf_new_AS_seal() will be added to this AS.
 721  *
 722  * Once this function was called, the configuration concerning the used
 723  * models cannot be changed anymore.
 724  *
 725  * @param AS the parameters defining the AS to build.
 726  */
 727 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 728 {
 729   if (!surf_parse_models_setup_already_called) {
 730     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 731      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 732      *
 733      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 734      * (FIXME: check it out by creating a file beginning with one of these tags)
 735      * but cluster and peer create ASes internally, so putting the code in there is ok.
 736      */
 737     surf_parse_models_setup_already_called = 1;
 738     surf_config_models_setup();
 739   }
 740
 741   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 742                             * any further config now that we created some real content */
 743
 744
 745   /* search the routing model */
 746   simgrid::kernel::routing::AsImpl *new_as = nullptr;
 747   switch(AS->routing){
 748     case A_surfxml_AS_routing_Cluster:
 749       new_as = new simgrid::kernel::routing::AsCluster(current_routing, AS->id);
 750       break;
 751     case A_surfxml_AS_routing_ClusterDragonfly:
 752       new_as = new simgrid::kernel::routing::AsClusterDragonfly(current_routing, AS->id);
 753       break;
 754     case A_surfxml_AS_routing_ClusterTorus:
 755       new_as = new simgrid::kernel::routing::AsClusterTorus(current_routing, AS->id);
 756       break;
 757     case A_surfxml_AS_routing_ClusterFatTree:
 758       new_as = new simgrid::kernel::routing::AsClusterFatTree(current_routing, AS->id);
 759       break;
 760     case A_surfxml_AS_routing_Dijkstra:
 761       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 0);
 762       break;
 763     case A_surfxml_AS_routing_DijkstraCache:
 764       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 1);
 765       break;
 766     case A_surfxml_AS_routing_Floyd:
 767       new_as = new simgrid::kernel::routing::AsFloyd(current_routing, AS->id);
 768       break;
 769     case A_surfxml_AS_routing_Full:
 770       new_as = new simgrid::kernel::routing::AsFull(current_routing, AS->id);
 771       break;
 772     case A_surfxml_AS_routing_None:
 773       new_as = new simgrid::kernel::routing::AsNone(current_routing, AS->id);
 774       break;
 775     case A_surfxml_AS_routing_Vivaldi:
 776       new_as = new simgrid::kernel::routing::AsVivaldi(current_routing, AS->id);
 777       break;
 778     default:
 779       xbt_die("Not a valid model!");
 780       break;
 781   }
 782
 783
 784   if (current_routing == nullptr && routing_platf->root_ == nullptr) { /* it is the first one */
 785     routing_platf->root_ = new_as;
 786
 787   } else if (current_routing != nullptr && routing_platf->root_ != nullptr) {
 788     /* set the father behavior */
 789     if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 790       current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::recursive;
 791     /* add to the sons dictionary */
 792     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, nullptr);
 793
 794   } else {
 795     THROWF(arg_error, 0, "All defined components must belong to a AS");
 796   }
 797
 798   /* set the new current component of the tree */
 799   current_routing = new_as;
 800
 801   simgrid::kernel::routing::asCreatedCallbacks(new_as);
 802   if (TRACE_is_enabled())
 803     sg_instr_AS_begin(AS);
 804
 805   return new_as;
 806 }
 807
 808 /**
 809  * \brief Specify that the description of the current AS is finished
 810  *
 811  * Once you've declared all the content of your AS, you have to seal
 812  * it with this call. Your AS is not usable until you call this function.
 813  */
 814 void sg_platf_new_AS_seal()
 815 {
 816   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 817   current_routing->seal();
 818   current_routing = static_cast<simgrid::kernel::routing::AsImpl*>(current_routing->father());
 819
 820   if (TRACE_is_enabled())
 821     sg_instr_AS_end();
 822 }
 823
 824 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 825 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 826 {
 827   simgrid::kernel::routing::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 828   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 829   xbt_assert(dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing),
 830       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 831
 832   s_surf_parsing_link_up_down_t link_up_down;
 833   link_up_down.linkUp = Link::byName(hostlink->link_up);
 834   link_up_down.linkDown = Link::byName(hostlink->link_down);
 835
 836   xbt_assert(link_up_down.linkUp, "Link '%s' not found!",hostlink->link_up);
 837   xbt_assert(link_up_down.linkDown, "Link '%s' not found!",hostlink->link_down);
 838
 839   auto as_cluster = static_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 840
 841   if (as_cluster->privateLinks_.find(netcard->id()) != as_cluster->privateLinks_.end())
 842     surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
 843
 844   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name(), netcard->id());
 845   as_cluster->privateLinks_.insert({netcard->id(), link_up_down});
 846 }