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