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/routing/AsImpl.hpp"
  27 #include "src/routing/AsCluster.hpp"
  28 #include "src/routing/AsClusterTorus.hpp"
  29 #include "src/routing/AsClusterFatTree.hpp"
  30 #include "src/routing/AsClusterDragonfly.hpp"
  31 #include "src/routing/AsDijkstra.hpp"
  32 #include "src/routing/AsFloyd.hpp"
  33 #include "src/routing/AsFull.hpp"
  34 #include "src/routing/AsNone.hpp"
  35 #include "src/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 /* Turn something like "1-4,6,9-11" into the vector {1,2,3,4,6,9,10,11} */
  54 static std::vector<int> *explodesRadical(const char*radicals){
  55   std::vector<int> *exploded = new std::vector<int>();
  56   char *groups;
  57   unsigned int iter;
  58
  59   //Make all hosts
  60   xbt_dynar_t radical_elements = xbt_str_split(radicals, ",");
  61   xbt_dynar_foreach(radical_elements, iter, groups) {
  62
  63     xbt_dynar_t radical_ends = xbt_str_split(groups, "-");
  64     int start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
  65     int end=0;
  66
  67     switch (xbt_dynar_length(radical_ends)) {
  68     case 1:
  69       end = start;
  70       break;
  71     case 2:
  72       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
  73       break;
  74     default:
  75       surf_parse_error("Malformed radical: %s", groups);
  76       break;
  77     }
  78
  79     for (int i = start; i <= end; i++)
  80       exploded->push_back( i );
  81
  82     xbt_dynar_free(&radical_ends);
  83   }
  84   xbt_dynar_free(&radical_elements);
  85
  86   return exploded;
  87 }
  88
  89
  90 /** The current AS in the parsing */
  91 static simgrid::routing::AsImpl *current_routing = nullptr;
  92 static simgrid::routing::AsImpl* routing_get_current()
  93 {
  94   return current_routing;
  95 }
  96
  97 /** Module management function: creates all internal data structures */
  98 void sg_platf_init(void) {
  99 }
 100
 101 /** Module management function: frees all internal data structures */
 102 void sg_platf_exit(void) {
 103   simgrid::surf::on_link.disconnect_all_slots();
 104   simgrid::surf::on_cluster.disconnect_all_slots();
 105   simgrid::surf::on_postparse.disconnect_all_slots();
 106
 107   /* make sure that we will reinit the models while loading the platf once reinited */
 108   surf_parse_models_setup_already_called = 0;
 109   surf_parse_lex_destroy();
 110 }
 111
 112 /** @brief Add an "host" to the current AS */
 113 void sg_platf_new_host(sg_platf_host_cbarg_t host)
 114 {
 115   xbt_assert(sg_host_by_name(host->id) == nullptr, "Refusing to create a second host named '%s'.", host->id);
 116
 117   simgrid::routing::AsImpl* current_routing = routing_get_current();
 118   if (current_routing->hierarchy_ == simgrid::routing::AsImpl::RoutingMode::unset)
 119     current_routing->hierarchy_ = simgrid::routing::AsImpl::RoutingMode::base;
 120
 121   simgrid::routing::NetCard *netcard =
 122       new simgrid::routing::NetCardImpl(host->id, simgrid::routing::NetCard::Type::Host, current_routing);
 123
 124   sg_host_t h = simgrid::s4u::Host::by_name_or_create(host->id);
 125   h->pimpl_netcard = netcard;
 126
 127   if(mount_list) {
 128     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 129     mount_list = nullptr;
 130   }
 131
 132   if (host->coord && strcmp(host->coord, "")) {
 133     unsigned int cursor;
 134     char*str;
 135
 136     xbt_assert(COORD_HOST_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 137     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 138     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 139     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", host->id);
 140
 141     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
 142     xbt_dynar_foreach(ctn_str,cursor, str) {
 143       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 144       xbt_dynar_push(ctn,&val);
 145     }
 146     xbt_dynar_free(&ctn_str);
 147     xbt_dynar_shrink(ctn, 0);
 148     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
 149   }
 150
 151   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h, host->speed_per_pstate, host->core_amount);
 152   if (host->state_trace)
 153     cpu->setStateTrace(host->state_trace);
 154   if (host->speed_trace)
 155     cpu->setSpeedTrace(host->speed_trace);
 156   surf_host_model->createHost(host->id, netcard, cpu)->attach(h);
 157
 158   if (host->properties) {
 159     xbt_dict_cursor_t cursor=nullptr;
 160     char *key,*data;
 161     xbt_dict_foreach(host->properties,cursor,key,data)
 162       h->setProperty(key,data);
 163     xbt_dict_free(&host->properties);
 164   }
 165
 166   if (host->pstate != 0)
 167     cpu->setPState(host->pstate);
 168
 169   simgrid::s4u::Host::onCreation(*h);
 170
 171   if (TRACE_is_enabled() && TRACE_needs_platform())
 172     sg_instr_new_host(host);
 173 }
 174
 175 /** @brief Add a "router" to the network element list */
 176 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 177 {
 178   simgrid::routing::AsImpl* current_routing = routing_get_current();
 179
 180   if (current_routing->hierarchy_ == simgrid::routing::AsImpl::RoutingMode::unset)
 181     current_routing->hierarchy_ = simgrid::routing::AsImpl::RoutingMode::base;
 182   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 183              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 184
 185   simgrid::routing::NetCard* netcard =
 186     new simgrid::routing::NetCardImpl(router->id, simgrid::routing::NetCard::Type::Router, current_routing);
 187   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, netcard);
 188   XBT_DEBUG("Router '%s' has the id %d", router->id, netcard->id());
 189
 190   if (router->coord && strcmp(router->coord, "")) {
 191     unsigned int cursor;
 192     char*str;
 193
 194     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 195     /* Pre-parse the host coordinates */
 196     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 197     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
 198     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
 199     xbt_dynar_foreach(ctn_str,cursor, str) {
 200       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 201       xbt_dynar_push(ctn,&val);
 202     }
 203     xbt_dynar_free(&ctn_str);
 204     xbt_dynar_shrink(ctn, 0);
 205     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 206   }
 207
 208   if (TRACE_is_enabled() && TRACE_needs_platform())
 209     sg_instr_new_router(router);
 210 }
 211
 212 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 213   std::vector<char*> names;
 214
 215   if (link->policy == SURF_LINK_FULLDUPLEX) {
 216     names.push_back(bprintf("%s_UP", link->id));
 217     names.push_back(bprintf("%s_DOWN", link->id));
 218   } else {
 219     names.push_back(xbt_strdup(link->id));
 220   }
 221   for (auto link_name : names) {
 222     Link *l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy, link->properties);
 223
 224     if (link->latency_trace)
 225       l->setLatencyTrace(link->latency_trace);
 226     if (link->bandwidth_trace)
 227       l->setBandwidthTrace(link->bandwidth_trace);
 228     if (link->state_trace)
 229       l->setStateTrace(link->state_trace);
 230
 231     xbt_free(link_name);
 232   }
 233
 234   simgrid::surf::on_link(link);
 235 }
 236
 237 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 238 {
 239   using simgrid::routing::AsCluster;
 240   using simgrid::routing::AsClusterDragonfly;
 241   using simgrid::routing::AsClusterFatTree;
 242   using simgrid::routing::AsClusterTorus;
 243
 244   int rankId=0;
 245
 246   s_sg_platf_link_cbarg_t link;
 247
 248   // What an inventive way of initializing the AS that I have as ancestor :-(
 249   s_sg_platf_AS_cbarg_t AS;
 250   AS.id = cluster->id;
 251   switch (cluster->topology) {
 252   case SURF_CLUSTER_TORUS:
 253     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 254     break;
 255   case SURF_CLUSTER_DRAGONFLY:
 256     AS.routing = A_surfxml_AS_routing_ClusterDragonfly;
 257     break;
 258   case SURF_CLUSTER_FAT_TREE:
 259     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 260     break;
 261   default:
 262     AS.routing = A_surfxml_AS_routing_Cluster;
 263     break;
 264   }
 265   sg_platf_new_AS_begin(&AS);
 266   simgrid::routing::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
 267   current_as->parse_specific_arguments(cluster);
 268
 269   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 270     current_as->linkCountPerNode_++;
 271     current_as->hasLoopback_ = 1;
 272   }
 273
 274   if(cluster->limiter_link!=0){
 275     current_as->linkCountPerNode_++;
 276     current_as->hasLimiter_ = 1;
 277   }
 278
 279   std::vector<int> *radicals = explodesRadical(cluster->radical);
 280   for (int i : *radicals) {
 281     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 282     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 283
 284     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 285
 286     s_sg_platf_host_cbarg_t host;
 287     memset(&host, 0, sizeof(host));
 288     host.id = host_id;
 289     if ((cluster->properties != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 290       xbt_dict_cursor_t cursor=nullptr;
 291       char *key,*data;
 292       host.properties = xbt_dict_new();
 293
 294       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 295         xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 296       }
 297     }
 298
 299     host.speed_per_pstate = xbt_dynar_new(sizeof(double), nullptr);
 300     xbt_dynar_push(host.speed_per_pstate,&cluster->speed);
 301     host.pstate = 0;
 302     host.core_amount = cluster->core_amount;
 303     host.coord = "";
 304     sg_platf_new_host(&host);
 305     xbt_dynar_free(&host.speed_per_pstate);
 306     XBT_DEBUG("</host>");
 307
 308     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 309
 310     s_surf_parsing_link_up_down_t info_lim, info_loop;
 311     // All links are saved in a matrix;
 312     // every row describes a single node; every node may have multiple links.
 313     // the first column may store a link from x to x if p_has_loopback is set
 314     // the second column may store a limiter link if p_has_limiter is set
 315     // other columns are to store one or more link for the node
 316
 317     //add a loopback link
 318     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 319       char *tmp_link = bprintf("%s_loopback", link_id);
 320       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->loopback_bw);
 321
 322       memset(&link, 0, sizeof(link));
 323       link.id        = tmp_link;
 324       link.bandwidth = cluster->loopback_bw;
 325       link.latency   = cluster->loopback_lat;
 326       link.policy    = SURF_LINK_FATPIPE;
 327       sg_platf_new_link(&link);
 328       info_loop.linkUp = info_loop.linkDown = Link::byName(tmp_link);
 329       free(tmp_link);
 330       auto as_cluster = static_cast<AsCluster*>(current_as);
 331       xbt_dynar_set(as_cluster->privateLinks_, rankId*as_cluster->linkCountPerNode_, &info_loop);
 332     }
 333
 334     //add a limiter link (shared link to account for maximal bandwidth of the node)
 335     if(cluster->limiter_link!=0){
 336       char *tmp_link = bprintf("%s_limiter", link_id);
 337       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 338
 339       memset(&link, 0, sizeof(link));
 340       link.id = tmp_link;
 341       link.bandwidth = cluster->limiter_link;
 342       link.latency = 0;
 343       link.policy = SURF_LINK_SHARED;
 344       sg_platf_new_link(&link);
 345       info_lim.linkUp = info_lim.linkDown = Link::byName(tmp_link);
 346       free(tmp_link);
 347       xbt_dynar_set(current_as->privateLinks_, rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_ , &info_lim);
 348     }
 349
 350     //call the cluster function that adds the others links
 351     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 352       ((AsClusterFatTree*) current_as)->addProcessingNode(i);
 353     }
 354     else {
 355       current_as->create_links_for_node(cluster, i, rankId,
 356           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 357     }
 358     xbt_free(link_id);
 359     xbt_free(host_id);
 360     rankId++;
 361   }
 362   delete radicals;
 363
 364   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 365   // and it's very useful to connect clusters together
 366   XBT_DEBUG(" ");
 367   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 368   char *newid = nullptr;
 369   s_sg_platf_router_cbarg_t router;
 370   memset(&router, 0, sizeof(router));
 371   router.id = cluster->router_id;
 372   if (!router.id || !strcmp(router.id, ""))
 373     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 374   sg_platf_new_router(&router);
 375   current_as->router_ = (simgrid::routing::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 376   free(newid);
 377
 378   //Make the backbone
 379   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 380
 381     memset(&link, 0, sizeof(link));
 382     link.id        = bprintf("%s_backbone", cluster->id);
 383     link.bandwidth = cluster->bb_bw;
 384     link.latency   = cluster->bb_lat;
 385     link.policy    = cluster->bb_sharing_policy;
 386
 387     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 388     sg_platf_new_link(&link);
 389
 390     routing_cluster_add_backbone(Link::byName(link.id));
 391     free((char*)link.id);
 392   }
 393
 394   XBT_DEBUG("</AS>");
 395   sg_platf_new_AS_seal();
 396
 397   simgrid::surf::on_cluster(cluster);
 398 }
 399 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 400   simgrid::routing::AsCluster *cluster = dynamic_cast<simgrid::routing::AsCluster*>(current_routing);
 401
 402   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 403   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 404
 405   cluster->backbone_ = bb;
 406   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 407 }
 408
 409 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 410 {
 411   std::vector<int> *radicals = explodesRadical(cabinet->radical);
 412
 413   for (int radical : *radicals) {
 414     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 415     s_sg_platf_host_cbarg_t host;
 416     memset(&host, 0, sizeof(host));
 417     host.pstate           = 0;
 418     host.core_amount      = 1;
 419     host.id               = hostname;
 420     host.speed_per_pstate = xbt_dynar_new(sizeof(double), nullptr);
 421     xbt_dynar_push(host.speed_per_pstate,&cabinet->speed);
 422     sg_platf_new_host(&host);
 423     xbt_dynar_free(&host.speed_per_pstate);
 424
 425     s_sg_platf_link_cbarg_t link;
 426     memset(&link, 0, sizeof(link));
 427     link.policy    = SURF_LINK_FULLDUPLEX;
 428     link.latency   = cabinet->lat;
 429     link.bandwidth = cabinet->bw;
 430     link.id        = bprintf("link_%s",hostname);
 431     sg_platf_new_link(&link);
 432     free((char*)link.id);
 433
 434     s_sg_platf_host_link_cbarg_t host_link;
 435     memset(&host_link, 0, sizeof(host_link));
 436     host_link.id        = hostname;
 437     host_link.link_up   = bprintf("link_%s_UP",hostname);
 438     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 439     sg_platf_new_hostlink(&host_link);
 440     free((char*)host_link.link_up);
 441     free((char*)host_link.link_down);
 442
 443     free(hostname);
 444   }
 445   delete(radicals);
 446 }
 447
 448 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 449 {
 450   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 451                "Refusing to add a second storage named \"%s\"", storage->id);
 452
 453   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 454   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 455
 456   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 457       storage->id,
 458       storage->type_id,
 459       storage->content);
 460
 461   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 462
 463   // if storage content is not specified use the content of storage_type if any
 464   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 465     storage->content = ((storage_type_t) stype)->content;
 466     storage->content_type = ((storage_type_t) stype)->content_type;
 467     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 468         storage->id,((storage_type_t) stype)->content_type,
 469         ((storage_type_t) stype)->type_id);
 470   }
 471
 472   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 473       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 474       "\n\t\tproperties '%p''\n",
 475       storage->id,
 476       ((storage_type_t) stype)->model,
 477       ((storage_type_t) stype)->type_id,
 478       storage->content,
 479       storage->content_type,
 480     storage->properties);
 481
 482   surf_storage_model->createStorage(storage->id,
 483                                      ((storage_type_t) stype)->type_id,
 484                                      storage->content,
 485                                      storage->content_type,
 486                    storage->properties,
 487                                      storage->attach);
 488 }
 489 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 490
 491   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 492                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 493
 494   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 495   stype->model = xbt_strdup(storage_type->model);
 496   stype->properties = storage_type->properties;
 497   stype->content = xbt_strdup(storage_type->content);
 498   stype->content_type = xbt_strdup(storage_type->content_type);
 499   stype->type_id = xbt_strdup(storage_type->id);
 500   stype->size = storage_type->size;
 501   stype->model_properties = storage_type->model_properties;
 502
 503   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 504       "content '%s', and content_type '%s'",
 505       stype->type_id,
 506       stype->model,
 507       storage_type->content,
 508       storage_type->content_type);
 509
 510   xbt_lib_set(storage_type_lib,
 511       stype->type_id,
 512       ROUTING_STORAGE_TYPE_LEVEL,
 513       (void *) stype);
 514 }
 515
 516 static void mount_free(void *p)
 517 {
 518   mount_t mnt = (mount_t) p;
 519   xbt_free(mnt->name);
 520 }
 521
 522 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 523   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 524       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 525
 526   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 527
 528   s_mount_t mnt;
 529   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 530   mnt.name = xbt_strdup(mount->name);
 531
 532   if(!mount_list){
 533     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 534     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 535   }
 536   xbt_dynar_push(mount_list, &mnt);
 537 }
 538
 539 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 540 {
 541   routing_get_current()->addRoute(route);
 542 }
 543
 544 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 545 {
 546   routing_get_current()->addBypassRoute(bypassRoute);
 547 }
 548
 549 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 550 {
 551   sg_host_t host = sg_host_by_name(process->host);
 552   if (!host) {
 553     // The requested host does not exist. Do a nice message to the user
 554     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 555     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 556     free(tmp);
 557     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 558     simgrid::s4u::Host* host;
 559     unsigned int cursor;
 560     xbt_dynar_foreach(all_hosts,cursor, host) {
 561       xbt_strbuff_append(msg,host->name().c_str());
 562       xbt_strbuff_append(msg,"', '");
 563       if (msg->used > 1024) {
 564         msg->data[msg->used-3]='\0';
 565         msg->used -= 3;
 566
 567         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 568       }
 569     }
 570     msg->data[msg->used-3]='\0';
 571     xbt_die("%s", msg->data);
 572   }
 573   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(process->function);
 574   xbt_assert(factory, "Function '%s' unknown", process->function);
 575
 576   double start_time = process->start_time;
 577   double kill_time  = process->kill_time;
 578   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 579
 580   std::vector<std::string> args(process->argv, process->argv + process->argc);
 581   std::function<void()> code = factory(std::move(args));
 582
 583   smx_process_arg_t arg = nullptr;
 584   smx_process_t process_created = nullptr;
 585
 586   arg = new simgrid::simix::ProcessArg();
 587   arg->name = std::string(process->argv[0]);
 588   arg->code = code;
 589   arg->data = nullptr;
 590   arg->hostname = sg_host_get_name(host);
 591   arg->kill_time = kill_time;
 592   arg->properties = current_property_set;
 593   if (!sg_host_simix(host)->boot_processes)
 594     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 595
 596   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 597
 598   if (start_time > SIMIX_get_clock()) {
 599
 600     arg = new simgrid::simix::ProcessArg();
 601     arg->name = std::string(process->argv[0]);
 602     arg->code = std::move(code);
 603     arg->data = nullptr;
 604     arg->hostname = sg_host_get_name(host);
 605     arg->kill_time = kill_time;
 606     arg->properties = current_property_set;
 607
 608     XBT_DEBUG("Process %s(%s) will be started at time %f",
 609       arg->name.c_str(), arg->hostname, start_time);
 610     SIMIX_timer_set(start_time, [=]() {
 611       simix_global->create_process_function(
 612                                             arg->name.c_str(),
 613                                             std::move(arg->code),
 614                                             arg->data,
 615                                             arg->hostname,
 616                                             arg->kill_time,
 617                                             arg->properties,
 618                                             arg->auto_restart,
 619                                             nullptr);
 620       delete arg;
 621     });
 622   } else {                      // start_time <= SIMIX_get_clock()
 623     XBT_DEBUG("Starting Process %s(%s) right now",
 624       arg->name.c_str(), sg_host_get_name(host));
 625
 626     if (simix_global->create_process_function)
 627       process_created = simix_global->create_process_function(
 628           arg->name.c_str(), std::move(code), nullptr,
 629           sg_host_get_name(host), kill_time,
 630           current_property_set, auto_restart, nullptr);
 631     else
 632       process_created = simcall_process_create(
 633           arg->name.c_str(), std::move(code), nullptr, sg_host_get_name(host), kill_time,
 634           current_property_set,auto_restart);
 635
 636     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 637     if (!process_created) {
 638       return;
 639     }
 640   }
 641   current_property_set = nullptr;
 642 }
 643
 644 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 645 {
 646   using simgrid::routing::NetCard;
 647   using simgrid::routing::AsCluster;
 648
 649   char *host_id = bprintf("peer_%s", peer->id);
 650   char *router_id = bprintf("router_%s", peer->id);
 651
 652   XBT_DEBUG(" ");
 653
 654   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 655   s_sg_platf_AS_cbarg_t AS;
 656   AS.id      = peer->id;
 657   AS.routing = A_surfxml_AS_routing_Cluster;
 658   sg_platf_new_AS_begin(&AS);
 659
 660   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 661   s_sg_platf_host_cbarg_t host;
 662   memset(&host, 0, sizeof(host));
 663   host.id = host_id;
 664
 665   host.speed_per_pstate = xbt_dynar_new(sizeof(double), nullptr);
 666   xbt_dynar_push(host.speed_per_pstate,&peer->speed);
 667   host.pstate = 0;
 668   host.speed_trace = peer->availability_trace;
 669   host.state_trace = peer->state_trace;
 670   host.core_amount = 1;
 671   sg_platf_new_host(&host);
 672   xbt_dynar_free(&host.speed_per_pstate);
 673
 674   s_sg_platf_link_cbarg_t link;
 675   memset(&link, 0, sizeof(link));
 676   link.policy  = SURF_LINK_SHARED;
 677   link.latency = peer->lat;
 678
 679   char* link_up = bprintf("link_%s_UP",peer->id);
 680   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
 681   link.id = link_up;
 682   link.bandwidth = peer->bw_out;
 683   sg_platf_new_link(&link);
 684
 685   char* link_down = bprintf("link_%s_DOWN",peer->id);
 686   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
 687   link.id = link_down;
 688   link.bandwidth = peer->bw_in;
 689   sg_platf_new_link(&link);
 690
 691   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
 692   s_sg_platf_host_link_cbarg_t host_link;
 693   memset(&host_link, 0, sizeof(host_link));
 694   host_link.id        = host_id;
 695   host_link.link_up   = link_up;
 696   host_link.link_down = link_down;
 697   sg_platf_new_hostlink(&host_link);
 698   free(link_up);
 699   free(link_down);
 700
 701   XBT_DEBUG("<router id=\"%s\"/>", router_id);
 702   s_sg_platf_router_cbarg_t router;
 703   memset(&router, 0, sizeof(router));
 704   router.id = router_id;
 705   router.coord = peer->coord;
 706   sg_platf_new_router(&router);
 707   static_cast<AsCluster*>(current_routing)->router_ = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
 708
 709   XBT_DEBUG("</AS>");
 710   sg_platf_new_AS_seal();
 711   XBT_DEBUG(" ");
 712
 713   free(router_id);
 714   free(host_id);
 715 }
 716
 717 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 718
 719 void sg_platf_end() {
 720   simgrid::surf::on_postparse();
 721 }
 722
 723 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 724 static void surf_config_models_setup()
 725 {
 726   const char *host_model_name;
 727   const char *vm_model_name;
 728   int host_id = -1;
 729   int vm_id = -1;
 730   char *network_model_name = nullptr;
 731   char *cpu_model_name = nullptr;
 732   int storage_id = -1;
 733   char *storage_model_name = nullptr;
 734
 735   host_model_name    = xbt_cfg_get_string("host/model");
 736   vm_model_name      = xbt_cfg_get_string("vm/model");
 737   network_model_name = xbt_cfg_get_string("network/model");
 738   cpu_model_name     = xbt_cfg_get_string("cpu/model");
 739   storage_model_name = xbt_cfg_get_string("storage/model");
 740
 741   /* Check whether we use a net/cpu model differing from the default ones, in which case
 742    * we should switch to the "compound" host model to correctly dispatch stuff to
 743    * the right net/cpu models.
 744    */
 745
 746   if ((!xbt_cfg_is_default_value("network/model") ||
 747        !xbt_cfg_is_default_value("cpu/model")) &&
 748       xbt_cfg_is_default_value("host/model")) {
 749     host_model_name = "compound";
 750     xbt_cfg_set_string("host/model", host_model_name);
 751   }
 752
 753   XBT_DEBUG("host model: %s", host_model_name);
 754   host_id = find_model_description(surf_host_model_description, host_model_name);
 755   if (!strcmp(host_model_name, "compound")) {
 756     int network_id = -1;
 757     int cpu_id = -1;
 758
 759     xbt_assert(cpu_model_name,
 760                 "Set a cpu model to use with the 'compound' host model");
 761
 762     xbt_assert(network_model_name,
 763                 "Set a network model to use with the 'compound' host model");
 764
 765     if(surf_cpu_model_init_preparse){
 766       surf_cpu_model_init_preparse();
 767     } else {
 768       cpu_id =
 769           find_model_description(surf_cpu_model_description, cpu_model_name);
 770       surf_cpu_model_description[cpu_id].model_init_preparse();
 771     }
 772
 773     network_id =
 774         find_model_description(surf_network_model_description,
 775                                network_model_name);
 776     surf_network_model_description[network_id].model_init_preparse();
 777   }
 778
 779   XBT_DEBUG("Call host_model_init");
 780   surf_host_model_description[host_id].model_init_preparse();
 781
 782   XBT_DEBUG("Call vm_model_init");
 783   vm_id = find_model_description(surf_vm_model_description, vm_model_name);
 784   surf_vm_model_description[vm_id].model_init_preparse();
 785
 786   XBT_DEBUG("Call storage_model_init");
 787   storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 788   surf_storage_model_description[storage_id].model_init_preparse();
 789
 790 }
 791
 792 /**
 793  * \brief Make a new routing component to the platform
 794  *
 795  * Add a new autonomous system to the platform. Any elements (such as host,
 796  * router or sub-AS) added after this call and before the corresponding call
 797  * to sg_platf_new_AS_seal() will be added to this AS.
 798  *
 799  * Once this function was called, the configuration concerning the used
 800  * models cannot be changed anymore.
 801  *
 802  * @param AS the parameters defining the AS to build.
 803  */
 804 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 805 {
 806   if (!surf_parse_models_setup_already_called) {
 807     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 808      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 809      *
 810      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 811      * (FIXME: check it out by creating a file beginning with one of these tags)
 812      * but cluster and peer create ASes internally, so putting the code in there is ok.
 813      */
 814     surf_parse_models_setup_already_called = 1;
 815     surf_config_models_setup();
 816   }
 817
 818   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 819       "Refusing to create a second AS called \"%s\".", AS->id);
 820
 821   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 822                             * any further config now that we created some real content */
 823
 824
 825   /* search the routing model */
 826   simgrid::routing::AsImpl *new_as = nullptr;
 827   switch(AS->routing){
 828     case A_surfxml_AS_routing_Cluster:        new_as = new simgrid::routing::AsCluster(AS->id);        break;
 829     case A_surfxml_AS_routing_ClusterDragonfly:   new_as = new simgrid::routing::AsClusterDragonfly(AS->id);   break;
 830     case A_surfxml_AS_routing_ClusterTorus:   new_as = new simgrid::routing::AsClusterTorus(AS->id);   break;
 831     case A_surfxml_AS_routing_ClusterFatTree: new_as = new simgrid::routing::AsClusterFatTree(AS->id); break;
 832     case A_surfxml_AS_routing_Dijkstra:       new_as = new simgrid::routing::AsDijkstra(AS->id, 0);    break;
 833     case A_surfxml_AS_routing_DijkstraCache:  new_as = new simgrid::routing::AsDijkstra(AS->id, 1);    break;
 834     case A_surfxml_AS_routing_Floyd:          new_as = new simgrid::routing::AsFloyd(AS->id);          break;
 835     case A_surfxml_AS_routing_Full:           new_as = new simgrid::routing::AsFull(AS->id);           break;
 836     case A_surfxml_AS_routing_None:           new_as = new simgrid::routing::AsNone(AS->id);           break;
 837     case A_surfxml_AS_routing_Vivaldi:        new_as = new simgrid::routing::AsVivaldi(AS->id);        break;
 838     default:                                  xbt_die("Not a valid model!");                        break;
 839   }
 840
 841   /* make a new routing component */
 842   simgrid::routing::NetCard *netcard = new simgrid::routing::NetCardImpl(new_as->name(), simgrid::routing::NetCard::Type::As, current_routing);
 843
 844   if (current_routing == nullptr && routing_platf->root_ == nullptr) { /* it is the first one */
 845     routing_platf->root_ = new_as;
 846   } else if (current_routing != nullptr && routing_platf->root_ != nullptr) {
 847
 848     xbt_assert(!xbt_dict_get_or_null(current_routing->children(), AS->id),
 849                "The AS \"%s\" already exists", AS->id);
 850     /* it is a part of the tree */
 851     new_as->father_ = current_routing;
 852     /* set the father behavior */
 853     if (current_routing->hierarchy_ == simgrid::routing::AsImpl::RoutingMode::unset)
 854       current_routing->hierarchy_ = simgrid::routing::AsImpl::RoutingMode::recursive;
 855     /* add to the sons dictionary */
 856     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, nullptr);
 857   } else {
 858     THROWF(arg_error, 0, "All defined components must belong to a AS");
 859   }
 860
 861   xbt_lib_set(as_router_lib, netcard->name(), ROUTING_ASR_LEVEL, (void *) netcard);
 862   XBT_DEBUG("Having set name '%s' id '%d'", new_as->name(), netcard->id());
 863
 864   /* set the new current component of the tree */
 865   current_routing = new_as;
 866   current_routing->netcard_ = netcard;
 867
 868   simgrid::routing::asCreatedCallbacks(new_as);
 869   if (TRACE_is_enabled())
 870     sg_instr_AS_begin(AS);
 871
 872   return new_as;
 873 }
 874
 875 /**
 876  * \brief Specify that the description of the current AS is finished
 877  *
 878  * Once you've declared all the content of your AS, you have to seal
 879  * it with this call. Your AS is not usable until you call this function.
 880  */
 881 void sg_platf_new_AS_seal()
 882 {
 883   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 884   current_routing->seal();
 885   current_routing = static_cast<simgrid::routing::AsImpl*>(current_routing->father());
 886
 887   if (TRACE_is_enabled())
 888     sg_instr_AS_end();
 889 }
 890
 891 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 892 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 893 {
 894   simgrid::routing::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 895   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 896   xbt_assert(dynamic_cast<simgrid::routing::AsCluster*>(current_routing),
 897       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 898
 899   s_surf_parsing_link_up_down_t link_up_down;
 900   link_up_down.linkUp = Link::byName(hostlink->link_up);
 901   link_up_down.linkDown = Link::byName(hostlink->link_down);
 902
 903   xbt_assert(link_up_down.linkUp, "Link '%s' not found!",hostlink->link_up);
 904   xbt_assert(link_up_down.linkDown, "Link '%s' not found!",hostlink->link_down);
 905
 906   // If dynar is is greater than netcard id and if the host_link is already defined
 907   auto as_cluster = static_cast<simgrid::routing::AsCluster*>(current_routing);
 908   if((int)xbt_dynar_length(as_cluster->privateLinks_) > netcard->id() &&
 909       xbt_dynar_get_as(as_cluster->privateLinks_, netcard->id(), void*))
 910   surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
 911
 912   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name(), netcard->id());
 913   xbt_dynar_set_as(as_cluster->privateLinks_, netcard->id(), s_surf_parsing_link_up_down_t, link_up_down);
 914 }