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