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 "simgrid/s4u/engine.hpp"
  18 #include "src/kernel/EngineImpl.hpp"
  19 #include "src/simix/smx_private.h"
  20
  21 #include "src/include/simgrid/sg_config.h"
  22 #include "src/surf/xml/platf_private.hpp"
  23
  24 #include "src/surf/HostImpl.hpp"
  25 #include "src/surf/cpu_interface.hpp"
  26 #include "src/surf/network_interface.hpp"
  27
  28 #include "src/kernel/routing/AsCluster.hpp"
  29 #include "src/kernel/routing/AsClusterDragonfly.hpp"
  30 #include "src/kernel/routing/AsClusterFatTree.hpp"
  31 #include "src/kernel/routing/AsClusterTorus.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/AsImpl.hpp"
  36 #include "src/kernel/routing/AsNone.hpp"
  37 #include "src/kernel/routing/AsVivaldi.hpp"
  38 #include "src/kernel/routing/NetCard.hpp"
  39
  40 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  41
  42 XBT_PRIVATE xbt_dynar_t mount_list = nullptr;
  43
  44 namespace simgrid {
  45 namespace surf {
  46
  47 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
  48 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  49 simgrid::xbt::signal<void(void)> on_postparse;
  50
  51 }
  52 }
  53
  54 static int surf_parse_models_setup_already_called = 0;
  55
  56 /** The current AS in the parsing */
  57 static simgrid::kernel::routing::AsImpl *current_routing = nullptr;
  58 static simgrid::kernel::routing::AsImpl *routing_get_current()
  59 {
  60   return current_routing;
  61 }
  62
  63 /** Module management function: creates all internal data structures */
  64 void sg_platf_init() {
  65 }
  66
  67 /** Module management function: frees all internal data structures */
  68 void sg_platf_exit() {
  69   simgrid::surf::on_link.disconnect_all_slots();
  70   simgrid::surf::on_cluster.disconnect_all_slots();
  71   simgrid::surf::on_postparse.disconnect_all_slots();
  72
  73   /* make sure that we will reinit the models while loading the platf once reinited */
  74   surf_parse_models_setup_already_called = 0;
  75   surf_parse_lex_destroy();
  76 }
  77
  78 /** @brief Add an host to the current AS */
  79 void sg_platf_new_host(sg_platf_host_cbarg_t args)
  80 {
  81   simgrid::s4u::Host* host = routing_get_current()->createHost(args->id, &args->speed_per_pstate, args->core_amount);
  82
  83   new simgrid::surf::HostImpl(host, mount_list);
  84   xbt_lib_set(storage_lib, args->id, ROUTING_STORAGE_HOST_LEVEL, static_cast<void*>(mount_list));
  85   mount_list = nullptr;
  86
  87   if (args->properties) {
  88     xbt_dict_cursor_t cursor=nullptr;
  89     char *key,*data;
  90     xbt_dict_foreach (args->properties, cursor, key, data)
  91       host->setProperty(key, data);
  92     xbt_dict_free(&args->properties);
  93   }
  94
  95   /* Change from the defaults */
  96   if (args->state_trace)
  97     host->pimpl_cpu->setStateTrace(args->state_trace);
  98   if (args->speed_trace)
  99     host->pimpl_cpu->setSpeedTrace(args->speed_trace);
 100   if (args->pstate != 0)
 101     host->pimpl_cpu->setPState(args->pstate);
 102   if (args->coord && strcmp(args->coord, ""))
 103     new simgrid::kernel::routing::vivaldi::Coords(host, args->coord);
 104
 105   simgrid::s4u::Host::onCreation(*host);
 106
 107   if (TRACE_is_enabled() && TRACE_needs_platform())
 108     sg_instr_new_host(*host);
 109 }
 110
 111 /** @brief Add a "router" to the network element list */
 112 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 113 {
 114   using simgrid::kernel::routing::AsCluster;
 115   simgrid::kernel::routing::AsImpl* current_routing = routing_get_current();
 116
 117   if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 118     current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::base;
 119   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 120              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 121
 122   simgrid::kernel::routing::NetCard* netcard =
 123     new simgrid::kernel::routing::NetCard(router->id, simgrid::kernel::routing::NetCard::Type::Router, current_routing);
 124   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, netcard);
 125   XBT_DEBUG("Router '%s' has the id %d", router->id, netcard->id());
 126
 127   if (router->coord && strcmp(router->coord, "")) {
 128     unsigned int cursor;
 129     char*str;
 130
 131     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 132     /* Pre-parse the host coordinates */
 133     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 134     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
 135     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),nullptr);
 136     xbt_dynar_foreach(ctn_str,cursor, str) {
 137       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 138       xbt_dynar_push(ctn,&val);
 139     }
 140     xbt_dynar_free(&ctn_str);
 141     xbt_dynar_shrink(ctn, 0);
 142     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 143   }
 144
 145   auto cluster = dynamic_cast<AsCluster*>(current_routing);
 146   if(cluster != nullptr)
 147     cluster->router_ = static_cast<simgrid::kernel::routing::NetCard*>(xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL));
 148
 149   if (TRACE_is_enabled() && TRACE_needs_platform())
 150     sg_instr_new_router(router);
 151 }
 152
 153 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 154   std::vector<char*> names;
 155
 156   if (link->policy == SURF_LINK_FULLDUPLEX) {
 157     names.push_back(bprintf("%s_UP", link->id));
 158     names.push_back(bprintf("%s_DOWN", link->id));
 159   } else {
 160     names.push_back(xbt_strdup(link->id));
 161   }
 162   for (auto link_name : names) {
 163     Link* l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy);
 164
 165     if (link->properties) {
 166       xbt_dict_cursor_t cursor = nullptr;
 167       char *key, *data;
 168       xbt_dict_foreach (link->properties, cursor, key, data)
 169         l->setProperty(key, data);
 170       xbt_dict_free(&link->properties);
 171     }
 172
 173     if (link->latency_trace)
 174       l->setLatencyTrace(link->latency_trace);
 175     if (link->bandwidth_trace)
 176       l->setBandwidthTrace(link->bandwidth_trace);
 177     if (link->state_trace)
 178       l->setStateTrace(link->state_trace);
 179
 180     xbt_free(link_name);
 181   }
 182
 183   simgrid::surf::on_link(link);
 184 }
 185
 186 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 187 {
 188   using simgrid::kernel::routing::AsCluster;
 189   using simgrid::kernel::routing::AsClusterDragonfly;
 190   using simgrid::kernel::routing::AsClusterFatTree;
 191   using simgrid::kernel::routing::AsClusterTorus;
 192
 193   int rankId=0;
 194
 195   s_sg_platf_link_cbarg_t link;
 196
 197   // What an inventive way of initializing the AS that I have as ancestor :-(
 198   s_sg_platf_AS_cbarg_t AS;
 199   AS.id = cluster->id;
 200   switch (cluster->topology) {
 201   case SURF_CLUSTER_TORUS:
 202     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 203     break;
 204   case SURF_CLUSTER_DRAGONFLY:
 205     AS.routing = A_surfxml_AS_routing_ClusterDragonfly;
 206     break;
 207   case SURF_CLUSTER_FAT_TREE:
 208     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 209     break;
 210   default:
 211     AS.routing = A_surfxml_AS_routing_Cluster;
 212     break;
 213   }
 214   sg_platf_new_AS_begin(&AS);
 215   simgrid::kernel::routing::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
 216   current_as->parse_specific_arguments(cluster);
 217
 218   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 219     current_as->linkCountPerNode_++;
 220     current_as->hasLoopback_ = 1;
 221   }
 222
 223   if(cluster->limiter_link!=0){
 224     current_as->linkCountPerNode_++;
 225     current_as->hasLimiter_ = 1;
 226   }
 227
 228   for (int i : *cluster->radicals) {
 229     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 230     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 231
 232     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 233
 234     s_sg_platf_host_cbarg_t host;
 235     memset(&host, 0, sizeof(host));
 236     host.id = host_id;
 237     if ((cluster->properties != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 238       xbt_dict_cursor_t cursor=nullptr;
 239       char *key,*data;
 240       host.properties = xbt_dict_new_homogeneous(free);
 241
 242       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 243         xbt_dict_set(host.properties, key, xbt_strdup(data), nullptr);
 244       }
 245     }
 246
 247     host.speed_per_pstate.push_back(cluster->speed);
 248     host.pstate = 0;
 249     host.core_amount = cluster->core_amount;
 250     host.coord = "";
 251     sg_platf_new_host(&host);
 252     XBT_DEBUG("</host>");
 253
 254     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 255
 256     s_surf_parsing_link_up_down_t info_lim;
 257     s_surf_parsing_link_up_down_t info_loop;
 258     // All links are saved in a matrix;
 259     // every row describes a single node; every node may have multiple links.
 260     // the first column may store a link from x to x if p_has_loopback is set
 261     // the second column may store a limiter link if p_has_limiter is set
 262     // other columns are to store one or more link for the node
 263
 264     //add a loopback link
 265     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 266       char *tmp_link = bprintf("%s_loopback", link_id);
 267       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->loopback_bw);
 268
 269       memset(&link, 0, sizeof(link));
 270       link.id        = tmp_link;
 271       link.bandwidth = cluster->loopback_bw;
 272       link.latency   = cluster->loopback_lat;
 273       link.policy    = SURF_LINK_FATPIPE;
 274       sg_platf_new_link(&link);
 275       info_loop.linkUp = Link::byName(tmp_link);
 276       info_loop.linkDown = Link::byName(tmp_link);
 277       free(tmp_link);
 278
 279       auto as_cluster = static_cast<AsCluster*>(current_as);
 280       as_cluster->privateLinks_.insert({rankId*as_cluster->linkCountPerNode_, info_loop});
 281     }
 282
 283     //add a limiter link (shared link to account for maximal bandwidth of the node)
 284     if(cluster->limiter_link!=0){
 285       char *tmp_link = bprintf("%s_limiter", link_id);
 286       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 287
 288       memset(&link, 0, sizeof(link));
 289       link.id = tmp_link;
 290       link.bandwidth = cluster->limiter_link;
 291       link.latency = 0;
 292       link.policy = SURF_LINK_SHARED;
 293       sg_platf_new_link(&link);
 294       info_lim.linkUp = info_lim.linkDown = Link::byName(tmp_link);
 295       free(tmp_link);
 296       current_as->privateLinks_.insert(
 297           {rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_ , info_lim});
 298     }
 299
 300     //call the cluster function that adds the others links
 301     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 302       static_cast<AsClusterFatTree*>(current_as)->addProcessingNode(i);
 303     }
 304     else {
 305       current_as->create_links_for_node(cluster, i, rankId,
 306           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 307     }
 308     xbt_free(link_id);
 309     xbt_free(host_id);
 310     rankId++;
 311   }
 312
 313   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 314   // and it's very useful to connect clusters together
 315   XBT_DEBUG(" ");
 316   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 317   char *newid = nullptr;
 318   s_sg_platf_router_cbarg_t router;
 319   memset(&router, 0, sizeof(router));
 320   router.id = cluster->router_id;
 321   if (!router.id || !strcmp(router.id, ""))
 322     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 323   sg_platf_new_router(&router);
 324   current_as->router_ = (simgrid::kernel::routing::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 325   free(newid);
 326
 327   //Make the backbone
 328   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 329
 330     memset(&link, 0, sizeof(link));
 331     link.id        = bprintf("%s_backbone", cluster->id);
 332     link.bandwidth = cluster->bb_bw;
 333     link.latency   = cluster->bb_lat;
 334     link.policy    = cluster->bb_sharing_policy;
 335
 336     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 337     sg_platf_new_link(&link);
 338
 339     routing_cluster_add_backbone(Link::byName(link.id));
 340     free((char*)link.id);
 341   }
 342
 343   XBT_DEBUG("</AS>");
 344   sg_platf_new_AS_seal();
 345
 346   simgrid::surf::on_cluster(cluster);
 347   delete cluster->radicals;
 348 }
 349 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 350   simgrid::kernel::routing::AsCluster *cluster = dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 351
 352   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 353   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 354
 355   cluster->backbone_ = bb;
 356   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 357 }
 358
 359 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 360 {
 361   for (int radical : *cabinet->radicals) {
 362     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 363     s_sg_platf_host_cbarg_t host;
 364     memset(&host, 0, sizeof(host));
 365     host.pstate           = 0;
 366     host.core_amount      = 1;
 367     host.id               = hostname;
 368     host.speed_per_pstate.push_back(cabinet->speed);
 369     sg_platf_new_host(&host);
 370
 371     s_sg_platf_link_cbarg_t link;
 372     memset(&link, 0, sizeof(link));
 373     link.policy    = SURF_LINK_FULLDUPLEX;
 374     link.latency   = cabinet->lat;
 375     link.bandwidth = cabinet->bw;
 376     link.id        = bprintf("link_%s",hostname);
 377     sg_platf_new_link(&link);
 378     free((char*)link.id);
 379
 380     s_sg_platf_host_link_cbarg_t host_link;
 381     memset(&host_link, 0, sizeof(host_link));
 382     host_link.id        = hostname;
 383     host_link.link_up   = bprintf("link_%s_UP",hostname);
 384     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 385     sg_platf_new_hostlink(&host_link);
 386     free((char*)host_link.link_up);
 387     free((char*)host_link.link_down);
 388
 389     free(hostname);
 390   }
 391   delete cabinet->radicals;
 392 }
 393
 394 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 395 {
 396   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 397                "Refusing to add a second storage named \"%s\"", storage->id);
 398
 399   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 400   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 401
 402   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 403       storage->id,
 404       storage->type_id,
 405       storage->content);
 406
 407   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 408
 409   // if storage content is not specified use the content of storage_type if any
 410   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 411     storage->content = ((storage_type_t) stype)->content;
 412     storage->content_type = ((storage_type_t) stype)->content_type;
 413     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 414         storage->id,((storage_type_t) stype)->content_type,
 415         ((storage_type_t) stype)->type_id);
 416   }
 417
 418   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 419       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 420       "\n\t\tproperties '%p''\n",
 421       storage->id,
 422       ((storage_type_t) stype)->model,
 423       ((storage_type_t) stype)->type_id,
 424       storage->content,
 425       storage->content_type,
 426     storage->properties);
 427
 428   auto s = surf_storage_model->createStorage(storage->id, ((storage_type_t)stype)->type_id, storage->content,
 429                                              storage->content_type, storage->attach);
 430
 431   if (storage->properties) {
 432     xbt_dict_cursor_t cursor = nullptr;
 433     char *key, *data;
 434     xbt_dict_foreach (storage->properties, cursor, key, data)
 435       s->setProperty(key, data);
 436     xbt_dict_free(&storage->properties);
 437   }
 438 }
 439 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 440
 441   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 442                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 443
 444   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 445   stype->model = xbt_strdup(storage_type->model);
 446   stype->properties = storage_type->properties;
 447   stype->content = xbt_strdup(storage_type->content);
 448   stype->content_type = xbt_strdup(storage_type->content_type);
 449   stype->type_id = xbt_strdup(storage_type->id);
 450   stype->size = storage_type->size;
 451   stype->model_properties = storage_type->model_properties;
 452
 453   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 454       "content '%s', and content_type '%s'",
 455       stype->type_id,
 456       stype->model,
 457       storage_type->content,
 458       storage_type->content_type);
 459
 460   xbt_lib_set(storage_type_lib,
 461       stype->type_id,
 462       ROUTING_STORAGE_TYPE_LEVEL,
 463       (void *) stype);
 464 }
 465
 466 static void mount_free(void *p)
 467 {
 468   mount_t mnt = (mount_t) p;
 469   xbt_free(mnt->name);
 470 }
 471
 472 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 473   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 474       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 475
 476   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 477
 478   s_mount_t mnt;
 479   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 480   mnt.name = xbt_strdup(mount->name);
 481
 482   if(!mount_list){
 483     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 484     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 485   }
 486   xbt_dynar_push(mount_list, &mnt);
 487 }
 488
 489 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 490 {
 491   routing_get_current()->addRoute(route);
 492 }
 493
 494 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 495 {
 496   routing_get_current()->addBypassRoute(bypassRoute);
 497 }
 498
 499 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 500 {
 501   sg_host_t host = sg_host_by_name(process->host);
 502   if (!host) {
 503     // The requested host does not exist. Do a nice message to the user
 504     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 505     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 506     free(tmp);
 507     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 508     simgrid::s4u::Host* host;
 509     unsigned int cursor;
 510     xbt_dynar_foreach(all_hosts,cursor, host) {
 511       xbt_strbuff_append(msg,host->name().c_str());
 512       xbt_strbuff_append(msg,"', '");
 513       if (msg->used > 1024) {
 514         msg->data[msg->used-3]='\0';
 515         msg->used -= 3;
 516
 517         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 518         break;
 519       }
 520     }
 521     msg->data[msg->used-3]='\0';
 522     xbt_die("%s", msg->data);
 523   }
 524   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(process->function);
 525   xbt_assert(factory, "Function '%s' unknown", process->function);
 526
 527   double start_time = process->start_time;
 528   double kill_time  = process->kill_time;
 529   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 530
 531   std::vector<std::string> args(process->argv, process->argv + process->argc);
 532   std::function<void()> code = factory(std::move(args));
 533
 534   smx_process_arg_t arg = nullptr;
 535   smx_actor_t process_created = nullptr;
 536
 537   arg = new simgrid::simix::ProcessArg();
 538   arg->name = std::string(process->argv[0]);
 539   arg->code = code;
 540   arg->data = nullptr;
 541   arg->host = host;
 542   arg->kill_time = kill_time;
 543   arg->properties = current_property_set;
 544
 545   sg_host_simix(host)->boot_processes.push_back(arg);
 546
 547   if (start_time > SIMIX_get_clock()) {
 548
 549     arg = new simgrid::simix::ProcessArg();
 550     arg->name = std::string(process->argv[0]);
 551     arg->code = std::move(code);
 552     arg->data = nullptr;
 553     arg->host = host;
 554     arg->kill_time = kill_time;
 555     arg->properties = current_property_set;
 556
 557     XBT_DEBUG("Process %s@%s will be started at time %f",
 558       arg->name.c_str(), arg->host->name().c_str(), start_time);
 559     SIMIX_timer_set(start_time, [=]() {
 560       simix_global->create_process_function(
 561                                             arg->name.c_str(),
 562                                             std::move(arg->code),
 563                                             arg->data,
 564                                             arg->host,
 565                                             arg->kill_time,
 566                                             arg->properties,
 567                                             arg->auto_restart,
 568                                             nullptr);
 569       delete arg;
 570     });
 571   } else {                      // start_time <= SIMIX_get_clock()
 572     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->cname());
 573
 574     process_created = simix_global->create_process_function(
 575         arg->name.c_str(), std::move(code), nullptr,
 576         host, kill_time,
 577         current_property_set, auto_restart, nullptr);
 578
 579     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 580     if (!process_created) {
 581       return;
 582     }
 583   }
 584   current_property_set = nullptr;
 585 }
 586
 587 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 588 {
 589   using simgrid::kernel::routing::NetCard;
 590   using simgrid::kernel::routing::AsCluster;
 591
 592   char *host_id = bprintf("peer_%s", peer->id);
 593   char *router_id = bprintf("router_%s", peer->id);
 594
 595   XBT_DEBUG(" ");
 596
 597   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 598   s_sg_platf_AS_cbarg_t AS;
 599   AS.id      = peer->id;
 600   AS.routing = A_surfxml_AS_routing_Cluster;
 601   sg_platf_new_AS_begin(&AS);
 602
 603   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 604   s_sg_platf_host_cbarg_t host;
 605   memset(&host, 0, sizeof(host));
 606   host.id = host_id;
 607
 608   host.speed_per_pstate.push_back(peer->speed);
 609   host.pstate = 0;
 610   host.speed_trace = peer->availability_trace;
 611   host.state_trace = peer->state_trace;
 612   host.core_amount = 1;
 613   sg_platf_new_host(&host);
 614
 615   s_sg_platf_link_cbarg_t link;
 616   memset(&link, 0, sizeof(link));
 617   link.policy  = SURF_LINK_SHARED;
 618   link.latency = peer->lat;
 619
 620   char* link_up = bprintf("link_%s_UP",peer->id);
 621   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
 622   link.id = link_up;
 623   link.bandwidth = peer->bw_out;
 624   sg_platf_new_link(&link);
 625
 626   char* link_down = bprintf("link_%s_DOWN",peer->id);
 627   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
 628   link.id = link_down;
 629   link.bandwidth = peer->bw_in;
 630   sg_platf_new_link(&link);
 631
 632   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
 633   s_sg_platf_host_link_cbarg_t host_link;
 634   memset(&host_link, 0, sizeof(host_link));
 635   host_link.id        = host_id;
 636   host_link.link_up   = link_up;
 637   host_link.link_down = link_down;
 638   sg_platf_new_hostlink(&host_link);
 639   free(link_up);
 640   free(link_down);
 641
 642   XBT_DEBUG("<router id=\"%s\"/>", router_id);
 643   s_sg_platf_router_cbarg_t router;
 644   memset(&router, 0, sizeof(router));
 645   router.id = router_id;
 646   router.coord = peer->coord;
 647   sg_platf_new_router(&router);
 648
 649   XBT_DEBUG("</AS>");
 650   sg_platf_new_AS_seal();
 651   XBT_DEBUG(" ");
 652
 653   free(router_id);
 654   free(host_id);
 655 }
 656
 657 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 658
 659 void sg_platf_end() {
 660   simgrid::surf::on_postparse();
 661 }
 662
 663 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 664 static void surf_config_models_setup()
 665 {
 666   const char* host_model_name    = xbt_cfg_get_string("host/model");
 667   const char* vm_model_name      = xbt_cfg_get_string("vm/model");
 668   const char* network_model_name = xbt_cfg_get_string("network/model");
 669   const char* cpu_model_name     = xbt_cfg_get_string("cpu/model");
 670   const char* storage_model_name = xbt_cfg_get_string("storage/model");
 671
 672   /* The compound host model is needed when using non-default net/cpu models */
 673   if ((!xbt_cfg_is_default_value("network/model") || !xbt_cfg_is_default_value("cpu/model")) &&
 674       xbt_cfg_is_default_value("host/model")) {
 675     host_model_name = "compound";
 676     xbt_cfg_set_string("host/model", host_model_name);
 677   }
 678
 679   XBT_DEBUG("host model: %s", host_model_name);
 680   if (!strcmp(host_model_name, "compound")) {
 681     xbt_assert(cpu_model_name, "Set a cpu model to use with the 'compound' host model");
 682     xbt_assert(network_model_name, "Set a network model to use with the 'compound' host model");
 683
 684     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
 685     surf_cpu_model_description[cpu_id].model_init_preparse();
 686
 687     int network_id = find_model_description(surf_network_model_description, network_model_name);
 688     surf_network_model_description[network_id].model_init_preparse();
 689   }
 690
 691   XBT_DEBUG("Call host_model_init");
 692   int host_id = find_model_description(surf_host_model_description, host_model_name);
 693   surf_host_model_description[host_id].model_init_preparse();
 694
 695   XBT_DEBUG("Call vm_model_init");
 696   int vm_id = find_model_description(surf_vm_model_description, vm_model_name);
 697   surf_vm_model_description[vm_id].model_init_preparse();
 698
 699   XBT_DEBUG("Call storage_model_init");
 700   int storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 701   surf_storage_model_description[storage_id].model_init_preparse();
 702 }
 703
 704 /**
 705  * \brief Add an AS to the platform
 706  *
 707  * Add a new autonomous system to the platform. Any elements (such as host,
 708  * router or sub-AS) added after this call and before the corresponding call
 709  * to sg_platf_new_AS_seal() will be added to this AS.
 710  *
 711  * Once this function was called, the configuration concerning the used
 712  * models cannot be changed anymore.
 713  *
 714  * @param AS the parameters defining the AS to build.
 715  */
 716 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 717 {
 718   if (!surf_parse_models_setup_already_called) {
 719     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 720      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 721      *
 722      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 723      * (FIXME: check it out by creating a file beginning with one of these tags)
 724      * but cluster and peer create ASes internally, so putting the code in there is ok.
 725      */
 726     surf_parse_models_setup_already_called = 1;
 727     surf_config_models_setup();
 728   }
 729
 730   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 731                             * any further config now that we created some real content */
 732
 733
 734   /* search the routing model */
 735   simgrid::kernel::routing::AsImpl *new_as = nullptr;
 736   switch(AS->routing){
 737     case A_surfxml_AS_routing_Cluster:
 738       new_as = new simgrid::kernel::routing::AsCluster(current_routing, AS->id);
 739       break;
 740     case A_surfxml_AS_routing_ClusterDragonfly:
 741       new_as = new simgrid::kernel::routing::AsClusterDragonfly(current_routing, AS->id);
 742       break;
 743     case A_surfxml_AS_routing_ClusterTorus:
 744       new_as = new simgrid::kernel::routing::AsClusterTorus(current_routing, AS->id);
 745       break;
 746     case A_surfxml_AS_routing_ClusterFatTree:
 747       new_as = new simgrid::kernel::routing::AsClusterFatTree(current_routing, AS->id);
 748       break;
 749     case A_surfxml_AS_routing_Dijkstra:
 750       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 0);
 751       break;
 752     case A_surfxml_AS_routing_DijkstraCache:
 753       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 1);
 754       break;
 755     case A_surfxml_AS_routing_Floyd:
 756       new_as = new simgrid::kernel::routing::AsFloyd(current_routing, AS->id);
 757       break;
 758     case A_surfxml_AS_routing_Full:
 759       new_as = new simgrid::kernel::routing::AsFull(current_routing, AS->id);
 760       break;
 761     case A_surfxml_AS_routing_None:
 762       new_as = new simgrid::kernel::routing::AsNone(current_routing, AS->id);
 763       break;
 764     case A_surfxml_AS_routing_Vivaldi:
 765       new_as = new simgrid::kernel::routing::AsVivaldi(current_routing, AS->id);
 766       break;
 767     default:
 768       xbt_die("Not a valid model!");
 769       break;
 770   }
 771
 772   if (current_routing == nullptr) { /* it is the first one */
 773     xbt_assert(simgrid::s4u::Engine::instance()->pimpl->rootAs_ == nullptr,
 774                "All defined components must belong to a AS");
 775     simgrid::s4u::Engine::instance()->pimpl->rootAs_ = new_as;
 776
 777   } else {
 778     /* set the father behavior */
 779     if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 780       current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::recursive;
 781     /* add to the sons dictionary */
 782     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, nullptr);
 783   }
 784
 785   /* set the new current component of the tree */
 786   current_routing = new_as;
 787
 788   simgrid::kernel::routing::asCreatedCallbacks(new_as);
 789   if (TRACE_is_enabled())
 790     sg_instr_AS_begin(AS);
 791
 792   return new_as;
 793 }
 794
 795 /**
 796  * \brief Specify that the description of the current AS is finished
 797  *
 798  * Once you've declared all the content of your AS, you have to seal
 799  * it with this call. Your AS is not usable until you call this function.
 800  */
 801 void sg_platf_new_AS_seal()
 802 {
 803   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 804   current_routing->seal();
 805   current_routing = static_cast<simgrid::kernel::routing::AsImpl*>(current_routing->father());
 806
 807   if (TRACE_is_enabled())
 808     sg_instr_AS_end();
 809 }
 810
 811 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 812 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 813 {
 814   simgrid::kernel::routing::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 815   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 816   xbt_assert(dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing),
 817       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 818
 819   s_surf_parsing_link_up_down_t link_up_down;
 820   link_up_down.linkUp = Link::byName(hostlink->link_up);
 821   link_up_down.linkDown = Link::byName(hostlink->link_down);
 822
 823   xbt_assert(link_up_down.linkUp, "Link '%s' not found!",hostlink->link_up);
 824   xbt_assert(link_up_down.linkDown, "Link '%s' not found!",hostlink->link_down);
 825
 826   auto as_cluster = static_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 827
 828   if (as_cluster->privateLinks_.find(netcard->id()) != as_cluster->privateLinks_.end())
 829     surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
 830
 831   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name().c_str(), netcard->id());
 832   as_cluster->privateLinks_.insert({netcard->id(), link_up_down});
 833 }