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/ClusterZone.hpp"
  29 #include "src/kernel/routing/DragonflyZone.hpp"
  30 #include "src/kernel/routing/FatTreeZone.hpp"
  31 #include "src/kernel/routing/TorusZone.hpp"
  32 #include "src/kernel/routing/DijkstraZone.hpp"
  33 #include "src/kernel/routing/FloydZone.hpp"
  34 #include "src/kernel/routing/FullZone.hpp"
  35 #include "src/kernel/routing/NetZoneImpl.hpp"
  36 #include "src/kernel/routing/EmptyZone.hpp"
  37 #include "src/kernel/routing/VivaldiZone.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->pimpl_netcard, 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   simgrid::kernel::routing::AsImpl* current_routing = routing_get_current();
 115
 116   if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 117     current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::base;
 118   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 119              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 120
 121   simgrid::kernel::routing::NetCard* netcard =
 122     new simgrid::kernel::routing::NetCard(router->id, simgrid::kernel::routing::NetCard::Type::Router, current_routing);
 123   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, netcard);
 124   XBT_DEBUG("Router '%s' has the id %d", router->id, netcard->id());
 125
 126   if (router->coord && strcmp(router->coord, ""))
 127     new simgrid::kernel::routing::vivaldi::Coords(netcard, router->coord);
 128
 129   auto cluster = dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 130   if(cluster != nullptr)
 131     cluster->router_ = static_cast<simgrid::kernel::routing::NetCard*>(xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL));
 132
 133   if (TRACE_is_enabled() && TRACE_needs_platform())
 134     sg_instr_new_router(router);
 135 }
 136
 137 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 138   std::vector<char*> names;
 139
 140   if (link->policy == SURF_LINK_FULLDUPLEX) {
 141     names.push_back(bprintf("%s_UP", link->id));
 142     names.push_back(bprintf("%s_DOWN", link->id));
 143   } else {
 144     names.push_back(xbt_strdup(link->id));
 145   }
 146   for (auto link_name : names) {
 147     Link* l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy);
 148
 149     if (link->properties) {
 150       xbt_dict_cursor_t cursor = nullptr;
 151       char *key, *data;
 152       xbt_dict_foreach (link->properties, cursor, key, data)
 153         l->setProperty(key, data);
 154       xbt_dict_free(&link->properties);
 155     }
 156
 157     if (link->latency_trace)
 158       l->setLatencyTrace(link->latency_trace);
 159     if (link->bandwidth_trace)
 160       l->setBandwidthTrace(link->bandwidth_trace);
 161     if (link->state_trace)
 162       l->setStateTrace(link->state_trace);
 163
 164     xbt_free(link_name);
 165   }
 166
 167   simgrid::surf::on_link(link);
 168 }
 169
 170 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 171 {
 172   using simgrid::kernel::routing::AsCluster;
 173   using simgrid::kernel::routing::AsClusterDragonfly;
 174   using simgrid::kernel::routing::AsClusterFatTree;
 175   using simgrid::kernel::routing::AsClusterTorus;
 176
 177   int rankId=0;
 178
 179   s_sg_platf_link_cbarg_t link;
 180
 181   // What an inventive way of initializing the AS that I have as ancestor :-(
 182   s_sg_platf_AS_cbarg_t AS;
 183   AS.id = cluster->id;
 184   switch (cluster->topology) {
 185   case SURF_CLUSTER_TORUS:
 186     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 187     break;
 188   case SURF_CLUSTER_DRAGONFLY:
 189     AS.routing = A_surfxml_AS_routing_ClusterDragonfly;
 190     break;
 191   case SURF_CLUSTER_FAT_TREE:
 192     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 193     break;
 194   default:
 195     AS.routing = A_surfxml_AS_routing_Cluster;
 196     break;
 197   }
 198   sg_platf_new_AS_begin(&AS);
 199   simgrid::kernel::routing::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
 200   current_as->parse_specific_arguments(cluster);
 201
 202   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 203     current_as->linkCountPerNode_++;
 204     current_as->hasLoopback_ = 1;
 205   }
 206
 207   if(cluster->limiter_link!=0){
 208     current_as->linkCountPerNode_++;
 209     current_as->hasLimiter_ = 1;
 210   }
 211
 212   for (int i : *cluster->radicals) {
 213     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 214     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 215
 216     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 217
 218     s_sg_platf_host_cbarg_t host;
 219     memset(&host, 0, sizeof(host));
 220     host.id = host_id;
 221     if ((cluster->properties != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 222       xbt_dict_cursor_t cursor=nullptr;
 223       char *key,*data;
 224       host.properties = xbt_dict_new_homogeneous(free);
 225
 226       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 227         xbt_dict_set(host.properties, key, xbt_strdup(data), nullptr);
 228       }
 229     }
 230
 231     host.speed_per_pstate.push_back(cluster->speed);
 232     host.pstate = 0;
 233     host.core_amount = cluster->core_amount;
 234     host.coord = "";
 235     sg_platf_new_host(&host);
 236     XBT_DEBUG("</host>");
 237
 238     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 239
 240     // All links are saved in a matrix;
 241     // every row describes a single node; every node may have multiple links.
 242     // the first column may store a link from x to x if p_has_loopback is set
 243     // the second column may store a limiter link if p_has_limiter is set
 244     // other columns are to store one or more link for the node
 245
 246     //add a loopback link
 247     Link* linkUp   = nullptr;
 248     Link* linkDown = nullptr;
 249     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 250       char *tmp_link = bprintf("%s_loopback", link_id);
 251       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->loopback_bw);
 252
 253       memset(&link, 0, sizeof(link));
 254       link.id        = tmp_link;
 255       link.bandwidth = cluster->loopback_bw;
 256       link.latency   = cluster->loopback_lat;
 257       link.policy    = SURF_LINK_FATPIPE;
 258       sg_platf_new_link(&link);
 259       linkUp   = Link::byName(tmp_link);
 260       linkDown = Link::byName(tmp_link);
 261       free(tmp_link);
 262
 263       auto as_cluster = static_cast<AsCluster*>(current_as);
 264       as_cluster->privateLinks_.insert({rankId * as_cluster->linkCountPerNode_, {linkUp, linkDown}});
 265     }
 266
 267     //add a limiter link (shared link to account for maximal bandwidth of the node)
 268     linkUp   = nullptr;
 269     linkDown = nullptr;
 270     if(cluster->limiter_link!=0){
 271       char *tmp_link = bprintf("%s_limiter", link_id);
 272       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 273
 274       memset(&link, 0, sizeof(link));
 275       link.id = tmp_link;
 276       link.bandwidth = cluster->limiter_link;
 277       link.latency = 0;
 278       link.policy = SURF_LINK_SHARED;
 279       sg_platf_new_link(&link);
 280       linkUp = linkDown = Link::byName(tmp_link);
 281       free(tmp_link);
 282       current_as->privateLinks_.insert(
 283           {rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_, {linkUp, linkDown}});
 284     }
 285
 286     //call the cluster function that adds the others links
 287     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 288       static_cast<AsClusterFatTree*>(current_as)->addProcessingNode(i);
 289     }
 290     else {
 291       current_as->create_links_for_node(cluster, i, rankId,
 292           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 293     }
 294     xbt_free(link_id);
 295     xbt_free(host_id);
 296     rankId++;
 297   }
 298
 299   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 300   // and it's very useful to connect clusters together
 301   XBT_DEBUG(" ");
 302   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 303   char *newid = nullptr;
 304   s_sg_platf_router_cbarg_t router;
 305   memset(&router, 0, sizeof(router));
 306   router.id = cluster->router_id;
 307   if (!router.id || !strcmp(router.id, ""))
 308     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 309   sg_platf_new_router(&router);
 310   current_as->router_ = (simgrid::kernel::routing::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 311   free(newid);
 312
 313   //Make the backbone
 314   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 315
 316     memset(&link, 0, sizeof(link));
 317     link.id        = bprintf("%s_backbone", cluster->id);
 318     link.bandwidth = cluster->bb_bw;
 319     link.latency   = cluster->bb_lat;
 320     link.policy    = cluster->bb_sharing_policy;
 321
 322     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 323     sg_platf_new_link(&link);
 324
 325     routing_cluster_add_backbone(Link::byName(link.id));
 326     free((char*)link.id);
 327   }
 328
 329   XBT_DEBUG("</AS>");
 330   sg_platf_new_AS_seal();
 331
 332   simgrid::surf::on_cluster(cluster);
 333   delete cluster->radicals;
 334 }
 335 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 336   simgrid::kernel::routing::AsCluster *cluster = dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 337
 338   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 339   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 340
 341   cluster->backbone_ = bb;
 342   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 343 }
 344
 345 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 346 {
 347   for (int radical : *cabinet->radicals) {
 348     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 349     s_sg_platf_host_cbarg_t host;
 350     memset(&host, 0, sizeof(host));
 351     host.pstate           = 0;
 352     host.core_amount      = 1;
 353     host.id               = hostname;
 354     host.speed_per_pstate.push_back(cabinet->speed);
 355     sg_platf_new_host(&host);
 356
 357     s_sg_platf_link_cbarg_t link;
 358     memset(&link, 0, sizeof(link));
 359     link.policy    = SURF_LINK_FULLDUPLEX;
 360     link.latency   = cabinet->lat;
 361     link.bandwidth = cabinet->bw;
 362     link.id        = bprintf("link_%s",hostname);
 363     sg_platf_new_link(&link);
 364     free((char*)link.id);
 365
 366     s_sg_platf_host_link_cbarg_t host_link;
 367     memset(&host_link, 0, sizeof(host_link));
 368     host_link.id        = hostname;
 369     host_link.link_up   = bprintf("link_%s_UP",hostname);
 370     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 371     sg_platf_new_hostlink(&host_link);
 372     free((char*)host_link.link_up);
 373     free((char*)host_link.link_down);
 374
 375     free(hostname);
 376   }
 377   delete cabinet->radicals;
 378 }
 379
 380 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 381 {
 382   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 383                "Refusing to add a second storage named \"%s\"", storage->id);
 384
 385   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 386   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 387
 388   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 389       storage->id,
 390       storage->type_id,
 391       storage->content);
 392
 393   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 394
 395   // if storage content is not specified use the content of storage_type if any
 396   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 397     storage->content = ((storage_type_t) stype)->content;
 398     storage->content_type = ((storage_type_t) stype)->content_type;
 399     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 400         storage->id,((storage_type_t) stype)->content_type,
 401         ((storage_type_t) stype)->type_id);
 402   }
 403
 404   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 405       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 406       "\n\t\tproperties '%p''\n",
 407       storage->id,
 408       ((storage_type_t) stype)->model,
 409       ((storage_type_t) stype)->type_id,
 410       storage->content,
 411       storage->content_type,
 412     storage->properties);
 413
 414   auto s = surf_storage_model->createStorage(storage->id, ((storage_type_t)stype)->type_id, storage->content,
 415                                              storage->content_type, storage->attach);
 416
 417   if (storage->properties) {
 418     xbt_dict_cursor_t cursor = nullptr;
 419     char *key, *data;
 420     xbt_dict_foreach (storage->properties, cursor, key, data)
 421       s->setProperty(key, data);
 422     xbt_dict_free(&storage->properties);
 423   }
 424 }
 425 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 426
 427   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 428                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 429
 430   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 431   stype->model = xbt_strdup(storage_type->model);
 432   stype->properties = storage_type->properties;
 433   stype->content = xbt_strdup(storage_type->content);
 434   stype->content_type = xbt_strdup(storage_type->content_type);
 435   stype->type_id = xbt_strdup(storage_type->id);
 436   stype->size = storage_type->size;
 437   stype->model_properties = storage_type->model_properties;
 438
 439   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 440       "content '%s', and content_type '%s'",
 441       stype->type_id,
 442       stype->model,
 443       storage_type->content,
 444       storage_type->content_type);
 445
 446   xbt_lib_set(storage_type_lib,
 447       stype->type_id,
 448       ROUTING_STORAGE_TYPE_LEVEL,
 449       (void *) stype);
 450 }
 451
 452 static void mount_free(void *p)
 453 {
 454   mount_t mnt = (mount_t) p;
 455   xbt_free(mnt->name);
 456 }
 457
 458 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 459   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 460       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 461
 462   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 463
 464   s_mount_t mnt;
 465   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 466   mnt.name = xbt_strdup(mount->name);
 467
 468   if(!mount_list){
 469     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 470     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 471   }
 472   xbt_dynar_push(mount_list, &mnt);
 473 }
 474
 475 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 476 {
 477   routing_get_current()->addRoute(route);
 478 }
 479
 480 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 481 {
 482   routing_get_current()->addBypassRoute(bypassRoute);
 483 }
 484
 485 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 486 {
 487   sg_host_t host = sg_host_by_name(process->host);
 488   if (!host) {
 489     // The requested host does not exist. Do a nice message to the user
 490     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 491     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 492     free(tmp);
 493     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 494     simgrid::s4u::Host* host;
 495     unsigned int cursor;
 496     xbt_dynar_foreach(all_hosts,cursor, host) {
 497       xbt_strbuff_append(msg, host->cname());
 498       xbt_strbuff_append(msg,"', '");
 499       if (msg->used > 1024) {
 500         msg->data[msg->used-3]='\0';
 501         msg->used -= 3;
 502
 503         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 504         break;
 505       }
 506     }
 507     msg->data[msg->used-3]='\0';
 508     xbt_die("%s", msg->data);
 509   }
 510   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(process->function);
 511   xbt_assert(factory, "Function '%s' unknown", process->function);
 512
 513   double start_time = process->start_time;
 514   double kill_time  = process->kill_time;
 515   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 516
 517   std::vector<std::string> args(process->argv, process->argv + process->argc);
 518   std::function<void()> code = factory(std::move(args));
 519
 520   smx_process_arg_t arg = nullptr;
 521   smx_actor_t process_created = nullptr;
 522
 523   arg = new simgrid::simix::ProcessArg();
 524   arg->name = std::string(process->argv[0]);
 525   arg->code = code;
 526   arg->data = nullptr;
 527   arg->host = host;
 528   arg->kill_time = kill_time;
 529   arg->properties = current_property_set;
 530
 531   sg_host_simix(host)->boot_processes.push_back(arg);
 532
 533   if (start_time > SIMIX_get_clock()) {
 534
 535     arg = new simgrid::simix::ProcessArg();
 536     arg->name = std::string(process->argv[0]);
 537     arg->code = std::move(code);
 538     arg->data = nullptr;
 539     arg->host = host;
 540     arg->kill_time = kill_time;
 541     arg->properties = current_property_set;
 542
 543     XBT_DEBUG("Process %s@%s will be started at time %f", arg->name.c_str(), arg->host->cname(), start_time);
 544     SIMIX_timer_set(start_time, [=]() {
 545       simix_global->create_process_function(
 546                                             arg->name.c_str(),
 547                                             std::move(arg->code),
 548                                             arg->data,
 549                                             arg->host,
 550                                             arg->kill_time,
 551                                             arg->properties,
 552                                             arg->auto_restart,
 553                                             nullptr);
 554       delete arg;
 555     });
 556   } else {                      // start_time <= SIMIX_get_clock()
 557     XBT_DEBUG("Starting Process %s(%s) right now", arg->name.c_str(), host->cname());
 558
 559     process_created = simix_global->create_process_function(
 560         arg->name.c_str(), std::move(code), nullptr,
 561         host, kill_time,
 562         current_property_set, auto_restart, nullptr);
 563
 564     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 565     if (!process_created) {
 566       return;
 567     }
 568   }
 569   current_property_set = nullptr;
 570 }
 571
 572 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 573 {
 574   simgrid::kernel::routing::AsVivaldi* as = dynamic_cast<simgrid::kernel::routing::AsVivaldi*>(current_routing);
 575   xbt_assert(as, "<peer> tag can only be used in Vivaldi ASes");
 576
 577   std::vector<double> speedPerPstate;
 578   speedPerPstate.push_back(peer->speed);
 579   simgrid::s4u::Host* host = as->createHost(peer->id, &speedPerPstate, 1);
 580
 581   as->setPeerLink(host->pimpl_netcard, peer->bw_in, peer->bw_out, peer->lat, peer->coord);
 582   simgrid::s4u::Host::onCreation(*host);
 583
 584   /* Change from the defaults */
 585   if (peer->state_trace)
 586     host->pimpl_cpu->setStateTrace(peer->state_trace);
 587   if (peer->speed_trace)
 588     host->pimpl_cpu->setSpeedTrace(peer->speed_trace);
 589 }
 590
 591 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 592
 593 void sg_platf_end() {
 594   simgrid::surf::on_postparse();
 595 }
 596
 597 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 598 static void surf_config_models_setup()
 599 {
 600   const char* host_model_name    = xbt_cfg_get_string("host/model");
 601   const char* network_model_name = xbt_cfg_get_string("network/model");
 602   const char* cpu_model_name     = xbt_cfg_get_string("cpu/model");
 603   const char* storage_model_name = xbt_cfg_get_string("storage/model");
 604
 605   /* The compound host model is needed when using non-default net/cpu models */
 606   if ((!xbt_cfg_is_default_value("network/model") || !xbt_cfg_is_default_value("cpu/model")) &&
 607       xbt_cfg_is_default_value("host/model")) {
 608     host_model_name = "compound";
 609     xbt_cfg_set_string("host/model", host_model_name);
 610   }
 611
 612   XBT_DEBUG("host model: %s", host_model_name);
 613   if (!strcmp(host_model_name, "compound")) {
 614     xbt_assert(cpu_model_name, "Set a cpu model to use with the 'compound' host model");
 615     xbt_assert(network_model_name, "Set a network model to use with the 'compound' host model");
 616
 617     int cpu_id = find_model_description(surf_cpu_model_description, cpu_model_name);
 618     surf_cpu_model_description[cpu_id].model_init_preparse();
 619
 620     int network_id = find_model_description(surf_network_model_description, network_model_name);
 621     surf_network_model_description[network_id].model_init_preparse();
 622   }
 623
 624   XBT_DEBUG("Call host_model_init");
 625   int host_id = find_model_description(surf_host_model_description, host_model_name);
 626   surf_host_model_description[host_id].model_init_preparse();
 627
 628   XBT_DEBUG("Call vm_model_init");
 629   surf_vm_model_init_HL13();
 630
 631   XBT_DEBUG("Call storage_model_init");
 632   int storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 633   surf_storage_model_description[storage_id].model_init_preparse();
 634 }
 635
 636 /**
 637  * \brief Add an AS to the platform
 638  *
 639  * Add a new autonomous system to the platform. Any elements (such as host,
 640  * router or sub-AS) added after this call and before the corresponding call
 641  * to sg_platf_new_AS_seal() will be added to this AS.
 642  *
 643  * Once this function was called, the configuration concerning the used
 644  * models cannot be changed anymore.
 645  *
 646  * @param AS the parameters defining the AS to build.
 647  */
 648 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 649 {
 650   if (!surf_parse_models_setup_already_called) {
 651     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 652      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 653      *
 654      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 655      * (FIXME: check it out by creating a file beginning with one of these tags)
 656      * but cluster and peer create ASes internally, so putting the code in there is ok.
 657      */
 658     surf_parse_models_setup_already_called = 1;
 659     surf_config_models_setup();
 660   }
 661
 662   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 663                             * any further config now that we created some real content */
 664
 665
 666   /* search the routing model */
 667   simgrid::kernel::routing::AsImpl *new_as = nullptr;
 668   switch(AS->routing){
 669     case A_surfxml_AS_routing_Cluster:
 670       new_as = new simgrid::kernel::routing::AsCluster(current_routing, AS->id);
 671       break;
 672     case A_surfxml_AS_routing_ClusterDragonfly:
 673       new_as = new simgrid::kernel::routing::AsClusterDragonfly(current_routing, AS->id);
 674       break;
 675     case A_surfxml_AS_routing_ClusterTorus:
 676       new_as = new simgrid::kernel::routing::AsClusterTorus(current_routing, AS->id);
 677       break;
 678     case A_surfxml_AS_routing_ClusterFatTree:
 679       new_as = new simgrid::kernel::routing::AsClusterFatTree(current_routing, AS->id);
 680       break;
 681     case A_surfxml_AS_routing_Dijkstra:
 682       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 0);
 683       break;
 684     case A_surfxml_AS_routing_DijkstraCache:
 685       new_as = new simgrid::kernel::routing::AsDijkstra(current_routing, AS->id, 1);
 686       break;
 687     case A_surfxml_AS_routing_Floyd:
 688       new_as = new simgrid::kernel::routing::AsFloyd(current_routing, AS->id);
 689       break;
 690     case A_surfxml_AS_routing_Full:
 691       new_as = new simgrid::kernel::routing::AsFull(current_routing, AS->id);
 692       break;
 693     case A_surfxml_AS_routing_None:
 694       new_as = new simgrid::kernel::routing::AsNone(current_routing, AS->id);
 695       break;
 696     case A_surfxml_AS_routing_Vivaldi:
 697       new_as = new simgrid::kernel::routing::AsVivaldi(current_routing, AS->id);
 698       break;
 699     default:
 700       xbt_die("Not a valid model!");
 701       break;
 702   }
 703
 704   if (current_routing == nullptr) { /* it is the first one */
 705     xbt_assert(simgrid::s4u::Engine::instance()->pimpl->rootAs_ == nullptr,
 706                "All defined components must belong to a AS");
 707     simgrid::s4u::Engine::instance()->pimpl->rootAs_ = new_as;
 708
 709   } else {
 710     /* set the father behavior */
 711     if (current_routing->hierarchy_ == simgrid::kernel::routing::AsImpl::RoutingMode::unset)
 712       current_routing->hierarchy_ = simgrid::kernel::routing::AsImpl::RoutingMode::recursive;
 713     /* add to the sons dictionary */
 714     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, nullptr);
 715   }
 716
 717   /* set the new current component of the tree */
 718   current_routing = new_as;
 719
 720   if (TRACE_is_enabled())
 721     sg_instr_AS_begin(AS);
 722
 723   return new_as;
 724 }
 725
 726 /**
 727  * \brief Specify that the description of the current AS is finished
 728  *
 729  * Once you've declared all the content of your AS, you have to seal
 730  * it with this call. Your AS is not usable until you call this function.
 731  */
 732 void sg_platf_new_AS_seal()
 733 {
 734   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 735   current_routing->seal();
 736   current_routing = static_cast<simgrid::kernel::routing::AsImpl*>(current_routing->father());
 737
 738   if (TRACE_is_enabled())
 739     sg_instr_AS_end();
 740 }
 741
 742 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 743 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 744 {
 745   simgrid::kernel::routing::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 746   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 747   xbt_assert(dynamic_cast<simgrid::kernel::routing::AsCluster*>(current_routing),
 748       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 749
 750   simgrid::surf::Link* linkUp   = Link::byName(hostlink->link_up);
 751   simgrid::surf::Link* linkDown = Link::byName(hostlink->link_down);
 752
 753   xbt_assert(linkUp, "Link '%s' not found!", hostlink->link_up);
 754   xbt_assert(linkDown, "Link '%s' not found!", hostlink->link_down);
 755
 756   auto as_cluster = static_cast<simgrid::kernel::routing::AsCluster*>(current_routing);
 757
 758   if (as_cluster->privateLinks_.find(netcard->id()) != as_cluster->privateLinks_.end())
 759     surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
 760
 761   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->cname(), netcard->id());
 762   as_cluster->privateLinks_.insert({netcard->id(), {linkUp, linkDown}});
 763 }
 764
 765 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace)
 766 {
 767   tmgr_trace_t tmgr_trace;
 768   if (trace->file && strcmp(trace->file, "") != 0) {
 769     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 770   } else {
 771     xbt_assert(strcmp(trace->pc_data, ""),
 772         "Trace '%s' must have either a content, or point to a file on disk.",trace->id);
 773     tmgr_trace = tmgr_trace_new_from_string(trace->id, trace->pc_data, trace->periodicity);
 774   }
 775   xbt_dict_set(traces_set_list, trace->id, static_cast<void*>(tmgr_trace), nullptr);
 776 }