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/signal.hpp>
  13 #include "src/surf/HostImpl.hpp"
  14 #include "surf/surf.h"
  15
  16 #include "src/simix/smx_private.h"
  17
  18 #include "src/include/simgrid/sg_config.h"
  19 #include "src/surf/xml/platf_private.hpp"
  20
  21 #include "src/surf/cpu_interface.hpp"
  22 #include "src/surf/network_interface.hpp"
  23 #include "surf/surf_routing.h" // FIXME: brain dead public header
  24 #include "src/surf/AsImpl.hpp"
  25
  26 #include "src/surf/surf_routing_cluster.hpp"
  27 #include "src/surf/surf_routing_cluster_torus.hpp"
  28 #include "src/surf/surf_routing_cluster_fat_tree.hpp"
  29 #include "src/surf/surf_routing_dijkstra.hpp"
  30 #include "src/surf/surf_routing_floyd.hpp"
  31 #include "src/surf/surf_routing_full.hpp"
  32 #include "src/surf/surf_routing_vivaldi.hpp"
  33
  34 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  35
  36 XBT_PRIVATE xbt_dynar_t mount_list = NULL;
  37
  38 namespace simgrid {
  39 namespace surf {
  40
  41 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
  42 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  43 simgrid::xbt::signal<void(void)> on_postparse;
  44
  45 }
  46 }
  47
  48 static int surf_parse_models_setup_already_called = 0;
  49
  50 /** The current AS in the parsing */
  51 static simgrid::surf::AsImpl *current_routing = NULL;
  52 static simgrid::surf::AsImpl* routing_get_current()
  53 {
  54   return current_routing;
  55 }
  56
  57 /** Module management function: creates all internal data structures */
  58 void sg_platf_init(void) {
  59 }
  60
  61 /** Module management function: frees all internal data structures */
  62 void sg_platf_exit(void) {
  63   simgrid::surf::on_link.disconnect_all_slots();
  64   simgrid::surf::on_cluster.disconnect_all_slots();
  65   simgrid::surf::on_postparse.disconnect_all_slots();
  66
  67   /* make sure that we will reinit the models while loading the platf once reinited */
  68   surf_parse_models_setup_already_called = 0;
  69   surf_parse_lex_destroy();
  70 }
  71
  72 /** @brief Add an "host" to the current AS */
  73 void sg_platf_new_host(sg_platf_host_cbarg_t host)
  74 {
  75   xbt_assert(! sg_host_by_name(host->id),
  76       "Refusing to create a second host named '%s'.", host->id);
  77
  78   simgrid::surf::AsImpl* current_routing = routing_get_current();
  79   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
  80     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
  81
  82   simgrid::surf::NetCard *netcard =
  83       new simgrid::surf::NetCardImpl(host->id, SURF_NETWORK_ELEMENT_HOST, current_routing);
  84
  85   netcard->setId(current_routing->addComponent(netcard));
  86   sg_host_t h = simgrid::s4u::Host::by_name_or_create(host->id);
  87   h->pimpl_netcard = netcard;
  88   simgrid::surf::netcardCreatedCallbacks(netcard);
  89
  90   if(mount_list){
  91     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
  92     mount_list = NULL;
  93   }
  94
  95   if (host->coord && strcmp(host->coord, "")) {
  96     unsigned int cursor;
  97     char*str;
  98
  99     if (!COORD_HOST_LEVEL)
 100       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 101     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 102     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 103     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 104     xbt_dynar_foreach(ctn_str,cursor, str) {
 105       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 106       xbt_dynar_push(ctn,&val);
 107     }
 108     xbt_dynar_shrink(ctn, 0);
 109     xbt_dynar_free(&ctn_str);
 110     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
 111     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 112   }
 113
 114
 115   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h,
 116       host->speed_peak,
 117       host->speed_trace,
 118       host->core_amount,
 119       host->state_trace);
 120   surf_host_model->createHost(host->id, netcard, cpu, host->properties)->attach(h);
 121
 122   if (host->pstate != 0)
 123     cpu->setPState(host->pstate);
 124
 125   simgrid::s4u::Host::onCreation(*h);
 126
 127   if (TRACE_is_enabled() && TRACE_needs_platform())
 128     sg_instr_new_host(host);
 129 }
 130
 131 /**
 132  * \brief Add a "router" to the network element list
 133  */
 134 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 135 {
 136   simgrid::surf::AsImpl* current_routing = routing_get_current();
 137
 138   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
 139     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
 140   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 141              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 142
 143   simgrid::surf::NetCard *netcard = new simgrid::surf::NetCardImpl(router->id, SURF_NETWORK_ELEMENT_ROUTER, current_routing);
 144   netcard->setId(current_routing->addComponent(netcard));
 145   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) netcard);
 146   XBT_DEBUG("Having set name '%s' id '%d'", router->id, netcard->id());
 147   simgrid::surf::netcardCreatedCallbacks(netcard);
 148
 149   if (router->coord && strcmp(router->coord, "")) {
 150     unsigned int cursor;
 151     char*str;
 152
 153     if (!COORD_ASR_LEVEL)
 154       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 155     /* Pre-parse the host coordinates */
 156     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 157     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 158     xbt_dynar_foreach(ctn_str,cursor, str) {
 159       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 160       xbt_dynar_push(ctn,&val);
 161     }
 162     xbt_dynar_shrink(ctn, 0);
 163     xbt_dynar_free(&ctn_str);
 164     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 165     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 166   }
 167
 168   if (TRACE_is_enabled() && TRACE_needs_platform())
 169     sg_instr_new_router(router);
 170 }
 171
 172 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 173   simgrid::surf::on_link(link);
 174 }
 175
 176 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 177 {
 178   using simgrid::surf::AsCluster;
 179   using simgrid::surf::AsClusterTorus;
 180   using simgrid::surf::AsClusterFatTree;
 181
 182   char *host_id, *groups, *link_id = NULL;
 183   xbt_dict_t patterns = NULL;
 184   int rankId=0;
 185
 186   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 187   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 188
 189   unsigned int iter;
 190
 191   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 192       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 193     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 194     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 195     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 196     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 197   }
 198
 199   /* Parse the topology attributes.
 200    * Nothing to do in a vanilla cluster, but that's another story for torus and flat_trees */
 201   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 202   AS.id = cluster->id;
 203
 204   switch (cluster->topology) {
 205   case SURF_CLUSTER_TORUS:
 206     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 207     break;
 208   case SURF_CLUSTER_FAT_TREE:
 209     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 210     break;
 211   default:
 212     AS.routing = A_surfxml_AS_routing_Cluster;
 213     break;
 214   }
 215
 216   // What an inventive way of initializing the AS that I have as ancestor :-(
 217   sg_platf_new_AS_begin(&AS);
 218   simgrid::surf::AsImpl *current_routing = routing_get_current();
 219   static_cast<AsCluster*>(current_routing)->parse_specific_arguments(cluster);
 220
 221   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 222       ((AsCluster*)current_routing)->nb_links_per_node_++;
 223       ((AsCluster*)current_routing)->has_loopback_=1;
 224   }
 225
 226   if(cluster->limiter_link!=0){
 227       ((AsCluster*)current_routing)->nb_links_per_node_++;
 228       ((AsCluster*)current_routing)->has_limiter_=1;
 229   }
 230
 231
 232   //Make all hosts
 233   xbt_dynar_t radical_elements = xbt_str_split(cluster->radical, ",");
 234   xbt_dynar_foreach(radical_elements, iter, groups) {
 235
 236     xbt_dynar_t radical_ends = xbt_str_split(groups, "-");
 237     int start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 238     int end;
 239
 240     switch (xbt_dynar_length(radical_ends)) {
 241     case 1:
 242       end = start;
 243       break;
 244     case 2:
 245       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 246       break;
 247     default:
 248       surf_parse_error("Malformed radical");
 249       break;
 250     }
 251     for (int i = start; i <= end; i++) {
 252       host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 253       link_id = bprintf("%s_link_%d", cluster->id, i);
 254
 255       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 256
 257       memset(&host, 0, sizeof(host));
 258       host.id = host_id;
 259       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 260         xbt_dict_cursor_t cursor=NULL;
 261         char *key,*data;
 262         host.properties = xbt_dict_new();
 263
 264         xbt_dict_foreach(cluster->properties,cursor,key,data) {
 265           xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 266         }
 267       }
 268       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 269         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 270         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 271         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 272         host.speed_trace = tmgr_trace_new_from_file(avail_file);
 273         xbt_free(avail_file);
 274       } else {
 275         XBT_DEBUG("\tavailability_file=\"\"");
 276       }
 277
 278       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 279         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 280         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 281         host.state_trace = tmgr_trace_new_from_file(avail_file);
 282         xbt_free(avail_file);
 283       } else {
 284         XBT_DEBUG("\tstate_file=\"\"");
 285       }
 286
 287       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 288       xbt_dynar_push(host.speed_peak,&cluster->speed);
 289       host.pstate = 0;
 290
 291       //host.power_peak = cluster->power;
 292       host.core_amount = cluster->core_amount;
 293       host.coord = "";
 294       sg_platf_new_host(&host);
 295       xbt_dynar_free(&host.speed_peak);
 296       XBT_DEBUG("</host>");
 297
 298       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 299                 cluster->bw, cluster->lat);
 300
 301
 302       s_surf_parsing_link_up_down_t info_lim, info_loop;
 303       // All links are saved in a matrix;
 304       // every row describes a single node; every node
 305       // may have multiple links.
 306       // the first column may store a link from x to x if p_has_loopback is set
 307       // the second column may store a limiter link if p_has_limiter is set
 308       // other columns are to store one or more link for the node
 309
 310       //add a loopback link
 311       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 312         char *tmp_link = bprintf("%s_loopback", link_id);
 313         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 314                 cluster->limiter_link);
 315
 316
 317         memset(&link, 0, sizeof(link));
 318         link.id        = tmp_link;
 319         link.bandwidth = cluster->loopback_bw;
 320         link.latency   = cluster->loopback_lat;
 321         link.policy    = SURF_LINK_FATPIPE;
 322         sg_platf_new_link(&link);
 323         info_loop.link_up   = Link::byName(tmp_link);
 324         info_loop.link_down = info_loop.link_up;
 325         free(tmp_link);
 326         xbt_dynar_set(current_routing->upDownLinks, rankId*(static_cast<AsCluster*>(current_routing))->nb_links_per_node_, &info_loop);
 327       }
 328
 329       //add a limiter link (shared link to account for maximal bandwidth of the node)
 330       if(cluster->limiter_link!=0){
 331         char *tmp_link = bprintf("%s_limiter", link_id);
 332         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 333                 cluster->limiter_link);
 334
 335
 336         memset(&link, 0, sizeof(link));
 337         link.id = tmp_link;
 338         link.bandwidth = cluster->limiter_link;
 339         link.latency = 0;
 340         link.policy = SURF_LINK_SHARED;
 341         sg_platf_new_link(&link);
 342         info_lim.link_up = Link::byName(tmp_link);
 343         info_lim.link_down = info_lim.link_up;
 344         free(tmp_link);
 345         auto as_cluster = static_cast<AsCluster*>(current_routing);
 346         xbt_dynar_set(current_routing->upDownLinks, rankId*(as_cluster)->nb_links_per_node_ + as_cluster->has_loopback_ , &info_lim);
 347
 348       }
 349
 350
 351       //call the cluster function that adds the others links
 352       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 353         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 354       }
 355       else {
 356       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 357           static_cast<AsCluster*>(current_routing)->nb_links_per_node_
 358           + static_cast<AsCluster*>(current_routing)->has_loopback_
 359           + static_cast<AsCluster*>(current_routing)->has_limiter_ );
 360       }
 361       xbt_free(link_id);
 362       xbt_free(host_id);
 363       rankId++;
 364     }
 365
 366     xbt_dynar_free(&radical_ends);
 367   }
 368   xbt_dynar_free(&radical_elements);
 369
 370   // For fat trees, the links must be created once all nodes have been added
 371   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
 372     static_cast<simgrid::surf::AsClusterFatTree*>(current_routing)->create_links();
 373   }
 374   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 375   // and it's very useful to connect clusters together
 376   XBT_DEBUG(" ");
 377   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 378   char *newid = NULL;
 379   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
 380   memset(&router, 0, sizeof(router));
 381   router.id = cluster->router_id;
 382   router.coord = "";
 383   if (!router.id || !strcmp(router.id, ""))
 384     router.id = newid =
 385         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 386                 cluster->suffix);
 387   sg_platf_new_router(&router);
 388   ((AsCluster*)current_routing)->router_ = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 389   free(newid);
 390
 391   //Make the backbone
 392   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 393     char *link_backbone = bprintf("%s_backbone", cluster->id);
 394     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 395               cluster->bb_bw, cluster->bb_lat);
 396
 397     memset(&link, 0, sizeof(link));
 398     link.id        = link_backbone;
 399     link.bandwidth = cluster->bb_bw;
 400     link.latency   = cluster->bb_lat;
 401     link.policy    = cluster->bb_sharing_policy;
 402
 403     sg_platf_new_link(&link);
 404
 405     routing_cluster_add_backbone(Link::byName(link_backbone));
 406
 407     free(link_backbone);
 408   }
 409
 410   XBT_DEBUG("</AS>");
 411   sg_platf_new_AS_end();
 412   XBT_DEBUG(" ");
 413   xbt_dict_free(&patterns); // no op if it were never set
 414
 415   simgrid::surf::on_cluster(cluster);
 416 }
 417 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 418   simgrid::surf::AsCluster *cluster = dynamic_cast<simgrid::surf::AsCluster*>(current_routing);
 419
 420   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 421   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 422
 423   cluster->backbone_ = bb;
 424   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 425 }
 426
 427 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 428 {
 429   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 430                "Refusing to add a second storage named \"%s\"", storage->id);
 431
 432   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 433   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 434
 435   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 436       storage->id,
 437       storage->type_id,
 438       storage->content);
 439
 440   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 441
 442   // if storage content is not specified use the content of storage_type if any
 443   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 444     storage->content = ((storage_type_t) stype)->content;
 445     storage->content_type = ((storage_type_t) stype)->content_type;
 446     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 447         storage->id,((storage_type_t) stype)->content_type,
 448         ((storage_type_t) stype)->type_id);
 449   }
 450
 451   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 452       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 453       "\n\t\tproperties '%p''\n",
 454       storage->id,
 455       ((storage_type_t) stype)->model,
 456       ((storage_type_t) stype)->type_id,
 457       storage->content,
 458       storage->content_type,
 459     storage->properties);
 460
 461   surf_storage_model->createStorage(storage->id,
 462                                      ((storage_type_t) stype)->type_id,
 463                                      storage->content,
 464                                      storage->content_type,
 465                    storage->properties,
 466                                      storage->attach);
 467 }
 468 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 469
 470   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 471                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 472
 473   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 474   stype->model = xbt_strdup(storage_type->model);
 475   stype->properties = storage_type->properties;
 476   stype->content = xbt_strdup(storage_type->content);
 477   stype->content_type = xbt_strdup(storage_type->content_type);
 478   stype->type_id = xbt_strdup(storage_type->id);
 479   stype->size = storage_type->size;
 480   stype->model_properties = storage_type->model_properties;
 481
 482   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 483       "content '%s', and content_type '%s'",
 484       stype->type_id,
 485       stype->model,
 486       storage_type->content,
 487       storage_type->content_type);
 488
 489   xbt_lib_set(storage_type_lib,
 490       stype->type_id,
 491       ROUTING_STORAGE_TYPE_LEVEL,
 492       (void *) stype);
 493 }
 494 void sg_platf_new_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 495 {
 496   THROW_UNIMPLEMENTED;
 497 }
 498
 499 static void mount_free(void *p)
 500 {
 501   mount_t mnt = (mount_t) p;
 502   xbt_free(mnt->name);
 503 }
 504
 505 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 506   // Verification of an existing storage
 507   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 508       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 509
 510   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 511
 512   s_mount_t mnt;
 513   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 514   mnt.name = xbt_strdup(mount->name);
 515
 516   if(!mount_list){
 517     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 518     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 519   }
 520   xbt_dynar_push(mount_list, &mnt);
 521 }
 522
 523 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 524 {
 525   routing_get_current()->addRoute(route);
 526 }
 527
 528 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 529 {
 530   routing_get_current()->addBypassRoute(bypassRoute);
 531 }
 532
 533 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 534 {
 535   xbt_assert(simix_global,"Cannot create process without SIMIX.");
 536
 537   sg_host_t host = sg_host_by_name(process->host);
 538   if (!host) {
 539     // The requested host does not exist. Do a nice message to the user
 540     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 541     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 542     free(tmp);
 543     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 544     simgrid::s4u::Host* host;
 545     unsigned int cursor;
 546     xbt_dynar_foreach(all_hosts,cursor, host) {
 547       xbt_strbuff_append(msg,host->name().c_str());
 548       xbt_strbuff_append(msg,"', '");
 549       if (msg->used > 1024) {
 550         msg->data[msg->used-3]='\0';
 551         msg->used -= 3;
 552
 553         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 554       }
 555     }
 556     msg->data[msg->used-3]='\0';
 557     xbt_die("%s", msg->data);
 558   }
 559   xbt_main_func_t parse_code = SIMIX_get_registered_function(process->function);
 560   xbt_assert(parse_code, "Function '%s' unknown", process->function);
 561
 562   double start_time = process->start_time;
 563   double kill_time  = process->kill_time;
 564   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 565
 566   smx_process_arg_t arg = NULL;
 567   smx_process_t process_created = NULL;
 568
 569   arg = xbt_new0(s_smx_process_arg_t, 1);
 570   arg->code = parse_code;
 571   arg->data = NULL;
 572   arg->hostname = sg_host_get_name(host);
 573   arg->argc = process->argc;
 574   arg->argv = xbt_new(char *,process->argc);
 575   int i;
 576   for (i=0; i<process->argc; i++)
 577     arg->argv[i] = xbt_strdup(process->argv[i]);
 578   arg->name = xbt_strdup(arg->argv[0]);
 579   arg->kill_time = kill_time;
 580   arg->properties = current_property_set;
 581   if (!sg_host_simix(host)->boot_processes) {
 582     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 583   }
 584   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 585
 586   if (start_time > SIMIX_get_clock()) {
 587     arg = xbt_new0(s_smx_process_arg_t, 1);
 588     arg->name = (char*)(process->argv)[0];
 589     arg->code = parse_code;
 590     arg->data = NULL;
 591     arg->hostname = sg_host_get_name(host);
 592     arg->argc = process->argc;
 593     arg->argv = (char**)(process->argv);
 594     arg->kill_time = kill_time;
 595     arg->properties = current_property_set;
 596
 597     XBT_DEBUG("Process %s(%s) will be started at time %f", arg->name,
 598            arg->hostname, start_time);
 599     SIMIX_timer_set(start_time, [](void* arg) {
 600       SIMIX_process_create_from_wrapper((smx_process_arg_t) arg);
 601     }, arg);
 602   } else {                      // start_time <= SIMIX_get_clock()
 603     XBT_DEBUG("Starting Process %s(%s) right now", arg->name, sg_host_get_name(host));
 604
 605     if (simix_global->create_process_function)
 606       process_created = simix_global->create_process_function(
 607           arg->name,
 608                                             parse_code,
 609                                             NULL,
 610                                             sg_host_get_name(host),
 611                                             kill_time,
 612                                             process->argc,
 613                                             (char**)(process->argv),
 614                                             current_property_set,
 615                                             auto_restart, NULL);
 616     else
 617       process_created = simcall_process_create(arg->name, parse_code, NULL, sg_host_get_name(host), kill_time, process->argc,
 618           (char**)process->argv, current_property_set,auto_restart);
 619
 620     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 621     if (!process_created) {
 622       return;
 623     }
 624   }
 625   current_property_set = NULL;
 626 }
 627
 628 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 629 {
 630   using simgrid::surf::NetCard;
 631   using simgrid::surf::AsCluster;
 632
 633   char *host_id = NULL;
 634   char *link_id = NULL;
 635   char *router_id = NULL;
 636
 637   XBT_DEBUG(" ");
 638   host_id = bprintf("peer_%s", peer->id);
 639   link_id = bprintf("link_%s", peer->id);
 640   router_id = bprintf("router_%s", peer->id);
 641
 642   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 643   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 644   AS.id                    = peer->id;
 645   AS.routing               = A_surfxml_AS_routing_Cluster;
 646   sg_platf_new_AS_begin(&AS);
 647
 648   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 649   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 650   memset(&host, 0, sizeof(host));
 651   host.id = host_id;
 652
 653   host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 654   xbt_dynar_push(host.speed_peak,&peer->speed);
 655   host.pstate = 0;
 656   //host.power_peak = peer->power;
 657   host.speed_trace = peer->availability_trace;
 658   host.state_trace = peer->state_trace;
 659   host.core_amount = 1;
 660   sg_platf_new_host(&host);
 661   xbt_dynar_free(&host.speed_peak);
 662
 663   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 664   memset(&link, 0, sizeof(link));
 665   link.policy  = SURF_LINK_SHARED;
 666   link.latency = peer->lat;
 667
 668   char* link_up = bprintf("%s_UP",link_id);
 669   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
 670             peer->bw_out, peer->lat);
 671   link.id = link_up;
 672   link.bandwidth = peer->bw_out;
 673   sg_platf_new_link(&link);
 674
 675   char* link_down = bprintf("%s_DOWN",link_id);
 676   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
 677             peer->bw_in, peer->lat);
 678   link.id = link_down;
 679   link.bandwidth = peer->bw_in;
 680   sg_platf_new_link(&link);
 681
 682   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
 683   s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
 684   memset(&host_link, 0, sizeof(host_link));
 685   host_link.id        = host_id;
 686   host_link.link_up   = link_up;
 687   host_link.link_down = link_down;
 688   sg_platf_new_hostlink(&host_link);
 689
 690   XBT_DEBUG("<router id=\"%s\"/>", router_id);
 691   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
 692   memset(&router, 0, sizeof(router));
 693   router.id = router_id;
 694   router.coord = peer->coord;
 695   sg_platf_new_router(&router);
 696   static_cast<AsCluster*>(current_routing)->router_ = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
 697
 698   XBT_DEBUG("</AS>");
 699   sg_platf_new_AS_end();
 700   XBT_DEBUG(" ");
 701
 702   //xbt_dynar_free(&tab_elements_num);
 703   free(router_id);
 704   free(host_id);
 705   free(link_id);
 706   free(link_up);
 707   free(link_down);
 708 }
 709
 710 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 711
 712 void sg_platf_end() {
 713   simgrid::surf::on_postparse();
 714 }
 715
 716 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 717 static void surf_config_models_setup()
 718 {
 719   const char *host_model_name;
 720   const char *vm_model_name;
 721   int host_id = -1;
 722   int vm_id = -1;
 723   char *network_model_name = NULL;
 724   char *cpu_model_name = NULL;
 725   int storage_id = -1;
 726   char *storage_model_name = NULL;
 727
 728   host_model_name = xbt_cfg_get_string(_sg_cfg_set, "host/model");
 729   vm_model_name = xbt_cfg_get_string(_sg_cfg_set, "vm/model");
 730   network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
 731   cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
 732   storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
 733
 734   /* Check whether we use a net/cpu model differing from the default ones, in which case
 735    * we should switch to the "compound" host model to correctly dispatch stuff to
 736    * the right net/cpu models.
 737    */
 738
 739   if ((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
 740        !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
 741       xbt_cfg_is_default_value(_sg_cfg_set, "host/model")) {
 742     host_model_name = "compound";
 743     xbt_cfg_set_string(_sg_cfg_set, "host/model", host_model_name);
 744   }
 745
 746   XBT_DEBUG("host model: %s", host_model_name);
 747   host_id = find_model_description(surf_host_model_description, host_model_name);
 748   if (!strcmp(host_model_name, "compound")) {
 749     int network_id = -1;
 750     int cpu_id = -1;
 751
 752     xbt_assert(cpu_model_name,
 753                 "Set a cpu model to use with the 'compound' host model");
 754
 755     xbt_assert(network_model_name,
 756                 "Set a network model to use with the 'compound' host model");
 757
 758     if(surf_cpu_model_init_preparse){
 759       surf_cpu_model_init_preparse();
 760     } else {
 761       cpu_id =
 762           find_model_description(surf_cpu_model_description, cpu_model_name);
 763       surf_cpu_model_description[cpu_id].model_init_preparse();
 764     }
 765
 766     network_id =
 767         find_model_description(surf_network_model_description,
 768                                network_model_name);
 769     surf_network_model_description[network_id].model_init_preparse();
 770   }
 771
 772   XBT_DEBUG("Call host_model_init");
 773   surf_host_model_description[host_id].model_init_preparse();
 774
 775   XBT_DEBUG("Call vm_model_init");
 776   vm_id = find_model_description(surf_vm_model_description, vm_model_name);
 777   surf_vm_model_description[vm_id].model_init_preparse();
 778
 779   XBT_DEBUG("Call storage_model_init");
 780   storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 781   surf_storage_model_description[storage_id].model_init_preparse();
 782
 783 }
 784
 785 /**
 786  * \brief Make a new routing component to the platform
 787  *
 788  * Add a new autonomous system to the platform. Any elements (such as host,
 789  * router or sub-AS) added after this call and before the corresponding call
 790  * to sg_platf_new_AS_close() will be added to this AS.
 791  *
 792  * Once this function was called, the configuration concerning the used
 793  * models cannot be changed anymore.
 794  *
 795  * @param AS_id name of this autonomous system. Must be unique in the platform
 796  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 797  */
 798 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 799 {
 800   XBT_DEBUG("routing_AS_begin");
 801
 802   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 803       "Refusing to create a second AS called \"%s\".", AS->id);
 804
 805   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 806                             * any further config now that we created some real content */
 807
 808
 809   /* search the routing model */
 810   simgrid::surf::AsImpl *new_as = NULL;
 811   switch(AS->routing){
 812     case A_surfxml_AS_routing_Cluster:        new_as = new simgrid::surf::AsCluster(AS->id);        break;
 813     case A_surfxml_AS_routing_ClusterTorus:   new_as = new simgrid::surf::AsClusterTorus(AS->id);   break;
 814     case A_surfxml_AS_routing_ClusterFatTree: new_as = new simgrid::surf::AsClusterFatTree(AS->id); break;
 815     case A_surfxml_AS_routing_Dijkstra:       new_as = new simgrid::surf::AsDijkstra(AS->id, 0);    break;
 816     case A_surfxml_AS_routing_DijkstraCache:  new_as = new simgrid::surf::AsDijkstra(AS->id, 1);    break;
 817     case A_surfxml_AS_routing_Floyd:          new_as = new simgrid::surf::AsFloyd(AS->id);          break;
 818     case A_surfxml_AS_routing_Full:           new_as = new simgrid::surf::AsFull(AS->id);           break;
 819     case A_surfxml_AS_routing_None:           new_as = new simgrid::surf::AsNone(AS->id);           break;
 820     case A_surfxml_AS_routing_Vivaldi:        new_as = new simgrid::surf::AsVivaldi(AS->id);        break;
 821     default:                                  xbt_die("Not a valid model!");                        break;
 822   }
 823
 824   /* make a new routing component */
 825   simgrid::surf::NetCard *netcard = new simgrid::surf::NetCardImpl(new_as->name(), SURF_NETWORK_ELEMENT_AS, current_routing);
 826
 827   if (current_routing == NULL && routing_platf->root_ == NULL) {
 828     /* it is the first one */
 829     routing_platf->root_ = new_as;
 830     netcard->setId(-1);
 831   } else if (current_routing != NULL && routing_platf->root_ != NULL) {
 832
 833     xbt_assert(!xbt_dict_get_or_null(current_routing->children(), AS->id),
 834                "The AS \"%s\" already exists", AS->id);
 835     /* it is a part of the tree */
 836     new_as->father_ = current_routing;
 837     /* set the father behavior */
 838     if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
 839       current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::recursive;
 840     /* add to the sons dictionary */
 841     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, NULL);
 842     /* add to the father element list */
 843     netcard->setId(current_routing->addComponent(netcard));
 844   } else {
 845     THROWF(arg_error, 0, "All defined components must belong to a AS");
 846   }
 847
 848   xbt_lib_set(as_router_lib, netcard->name(), ROUTING_ASR_LEVEL, (void *) netcard);
 849   XBT_DEBUG("Having set name '%s' id '%d'", new_as->name(), netcard->id());
 850
 851   /* set the new current component of the tree */
 852   current_routing = new_as;
 853   current_routing->netcard_ = netcard;
 854
 855   simgrid::surf::netcardCreatedCallbacks(netcard);
 856   simgrid::surf::asCreatedCallbacks(new_as);
 857 }
 858
 859 void sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 860 {
 861   if (!surf_parse_models_setup_already_called) {
 862     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 863      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 864      *
 865      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 866      * (FIXME: check it out by creating a file beginning with one of these tags)
 867      * but cluster and peer create ASes internally, so putting the code in there is ok.
 868      *
 869      * TODO, There used to be a guard protecting here against
 870      * xbt_dynar_length(sg_platf_AS_begin_cb_list) because we don't want to
 871      * initialize the models if we are parsing the file to get the deployment.
 872      * That could happen if the same file would be used for platf and deploy:
 873      * it'd contain AS tags even during the deploy parsing. Removing that guard
 874      * would result of the models to get re-inited when parsing for deploy.
 875      * Currently using the same file for platform and deployment is broken
 876      * however. This guard will have to ba adapted in order to make this feature
 877      * work again.
 878      */
 879     surf_parse_models_setup_already_called = 1;
 880     surf_config_models_setup();
 881   }
 882
 883   routing_AS_begin(AS);
 884   if (TRACE_is_enabled())
 885     sg_instr_AS_begin(AS);
 886 }
 887
 888 void sg_platf_new_AS_end()
 889 {
 890   routing_AS_end();
 891   if (TRACE_is_enabled())
 892     sg_instr_AS_end();
 893 }
 894 /**
 895  * \brief Specify that the current description of AS is finished
 896  *
 897  * Once you've declared all the content of your AS, you have to close
 898  * it with this call. Your AS is not usable until you call this function.
 899  */
 900 void routing_AS_end()
 901 {
 902   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 903   current_routing->Seal();
 904   current_routing = static_cast<simgrid::surf::AsImpl*>(current_routing->father());
 905 }
 906
 907 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 908 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t netcard_arg)
 909 {
 910   simgrid::surf::NetCard *netcard = sg_host_by_name(netcard_arg->id)->pimpl_netcard;
 911   xbt_assert(netcard, "Host '%s' not found!", netcard_arg->id);
 912   xbt_assert(dynamic_cast<simgrid::surf::AsCluster*>(current_routing) ||
 913              dynamic_cast<simgrid::surf::AsVivaldi*>(current_routing),
 914       "Only hosts from Cluster and Vivaldi ASes can get a host_link.");
 915
 916   s_surf_parsing_link_up_down_t link_up_down;
 917   link_up_down.link_up = Link::byName(netcard_arg->link_up);
 918   link_up_down.link_down = Link::byName(netcard_arg->link_down);
 919
 920   xbt_assert(link_up_down.link_up, "Link '%s' not found!",netcard_arg->link_up);
 921   xbt_assert(link_up_down.link_down, "Link '%s' not found!",netcard_arg->link_down);
 922
 923   // If dynar is is greater than netcard id and if the host_link is already defined
 924   if((int)xbt_dynar_length(current_routing->upDownLinks) > netcard->id() &&
 925       xbt_dynar_get_as(current_routing->upDownLinks, netcard->id(), void*))
 926   surf_parse_error("Host_link for '%s' is already defined!",netcard_arg->id);
 927
 928   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name(), netcard->id());
 929   xbt_dynar_set_as(current_routing->upDownLinks, netcard->id(), s_surf_parsing_link_up_down_t, link_up_down);
 930 }