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 "simgrid/platf_interface.h"
  14 #include "surf/surf.h"
  15
  16 #include "src/simix/smx_private.h"
  17 #include "src/surf/platform.hpp"
  18
  19 #include "src/surf/platform.hpp"
  20 #include "src/surf/cpu_interface.hpp"
  21 #include "src/surf/host_interface.hpp"
  22 #include "src/surf/network_interface.hpp"
  23 #include "surf/surf_routing.h" // FIXME: brain dead public header
  24 #include "src/surf/surf_routing_cluster.hpp"
  25 #include "src/surf/surf_routing_cluster_torus.hpp"
  26 #include "src/surf/surf_routing_cluster_fat_tree.hpp"
  27
  28 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  29
  30 namespace simgrid {
  31 namespace surf {
  32
  33 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
  34 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  35 simgrid::xbt::signal<void(void)> on_postparse;
  36
  37 }
  38 }
  39
  40 static int surf_parse_models_setup_already_called = 0;
  41
  42 /* one RngStream for the platform, to respect some statistic rules */
  43 static RngStream sg_platf_rng_stream = NULL;
  44
  45 /** Module management function: creates all internal data structures */
  46 void sg_platf_init(void) {
  47 }
  48
  49 /** Module management function: frees all internal data structures */
  50 void sg_platf_exit(void) {
  51   simgrid::surf::on_link.disconnect_all_slots();
  52   simgrid::surf::on_cluster.disconnect_all_slots();
  53   simgrid::surf::on_postparse.disconnect_all_slots();
  54
  55   /* make sure that we will reinit the models while loading the platf once reinited */
  56   surf_parse_models_setup_already_called = 0;
  57 }
  58
  59 /** @brief Add an "host" to the current AS */
  60 void sg_platf_new_host(sg_platf_host_cbarg_t host)
  61 {
  62   xbt_assert(! sg_host_by_name(host->id),
  63       "Refusing to create a second host named '%s'.", host->id);
  64
  65   simgrid::surf::As* current_routing = routing_get_current();
  66   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
  67     current_routing->p_hierarchy = SURF_ROUTING_BASE;
  68
  69   simgrid::surf::NetCard *netcard =
  70       new simgrid::surf::NetCardImpl(xbt_strdup(host->id), -1, SURF_NETWORK_ELEMENT_HOST, current_routing);
  71
  72   netcard->setId(current_routing->parsePU(netcard));
  73   sg_host_t h = simgrid::s4u::Host::by_name_or_create(host->id);
  74   h->pimpl_netcard = netcard;
  75   simgrid::surf::netcardCreatedCallbacks(netcard);
  76
  77   if(mount_list){
  78     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
  79     mount_list = NULL;
  80   }
  81
  82   if (host->coord && strcmp(host->coord, "")) {
  83     unsigned int cursor;
  84     char*str;
  85
  86     if (!COORD_HOST_LEVEL)
  87       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
  88     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
  89     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
  90     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
  91     xbt_dynar_foreach(ctn_str,cursor, str) {
  92       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
  93       xbt_dynar_push(ctn,&val);
  94     }
  95     xbt_dynar_shrink(ctn, 0);
  96     xbt_dynar_free(&ctn_str);
  97     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
  98     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
  99   }
 100
 101
 102   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h,
 103       host->speed_peak,
 104       host->pstate,
 105       host->speed_scale, host->speed_trace,
 106       host->core_amount,
 107       host->initiallyOn, host->state_trace);
 108   surf_host_model->createHost(host->id, netcard, cpu, host->properties)->attach(h);
 109   simgrid::s4u::Host::onCreation(*h);
 110
 111   if (TRACE_is_enabled() && TRACE_needs_platform())
 112     sg_instr_new_host(host);
 113 }
 114
 115 /**
 116  * \brief Add a "router" to the network element list
 117  */
 118 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 119 {
 120   simgrid::surf::As* current_routing = routing_get_current();
 121
 122   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 123     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 124   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 125              "Reading a router, processing unit \"%s\" already exists",
 126              router->id);
 127
 128   simgrid::surf::NetCard *info = new simgrid::surf::NetCardImpl(
 129     xbt_strdup(router->id), -1, SURF_NETWORK_ELEMENT_ROUTER, current_routing);
 130   info->setId(current_routing->parsePU(info));
 131   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 132   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 133   simgrid::surf::netcardCreatedCallbacks(info);
 134
 135   if (router->coord && strcmp(router->coord, "")) {
 136     unsigned int cursor;
 137     char*str;
 138
 139     if (!COORD_ASR_LEVEL)
 140       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 141     /* Pre-parse the host coordinates */
 142     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 143     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 144     xbt_dynar_foreach(ctn_str,cursor, str) {
 145       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 146       xbt_dynar_push(ctn,&val);
 147     }
 148     xbt_dynar_shrink(ctn, 0);
 149     xbt_dynar_free(&ctn_str);
 150     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 151     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 152   }
 153
 154   if (TRACE_is_enabled() && TRACE_needs_platform())
 155     sg_instr_new_router(router);
 156 }
 157
 158 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 159   simgrid::surf::on_link(link);
 160 }
 161
 162 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 163 {
 164   using simgrid::surf::AsCluster;
 165   using simgrid::surf::AsClusterTorus;
 166   using simgrid::surf::AsClusterFatTree;
 167
 168   char *host_id, *groups, *link_id = NULL;
 169   xbt_dict_t patterns = NULL;
 170   int rankId=0;
 171
 172   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 173   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 174
 175   unsigned int iter;
 176   int start, end, i;
 177   xbt_dynar_t radical_elements;
 178   xbt_dynar_t radical_ends;
 179
 180   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 181       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 182     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 183     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 184     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 185     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 186   }
 187
 188   /* Parse the topology attributes.
 189    * Nothing to do in a vanilla cluster, but that's another story for torus and flat_trees */
 190   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 191   AS.id = cluster->id;
 192
 193   switch (cluster->topology) {
 194   case SURF_CLUSTER_TORUS:
 195     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 196     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 197     break;
 198   case SURF_CLUSTER_FAT_TREE:
 199     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 200     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 201     break;
 202   default:
 203     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 204     AS.routing = A_surfxml_AS_routing_Cluster;
 205     break;
 206   }
 207
 208   // What an inventive way of initializing the AS that I have as ancestor :-(
 209   sg_platf_new_AS_begin(&AS);
 210   simgrid::surf::As *current_routing = routing_get_current();
 211   static_cast<AsCluster*>(current_routing)->parse_specific_arguments(cluster);
 212
 213   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 214       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 215       ((AsCluster*)current_routing)->p_has_loopback=1;
 216   }
 217
 218   if(cluster->limiter_link!=0){
 219       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 220       ((AsCluster*)current_routing)->p_has_limiter=1;
 221   }
 222
 223
 224   current_routing->p_linkUpDownList
 225             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 226
 227   //Make all hosts
 228   radical_elements = xbt_str_split(cluster->radical, ",");
 229   xbt_dynar_foreach(radical_elements, iter, groups) {
 230
 231     radical_ends = xbt_str_split(groups, "-");
 232     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 233
 234     switch (xbt_dynar_length(radical_ends)) {
 235     case 1:
 236       end = start;
 237       break;
 238     case 2:
 239       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 240       break;
 241     default:
 242       surf_parse_error("Malformed radical");
 243       break;
 244     }
 245     for (i = start; i <= end; i++) {
 246       host_id =
 247           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 248       link_id = bprintf("%s_link_%d", cluster->id, i);
 249
 250       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 251
 252       memset(&host, 0, sizeof(host));
 253       host.id = host_id;
 254       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 255         xbt_dict_cursor_t cursor=NULL;
 256         char *key,*data;
 257         host.properties = xbt_dict_new();
 258
 259         xbt_dict_foreach(cluster->properties,cursor,key,data) {
 260           xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 261         }
 262       }
 263       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 264         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 265         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 266         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 267         host.speed_trace = tmgr_trace_new_from_file(avail_file);
 268         xbt_free(avail_file);
 269       } else {
 270         XBT_DEBUG("\tavailability_file=\"\"");
 271       }
 272
 273       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 274         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 275         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 276         host.state_trace = tmgr_trace_new_from_file(avail_file);
 277         xbt_free(avail_file);
 278       } else {
 279         XBT_DEBUG("\tstate_file=\"\"");
 280       }
 281
 282       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 283       xbt_dynar_push(host.speed_peak,&cluster->speed);
 284       host.pstate = 0;
 285
 286       //host.power_peak = cluster->power;
 287       host.speed_scale = 1.0;
 288       host.core_amount = cluster->core_amount;
 289       host.initiallyOn = 1;
 290       host.coord = "";
 291       sg_platf_new_host(&host);
 292       xbt_dynar_free(&host.speed_peak);
 293       XBT_DEBUG("</host>");
 294
 295       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 296                 cluster->bw, cluster->lat);
 297
 298
 299       s_surf_parsing_link_up_down_t info_lim, info_loop;
 300       // All links are saved in a matrix;
 301       // every row describes a single node; every node
 302       // may have multiple links.
 303       // the first column may store a link from x to x if p_has_loopback is set
 304       // the second column may store a limiter link if p_has_limiter is set
 305       // other columns are to store one or more link for the node
 306
 307       //add a loopback link
 308       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 309         char *tmp_link = bprintf("%s_loopback", link_id);
 310         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 311                 cluster->limiter_link);
 312
 313
 314         memset(&link, 0, sizeof(link));
 315         link.id        = tmp_link;
 316         link.bandwidth = cluster->loopback_bw;
 317         link.latency   = cluster->loopback_lat;
 318         link.initiallyOn = 1;
 319         link.policy    = SURF_LINK_FATPIPE;
 320         sg_platf_new_link(&link);
 321         info_loop.link_up   = Link::byName(tmp_link);
 322         info_loop.link_down = info_loop.link_up;
 323         free(tmp_link);
 324         xbt_dynar_set(current_routing->p_linkUpDownList,
 325           rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node, &info_loop);
 326       }
 327
 328       //add a limiter link (shared link to account for maximal bandwidth of the node)
 329       if(cluster->limiter_link!=0){
 330         char *tmp_link = bprintf("%s_limiter", link_id);
 331         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 332                 cluster->limiter_link);
 333
 334
 335         memset(&link, 0, sizeof(link));
 336         link.id = tmp_link;
 337         link.bandwidth = cluster->limiter_link;
 338         link.latency = 0;
 339         link.initiallyOn = 1;
 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->p_linkUpDownList,
 347             rankId*(as_cluster)->p_nb_links_per_node + as_cluster->p_has_loopback ,
 348             &info_lim);
 349
 350       }
 351
 352
 353       //call the cluster function that adds the others links
 354       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 355         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 356       }
 357       else {
 358       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 359           static_cast<AsCluster*>(current_routing)->p_nb_links_per_node
 360           + static_cast<AsCluster*>(current_routing)->p_has_loopback
 361           + static_cast<AsCluster*>(current_routing)->p_has_limiter );
 362       }
 363       xbt_free(link_id);
 364       xbt_free(host_id);
 365       rankId++;
 366     }
 367
 368     xbt_dynar_free(&radical_ends);
 369   }
 370   xbt_dynar_free(&radical_elements);
 371
 372   // For fat trees, the links must be created once all nodes have been added
 373   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
 374     static_cast<simgrid::surf::AsClusterFatTree*>(current_routing)->create_links();
 375   }
 376   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 377   // and it's very useful to connect clusters together
 378   XBT_DEBUG(" ");
 379   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 380   char *newid = NULL;
 381   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
 382   memset(&router, 0, sizeof(router));
 383   router.id = cluster->router_id;
 384   router.coord = "";
 385   if (!router.id || !strcmp(router.id, ""))
 386     router.id = newid =
 387         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 388                 cluster->suffix);
 389   sg_platf_new_router(&router);
 390   ((AsCluster*)current_routing)->p_router = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 391   free(newid);
 392
 393   //Make the backbone
 394   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 395     char *link_backbone = bprintf("%s_backbone", cluster->id);
 396     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 397               cluster->bb_bw, cluster->bb_lat);
 398
 399     memset(&link, 0, sizeof(link));
 400     link.id        = link_backbone;
 401     link.bandwidth = cluster->bb_bw;
 402     link.latency   = cluster->bb_lat;
 403     link.initiallyOn = 1;
 404     link.policy    = cluster->bb_sharing_policy;
 405
 406     sg_platf_new_link(&link);
 407
 408     routing_cluster_add_backbone(Link::byName(link_backbone));
 409
 410     free(link_backbone);
 411   }
 412
 413   XBT_DEBUG("</AS>");
 414   sg_platf_new_AS_end();
 415   XBT_DEBUG(" ");
 416   xbt_dict_free(&patterns); // no op if it were never set
 417
 418   simgrid::surf::on_cluster(cluster);
 419 }
 420
 421 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 422 {
 423   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 424                "Refusing to add a second storage named \"%s\"", storage->id);
 425
 426   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 427   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 428
 429   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 430       storage->id,
 431       storage->type_id,
 432       storage->content);
 433
 434   xbt_lib_set(storage_lib,
 435       storage->id,
 436       ROUTING_STORAGE_LEVEL,
 437       (void *) xbt_strdup(storage->type_id));
 438
 439   // if storage content is not specified use the content of storage_type if any
 440   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 441     storage->content = ((storage_type_t) stype)->content;
 442     storage->content_type = ((storage_type_t) stype)->content_type;
 443     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 444         storage->id,((storage_type_t) stype)->content_type,
 445         ((storage_type_t) stype)->type_id);
 446   }
 447
 448   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 449       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 450       "\n\t\tproperties '%p''\n",
 451       storage->id,
 452       ((storage_type_t) stype)->model,
 453       ((storage_type_t) stype)->type_id,
 454       storage->content,
 455       storage->content_type,
 456     storage->properties);
 457
 458   surf_storage_model->createStorage(storage->id,
 459                                      ((storage_type_t) stype)->type_id,
 460                                      storage->content,
 461                                      storage->content_type,
 462                    storage->properties,
 463                                      storage->attach);
 464 }
 465 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 466
 467   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 468                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 469
 470   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 471   stype->model = xbt_strdup(storage_type->model);
 472   stype->properties = storage_type->properties;
 473   stype->content = xbt_strdup(storage_type->content);
 474   stype->content_type = xbt_strdup(storage_type->content_type);
 475   stype->type_id = xbt_strdup(storage_type->id);
 476   stype->size = storage_type->size;
 477   stype->model_properties = storage_type->model_properties;
 478
 479   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 480       "content '%s', and content_type '%s'",
 481       stype->type_id,
 482       stype->model,
 483       storage_type->content,
 484       storage_type->content_type);
 485
 486   xbt_lib_set(storage_type_lib,
 487       stype->type_id,
 488       ROUTING_STORAGE_TYPE_LEVEL,
 489       (void *) stype);
 490 }
 491 void sg_platf_new_mstorage(sg_platf_mstorage_cbarg_t mstorage)
 492 {
 493   THROW_UNIMPLEMENTED;
 494 //  mount_t mnt = xbt_new0(s_mount_t, 1);
 495 //  mnt->id = xbt_strdup(mstorage->type_id);
 496 //  mnt->name = xbt_strdup(mstorage->name);
 497 //
 498 //  if(!mount_list){
 499 //    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
 500 //    mount_list = xbt_dynar_new(sizeof(char *), NULL);
 501 //  }
 502 //  xbt_dynar_push(mount_list,(void *) mnt);
 503 //  free(mnt->id);
 504 //  free(mnt->name);
 505 //  xbt_free(mnt);
 506 //  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
 507 }
 508
 509 static void mount_free(void *p)
 510 {
 511   mount_t mnt = (mount_t) p;
 512   xbt_free(mnt->name);
 513 }
 514
 515 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 516   // Verification of an existing storage
 517 #ifndef NDEBUG
 518   void* storage = xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL);
 519 #endif
 520   xbt_assert(storage,"Disk id \"%s\" does not exists", mount->storageId);
 521
 522   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 523
 524   s_mount_t mnt;
 525   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 526   mnt.name = xbt_strdup(mount->name);
 527
 528   if(!mount_list){
 529     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 530     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 531   }
 532   xbt_dynar_push(mount_list, &mnt);
 533 }
 534
 535 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 536 {
 537   routing_get_current()->parseRoute(route);
 538 }
 539
 540 void sg_platf_new_ASroute(sg_platf_route_cbarg_t ASroute)
 541 {
 542   routing_get_current()->parseASroute(ASroute);
 543 }
 544
 545 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 546 {
 547   routing_get_current()->parseBypassroute(bypassRoute);
 548 }
 549
 550 void sg_platf_new_bypassASroute(sg_platf_route_cbarg_t bypassASroute)
 551 {
 552   routing_get_current()->parseBypassroute(bypassASroute);
 553 }
 554
 555 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 556 {
 557   if (!simix_global)
 558     xbt_die("Cannot create process without SIMIX.");
 559
 560   sg_host_t host = sg_host_by_name(process->host);
 561   if (!host) {
 562     // The requested host does not exist. Do a nice message to the user
 563     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
 564     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
 565     free(tmp);
 566     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
 567     simgrid::s4u::Host* host;
 568     unsigned int cursor;
 569     xbt_dynar_foreach(all_hosts,cursor, host) {
 570       xbt_strbuff_append(msg,host->name().c_str());
 571       xbt_strbuff_append(msg,"', '");
 572       if (msg->used > 1024) {
 573         msg->data[msg->used-3]='\0';
 574         msg->used -= 3;
 575
 576         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
 577       }
 578     }
 579     msg->data[msg->used-3]='\0';
 580     xbt_die("%s", msg->data);
 581   }
 582   xbt_main_func_t parse_code = SIMIX_get_registered_function(process->function);
 583   xbt_assert(parse_code, "Function '%s' unknown", process->function);
 584
 585   double start_time = process->start_time;
 586   double kill_time  = process->kill_time;
 587   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
 588
 589   smx_process_arg_t arg = NULL;
 590   smx_process_t process_created = NULL;
 591
 592   arg = xbt_new0(s_smx_process_arg_t, 1);
 593   arg->code = parse_code;
 594   arg->data = NULL;
 595   arg->hostname = sg_host_get_name(host);
 596   arg->argc = process->argc;
 597   arg->argv = xbt_new(char *,process->argc);
 598   int i;
 599   for (i=0; i<process->argc; i++)
 600     arg->argv[i] = xbt_strdup(process->argv[i]);
 601   arg->name = xbt_strdup(arg->argv[0]);
 602   arg->kill_time = kill_time;
 603   arg->properties = current_property_set;
 604   if (!sg_host_simix(host)->boot_processes) {
 605     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 606   }
 607   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 608
 609   if (start_time > SIMIX_get_clock()) {
 610     arg = xbt_new0(s_smx_process_arg_t, 1);
 611     arg->name = (char*)(process->argv)[0];
 612     arg->code = parse_code;
 613     arg->data = NULL;
 614     arg->hostname = sg_host_get_name(host);
 615     arg->argc = process->argc;
 616     arg->argv = (char**)(process->argv);
 617     arg->kill_time = kill_time;
 618     arg->properties = current_property_set;
 619
 620     XBT_DEBUG("Process %s(%s) will be started at time %f", arg->name,
 621            arg->hostname, start_time);
 622     SIMIX_timer_set(start_time, [](void* arg) {
 623       SIMIX_process_create_from_wrapper((smx_process_arg_t) arg);
 624     }, arg);
 625   } else {                      // start_time <= SIMIX_get_clock()
 626     XBT_DEBUG("Starting Process %s(%s) right now", arg->name, sg_host_get_name(host));
 627
 628     if (simix_global->create_process_function)
 629       process_created = simix_global->create_process_function(
 630           arg->name,
 631                                             parse_code,
 632                                             NULL,
 633                                             sg_host_get_name(host),
 634                                             kill_time,
 635                                             process->argc,
 636                                             (char**)(process->argv),
 637                                             current_property_set,
 638                                             auto_restart, NULL);
 639     else
 640       process_created = simcall_process_create(arg->name, parse_code, NULL, sg_host_get_name(host), kill_time, process->argc,
 641           (char**)process->argv, current_property_set,auto_restart);
 642
 643     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 644     if (!process_created) {
 645       return;
 646     }
 647   }
 648   current_property_set = NULL;
 649 }
 650
 651 void sg_platf_route_begin (sg_platf_route_cbarg_t route){
 652   route->link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 653 }
 654 void sg_platf_ASroute_begin (sg_platf_route_cbarg_t ASroute){
 655   ASroute->link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
 656 }
 657
 658 void sg_platf_route_end (sg_platf_route_cbarg_t route){
 659   sg_platf_new_route(route);
 660 }
 661 void sg_platf_ASroute_end (sg_platf_route_cbarg_t ASroute){
 662   sg_platf_new_ASroute(ASroute);
 663 }
 664
 665 void sg_platf_route_add_link (const char* link_id, sg_platf_route_cbarg_t route){
 666   char *link_name = xbt_strdup(link_id);
 667   xbt_dynar_push(route->link_list, &link_name);
 668 }
 669 void sg_platf_ASroute_add_link (const char* link_id, sg_platf_route_cbarg_t ASroute){
 670   char *link_name = xbt_strdup(link_id);
 671   xbt_dynar_push(ASroute->link_list, &link_name);
 672 }
 673
 674 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 675
 676 void sg_platf_end() {
 677   simgrid::surf::on_postparse();
 678 }
 679
 680 void sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 681 {
 682   if (!surf_parse_models_setup_already_called) {
 683     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 684      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 685      *
 686      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 687      * (FIXME: check it out by creating a file beginning with one of these tags)
 688      * but cluster and peer create ASes internally, so putting the code in there is ok.
 689      *
 690      * TODO, There used to be a guard protecting here against
 691      * xbt_dynar_length(sg_platf_AS_begin_cb_list) because we don't want to
 692      * initialize the models if we are parsing the file to get the deployment.
 693      * That could happen if the same file would be used for platf and deploy:
 694      * it'd contain AS tags even during the deploy parsing. Removing that guard
 695      * would result of the models to get re-inited when parsing for deploy.
 696      * Currently using the same file for platform and deployment is broken
 697      * however. This guard will have to ba adapted in order to make this feature
 698      * work again.
 699      */
 700     surf_parse_models_setup_already_called = 1;
 701     surf_config_models_setup();
 702   }
 703
 704   routing_AS_begin(AS);
 705   if (TRACE_is_enabled())
 706     sg_instr_AS_begin(AS);
 707 }
 708
 709 void sg_platf_new_AS_end()
 710 {
 711   routing_AS_end();
 712   if (TRACE_is_enabled())
 713     sg_instr_AS_end();
 714 }
 715 /* ***************************************** */
 716
 717 void sg_platf_rng_stream_init(unsigned long seed[6]) {
 718   RngStream_SetPackageSeed(seed);
 719   sg_platf_rng_stream = RngStream_CreateStream(NULL);
 720 }
 721
 722 RngStream sg_platf_rng_stream_get(const char* id) {
 723   RngStream stream = NULL;
 724   unsigned int id_hash;
 725
 726   stream = RngStream_CopyStream(sg_platf_rng_stream);
 727   id_hash = xbt_str_hash(id);
 728   RngStream_AdvanceState(stream, 0, (long)id_hash);
 729
 730   return stream;
 731 }