src/surf/surf_routing.cpp

   1 /* Copyright (c) 2009-2011, 2013-2015. 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 "surf_routing.hpp"
   8 #include "surf_routing_private.hpp"
   9 #include "surf_routing_cluster.hpp"
  10 #include "surf_routing_cluster_torus.hpp"
  11 #include "surf_routing_cluster_fat_tree.hpp"
  12
  13 #include "simgrid/platf_interface.h"    // platform creation API internal interface
  14 #include "simgrid/sg_config.h"
  15 #include "storage_interface.hpp"
  16
  17 #include "surf/surfxml_parse_values.h"
  18
  19 /*************
  20  * Callbacks *
  21  *************/
  22
  23 namespace simgrid {
  24 namespace surf {
  25
  26 simgrid::xbt::signal<void(simgrid::surf::NetCard*)> netcardCreatedCallbacks;
  27 simgrid::xbt::signal<void(simgrid::surf::As*)> asCreatedCallbacks;
  28
  29 }
  30 }
  31
  32 /**
  33  * @ingroup SURF_build_api
  34  * @brief A library containing all known hosts
  35  */
  36 xbt_dict_t host_list;
  37
  38 int COORD_HOST_LEVEL=0;         //Coordinates level
  39
  40 int MSG_FILE_LEVEL;             //Msg file level
  41
  42 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  43 int MSG_STORAGE_LEVEL;          //Msg storage level
  44 int SD_STORAGE_LEVEL;           //Simdag storage level
  45
  46 xbt_lib_t as_router_lib;
  47 int ROUTING_ASR_LEVEL;          //Routing level
  48 int COORD_ASR_LEVEL;            //Coordinates level
  49 int NS3_ASR_LEVEL;              //host node for ns3
  50 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  51
  52 static xbt_dict_t random_value = NULL;
  53
  54
  55 /** @brief Retrieve a netcard from its name
  56  *
  57  * Netcards are the thing that connect host or routers to the network
  58  */
  59 simgrid::surf::NetCard *sg_netcard_by_name_or_null(const char *name)
  60 {
  61   sg_host_t h = sg_host_by_name(name);
  62   simgrid::surf::NetCard *net_elm = h==NULL?NULL: h->pimpl_netcard;
  63   if (!net_elm)
  64     net_elm = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  65   return net_elm;
  66 }
  67
  68 /* Global vars */
  69 simgrid::surf::RoutingPlatf *routing_platf = NULL;
  70
  71 /* global parse functions */
  72 extern xbt_dynar_t mount_list;
  73
  74 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  75
  76 /** The current AS in the parsing */
  77 static simgrid::surf::As *current_routing = NULL;
  78 simgrid::surf::As* routing_get_current()
  79 {
  80   return current_routing;
  81 }
  82
  83 static void routing_parse_postparse(void);
  84
  85 /* this lines are only for replace use like index in the model table */
  86 typedef enum {
  87   SURF_MODEL_FULL = 0,
  88   SURF_MODEL_FLOYD,
  89   SURF_MODEL_DIJKSTRA,
  90   SURF_MODEL_DIJKSTRACACHE,
  91   SURF_MODEL_NONE,
  92   SURF_MODEL_VIVALDI,
  93   SURF_MODEL_CLUSTER,
  94   SURF_MODEL_TORUS_CLUSTER,
  95   SURF_MODEL_FAT_TREE_CLUSTER,
  96 } e_routing_types;
  97
  98 struct s_model_type routing_models[] = {
  99   {"Full",
 100    "Full routing data (fast, large memory requirements, fully expressive)",
 101    model_full_create, model_full_end},
 102   {"Floyd",
 103    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
 104    model_floyd_create, model_floyd_end},
 105   {"Dijkstra",
 106    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
 107    model_dijkstra_create, model_dijkstra_both_end},
 108   {"DijkstraCache",
 109    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
 110    model_dijkstracache_create, model_dijkstra_both_end},
 111   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
 112    model_none_create,  NULL},
 113   {"Vivaldi", "Vivaldi routing",
 114    model_vivaldi_create, NULL},
 115   {"Cluster", "Cluster routing",
 116    model_cluster_create, NULL},
 117   {"Torus_Cluster", "Torus Cluster routing",
 118    model_torus_cluster_create, NULL},
 119   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
 120    model_fat_tree_cluster_create, NULL},
 121   {NULL, NULL, NULL, NULL}
 122 };
 123
 124 /**
 125  * \brief Add a netcard connecting an host to the network element list
 126  * FIXME: integrate into host constructor
 127  */
 128 void sg_platf_new_netcard(sg_platf_host_link_cbarg_t netcard)
 129 {
 130   simgrid::surf::NetCard *info = sg_host_by_name(netcard->id)->pimpl_netcard;
 131   xbt_assert(info, "Host '%s' not found!", netcard->id);
 132   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 133       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 134       "You have to be in model Cluster to use tag host_link!");
 135
 136   s_surf_parsing_link_up_down_t link_up_down;
 137   link_up_down.link_up = Link::byName(netcard->link_up);
 138   link_up_down.link_down = Link::byName(netcard->link_down);
 139
 140   xbt_assert(link_up_down.link_up, "Link '%s' not found!",netcard->link_up);
 141   xbt_assert(link_up_down.link_down, "Link '%s' not found!",netcard->link_down);
 142
 143   if(!current_routing->p_linkUpDownList)
 144     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 145
 146   // If dynar is is greater than netcard id and if the host_link is already defined
 147   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
 148       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
 149         surf_parse_error("Host_link for '%s' is already defined!",netcard->id);
 150
 151   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
 152   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
 153 }
 154
 155 /**
 156  * \brief Add a "host" to the network element list
 157  */
 158 simgrid::surf::NetCard *routing_add_host(
 159   simgrid::surf::As* current_routing, sg_platf_host_cbarg_t host)
 160 {
 161   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 162     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 163   xbt_assert(!sg_host_by_name(host->id),
 164                      "Reading a host, processing unit \"%s\" already exists", host->id);
 165
 166   simgrid::surf::NetCard *netcard =
 167     new simgrid::surf::NetCardImpl(xbt_strdup(host->id),
 168                                                     -1,
 169                                                     SURF_NETWORK_ELEMENT_HOST,
 170                                                     current_routing);
 171   netcard->setId(current_routing->parsePU(netcard));
 172   sg_host_t h = sg_host_by_name_or_create(host->id);
 173   h->pimpl_netcard = netcard;
 174   XBT_DEBUG("Having set name '%s' id '%d'", host->id, netcard->getId());
 175   simgrid::surf::netcardCreatedCallbacks(netcard);
 176
 177   if(mount_list){
 178     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 179     mount_list = NULL;
 180   }
 181
 182   if (host->coord && strcmp(host->coord, "")) {
 183     unsigned int cursor;
 184     char*str;
 185
 186     if (!COORD_HOST_LEVEL)
 187       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 188     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 189     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 190     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 191     xbt_dynar_foreach(ctn_str,cursor, str) {
 192       double val = atof(str);
 193       xbt_dynar_push(ctn,&val);
 194     }
 195     xbt_dynar_shrink(ctn, 0);
 196     xbt_dynar_free(&ctn_str);
 197     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
 198     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 199   }
 200
 201   return netcard;
 202 }
 203
 204 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace)
 205 {
 206   tmgr_trace_t tmgr_trace;
 207   if (!trace->file || strcmp(trace->file, "") != 0) {
 208     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 209   } else if (strcmp(trace->pc_data, "") == 0) {
 210     tmgr_trace = NULL;
 211   } else {
 212     tmgr_trace =
 213           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 214                                      trace->periodicity);
 215   }
 216   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 217 }
 218
 219 void sg_platf_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 220 {
 221   xbt_assert(xbt_dict_get_or_null
 222               (traces_set_list, trace_connect->trace),
 223               "Cannot connect trace %s to %s: trace unknown",
 224               trace_connect->trace,
 225               trace_connect->element);
 226
 227   switch (trace_connect->kind) {
 228   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 229     xbt_dict_set(trace_connect_list_host_avail,
 230         trace_connect->trace,
 231         xbt_strdup(trace_connect->element), NULL);
 232     break;
 233   case SURF_TRACE_CONNECT_KIND_POWER:
 234     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 235         xbt_strdup(trace_connect->element), NULL);
 236     break;
 237   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 238     xbt_dict_set(trace_connect_list_link_avail,
 239         trace_connect->trace,
 240         xbt_strdup(trace_connect->element), NULL);
 241     break;
 242   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 243     xbt_dict_set(trace_connect_list_bandwidth,
 244         trace_connect->trace,
 245         xbt_strdup(trace_connect->element), NULL);
 246     break;
 247   case SURF_TRACE_CONNECT_KIND_LATENCY:
 248     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 249         xbt_strdup(trace_connect->element), NULL);
 250     break;
 251   default:
 252         surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 253         trace_connect->trace, trace_connect->element);
 254     break;
 255   }
 256 }
 257
 258 /**
 259  * \brief Make a new routing component to the platform
 260  *
 261  * Add a new autonomous system to the platform. Any elements (such as host,
 262  * router or sub-AS) added after this call and before the corresponding call
 263  * to sg_platf_new_AS_close() will be added to this AS.
 264  *
 265  * Once this function was called, the configuration concerning the used
 266  * models cannot be changed anymore.
 267  *
 268  * @param AS_id name of this autonomous system. Must be unique in the platform
 269  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 270  */
 271 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 272 {
 273   XBT_DEBUG("routing_AS_begin");
 274   routing_model_description_t model = NULL;
 275
 276   xbt_assert(!xbt_lib_get_or_null
 277              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 278              "The AS \"%s\" already exists", AS->id);
 279
 280   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 281                             * controlling the level of configuration to prevent
 282                             * any further config */
 283
 284   /* search the routing model */
 285   switch(AS->routing){
 286     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
 287     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 288     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 289     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 290     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 291     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 292     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 293     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 294     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 295     default: xbt_die("Not a valid model!!!");
 296     break;
 297   }
 298
 299   /* make a new routing component */
 300   simgrid::surf::As *new_as = model->create();
 301
 302   new_as->p_modelDesc = model;
 303   new_as->p_hierarchy = SURF_ROUTING_NULL;
 304   new_as->p_name = xbt_strdup(AS->id);
 305
 306   simgrid::surf::NetCard *info =
 307     new simgrid::surf::NetCardImpl(xbt_strdup(new_as->p_name),
 308                                             -1,
 309                                             SURF_NETWORK_ELEMENT_AS,
 310                                             current_routing);
 311   if (current_routing == NULL && routing_platf->p_root == NULL) {
 312
 313     /* it is the first one */
 314     new_as->p_routingFather = NULL;
 315     routing_platf->p_root = new_as;
 316     info->setId(-1);
 317   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 318
 319     xbt_assert(!xbt_dict_get_or_null
 320                (current_routing->p_routingSons, AS->id),
 321                "The AS \"%s\" already exists", AS->id);
 322     /* it is a part of the tree */
 323     new_as->p_routingFather = current_routing;
 324     /* set the father behavior */
 325     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 326       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 327     /* add to the sons dictionary */
 328     xbt_dict_set(current_routing->p_routingSons, AS->id,
 329                  (void *) new_as, NULL);
 330     /* add to the father element list */
 331     info->setId(current_routing->parseAS(info));
 332   } else {
 333     THROWF(arg_error, 0, "All defined components must belong to a AS");
 334   }
 335
 336   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 337               (void *) info);
 338   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 339
 340   /* set the new current component of the tree */
 341   current_routing = new_as;
 342   current_routing->p_netcard = info;
 343
 344   simgrid::surf::netcardCreatedCallbacks(info);
 345   simgrid::surf::asCreatedCallbacks(new_as);
 346 }
 347
 348 /**
 349  * \brief Specify that the current description of AS is finished
 350  *
 351  * Once you've declared all the content of your AS, you have to close
 352  * it with this call. Your AS is not usable until you call this function.
 353  *
 354  * @fixme: this call is not as robust as wanted: bad things WILL happen
 355  * if you call it twice for the same AS, or if you forget calling it, or
 356  * even if you add stuff to a closed AS
 357  *
 358  */
 359 void routing_AS_end()
 360 {
 361
 362   if (current_routing == NULL) {
 363     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 364   } else {
 365     if (current_routing->p_modelDesc->end)
 366       current_routing->p_modelDesc->end(current_routing);
 367     current_routing = current_routing->p_routingFather;
 368   }
 369 }
 370
 371 /* Aux Business methods */
 372
 373 /**
 374  * \brief Get the AS father and the first elements of the chain
 375  *
 376  * \param src the source host name
 377  * \param dst the destination host name
 378  *
 379  * Get the common father of the to processing units, and the first different
 380  * father in the chain
 381  */
 382 static void elements_father(sg_netcard_t src, sg_netcard_t dst,
 383                             AS_t * res_father,
 384                             AS_t * res_src,
 385                             AS_t * res_dst)
 386 {
 387   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 388 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 389   simgrid::surf::As *src_as, *dst_as;
 390   simgrid::surf::As *path_src[ELEMENTS_FATHER_MAXDEPTH];
 391   simgrid::surf::As *path_dst[ELEMENTS_FATHER_MAXDEPTH];
 392   int index_src = 0;
 393   int index_dst = 0;
 394   simgrid::surf::As *current;
 395   simgrid::surf::As *current_src;
 396   simgrid::surf::As *current_dst;
 397   simgrid::surf::As *father;
 398
 399   /* (1) find the as where the src and dst are located */
 400   sg_netcard_t src_data = src;
 401   sg_netcard_t dst_data = dst;
 402   src_as = src_data->getRcComponent();
 403   dst_as = dst_data->getRcComponent();
 404 #ifndef NDEBUG
 405   char* src_name = src_data->getName();
 406   char* dst_name = dst_data->getName();
 407 #endif
 408
 409   xbt_assert(src_as && dst_as,
 410              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 411
 412   /* (2) find the path to the root routing component */
 413   for (current = src_as; current != NULL; current = current->p_routingFather) {
 414     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 415       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 416     path_src[index_src++] = current;
 417   }
 418   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 419     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 420       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 421     path_dst[index_dst++] = current;
 422   }
 423
 424   /* (3) find the common father */
 425   do {
 426     current_src = path_src[--index_src];
 427     current_dst = path_dst[--index_dst];
 428   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 429
 430   /* (4) they are not in the same routing component, make the path */
 431   if (current_src == current_dst)
 432     father = current_src;
 433   else
 434     father = path_src[index_src + 1];
 435
 436   /* (5) result generation */
 437   *res_father = father;         /* first the common father of src and dst */
 438   *res_src = current_src;       /* second the first different father of src */
 439   *res_dst = current_dst;       /* three  the first different father of dst */
 440
 441 #undef ELEMENTS_FATHER_MAXDEPTH
 442 }
 443
 444 /* Global Business methods */
 445
 446 /**
 447  * \brief Recursive function for get_route_latency
 448  *
 449  * \param src the source host name
 450  * \param dst the destination host name
 451  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 452  * \param *latency the latency, if needed
 453  *
 454  * This function is called by "get_route" and "get_latency". It allows to walk
 455  * recursively through the ASes tree.
 456  */
 457 static void _get_route_and_latency(
 458   simgrid::surf::NetCard *src, simgrid::surf::NetCard *dst,
 459   xbt_dynar_t * links, double *latency)
 460 {
 461   s_sg_platf_route_cbarg_t route = SG_PLATF_ROUTE_INITIALIZER;
 462   memset(&route,0,sizeof(route));
 463
 464   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 465   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 466
 467   /* Find how src and dst are interconnected */
 468   simgrid::surf::As *common_father, *src_father, *dst_father;
 469   elements_father(src, dst, &common_father, &src_father, &dst_father);
 470   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 471       common_father->p_name, src_father->p_name, dst_father->p_name);
 472
 473   /* Check whether a direct bypass is defined */
 474   sg_platf_route_cbarg_t e_route_bypass = NULL;
 475   //FIXME:REMOVE:if (common_father->get_bypass_route)
 476
 477   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 478
 479   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 480   if (e_route_bypass) {
 481     xbt_dynar_merge(links, &e_route_bypass->link_list);
 482     generic_free_route(e_route_bypass);
 483     return;
 484   }
 485
 486   /* If src and dst are in the same AS, life is good */
 487   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 488     route.link_list = *links;
 489     common_father->getRouteAndLatency(src, dst, &route, latency);
 490     // if vivaldi latency+=vivaldi(src,dst)
 491     return;
 492   }
 493
 494   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 495
 496   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 497   // Find the net_card corresponding to father
 498   simgrid::surf::NetCard *src_father_netcard = src_father->p_netcard;
 499   simgrid::surf::NetCard *dst_father_netcard = dst_father->p_netcard;
 500
 501   common_father->getRouteAndLatency(src_father_netcard, dst_father_netcard,
 502                                     &route, latency);
 503
 504   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 505       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 506
 507   sg_netcard_t src_gateway_net_elm = route.gw_src;
 508   sg_netcard_t dst_gateway_net_elm = route.gw_dst;
 509
 510   /* If source gateway is not our source, we have to recursively find our way up to this point */
 511   if (src != src_gateway_net_elm)
 512     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 513   xbt_dynar_merge(links, &route.link_list);
 514
 515   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 516   if (dst_gateway_net_elm != dst)
 517     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 518
 519 }
 520
 521 AS_t surf_platf_get_root(routing_platf_t platf){
 522   return platf->p_root;
 523 }
 524
 525 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_netcard_t netcard){
 526   return netcard->getRcType();
 527 }
 528
 529 namespace simgrid {
 530 namespace surf {
 531
 532 /**
 533  * \brief Find a route between hosts
 534  *
 535  * \param src the network_element_t for src host
 536  * \param dst the network_element_t for dst host
 537  * \param route where to store the list of links.
 538  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 539  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 540  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 541  * \pre route!=NULL
 542  *
 543  * walk through the routing components tree and find a route between hosts
 544  * by calling each "get_route" function in each routing component.
 545  */
 546 void RoutingPlatf::getRouteAndLatency(NetCard *src, NetCard *dst, xbt_dynar_t* route, double *latency)
 547 {
 548   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 549   if (NULL == *route) {
 550     xbt_dynar_reset(routing_platf->p_lastRoute);
 551     *route = routing_platf->p_lastRoute;
 552   }
 553
 554   _get_route_and_latency(src, dst, route, latency);
 555
 556   xbt_assert(!latency || *latency >= 0.0,
 557              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 558 }
 559
 560 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 561   return recursiveGetOneLinkRoutes(p_root);
 562 }
 563
 564 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(As *rc)
 565 {
 566   xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
 567
 568   //adding my one link routes
 569   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 570   if (onelink_mine)
 571     xbt_dynar_merge(&ret,&onelink_mine);
 572
 573   //recursing
 574   char *key;
 575   xbt_dict_cursor_t cursor = NULL;
 576   AS_t rc_child;
 577   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 578     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 579     if (onelink_child)
 580       xbt_dynar_merge(&ret,&onelink_child);
 581   }
 582   return ret;
 583 }
 584
 585 }
 586 }
 587
 588 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 589 {
 590   simgrid::surf::NetCard *rc = sg_netcard_by_name_or_null(name);
 591   if (rc)
 592     return rc->getRcType();
 593
 594   return SURF_NETWORK_ELEMENT_NULL;
 595 }
 596
 597 /**
 598  * \brief Generic method: create the global routing schema
 599  *
 600  * Make a global routing structure and set all the parsing functions.
 601  */
 602 void routing_model_create( void *loopback)
 603 {
 604   /* config the uniq global routing */
 605   routing_platf = new simgrid::surf::RoutingPlatf();
 606   routing_platf->p_root = NULL;
 607   routing_platf->p_loopback = loopback;
 608   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 609   /* no current routing at moment */
 610   current_routing = NULL;
 611 }
 612
 613
 614 /* ************************************************** */
 615 /* ********** PATERN FOR NEW ROUTING **************** */
 616
 617 /* The minimal configuration of a new routing model need the next functions,
 618  * also you need to set at the start of the file, the new model in the model
 619  * list. Remember keep the null ending of the list.
 620  */
 621 /*** Routing model structure ***/
 622 // typedef struct {
 623 //   s_routing_component_t generic_routing;
 624 //   /* things that your routing model need */
 625 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 626
 627 /*** Parse routing model functions ***/
 628 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 629 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 630 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 631 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 632 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 633
 634 /*** Business methods ***/
 635 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 636 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 637 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 638
 639 /*** Creation routing model functions ***/
 640 // static void* model_NEW_create(void) {
 641 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 642 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 643 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 644 //   new_component->generic_routing.set_route = model_NEW_set_route;
 645 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 646 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 647 //   new_component->generic_routing.get_route = NEW_get_route;
 648 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 649 //   new_component->generic_routing.finalize = NEW_finalize;
 650 //   /* initialization of internal structures */
 651 //   return new_component;
 652 // } /* mandatory */
 653 // static void  model_NEW_load(void) {}   /* mandatory */
 654 // static void  model_NEW_unload(void) {} /* mandatory */
 655 // static void  model_NEW_end(void) {}    /* mandatory */
 656
 657 /* ************************************************************************** */
 658 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 659
 660 void routing_cluster_add_backbone(void* bb) {
 661   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 662         "You have to be in model Cluster to use tag backbone!");
 663   xbt_assert(!static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone, "The backbone link is already defined!");
 664   static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone =
 665     static_cast<simgrid::surf::Link*>(bb);
 666   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 667 }
 668
 669 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 670 {
 671   int start, end, i;
 672   char *groups , *host_id , *link_id = NULL;
 673   unsigned int iter;
 674   xbt_dynar_t radical_elements;
 675   xbt_dynar_t radical_ends;
 676
 677   //Make all hosts
 678   radical_elements = xbt_str_split(cabinet->radical, ",");
 679   xbt_dynar_foreach(radical_elements, iter, groups) {
 680
 681     radical_ends = xbt_str_split(groups, "-");
 682     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 683
 684     switch (xbt_dynar_length(radical_ends)) {
 685     case 1:
 686       end = start;
 687       break;
 688     case 2:
 689       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 690       break;
 691     default:
 692       surf_parse_error("Malformed radical");
 693       break;
 694     }
 695     s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 696     memset(&host, 0, sizeof(host));
 697     host.initiallyOn   = 1;
 698     host.pstate        = 0;
 699     host.speed_scale   = 1.0;
 700     host.core_amount   = 1;
 701
 702     s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 703     memset(&link, 0, sizeof(link));
 704     link.initiallyOn = 1;
 705     link.policy    = SURF_LINK_FULLDUPLEX;
 706     link.latency   = cabinet->lat;
 707     link.bandwidth = cabinet->bw;
 708
 709     s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
 710     memset(&host_link, 0, sizeof(host_link));
 711
 712     for (i = start; i <= end; i++) {
 713       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 714       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 715       host.id                      = host_id;
 716       link.id                      = link_id;
 717       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 718       xbt_dynar_push(host.speed_peak,&cabinet->speed);
 719       sg_platf_new_host(&host);
 720       xbt_dynar_free(&host.speed_peak);
 721       sg_platf_new_link(&link);
 722
 723       char* link_up       = bprintf("%s_UP",link_id);
 724       char* link_down     = bprintf("%s_DOWN",link_id);
 725       host_link.id        = host_id;
 726       host_link.link_up   = link_up;
 727       host_link.link_down = link_down;
 728       sg_platf_new_netcard(&host_link);
 729
 730       free(host_id);
 731       free(link_id);
 732       free(link_up);
 733       free(link_down);
 734     }
 735
 736     xbt_dynar_free(&radical_ends);
 737   }
 738   xbt_dynar_free(&radical_elements);
 739 }
 740
 741 void routing_new_cluster(sg_platf_cluster_cbarg_t cluster)
 742 {
 743   using simgrid::surf::AsCluster;
 744   using simgrid::surf::AsClusterTorus;
 745   using simgrid::surf::AsClusterFatTree;
 746
 747   char *host_id, *groups, *link_id = NULL;
 748   xbt_dict_t patterns = NULL;
 749   int rankId=0;
 750
 751   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 752   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 753
 754   unsigned int iter;
 755   int start, end, i;
 756   xbt_dynar_t radical_elements;
 757   xbt_dynar_t radical_ends;
 758
 759   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 760       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 761     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 762     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 763     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 764     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 765   }
 766
 767   /* parse the topology attribute. If we are not in a flat cluster,
 768    * switch to the right mode and initialize the routing with
 769    * the parameters in topo_parameters attribute
 770    */
 771   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 772   AS.id = cluster->id;
 773
 774   if(cluster->topology == SURF_CLUSTER_TORUS){
 775     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 776     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 777     sg_platf_new_AS_begin(&AS);
 778     ((AsClusterTorus*)current_routing)->parse_specific_arguments(cluster);
 779   }
 780   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 781     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 782     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 783     sg_platf_new_AS_begin(&AS);
 784     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 785   }
 786
 787   else{
 788     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 789     AS.routing = A_surfxml_AS_routing_Cluster;
 790     sg_platf_new_AS_begin(&AS);
 791   }
 792
 793   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 794       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 795       ((AsCluster*)current_routing)->p_has_loopback=1;
 796   }
 797
 798   if(cluster->limiter_link!=0){
 799       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 800       ((AsCluster*)current_routing)->p_has_limiter=1;
 801   }
 802
 803
 804
 805   current_routing->p_linkUpDownList
 806             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 807
 808   //Make all hosts
 809   radical_elements = xbt_str_split(cluster->radical, ",");
 810   xbt_dynar_foreach(radical_elements, iter, groups) {
 811
 812     radical_ends = xbt_str_split(groups, "-");
 813     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 814
 815     switch (xbt_dynar_length(radical_ends)) {
 816     case 1:
 817       end = start;
 818       break;
 819     case 2:
 820       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 821       break;
 822     default:
 823       surf_parse_error("Malformed radical");
 824       break;
 825     }
 826     for (i = start; i <= end; i++) {
 827       host_id =
 828           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 829       link_id = bprintf("%s_link_%d", cluster->id, i);
 830
 831       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 832
 833       memset(&host, 0, sizeof(host));
 834       host.id = host_id;
 835       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 836           xbt_dict_cursor_t cursor=NULL;
 837           char *key,*data;
 838           host.properties = xbt_dict_new();
 839
 840           xbt_dict_foreach(cluster->properties,cursor,key,data) {
 841                   xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 842           }
 843       }
 844       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 845         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 846         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 847         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 848         host.speed_trace = tmgr_trace_new_from_file(avail_file);
 849         xbt_free(avail_file);
 850       } else {
 851         XBT_DEBUG("\tavailability_file=\"\"");
 852       }
 853
 854       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 855         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 856         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 857         host.state_trace = tmgr_trace_new_from_file(avail_file);
 858         xbt_free(avail_file);
 859       } else {
 860         XBT_DEBUG("\tstate_file=\"\"");
 861       }
 862
 863       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 864       xbt_dynar_push(host.speed_peak,&cluster->speed);
 865       host.pstate = 0;
 866
 867       //host.power_peak = cluster->power;
 868       host.speed_scale = 1.0;
 869       host.core_amount = cluster->core_amount;
 870       host.initiallyOn = 1;
 871       host.coord = "";
 872       sg_platf_new_host(&host);
 873       xbt_dynar_free(&host.speed_peak);
 874       XBT_DEBUG("</host>");
 875
 876       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 877                 cluster->bw, cluster->lat);
 878
 879
 880       s_surf_parsing_link_up_down_t info_lim, info_loop;
 881       // All links are saved in a matrix;
 882       // every row describes a single node; every node
 883       // may have multiple links.
 884       // the first column may store a link from x to x if p_has_loopback is set
 885       // the second column may store a limiter link if p_has_limiter is set
 886       // other columns are to store one or more link for the node
 887
 888       //add a loopback link
 889       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 890         char *tmp_link = bprintf("%s_loopback", link_id);
 891         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 892                 cluster->limiter_link);
 893
 894
 895         memset(&link, 0, sizeof(link));
 896         link.id        = tmp_link;
 897         link.bandwidth = cluster->loopback_bw;
 898         link.latency   = cluster->loopback_lat;
 899         link.initiallyOn = 1;
 900         link.policy    = SURF_LINK_FATPIPE;
 901         sg_platf_new_link(&link);
 902         info_loop.link_up   = Link::byName(tmp_link);
 903         info_loop.link_down = info_loop.link_up;
 904         free(tmp_link);
 905         xbt_dynar_set(current_routing->p_linkUpDownList,
 906           rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node, &info_loop);
 907       }
 908
 909       //add a limiter link (shared link to account for maximal bandwidth of the node)
 910       if(cluster->limiter_link!=0){
 911         char *tmp_link = bprintf("%s_limiter", link_id);
 912         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 913                 cluster->limiter_link);
 914
 915
 916         memset(&link, 0, sizeof(link));
 917         link.id = tmp_link;
 918         link.bandwidth = cluster->limiter_link;
 919         link.latency = 0;
 920         link.initiallyOn = 1;
 921         link.policy = SURF_LINK_SHARED;
 922         sg_platf_new_link(&link);
 923         info_lim.link_up = Link::byName(tmp_link);
 924         info_lim.link_down = info_lim.link_up;
 925         free(tmp_link);
 926         auto as_cluster = static_cast<AsCluster*>(current_routing);
 927         xbt_dynar_set(current_routing->p_linkUpDownList,
 928             rankId*(as_cluster)->p_nb_links_per_node + as_cluster->p_has_loopback ,
 929             &info_lim);
 930
 931       }
 932
 933
 934       //call the cluster function that adds the others links
 935       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 936         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 937       }
 938       else {
 939       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 940                   static_cast<AsCluster*>(current_routing)->p_nb_links_per_node
 941           + static_cast<AsCluster*>(current_routing)->p_has_loopback
 942           + static_cast<AsCluster*>(current_routing)->p_has_limiter );
 943       }
 944       xbt_free(link_id);
 945       xbt_free(host_id);
 946       rankId++;
 947     }
 948
 949     xbt_dynar_free(&radical_ends);
 950   }
 951   xbt_dynar_free(&radical_elements);
 952
 953   // For fat trees, the links must be created once all nodes have been added
 954   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
 955     static_cast<simgrid::surf::AsClusterFatTree*>(current_routing)->create_links();
 956   }
 957   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 958   // and it's very useful to connect clusters together
 959   XBT_DEBUG(" ");
 960   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 961   char *newid = NULL;
 962   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
 963   memset(&router, 0, sizeof(router));
 964   router.id = cluster->router_id;
 965   router.coord = "";
 966   if (!router.id || !strcmp(router.id, ""))
 967     router.id = newid =
 968         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 969                 cluster->suffix);
 970   sg_platf_new_router(&router);
 971   ((AsCluster*)current_routing)->p_router = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 972   free(newid);
 973
 974   //Make the backbone
 975   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 976     char *link_backbone = bprintf("%s_backbone", cluster->id);
 977     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 978               cluster->bb_bw, cluster->bb_lat);
 979
 980     memset(&link, 0, sizeof(link));
 981     link.id        = link_backbone;
 982     link.bandwidth = cluster->bb_bw;
 983     link.latency   = cluster->bb_lat;
 984     link.initiallyOn = 1;
 985     link.policy    = cluster->bb_sharing_policy;
 986
 987     sg_platf_new_link(&link);
 988
 989     routing_cluster_add_backbone(Link::byName(link_backbone));
 990
 991     free(link_backbone);
 992   }
 993
 994   XBT_DEBUG("</AS>");
 995   sg_platf_new_AS_end();
 996   XBT_DEBUG(" ");
 997   xbt_dict_free(&patterns); // no op if it were never set
 998 }
 999
1000 static void routing_parse_postparse(void) {
1001   xbt_dict_free(&random_value);
1002 }
1003
1004 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
1005 {
1006   using simgrid::surf::NetCard;
1007   using simgrid::surf::AsCluster;
1008
1009   char *host_id = NULL;
1010   char *link_id = NULL;
1011   char *router_id = NULL;
1012
1013   XBT_DEBUG(" ");
1014   host_id = HOST_PEER(peer->id);
1015   link_id = LINK_PEER(peer->id);
1016   router_id = ROUTER_PEER(peer->id);
1017
1018   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1019   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1020   AS.id                    = peer->id;
1021   AS.routing               = A_surfxml_AS_routing_Cluster;
1022   sg_platf_new_AS_begin(&AS);
1023
1024   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1025
1026   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
1027   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
1028   memset(&host, 0, sizeof(host));
1029   host.initiallyOn = 1;
1030   host.id = host_id;
1031
1032   host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
1033   xbt_dynar_push(host.speed_peak,&peer->speed);
1034   host.pstate = 0;
1035   //host.power_peak = peer->power;
1036   host.speed_scale = 1.0;
1037   host.speed_trace = peer->availability_trace;
1038   host.state_trace = peer->state_trace;
1039   host.core_amount = 1;
1040   sg_platf_new_host(&host);
1041   xbt_dynar_free(&host.speed_peak);
1042
1043   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
1044   memset(&link, 0, sizeof(link));
1045   link.initiallyOn = 1;
1046   link.policy  = SURF_LINK_SHARED;
1047   link.latency = peer->lat;
1048
1049   char* link_up = bprintf("%s_UP",link_id);
1050   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1051             peer->bw_out, peer->lat);
1052   link.id = link_up;
1053   link.bandwidth = peer->bw_out;
1054   sg_platf_new_link(&link);
1055
1056   char* link_down = bprintf("%s_DOWN",link_id);
1057   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1058             peer->bw_in, peer->lat);
1059   link.id = link_down;
1060   link.bandwidth = peer->bw_in;
1061   sg_platf_new_link(&link);
1062
1063   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1064   s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
1065   memset(&host_link, 0, sizeof(host_link));
1066   host_link.id        = host_id;
1067   host_link.link_up   = link_up;
1068   host_link.link_down = link_down;
1069   sg_platf_new_netcard(&host_link);
1070
1071   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1072   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
1073   memset(&router, 0, sizeof(router));
1074   router.id = router_id;
1075   router.coord = peer->coord;
1076   sg_platf_new_router(&router);
1077   static_cast<AsCluster*>(current_routing)->p_router = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1078
1079   XBT_DEBUG("</AS>");
1080   sg_platf_new_AS_end();
1081   XBT_DEBUG(" ");
1082
1083   //xbt_dynar_free(&tab_elements_num);
1084   free(router_id);
1085   free(host_id);
1086   free(link_id);
1087   free(link_up);
1088   free(link_down);
1089 }
1090
1091 // static void routing_parse_Srandom(void)
1092 // {
1093 //   double mean, std, min, max, seed;
1094 //   char *random_id = A_surfxml_random_id;
1095 //   char *random_radical = A_surfxml_random_radical;
1096 //   char *rd_name = NULL;
1097 //   char *rd_value;
1098 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1099 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1100 //   min = surf_parse_get_double(A_surfxml_random_min);
1101 //   max = surf_parse_get_double(A_surfxml_random_max);
1102 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1103
1104 //   double res = 0;
1105 //   int i = 0;
1106 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1107 //   char *tmpbuf;
1108
1109 //   xbt_dynar_t radical_elements;
1110 //   unsigned int iter;
1111 //   char *groups;
1112 //   int start, end;
1113 //   xbt_dynar_t radical_ends;
1114
1115 //   switch (A_surfxml_random_generator) {
1116 //   case AU_surfxml_random_generator:
1117 //   case A_surfxml_random_generator_NONE:
1118 //     random->generator = NONE;
1119 //     break;
1120 //   case A_surfxml_random_generator_DRAND48:
1121 //     random->generator = DRAND48;
1122 //     break;
1123 //   case A_surfxml_random_generator_RAND:
1124 //     random->generator = RAND;
1125 //     break;
1126 //   case A_surfxml_random_generator_RNGSTREAM:
1127 //     random->generator = RNGSTREAM;
1128 //     break;
1129 //   default:
1130 //     surf_parse_error("Invalid random generator");
1131 //     break;
1132 //   }
1133 //   random->seed = seed;
1134 //   random->min = min;
1135 //   random->max = max;
1136
1137 //   /* Check user stupidities */
1138 //   if (max < min)
1139 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1140 //   if (mean < min)
1141 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1142 //   if (mean > max)
1143 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1144
1145 //   /* normalize the mean and standard deviation before storing */
1146 //   random->mean = (mean - min) / (max - min);
1147 //   random->std = std / (max - min);
1148
1149 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1150 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1151 //            random->mean, random->std);
1152
1153 //   XBT_DEBUG
1154 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1155 //        random_id, random->min, random->max, random->mean, random->std,
1156 //        (int)random->generator, random->seed, random_radical);
1157
1158 //   if (!random_value)
1159 //     random_value = xbt_dict_new_homogeneous(free);
1160
1161 //   if (!strcmp(random_radical, "")) {
1162 //     res = random_generate(random);
1163 //     rd_value = bprintf("%f", res);
1164 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1165 //   } else {
1166 //     radical_elements = xbt_str_split(random_radical, ",");
1167 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1168 //       radical_ends = xbt_str_split(groups, "-");
1169 //       switch (xbt_dynar_length(radical_ends)) {
1170 //       case 1:
1171 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1172 //                    "Custom Random '%s' already exists !", random_id);
1173 //         res = random_generate(random);
1174 //         tmpbuf =
1175 //             bprintf("%s%d", random_id,
1176 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1177 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1178 //         xbt_free(tmpbuf);
1179 //         break;
1180
1181 //       case 2:
1182 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1183 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1184 //         for (i = start; i <= end; i++) {
1185 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1186 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1187 //                                                                     random_id,
1188 //                                                                     i));
1189 //           res = random_generate(random);
1190 //           tmpbuf = bprintf("%s%d", random_id, i);
1191 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1192 //           xbt_free(tmpbuf);
1193 //         }
1194 //         break;
1195 //       default:
1196 //         XBT_CRITICAL("Malformed radical");
1197 //         break;
1198 //       }
1199 //       res = random_generate(random);
1200 //       rd_name = bprintf("%s_router", random_id);
1201 //       rd_value = bprintf("%f", res);
1202 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1203
1204 //       xbt_dynar_free(&radical_ends);
1205 //     }
1206 //     free(rd_name);
1207 //     xbt_dynar_free(&radical_elements);
1208 //   }
1209 // }
1210
1211 static void check_disk_attachment()
1212 {
1213   xbt_lib_cursor_t cursor;
1214   char *key;
1215   void **data;
1216   simgrid::surf::NetCard *host_elm;
1217   xbt_lib_foreach(storage_lib, cursor, key, data) {
1218     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1219           simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1220           host_elm = sg_netcard_by_name_or_null(storage->p_attach);
1221           if(!host_elm)
1222                   surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1223     }
1224   }
1225 }
1226
1227 void routing_register_callbacks()
1228 {
1229   sg_platf_postparse_add_cb(routing_parse_postparse);
1230   sg_platf_postparse_add_cb(check_disk_attachment);
1231
1232   instr_routing_define_callbacks();
1233 }
1234
1235 /**
1236  * \brief Recursive function for finalize
1237  *
1238  * \param rc the source host name
1239  *
1240  * This fuction is call by "finalize". It allow to finalize the
1241  * AS or routing components. It delete all the structures.
1242  */
1243 static void finalize_rec(simgrid::surf::As *as) {
1244   xbt_dict_cursor_t cursor = NULL;
1245   char *key;
1246   AS_t elem;
1247
1248   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1249     finalize_rec(elem);
1250   }
1251
1252   delete as;;
1253 }
1254
1255 /** \brief Frees all memory allocated by the routing module */
1256 void routing_exit(void) {
1257   delete routing_platf;
1258 }
1259
1260 namespace simgrid {
1261 namespace surf {
1262
1263 RoutingPlatf::~RoutingPlatf()
1264 {
1265         xbt_dynar_free(&p_lastRoute);
1266         finalize_rec(p_root);
1267 }
1268
1269 }
1270 }
1271
1272 AS_t surf_AS_get_routing_root() {
1273   return routing_platf->p_root;
1274 }
1275
1276 const char *surf_AS_get_name(simgrid::surf::As *as) {
1277   return as->p_name;
1278 }
1279
1280 static simgrid::surf::As *surf_AS_recursive_get_by_name(
1281   simgrid::surf::As *current, const char * name)
1282 {
1283   xbt_dict_cursor_t cursor = NULL;
1284   char *key;
1285   AS_t elem;
1286   simgrid::surf::As *tmp = NULL;
1287
1288   if(!strcmp(current->p_name, name))
1289     return current;
1290
1291   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1292     tmp = surf_AS_recursive_get_by_name(elem, name);
1293     if(tmp != NULL ) {
1294         break;
1295     }
1296   }
1297   return tmp;
1298 }
1299
1300 simgrid::surf::As *surf_AS_get_by_name(const char * name)
1301 {
1302   simgrid::surf::As *as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1303   if(as == NULL)
1304     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1305   return as;
1306 }
1307
1308 xbt_dict_t surf_AS_get_routing_sons(simgrid::surf::As *as)
1309 {
1310   return as->p_routingSons;
1311 }
1312
1313 const char *surf_AS_get_model(simgrid::surf::As *as)
1314 {
1315   return as->p_modelDesc->name;
1316 }
1317
1318 xbt_dynar_t surf_AS_get_hosts(simgrid::surf::As *as)
1319 {
1320   xbt_dynar_t elms = as->p_indexNetworkElm;
1321   int count = xbt_dynar_length(elms);
1322   xbt_dynar_t res =  xbt_dynar_new(sizeof(sg_host_t), NULL);
1323   for (int index = 0; index < count; index++) {
1324      sg_netcard_t relm =
1325       xbt_dynar_get_as(elms, index, simgrid::surf::NetCard*);
1326      sg_host_t delm = simgrid::s4u::Host::by_name_or_null(relm->getName());
1327      if (delm!=NULL) {
1328        xbt_dynar_push(res, &delm);
1329      }
1330   }
1331   return res;
1332 }
1333
1334 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1335   as->getGraph(graph, nodes, edges);
1336 }