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::surf::signal<void(simgrid::surf::NetCard*)> routingEdgeCreatedCallbacks;
  27 simgrid::surf::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->p_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)->p_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->p_netcard = netcard;
 174   XBT_DEBUG("Having set name '%s' id '%d'", host->id, netcard->getId());
 175   simgrid::surf::routingEdgeCreatedCallbacks(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 /**
 205  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 206  */
 207 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 208 {
 209   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
 210              "no defined method \"set_ASroute\" in \"%s\"",
 211              current_routing->name);*/
 212   current_routing->parseASroute(ASroute);
 213 }
 214
 215 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace)
 216 {
 217   tmgr_trace_t tmgr_trace;
 218   if (!trace->file || strcmp(trace->file, "") != 0) {
 219     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 220   } else if (strcmp(trace->pc_data, "") == 0) {
 221     tmgr_trace = NULL;
 222   } else {
 223     tmgr_trace =
 224           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 225                                      trace->periodicity);
 226   }
 227   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 228 }
 229
 230 void sg_platf_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 231 {
 232   xbt_assert(xbt_dict_get_or_null
 233               (traces_set_list, trace_connect->trace),
 234               "Cannot connect trace %s to %s: trace unknown",
 235               trace_connect->trace,
 236               trace_connect->element);
 237
 238   switch (trace_connect->kind) {
 239   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 240     xbt_dict_set(trace_connect_list_host_avail,
 241         trace_connect->trace,
 242         xbt_strdup(trace_connect->element), NULL);
 243     break;
 244   case SURF_TRACE_CONNECT_KIND_POWER:
 245     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 246         xbt_strdup(trace_connect->element), NULL);
 247     break;
 248   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 249     xbt_dict_set(trace_connect_list_link_avail,
 250         trace_connect->trace,
 251         xbt_strdup(trace_connect->element), NULL);
 252     break;
 253   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 254     xbt_dict_set(trace_connect_list_bandwidth,
 255         trace_connect->trace,
 256         xbt_strdup(trace_connect->element), NULL);
 257     break;
 258   case SURF_TRACE_CONNECT_KIND_LATENCY:
 259     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 260         xbt_strdup(trace_connect->element), NULL);
 261     break;
 262   default:
 263         surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 264         trace_connect->trace, trace_connect->element);
 265     break;
 266   }
 267 }
 268
 269 /**
 270  * \brief Make a new routing component to the platform
 271  *
 272  * Add a new autonomous system to the platform. Any elements (such as host,
 273  * router or sub-AS) added after this call and before the corresponding call
 274  * to sg_platf_new_AS_close() will be added to this AS.
 275  *
 276  * Once this function was called, the configuration concerning the used
 277  * models cannot be changed anymore.
 278  *
 279  * @param AS_id name of this autonomous system. Must be unique in the platform
 280  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 281  */
 282 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 283 {
 284   XBT_DEBUG("routing_AS_begin");
 285   routing_model_description_t model = NULL;
 286
 287   xbt_assert(!xbt_lib_get_or_null
 288              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 289              "The AS \"%s\" already exists", AS->id);
 290
 291   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 292                             * controlling the level of configuration to prevent
 293                             * any further config */
 294
 295   /* search the routing model */
 296   switch(AS->routing){
 297     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
 298     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 299     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 300     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 301     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 302     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 303     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 304     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 305     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 306     default: xbt_die("Not a valid model!!!");
 307     break;
 308   }
 309
 310   /* make a new routing component */
 311   simgrid::surf::As *new_as = model->create();
 312
 313   new_as->p_modelDesc = model;
 314   new_as->p_hierarchy = SURF_ROUTING_NULL;
 315   new_as->p_name = xbt_strdup(AS->id);
 316
 317   simgrid::surf::NetCard *info =
 318     new simgrid::surf::NetCardImpl(xbt_strdup(new_as->p_name),
 319                                             -1,
 320                                             SURF_NETWORK_ELEMENT_AS,
 321                                             current_routing);
 322   if (current_routing == NULL && routing_platf->p_root == NULL) {
 323
 324     /* it is the first one */
 325     new_as->p_routingFather = NULL;
 326     routing_platf->p_root = new_as;
 327     info->setId(-1);
 328   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 329
 330     xbt_assert(!xbt_dict_get_or_null
 331                (current_routing->p_routingSons, AS->id),
 332                "The AS \"%s\" already exists", AS->id);
 333     /* it is a part of the tree */
 334     new_as->p_routingFather = current_routing;
 335     /* set the father behavior */
 336     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 337       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 338     /* add to the sons dictionary */
 339     xbt_dict_set(current_routing->p_routingSons, AS->id,
 340                  (void *) new_as, NULL);
 341     /* add to the father element list */
 342     info->setId(current_routing->parseAS(info));
 343   } else {
 344     THROWF(arg_error, 0, "All defined components must belong to a AS");
 345   }
 346
 347   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 348               (void *) info);
 349   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 350
 351   /* set the new current component of the tree */
 352   current_routing = new_as;
 353   current_routing->p_netElem = info;
 354
 355   simgrid::surf::routingEdgeCreatedCallbacks(info);
 356   simgrid::surf::asCreatedCallbacks(new_as);
 357 }
 358
 359 /**
 360  * \brief Specify that the current description of AS is finished
 361  *
 362  * Once you've declared all the content of your AS, you have to close
 363  * it with this call. Your AS is not usable until you call this function.
 364  *
 365  * @fixme: this call is not as robust as wanted: bad things WILL happen
 366  * if you call it twice for the same AS, or if you forget calling it, or
 367  * even if you add stuff to a closed AS
 368  *
 369  */
 370 void routing_AS_end()
 371 {
 372
 373   if (current_routing == NULL) {
 374     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 375   } else {
 376     if (current_routing->p_modelDesc->end)
 377       current_routing->p_modelDesc->end(current_routing);
 378     current_routing = current_routing->p_routingFather;
 379   }
 380 }
 381
 382 /* Aux Business methods */
 383
 384 /**
 385  * \brief Get the AS father and the first elements of the chain
 386  *
 387  * \param src the source host name
 388  * \param dst the destination host name
 389  *
 390  * Get the common father of the to processing units, and the first different
 391  * father in the chain
 392  */
 393 static void elements_father(sg_netcard_t src, sg_netcard_t dst,
 394                             AS_t * res_father,
 395                             AS_t * res_src,
 396                             AS_t * res_dst)
 397 {
 398   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 399 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 400   simgrid::surf::As *src_as, *dst_as;
 401   simgrid::surf::As *path_src[ELEMENTS_FATHER_MAXDEPTH];
 402   simgrid::surf::As *path_dst[ELEMENTS_FATHER_MAXDEPTH];
 403   int index_src = 0;
 404   int index_dst = 0;
 405   simgrid::surf::As *current;
 406   simgrid::surf::As *current_src;
 407   simgrid::surf::As *current_dst;
 408   simgrid::surf::As *father;
 409
 410   /* (1) find the as where the src and dst are located */
 411   sg_netcard_t src_data = src;
 412   sg_netcard_t dst_data = dst;
 413   src_as = src_data->getRcComponent();
 414   dst_as = dst_data->getRcComponent();
 415 #ifndef NDEBUG
 416   char* src_name = src_data->getName();
 417   char* dst_name = dst_data->getName();
 418 #endif
 419
 420   xbt_assert(src_as && dst_as,
 421              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 422
 423   /* (2) find the path to the root routing component */
 424   for (current = src_as; current != NULL; current = current->p_routingFather) {
 425     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 426       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 427     path_src[index_src++] = current;
 428   }
 429   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 430     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 431       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 432     path_dst[index_dst++] = current;
 433   }
 434
 435   /* (3) find the common father */
 436   do {
 437     current_src = path_src[--index_src];
 438     current_dst = path_dst[--index_dst];
 439   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 440
 441   /* (4) they are not in the same routing component, make the path */
 442   if (current_src == current_dst)
 443     father = current_src;
 444   else
 445     father = path_src[index_src + 1];
 446
 447   /* (5) result generation */
 448   *res_father = father;         /* first the common father of src and dst */
 449   *res_src = current_src;       /* second the first different father of src */
 450   *res_dst = current_dst;       /* three  the first different father of dst */
 451
 452 #undef ELEMENTS_FATHER_MAXDEPTH
 453 }
 454
 455 /* Global Business methods */
 456
 457 /**
 458  * \brief Recursive function for get_route_latency
 459  *
 460  * \param src the source host name
 461  * \param dst the destination host name
 462  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 463  * \param *latency the latency, if needed
 464  *
 465  * This function is called by "get_route" and "get_latency". It allows to walk
 466  * recursively through the ASes tree.
 467  */
 468 static void _get_route_and_latency(
 469   simgrid::surf::NetCard *src, simgrid::surf::NetCard *dst,
 470   xbt_dynar_t * links, double *latency)
 471 {
 472   s_sg_platf_route_cbarg_t route = SG_PLATF_ROUTE_INITIALIZER;
 473   memset(&route,0,sizeof(route));
 474
 475   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 476   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 477
 478   /* Find how src and dst are interconnected */
 479   simgrid::surf::As *common_father, *src_father, *dst_father;
 480   elements_father(src, dst, &common_father, &src_father, &dst_father);
 481   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 482       common_father->p_name, src_father->p_name, dst_father->p_name);
 483
 484   /* Check whether a direct bypass is defined */
 485   sg_platf_route_cbarg_t e_route_bypass = NULL;
 486   //FIXME:REMOVE:if (common_father->get_bypass_route)
 487
 488   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 489
 490   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 491   if (e_route_bypass) {
 492     xbt_dynar_merge(links, &e_route_bypass->link_list);
 493     generic_free_route(e_route_bypass);
 494     return;
 495   }
 496
 497   /* If src and dst are in the same AS, life is good */
 498   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 499     route.link_list = *links;
 500     common_father->getRouteAndLatency(src, dst, &route, latency);
 501     // if vivaldi latency+=vivaldi(src,dst)
 502     return;
 503   }
 504
 505   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 506
 507   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 508   // Find the net_card corresponding to father
 509   simgrid::surf::NetCard *src_father_net_elm = src_father->p_netElem;
 510   simgrid::surf::NetCard *dst_father_net_elm = dst_father->p_netElem;
 511
 512   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 513                                     &route, latency);
 514
 515   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 516       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 517
 518   sg_netcard_t src_gateway_net_elm = route.gw_src;
 519   sg_netcard_t dst_gateway_net_elm = route.gw_dst;
 520
 521   /* If source gateway is not our source, we have to recursively find our way up to this point */
 522   if (src != src_gateway_net_elm)
 523     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 524   xbt_dynar_merge(links, &route.link_list);
 525
 526   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 527   if (dst_gateway_net_elm != dst)
 528     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 529
 530   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 531 }
 532
 533 AS_t surf_platf_get_root(routing_platf_t platf){
 534   return platf->p_root;
 535 }
 536
 537 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_netcard_t netcard){
 538   return netcard->getRcType();
 539 }
 540
 541 namespace simgrid {
 542 namespace surf {
 543
 544 /**
 545  * \brief Find a route between hosts
 546  *
 547  * \param src the network_element_t for src host
 548  * \param dst the network_element_t for dst host
 549  * \param route where to store the list of links.
 550  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 551  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 552  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 553  * \pre route!=NULL
 554  *
 555  * walk through the routing components tree and find a route between hosts
 556  * by calling each "get_route" function in each routing component.
 557  */
 558 void RoutingPlatf::getRouteAndLatency(
 559   simgrid::surf::NetCard *src, simgrid::surf::NetCard *dst,
 560   xbt_dynar_t* route, double *latency)
 561 {
 562   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 563   if (!*route) {
 564     xbt_dynar_reset(routing_platf->p_lastRoute);
 565     *route = routing_platf->p_lastRoute;
 566   }
 567
 568   _get_route_and_latency(src, dst, route, latency);
 569
 570   xbt_assert(!latency || *latency >= 0.0,
 571              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 572 }
 573
 574 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 575   return recursiveGetOneLinkRoutes(p_root);
 576 }
 577
 578 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(As *rc)
 579 {
 580   xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
 581
 582   //adding my one link routes
 583   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 584   if (onelink_mine)
 585     xbt_dynar_merge(&ret,&onelink_mine);
 586
 587   //recursing
 588   char *key;
 589   xbt_dict_cursor_t cursor = NULL;
 590   AS_t rc_child;
 591   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 592     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 593     if (onelink_child)
 594       xbt_dynar_merge(&ret,&onelink_child);
 595   }
 596   return ret;
 597 }
 598
 599 }
 600 }
 601
 602 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 603 {
 604   simgrid::surf::NetCard *rc = sg_netcard_by_name_or_null(name);
 605   if (rc)
 606     return rc->getRcType();
 607
 608   return SURF_NETWORK_ELEMENT_NULL;
 609 }
 610
 611 /**
 612  * \brief Generic method: create the global routing schema
 613  *
 614  * Make a global routing structure and set all the parsing functions.
 615  */
 616 void routing_model_create( void *loopback)
 617 {
 618   /* config the uniq global routing */
 619   routing_platf = new simgrid::surf::RoutingPlatf();
 620   routing_platf->p_root = NULL;
 621   routing_platf->p_loopback = loopback;
 622   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 623   /* no current routing at moment */
 624   current_routing = NULL;
 625 }
 626
 627
 628 /* ************************************************** */
 629 /* ********** PATERN FOR NEW ROUTING **************** */
 630
 631 /* The minimal configuration of a new routing model need the next functions,
 632  * also you need to set at the start of the file, the new model in the model
 633  * list. Remember keep the null ending of the list.
 634  */
 635 /*** Routing model structure ***/
 636 // typedef struct {
 637 //   s_routing_component_t generic_routing;
 638 //   /* things that your routing model need */
 639 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 640
 641 /*** Parse routing model functions ***/
 642 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 643 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 644 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 645 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 646 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 647
 648 /*** Business methods ***/
 649 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 650 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 651 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 652
 653 /*** Creation routing model functions ***/
 654 // static void* model_NEW_create(void) {
 655 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 656 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 657 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 658 //   new_component->generic_routing.set_route = model_NEW_set_route;
 659 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 660 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 661 //   new_component->generic_routing.get_route = NEW_get_route;
 662 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 663 //   new_component->generic_routing.finalize = NEW_finalize;
 664 //   /* initialization of internal structures */
 665 //   return new_component;
 666 // } /* mandatory */
 667 // static void  model_NEW_load(void) {}   /* mandatory */
 668 // static void  model_NEW_unload(void) {} /* mandatory */
 669 // static void  model_NEW_end(void) {}    /* mandatory */
 670
 671 /* ************************************************************************** */
 672 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 673
 674 void routing_cluster_add_backbone(void* bb) {
 675   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 676         "You have to be in model Cluster to use tag backbone!");
 677   xbt_assert(!static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone, "The backbone link is already defined!");
 678   static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone =
 679     static_cast<simgrid::surf::Link*>(bb);
 680   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 681 }
 682
 683 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 684 {
 685   int start, end, i;
 686   char *groups , *host_id , *link_id = NULL;
 687   unsigned int iter;
 688   xbt_dynar_t radical_elements;
 689   xbt_dynar_t radical_ends;
 690
 691   //Make all hosts
 692   radical_elements = xbt_str_split(cabinet->radical, ",");
 693   xbt_dynar_foreach(radical_elements, iter, groups) {
 694
 695     radical_ends = xbt_str_split(groups, "-");
 696     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 697
 698     switch (xbt_dynar_length(radical_ends)) {
 699     case 1:
 700       end = start;
 701       break;
 702     case 2:
 703       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 704       break;
 705     default:
 706       surf_parse_error("Malformed radical");
 707       break;
 708     }
 709     s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 710     memset(&host, 0, sizeof(host));
 711     host.initial_state = SURF_RESOURCE_ON;
 712     host.pstate        = 0;
 713     host.speed_scale   = 1.0;
 714     host.core_amount   = 1;
 715
 716     s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 717     memset(&link, 0, sizeof(link));
 718     link.state     = SURF_RESOURCE_ON;
 719     link.policy    = SURF_LINK_FULLDUPLEX;
 720     link.latency   = cabinet->lat;
 721     link.bandwidth = cabinet->bw;
 722
 723     s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
 724     memset(&host_link, 0, sizeof(host_link));
 725
 726     for (i = start; i <= end; i++) {
 727       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 728       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 729       host.id                      = host_id;
 730       link.id                      = link_id;
 731       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 732       xbt_dynar_push(host.speed_peak,&cabinet->speed);
 733       sg_platf_new_host(&host);
 734       xbt_dynar_free(&host.speed_peak);
 735       sg_platf_new_link(&link);
 736
 737       char* link_up       = bprintf("%s_UP",link_id);
 738       char* link_down     = bprintf("%s_DOWN",link_id);
 739       host_link.id        = host_id;
 740       host_link.link_up   = link_up;
 741       host_link.link_down = link_down;
 742       sg_platf_new_netcard(&host_link);
 743
 744       free(host_id);
 745       free(link_id);
 746       free(link_up);
 747       free(link_down);
 748     }
 749
 750     xbt_dynar_free(&radical_ends);
 751   }
 752   xbt_dynar_free(&radical_elements);
 753 }
 754
 755 void routing_new_cluster(sg_platf_cluster_cbarg_t cluster)
 756 {
 757   using simgrid::surf::AsCluster;
 758   using simgrid::surf::AsClusterTorus;
 759   using simgrid::surf::AsClusterFatTree;
 760
 761   char *host_id, *groups, *link_id = NULL;
 762   xbt_dict_t patterns = NULL;
 763   int rankId=0;
 764
 765   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 766   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 767
 768   unsigned int iter;
 769   int start, end, i;
 770   xbt_dynar_t radical_elements;
 771   xbt_dynar_t radical_ends;
 772
 773   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 774       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 775     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 776     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 777     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 778     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 779   }
 780
 781   /* parse the topology attribute. If we are not in a flat cluster,
 782    * switch to the right mode and initialize the routing with
 783    * the parameters in topo_parameters attribute
 784    */
 785   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 786   AS.id = cluster->id;
 787
 788   if(cluster->topology == SURF_CLUSTER_TORUS){
 789     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 790     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 791     sg_platf_new_AS_begin(&AS);
 792     ((AsClusterTorus*)current_routing)->parse_specific_arguments(cluster);
 793   }
 794   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 795     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 796     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 797     sg_platf_new_AS_begin(&AS);
 798     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 799   }
 800
 801   else{
 802     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 803     AS.routing = A_surfxml_AS_routing_Cluster;
 804     sg_platf_new_AS_begin(&AS);
 805   }
 806
 807   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 808       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 809       ((AsCluster*)current_routing)->p_has_loopback=1;
 810   }
 811
 812   if(cluster->limiter_link!=0){
 813       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 814       ((AsCluster*)current_routing)->p_has_limiter=1;
 815   }
 816
 817
 818
 819   current_routing->p_linkUpDownList
 820             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 821
 822   //Make all hosts
 823   radical_elements = xbt_str_split(cluster->radical, ",");
 824   xbt_dynar_foreach(radical_elements, iter, groups) {
 825
 826     radical_ends = xbt_str_split(groups, "-");
 827     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 828
 829     switch (xbt_dynar_length(radical_ends)) {
 830     case 1:
 831       end = start;
 832       break;
 833     case 2:
 834       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 835       break;
 836     default:
 837       surf_parse_error("Malformed radical");
 838       break;
 839     }
 840     for (i = start; i <= end; i++) {
 841       host_id =
 842           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 843       link_id = bprintf("%s_link_%d", cluster->id, i);
 844
 845       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 846
 847       memset(&host, 0, sizeof(host));
 848       host.id = host_id;
 849       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 850           xbt_dict_cursor_t cursor=NULL;
 851           char *key,*data;
 852           host.properties = xbt_dict_new();
 853
 854           xbt_dict_foreach(cluster->properties,cursor,key,data) {
 855                   xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 856           }
 857       }
 858       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 859         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 860         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 861         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 862         host.speed_trace = tmgr_trace_new_from_file(avail_file);
 863         xbt_free(avail_file);
 864       } else {
 865         XBT_DEBUG("\tavailability_file=\"\"");
 866       }
 867
 868       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 869         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 870         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 871         host.state_trace = tmgr_trace_new_from_file(avail_file);
 872         xbt_free(avail_file);
 873       } else {
 874         XBT_DEBUG("\tstate_file=\"\"");
 875       }
 876
 877       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 878       xbt_dynar_push(host.speed_peak,&cluster->speed);
 879       host.pstate = 0;
 880
 881       //host.power_peak = cluster->power;
 882       host.speed_scale = 1.0;
 883       host.core_amount = cluster->core_amount;
 884       host.initial_state = SURF_RESOURCE_ON;
 885       host.coord = "";
 886       sg_platf_new_host(&host);
 887       xbt_dynar_free(&host.speed_peak);
 888       XBT_DEBUG("</host>");
 889
 890       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 891                 cluster->bw, cluster->lat);
 892
 893
 894       s_surf_parsing_link_up_down_t info_lim, info_loop;
 895       // All links are saved in a matrix;
 896       // every row describes a single node; every node
 897       // may have multiple links.
 898       // the first column may store a link from x to x if p_has_loopback is set
 899       // the second column may store a limiter link if p_has_limiter is set
 900       // other columns are to store one or more link for the node
 901
 902       //add a loopback link
 903       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 904         char *tmp_link = bprintf("%s_loopback", link_id);
 905         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 906                 cluster->limiter_link);
 907
 908
 909         memset(&link, 0, sizeof(link));
 910         link.id        = tmp_link;
 911         link.bandwidth = cluster->loopback_bw;
 912         link.latency   = cluster->loopback_lat;
 913         link.state     = SURF_RESOURCE_ON;
 914         link.policy    = SURF_LINK_FATPIPE;
 915         sg_platf_new_link(&link);
 916         info_loop.link_up   = Link::byName(tmp_link);
 917         info_loop.link_down = info_loop.link_up;
 918         free(tmp_link);
 919         xbt_dynar_set(current_routing->p_linkUpDownList,
 920           rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node, &info_loop);
 921       }
 922
 923       //add a limiter link (shared link to account for maximal bandwidth of the node)
 924       if(cluster->limiter_link!=0){
 925         char *tmp_link = bprintf("%s_limiter", link_id);
 926         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 927                 cluster->limiter_link);
 928
 929
 930         memset(&link, 0, sizeof(link));
 931         link.id = tmp_link;
 932         link.bandwidth = cluster->limiter_link;
 933         link.latency = 0;
 934         link.state = SURF_RESOURCE_ON;
 935         link.policy = SURF_LINK_SHARED;
 936         sg_platf_new_link(&link);
 937         info_lim.link_up = Link::byName(tmp_link);
 938         info_lim.link_down = info_lim.link_up;
 939         free(tmp_link);
 940         auto as_cluster = static_cast<AsCluster*>(current_routing);
 941         xbt_dynar_set(current_routing->p_linkUpDownList,
 942             rankId*(as_cluster)->p_nb_links_per_node + as_cluster->p_has_loopback ,
 943             &info_lim);
 944
 945       }
 946
 947
 948       //call the cluster function that adds the others links
 949       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 950         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 951       }
 952       else {
 953       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 954                   static_cast<AsCluster*>(current_routing)->p_nb_links_per_node
 955           + static_cast<AsCluster*>(current_routing)->p_has_loopback
 956           + static_cast<AsCluster*>(current_routing)->p_has_limiter );
 957       }
 958       xbt_free(link_id);
 959       xbt_free(host_id);
 960       rankId++;
 961     }
 962
 963     xbt_dynar_free(&radical_ends);
 964   }
 965   xbt_dynar_free(&radical_elements);
 966
 967   // For fat trees, the links must be created once all nodes have been added
 968   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
 969     static_cast<simgrid::surf::AsClusterFatTree*>(current_routing)->create_links();
 970   }
 971   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 972   // and it's very useful to connect clusters together
 973   XBT_DEBUG(" ");
 974   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 975   char *newid = NULL;
 976   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
 977   memset(&router, 0, sizeof(router));
 978   router.id = cluster->router_id;
 979   router.coord = "";
 980   if (!router.id || !strcmp(router.id, ""))
 981     router.id = newid =
 982         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 983                 cluster->suffix);
 984   sg_platf_new_router(&router);
 985   ((AsCluster*)current_routing)->p_router = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 986   free(newid);
 987
 988   //Make the backbone
 989   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 990     char *link_backbone = bprintf("%s_backbone", cluster->id);
 991     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 992               cluster->bb_bw, cluster->bb_lat);
 993
 994     memset(&link, 0, sizeof(link));
 995     link.id        = link_backbone;
 996     link.bandwidth = cluster->bb_bw;
 997     link.latency   = cluster->bb_lat;
 998     link.state     = SURF_RESOURCE_ON;
 999     link.policy    = cluster->bb_sharing_policy;
1000
1001     sg_platf_new_link(&link);
1002
1003     routing_cluster_add_backbone(Link::byName(link_backbone));
1004
1005     free(link_backbone);
1006   }
1007
1008   XBT_DEBUG("</AS>");
1009   sg_platf_new_AS_end();
1010   XBT_DEBUG(" ");
1011   xbt_dict_free(&patterns); // no op if it were never set
1012 }
1013
1014 static void routing_parse_postparse(void) {
1015   xbt_dict_free(&random_value);
1016 }
1017
1018 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
1019 {
1020   using simgrid::surf::NetCard;
1021   using simgrid::surf::AsCluster;
1022
1023   char *host_id = NULL;
1024   char *link_id = NULL;
1025   char *router_id = NULL;
1026
1027   XBT_DEBUG(" ");
1028   host_id = HOST_PEER(peer->id);
1029   link_id = LINK_PEER(peer->id);
1030   router_id = ROUTER_PEER(peer->id);
1031
1032   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1033   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1034   AS.id                    = peer->id;
1035   AS.routing               = A_surfxml_AS_routing_Cluster;
1036   sg_platf_new_AS_begin(&AS);
1037
1038   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1039
1040   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
1041   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
1042   memset(&host, 0, sizeof(host));
1043   host.initial_state = SURF_RESOURCE_ON;
1044   host.id = host_id;
1045
1046   host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
1047   xbt_dynar_push(host.speed_peak,&peer->speed);
1048   host.pstate = 0;
1049   //host.power_peak = peer->power;
1050   host.speed_scale = 1.0;
1051   host.speed_trace = peer->availability_trace;
1052   host.state_trace = peer->state_trace;
1053   host.core_amount = 1;
1054   sg_platf_new_host(&host);
1055   xbt_dynar_free(&host.speed_peak);
1056
1057   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
1058   memset(&link, 0, sizeof(link));
1059   link.state   = SURF_RESOURCE_ON;
1060   link.policy  = SURF_LINK_SHARED;
1061   link.latency = peer->lat;
1062
1063   char* link_up = bprintf("%s_UP",link_id);
1064   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1065             peer->bw_out, peer->lat);
1066   link.id = link_up;
1067   link.bandwidth = peer->bw_out;
1068   sg_platf_new_link(&link);
1069
1070   char* link_down = bprintf("%s_DOWN",link_id);
1071   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1072             peer->bw_in, peer->lat);
1073   link.id = link_down;
1074   link.bandwidth = peer->bw_in;
1075   sg_platf_new_link(&link);
1076
1077   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1078   s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
1079   memset(&host_link, 0, sizeof(host_link));
1080   host_link.id        = host_id;
1081   host_link.link_up   = link_up;
1082   host_link.link_down = link_down;
1083   sg_platf_new_netcard(&host_link);
1084
1085   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1086   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
1087   memset(&router, 0, sizeof(router));
1088   router.id = router_id;
1089   router.coord = peer->coord;
1090   sg_platf_new_router(&router);
1091   static_cast<AsCluster*>(current_routing)->p_router = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1092
1093   XBT_DEBUG("</AS>");
1094   sg_platf_new_AS_end();
1095   XBT_DEBUG(" ");
1096
1097   //xbt_dynar_free(&tab_elements_num);
1098   free(router_id);
1099   free(host_id);
1100   free(link_id);
1101   free(link_up);
1102   free(link_down);
1103 }
1104
1105 // static void routing_parse_Srandom(void)
1106 // {
1107 //   double mean, std, min, max, seed;
1108 //   char *random_id = A_surfxml_random_id;
1109 //   char *random_radical = A_surfxml_random_radical;
1110 //   char *rd_name = NULL;
1111 //   char *rd_value;
1112 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1113 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1114 //   min = surf_parse_get_double(A_surfxml_random_min);
1115 //   max = surf_parse_get_double(A_surfxml_random_max);
1116 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1117
1118 //   double res = 0;
1119 //   int i = 0;
1120 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1121 //   char *tmpbuf;
1122
1123 //   xbt_dynar_t radical_elements;
1124 //   unsigned int iter;
1125 //   char *groups;
1126 //   int start, end;
1127 //   xbt_dynar_t radical_ends;
1128
1129 //   switch (A_surfxml_random_generator) {
1130 //   case AU_surfxml_random_generator:
1131 //   case A_surfxml_random_generator_NONE:
1132 //     random->generator = NONE;
1133 //     break;
1134 //   case A_surfxml_random_generator_DRAND48:
1135 //     random->generator = DRAND48;
1136 //     break;
1137 //   case A_surfxml_random_generator_RAND:
1138 //     random->generator = RAND;
1139 //     break;
1140 //   case A_surfxml_random_generator_RNGSTREAM:
1141 //     random->generator = RNGSTREAM;
1142 //     break;
1143 //   default:
1144 //     surf_parse_error("Invalid random generator");
1145 //     break;
1146 //   }
1147 //   random->seed = seed;
1148 //   random->min = min;
1149 //   random->max = max;
1150
1151 //   /* Check user stupidities */
1152 //   if (max < min)
1153 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1154 //   if (mean < min)
1155 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1156 //   if (mean > max)
1157 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1158
1159 //   /* normalize the mean and standard deviation before storing */
1160 //   random->mean = (mean - min) / (max - min);
1161 //   random->std = std / (max - min);
1162
1163 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1164 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1165 //            random->mean, random->std);
1166
1167 //   XBT_DEBUG
1168 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1169 //        random_id, random->min, random->max, random->mean, random->std,
1170 //        (int)random->generator, random->seed, random_radical);
1171
1172 //   if (!random_value)
1173 //     random_value = xbt_dict_new_homogeneous(free);
1174
1175 //   if (!strcmp(random_radical, "")) {
1176 //     res = random_generate(random);
1177 //     rd_value = bprintf("%f", res);
1178 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1179 //   } else {
1180 //     radical_elements = xbt_str_split(random_radical, ",");
1181 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1182 //       radical_ends = xbt_str_split(groups, "-");
1183 //       switch (xbt_dynar_length(radical_ends)) {
1184 //       case 1:
1185 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1186 //                    "Custom Random '%s' already exists !", random_id);
1187 //         res = random_generate(random);
1188 //         tmpbuf =
1189 //             bprintf("%s%d", random_id,
1190 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1191 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1192 //         xbt_free(tmpbuf);
1193 //         break;
1194
1195 //       case 2:
1196 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1197 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1198 //         for (i = start; i <= end; i++) {
1199 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1200 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1201 //                                                                     random_id,
1202 //                                                                     i));
1203 //           res = random_generate(random);
1204 //           tmpbuf = bprintf("%s%d", random_id, i);
1205 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1206 //           xbt_free(tmpbuf);
1207 //         }
1208 //         break;
1209 //       default:
1210 //         XBT_CRITICAL("Malformed radical");
1211 //         break;
1212 //       }
1213 //       res = random_generate(random);
1214 //       rd_name = bprintf("%s_router", random_id);
1215 //       rd_value = bprintf("%f", res);
1216 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1217
1218 //       xbt_dynar_free(&radical_ends);
1219 //     }
1220 //     free(rd_name);
1221 //     xbt_dynar_free(&radical_elements);
1222 //   }
1223 // }
1224
1225 static void check_disk_attachment()
1226 {
1227   xbt_lib_cursor_t cursor;
1228   char *key;
1229   void **data;
1230   simgrid::surf::NetCard *host_elm;
1231   xbt_lib_foreach(storage_lib, cursor, key, data) {
1232     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1233           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));
1234           host_elm = sg_netcard_by_name_or_null(storage->p_attach);
1235           if(!host_elm)
1236                   surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1237     }
1238   }
1239 }
1240
1241 void routing_register_callbacks()
1242 {
1243   sg_platf_postparse_add_cb(routing_parse_postparse);
1244   sg_platf_postparse_add_cb(check_disk_attachment);
1245
1246   instr_routing_define_callbacks();
1247 }
1248
1249 /**
1250  * \brief Recursive function for finalize
1251  *
1252  * \param rc the source host name
1253  *
1254  * This fuction is call by "finalize". It allow to finalize the
1255  * AS or routing components. It delete all the structures.
1256  */
1257 static void finalize_rec(simgrid::surf::As *as) {
1258   xbt_dict_cursor_t cursor = NULL;
1259   char *key;
1260   AS_t elem;
1261
1262   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1263     finalize_rec(elem);
1264   }
1265
1266   delete as;;
1267 }
1268
1269 /** \brief Frees all memory allocated by the routing module */
1270 void routing_exit(void) {
1271   delete routing_platf;
1272 }
1273
1274 namespace simgrid {
1275 namespace surf {
1276
1277 RoutingPlatf::~RoutingPlatf()
1278 {
1279         xbt_dynar_free(&p_lastRoute);
1280         finalize_rec(p_root);
1281 }
1282
1283 }
1284 }
1285
1286 AS_t surf_AS_get_routing_root() {
1287   return routing_platf->p_root;
1288 }
1289
1290 const char *surf_AS_get_name(simgrid::surf::As *as) {
1291   return as->p_name;
1292 }
1293
1294 static simgrid::surf::As *surf_AS_recursive_get_by_name(
1295   simgrid::surf::As *current, const char * name)
1296 {
1297   xbt_dict_cursor_t cursor = NULL;
1298   char *key;
1299   AS_t elem;
1300   simgrid::surf::As *tmp = NULL;
1301
1302   if(!strcmp(current->p_name, name))
1303     return current;
1304
1305   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1306     tmp = surf_AS_recursive_get_by_name(elem, name);
1307     if(tmp != NULL ) {
1308         break;
1309     }
1310   }
1311   return tmp;
1312 }
1313
1314 simgrid::surf::As *surf_AS_get_by_name(const char * name)
1315 {
1316   simgrid::surf::As *as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1317   if(as == NULL)
1318     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1319   return as;
1320 }
1321
1322 xbt_dict_t surf_AS_get_routing_sons(simgrid::surf::As *as)
1323 {
1324   return as->p_routingSons;
1325 }
1326
1327 const char *surf_AS_get_model(simgrid::surf::As *as)
1328 {
1329   return as->p_modelDesc->name;
1330 }
1331
1332 xbt_dynar_t surf_AS_get_hosts(simgrid::surf::As *as)
1333 {
1334   xbt_dynar_t elms = as->p_indexNetworkElm;
1335   int count = xbt_dynar_length(elms);
1336   xbt_dynar_t res =  xbt_dynar_new(sizeof(sg_host_t), NULL);
1337   for (int index = 0; index < count; index++) {
1338      sg_netcard_t relm =
1339       xbt_dynar_get_as(elms, index, simgrid::surf::NetCard*);
1340      sg_host_t delm = simgrid::Host::by_name_or_null(relm->getName());
1341      if (delm!=NULL) {
1342        xbt_dynar_push(res, &delm);
1343      }
1344   }
1345   return res;
1346 }
1347
1348 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1349   as->getGraph(graph, nodes, edges);
1350 }