src/surf/surf_routing.cpp

   1 /* Copyright (c) 2009, 2010, 2011, 2013. 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
  10 #include "simgrid/platf_interface.h"    // platform creation API internal interface
  11 #include "simgrid/sg_config.h"
  12
  13 #include "surf/surfxml_parse_values.h"
  14
  15 /**
  16  * @ingroup SURF_build_api
  17  * @brief A library containing all known workstations
  18  */
  19 xbt_lib_t host_lib;
  20
  21 int ROUTING_HOST_LEVEL;         //Routing level
  22 int SURF_CPU_LEVEL;             //Surf cpu level
  23 int SURF_WKS_LEVEL;             //Surf workstation level
  24 int SIMIX_HOST_LEVEL;           //Simix host level
  25 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  26 int MSG_HOST_LEVEL;             //Msg host level
  27 int MSG_STORAGE_LEVEL;          //Msg storage level
  28 int SD_HOST_LEVEL;              //Simdag host level
  29 int SD_STORAGE_LEVEL;           //Simdag storage level
  30 int COORD_HOST_LEVEL=0;         //Coordinates level
  31 int NS3_HOST_LEVEL;             //host node for ns3
  32
  33 /**
  34  * @ingroup SURF_build_api
  35  * @brief A library containing all known links
  36  */
  37 xbt_lib_t link_lib;
  38 int SD_LINK_LEVEL;              //Simdag level
  39 int SURF_LINK_LEVEL;            //Surf level
  40 int NS3_LINK_LEVEL;             //link for ns3
  41
  42 xbt_lib_t as_router_lib;
  43 int ROUTING_ASR_LEVEL;          //Routing level
  44 int COORD_ASR_LEVEL;            //Coordinates level
  45 int NS3_ASR_LEVEL;              //host node for ns3
  46 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  47
  48 static xbt_dict_t random_value = NULL;
  49
  50
  51 /** @brief Retrieve a routing edge from its name
  52  *
  53  * Routing edges are either CPU/workstation and routers, whatever
  54  */
  55 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
  56   RoutingEdgePtr net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
  57   if (!net_elm)
  58         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  59   return net_elm;
  60 }
  61
  62 /* Global vars */
  63 RoutingPlatfPtr routing_platf = NULL;
  64 AsPtr current_routing = NULL;
  65
  66 /* global parse functions */
  67 extern xbt_dynar_t mount_list;
  68
  69 extern "C" {
  70 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  71 }
  72
  73 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  74 static void routing_parse_Srandom(void);        /* random bypass */
  75
  76 static void routing_parse_postparse(void);
  77
  78 /* this lines are only for replace use like index in the model table */
  79 typedef enum {
  80   SURF_MODEL_FULL = 0,
  81   SURF_MODEL_FLOYD,
  82   SURF_MODEL_DIJKSTRA,
  83   SURF_MODEL_DIJKSTRACACHE,
  84   SURF_MODEL_NONE,
  85   SURF_MODEL_VIVALDI,
  86   SURF_MODEL_CLUSTER
  87 } e_routing_types;
  88
  89 struct s_model_type routing_models[] = {
  90   {"Full",
  91    "Full routing data (fast, large memory requirements, fully expressive)",
  92    model_full_create, model_full_end},
  93   {"Floyd",
  94    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  95    model_floyd_create, model_floyd_end},
  96   {"Dijkstra",
  97    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  98    model_dijkstra_create, model_dijkstra_both_end},
  99   {"DijkstraCache",
 100    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
 101    model_dijkstracache_create, model_dijkstra_both_end},
 102   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
 103    model_none_create,  NULL},
 104   {"Vivaldi", "Vivaldi routing",
 105    model_vivaldi_create, NULL},
 106   {"Cluster", "Cluster routing",
 107    model_cluster_create, NULL},
 108   {NULL, NULL, NULL, NULL}
 109 };
 110
 111 /**
 112  * \brief Add a "host_link" to the network element list
 113  */
 114 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
 115 {
 116   RoutingEdgePtr info = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL));
 117   xbt_assert(info, "Host '%s' not found!", host->id);
 118   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 119       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 120       "You have to be in model Cluster to use tag host_link!");
 121
 122   s_surf_parsing_link_up_down_t link_up_down;
 123   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
 124   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
 125   link_up_down.limiter_link = NULL;
 126   link_up_down.loopback_link = NULL;
 127
 128   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 129   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 130
 131   if(!current_routing->p_linkUpDownList)
 132     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 133
 134   // If dynar is is greater than edge id and if the host_link is already defined
 135   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->m_id &&
 136       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->m_id, void*))
 137     xbt_die("Host_link for '%s' is already defined!",host->id);
 138
 139   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->p_name, info->m_id);
 140   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->m_id, s_surf_parsing_link_up_down_t, link_up_down);
 141 }
 142
 143 /**
 144  * \brief Add a "host" to the network element list
 145  */
 146 static void parse_S_host(sg_platf_host_cbarg_t host)
 147 {
 148   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 149     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 150   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
 151              "Reading a host, processing unit \"%s\" already exists", host->id);
 152
 153   RoutingEdgePtr info = new RoutingEdge();
 154   info->p_rcComponent = current_routing;
 155   info->p_rcType = SURF_NETWORK_ELEMENT_HOST;
 156   info->p_name = xbt_strdup(host->id);
 157   info->m_id = current_routing->parsePU(info);
 158   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
 159   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->m_id);
 160
 161   if(mount_list){
 162     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 163     mount_list = NULL;
 164   }
 165
 166   if (host->coord && strcmp(host->coord, "")) {
 167     unsigned int cursor;
 168     char*str;
 169
 170     if (!COORD_HOST_LEVEL)
 171       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 172     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 173     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 174     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 175     xbt_dynar_foreach(ctn_str,cursor, str) {
 176       double val = atof(str);
 177       xbt_dynar_push(ctn,&val);
 178     }
 179     xbt_dynar_shrink(ctn, 0);
 180     xbt_dynar_free(&ctn_str);
 181     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 182     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 183   }
 184 }
 185
 186 /**
 187  * \brief Add a "router" to the network element list
 188  */
 189 static void parse_S_router(sg_platf_router_cbarg_t router)
 190 {
 191   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 192     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 193   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 194              "Reading a router, processing unit \"%s\" already exists",
 195              router->id);
 196
 197   RoutingEdgePtr info = new RoutingEdge();
 198   info->p_rcComponent = current_routing;
 199   info->p_rcType = SURF_NETWORK_ELEMENT_ROUTER;
 200   info->p_name = xbt_strdup(router->id);
 201   info->m_id = current_routing->parsePU(info);
 202   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 203   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->m_id);
 204
 205   if (router->coord && strcmp(router->coord, "")) {
 206     unsigned int cursor;
 207     char*str;
 208
 209     if (!COORD_ASR_LEVEL)
 210       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 211     /* Pre-parse the host coordinates */
 212     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 213     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 214     xbt_dynar_foreach(ctn_str,cursor, str) {
 215       double val = atof(str);
 216       xbt_dynar_push(ctn,&val);
 217     }
 218     xbt_dynar_shrink(ctn, 0);
 219     xbt_dynar_free(&ctn_str);
 220     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 221     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 222   }
 223 }
 224
 225 /**
 226  * \brief Store the route by calling the set_route function of the current routing component
 227  */
 228 static void parse_E_route(sg_platf_route_cbarg_t route)
 229 {
 230   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
 231              "no defined method \"set_route\" in \"%s\"",
 232              current_routing->name);*/
 233
 234   current_routing->parseRoute(route);
 235 }
 236
 237 /**
 238  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 239  */
 240 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 241 {
 242   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
 243              "no defined method \"set_ASroute\" in \"%s\"",
 244              current_routing->name);*/
 245   current_routing->parseASroute(ASroute);
 246 }
 247
 248 /**
 249  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 250  */
 251 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 252 {
 253   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 254              "Bypassing mechanism not implemented by routing '%s'",
 255              current_routing->name);*/
 256
 257   current_routing->parseBypassroute(route);
 258 }
 259
 260 /**
 261  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 262  */
 263 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
 264 {
 265   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 266              "Bypassing mechanism not implemented by routing '%s'",
 267              current_routing->name);*/
 268   current_routing->parseBypassroute(ASroute);
 269 }
 270
 271 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 272 {
 273   tmgr_trace_t tmgr_trace;
 274   if (!trace->file || strcmp(trace->file, "") != 0) {
 275     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 276   } else if (strcmp(trace->pc_data, "") == 0) {
 277     tmgr_trace = NULL;
 278   } else {
 279     tmgr_trace =
 280           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 281                                      trace->periodicity);
 282   }
 283   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 284 }
 285
 286 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 287 {
 288   xbt_assert(xbt_dict_get_or_null
 289               (traces_set_list, trace_connect->trace),
 290               "Cannot connect trace %s to %s: trace unknown",
 291               trace_connect->trace,
 292               trace_connect->element);
 293
 294   switch (trace_connect->kind) {
 295   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 296     xbt_dict_set(trace_connect_list_host_avail,
 297         trace_connect->trace,
 298         xbt_strdup(trace_connect->element), NULL);
 299     break;
 300   case SURF_TRACE_CONNECT_KIND_POWER:
 301     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 302         xbt_strdup(trace_connect->element), NULL);
 303     break;
 304   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 305     xbt_dict_set(trace_connect_list_link_avail,
 306         trace_connect->trace,
 307         xbt_strdup(trace_connect->element), NULL);
 308     break;
 309   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 310     xbt_dict_set(trace_connect_list_bandwidth,
 311         trace_connect->trace,
 312         xbt_strdup(trace_connect->element), NULL);
 313     break;
 314   case SURF_TRACE_CONNECT_KIND_LATENCY:
 315     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 316         xbt_strdup(trace_connect->element), NULL);
 317     break;
 318   default:
 319     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
 320         trace_connect->trace, trace_connect->element);
 321     break;
 322   }
 323 }
 324
 325 /**
 326  * \brief Make a new routing component to the platform
 327  *
 328  * Add a new autonomous system to the platform. Any elements (such as host,
 329  * router or sub-AS) added after this call and before the corresponding call
 330  * to sg_platf_new_AS_close() will be added to this AS.
 331  *
 332  * Once this function was called, the configuration concerning the used
 333  * models cannot be changed anymore.
 334  *
 335  * @param AS_id name of this autonomous system. Must be unique in the platform
 336  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 337  */
 338 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 339 {
 340   XBT_DEBUG("routing_AS_begin");
 341   routing_model_description_t model = NULL;
 342
 343   xbt_assert(!xbt_lib_get_or_null
 344              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 345              "The AS \"%s\" already exists", AS->id);
 346
 347   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 348                             * controlling the level of configuration to prevent
 349                             * any further config */
 350
 351   /* search the routing model */
 352   switch(AS->routing){
 353     case A_surfxml_AS_routing_Cluster:       model = &routing_models[SURF_MODEL_CLUSTER];break;
 354     case A_surfxml_AS_routing_Dijkstra:      model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 355     case A_surfxml_AS_routing_DijkstraCache: model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 356     case A_surfxml_AS_routing_Floyd:         model = &routing_models[SURF_MODEL_FLOYD];break;
 357     case A_surfxml_AS_routing_Full:          model = &routing_models[SURF_MODEL_FULL];break;
 358     case A_surfxml_AS_routing_None:          model = &routing_models[SURF_MODEL_NONE];break;
 359     case A_surfxml_AS_routing_Vivaldi:       model = &routing_models[SURF_MODEL_VIVALDI];break;
 360     default: xbt_die("Not a valid model!!!");
 361     break;
 362   }
 363
 364   /* make a new routing component */
 365   AsPtr new_as = model->create();
 366
 367   new_as->p_modelDesc = model;
 368   new_as->p_hierarchy = SURF_ROUTING_NULL;
 369   new_as->p_name = xbt_strdup(AS->id);
 370
 371   RoutingEdgePtr info = new RoutingEdge();
 372
 373   if (current_routing == NULL && routing_platf->p_root == NULL) {
 374
 375     /* it is the first one */
 376     new_as->p_routingFather = NULL;
 377     routing_platf->p_root = new_as;
 378     info->m_id = -1;
 379   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 380
 381     xbt_assert(!xbt_dict_get_or_null
 382                (current_routing->p_routingSons, AS->id),
 383                "The AS \"%s\" already exists", AS->id);
 384     /* it is a part of the tree */
 385     new_as->p_routingFather = current_routing;
 386     /* set the father behavior */
 387     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 388       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 389     /* add to the sons dictionary */
 390     xbt_dict_set(current_routing->p_routingSons, AS->id,
 391                  (void *) new_as, NULL);
 392     /* add to the father element list */
 393     info->m_id = current_routing->parseAS(info);
 394   } else {
 395     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 396   }
 397
 398   info->p_rcComponent = new_as->p_routingFather;
 399   info->p_rcType = SURF_NETWORK_ELEMENT_AS;
 400   info->p_name = new_as->p_name;
 401
 402   xbt_lib_set(as_router_lib, info->p_name, ROUTING_ASR_LEVEL,
 403               (void *) info);
 404   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->m_id);
 405
 406   /* set the new current component of the tree */
 407   current_routing = new_as;
 408   current_routing->p_netElem = info;
 409
 410 }
 411
 412 /**
 413  * \brief Specify that the current description of AS is finished
 414  *
 415  * Once you've declared all the content of your AS, you have to close
 416  * it with this call. Your AS is not usable until you call this function.
 417  *
 418  * @fixme: this call is not as robust as wanted: bad things WILL happen
 419  * if you call it twice for the same AS, or if you forget calling it, or
 420  * even if you add stuff to a closed AS
 421  *
 422  */
 423 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
 424 {
 425
 426   if (current_routing == NULL) {
 427     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 428   } else {
 429     if (current_routing->p_modelDesc->end)
 430       current_routing->p_modelDesc->end(current_routing);
 431     current_routing = current_routing->p_routingFather;
 432   }
 433 }
 434
 435 /* Aux Business methods */
 436
 437 /**
 438  * \brief Get the AS father and the first elements of the chain
 439  *
 440  * \param src the source host name
 441  * \param dst the destination host name
 442  *
 443  * Get the common father of the to processing units, and the first different
 444  * father in the chain
 445  */
 446 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 447                             AS_t * res_father,
 448                             AS_t * res_src,
 449                             AS_t * res_dst)
 450 {
 451   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 452 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 453   AsPtr src_as, dst_as;
 454   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
 455   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
 456   int index_src = 0;
 457   int index_dst = 0;
 458   AsPtr current;
 459   AsPtr current_src;
 460   AsPtr current_dst;
 461   AsPtr father;
 462
 463   /* (1) find the as where the src and dst are located */
 464   sg_routing_edge_t src_data = src;
 465   sg_routing_edge_t dst_data = dst;
 466   src_as = src_data->p_rcComponent;
 467   dst_as = dst_data->p_rcComponent;
 468 #ifndef NDEBUG
 469   char* src_name = src_data->p_name;
 470   char* dst_name = dst_data->p_name;
 471 #endif
 472
 473   xbt_assert(src_as && dst_as,
 474              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 475
 476   /* (2) find the path to the root routing component */
 477   for (current = src_as; current != NULL; current = current->p_routingFather) {
 478     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 479       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 480     path_src[index_src++] = current;
 481   }
 482   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 483     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 484       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 485     path_dst[index_dst++] = current;
 486   }
 487
 488   /* (3) find the common father */
 489   do {
 490     current_src = path_src[--index_src];
 491     current_dst = path_dst[--index_dst];
 492   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 493
 494   /* (4) they are not in the same routing component, make the path */
 495   if (current_src == current_dst)
 496     father = current_src;
 497   else
 498     father = path_src[index_src + 1];
 499
 500   /* (5) result generation */
 501   *res_father = father;         /* first the common father of src and dst */
 502   *res_src = current_src;       /* second the first different father of src */
 503   *res_dst = current_dst;       /* three  the first different father of dst */
 504
 505 #undef ELEMENTS_FATHER_MAXDEPTH
 506 }
 507
 508 /* Global Business methods */
 509
 510 /**
 511  * \brief Recursive function for get_route_latency
 512  *
 513  * \param src the source host name
 514  * \param dst the destination host name
 515  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 516  * \param *latency the latency, if needed
 517  *
 518  * This function is called by "get_route" and "get_latency". It allows to walk
 519  * recursively through the ASes tree.
 520  */
 521 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
 522                                    xbt_dynar_t * links, double *latency)
 523 {
 524   s_sg_platf_route_cbarg_t route;
 525   memset(&route,0,sizeof(route));
 526
 527   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 528   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->p_name, dst->p_name);
 529
 530   /* Find how src and dst are interconnected */
 531   AsPtr common_father, src_father, dst_father;
 532   elements_father(src, dst, &common_father, &src_father, &dst_father);
 533   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 534       common_father->p_name, src_father->p_name, dst_father->p_name);
 535
 536   /* Check whether a direct bypass is defined */
 537   sg_platf_route_cbarg_t e_route_bypass = NULL;
 538   //FIXME:REMOVE:if (common_father->get_bypass_route)
 539
 540   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 541
 542   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 543   if (e_route_bypass) {
 544     xbt_dynar_merge(links, &e_route_bypass->link_list);
 545     //FIXME:generic_free_route(e_route_bypass);
 546     return;
 547   }
 548
 549   /* If src and dst are in the same AS, life is good */
 550   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 551     route.link_list = *links;
 552     common_father->getRouteAndLatency(src, dst, &route, latency);
 553     // if vivaldi latency+=vivaldi(src,dst)
 554     return;
 555   }
 556
 557   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 558
 559   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 560   // Find the net_card corresponding to father
 561   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
 562   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
 563
 564   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 565                                     &route, latency);
 566
 567   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 568       "bad gateways for route from \"%s\" to \"%s\"", src->p_name, dst->p_name);
 569
 570   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 571   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 572
 573   /* If source gateway is not our source, we have to recursively find our way up to this point */
 574   if (src != src_gateway_net_elm)
 575     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 576   xbt_dynar_merge(links, &route.link_list);
 577
 578   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 579   if (dst_gateway_net_elm != dst)
 580     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 581
 582   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 583 }
 584
 585 AS_t surf_platf_get_root(routing_platf_t platf){
 586   return platf->p_root;
 587 }
 588
 589 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
 590   return edge->p_rcType;
 591 }
 592
 593
 594 /**
 595  * \brief Find a route between hosts
 596  *
 597  * \param src the network_element_t for src host
 598  * \param dst the network_element_t for dst host
 599  * \param route where to store the list of links.
 600  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 601  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 602  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 603  * \pre route!=NULL
 604  *
 605  * walk through the routing components tree and find a route between hosts
 606  * by calling the differents "get_route" functions in each routing component.
 607  */
 608 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
 609                                    xbt_dynar_t* route, double *latency)
 610 {
 611   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->p_name, dst->p_name);
 612   if (!*route) {
 613     xbt_dynar_reset(routing_platf->p_lastRoute);
 614     *route = routing_platf->p_lastRoute;
 615   }
 616
 617   _get_route_and_latency(src, dst, route, latency);
 618
 619   xbt_assert(!latency || *latency >= 0.0,
 620              "negative latency on route between \"%s\" and \"%s\"", src->p_name, dst->p_name);
 621 }
 622
 623 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 624   return recursiveGetOneLinkRoutes(p_root);
 625 }
 626
 627 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
 628 {
 629   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free);
 630
 631   //adding my one link routes
 632   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 633   if (onelink_mine)
 634     xbt_dynar_merge(&ret,&onelink_mine);
 635
 636   //recursing
 637   char *key;
 638   xbt_dict_cursor_t cursor = NULL;
 639   AS_t rc_child;
 640   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 641     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 642     if (onelink_child)
 643       xbt_dynar_merge(&ret,&onelink_child);
 644   }
 645   return ret;
 646 }
 647
 648 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 649 {
 650   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
 651   if (rc)
 652     return rc->p_rcType;
 653
 654   return SURF_NETWORK_ELEMENT_NULL;
 655 }
 656
 657 /**
 658  * \brief Generic method: create the global routing schema
 659  *
 660  * Make a global routing structure and set all the parsing functions.
 661  */
 662 void routing_model_create( void *loopback)
 663 {
 664   /* config the uniq global routing */
 665   routing_platf = new RoutingPlatf();
 666   routing_platf->p_root = NULL;
 667   routing_platf->p_loopback = loopback;
 668   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 669   /* no current routing at moment */
 670   current_routing = NULL;
 671 }
 672
 673
 674 /* ************************************************** */
 675 /* ********** PATERN FOR NEW ROUTING **************** */
 676
 677 /* The minimal configuration of a new routing model need the next functions,
 678  * also you need to set at the start of the file, the new model in the model
 679  * list. Remember keep the null ending of the list.
 680  */
 681 /*** Routing model structure ***/
 682 // typedef struct {
 683 //   s_routing_component_t generic_routing;
 684 //   /* things that your routing model need */
 685 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 686
 687 /*** Parse routing model functions ***/
 688 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 689 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 690 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 691 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 692 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 693
 694 /*** Business methods ***/
 695 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 696 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 697 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 698
 699 /*** Creation routing model functions ***/
 700 // static void* model_NEW_create(void) {
 701 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 702 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 703 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 704 //   new_component->generic_routing.set_route = model_NEW_set_route;
 705 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 706 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 707 //   new_component->generic_routing.get_route = NEW_get_route;
 708 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 709 //   new_component->generic_routing.finalize = NEW_finalize;
 710 //   /* initialization of internal structures */
 711 //   return new_component;
 712 // } /* mandatory */
 713 // static void  model_NEW_load(void) {}   /* mandatory */
 714 // static void  model_NEW_unload(void) {} /* mandatory */
 715 // static void  model_NEW_end(void) {}    /* mandatory */
 716
 717 /* ************************************************************************** */
 718 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 719
 720 void routing_cluster_add_backbone(void* bb) {
 721   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 722         "You have to be in model Cluster to use tag backbone!");
 723   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
 724   surf_as_cluster_set_backbone(current_routing, bb);
 725   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 726 }
 727
 728 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 729 {
 730   int start, end, i;
 731   char *groups , *host_id , *link_id = NULL;
 732   unsigned int iter;
 733   xbt_dynar_t radical_elements;
 734   xbt_dynar_t radical_ends;
 735
 736   //Make all hosts
 737   radical_elements = xbt_str_split(cabinet->radical, ",");
 738   xbt_dynar_foreach(radical_elements, iter, groups) {
 739
 740     radical_ends = xbt_str_split(groups, "-");
 741     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 742
 743     switch (xbt_dynar_length(radical_ends)) {
 744     case 1:
 745       end = start;
 746       break;
 747     case 2:
 748       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 749       break;
 750     default:
 751       surf_parse_error("Malformed radical");
 752       break;
 753     }
 754     s_sg_platf_host_cbarg_t host;
 755     memset(&host, 0, sizeof(host));
 756     host.initial_state = SURF_RESOURCE_ON;
 757     host.pstate = 0;
 758     host.power_scale = 1.0;
 759     host.core_amount = 1;
 760
 761     s_sg_platf_link_cbarg_t link;
 762     memset(&link, 0, sizeof(link));
 763     link.state = SURF_RESOURCE_ON;
 764     link.policy = SURF_LINK_FULLDUPLEX;
 765     link.latency = cabinet->lat;
 766     link.bandwidth = cabinet->bw;
 767
 768     s_sg_platf_host_link_cbarg_t host_link;
 769     memset(&host_link, 0, sizeof(host_link));
 770
 771     for (i = start; i <= end; i++) {
 772       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 773       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 774       host.id = host_id;
 775       link.id = link_id;
 776       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 777       xbt_dynar_push(power_state_list,&cabinet->power);
 778       host.power_peak = power_state_list;
 779       sg_platf_new_host(&host);
 780       sg_platf_new_link(&link);
 781
 782       char* link_up = bprintf("%s_UP",link_id);
 783       char* link_down = bprintf("%s_DOWN",link_id);
 784       host_link.id = host_id;
 785       host_link.link_up = link_up;
 786       host_link.link_down= link_down;
 787       sg_platf_new_host_link(&host_link);
 788
 789       free(host_id);
 790       free(link_id);
 791       free(link_up);
 792       free(link_down);
 793     }
 794
 795     xbt_dynar_free(&radical_ends);
 796   }
 797   xbt_dynar_free(&radical_elements);
 798 }
 799
 800 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 801 {
 802   char *host_id, *groups, *link_id = NULL;
 803   xbt_dict_t patterns = NULL;
 804
 805   s_sg_platf_host_cbarg_t host;
 806   s_sg_platf_link_cbarg_t link;
 807
 808   unsigned int iter;
 809   int start, end, i;
 810   xbt_dynar_t radical_elements;
 811   xbt_dynar_t radical_ends;
 812
 813   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 814       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 815     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 816     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 817     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 818     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 819   }
 820
 821   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 822   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 823   AS.id = cluster->id;
 824   AS.routing = A_surfxml_AS_routing_Cluster;
 825   sg_platf_new_AS_begin(&AS);
 826
 827   current_routing->p_linkUpDownList
 828             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 829
 830   //Make all hosts
 831   radical_elements = xbt_str_split(cluster->radical, ",");
 832   xbt_dynar_foreach(radical_elements, iter, groups) {
 833
 834     radical_ends = xbt_str_split(groups, "-");
 835     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 836
 837     switch (xbt_dynar_length(radical_ends)) {
 838     case 1:
 839       end = start;
 840       break;
 841     case 2:
 842       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 843       break;
 844     default:
 845       surf_parse_error("Malformed radical");
 846       break;
 847     }
 848     for (i = start; i <= end; i++) {
 849       host_id =
 850           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 851       link_id = bprintf("%s_link_%d", cluster->id, i);
 852
 853       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 854
 855       memset(&host, 0, sizeof(host));
 856       host.id = host_id;
 857       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 858         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 859         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 860         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 861         host.power_trace = tmgr_trace_new_from_file(avail_file);
 862         xbt_free(avail_file);
 863       } else {
 864         XBT_DEBUG("\tavailability_file=\"\"");
 865       }
 866
 867       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 868         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 869         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 870         host.state_trace = tmgr_trace_new_from_file(avail_file);
 871         xbt_free(avail_file);
 872       } else {
 873         XBT_DEBUG("\tstate_file=\"\"");
 874       }
 875
 876       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 877       xbt_dynar_push(power_state_list,&cluster->power);
 878       host.power_peak = power_state_list;
 879       host.pstate = 0;
 880
 881       //host.power_peak = cluster->power;
 882       host.power_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_DEBUG("</host>");
 888
 889       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 890                 cluster->bw, cluster->lat);
 891
 892       memset(&link, 0, sizeof(link));
 893       link.id = link_id;
 894       link.bandwidth = cluster->bw;
 895       link.latency = cluster->lat;
 896       link.state = SURF_RESOURCE_ON;
 897       link.policy = cluster->sharing_policy;
 898       sg_platf_new_link(&link);
 899
 900       s_surf_parsing_link_up_down_t info;
 901
 902       if (link.policy == SURF_LINK_FULLDUPLEX) {
 903         char *tmp_link = bprintf("%s_UP", link_id);
 904         info.link_up =
 905             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 906         free(tmp_link);
 907         tmp_link = bprintf("%s_DOWN", link_id);
 908         info.link_down =
 909             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 910         free(tmp_link);
 911       } else {
 912         info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
 913         info.link_down = info.link_up;
 914       }
 915
 916       if(cluster->limiter_link!=0){
 917         char *tmp_link = bprintf("%s_limiter", link_id);
 918         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 919                 cluster->limiter_link);
 920
 921
 922         memset(&link, 0, sizeof(link));
 923         link.id = tmp_link;
 924         link.bandwidth = cluster->limiter_link;
 925         link.latency = 0;
 926         link.state = SURF_RESOURCE_ON;
 927         link.policy = SURF_LINK_SHARED;
 928         sg_platf_new_link(&link);
 929          info.limiter_link =
 930             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 931         free(tmp_link);
 932       }else{
 933         info.limiter_link =NULL;
 934       }
 935
 936       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 937         char *tmp_link = bprintf("%s_loopback", link_id);
 938         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 939                 cluster->limiter_link);
 940
 941
 942         memset(&link, 0, sizeof(link));
 943         link.id = tmp_link;
 944         link.bandwidth = cluster->loopback_bw;
 945         link.latency = cluster->loopback_lat;
 946         link.state = SURF_RESOURCE_ON;
 947         link.policy = SURF_LINK_FATPIPE;
 948         sg_platf_new_link(&link);
 949          info.loopback_link =
 950             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 951         free(tmp_link);
 952       }else{
 953         info.loopback_link =NULL;
 954       }
 955
 956       xbt_dynar_push(current_routing->p_linkUpDownList, &info);
 957       xbt_free(link_id);
 958       xbt_free(host_id);
 959     }
 960
 961     xbt_dynar_free(&radical_ends);
 962   }
 963   xbt_dynar_free(&radical_elements);
 964
 965   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 966   // and it's very useful to connect clusters together
 967   XBT_DEBUG(" ");
 968   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 969   char *newid = NULL;
 970   s_sg_platf_router_cbarg_t router;
 971   memset(&router, 0, sizeof(router));
 972   router.id = cluster->router_id;
 973   router.coord = "";
 974   if (!router.id || !strcmp(router.id, ""))
 975     router.id = newid =
 976         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 977                 cluster->suffix);
 978   sg_platf_new_router(&router);
 979   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 980   free(newid);
 981
 982   //Make the backbone
 983   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 984     char *link_backbone = bprintf("%s_backbone", cluster->id);
 985     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 986               cluster->bb_bw, cluster->bb_lat);
 987
 988     memset(&link, 0, sizeof(link));
 989     link.id = link_backbone;
 990     link.bandwidth = cluster->bb_bw;
 991     link.latency = cluster->bb_lat;
 992     link.state = SURF_RESOURCE_ON;
 993     link.policy = cluster->bb_sharing_policy;
 994
 995     sg_platf_new_link(&link);
 996
 997     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
 998
 999     free(link_backbone);
1000   }
1001
1002   XBT_DEBUG("</AS>");
1003   sg_platf_new_AS_end();
1004   XBT_DEBUG(" ");
1005   xbt_dict_free(&patterns); // no op if it were never set
1006 }
1007
1008 static void routing_parse_postparse(void) {
1009   xbt_dict_free(&random_value);
1010 }
1011
1012 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1013 {
1014   char *host_id = NULL;
1015   char *link_id = NULL;
1016   char *router_id = NULL;
1017
1018   XBT_DEBUG(" ");
1019   host_id = HOST_PEER(peer->id);
1020   link_id = LINK_PEER(peer->id);
1021   router_id = ROUTER_PEER(peer->id);
1022
1023   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1024   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1025   AS.id = peer->id;
1026   AS.routing = A_surfxml_AS_routing_Cluster;
1027   sg_platf_new_AS_begin(&AS);
1028
1029   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1030
1031   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1032   s_sg_platf_host_cbarg_t host;
1033   memset(&host, 0, sizeof(host));
1034   host.initial_state = SURF_RESOURCE_ON;
1035   host.id = host_id;
1036
1037   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1038   xbt_dynar_push(power_state_list,&peer->power);
1039   host.power_peak = power_state_list;
1040   host.pstate = 0;
1041   //host.power_peak = peer->power;
1042   host.power_scale = 1.0;
1043   host.power_trace = peer->availability_trace;
1044   host.state_trace = peer->state_trace;
1045   host.core_amount = 1;
1046   sg_platf_new_host(&host);
1047
1048   s_sg_platf_link_cbarg_t link;
1049   memset(&link, 0, sizeof(link));
1050   link.state = SURF_RESOURCE_ON;
1051   link.policy = SURF_LINK_SHARED;
1052   link.latency = peer->lat;
1053
1054   char* link_up = bprintf("%s_UP",link_id);
1055   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1056             peer->bw_out, peer->lat);
1057   link.id = link_up;
1058   link.bandwidth = peer->bw_out;
1059   sg_platf_new_link(&link);
1060
1061   char* link_down = bprintf("%s_DOWN",link_id);
1062   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1063             peer->bw_in, peer->lat);
1064   link.id = link_down;
1065   link.bandwidth = peer->bw_in;
1066   sg_platf_new_link(&link);
1067
1068   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1069   s_sg_platf_host_link_cbarg_t host_link;
1070   memset(&host_link, 0, sizeof(host_link));
1071   host_link.id = host_id;
1072   host_link.link_up = link_up;
1073   host_link.link_down= link_down;
1074   sg_platf_new_host_link(&host_link);
1075
1076   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1077   s_sg_platf_router_cbarg_t router;
1078   memset(&router, 0, sizeof(router));
1079   router.id = router_id;
1080   router.coord = peer->coord;
1081   sg_platf_new_router(&router);
1082   static_cast<AsClusterPtr>(current_routing)->p_router = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1083
1084   XBT_DEBUG("</AS>");
1085   sg_platf_new_AS_end();
1086   XBT_DEBUG(" ");
1087
1088   //xbt_dynar_free(&tab_elements_num);
1089   free(router_id);
1090   free(host_id);
1091   free(link_id);
1092   free(link_up);
1093   free(link_down);
1094 }
1095
1096 static void routing_parse_Srandom(void)
1097 {
1098   double mean, std, min, max, seed;
1099   char *random_id = A_surfxml_random_id;
1100   char *random_radical = A_surfxml_random_radical;
1101   char *rd_name = NULL;
1102   char *rd_value;
1103   mean = surf_parse_get_double(A_surfxml_random_mean);
1104   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1105   min = surf_parse_get_double(A_surfxml_random_min);
1106   max = surf_parse_get_double(A_surfxml_random_max);
1107   seed = surf_parse_get_double(A_surfxml_random_seed);
1108
1109   double res = 0;
1110   int i = 0;
1111   random_data_t random = xbt_new0(s_random_data_t, 1);
1112   char *tmpbuf;
1113
1114   xbt_dynar_t radical_elements;
1115   unsigned int iter;
1116   char *groups;
1117   int start, end;
1118   xbt_dynar_t radical_ends;
1119
1120   switch (A_surfxml_random_generator) {
1121   case AU_surfxml_random_generator:
1122   case A_surfxml_random_generator_NONE:
1123     random->generator = NONE;
1124     break;
1125   case A_surfxml_random_generator_DRAND48:
1126     random->generator = DRAND48;
1127     break;
1128   case A_surfxml_random_generator_RAND:
1129     random->generator = RAND;
1130     break;
1131   case A_surfxml_random_generator_RNGSTREAM:
1132     random->generator = RNGSTREAM;
1133     break;
1134   default:
1135     surf_parse_error("Invalid random generator");
1136     break;
1137   }
1138   random->seed = seed;
1139   random->min = min;
1140   random->max = max;
1141
1142   /* Check user stupidities */
1143   if (max < min)
1144     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1145   if (mean < min)
1146     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1147   if (mean > max)
1148     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1149
1150   /* normalize the mean and standard deviation before storing */
1151   random->mean = (mean - min) / (max - min);
1152   random->std = std / (max - min);
1153
1154   if (random->mean * (1 - random->mean) < random->std * random->std)
1155     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1156            random->mean, random->std);
1157
1158   XBT_DEBUG
1159       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1160        random_id, random->min, random->max, random->mean, random->std,
1161        (int)random->generator, random->seed, random_radical);
1162
1163   if (!random_value)
1164     random_value = xbt_dict_new_homogeneous(free);
1165
1166   if (!strcmp(random_radical, "")) {
1167     res = random_generate(random);
1168     rd_value = bprintf("%f", res);
1169     xbt_dict_set(random_value, random_id, rd_value, NULL);
1170   } else {
1171     radical_elements = xbt_str_split(random_radical, ",");
1172     xbt_dynar_foreach(radical_elements, iter, groups) {
1173       radical_ends = xbt_str_split(groups, "-");
1174       switch (xbt_dynar_length(radical_ends)) {
1175       case 1:
1176         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1177                    "Custom Random '%s' already exists !", random_id);
1178         res = random_generate(random);
1179         tmpbuf =
1180             bprintf("%s%d", random_id,
1181                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1182         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1183         xbt_free(tmpbuf);
1184         break;
1185
1186       case 2:
1187         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1188         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1189         for (i = start; i <= end; i++) {
1190           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1191                      "Custom Random '%s' already exists !", bprintf("%s%d",
1192                                                                     random_id,
1193                                                                     i));
1194           res = random_generate(random);
1195           tmpbuf = bprintf("%s%d", random_id, i);
1196           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1197           xbt_free(tmpbuf);
1198         }
1199         break;
1200       default:
1201         XBT_CRITICAL("Malformed radical");
1202         break;
1203       }
1204       res = random_generate(random);
1205       rd_name = bprintf("%s_router", random_id);
1206       rd_value = bprintf("%f", res);
1207       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1208
1209       xbt_dynar_free(&radical_ends);
1210     }
1211     free(rd_name);
1212     xbt_dynar_free(&radical_elements);
1213   }
1214 }
1215
1216 void routing_register_callbacks()
1217 {
1218   sg_platf_host_add_cb(parse_S_host);
1219   sg_platf_router_add_cb(parse_S_router);
1220   sg_platf_host_link_add_cb(parse_S_host_link);
1221   sg_platf_route_add_cb(parse_E_route);
1222   sg_platf_ASroute_add_cb(parse_E_ASroute);
1223   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1224   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1225
1226   sg_platf_cluster_add_cb(routing_parse_cluster);
1227   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1228
1229   sg_platf_peer_add_cb(routing_parse_peer);
1230   sg_platf_postparse_add_cb(routing_parse_postparse);
1231
1232   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1233   sg_platf_AS_end_add_cb(routing_AS_end);
1234   sg_platf_AS_begin_add_cb(routing_AS_begin);
1235
1236   sg_platf_trace_add_cb(routing_parse_trace);
1237   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1238
1239 #ifdef HAVE_TRACING
1240   instr_routing_define_callbacks();
1241 #endif
1242 }
1243
1244 /**
1245  * \brief Recursive function for finalize
1246  *
1247  * \param rc the source host name
1248  *
1249  * This fuction is call by "finalize". It allow to finalize the
1250  * AS or routing components. It delete all the structures.
1251  */
1252 static void finalize_rec(AsPtr as) {
1253   xbt_dict_cursor_t cursor = NULL;
1254   char *key;
1255   AS_t elem;
1256
1257   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1258     finalize_rec(elem);
1259   }
1260
1261   delete as;;
1262 }
1263
1264 /** \brief Frees all memory allocated by the routing module */
1265 void routing_exit(void) {
1266   if (!routing_platf)
1267     return;
1268   xbt_dynar_free(&routing_platf->p_lastRoute);
1269   finalize_rec(routing_platf->p_root);
1270   xbt_free(routing_platf);
1271 }
1272
1273 AS_t surf_AS_get_routing_root() {
1274   return routing_platf->p_root;
1275 }
1276
1277 const char *surf_AS_get_name(AsPtr as) {
1278   return as->p_name;
1279 }
1280
1281 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1282   return as->p_routingSons;
1283 }
1284
1285 const char *surf_AS_get_model(AsPtr as) {
1286   return as->p_modelDesc->name;
1287 }
1288
1289 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1290   xbt_dynar_t elms = as->p_indexNetworkElm;
1291   sg_routing_edge_t relm;
1292   xbt_dictelm_t delm;
1293   int index;
1294   int count = xbt_dynar_length(elms);
1295   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1296   for (index = 0; index < count; index++) {
1297      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1298      delm = xbt_lib_get_elm_or_null(host_lib, relm->p_name);
1299      if (delm!=NULL) {
1300        xbt_dynar_push(res, &delm);
1301      }
1302   }
1303   return res;
1304 }
1305
1306 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1307   as->getGraph(graph, nodes, edges);
1308 }
1309