src/surf/surf_routing.cpp

   1 /* Copyright (c) 2009-2011, 2013-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "surf_routing.hpp"
   8 #include "surf_routing_private.hpp"
   9 #include "surf_routing_cluster.hpp"
  10 #include "surf_routing_cluster_torus.hpp"
  11
  12
  13 #include "simgrid/platf_interface.h"    // platform creation API internal interface
  14 #include "simgrid/sg_config.h"
  15
  16 #include "surf/surfxml_parse_values.h"
  17
  18 /**
  19  * @ingroup SURF_build_api
  20  * @brief A library containing all known workstations
  21  */
  22 xbt_lib_t host_lib;
  23
  24 int ROUTING_HOST_LEVEL;         //Routing level
  25 int SURF_CPU_LEVEL;             //Surf cpu level
  26 int SURF_WKS_LEVEL;             //Surf workstation level
  27 int SIMIX_HOST_LEVEL;           //Simix host level
  28 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  29 int MSG_HOST_LEVEL;             //Msg host level
  30 int MSG_STORAGE_LEVEL;          //Msg storage level
  31 int SD_HOST_LEVEL;              //Simdag host level
  32 int SD_STORAGE_LEVEL;           //Simdag storage level
  33 int COORD_HOST_LEVEL=0;         //Coordinates level
  34 int NS3_HOST_LEVEL;             //host node for ns3
  35
  36 /**
  37  * @ingroup SURF_build_api
  38  * @brief A library containing all known links
  39  */
  40 xbt_lib_t link_lib;
  41 int SD_LINK_LEVEL;              //Simdag level
  42 int SURF_LINK_LEVEL;            //Surf level
  43 int NS3_LINK_LEVEL;             //link for ns3
  44
  45 xbt_lib_t as_router_lib;
  46 int ROUTING_ASR_LEVEL;          //Routing level
  47 int COORD_ASR_LEVEL;            //Coordinates level
  48 int NS3_ASR_LEVEL;              //host node for ns3
  49 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  50
  51 static xbt_dict_t random_value = NULL;
  52
  53
  54 /** @brief Retrieve a routing edge from its name
  55  *
  56  * Routing edges are either CPU/workstation and routers, whatever
  57  */
  58 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
  59   RoutingEdgePtr net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
  60   if (!net_elm)
  61         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  62   return net_elm;
  63 }
  64
  65 /* Global vars */
  66 RoutingPlatfPtr routing_platf = NULL;
  67 AsPtr current_routing = NULL;
  68
  69 /* global parse functions */
  70 extern xbt_dynar_t mount_list;
  71
  72 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  73
  74 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  75 // static void routing_parse_Srandom(void);        /* random bypass */
  76
  77 static void routing_parse_postparse(void);
  78
  79 /* this lines are only for replace use like index in the model table */
  80 typedef enum {
  81   SURF_MODEL_FULL = 0,
  82   SURF_MODEL_FLOYD,
  83   SURF_MODEL_DIJKSTRA,
  84   SURF_MODEL_DIJKSTRACACHE,
  85   SURF_MODEL_NONE,
  86   SURF_MODEL_VIVALDI,
  87   SURF_MODEL_CLUSTER,
  88   SURF_MODEL_TORUS_CLUSTER,
  89
  90 } e_routing_types;
  91
  92 struct s_model_type routing_models[] = {
  93   {"Full",
  94    "Full routing data (fast, large memory requirements, fully expressive)",
  95    model_full_create, model_full_end},
  96   {"Floyd",
  97    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  98    model_floyd_create, model_floyd_end},
  99   {"Dijkstra",
 100    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
 101    model_dijkstra_create, model_dijkstra_both_end},
 102   {"DijkstraCache",
 103    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
 104    model_dijkstracache_create, model_dijkstra_both_end},
 105   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
 106    model_none_create,  NULL},
 107   {"Vivaldi", "Vivaldi routing",
 108    model_vivaldi_create, NULL},
 109   {"Cluster", "Cluster routing",
 110    model_cluster_create, NULL},
 111    {"Torus_Cluster", "Torus Cluster routing",
 112     model_torus_cluster_create, NULL},
 113   {NULL, NULL, NULL, NULL}
 114 };
 115
 116 /**
 117  * \brief Add a "host_link" to the network element list
 118  */
 119 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
 120 {
 121   RoutingEdgePtr info = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL));
 122   xbt_assert(info, "Host '%s' not found!", host->id);
 123   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 124       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 125       "You have to be in model Cluster to use tag host_link!");
 126
 127   s_surf_parsing_link_up_down_t link_up_down;
 128   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
 129   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
 130
 131   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 132   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 133
 134   if(!current_routing->p_linkUpDownList)
 135     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 136
 137   // If dynar is is greater than edge id and if the host_link is already defined
 138   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
 139       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
 140     xbt_die("Host_link for '%s' is already defined!",host->id);
 141
 142   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
 143   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
 144 }
 145
 146 /**
 147  * \brief Add a "host" to the network element list
 148  */
 149 static void parse_S_host(sg_platf_host_cbarg_t host)
 150 {
 151   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 152     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 153   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
 154              "Reading a host, processing unit \"%s\" already exists", host->id);
 155
 156   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(host->id),
 157                                                     -1,
 158                                                     SURF_NETWORK_ELEMENT_HOST,
 159                                                     current_routing);
 160   info->setId(current_routing->parsePU(info));
 161   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
 162   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->getId());
 163
 164   if(mount_list){
 165     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 166     mount_list = NULL;
 167   }
 168
 169   if (host->coord && strcmp(host->coord, "")) {
 170     unsigned int cursor;
 171     char*str;
 172
 173     if (!COORD_HOST_LEVEL)
 174       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 175     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 176     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 177     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 178     xbt_dynar_foreach(ctn_str,cursor, str) {
 179       double val = atof(str);
 180       xbt_dynar_push(ctn,&val);
 181     }
 182     xbt_dynar_shrink(ctn, 0);
 183     xbt_dynar_free(&ctn_str);
 184     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 185     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 186   }
 187 }
 188
 189 /**
 190  * \brief Add a "router" to the network element list
 191  */
 192 static void parse_S_router(sg_platf_router_cbarg_t router)
 193 {
 194   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 195     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 196   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 197              "Reading a router, processing unit \"%s\" already exists",
 198              router->id);
 199
 200   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(router->id),
 201                                             -1,
 202                                             SURF_NETWORK_ELEMENT_ROUTER,
 203                                             current_routing);
 204   info->setId(current_routing->parsePU(info));
 205   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 206   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 207
 208   if (router->coord && strcmp(router->coord, "")) {
 209     unsigned int cursor;
 210     char*str;
 211
 212     if (!COORD_ASR_LEVEL)
 213       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 214     /* Pre-parse the host coordinates */
 215     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 216     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 217     xbt_dynar_foreach(ctn_str,cursor, str) {
 218       double val = atof(str);
 219       xbt_dynar_push(ctn,&val);
 220     }
 221     xbt_dynar_shrink(ctn, 0);
 222     xbt_dynar_free(&ctn_str);
 223     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 224     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 225   }
 226 }
 227
 228 /**
 229  * \brief Store the route by calling the set_route function of the current routing component
 230  */
 231 static void parse_E_route(sg_platf_route_cbarg_t route)
 232 {
 233   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
 234              "no defined method \"set_route\" in \"%s\"",
 235              current_routing->name);*/
 236
 237   current_routing->parseRoute(route);
 238 }
 239
 240 /**
 241  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 242  */
 243 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 244 {
 245   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
 246              "no defined method \"set_ASroute\" in \"%s\"",
 247              current_routing->name);*/
 248   current_routing->parseASroute(ASroute);
 249 }
 250
 251 /**
 252  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 253  */
 254 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 255 {
 256   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 257              "Bypassing mechanism not implemented by routing '%s'",
 258              current_routing->name);*/
 259
 260   current_routing->parseBypassroute(route);
 261 }
 262
 263 /**
 264  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 265  */
 266 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
 267 {
 268   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 269              "Bypassing mechanism not implemented by routing '%s'",
 270              current_routing->name);*/
 271   current_routing->parseBypassroute(ASroute);
 272 }
 273
 274 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 275 {
 276   tmgr_trace_t tmgr_trace;
 277   if (!trace->file || strcmp(trace->file, "") != 0) {
 278     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 279   } else if (strcmp(trace->pc_data, "") == 0) {
 280     tmgr_trace = NULL;
 281   } else {
 282     tmgr_trace =
 283           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 284                                      trace->periodicity);
 285   }
 286   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 287 }
 288
 289 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 290 {
 291   xbt_assert(xbt_dict_get_or_null
 292               (traces_set_list, trace_connect->trace),
 293               "Cannot connect trace %s to %s: trace unknown",
 294               trace_connect->trace,
 295               trace_connect->element);
 296
 297   switch (trace_connect->kind) {
 298   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 299     xbt_dict_set(trace_connect_list_host_avail,
 300         trace_connect->trace,
 301         xbt_strdup(trace_connect->element), NULL);
 302     break;
 303   case SURF_TRACE_CONNECT_KIND_POWER:
 304     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 305         xbt_strdup(trace_connect->element), NULL);
 306     break;
 307   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 308     xbt_dict_set(trace_connect_list_link_avail,
 309         trace_connect->trace,
 310         xbt_strdup(trace_connect->element), NULL);
 311     break;
 312   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 313     xbt_dict_set(trace_connect_list_bandwidth,
 314         trace_connect->trace,
 315         xbt_strdup(trace_connect->element), NULL);
 316     break;
 317   case SURF_TRACE_CONNECT_KIND_LATENCY:
 318     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 319         xbt_strdup(trace_connect->element), NULL);
 320     break;
 321   default:
 322     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
 323         trace_connect->trace, trace_connect->element);
 324     break;
 325   }
 326 }
 327
 328 /**
 329  * \brief Make a new routing component to the platform
 330  *
 331  * Add a new autonomous system to the platform. Any elements (such as host,
 332  * router or sub-AS) added after this call and before the corresponding call
 333  * to sg_platf_new_AS_close() will be added to this AS.
 334  *
 335  * Once this function was called, the configuration concerning the used
 336  * models cannot be changed anymore.
 337  *
 338  * @param AS_id name of this autonomous system. Must be unique in the platform
 339  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 340  */
 341 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 342 {
 343   XBT_DEBUG("routing_AS_begin");
 344   routing_model_description_t model = NULL;
 345
 346   xbt_assert(!xbt_lib_get_or_null
 347              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 348              "The AS \"%s\" already exists", AS->id);
 349
 350   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 351                             * controlling the level of configuration to prevent
 352                             * any further config */
 353
 354   /* search the routing model */
 355   switch(AS->routing){
 356     case A_surfxml_AS_routing_Cluster:         model = &routing_models[SURF_MODEL_CLUSTER];break;
 357     case A_surfxml_AS_routing_Cluster___torus: model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 358     case A_surfxml_AS_routing_Dijkstra:        model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 359     case A_surfxml_AS_routing_DijkstraCache:   model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 360     case A_surfxml_AS_routing_Floyd:           model = &routing_models[SURF_MODEL_FLOYD];break;
 361     case A_surfxml_AS_routing_Full:            model = &routing_models[SURF_MODEL_FULL];break;
 362     case A_surfxml_AS_routing_None:            model = &routing_models[SURF_MODEL_NONE];break;
 363     case A_surfxml_AS_routing_Vivaldi:         model = &routing_models[SURF_MODEL_VIVALDI];break;
 364     default: xbt_die("Not a valid model!!!");
 365     break;
 366   }
 367
 368   /* make a new routing component */
 369   AsPtr new_as = model->create();
 370
 371   new_as->p_modelDesc = model;
 372   new_as->p_hierarchy = SURF_ROUTING_NULL;
 373   new_as->p_name = xbt_strdup(AS->id);
 374
 375   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(new_as->p_name),
 376                                             -1,
 377                                             SURF_NETWORK_ELEMENT_AS,
 378                                             current_routing);
 379   if (current_routing == NULL && routing_platf->p_root == NULL) {
 380
 381     /* it is the first one */
 382     new_as->p_routingFather = NULL;
 383     routing_platf->p_root = new_as;
 384     info->setId(-1);
 385   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 386
 387     xbt_assert(!xbt_dict_get_or_null
 388                (current_routing->p_routingSons, AS->id),
 389                "The AS \"%s\" already exists", AS->id);
 390     /* it is a part of the tree */
 391     new_as->p_routingFather = current_routing;
 392     /* set the father behavior */
 393     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 394       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 395     /* add to the sons dictionary */
 396     xbt_dict_set(current_routing->p_routingSons, AS->id,
 397                  (void *) new_as, NULL);
 398     /* add to the father element list */
 399     info->setId(current_routing->parseAS(info));
 400   } else {
 401     THROWF(arg_error, 0, "All defined components must be belong to a AS");
 402   }
 403
 404   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 405               (void *) info);
 406   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 407
 408   /* set the new current component of the tree */
 409   current_routing = new_as;
 410   current_routing->p_netElem = info;
 411
 412 }
 413
 414 /**
 415  * \brief Specify that the current description of AS is finished
 416  *
 417  * Once you've declared all the content of your AS, you have to close
 418  * it with this call. Your AS is not usable until you call this function.
 419  *
 420  * @fixme: this call is not as robust as wanted: bad things WILL happen
 421  * if you call it twice for the same AS, or if you forget calling it, or
 422  * even if you add stuff to a closed AS
 423  *
 424  */
 425 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
 426 {
 427
 428   if (current_routing == NULL) {
 429     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 430   } else {
 431     if (current_routing->p_modelDesc->end)
 432       current_routing->p_modelDesc->end(current_routing);
 433     current_routing = current_routing->p_routingFather;
 434   }
 435 }
 436
 437 /* Aux Business methods */
 438
 439 /**
 440  * \brief Get the AS father and the first elements of the chain
 441  *
 442  * \param src the source host name
 443  * \param dst the destination host name
 444  *
 445  * Get the common father of the to processing units, and the first different
 446  * father in the chain
 447  */
 448 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 449                             AS_t * res_father,
 450                             AS_t * res_src,
 451                             AS_t * res_dst)
 452 {
 453   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 454 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 455   AsPtr src_as, dst_as;
 456   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
 457   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
 458   int index_src = 0;
 459   int index_dst = 0;
 460   AsPtr current;
 461   AsPtr current_src;
 462   AsPtr current_dst;
 463   AsPtr father;
 464
 465   /* (1) find the as where the src and dst are located */
 466   sg_routing_edge_t src_data = src;
 467   sg_routing_edge_t dst_data = dst;
 468   src_as = src_data->getRcComponent();
 469   dst_as = dst_data->getRcComponent();
 470 #ifndef NDEBUG
 471   char* src_name = src_data->getName();
 472   char* dst_name = dst_data->getName();
 473 #endif
 474
 475   xbt_assert(src_as && dst_as,
 476              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 477
 478   /* (2) find the path to the root routing component */
 479   for (current = src_as; current != NULL; current = current->p_routingFather) {
 480     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 481       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 482     path_src[index_src++] = current;
 483   }
 484   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 485     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 486       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 487     path_dst[index_dst++] = current;
 488   }
 489
 490   /* (3) find the common father */
 491   do {
 492     current_src = path_src[--index_src];
 493     current_dst = path_dst[--index_dst];
 494   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 495
 496   /* (4) they are not in the same routing component, make the path */
 497   if (current_src == current_dst)
 498     father = current_src;
 499   else
 500     father = path_src[index_src + 1];
 501
 502   /* (5) result generation */
 503   *res_father = father;         /* first the common father of src and dst */
 504   *res_src = current_src;       /* second the first different father of src */
 505   *res_dst = current_dst;       /* three  the first different father of dst */
 506
 507 #undef ELEMENTS_FATHER_MAXDEPTH
 508 }
 509
 510 /* Global Business methods */
 511
 512 /**
 513  * \brief Recursive function for get_route_latency
 514  *
 515  * \param src the source host name
 516  * \param dst the destination host name
 517  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 518  * \param *latency the latency, if needed
 519  *
 520  * This function is called by "get_route" and "get_latency". It allows to walk
 521  * recursively through the ASes tree.
 522  */
 523 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
 524                                    xbt_dynar_t * links, double *latency)
 525 {
 526   s_sg_platf_route_cbarg_t route;
 527   memset(&route,0,sizeof(route));
 528
 529   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 530   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 531
 532   /* Find how src and dst are interconnected */
 533   AsPtr common_father, src_father, dst_father;
 534   elements_father(src, dst, &common_father, &src_father, &dst_father);
 535   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 536       common_father->p_name, src_father->p_name, dst_father->p_name);
 537
 538   /* Check whether a direct bypass is defined */
 539   sg_platf_route_cbarg_t e_route_bypass = NULL;
 540   //FIXME:REMOVE:if (common_father->get_bypass_route)
 541
 542   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 543
 544   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 545   if (e_route_bypass) {
 546     xbt_dynar_merge(links, &e_route_bypass->link_list);
 547     generic_free_route(e_route_bypass);
 548     return;
 549   }
 550
 551   /* If src and dst are in the same AS, life is good */
 552   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 553     route.link_list = *links;
 554     common_father->getRouteAndLatency(src, dst, &route, latency);
 555     // if vivaldi latency+=vivaldi(src,dst)
 556     return;
 557   }
 558
 559   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 560
 561   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 562   // Find the net_card corresponding to father
 563   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
 564   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
 565
 566   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 567                                     &route, latency);
 568
 569   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 570       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 571
 572   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 573   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 574
 575   /* If source gateway is not our source, we have to recursively find our way up to this point */
 576   if (src != src_gateway_net_elm)
 577     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 578   xbt_dynar_merge(links, &route.link_list);
 579
 580   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 581   if (dst_gateway_net_elm != dst)
 582     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 583
 584   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 585 }
 586
 587 AS_t surf_platf_get_root(routing_platf_t platf){
 588   return platf->p_root;
 589 }
 590
 591 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
 592   return edge->getRcType();
 593 }
 594
 595
 596 /**
 597  * \brief Find a route between hosts
 598  *
 599  * \param src the network_element_t for src host
 600  * \param dst the network_element_t for dst host
 601  * \param route where to store the list of links.
 602  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 603  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 604  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 605  * \pre route!=NULL
 606  *
 607  * walk through the routing components tree and find a route between hosts
 608  * by calling the differents "get_route" functions in each routing component.
 609  */
 610 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
 611                                    xbt_dynar_t* route, double *latency)
 612 {
 613   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 614   if (!*route) {
 615     xbt_dynar_reset(routing_platf->p_lastRoute);
 616     *route = routing_platf->p_lastRoute;
 617   }
 618
 619   _get_route_and_latency(src, dst, route, latency);
 620
 621   xbt_assert(!latency || *latency >= 0.0,
 622              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 623 }
 624
 625 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 626   return recursiveGetOneLinkRoutes(p_root);
 627 }
 628
 629 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
 630 {
 631   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free);
 632
 633   //adding my one link routes
 634   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 635   if (onelink_mine)
 636     xbt_dynar_merge(&ret,&onelink_mine);
 637
 638   //recursing
 639   char *key;
 640   xbt_dict_cursor_t cursor = NULL;
 641   AS_t rc_child;
 642   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 643     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 644     if (onelink_child)
 645       xbt_dynar_merge(&ret,&onelink_child);
 646   }
 647   return ret;
 648 }
 649
 650 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 651 {
 652   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
 653   if (rc)
 654     return rc->getRcType();
 655
 656   return SURF_NETWORK_ELEMENT_NULL;
 657 }
 658
 659 /**
 660  * \brief Generic method: create the global routing schema
 661  *
 662  * Make a global routing structure and set all the parsing functions.
 663  */
 664 void routing_model_create( void *loopback)
 665 {
 666   /* config the uniq global routing */
 667   routing_platf = new RoutingPlatf();
 668   routing_platf->p_root = NULL;
 669   routing_platf->p_loopback = loopback;
 670   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 671   /* no current routing at moment */
 672   current_routing = NULL;
 673 }
 674
 675
 676 /* ************************************************** */
 677 /* ********** PATERN FOR NEW ROUTING **************** */
 678
 679 /* The minimal configuration of a new routing model need the next functions,
 680  * also you need to set at the start of the file, the new model in the model
 681  * list. Remember keep the null ending of the list.
 682  */
 683 /*** Routing model structure ***/
 684 // typedef struct {
 685 //   s_routing_component_t generic_routing;
 686 //   /* things that your routing model need */
 687 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 688
 689 /*** Parse routing model functions ***/
 690 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 691 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 692 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 693 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 694 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 695
 696 /*** Business methods ***/
 697 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 698 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 699 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 700
 701 /*** Creation routing model functions ***/
 702 // static void* model_NEW_create(void) {
 703 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 704 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 705 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 706 //   new_component->generic_routing.set_route = model_NEW_set_route;
 707 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 708 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 709 //   new_component->generic_routing.get_route = NEW_get_route;
 710 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 711 //   new_component->generic_routing.finalize = NEW_finalize;
 712 //   /* initialization of internal structures */
 713 //   return new_component;
 714 // } /* mandatory */
 715 // static void  model_NEW_load(void) {}   /* mandatory */
 716 // static void  model_NEW_unload(void) {} /* mandatory */
 717 // static void  model_NEW_end(void) {}    /* mandatory */
 718
 719 /* ************************************************************************** */
 720 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 721
 722 void routing_cluster_add_backbone(void* bb) {
 723   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 724         "You have to be in model Cluster to use tag backbone!");
 725   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
 726   surf_as_cluster_set_backbone(current_routing, bb);
 727   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 728 }
 729
 730 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 731 {
 732   int start, end, i;
 733   char *groups , *host_id , *link_id = NULL;
 734   unsigned int iter;
 735   xbt_dynar_t radical_elements;
 736   xbt_dynar_t radical_ends;
 737
 738   //Make all hosts
 739   radical_elements = xbt_str_split(cabinet->radical, ",");
 740   xbt_dynar_foreach(radical_elements, iter, groups) {
 741
 742     radical_ends = xbt_str_split(groups, "-");
 743     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 744
 745     switch (xbt_dynar_length(radical_ends)) {
 746     case 1:
 747       end = start;
 748       break;
 749     case 2:
 750       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 751       break;
 752     default:
 753       surf_parse_error("Malformed radical");
 754       break;
 755     }
 756     s_sg_platf_host_cbarg_t host;
 757     memset(&host, 0, sizeof(host));
 758     host.initial_state = SURF_RESOURCE_ON;
 759     host.pstate = 0;
 760     host.power_scale = 1.0;
 761     host.core_amount = 1;
 762
 763     s_sg_platf_link_cbarg_t link;
 764     memset(&link, 0, sizeof(link));
 765     link.state = SURF_RESOURCE_ON;
 766     link.policy = SURF_LINK_FULLDUPLEX;
 767     link.latency = cabinet->lat;
 768     link.bandwidth = cabinet->bw;
 769
 770     s_sg_platf_host_link_cbarg_t host_link;
 771     memset(&host_link, 0, sizeof(host_link));
 772
 773     for (i = start; i <= end; i++) {
 774       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 775       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 776       host.id = host_id;
 777       link.id = link_id;
 778       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 779       xbt_dynar_push(power_state_list,&cabinet->power);
 780       host.power_peak = power_state_list;
 781       sg_platf_new_host(&host);
 782       sg_platf_new_link(&link);
 783
 784       char* link_up = bprintf("%s_UP",link_id);
 785       char* link_down = bprintf("%s_DOWN",link_id);
 786       host_link.id = host_id;
 787       host_link.link_up = link_up;
 788       host_link.link_down= link_down;
 789       sg_platf_new_host_link(&host_link);
 790
 791       free(host_id);
 792       free(link_id);
 793       free(link_up);
 794       free(link_down);
 795     }
 796
 797     xbt_dynar_free(&radical_ends);
 798   }
 799   xbt_dynar_free(&radical_elements);
 800 }
 801
 802 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 803 {
 804   char *host_id, *groups, *link_id = NULL;
 805   xbt_dict_t patterns = NULL;
 806   int rankId=0;
 807
 808   s_sg_platf_host_cbarg_t host;
 809   s_sg_platf_link_cbarg_t link;
 810
 811   unsigned int iter;
 812   int start, end, i;
 813   xbt_dynar_t radical_elements;
 814   xbt_dynar_t radical_ends;
 815
 816   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 817       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 818     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 819     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 820     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 821     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 822   }
 823
 824   /* parse the topology attribute. If we are not in a flat cluster,
 825    * switch to the right mode and initialize the routing with
 826    * the parameters in topo_parameters attribute
 827    */
 828   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 829   AS.id = cluster->id;
 830
 831   if(cluster->topology == SURF_CLUSTER_TORUS){
 832     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 833     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 834     sg_platf_new_AS_begin(&AS);
 835     ((AsClusterTorusPtr)current_routing)->parse_specific_arguments(cluster);
 836   }else{
 837     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 838     AS.routing = A_surfxml_AS_routing_Cluster;
 839     sg_platf_new_AS_begin(&AS);
 840   }
 841
 842   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 843       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 844       ((AsClusterPtr)current_routing)->p_has_loopback=1;
 845   }
 846
 847   if(cluster->limiter_link!=0){
 848       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 849       ((AsClusterPtr)current_routing)->p_has_limiter=1;
 850   }
 851
 852
 853
 854   current_routing->p_linkUpDownList
 855             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 856
 857   //Make all hosts
 858   radical_elements = xbt_str_split(cluster->radical, ",");
 859   xbt_dynar_foreach(radical_elements, iter, groups) {
 860
 861     radical_ends = xbt_str_split(groups, "-");
 862     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 863
 864     switch (xbt_dynar_length(radical_ends)) {
 865     case 1:
 866       end = start;
 867       break;
 868     case 2:
 869       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 870       break;
 871     default:
 872       surf_parse_error("Malformed radical");
 873       break;
 874     }
 875     for (i = start; i <= end; i++) {
 876       host_id =
 877           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 878       link_id = bprintf("%s_link_%d", cluster->id, i);
 879
 880       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 881
 882       memset(&host, 0, sizeof(host));
 883       host.id = host_id;
 884       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 885         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 886         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 887         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 888         host.power_trace = tmgr_trace_new_from_file(avail_file);
 889         xbt_free(avail_file);
 890       } else {
 891         XBT_DEBUG("\tavailability_file=\"\"");
 892       }
 893
 894       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 895         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 896         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 897         host.state_trace = tmgr_trace_new_from_file(avail_file);
 898         xbt_free(avail_file);
 899       } else {
 900         XBT_DEBUG("\tstate_file=\"\"");
 901       }
 902
 903       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 904       xbt_dynar_push(power_state_list,&cluster->power);
 905       host.power_peak = power_state_list;
 906       host.pstate = 0;
 907
 908       //host.power_peak = cluster->power;
 909       host.power_scale = 1.0;
 910       host.core_amount = cluster->core_amount;
 911       host.initial_state = SURF_RESOURCE_ON;
 912       host.coord = "";
 913       sg_platf_new_host(&host);
 914       XBT_DEBUG("</host>");
 915
 916       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 917                 cluster->bw, cluster->lat);
 918
 919
 920       s_surf_parsing_link_up_down_t info_lim, info_loop;
 921       // All links are saved in a matrix;
 922       // every row describes a single node; every node
 923       // may have multiple links.
 924       // the first column may store a link from x to x if p_has_loopback is set
 925       // the second column may store a limiter link if p_has_limiter is set
 926       // other columns are to store one or more link for the node
 927
 928       //add a loopback link
 929       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 930         char *tmp_link = bprintf("%s_loopback", link_id);
 931         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 932                 cluster->limiter_link);
 933
 934
 935         memset(&link, 0, sizeof(link));
 936         link.id = tmp_link;
 937         link.bandwidth = cluster->loopback_bw;
 938         link.latency = cluster->loopback_lat;
 939         link.state = SURF_RESOURCE_ON;
 940         link.policy = SURF_LINK_FATPIPE;
 941         sg_platf_new_link(&link);
 942         info_loop.link_up =
 943             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 944         info_loop.link_down = info_loop.link_up;
 945         free(tmp_link);
 946         xbt_dynar_set(current_routing->p_linkUpDownList, rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node, &info_loop);
 947       }
 948
 949       //add a limiter link (shared link to account for maximal bandwidth of the node)
 950       if(cluster->limiter_link!=0){
 951         char *tmp_link = bprintf("%s_limiter", link_id);
 952         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 953                 cluster->limiter_link);
 954
 955
 956         memset(&link, 0, sizeof(link));
 957         link.id = tmp_link;
 958         link.bandwidth = cluster->limiter_link;
 959         link.latency = 0;
 960         link.state = SURF_RESOURCE_ON;
 961         link.policy = SURF_LINK_SHARED;
 962         sg_platf_new_link(&link);
 963         info_lim.link_up =
 964             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 965         info_lim.link_down = info_lim.link_up;
 966         free(tmp_link);
 967         xbt_dynar_set(current_routing->p_linkUpDownList,
 968             rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node + ((AsClusterPtr)current_routing)->p_has_loopback ,
 969             &info_lim);
 970
 971       }
 972
 973
 974       //call the cluster function that adds the others links
 975
 976       ((AsClusterPtr)current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 977           ((AsClusterPtr)current_routing)->p_nb_links_per_node
 978           + ((AsClusterPtr)current_routing)->p_has_loopback
 979           + ((AsClusterPtr)current_routing)->p_has_limiter );
 980
 981       xbt_free(link_id);
 982       xbt_free(host_id);
 983       rankId++;
 984     }
 985
 986     xbt_dynar_free(&radical_ends);
 987   }
 988   xbt_dynar_free(&radical_elements);
 989
 990   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 991   // and it's very useful to connect clusters together
 992   XBT_DEBUG(" ");
 993   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 994   char *newid = NULL;
 995   s_sg_platf_router_cbarg_t router;
 996   memset(&router, 0, sizeof(router));
 997   router.id = cluster->router_id;
 998   router.coord = "";
 999   if (!router.id || !strcmp(router.id, ""))
1000     router.id = newid =
1001         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
1002                 cluster->suffix);
1003   sg_platf_new_router(&router);
1004   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1005   free(newid);
1006
1007   //Make the backbone
1008   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
1009     char *link_backbone = bprintf("%s_backbone", cluster->id);
1010     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1011               cluster->bb_bw, cluster->bb_lat);
1012
1013     memset(&link, 0, sizeof(link));
1014     link.id = link_backbone;
1015     link.bandwidth = cluster->bb_bw;
1016     link.latency = cluster->bb_lat;
1017     link.state = SURF_RESOURCE_ON;
1018     link.policy = cluster->bb_sharing_policy;
1019
1020     sg_platf_new_link(&link);
1021
1022     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
1023
1024     free(link_backbone);
1025   }
1026
1027   XBT_DEBUG("</AS>");
1028   sg_platf_new_AS_end();
1029   XBT_DEBUG(" ");
1030   xbt_dict_free(&patterns); // no op if it were never set
1031 }
1032
1033 static void routing_parse_postparse(void) {
1034   xbt_dict_free(&random_value);
1035 }
1036
1037 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1038 {
1039   char *host_id = NULL;
1040   char *link_id = NULL;
1041   char *router_id = NULL;
1042
1043   XBT_DEBUG(" ");
1044   host_id = HOST_PEER(peer->id);
1045   link_id = LINK_PEER(peer->id);
1046   router_id = ROUTER_PEER(peer->id);
1047
1048   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1049   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1050   AS.id = peer->id;
1051   AS.routing = A_surfxml_AS_routing_Cluster;
1052   sg_platf_new_AS_begin(&AS);
1053
1054   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1055
1056   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1057   s_sg_platf_host_cbarg_t host;
1058   memset(&host, 0, sizeof(host));
1059   host.initial_state = SURF_RESOURCE_ON;
1060   host.id = host_id;
1061
1062   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1063   xbt_dynar_push(power_state_list,&peer->power);
1064   host.power_peak = power_state_list;
1065   host.pstate = 0;
1066   //host.power_peak = peer->power;
1067   host.power_scale = 1.0;
1068   host.power_trace = peer->availability_trace;
1069   host.state_trace = peer->state_trace;
1070   host.core_amount = 1;
1071   sg_platf_new_host(&host);
1072
1073   s_sg_platf_link_cbarg_t link;
1074   memset(&link, 0, sizeof(link));
1075   link.state = SURF_RESOURCE_ON;
1076   link.policy = SURF_LINK_SHARED;
1077   link.latency = peer->lat;
1078
1079   char* link_up = bprintf("%s_UP",link_id);
1080   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1081             peer->bw_out, peer->lat);
1082   link.id = link_up;
1083   link.bandwidth = peer->bw_out;
1084   sg_platf_new_link(&link);
1085
1086   char* link_down = bprintf("%s_DOWN",link_id);
1087   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1088             peer->bw_in, peer->lat);
1089   link.id = link_down;
1090   link.bandwidth = peer->bw_in;
1091   sg_platf_new_link(&link);
1092
1093   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1094   s_sg_platf_host_link_cbarg_t host_link;
1095   memset(&host_link, 0, sizeof(host_link));
1096   host_link.id = host_id;
1097   host_link.link_up = link_up;
1098   host_link.link_down= link_down;
1099   sg_platf_new_host_link(&host_link);
1100
1101   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1102   s_sg_platf_router_cbarg_t router;
1103   memset(&router, 0, sizeof(router));
1104   router.id = router_id;
1105   router.coord = peer->coord;
1106   sg_platf_new_router(&router);
1107   static_cast<AsClusterPtr>(current_routing)->p_router = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1108
1109   XBT_DEBUG("</AS>");
1110   sg_platf_new_AS_end();
1111   XBT_DEBUG(" ");
1112
1113   //xbt_dynar_free(&tab_elements_num);
1114   free(router_id);
1115   free(host_id);
1116   free(link_id);
1117   free(link_up);
1118   free(link_down);
1119 }
1120
1121 // static void routing_parse_Srandom(void)
1122 // {
1123 //   double mean, std, min, max, seed;
1124 //   char *random_id = A_surfxml_random_id;
1125 //   char *random_radical = A_surfxml_random_radical;
1126 //   char *rd_name = NULL;
1127 //   char *rd_value;
1128 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1129 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1130 //   min = surf_parse_get_double(A_surfxml_random_min);
1131 //   max = surf_parse_get_double(A_surfxml_random_max);
1132 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1133
1134 //   double res = 0;
1135 //   int i = 0;
1136 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1137 //   char *tmpbuf;
1138
1139 //   xbt_dynar_t radical_elements;
1140 //   unsigned int iter;
1141 //   char *groups;
1142 //   int start, end;
1143 //   xbt_dynar_t radical_ends;
1144
1145 //   switch (A_surfxml_random_generator) {
1146 //   case AU_surfxml_random_generator:
1147 //   case A_surfxml_random_generator_NONE:
1148 //     random->generator = NONE;
1149 //     break;
1150 //   case A_surfxml_random_generator_DRAND48:
1151 //     random->generator = DRAND48;
1152 //     break;
1153 //   case A_surfxml_random_generator_RAND:
1154 //     random->generator = RAND;
1155 //     break;
1156 //   case A_surfxml_random_generator_RNGSTREAM:
1157 //     random->generator = RNGSTREAM;
1158 //     break;
1159 //   default:
1160 //     surf_parse_error("Invalid random generator");
1161 //     break;
1162 //   }
1163 //   random->seed = seed;
1164 //   random->min = min;
1165 //   random->max = max;
1166
1167 //   /* Check user stupidities */
1168 //   if (max < min)
1169 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1170 //   if (mean < min)
1171 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1172 //   if (mean > max)
1173 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1174
1175 //   /* normalize the mean and standard deviation before storing */
1176 //   random->mean = (mean - min) / (max - min);
1177 //   random->std = std / (max - min);
1178
1179 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1180 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1181 //            random->mean, random->std);
1182
1183 //   XBT_DEBUG
1184 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1185 //        random_id, random->min, random->max, random->mean, random->std,
1186 //        (int)random->generator, random->seed, random_radical);
1187
1188 //   if (!random_value)
1189 //     random_value = xbt_dict_new_homogeneous(free);
1190
1191 //   if (!strcmp(random_radical, "")) {
1192 //     res = random_generate(random);
1193 //     rd_value = bprintf("%f", res);
1194 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1195 //   } else {
1196 //     radical_elements = xbt_str_split(random_radical, ",");
1197 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1198 //       radical_ends = xbt_str_split(groups, "-");
1199 //       switch (xbt_dynar_length(radical_ends)) {
1200 //       case 1:
1201 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1202 //                    "Custom Random '%s' already exists !", random_id);
1203 //         res = random_generate(random);
1204 //         tmpbuf =
1205 //             bprintf("%s%d", random_id,
1206 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1207 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1208 //         xbt_free(tmpbuf);
1209 //         break;
1210
1211 //       case 2:
1212 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1213 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1214 //         for (i = start; i <= end; i++) {
1215 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1216 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1217 //                                                                     random_id,
1218 //                                                                     i));
1219 //           res = random_generate(random);
1220 //           tmpbuf = bprintf("%s%d", random_id, i);
1221 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1222 //           xbt_free(tmpbuf);
1223 //         }
1224 //         break;
1225 //       default:
1226 //         XBT_CRITICAL("Malformed radical");
1227 //         break;
1228 //       }
1229 //       res = random_generate(random);
1230 //       rd_name = bprintf("%s_router", random_id);
1231 //       rd_value = bprintf("%f", res);
1232 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1233
1234 //       xbt_dynar_free(&radical_ends);
1235 //     }
1236 //     free(rd_name);
1237 //     xbt_dynar_free(&radical_elements);
1238 //   }
1239 // }
1240
1241 void routing_register_callbacks()
1242 {
1243   sg_platf_host_add_cb(parse_S_host);
1244   sg_platf_router_add_cb(parse_S_router);
1245   sg_platf_host_link_add_cb(parse_S_host_link);
1246   sg_platf_route_add_cb(parse_E_route);
1247   sg_platf_ASroute_add_cb(parse_E_ASroute);
1248   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1249   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1250
1251   sg_platf_cluster_add_cb(routing_parse_cluster);
1252   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1253
1254   sg_platf_peer_add_cb(routing_parse_peer);
1255   sg_platf_postparse_add_cb(routing_parse_postparse);
1256
1257   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1258   sg_platf_AS_end_add_cb(routing_AS_end);
1259   sg_platf_AS_begin_add_cb(routing_AS_begin);
1260
1261   sg_platf_trace_add_cb(routing_parse_trace);
1262   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1263
1264 #ifdef HAVE_TRACING
1265   instr_routing_define_callbacks();
1266 #endif
1267 }
1268
1269 /**
1270  * \brief Recursive function for finalize
1271  *
1272  * \param rc the source host name
1273  *
1274  * This fuction is call by "finalize". It allow to finalize the
1275  * AS or routing components. It delete all the structures.
1276  */
1277 static void finalize_rec(AsPtr as) {
1278   xbt_dict_cursor_t cursor = NULL;
1279   char *key;
1280   AS_t elem;
1281
1282   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1283     finalize_rec(elem);
1284   }
1285
1286   delete as;;
1287 }
1288
1289 /** \brief Frees all memory allocated by the routing module */
1290 void routing_exit(void) {
1291   delete routing_platf;
1292 }
1293
1294 RoutingPlatf::~RoutingPlatf()
1295 {
1296         xbt_dynar_free(&p_lastRoute);
1297         finalize_rec(p_root);
1298 }
1299
1300 AS_t surf_AS_get_routing_root() {
1301   return routing_platf->p_root;
1302 }
1303
1304 const char *surf_AS_get_name(AsPtr as) {
1305   return as->p_name;
1306 }
1307
1308 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1309   return as->p_routingSons;
1310 }
1311
1312 const char *surf_AS_get_model(AsPtr as) {
1313   return as->p_modelDesc->name;
1314 }
1315
1316 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1317   xbt_dynar_t elms = as->p_indexNetworkElm;
1318   sg_routing_edge_t relm;
1319   xbt_dictelm_t delm;
1320   int index;
1321   int count = xbt_dynar_length(elms);
1322   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1323   for (index = 0; index < count; index++) {
1324      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1325      delm = xbt_lib_get_elm_or_null(host_lib, relm->getName());
1326      if (delm!=NULL) {
1327        xbt_dynar_push(res, &delm);
1328      }
1329   }
1330   return res;
1331 }
1332
1333 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1334   as->getGraph(graph, nodes, edges);
1335 }
1336