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 #include "surf_routing_cluster_fat_tree.hpp"
  12
  13 #include "simgrid/platf_interface.h"    // platform creation API internal interface
  14 #include "simgrid/sg_config.h"
  15 #include "storage_interface.hpp"
  16
  17 #include "surf/surfxml_parse_values.h"
  18
  19
  20 /**
  21  * @ingroup SURF_build_api
  22  * @brief A library containing all known hosts
  23  */
  24 xbt_lib_t host_lib;
  25
  26 int SURF_HOST_LEVEL;            //Surf host level
  27 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  28 int MSG_STORAGE_LEVEL;          //Msg storage level
  29 int MSG_FILE_LEVEL;             //Msg file level
  30 int SD_STORAGE_LEVEL;           //Simdag storage level
  31 int COORD_HOST_LEVEL=0;         //Coordinates level
  32 int NS3_HOST_LEVEL;             //host node for ns3
  33
  34 xbt_lib_t as_router_lib;
  35 int ROUTING_ASR_LEVEL;          //Routing level
  36 int COORD_ASR_LEVEL;            //Coordinates level
  37 int NS3_ASR_LEVEL;              //host node for ns3
  38 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  39
  40 static xbt_dict_t random_value = NULL;
  41
  42
  43 /** @brief Retrieve a routing edge from its name
  44  *
  45  * Routing edges are either host and routers, whatever
  46  */
  47 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
  48   sg_host_t h = sg_host_by_name(name);
  49   RoutingEdgePtr net_elm = h==NULL?NULL: sg_host_edge(h);
  50   if (!net_elm)
  51         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  52   return net_elm;
  53 }
  54
  55 /* Global vars */
  56 RoutingPlatfPtr routing_platf = NULL;
  57 AsPtr current_routing = NULL;
  58
  59 /* global parse functions */
  60 extern xbt_dynar_t mount_list;
  61
  62 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  63
  64 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  65 // static void routing_parse_Srandom(void);        /* random bypass */
  66
  67 static void routing_parse_postparse(void);
  68
  69 /* this lines are only for replace use like index in the model table */
  70 typedef enum {
  71   SURF_MODEL_FULL = 0,
  72   SURF_MODEL_FLOYD,
  73   SURF_MODEL_DIJKSTRA,
  74   SURF_MODEL_DIJKSTRACACHE,
  75   SURF_MODEL_NONE,
  76   SURF_MODEL_VIVALDI,
  77   SURF_MODEL_CLUSTER,
  78   SURF_MODEL_TORUS_CLUSTER,
  79   SURF_MODEL_FAT_TREE_CLUSTER,
  80 } e_routing_types;
  81
  82 struct s_model_type routing_models[] = {
  83   {"Full",
  84    "Full routing data (fast, large memory requirements, fully expressive)",
  85    model_full_create, model_full_end},
  86   {"Floyd",
  87    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  88    model_floyd_create, model_floyd_end},
  89   {"Dijkstra",
  90    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  91    model_dijkstra_create, model_dijkstra_both_end},
  92   {"DijkstraCache",
  93    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  94    model_dijkstracache_create, model_dijkstra_both_end},
  95   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
  96    model_none_create,  NULL},
  97   {"Vivaldi", "Vivaldi routing",
  98    model_vivaldi_create, NULL},
  99   {"Cluster", "Cluster routing",
 100    model_cluster_create, NULL},
 101   {"Torus_Cluster", "Torus Cluster routing",
 102    model_torus_cluster_create, NULL},
 103   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
 104    model_fat_tree_cluster_create, NULL},
 105   {NULL, NULL, NULL, NULL}
 106 };
 107
 108 /**
 109  * \brief Add a "host_link" to the network element list
 110  */
 111 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
 112 {
 113   RoutingEdgePtr info = sg_host_edge(sg_host_by_name(host->id));
 114   xbt_assert(info, "Host '%s' not found!", host->id);
 115   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 116       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 117       "You have to be in model Cluster to use tag host_link!");
 118
 119   s_surf_parsing_link_up_down_t link_up_down;
 120   link_up_down.link_up = Link::byName(host->link_up);
 121   link_up_down.link_down = Link::byName(host->link_down);
 122
 123   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 124   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 125
 126   if(!current_routing->p_linkUpDownList)
 127     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 128
 129   // If dynar is is greater than edge id and if the host_link is already defined
 130   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
 131       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
 132         surf_parse_error("Host_link for '%s' is already defined!",host->id);
 133
 134   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
 135   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
 136 }
 137
 138 /**
 139  * \brief Add a "host" to the network element list
 140  */
 141 static void parse_S_host(sg_platf_host_cbarg_t host)
 142 {
 143   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 144     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 145   xbt_assert(!sg_host_by_name(host->id),
 146                      "Reading a host, processing unit \"%s\" already exists", host->id);
 147
 148   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(host->id),
 149                                                     -1,
 150                                                     SURF_NETWORK_ELEMENT_HOST,
 151                                                     current_routing);
 152   info->setId(current_routing->parsePU(info));
 153   sg_host_edge_set(sg_host_by_name_or_create(host->id), info);
 154   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->getId());
 155
 156   if(mount_list){
 157     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 158     mount_list = NULL;
 159   }
 160
 161   if (host->coord && strcmp(host->coord, "")) {
 162     unsigned int cursor;
 163     char*str;
 164
 165     if (!COORD_HOST_LEVEL)
 166       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 167     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 168     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 169     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 170     xbt_dynar_foreach(ctn_str,cursor, str) {
 171       double val = atof(str);
 172       xbt_dynar_push(ctn,&val);
 173     }
 174     xbt_dynar_shrink(ctn, 0);
 175     xbt_dynar_free(&ctn_str);
 176     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 177     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 178   }
 179 }
 180
 181 /**
 182  * \brief Add a "router" to the network element list
 183  */
 184 static void parse_S_router(sg_platf_router_cbarg_t router)
 185 {
 186   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 187     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 188   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 189              "Reading a router, processing unit \"%s\" already exists",
 190              router->id);
 191
 192   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(router->id),
 193                                             -1,
 194                                             SURF_NETWORK_ELEMENT_ROUTER,
 195                                             current_routing);
 196   info->setId(current_routing->parsePU(info));
 197   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 198   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 199
 200   if (router->coord && strcmp(router->coord, "")) {
 201     unsigned int cursor;
 202     char*str;
 203
 204     if (!COORD_ASR_LEVEL)
 205       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 206     /* Pre-parse the host coordinates */
 207     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 208     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 209     xbt_dynar_foreach(ctn_str,cursor, str) {
 210       double val = atof(str);
 211       xbt_dynar_push(ctn,&val);
 212     }
 213     xbt_dynar_shrink(ctn, 0);
 214     xbt_dynar_free(&ctn_str);
 215     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 216     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 217   }
 218 }
 219
 220 /**
 221  * \brief Store the route by calling the set_route function of the current routing component
 222  */
 223 static void parse_E_route(sg_platf_route_cbarg_t route)
 224 {
 225   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
 226              "no defined method \"set_route\" in \"%s\"",
 227              current_routing->name);*/
 228
 229   current_routing->parseRoute(route);
 230 }
 231
 232 /**
 233  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 234  */
 235 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 236 {
 237   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
 238              "no defined method \"set_ASroute\" in \"%s\"",
 239              current_routing->name);*/
 240   current_routing->parseASroute(ASroute);
 241 }
 242
 243 /**
 244  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 245  */
 246 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 247 {
 248   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 249              "Bypassing mechanism not implemented by routing '%s'",
 250              current_routing->name);*/
 251
 252   current_routing->parseBypassroute(route);
 253 }
 254
 255 /**
 256  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 257  */
 258 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
 259 {
 260   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 261              "Bypassing mechanism not implemented by routing '%s'",
 262              current_routing->name);*/
 263   current_routing->parseBypassroute(ASroute);
 264 }
 265
 266 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 267 {
 268   tmgr_trace_t tmgr_trace;
 269   if (!trace->file || strcmp(trace->file, "") != 0) {
 270     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 271   } else if (strcmp(trace->pc_data, "") == 0) {
 272     tmgr_trace = NULL;
 273   } else {
 274     tmgr_trace =
 275           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 276                                      trace->periodicity);
 277   }
 278   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 279 }
 280
 281 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 282 {
 283   xbt_assert(xbt_dict_get_or_null
 284               (traces_set_list, trace_connect->trace),
 285               "Cannot connect trace %s to %s: trace unknown",
 286               trace_connect->trace,
 287               trace_connect->element);
 288
 289   switch (trace_connect->kind) {
 290   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 291     xbt_dict_set(trace_connect_list_host_avail,
 292         trace_connect->trace,
 293         xbt_strdup(trace_connect->element), NULL);
 294     break;
 295   case SURF_TRACE_CONNECT_KIND_POWER:
 296     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 297         xbt_strdup(trace_connect->element), NULL);
 298     break;
 299   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 300     xbt_dict_set(trace_connect_list_link_avail,
 301         trace_connect->trace,
 302         xbt_strdup(trace_connect->element), NULL);
 303     break;
 304   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 305     xbt_dict_set(trace_connect_list_bandwidth,
 306         trace_connect->trace,
 307         xbt_strdup(trace_connect->element), NULL);
 308     break;
 309   case SURF_TRACE_CONNECT_KIND_LATENCY:
 310     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 311         xbt_strdup(trace_connect->element), NULL);
 312     break;
 313   default:
 314         surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 315         trace_connect->trace, trace_connect->element);
 316     break;
 317   }
 318 }
 319
 320 /**
 321  * \brief Make a new routing component to the platform
 322  *
 323  * Add a new autonomous system to the platform. Any elements (such as host,
 324  * router or sub-AS) added after this call and before the corresponding call
 325  * to sg_platf_new_AS_close() will be added to this AS.
 326  *
 327  * Once this function was called, the configuration concerning the used
 328  * models cannot be changed anymore.
 329  *
 330  * @param AS_id name of this autonomous system. Must be unique in the platform
 331  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 332  */
 333 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 334 {
 335   XBT_DEBUG("routing_AS_begin");
 336   routing_model_description_t model = NULL;
 337
 338   xbt_assert(!xbt_lib_get_or_null
 339              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 340              "The AS \"%s\" already exists", AS->id);
 341
 342   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 343                             * controlling the level of configuration to prevent
 344                             * any further config */
 345
 346   /* search the routing model */
 347   switch(AS->routing){
 348     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
 349     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 350     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 351     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 352     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 353     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 354     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 355     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 356     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 357     default: xbt_die("Not a valid model!!!");
 358     break;
 359   }
 360
 361   /* make a new routing component */
 362   AsPtr new_as = model->create();
 363
 364   new_as->p_modelDesc = model;
 365   new_as->p_hierarchy = SURF_ROUTING_NULL;
 366   new_as->p_name = xbt_strdup(AS->id);
 367
 368   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(new_as->p_name),
 369                                             -1,
 370                                             SURF_NETWORK_ELEMENT_AS,
 371                                             current_routing);
 372   if (current_routing == NULL && routing_platf->p_root == NULL) {
 373
 374     /* it is the first one */
 375     new_as->p_routingFather = NULL;
 376     routing_platf->p_root = new_as;
 377     info->setId(-1);
 378   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 379
 380     xbt_assert(!xbt_dict_get_or_null
 381                (current_routing->p_routingSons, AS->id),
 382                "The AS \"%s\" already exists", AS->id);
 383     /* it is a part of the tree */
 384     new_as->p_routingFather = current_routing;
 385     /* set the father behavior */
 386     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 387       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 388     /* add to the sons dictionary */
 389     xbt_dict_set(current_routing->p_routingSons, AS->id,
 390                  (void *) new_as, NULL);
 391     /* add to the father element list */
 392     info->setId(current_routing->parseAS(info));
 393   } else {
 394     THROWF(arg_error, 0, "All defined components must belong to a AS");
 395   }
 396
 397   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 398               (void *) info);
 399   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 400
 401   /* set the new current component of the tree */
 402   current_routing = new_as;
 403   current_routing->p_netElem = info;
 404
 405 }
 406
 407 /**
 408  * \brief Specify that the current description of AS is finished
 409  *
 410  * Once you've declared all the content of your AS, you have to close
 411  * it with this call. Your AS is not usable until you call this function.
 412  *
 413  * @fixme: this call is not as robust as wanted: bad things WILL happen
 414  * if you call it twice for the same AS, or if you forget calling it, or
 415  * even if you add stuff to a closed AS
 416  *
 417  */
 418 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
 419 {
 420
 421   if (current_routing == NULL) {
 422     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 423   } else {
 424     if (current_routing->p_modelDesc->end)
 425       current_routing->p_modelDesc->end(current_routing);
 426     current_routing = current_routing->p_routingFather;
 427   }
 428 }
 429
 430 /* Aux Business methods */
 431
 432 /**
 433  * \brief Get the AS father and the first elements of the chain
 434  *
 435  * \param src the source host name
 436  * \param dst the destination host name
 437  *
 438  * Get the common father of the to processing units, and the first different
 439  * father in the chain
 440  */
 441 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 442                             AS_t * res_father,
 443                             AS_t * res_src,
 444                             AS_t * res_dst)
 445 {
 446   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 447 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 448   AsPtr src_as, dst_as;
 449   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
 450   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
 451   int index_src = 0;
 452   int index_dst = 0;
 453   AsPtr current;
 454   AsPtr current_src;
 455   AsPtr current_dst;
 456   AsPtr father;
 457
 458   /* (1) find the as where the src and dst are located */
 459   sg_routing_edge_t src_data = src;
 460   sg_routing_edge_t dst_data = dst;
 461   src_as = src_data->getRcComponent();
 462   dst_as = dst_data->getRcComponent();
 463 #ifndef NDEBUG
 464   char* src_name = src_data->getName();
 465   char* dst_name = dst_data->getName();
 466 #endif
 467
 468   xbt_assert(src_as && dst_as,
 469              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 470
 471   /* (2) find the path to the root routing component */
 472   for (current = src_as; current != NULL; current = current->p_routingFather) {
 473     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 474       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 475     path_src[index_src++] = current;
 476   }
 477   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 478     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 479       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 480     path_dst[index_dst++] = current;
 481   }
 482
 483   /* (3) find the common father */
 484   do {
 485     current_src = path_src[--index_src];
 486     current_dst = path_dst[--index_dst];
 487   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 488
 489   /* (4) they are not in the same routing component, make the path */
 490   if (current_src == current_dst)
 491     father = current_src;
 492   else
 493     father = path_src[index_src + 1];
 494
 495   /* (5) result generation */
 496   *res_father = father;         /* first the common father of src and dst */
 497   *res_src = current_src;       /* second the first different father of src */
 498   *res_dst = current_dst;       /* three  the first different father of dst */
 499
 500 #undef ELEMENTS_FATHER_MAXDEPTH
 501 }
 502
 503 /* Global Business methods */
 504
 505 /**
 506  * \brief Recursive function for get_route_latency
 507  *
 508  * \param src the source host name
 509  * \param dst the destination host name
 510  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 511  * \param *latency the latency, if needed
 512  *
 513  * This function is called by "get_route" and "get_latency". It allows to walk
 514  * recursively through the ASes tree.
 515  */
 516 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
 517                                    xbt_dynar_t * links, double *latency)
 518 {
 519   s_sg_platf_route_cbarg_t route;
 520   memset(&route,0,sizeof(route));
 521
 522   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 523   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 524
 525   /* Find how src and dst are interconnected */
 526   AsPtr common_father, src_father, dst_father;
 527   elements_father(src, dst, &common_father, &src_father, &dst_father);
 528   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 529       common_father->p_name, src_father->p_name, dst_father->p_name);
 530
 531   /* Check whether a direct bypass is defined */
 532   sg_platf_route_cbarg_t e_route_bypass = NULL;
 533   //FIXME:REMOVE:if (common_father->get_bypass_route)
 534
 535   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 536
 537   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 538   if (e_route_bypass) {
 539     xbt_dynar_merge(links, &e_route_bypass->link_list);
 540     generic_free_route(e_route_bypass);
 541     return;
 542   }
 543
 544   /* If src and dst are in the same AS, life is good */
 545   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 546     route.link_list = *links;
 547     common_father->getRouteAndLatency(src, dst, &route, latency);
 548     // if vivaldi latency+=vivaldi(src,dst)
 549     return;
 550   }
 551
 552   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 553
 554   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 555   // Find the net_card corresponding to father
 556   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
 557   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
 558
 559   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 560                                     &route, latency);
 561
 562   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 563       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 564
 565   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 566   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 567
 568   /* If source gateway is not our source, we have to recursively find our way up to this point */
 569   if (src != src_gateway_net_elm)
 570     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 571   xbt_dynar_merge(links, &route.link_list);
 572
 573   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 574   if (dst_gateway_net_elm != dst)
 575     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 576
 577   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 578 }
 579
 580 AS_t surf_platf_get_root(routing_platf_t platf){
 581   return platf->p_root;
 582 }
 583
 584 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
 585   return edge->getRcType();
 586 }
 587
 588
 589 /**
 590  * \brief Find a route between hosts
 591  *
 592  * \param src the network_element_t for src host
 593  * \param dst the network_element_t for dst host
 594  * \param route where to store the list of links.
 595  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 596  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 597  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 598  * \pre route!=NULL
 599  *
 600  * walk through the routing components tree and find a route between hosts
 601  * by calling the differents "get_route" functions in each routing component.
 602  */
 603 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
 604                                    xbt_dynar_t* route, double *latency)
 605 {
 606   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 607   if (!*route) {
 608     xbt_dynar_reset(routing_platf->p_lastRoute);
 609     *route = routing_platf->p_lastRoute;
 610   }
 611
 612   _get_route_and_latency(src, dst, route, latency);
 613
 614   xbt_assert(!latency || *latency >= 0.0,
 615              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 616 }
 617
 618 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 619   return recursiveGetOneLinkRoutes(p_root);
 620 }
 621
 622 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
 623 {
 624   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free_f);
 625
 626   //adding my one link routes
 627   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 628   if (onelink_mine)
 629     xbt_dynar_merge(&ret,&onelink_mine);
 630
 631   //recursing
 632   char *key;
 633   xbt_dict_cursor_t cursor = NULL;
 634   AS_t rc_child;
 635   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 636     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 637     if (onelink_child)
 638       xbt_dynar_merge(&ret,&onelink_child);
 639   }
 640   return ret;
 641 }
 642
 643 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 644 {
 645   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
 646   if (rc)
 647     return rc->getRcType();
 648
 649   return SURF_NETWORK_ELEMENT_NULL;
 650 }
 651
 652 /**
 653  * \brief Generic method: create the global routing schema
 654  *
 655  * Make a global routing structure and set all the parsing functions.
 656  */
 657 void routing_model_create( void *loopback)
 658 {
 659   /* config the uniq global routing */
 660   routing_platf = new RoutingPlatf();
 661   routing_platf->p_root = NULL;
 662   routing_platf->p_loopback = loopback;
 663   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 664   /* no current routing at moment */
 665   current_routing = NULL;
 666 }
 667
 668
 669 /* ************************************************** */
 670 /* ********** PATERN FOR NEW ROUTING **************** */
 671
 672 /* The minimal configuration of a new routing model need the next functions,
 673  * also you need to set at the start of the file, the new model in the model
 674  * list. Remember keep the null ending of the list.
 675  */
 676 /*** Routing model structure ***/
 677 // typedef struct {
 678 //   s_routing_component_t generic_routing;
 679 //   /* things that your routing model need */
 680 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 681
 682 /*** Parse routing model functions ***/
 683 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 684 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 685 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 686 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 687 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 688
 689 /*** Business methods ***/
 690 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 691 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 692 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 693
 694 /*** Creation routing model functions ***/
 695 // static void* model_NEW_create(void) {
 696 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 697 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 698 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 699 //   new_component->generic_routing.set_route = model_NEW_set_route;
 700 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 701 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 702 //   new_component->generic_routing.get_route = NEW_get_route;
 703 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 704 //   new_component->generic_routing.finalize = NEW_finalize;
 705 //   /* initialization of internal structures */
 706 //   return new_component;
 707 // } /* mandatory */
 708 // static void  model_NEW_load(void) {}   /* mandatory */
 709 // static void  model_NEW_unload(void) {} /* mandatory */
 710 // static void  model_NEW_end(void) {}    /* mandatory */
 711
 712 /* ************************************************************************** */
 713 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 714
 715 void routing_cluster_add_backbone(void* bb) {
 716   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 717         "You have to be in model Cluster to use tag backbone!");
 718   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
 719   surf_as_cluster_set_backbone(current_routing, bb);
 720   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 721 }
 722
 723 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 724 {
 725   int start, end, i;
 726   char *groups , *host_id , *link_id = NULL;
 727   unsigned int iter;
 728   xbt_dynar_t radical_elements;
 729   xbt_dynar_t radical_ends;
 730
 731   //Make all hosts
 732   radical_elements = xbt_str_split(cabinet->radical, ",");
 733   xbt_dynar_foreach(radical_elements, iter, groups) {
 734
 735     radical_ends = xbt_str_split(groups, "-");
 736     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 737
 738     switch (xbt_dynar_length(radical_ends)) {
 739     case 1:
 740       end = start;
 741       break;
 742     case 2:
 743       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 744       break;
 745     default:
 746       surf_parse_error("Malformed radical");
 747       break;
 748     }
 749     s_sg_platf_host_cbarg_t host;
 750     memset(&host, 0, sizeof(host));
 751     host.initial_state = SURF_RESOURCE_ON;
 752     host.pstate        = 0;
 753     host.power_scale   = 1.0;
 754     host.core_amount   = 1;
 755
 756     s_sg_platf_link_cbarg_t link;
 757     memset(&link, 0, sizeof(link));
 758     link.state     = SURF_RESOURCE_ON;
 759     link.policy    = SURF_LINK_FULLDUPLEX;
 760     link.latency   = cabinet->lat;
 761     link.bandwidth = cabinet->bw;
 762
 763     s_sg_platf_host_link_cbarg_t host_link;
 764     memset(&host_link, 0, sizeof(host_link));
 765
 766     for (i = start; i <= end; i++) {
 767       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 768       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 769       host.id                      = host_id;
 770       link.id                      = link_id;
 771       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 772       xbt_dynar_push(power_state_list,&cabinet->power);
 773       host.power_peak = power_state_list;
 774       sg_platf_new_host(&host);
 775       sg_platf_new_link(&link);
 776
 777       char* link_up       = bprintf("%s_UP",link_id);
 778       char* link_down     = bprintf("%s_DOWN",link_id);
 779       host_link.id        = host_id;
 780       host_link.link_up   = link_up;
 781       host_link.link_down = link_down;
 782       sg_platf_new_host_link(&host_link);
 783
 784       free(host_id);
 785       free(link_id);
 786       free(link_up);
 787       free(link_down);
 788     }
 789
 790     xbt_dynar_free(&radical_ends);
 791   }
 792   xbt_dynar_free(&radical_elements);
 793 }
 794
 795 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 796 {
 797   char *host_id, *groups, *link_id = NULL;
 798   xbt_dict_t patterns = NULL;
 799   int rankId=0;
 800
 801   s_sg_platf_host_cbarg_t host;
 802   s_sg_platf_link_cbarg_t link;
 803
 804   unsigned int iter;
 805   int start, end, i;
 806   xbt_dynar_t radical_elements;
 807   xbt_dynar_t radical_ends;
 808
 809   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 810       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 811     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 812     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 813     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 814     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 815   }
 816
 817   /* parse the topology attribute. If we are not in a flat cluster,
 818    * switch to the right mode and initialize the routing with
 819    * the parameters in topo_parameters attribute
 820    */
 821   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 822   AS.id = cluster->id;
 823
 824   if(cluster->topology == SURF_CLUSTER_TORUS){
 825     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 826     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 827     sg_platf_new_AS_begin(&AS);
 828     ((AsClusterTorusPtr)current_routing)->parse_specific_arguments(cluster);
 829   }
 830   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 831     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 832     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 833     sg_platf_new_AS_begin(&AS);
 834     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 835   }
 836
 837   else{
 838     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 839     AS.routing = A_surfxml_AS_routing_Cluster;
 840     sg_platf_new_AS_begin(&AS);
 841   }
 842
 843   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 844       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 845       ((AsClusterPtr)current_routing)->p_has_loopback=1;
 846   }
 847
 848   if(cluster->limiter_link!=0){
 849       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 850       ((AsClusterPtr)current_routing)->p_has_limiter=1;
 851   }
 852
 853
 854
 855   current_routing->p_linkUpDownList
 856             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 857
 858   //Make all hosts
 859   radical_elements = xbt_str_split(cluster->radical, ",");
 860   xbt_dynar_foreach(radical_elements, iter, groups) {
 861
 862     radical_ends = xbt_str_split(groups, "-");
 863     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 864
 865     switch (xbt_dynar_length(radical_ends)) {
 866     case 1:
 867       end = start;
 868       break;
 869     case 2:
 870       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 871       break;
 872     default:
 873       surf_parse_error("Malformed radical");
 874       break;
 875     }
 876     for (i = start; i <= end; i++) {
 877       host_id =
 878           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 879       link_id = bprintf("%s_link_%d", cluster->id, i);
 880
 881       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 882
 883       memset(&host, 0, sizeof(host));
 884       host.id = host_id;
 885       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 886           xbt_dict_cursor_t cursor=NULL;
 887           char *key,*data;
 888           host.properties = xbt_dict_new();
 889
 890           xbt_dict_foreach(cluster->properties,cursor,key,data) {
 891                   xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 892           }
 893       }
 894       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 895         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 896         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 897         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 898         host.power_trace = tmgr_trace_new_from_file(avail_file);
 899         xbt_free(avail_file);
 900       } else {
 901         XBT_DEBUG("\tavailability_file=\"\"");
 902       }
 903
 904       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 905         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 906         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 907         host.state_trace = tmgr_trace_new_from_file(avail_file);
 908         xbt_free(avail_file);
 909       } else {
 910         XBT_DEBUG("\tstate_file=\"\"");
 911       }
 912
 913       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 914       xbt_dynar_push(power_state_list,&cluster->power);
 915       host.power_peak = power_state_list;
 916       host.pstate = 0;
 917
 918       //host.power_peak = cluster->power;
 919       host.power_scale = 1.0;
 920       host.core_amount = cluster->core_amount;
 921       host.initial_state = SURF_RESOURCE_ON;
 922       host.coord = "";
 923       sg_platf_new_host(&host);
 924       XBT_DEBUG("</host>");
 925
 926       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 927                 cluster->bw, cluster->lat);
 928
 929
 930       s_surf_parsing_link_up_down_t info_lim, info_loop;
 931       // All links are saved in a matrix;
 932       // every row describes a single node; every node
 933       // may have multiple links.
 934       // the first column may store a link from x to x if p_has_loopback is set
 935       // the second column may store a limiter link if p_has_limiter is set
 936       // other columns are to store one or more link for the node
 937
 938       //add a loopback link
 939       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 940         char *tmp_link = bprintf("%s_loopback", link_id);
 941         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 942                 cluster->limiter_link);
 943
 944
 945         memset(&link, 0, sizeof(link));
 946         link.id        = tmp_link;
 947         link.bandwidth = cluster->loopback_bw;
 948         link.latency   = cluster->loopback_lat;
 949         link.state     = SURF_RESOURCE_ON;
 950         link.policy    = SURF_LINK_FATPIPE;
 951         sg_platf_new_link(&link);
 952         info_loop.link_up   = Link::byName(tmp_link);
 953         info_loop.link_down = info_loop.link_up;
 954         free(tmp_link);
 955         xbt_dynar_set(current_routing->p_linkUpDownList, rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node, &info_loop);
 956       }
 957
 958       //add a limiter link (shared link to account for maximal bandwidth of the node)
 959       if(cluster->limiter_link!=0){
 960         char *tmp_link = bprintf("%s_limiter", link_id);
 961         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 962                 cluster->limiter_link);
 963
 964
 965         memset(&link, 0, sizeof(link));
 966         link.id = tmp_link;
 967         link.bandwidth = cluster->limiter_link;
 968         link.latency = 0;
 969         link.state = SURF_RESOURCE_ON;
 970         link.policy = SURF_LINK_SHARED;
 971         sg_platf_new_link(&link);
 972         info_lim.link_up = Link::byName(tmp_link);
 973         info_lim.link_down = info_lim.link_up;
 974         free(tmp_link);
 975         xbt_dynar_set(current_routing->p_linkUpDownList,
 976             rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node + ((AsClusterPtr)current_routing)->p_has_loopback ,
 977             &info_lim);
 978
 979       }
 980
 981
 982       //call the cluster function that adds the others links
 983       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 984         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 985       }
 986       else {
 987       ((AsClusterPtr)current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 988           ((AsClusterPtr)current_routing)->p_nb_links_per_node
 989           + ((AsClusterPtr)current_routing)->p_has_loopback
 990           + ((AsClusterPtr)current_routing)->p_has_limiter );
 991       }
 992       xbt_free(link_id);
 993       xbt_free(host_id);
 994       rankId++;
 995     }
 996
 997     xbt_dynar_free(&radical_ends);
 998   }
 999   xbt_dynar_free(&radical_elements);
1000
1001   // For fat trees, the links must be created once all nodes have been added
1002   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
1003     ((AsClusterFatTree*)current_routing)->create_links();
1004   }
1005   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
1006   // and it's very useful to connect clusters together
1007   XBT_DEBUG(" ");
1008   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
1009   char *newid = NULL;
1010   s_sg_platf_router_cbarg_t router;
1011   memset(&router, 0, sizeof(router));
1012   router.id = cluster->router_id;
1013   router.coord = "";
1014   if (!router.id || !strcmp(router.id, ""))
1015     router.id = newid =
1016         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
1017                 cluster->suffix);
1018   sg_platf_new_router(&router);
1019   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1020   free(newid);
1021
1022   //Make the backbone
1023   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
1024     char *link_backbone = bprintf("%s_backbone", cluster->id);
1025     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1026               cluster->bb_bw, cluster->bb_lat);
1027
1028     memset(&link, 0, sizeof(link));
1029     link.id        = link_backbone;
1030     link.bandwidth = cluster->bb_bw;
1031     link.latency   = cluster->bb_lat;
1032     link.state     = SURF_RESOURCE_ON;
1033     link.policy    = cluster->bb_sharing_policy;
1034
1035     sg_platf_new_link(&link);
1036
1037     routing_cluster_add_backbone(Link::byName(link_backbone));
1038
1039     free(link_backbone);
1040   }
1041
1042   XBT_DEBUG("</AS>");
1043   sg_platf_new_AS_end();
1044   XBT_DEBUG(" ");
1045   xbt_dict_free(&patterns); // no op if it were never set
1046 }
1047
1048 static void routing_parse_postparse(void) {
1049   xbt_dict_free(&random_value);
1050 }
1051
1052 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1053 {
1054   char *host_id = NULL;
1055   char *link_id = NULL;
1056   char *router_id = NULL;
1057
1058   XBT_DEBUG(" ");
1059   host_id = HOST_PEER(peer->id);
1060   link_id = LINK_PEER(peer->id);
1061   router_id = ROUTER_PEER(peer->id);
1062
1063   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1064   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1065   AS.id                    = peer->id;
1066   AS.routing               = A_surfxml_AS_routing_Cluster;
1067   sg_platf_new_AS_begin(&AS);
1068
1069   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1070
1071   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1072   s_sg_platf_host_cbarg_t host;
1073   memset(&host, 0, sizeof(host));
1074   host.initial_state = SURF_RESOURCE_ON;
1075   host.id = host_id;
1076
1077   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1078   xbt_dynar_push(power_state_list,&peer->power);
1079   host.power_peak = power_state_list;
1080   host.pstate = 0;
1081   //host.power_peak = peer->power;
1082   host.power_scale = 1.0;
1083   host.power_trace = peer->availability_trace;
1084   host.state_trace = peer->state_trace;
1085   host.core_amount = 1;
1086   sg_platf_new_host(&host);
1087
1088   s_sg_platf_link_cbarg_t link;
1089   memset(&link, 0, sizeof(link));
1090   link.state   = SURF_RESOURCE_ON;
1091   link.policy  = SURF_LINK_SHARED;
1092   link.latency = peer->lat;
1093
1094   char* link_up = bprintf("%s_UP",link_id);
1095   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1096             peer->bw_out, peer->lat);
1097   link.id = link_up;
1098   link.bandwidth = peer->bw_out;
1099   sg_platf_new_link(&link);
1100
1101   char* link_down = bprintf("%s_DOWN",link_id);
1102   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1103             peer->bw_in, peer->lat);
1104   link.id = link_down;
1105   link.bandwidth = peer->bw_in;
1106   sg_platf_new_link(&link);
1107
1108   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1109   s_sg_platf_host_link_cbarg_t host_link;
1110   memset(&host_link, 0, sizeof(host_link));
1111   host_link.id        = host_id;
1112   host_link.link_up   = link_up;
1113   host_link.link_down = link_down;
1114   sg_platf_new_host_link(&host_link);
1115
1116   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1117   s_sg_platf_router_cbarg_t router;
1118   memset(&router, 0, sizeof(router));
1119   router.id = router_id;
1120   router.coord = peer->coord;
1121   sg_platf_new_router(&router);
1122   static_cast<AsClusterPtr>(current_routing)->p_router = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1123
1124   XBT_DEBUG("</AS>");
1125   sg_platf_new_AS_end();
1126   XBT_DEBUG(" ");
1127
1128   //xbt_dynar_free(&tab_elements_num);
1129   free(router_id);
1130   free(host_id);
1131   free(link_id);
1132   free(link_up);
1133   free(link_down);
1134 }
1135
1136 // static void routing_parse_Srandom(void)
1137 // {
1138 //   double mean, std, min, max, seed;
1139 //   char *random_id = A_surfxml_random_id;
1140 //   char *random_radical = A_surfxml_random_radical;
1141 //   char *rd_name = NULL;
1142 //   char *rd_value;
1143 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1144 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1145 //   min = surf_parse_get_double(A_surfxml_random_min);
1146 //   max = surf_parse_get_double(A_surfxml_random_max);
1147 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1148
1149 //   double res = 0;
1150 //   int i = 0;
1151 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1152 //   char *tmpbuf;
1153
1154 //   xbt_dynar_t radical_elements;
1155 //   unsigned int iter;
1156 //   char *groups;
1157 //   int start, end;
1158 //   xbt_dynar_t radical_ends;
1159
1160 //   switch (A_surfxml_random_generator) {
1161 //   case AU_surfxml_random_generator:
1162 //   case A_surfxml_random_generator_NONE:
1163 //     random->generator = NONE;
1164 //     break;
1165 //   case A_surfxml_random_generator_DRAND48:
1166 //     random->generator = DRAND48;
1167 //     break;
1168 //   case A_surfxml_random_generator_RAND:
1169 //     random->generator = RAND;
1170 //     break;
1171 //   case A_surfxml_random_generator_RNGSTREAM:
1172 //     random->generator = RNGSTREAM;
1173 //     break;
1174 //   default:
1175 //     surf_parse_error("Invalid random generator");
1176 //     break;
1177 //   }
1178 //   random->seed = seed;
1179 //   random->min = min;
1180 //   random->max = max;
1181
1182 //   /* Check user stupidities */
1183 //   if (max < min)
1184 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1185 //   if (mean < min)
1186 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1187 //   if (mean > max)
1188 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1189
1190 //   /* normalize the mean and standard deviation before storing */
1191 //   random->mean = (mean - min) / (max - min);
1192 //   random->std = std / (max - min);
1193
1194 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1195 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1196 //            random->mean, random->std);
1197
1198 //   XBT_DEBUG
1199 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1200 //        random_id, random->min, random->max, random->mean, random->std,
1201 //        (int)random->generator, random->seed, random_radical);
1202
1203 //   if (!random_value)
1204 //     random_value = xbt_dict_new_homogeneous(free);
1205
1206 //   if (!strcmp(random_radical, "")) {
1207 //     res = random_generate(random);
1208 //     rd_value = bprintf("%f", res);
1209 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1210 //   } else {
1211 //     radical_elements = xbt_str_split(random_radical, ",");
1212 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1213 //       radical_ends = xbt_str_split(groups, "-");
1214 //       switch (xbt_dynar_length(radical_ends)) {
1215 //       case 1:
1216 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1217 //                    "Custom Random '%s' already exists !", random_id);
1218 //         res = random_generate(random);
1219 //         tmpbuf =
1220 //             bprintf("%s%d", random_id,
1221 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1222 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1223 //         xbt_free(tmpbuf);
1224 //         break;
1225
1226 //       case 2:
1227 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1228 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1229 //         for (i = start; i <= end; i++) {
1230 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1231 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1232 //                                                                     random_id,
1233 //                                                                     i));
1234 //           res = random_generate(random);
1235 //           tmpbuf = bprintf("%s%d", random_id, i);
1236 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1237 //           xbt_free(tmpbuf);
1238 //         }
1239 //         break;
1240 //       default:
1241 //         XBT_CRITICAL("Malformed radical");
1242 //         break;
1243 //       }
1244 //       res = random_generate(random);
1245 //       rd_name = bprintf("%s_router", random_id);
1246 //       rd_value = bprintf("%f", res);
1247 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1248
1249 //       xbt_dynar_free(&radical_ends);
1250 //     }
1251 //     free(rd_name);
1252 //     xbt_dynar_free(&radical_elements);
1253 //   }
1254 // }
1255
1256 static void check_disk_attachment()
1257 {
1258   xbt_lib_cursor_t cursor;
1259   char *key;
1260   void **data;
1261   RoutingEdgePtr host_elm;
1262   xbt_lib_foreach(storage_lib, cursor, key, data) {
1263     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1264           StoragePtr storage = static_cast<StoragePtr>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1265           host_elm = sg_routing_edge_by_name_or_null(storage->p_attach);
1266           if(!host_elm)
1267                   surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1268     }
1269   }
1270 }
1271
1272 void routing_register_callbacks()
1273 {
1274   sg_platf_host_add_cb(parse_S_host);
1275   sg_platf_router_add_cb(parse_S_router);
1276   sg_platf_host_link_add_cb(parse_S_host_link);
1277   sg_platf_route_add_cb(parse_E_route);
1278   sg_platf_ASroute_add_cb(parse_E_ASroute);
1279   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1280   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1281
1282   sg_platf_cluster_add_cb(routing_parse_cluster);
1283   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1284
1285   sg_platf_peer_add_cb(routing_parse_peer);
1286   sg_platf_postparse_add_cb(routing_parse_postparse);
1287   sg_platf_postparse_add_cb(check_disk_attachment);
1288
1289   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1290   sg_platf_AS_end_add_cb(routing_AS_end);
1291   sg_platf_AS_begin_add_cb(routing_AS_begin);
1292
1293   sg_platf_trace_add_cb(routing_parse_trace);
1294   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1295
1296   instr_routing_define_callbacks();
1297 }
1298
1299 /**
1300  * \brief Recursive function for finalize
1301  *
1302  * \param rc the source host name
1303  *
1304  * This fuction is call by "finalize". It allow to finalize the
1305  * AS or routing components. It delete all the structures.
1306  */
1307 static void finalize_rec(AsPtr as) {
1308   xbt_dict_cursor_t cursor = NULL;
1309   char *key;
1310   AS_t elem;
1311
1312   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1313     finalize_rec(elem);
1314   }
1315
1316   delete as;;
1317 }
1318
1319 /** \brief Frees all memory allocated by the routing module */
1320 void routing_exit(void) {
1321   delete routing_platf;
1322 }
1323
1324 RoutingPlatf::~RoutingPlatf()
1325 {
1326         xbt_dynar_free(&p_lastRoute);
1327         finalize_rec(p_root);
1328 }
1329
1330 AS_t surf_AS_get_routing_root() {
1331   return routing_platf->p_root;
1332 }
1333
1334 const char *surf_AS_get_name(AsPtr as) {
1335   return as->p_name;
1336 }
1337
1338 static AsPtr surf_AS_recursive_get_by_name(AsPtr current, const char * name) {
1339   xbt_dict_cursor_t cursor = NULL;
1340   char *key;
1341   AS_t elem;
1342   AsPtr tmp = NULL;
1343
1344   if(!strcmp(current->p_name, name))
1345     return current;
1346
1347   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1348     tmp = surf_AS_recursive_get_by_name(elem, name);
1349     if(tmp != NULL ) {
1350         break;
1351     }
1352   }
1353   return tmp;
1354 }
1355
1356
1357 AsPtr surf_AS_get_by_name(const char * name) {
1358   AsPtr as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1359   if(as == NULL)
1360     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1361   return as;
1362 }
1363
1364 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1365   return as->p_routingSons;
1366 }
1367
1368 const char *surf_AS_get_model(AsPtr as) {
1369   return as->p_modelDesc->name;
1370 }
1371
1372 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1373   xbt_dynar_t elms = as->p_indexNetworkElm;
1374   sg_routing_edge_t relm;
1375   xbt_dictelm_t delm;
1376   int index;
1377   int count = xbt_dynar_length(elms);
1378   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1379   for (index = 0; index < count; index++) {
1380      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1381      delm = xbt_lib_get_elm_or_null(host_lib, relm->getName());
1382      if (delm!=NULL) {
1383        xbt_dynar_push(res, &delm);
1384      }
1385   }
1386   return res;
1387 }
1388
1389 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1390   as->getGraph(graph, nodes, edges);
1391 }