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 /**
  35  * @ingroup SURF_build_api
  36  * @brief A library containing all known links
  37  */
  38 xbt_lib_t link_lib;
  39 int SD_LINK_LEVEL;              //Simdag level
  40 int SURF_LINK_LEVEL;            //Surf level
  41
  42 xbt_lib_t as_router_lib;
  43 int ROUTING_ASR_LEVEL;          //Routing level
  44 int COORD_ASR_LEVEL;            //Coordinates level
  45 int NS3_ASR_LEVEL;              //host node for ns3
  46 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  47
  48 static xbt_dict_t random_value = NULL;
  49
  50
  51 /** @brief Retrieve a routing edge from its name
  52  *
  53  * Routing edges are either host and routers, whatever
  54  */
  55 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
  56   sg_host_t h = sg_host_by_name(name);
  57   RoutingEdgePtr net_elm = h==NULL?NULL: sg_host_edge(h);
  58   if (!net_elm)
  59         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  60   return net_elm;
  61 }
  62
  63 /* Global vars */
  64 RoutingPlatfPtr routing_platf = NULL;
  65 AsPtr current_routing = NULL;
  66
  67 /* global parse functions */
  68 extern xbt_dynar_t mount_list;
  69
  70 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  71
  72 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  73 // static void routing_parse_Srandom(void);        /* random bypass */
  74
  75 static void routing_parse_postparse(void);
  76
  77 /* this lines are only for replace use like index in the model table */
  78 typedef enum {
  79   SURF_MODEL_FULL = 0,
  80   SURF_MODEL_FLOYD,
  81   SURF_MODEL_DIJKSTRA,
  82   SURF_MODEL_DIJKSTRACACHE,
  83   SURF_MODEL_NONE,
  84   SURF_MODEL_VIVALDI,
  85   SURF_MODEL_CLUSTER,
  86   SURF_MODEL_TORUS_CLUSTER,
  87   SURF_MODEL_FAT_TREE_CLUSTER,
  88 } e_routing_types;
  89
  90 struct s_model_type routing_models[] = {
  91   {"Full",
  92    "Full routing data (fast, large memory requirements, fully expressive)",
  93    model_full_create, model_full_end},
  94   {"Floyd",
  95    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  96    model_floyd_create, model_floyd_end},
  97   {"Dijkstra",
  98    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  99    model_dijkstra_create, model_dijkstra_both_end},
 100   {"DijkstraCache",
 101    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
 102    model_dijkstracache_create, model_dijkstra_both_end},
 103   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
 104    model_none_create,  NULL},
 105   {"Vivaldi", "Vivaldi routing",
 106    model_vivaldi_create, NULL},
 107   {"Cluster", "Cluster routing",
 108    model_cluster_create, NULL},
 109   {"Torus_Cluster", "Torus Cluster routing",
 110    model_torus_cluster_create, NULL},
 111   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
 112    model_fat_tree_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 = sg_host_edge(sg_host_by_name(host->id));
 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         surf_parse_error("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(!sg_host_by_name(host->id),
 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   sg_host_edge_set(sg_host_by_name_or_create(host->id), 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         surf_parse_error("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_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 359     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 360     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 361     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 362     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 363     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 364     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 365     default: xbt_die("Not a valid model!!!");
 366     break;
 367   }
 368
 369   /* make a new routing component */
 370   AsPtr new_as = model->create();
 371
 372   new_as->p_modelDesc = model;
 373   new_as->p_hierarchy = SURF_ROUTING_NULL;
 374   new_as->p_name = xbt_strdup(AS->id);
 375
 376   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(new_as->p_name),
 377                                             -1,
 378                                             SURF_NETWORK_ELEMENT_AS,
 379                                             current_routing);
 380   if (current_routing == NULL && routing_platf->p_root == NULL) {
 381
 382     /* it is the first one */
 383     new_as->p_routingFather = NULL;
 384     routing_platf->p_root = new_as;
 385     info->setId(-1);
 386   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 387
 388     xbt_assert(!xbt_dict_get_or_null
 389                (current_routing->p_routingSons, AS->id),
 390                "The AS \"%s\" already exists", AS->id);
 391     /* it is a part of the tree */
 392     new_as->p_routingFather = current_routing;
 393     /* set the father behavior */
 394     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 395       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 396     /* add to the sons dictionary */
 397     xbt_dict_set(current_routing->p_routingSons, AS->id,
 398                  (void *) new_as, NULL);
 399     /* add to the father element list */
 400     info->setId(current_routing->parseAS(info));
 401   } else {
 402     THROWF(arg_error, 0, "All defined components must belong to a AS");
 403   }
 404
 405   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 406               (void *) info);
 407   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 408
 409   /* set the new current component of the tree */
 410   current_routing = new_as;
 411   current_routing->p_netElem = info;
 412
 413 }
 414
 415 /**
 416  * \brief Specify that the current description of AS is finished
 417  *
 418  * Once you've declared all the content of your AS, you have to close
 419  * it with this call. Your AS is not usable until you call this function.
 420  *
 421  * @fixme: this call is not as robust as wanted: bad things WILL happen
 422  * if you call it twice for the same AS, or if you forget calling it, or
 423  * even if you add stuff to a closed AS
 424  *
 425  */
 426 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
 427 {
 428
 429   if (current_routing == NULL) {
 430     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 431   } else {
 432     if (current_routing->p_modelDesc->end)
 433       current_routing->p_modelDesc->end(current_routing);
 434     current_routing = current_routing->p_routingFather;
 435   }
 436 }
 437
 438 /* Aux Business methods */
 439
 440 /**
 441  * \brief Get the AS father and the first elements of the chain
 442  *
 443  * \param src the source host name
 444  * \param dst the destination host name
 445  *
 446  * Get the common father of the to processing units, and the first different
 447  * father in the chain
 448  */
 449 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 450                             AS_t * res_father,
 451                             AS_t * res_src,
 452                             AS_t * res_dst)
 453 {
 454   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 455 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 456   AsPtr src_as, dst_as;
 457   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
 458   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
 459   int index_src = 0;
 460   int index_dst = 0;
 461   AsPtr current;
 462   AsPtr current_src;
 463   AsPtr current_dst;
 464   AsPtr father;
 465
 466   /* (1) find the as where the src and dst are located */
 467   sg_routing_edge_t src_data = src;
 468   sg_routing_edge_t dst_data = dst;
 469   src_as = src_data->getRcComponent();
 470   dst_as = dst_data->getRcComponent();
 471 #ifndef NDEBUG
 472   char* src_name = src_data->getName();
 473   char* dst_name = dst_data->getName();
 474 #endif
 475
 476   xbt_assert(src_as && dst_as,
 477              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 478
 479   /* (2) find the path to the root routing component */
 480   for (current = src_as; current != NULL; current = current->p_routingFather) {
 481     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 482       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 483     path_src[index_src++] = current;
 484   }
 485   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 486     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 487       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 488     path_dst[index_dst++] = current;
 489   }
 490
 491   /* (3) find the common father */
 492   do {
 493     current_src = path_src[--index_src];
 494     current_dst = path_dst[--index_dst];
 495   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 496
 497   /* (4) they are not in the same routing component, make the path */
 498   if (current_src == current_dst)
 499     father = current_src;
 500   else
 501     father = path_src[index_src + 1];
 502
 503   /* (5) result generation */
 504   *res_father = father;         /* first the common father of src and dst */
 505   *res_src = current_src;       /* second the first different father of src */
 506   *res_dst = current_dst;       /* three  the first different father of dst */
 507
 508 #undef ELEMENTS_FATHER_MAXDEPTH
 509 }
 510
 511 /* Global Business methods */
 512
 513 /**
 514  * \brief Recursive function for get_route_latency
 515  *
 516  * \param src the source host name
 517  * \param dst the destination host name
 518  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 519  * \param *latency the latency, if needed
 520  *
 521  * This function is called by "get_route" and "get_latency". It allows to walk
 522  * recursively through the ASes tree.
 523  */
 524 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
 525                                    xbt_dynar_t * links, double *latency)
 526 {
 527   s_sg_platf_route_cbarg_t route;
 528   memset(&route,0,sizeof(route));
 529
 530   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 531   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 532
 533   /* Find how src and dst are interconnected */
 534   AsPtr common_father, src_father, dst_father;
 535   elements_father(src, dst, &common_father, &src_father, &dst_father);
 536   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 537       common_father->p_name, src_father->p_name, dst_father->p_name);
 538
 539   /* Check whether a direct bypass is defined */
 540   sg_platf_route_cbarg_t e_route_bypass = NULL;
 541   //FIXME:REMOVE:if (common_father->get_bypass_route)
 542
 543   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 544
 545   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 546   if (e_route_bypass) {
 547     xbt_dynar_merge(links, &e_route_bypass->link_list);
 548     generic_free_route(e_route_bypass);
 549     return;
 550   }
 551
 552   /* If src and dst are in the same AS, life is good */
 553   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 554     route.link_list = *links;
 555     common_father->getRouteAndLatency(src, dst, &route, latency);
 556     // if vivaldi latency+=vivaldi(src,dst)
 557     return;
 558   }
 559
 560   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 561
 562   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 563   // Find the net_card corresponding to father
 564   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
 565   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
 566
 567   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 568                                     &route, latency);
 569
 570   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 571       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 572
 573   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 574   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 575
 576   /* If source gateway is not our source, we have to recursively find our way up to this point */
 577   if (src != src_gateway_net_elm)
 578     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 579   xbt_dynar_merge(links, &route.link_list);
 580
 581   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 582   if (dst_gateway_net_elm != dst)
 583     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 584
 585   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 586 }
 587
 588 AS_t surf_platf_get_root(routing_platf_t platf){
 589   return platf->p_root;
 590 }
 591
 592 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
 593   return edge->getRcType();
 594 }
 595
 596
 597 /**
 598  * \brief Find a route between hosts
 599  *
 600  * \param src the network_element_t for src host
 601  * \param dst the network_element_t for dst host
 602  * \param route where to store the list of links.
 603  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 604  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 605  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 606  * \pre route!=NULL
 607  *
 608  * walk through the routing components tree and find a route between hosts
 609  * by calling the differents "get_route" functions in each routing component.
 610  */
 611 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
 612                                    xbt_dynar_t* route, double *latency)
 613 {
 614   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 615   if (!*route) {
 616     xbt_dynar_reset(routing_platf->p_lastRoute);
 617     *route = routing_platf->p_lastRoute;
 618   }
 619
 620   _get_route_and_latency(src, dst, route, latency);
 621
 622   xbt_assert(!latency || *latency >= 0.0,
 623              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 624 }
 625
 626 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 627   return recursiveGetOneLinkRoutes(p_root);
 628 }
 629
 630 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
 631 {
 632   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free_f);
 633
 634   //adding my one link routes
 635   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 636   if (onelink_mine)
 637     xbt_dynar_merge(&ret,&onelink_mine);
 638
 639   //recursing
 640   char *key;
 641   xbt_dict_cursor_t cursor = NULL;
 642   AS_t rc_child;
 643   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 644     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 645     if (onelink_child)
 646       xbt_dynar_merge(&ret,&onelink_child);
 647   }
 648   return ret;
 649 }
 650
 651 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 652 {
 653   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
 654   if (rc)
 655     return rc->getRcType();
 656
 657   return SURF_NETWORK_ELEMENT_NULL;
 658 }
 659
 660 /**
 661  * \brief Generic method: create the global routing schema
 662  *
 663  * Make a global routing structure and set all the parsing functions.
 664  */
 665 void routing_model_create( void *loopback)
 666 {
 667   /* config the uniq global routing */
 668   routing_platf = new RoutingPlatf();
 669   routing_platf->p_root = NULL;
 670   routing_platf->p_loopback = loopback;
 671   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 672   /* no current routing at moment */
 673   current_routing = NULL;
 674 }
 675
 676
 677 /* ************************************************** */
 678 /* ********** PATERN FOR NEW ROUTING **************** */
 679
 680 /* The minimal configuration of a new routing model need the next functions,
 681  * also you need to set at the start of the file, the new model in the model
 682  * list. Remember keep the null ending of the list.
 683  */
 684 /*** Routing model structure ***/
 685 // typedef struct {
 686 //   s_routing_component_t generic_routing;
 687 //   /* things that your routing model need */
 688 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 689
 690 /*** Parse routing model functions ***/
 691 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 692 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 693 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 694 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 695 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 696
 697 /*** Business methods ***/
 698 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 699 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 700 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 701
 702 /*** Creation routing model functions ***/
 703 // static void* model_NEW_create(void) {
 704 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 705 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 706 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 707 //   new_component->generic_routing.set_route = model_NEW_set_route;
 708 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 709 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 710 //   new_component->generic_routing.get_route = NEW_get_route;
 711 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 712 //   new_component->generic_routing.finalize = NEW_finalize;
 713 //   /* initialization of internal structures */
 714 //   return new_component;
 715 // } /* mandatory */
 716 // static void  model_NEW_load(void) {}   /* mandatory */
 717 // static void  model_NEW_unload(void) {} /* mandatory */
 718 // static void  model_NEW_end(void) {}    /* mandatory */
 719
 720 /* ************************************************************************** */
 721 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 722
 723 void routing_cluster_add_backbone(void* bb) {
 724   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 725         "You have to be in model Cluster to use tag backbone!");
 726   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
 727   surf_as_cluster_set_backbone(current_routing, bb);
 728   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 729 }
 730
 731 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 732 {
 733   int start, end, i;
 734   char *groups , *host_id , *link_id = NULL;
 735   unsigned int iter;
 736   xbt_dynar_t radical_elements;
 737   xbt_dynar_t radical_ends;
 738
 739   //Make all hosts
 740   radical_elements = xbt_str_split(cabinet->radical, ",");
 741   xbt_dynar_foreach(radical_elements, iter, groups) {
 742
 743     radical_ends = xbt_str_split(groups, "-");
 744     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 745
 746     switch (xbt_dynar_length(radical_ends)) {
 747     case 1:
 748       end = start;
 749       break;
 750     case 2:
 751       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 752       break;
 753     default:
 754       surf_parse_error("Malformed radical");
 755       break;
 756     }
 757     s_sg_platf_host_cbarg_t host;
 758     memset(&host, 0, sizeof(host));
 759     host.initial_state = SURF_RESOURCE_ON;
 760     host.pstate        = 0;
 761     host.power_scale   = 1.0;
 762     host.core_amount   = 1;
 763
 764     s_sg_platf_link_cbarg_t link;
 765     memset(&link, 0, sizeof(link));
 766     link.state     = SURF_RESOURCE_ON;
 767     link.policy    = SURF_LINK_FULLDUPLEX;
 768     link.latency   = cabinet->lat;
 769     link.bandwidth = cabinet->bw;
 770
 771     s_sg_platf_host_link_cbarg_t host_link;
 772     memset(&host_link, 0, sizeof(host_link));
 773
 774     for (i = start; i <= end; i++) {
 775       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 776       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 777       host.id                      = host_id;
 778       link.id                      = link_id;
 779       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 780       xbt_dynar_push(power_state_list,&cabinet->power);
 781       host.power_peak = power_state_list;
 782       sg_platf_new_host(&host);
 783       sg_platf_new_link(&link);
 784
 785       char* link_up       = bprintf("%s_UP",link_id);
 786       char* link_down     = bprintf("%s_DOWN",link_id);
 787       host_link.id        = host_id;
 788       host_link.link_up   = link_up;
 789       host_link.link_down = link_down;
 790       sg_platf_new_host_link(&host_link);
 791
 792       free(host_id);
 793       free(link_id);
 794       free(link_up);
 795       free(link_down);
 796     }
 797
 798     xbt_dynar_free(&radical_ends);
 799   }
 800   xbt_dynar_free(&radical_elements);
 801 }
 802
 803 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 804 {
 805   char *host_id, *groups, *link_id = NULL;
 806   xbt_dict_t patterns = NULL;
 807   int rankId=0;
 808
 809   s_sg_platf_host_cbarg_t host;
 810   s_sg_platf_link_cbarg_t link;
 811
 812   unsigned int iter;
 813   int start, end, i;
 814   xbt_dynar_t radical_elements;
 815   xbt_dynar_t radical_ends;
 816
 817   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 818       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 819     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 820     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 821     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 822     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 823   }
 824
 825   /* parse the topology attribute. If we are not in a flat cluster,
 826    * switch to the right mode and initialize the routing with
 827    * the parameters in topo_parameters attribute
 828    */
 829   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 830   AS.id = cluster->id;
 831
 832   if(cluster->topology == SURF_CLUSTER_TORUS){
 833     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 834     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 835     sg_platf_new_AS_begin(&AS);
 836     ((AsClusterTorusPtr)current_routing)->parse_specific_arguments(cluster);
 837   }
 838   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 839     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 840     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 841     sg_platf_new_AS_begin(&AS);
 842     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 843   }
 844
 845   else{
 846     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 847     AS.routing = A_surfxml_AS_routing_Cluster;
 848     sg_platf_new_AS_begin(&AS);
 849   }
 850
 851   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 852       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 853       ((AsClusterPtr)current_routing)->p_has_loopback=1;
 854   }
 855
 856   if(cluster->limiter_link!=0){
 857       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 858       ((AsClusterPtr)current_routing)->p_has_limiter=1;
 859   }
 860
 861
 862
 863   current_routing->p_linkUpDownList
 864             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 865
 866   //Make all hosts
 867   radical_elements = xbt_str_split(cluster->radical, ",");
 868   xbt_dynar_foreach(radical_elements, iter, groups) {
 869
 870     radical_ends = xbt_str_split(groups, "-");
 871     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 872
 873     switch (xbt_dynar_length(radical_ends)) {
 874     case 1:
 875       end = start;
 876       break;
 877     case 2:
 878       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 879       break;
 880     default:
 881       surf_parse_error("Malformed radical");
 882       break;
 883     }
 884     for (i = start; i <= end; i++) {
 885       host_id =
 886           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 887       link_id = bprintf("%s_link_%d", cluster->id, i);
 888
 889       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 890
 891       memset(&host, 0, sizeof(host));
 892       host.id = host_id;
 893       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 894           xbt_dict_cursor_t cursor=NULL;
 895           char *key,*data;
 896           host.properties = xbt_dict_new();
 897
 898           xbt_dict_foreach(cluster->properties,cursor,key,data) {
 899                   xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 900           }
 901       }
 902       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 903         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 904         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 905         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 906         host.power_trace = tmgr_trace_new_from_file(avail_file);
 907         xbt_free(avail_file);
 908       } else {
 909         XBT_DEBUG("\tavailability_file=\"\"");
 910       }
 911
 912       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 913         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 914         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 915         host.state_trace = tmgr_trace_new_from_file(avail_file);
 916         xbt_free(avail_file);
 917       } else {
 918         XBT_DEBUG("\tstate_file=\"\"");
 919       }
 920
 921       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 922       xbt_dynar_push(power_state_list,&cluster->power);
 923       host.power_peak = power_state_list;
 924       host.pstate = 0;
 925
 926       //host.power_peak = cluster->power;
 927       host.power_scale = 1.0;
 928       host.core_amount = cluster->core_amount;
 929       host.initial_state = SURF_RESOURCE_ON;
 930       host.coord = "";
 931       sg_platf_new_host(&host);
 932       XBT_DEBUG("</host>");
 933
 934       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 935                 cluster->bw, cluster->lat);
 936
 937
 938       s_surf_parsing_link_up_down_t info_lim, info_loop;
 939       // All links are saved in a matrix;
 940       // every row describes a single node; every node
 941       // may have multiple links.
 942       // the first column may store a link from x to x if p_has_loopback is set
 943       // the second column may store a limiter link if p_has_limiter is set
 944       // other columns are to store one or more link for the node
 945
 946       //add a loopback link
 947       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 948         char *tmp_link = bprintf("%s_loopback", link_id);
 949         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 950                 cluster->limiter_link);
 951
 952
 953         memset(&link, 0, sizeof(link));
 954         link.id        = tmp_link;
 955         link.bandwidth = cluster->loopback_bw;
 956         link.latency   = cluster->loopback_lat;
 957         link.state     = SURF_RESOURCE_ON;
 958         link.policy    = SURF_LINK_FATPIPE;
 959         sg_platf_new_link(&link);
 960         info_loop.link_up   =
 961             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 962         info_loop.link_down = info_loop.link_up;
 963         free(tmp_link);
 964         xbt_dynar_set(current_routing->p_linkUpDownList, rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node, &info_loop);
 965       }
 966
 967       //add a limiter link (shared link to account for maximal bandwidth of the node)
 968       if(cluster->limiter_link!=0){
 969         char *tmp_link = bprintf("%s_limiter", link_id);
 970         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 971                 cluster->limiter_link);
 972
 973
 974         memset(&link, 0, sizeof(link));
 975         link.id = tmp_link;
 976         link.bandwidth = cluster->limiter_link;
 977         link.latency = 0;
 978         link.state = SURF_RESOURCE_ON;
 979         link.policy = SURF_LINK_SHARED;
 980         sg_platf_new_link(&link);
 981         info_lim.link_up =
 982             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 983         info_lim.link_down = info_lim.link_up;
 984         free(tmp_link);
 985         xbt_dynar_set(current_routing->p_linkUpDownList,
 986             rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node + ((AsClusterPtr)current_routing)->p_has_loopback ,
 987             &info_lim);
 988
 989       }
 990
 991
 992       //call the cluster function that adds the others links
 993       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 994         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 995       }
 996       else {
 997       ((AsClusterPtr)current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 998           ((AsClusterPtr)current_routing)->p_nb_links_per_node
 999           + ((AsClusterPtr)current_routing)->p_has_loopback
1000           + ((AsClusterPtr)current_routing)->p_has_limiter );
1001       }
1002       xbt_free(link_id);
1003       xbt_free(host_id);
1004       rankId++;
1005     }
1006
1007     xbt_dynar_free(&radical_ends);
1008   }
1009   xbt_dynar_free(&radical_elements);
1010
1011   // For fat trees, the links must be created once all nodes have been added
1012   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
1013     ((AsClusterFatTree*)current_routing)->create_links();
1014   }
1015   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
1016   // and it's very useful to connect clusters together
1017   XBT_DEBUG(" ");
1018   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
1019   char *newid = NULL;
1020   s_sg_platf_router_cbarg_t router;
1021   memset(&router, 0, sizeof(router));
1022   router.id = cluster->router_id;
1023   router.coord = "";
1024   if (!router.id || !strcmp(router.id, ""))
1025     router.id = newid =
1026         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
1027                 cluster->suffix);
1028   sg_platf_new_router(&router);
1029   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1030   free(newid);
1031
1032   //Make the backbone
1033   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
1034     char *link_backbone = bprintf("%s_backbone", cluster->id);
1035     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1036               cluster->bb_bw, cluster->bb_lat);
1037
1038     memset(&link, 0, sizeof(link));
1039     link.id        = link_backbone;
1040     link.bandwidth = cluster->bb_bw;
1041     link.latency   = cluster->bb_lat;
1042     link.state     = SURF_RESOURCE_ON;
1043     link.policy    = cluster->bb_sharing_policy;
1044
1045     sg_platf_new_link(&link);
1046
1047     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
1048
1049     free(link_backbone);
1050   }
1051
1052   XBT_DEBUG("</AS>");
1053   sg_platf_new_AS_end();
1054   XBT_DEBUG(" ");
1055   xbt_dict_free(&patterns); // no op if it were never set
1056 }
1057
1058 static void routing_parse_postparse(void) {
1059   xbt_dict_free(&random_value);
1060 }
1061
1062 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1063 {
1064   char *host_id = NULL;
1065   char *link_id = NULL;
1066   char *router_id = NULL;
1067
1068   XBT_DEBUG(" ");
1069   host_id = HOST_PEER(peer->id);
1070   link_id = LINK_PEER(peer->id);
1071   router_id = ROUTER_PEER(peer->id);
1072
1073   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1074   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1075   AS.id                    = peer->id;
1076   AS.routing               = A_surfxml_AS_routing_Cluster;
1077   sg_platf_new_AS_begin(&AS);
1078
1079   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1080
1081   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1082   s_sg_platf_host_cbarg_t host;
1083   memset(&host, 0, sizeof(host));
1084   host.initial_state = SURF_RESOURCE_ON;
1085   host.id = host_id;
1086
1087   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1088   xbt_dynar_push(power_state_list,&peer->power);
1089   host.power_peak = power_state_list;
1090   host.pstate = 0;
1091   //host.power_peak = peer->power;
1092   host.power_scale = 1.0;
1093   host.power_trace = peer->availability_trace;
1094   host.state_trace = peer->state_trace;
1095   host.core_amount = 1;
1096   sg_platf_new_host(&host);
1097
1098   s_sg_platf_link_cbarg_t link;
1099   memset(&link, 0, sizeof(link));
1100   link.state   = SURF_RESOURCE_ON;
1101   link.policy  = SURF_LINK_SHARED;
1102   link.latency = peer->lat;
1103
1104   char* link_up = bprintf("%s_UP",link_id);
1105   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1106             peer->bw_out, peer->lat);
1107   link.id = link_up;
1108   link.bandwidth = peer->bw_out;
1109   sg_platf_new_link(&link);
1110
1111   char* link_down = bprintf("%s_DOWN",link_id);
1112   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1113             peer->bw_in, peer->lat);
1114   link.id = link_down;
1115   link.bandwidth = peer->bw_in;
1116   sg_platf_new_link(&link);
1117
1118   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1119   s_sg_platf_host_link_cbarg_t host_link;
1120   memset(&host_link, 0, sizeof(host_link));
1121   host_link.id        = host_id;
1122   host_link.link_up   = link_up;
1123   host_link.link_down = link_down;
1124   sg_platf_new_host_link(&host_link);
1125
1126   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1127   s_sg_platf_router_cbarg_t router;
1128   memset(&router, 0, sizeof(router));
1129   router.id = router_id;
1130   router.coord = peer->coord;
1131   sg_platf_new_router(&router);
1132   static_cast<AsClusterPtr>(current_routing)->p_router = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1133
1134   XBT_DEBUG("</AS>");
1135   sg_platf_new_AS_end();
1136   XBT_DEBUG(" ");
1137
1138   //xbt_dynar_free(&tab_elements_num);
1139   free(router_id);
1140   free(host_id);
1141   free(link_id);
1142   free(link_up);
1143   free(link_down);
1144 }
1145
1146 // static void routing_parse_Srandom(void)
1147 // {
1148 //   double mean, std, min, max, seed;
1149 //   char *random_id = A_surfxml_random_id;
1150 //   char *random_radical = A_surfxml_random_radical;
1151 //   char *rd_name = NULL;
1152 //   char *rd_value;
1153 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1154 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1155 //   min = surf_parse_get_double(A_surfxml_random_min);
1156 //   max = surf_parse_get_double(A_surfxml_random_max);
1157 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1158
1159 //   double res = 0;
1160 //   int i = 0;
1161 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1162 //   char *tmpbuf;
1163
1164 //   xbt_dynar_t radical_elements;
1165 //   unsigned int iter;
1166 //   char *groups;
1167 //   int start, end;
1168 //   xbt_dynar_t radical_ends;
1169
1170 //   switch (A_surfxml_random_generator) {
1171 //   case AU_surfxml_random_generator:
1172 //   case A_surfxml_random_generator_NONE:
1173 //     random->generator = NONE;
1174 //     break;
1175 //   case A_surfxml_random_generator_DRAND48:
1176 //     random->generator = DRAND48;
1177 //     break;
1178 //   case A_surfxml_random_generator_RAND:
1179 //     random->generator = RAND;
1180 //     break;
1181 //   case A_surfxml_random_generator_RNGSTREAM:
1182 //     random->generator = RNGSTREAM;
1183 //     break;
1184 //   default:
1185 //     surf_parse_error("Invalid random generator");
1186 //     break;
1187 //   }
1188 //   random->seed = seed;
1189 //   random->min = min;
1190 //   random->max = max;
1191
1192 //   /* Check user stupidities */
1193 //   if (max < min)
1194 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1195 //   if (mean < min)
1196 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1197 //   if (mean > max)
1198 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1199
1200 //   /* normalize the mean and standard deviation before storing */
1201 //   random->mean = (mean - min) / (max - min);
1202 //   random->std = std / (max - min);
1203
1204 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1205 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1206 //            random->mean, random->std);
1207
1208 //   XBT_DEBUG
1209 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1210 //        random_id, random->min, random->max, random->mean, random->std,
1211 //        (int)random->generator, random->seed, random_radical);
1212
1213 //   if (!random_value)
1214 //     random_value = xbt_dict_new_homogeneous(free);
1215
1216 //   if (!strcmp(random_radical, "")) {
1217 //     res = random_generate(random);
1218 //     rd_value = bprintf("%f", res);
1219 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1220 //   } else {
1221 //     radical_elements = xbt_str_split(random_radical, ",");
1222 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1223 //       radical_ends = xbt_str_split(groups, "-");
1224 //       switch (xbt_dynar_length(radical_ends)) {
1225 //       case 1:
1226 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1227 //                    "Custom Random '%s' already exists !", random_id);
1228 //         res = random_generate(random);
1229 //         tmpbuf =
1230 //             bprintf("%s%d", random_id,
1231 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1232 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1233 //         xbt_free(tmpbuf);
1234 //         break;
1235
1236 //       case 2:
1237 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1238 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1239 //         for (i = start; i <= end; i++) {
1240 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1241 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1242 //                                                                     random_id,
1243 //                                                                     i));
1244 //           res = random_generate(random);
1245 //           tmpbuf = bprintf("%s%d", random_id, i);
1246 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1247 //           xbt_free(tmpbuf);
1248 //         }
1249 //         break;
1250 //       default:
1251 //         XBT_CRITICAL("Malformed radical");
1252 //         break;
1253 //       }
1254 //       res = random_generate(random);
1255 //       rd_name = bprintf("%s_router", random_id);
1256 //       rd_value = bprintf("%f", res);
1257 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1258
1259 //       xbt_dynar_free(&radical_ends);
1260 //     }
1261 //     free(rd_name);
1262 //     xbt_dynar_free(&radical_elements);
1263 //   }
1264 // }
1265
1266 static void check_disk_attachment()
1267 {
1268   xbt_lib_cursor_t cursor;
1269   char *key;
1270   void **data;
1271   RoutingEdgePtr host_elm;
1272   xbt_lib_foreach(storage_lib, cursor, key, data) {
1273     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1274           StoragePtr storage = static_cast<StoragePtr>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1275           host_elm = sg_routing_edge_by_name_or_null(storage->p_attach);
1276           if(!host_elm)
1277                   surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1278     }
1279   }
1280 }
1281
1282 void routing_register_callbacks()
1283 {
1284   sg_platf_host_add_cb(parse_S_host);
1285   sg_platf_router_add_cb(parse_S_router);
1286   sg_platf_host_link_add_cb(parse_S_host_link);
1287   sg_platf_route_add_cb(parse_E_route);
1288   sg_platf_ASroute_add_cb(parse_E_ASroute);
1289   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1290   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1291
1292   sg_platf_cluster_add_cb(routing_parse_cluster);
1293   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1294
1295   sg_platf_peer_add_cb(routing_parse_peer);
1296   sg_platf_postparse_add_cb(routing_parse_postparse);
1297   sg_platf_postparse_add_cb(check_disk_attachment);
1298
1299   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1300   sg_platf_AS_end_add_cb(routing_AS_end);
1301   sg_platf_AS_begin_add_cb(routing_AS_begin);
1302
1303   sg_platf_trace_add_cb(routing_parse_trace);
1304   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1305
1306   instr_routing_define_callbacks();
1307 }
1308
1309 /**
1310  * \brief Recursive function for finalize
1311  *
1312  * \param rc the source host name
1313  *
1314  * This fuction is call by "finalize". It allow to finalize the
1315  * AS or routing components. It delete all the structures.
1316  */
1317 static void finalize_rec(AsPtr as) {
1318   xbt_dict_cursor_t cursor = NULL;
1319   char *key;
1320   AS_t elem;
1321
1322   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1323     finalize_rec(elem);
1324   }
1325
1326   delete as;;
1327 }
1328
1329 /** \brief Frees all memory allocated by the routing module */
1330 void routing_exit(void) {
1331   delete routing_platf;
1332 }
1333
1334 RoutingPlatf::~RoutingPlatf()
1335 {
1336         xbt_dynar_free(&p_lastRoute);
1337         finalize_rec(p_root);
1338 }
1339
1340 AS_t surf_AS_get_routing_root() {
1341   return routing_platf->p_root;
1342 }
1343
1344 const char *surf_AS_get_name(AsPtr as) {
1345   return as->p_name;
1346 }
1347
1348 static AsPtr surf_AS_recursive_get_by_name(AsPtr current, const char * name) {
1349   xbt_dict_cursor_t cursor = NULL;
1350   char *key;
1351   AS_t elem;
1352   AsPtr tmp = NULL;
1353
1354   if(!strcmp(current->p_name, name))
1355     return current;
1356
1357   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1358     tmp = surf_AS_recursive_get_by_name(elem, name);
1359     if(tmp != NULL ) {
1360         break;
1361     }
1362   }
1363   return tmp;
1364 }
1365
1366
1367 AsPtr surf_AS_get_by_name(const char * name) {
1368   AsPtr as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1369   if(as == NULL)
1370     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1371   return as;
1372 }
1373
1374 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1375   return as->p_routingSons;
1376 }
1377
1378 const char *surf_AS_get_model(AsPtr as) {
1379   return as->p_modelDesc->name;
1380 }
1381
1382 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1383   xbt_dynar_t elms = as->p_indexNetworkElm;
1384   sg_routing_edge_t relm;
1385   xbt_dictelm_t delm;
1386   int index;
1387   int count = xbt_dynar_length(elms);
1388   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1389   for (index = 0; index < count; index++) {
1390      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1391      delm = xbt_lib_get_elm_or_null(host_lib, relm->getName());
1392      if (delm!=NULL) {
1393        xbt_dynar_push(res, &delm);
1394      }
1395   }
1396   return res;
1397 }
1398
1399 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1400   as->getGraph(graph, nodes, edges);
1401 }