src/surf/surf_routing.cpp

   1 /* Copyright (c) 2009-2011, 2013-2015. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "surf_routing.hpp"
   8 #include "surf_routing_private.hpp"
   9 #include "surf_routing_cluster.hpp"
  10 #include "surf_routing_cluster_torus.hpp"
  11 #include "surf_routing_cluster_fat_tree.hpp"
  12
  13 #include "simgrid/platf_interface.h"    // platform creation API internal interface
  14 #include "simgrid/sg_config.h"
  15 #include "storage_interface.hpp"
  16
  17 #include "surf/surfxml_parse_values.h"
  18
  19
  20 /**
  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 COORD_HOST_LEVEL=0;         //Coordinates level
  28 int NS3_HOST_LEVEL;             //host node for ns3
  29
  30 int MSG_FILE_LEVEL;             //Msg file level
  31
  32 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  33 int MSG_STORAGE_LEVEL;          //Msg storage level
  34 int SD_STORAGE_LEVEL;           //Simdag storage level
  35
  36 xbt_lib_t as_router_lib;
  37 int ROUTING_ASR_LEVEL;          //Routing level
  38 int COORD_ASR_LEVEL;            //Coordinates level
  39 int NS3_ASR_LEVEL;              //host node for ns3
  40 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  41
  42 static xbt_dict_t random_value = NULL;
  43
  44
  45 /** @brief Retrieve a routing edge from its name
  46  *
  47  * Routing edges are either host and routers, whatever
  48  */
  49 RoutingEdge *sg_routing_edge_by_name_or_null(const char *name) {
  50   sg_host_t h = sg_host_by_name(name);
  51   RoutingEdge *net_elm = h==NULL?NULL: sg_host_edge(h);
  52   if (!net_elm)
  53         net_elm = (RoutingEdge*) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  54   return net_elm;
  55 }
  56
  57 /* Global vars */
  58 RoutingPlatf *routing_platf = NULL;
  59 As *current_routing = NULL;
  60
  61 /* global parse functions */
  62 extern xbt_dynar_t mount_list;
  63
  64 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  65
  66 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  67 // static void routing_parse_Srandom(void);        /* random bypass */
  68
  69 static void routing_parse_postparse(void);
  70
  71 /* this lines are only for replace use like index in the model table */
  72 typedef enum {
  73   SURF_MODEL_FULL = 0,
  74   SURF_MODEL_FLOYD,
  75   SURF_MODEL_DIJKSTRA,
  76   SURF_MODEL_DIJKSTRACACHE,
  77   SURF_MODEL_NONE,
  78   SURF_MODEL_VIVALDI,
  79   SURF_MODEL_CLUSTER,
  80   SURF_MODEL_TORUS_CLUSTER,
  81   SURF_MODEL_FAT_TREE_CLUSTER,
  82 } e_routing_types;
  83
  84 struct s_model_type routing_models[] = {
  85   {"Full",
  86    "Full routing data (fast, large memory requirements, fully expressive)",
  87    model_full_create, model_full_end},
  88   {"Floyd",
  89    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  90    model_floyd_create, model_floyd_end},
  91   {"Dijkstra",
  92    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
  93    model_dijkstra_create, model_dijkstra_both_end},
  94   {"DijkstraCache",
  95    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
  96    model_dijkstracache_create, model_dijkstra_both_end},
  97   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
  98    model_none_create,  NULL},
  99   {"Vivaldi", "Vivaldi routing",
 100    model_vivaldi_create, NULL},
 101   {"Cluster", "Cluster routing",
 102    model_cluster_create, NULL},
 103   {"Torus_Cluster", "Torus Cluster routing",
 104    model_torus_cluster_create, NULL},
 105   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
 106    model_fat_tree_cluster_create, NULL},
 107   {NULL, NULL, NULL, NULL}
 108 };
 109
 110 /**
 111  * \brief Add a "host_link" to the network element list
 112  */
 113 static void parse_S_host(sg_platf_host_link_cbarg_t host)
 114 {
 115   RoutingEdge *info = sg_host_edge(sg_host_by_name(host->id));
 116   xbt_assert(info, "Host '%s' not found!", host->id);
 117   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 118       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 119       "You have to be in model Cluster to use tag host_link!");
 120
 121   s_surf_parsing_link_up_down_t link_up_down;
 122   link_up_down.link_up = Link::byName(host->link_up);
 123   link_up_down.link_down = Link::byName(host->link_down);
 124
 125   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 126   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 127
 128   if(!current_routing->p_linkUpDownList)
 129     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 130
 131   // If dynar is is greater than edge id and if the host_link is already defined
 132   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
 133       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
 134         surf_parse_error("Host_link for '%s' is already defined!",host->id);
 135
 136   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
 137   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
 138 }
 139
 140 /**
 141  * \brief Add a "host" to the network element list
 142  */
 143 void routing_parse_init(sg_platf_host_cbarg_t host)
 144 {
 145   if (! current_routing)
 146     return;
 147
 148   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 149     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 150   xbt_assert(!sg_host_by_name(host->id),
 151                      "Reading a host, processing unit \"%s\" already exists", host->id);
 152
 153   RoutingEdge *info = new RoutingEdgeImpl(xbt_strdup(host->id),
 154                                                     -1,
 155                                                     SURF_NETWORK_ELEMENT_HOST,
 156                                                     current_routing);
 157   info->setId(current_routing->parsePU(info));
 158   sg_host_edge_set(sg_host_by_name_or_create(host->id), info);
 159   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->getId());
 160
 161   if(mount_list){
 162     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 163     mount_list = NULL;
 164   }
 165
 166   if (host->coord && strcmp(host->coord, "")) {
 167     unsigned int cursor;
 168     char*str;
 169
 170     if (!COORD_HOST_LEVEL)
 171       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 172     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 173     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 174     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 175     xbt_dynar_foreach(ctn_str,cursor, str) {
 176       double val = atof(str);
 177       xbt_dynar_push(ctn,&val);
 178     }
 179     xbt_dynar_shrink(ctn, 0);
 180     xbt_dynar_free(&ctn_str);
 181     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 182     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 183   }
 184 }
 185
 186 /**
 187  * \brief Add a "router" to the network element list
 188  */
 189 static void parse_S_router(sg_platf_router_cbarg_t router)
 190 {
 191   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 192     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 193   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 194              "Reading a router, processing unit \"%s\" already exists",
 195              router->id);
 196
 197   RoutingEdge *info = new RoutingEdgeImpl(xbt_strdup(router->id),
 198                                             -1,
 199                                             SURF_NETWORK_ELEMENT_ROUTER,
 200                                             current_routing);
 201   info->setId(current_routing->parsePU(info));
 202   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 203   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 204
 205   if (router->coord && strcmp(router->coord, "")) {
 206     unsigned int cursor;
 207     char*str;
 208
 209     if (!COORD_ASR_LEVEL)
 210       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 211     /* Pre-parse the host coordinates */
 212     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 213     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 214     xbt_dynar_foreach(ctn_str,cursor, str) {
 215       double val = atof(str);
 216       xbt_dynar_push(ctn,&val);
 217     }
 218     xbt_dynar_shrink(ctn, 0);
 219     xbt_dynar_free(&ctn_str);
 220     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 221     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 222   }
 223 }
 224
 225 /**
 226  * \brief Store the route by calling the set_route function of the current routing component
 227  */
 228 static void parse_E_route(sg_platf_route_cbarg_t route)
 229 {
 230   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
 231              "no defined method \"set_route\" in \"%s\"",
 232              current_routing->name);*/
 233
 234   current_routing->parseRoute(route);
 235 }
 236
 237 /**
 238  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 239  */
 240 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 241 {
 242   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
 243              "no defined method \"set_ASroute\" in \"%s\"",
 244              current_routing->name);*/
 245   current_routing->parseASroute(ASroute);
 246 }
 247
 248 /**
 249  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 250  */
 251 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 252 {
 253   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 254              "Bypassing mechanism not implemented by routing '%s'",
 255              current_routing->name);*/
 256
 257   current_routing->parseBypassroute(route);
 258 }
 259
 260 /**
 261  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 262  */
 263 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
 264 {
 265   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 266              "Bypassing mechanism not implemented by routing '%s'",
 267              current_routing->name);*/
 268   current_routing->parseBypassroute(ASroute);
 269 }
 270
 271 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 272 {
 273   tmgr_trace_t tmgr_trace;
 274   if (!trace->file || strcmp(trace->file, "") != 0) {
 275     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 276   } else if (strcmp(trace->pc_data, "") == 0) {
 277     tmgr_trace = NULL;
 278   } else {
 279     tmgr_trace =
 280           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 281                                      trace->periodicity);
 282   }
 283   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 284 }
 285
 286 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 287 {
 288   xbt_assert(xbt_dict_get_or_null
 289               (traces_set_list, trace_connect->trace),
 290               "Cannot connect trace %s to %s: trace unknown",
 291               trace_connect->trace,
 292               trace_connect->element);
 293
 294   switch (trace_connect->kind) {
 295   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 296     xbt_dict_set(trace_connect_list_host_avail,
 297         trace_connect->trace,
 298         xbt_strdup(trace_connect->element), NULL);
 299     break;
 300   case SURF_TRACE_CONNECT_KIND_POWER:
 301     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 302         xbt_strdup(trace_connect->element), NULL);
 303     break;
 304   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 305     xbt_dict_set(trace_connect_list_link_avail,
 306         trace_connect->trace,
 307         xbt_strdup(trace_connect->element), NULL);
 308     break;
 309   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 310     xbt_dict_set(trace_connect_list_bandwidth,
 311         trace_connect->trace,
 312         xbt_strdup(trace_connect->element), NULL);
 313     break;
 314   case SURF_TRACE_CONNECT_KIND_LATENCY:
 315     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 316         xbt_strdup(trace_connect->element), NULL);
 317     break;
 318   default:
 319         surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 320         trace_connect->trace, trace_connect->element);
 321     break;
 322   }
 323 }
 324
 325 /**
 326  * \brief Make a new routing component to the platform
 327  *
 328  * Add a new autonomous system to the platform. Any elements (such as host,
 329  * router or sub-AS) added after this call and before the corresponding call
 330  * to sg_platf_new_AS_close() will be added to this AS.
 331  *
 332  * Once this function was called, the configuration concerning the used
 333  * models cannot be changed anymore.
 334  *
 335  * @param AS_id name of this autonomous system. Must be unique in the platform
 336  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 337  */
 338 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 339 {
 340   XBT_DEBUG("routing_AS_begin");
 341   routing_model_description_t model = NULL;
 342
 343   xbt_assert(!xbt_lib_get_or_null
 344              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 345              "The AS \"%s\" already exists", AS->id);
 346
 347   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 348                             * controlling the level of configuration to prevent
 349                             * any further config */
 350
 351   /* search the routing model */
 352   switch(AS->routing){
 353     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
 354     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 355     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 356     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 357     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 358     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 359     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 360     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 361     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 362     default: xbt_die("Not a valid model!!!");
 363     break;
 364   }
 365
 366   /* make a new routing component */
 367   As *new_as = model->create();
 368
 369   new_as->p_modelDesc = model;
 370   new_as->p_hierarchy = SURF_ROUTING_NULL;
 371   new_as->p_name = xbt_strdup(AS->id);
 372
 373   RoutingEdge *info = new RoutingEdgeImpl(xbt_strdup(new_as->p_name),
 374                                             -1,
 375                                             SURF_NETWORK_ELEMENT_AS,
 376                                             current_routing);
 377   if (current_routing == NULL && routing_platf->p_root == NULL) {
 378
 379     /* it is the first one */
 380     new_as->p_routingFather = NULL;
 381     routing_platf->p_root = new_as;
 382     info->setId(-1);
 383   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 384
 385     xbt_assert(!xbt_dict_get_or_null
 386                (current_routing->p_routingSons, AS->id),
 387                "The AS \"%s\" already exists", AS->id);
 388     /* it is a part of the tree */
 389     new_as->p_routingFather = current_routing;
 390     /* set the father behavior */
 391     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 392       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 393     /* add to the sons dictionary */
 394     xbt_dict_set(current_routing->p_routingSons, AS->id,
 395                  (void *) new_as, NULL);
 396     /* add to the father element list */
 397     info->setId(current_routing->parseAS(info));
 398   } else {
 399     THROWF(arg_error, 0, "All defined components must belong to a AS");
 400   }
 401
 402   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 403               (void *) info);
 404   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 405
 406   /* set the new current component of the tree */
 407   current_routing = new_as;
 408   current_routing->p_netElem = info;
 409
 410 }
 411
 412 /**
 413  * \brief Specify that the current description of AS is finished
 414  *
 415  * Once you've declared all the content of your AS, you have to close
 416  * it with this call. Your AS is not usable until you call this function.
 417  *
 418  * @fixme: this call is not as robust as wanted: bad things WILL happen
 419  * if you call it twice for the same AS, or if you forget calling it, or
 420  * even if you add stuff to a closed AS
 421  *
 422  */
 423 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
 424 {
 425
 426   if (current_routing == NULL) {
 427     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 428   } else {
 429     if (current_routing->p_modelDesc->end)
 430       current_routing->p_modelDesc->end(current_routing);
 431     current_routing = current_routing->p_routingFather;
 432   }
 433 }
 434
 435 /* Aux Business methods */
 436
 437 /**
 438  * \brief Get the AS father and the first elements of the chain
 439  *
 440  * \param src the source host name
 441  * \param dst the destination host name
 442  *
 443  * Get the common father of the to processing units, and the first different
 444  * father in the chain
 445  */
 446 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 447                             AS_t * res_father,
 448                             AS_t * res_src,
 449                             AS_t * res_dst)
 450 {
 451   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 452 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 453   As *src_as, *dst_as;
 454   As *path_src[ELEMENTS_FATHER_MAXDEPTH];
 455   As *path_dst[ELEMENTS_FATHER_MAXDEPTH];
 456   int index_src = 0;
 457   int index_dst = 0;
 458   As *current;
 459   As *current_src;
 460   As *current_dst;
 461   As *father;
 462
 463   /* (1) find the as where the src and dst are located */
 464   sg_routing_edge_t src_data = src;
 465   sg_routing_edge_t dst_data = dst;
 466   src_as = src_data->getRcComponent();
 467   dst_as = dst_data->getRcComponent();
 468 #ifndef NDEBUG
 469   char* src_name = src_data->getName();
 470   char* dst_name = dst_data->getName();
 471 #endif
 472
 473   xbt_assert(src_as && dst_as,
 474              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 475
 476   /* (2) find the path to the root routing component */
 477   for (current = src_as; current != NULL; current = current->p_routingFather) {
 478     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 479       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 480     path_src[index_src++] = current;
 481   }
 482   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 483     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 484       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 485     path_dst[index_dst++] = current;
 486   }
 487
 488   /* (3) find the common father */
 489   do {
 490     current_src = path_src[--index_src];
 491     current_dst = path_dst[--index_dst];
 492   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 493
 494   /* (4) they are not in the same routing component, make the path */
 495   if (current_src == current_dst)
 496     father = current_src;
 497   else
 498     father = path_src[index_src + 1];
 499
 500   /* (5) result generation */
 501   *res_father = father;         /* first the common father of src and dst */
 502   *res_src = current_src;       /* second the first different father of src */
 503   *res_dst = current_dst;       /* three  the first different father of dst */
 504
 505 #undef ELEMENTS_FATHER_MAXDEPTH
 506 }
 507
 508 /* Global Business methods */
 509
 510 /**
 511  * \brief Recursive function for get_route_latency
 512  *
 513  * \param src the source host name
 514  * \param dst the destination host name
 515  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 516  * \param *latency the latency, if needed
 517  *
 518  * This function is called by "get_route" and "get_latency". It allows to walk
 519  * recursively through the ASes tree.
 520  */
 521 static void _get_route_and_latency(RoutingEdge *src, RoutingEdge *dst,
 522                                    xbt_dynar_t * links, double *latency)
 523 {
 524   s_sg_platf_route_cbarg_t route = SG_PLATF_ROUTE_INITIALIZER;
 525   memset(&route,0,sizeof(route));
 526
 527   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 528   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 529
 530   /* Find how src and dst are interconnected */
 531   As *common_father, *src_father, *dst_father;
 532   elements_father(src, dst, &common_father, &src_father, &dst_father);
 533   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 534       common_father->p_name, src_father->p_name, dst_father->p_name);
 535
 536   /* Check whether a direct bypass is defined */
 537   sg_platf_route_cbarg_t e_route_bypass = NULL;
 538   //FIXME:REMOVE:if (common_father->get_bypass_route)
 539
 540   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 541
 542   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 543   if (e_route_bypass) {
 544     xbt_dynar_merge(links, &e_route_bypass->link_list);
 545     generic_free_route(e_route_bypass);
 546     return;
 547   }
 548
 549   /* If src and dst are in the same AS, life is good */
 550   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 551     route.link_list = *links;
 552     common_father->getRouteAndLatency(src, dst, &route, latency);
 553     // if vivaldi latency+=vivaldi(src,dst)
 554     return;
 555   }
 556
 557   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 558
 559   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 560   // Find the net_card corresponding to father
 561   RoutingEdge *src_father_net_elm = src_father->p_netElem;
 562   RoutingEdge *dst_father_net_elm = dst_father->p_netElem;
 563
 564   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 565                                     &route, latency);
 566
 567   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 568       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 569
 570   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 571   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 572
 573   /* If source gateway is not our source, we have to recursively find our way up to this point */
 574   if (src != src_gateway_net_elm)
 575     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 576   xbt_dynar_merge(links, &route.link_list);
 577
 578   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 579   if (dst_gateway_net_elm != dst)
 580     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 581
 582   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 583 }
 584
 585 AS_t surf_platf_get_root(routing_platf_t platf){
 586   return platf->p_root;
 587 }
 588
 589 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
 590   return edge->getRcType();
 591 }
 592
 593
 594 /**
 595  * \brief Find a route between hosts
 596  *
 597  * \param src the network_element_t for src host
 598  * \param dst the network_element_t for dst host
 599  * \param route where to store the list of links.
 600  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 601  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 602  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 603  * \pre route!=NULL
 604  *
 605  * walk through the routing components tree and find a route between hosts
 606  * by calling the differents "get_route" functions in each routing component.
 607  */
 608 void RoutingPlatf::getRouteAndLatency(RoutingEdge *src, RoutingEdge *dst,
 609                                    xbt_dynar_t* route, double *latency)
 610 {
 611   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 612   if (!*route) {
 613     xbt_dynar_reset(routing_platf->p_lastRoute);
 614     *route = routing_platf->p_lastRoute;
 615   }
 616
 617   _get_route_and_latency(src, dst, route, latency);
 618
 619   xbt_assert(!latency || *latency >= 0.0,
 620              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 621 }
 622
 623 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 624   return recursiveGetOneLinkRoutes(p_root);
 625 }
 626
 627 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(As *rc)
 628 {
 629   xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
 630
 631   //adding my one link routes
 632   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 633   if (onelink_mine)
 634     xbt_dynar_merge(&ret,&onelink_mine);
 635
 636   //recursing
 637   char *key;
 638   xbt_dict_cursor_t cursor = NULL;
 639   AS_t rc_child;
 640   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 641     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 642     if (onelink_child)
 643       xbt_dynar_merge(&ret,&onelink_child);
 644   }
 645   return ret;
 646 }
 647
 648 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 649 {
 650   RoutingEdge *rc = sg_routing_edge_by_name_or_null(name);
 651   if (rc)
 652     return rc->getRcType();
 653
 654   return SURF_NETWORK_ELEMENT_NULL;
 655 }
 656
 657 /**
 658  * \brief Generic method: create the global routing schema
 659  *
 660  * Make a global routing structure and set all the parsing functions.
 661  */
 662 void routing_model_create( void *loopback)
 663 {
 664   /* config the uniq global routing */
 665   routing_platf = new RoutingPlatf();
 666   routing_platf->p_root = NULL;
 667   routing_platf->p_loopback = loopback;
 668   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 669   /* no current routing at moment */
 670   current_routing = NULL;
 671 }
 672
 673
 674 /* ************************************************** */
 675 /* ********** PATERN FOR NEW ROUTING **************** */
 676
 677 /* The minimal configuration of a new routing model need the next functions,
 678  * also you need to set at the start of the file, the new model in the model
 679  * list. Remember keep the null ending of the list.
 680  */
 681 /*** Routing model structure ***/
 682 // typedef struct {
 683 //   s_routing_component_t generic_routing;
 684 //   /* things that your routing model need */
 685 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 686
 687 /*** Parse routing model functions ***/
 688 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 689 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 690 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 691 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 692 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 693
 694 /*** Business methods ***/
 695 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 696 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 697 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 698
 699 /*** Creation routing model functions ***/
 700 // static void* model_NEW_create(void) {
 701 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 702 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 703 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 704 //   new_component->generic_routing.set_route = model_NEW_set_route;
 705 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 706 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 707 //   new_component->generic_routing.get_route = NEW_get_route;
 708 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 709 //   new_component->generic_routing.finalize = NEW_finalize;
 710 //   /* initialization of internal structures */
 711 //   return new_component;
 712 // } /* mandatory */
 713 // static void  model_NEW_load(void) {}   /* mandatory */
 714 // static void  model_NEW_unload(void) {} /* mandatory */
 715 // static void  model_NEW_end(void) {}    /* mandatory */
 716
 717 /* ************************************************************************** */
 718 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 719
 720 void routing_cluster_add_backbone(void* bb) {
 721   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 722         "You have to be in model Cluster to use tag backbone!");
 723   xbt_assert(!static_cast<AsCluster*>(current_routing)->p_backbone, "The backbone link is already defined!");
 724   static_cast<AsCluster*>(current_routing)->p_backbone = static_cast<Link*>(bb);
 725   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 726 }
 727
 728 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 729 {
 730   int start, end, i;
 731   char *groups , *host_id , *link_id = NULL;
 732   unsigned int iter;
 733   xbt_dynar_t radical_elements;
 734   xbt_dynar_t radical_ends;
 735
 736   //Make all hosts
 737   radical_elements = xbt_str_split(cabinet->radical, ",");
 738   xbt_dynar_foreach(radical_elements, iter, groups) {
 739
 740     radical_ends = xbt_str_split(groups, "-");
 741     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 742
 743     switch (xbt_dynar_length(radical_ends)) {
 744     case 1:
 745       end = start;
 746       break;
 747     case 2:
 748       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 749       break;
 750     default:
 751       surf_parse_error("Malformed radical");
 752       break;
 753     }
 754     s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 755     memset(&host, 0, sizeof(host));
 756     host.initial_state = SURF_RESOURCE_ON;
 757     host.pstate        = 0;
 758     host.power_scale   = 1.0;
 759     host.core_amount   = 1;
 760
 761     s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 762     memset(&link, 0, sizeof(link));
 763     link.state     = SURF_RESOURCE_ON;
 764     link.policy    = SURF_LINK_FULLDUPLEX;
 765     link.latency   = cabinet->lat;
 766     link.bandwidth = cabinet->bw;
 767
 768     s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
 769     memset(&host_link, 0, sizeof(host_link));
 770
 771     for (i = start; i <= end; i++) {
 772       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 773       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 774       host.id                      = host_id;
 775       link.id                      = link_id;
 776       host.power_peak = xbt_dynar_new(sizeof(double), NULL);
 777       xbt_dynar_push(host.power_peak,&cabinet->power);
 778       sg_platf_new_host(&host);
 779       xbt_dynar_free(&host.power_peak);
 780       sg_platf_new_link(&link);
 781
 782       char* link_up       = bprintf("%s_UP",link_id);
 783       char* link_down     = bprintf("%s_DOWN",link_id);
 784       host_link.id        = host_id;
 785       host_link.link_up   = link_up;
 786       host_link.link_down = link_down;
 787       sg_platf_new_host_link(&host_link);
 788
 789       free(host_id);
 790       free(link_id);
 791       free(link_up);
 792       free(link_down);
 793     }
 794
 795     xbt_dynar_free(&radical_ends);
 796   }
 797   xbt_dynar_free(&radical_elements);
 798 }
 799
 800 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 801 {
 802   char *host_id, *groups, *link_id = NULL;
 803   xbt_dict_t patterns = NULL;
 804   int rankId=0;
 805
 806   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 807   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 808
 809   unsigned int iter;
 810   int start, end, i;
 811   xbt_dynar_t radical_elements;
 812   xbt_dynar_t radical_ends;
 813
 814   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 815       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 816     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 817     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 818     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 819     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 820   }
 821
 822   /* parse the topology attribute. If we are not in a flat cluster,
 823    * switch to the right mode and initialize the routing with
 824    * the parameters in topo_parameters attribute
 825    */
 826   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 827   AS.id = cluster->id;
 828
 829   if(cluster->topology == SURF_CLUSTER_TORUS){
 830     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 831     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 832     sg_platf_new_AS_begin(&AS);
 833     ((AsClusterTorus*)current_routing)->parse_specific_arguments(cluster);
 834   }
 835   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 836     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 837     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 838     sg_platf_new_AS_begin(&AS);
 839     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 840   }
 841
 842   else{
 843     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 844     AS.routing = A_surfxml_AS_routing_Cluster;
 845     sg_platf_new_AS_begin(&AS);
 846   }
 847
 848   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 849       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 850       ((AsCluster*)current_routing)->p_has_loopback=1;
 851   }
 852
 853   if(cluster->limiter_link!=0){
 854       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 855       ((AsCluster*)current_routing)->p_has_limiter=1;
 856   }
 857
 858
 859
 860   current_routing->p_linkUpDownList
 861             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 862
 863   //Make all hosts
 864   radical_elements = xbt_str_split(cluster->radical, ",");
 865   xbt_dynar_foreach(radical_elements, iter, groups) {
 866
 867     radical_ends = xbt_str_split(groups, "-");
 868     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 869
 870     switch (xbt_dynar_length(radical_ends)) {
 871     case 1:
 872       end = start;
 873       break;
 874     case 2:
 875       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 876       break;
 877     default:
 878       surf_parse_error("Malformed radical");
 879       break;
 880     }
 881     for (i = start; i <= end; i++) {
 882       host_id =
 883           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 884       link_id = bprintf("%s_link_%d", cluster->id, i);
 885
 886       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 887
 888       memset(&host, 0, sizeof(host));
 889       host.id = host_id;
 890       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 891           xbt_dict_cursor_t cursor=NULL;
 892           char *key,*data;
 893           host.properties = xbt_dict_new();
 894
 895           xbt_dict_foreach(cluster->properties,cursor,key,data) {
 896                   xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 897           }
 898       }
 899       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 900         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 901         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 902         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 903         host.power_trace = tmgr_trace_new_from_file(avail_file);
 904         xbt_free(avail_file);
 905       } else {
 906         XBT_DEBUG("\tavailability_file=\"\"");
 907       }
 908
 909       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 910         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 911         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 912         host.state_trace = tmgr_trace_new_from_file(avail_file);
 913         xbt_free(avail_file);
 914       } else {
 915         XBT_DEBUG("\tstate_file=\"\"");
 916       }
 917
 918       host.power_peak = xbt_dynar_new(sizeof(double), NULL);
 919       xbt_dynar_push(host.power_peak,&cluster->power);
 920       host.pstate = 0;
 921
 922       //host.power_peak = cluster->power;
 923       host.power_scale = 1.0;
 924       host.core_amount = cluster->core_amount;
 925       host.initial_state = SURF_RESOURCE_ON;
 926       host.coord = "";
 927       sg_platf_new_host(&host);
 928       xbt_dynar_free(&host.power_peak);
 929       XBT_DEBUG("</host>");
 930
 931       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 932                 cluster->bw, cluster->lat);
 933
 934
 935       s_surf_parsing_link_up_down_t info_lim, info_loop;
 936       // All links are saved in a matrix;
 937       // every row describes a single node; every node
 938       // may have multiple links.
 939       // the first column may store a link from x to x if p_has_loopback is set
 940       // the second column may store a limiter link if p_has_limiter is set
 941       // other columns are to store one or more link for the node
 942
 943       //add a loopback link
 944       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 945         char *tmp_link = bprintf("%s_loopback", link_id);
 946         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 947                 cluster->limiter_link);
 948
 949
 950         memset(&link, 0, sizeof(link));
 951         link.id        = tmp_link;
 952         link.bandwidth = cluster->loopback_bw;
 953         link.latency   = cluster->loopback_lat;
 954         link.state     = SURF_RESOURCE_ON;
 955         link.policy    = SURF_LINK_FATPIPE;
 956         sg_platf_new_link(&link);
 957         info_loop.link_up   = Link::byName(tmp_link);
 958         info_loop.link_down = info_loop.link_up;
 959         free(tmp_link);
 960         xbt_dynar_set(current_routing->p_linkUpDownList, rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node, &info_loop);
 961       }
 962
 963       //add a limiter link (shared link to account for maximal bandwidth of the node)
 964       if(cluster->limiter_link!=0){
 965         char *tmp_link = bprintf("%s_limiter", link_id);
 966         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 967                 cluster->limiter_link);
 968
 969
 970         memset(&link, 0, sizeof(link));
 971         link.id = tmp_link;
 972         link.bandwidth = cluster->limiter_link;
 973         link.latency = 0;
 974         link.state = SURF_RESOURCE_ON;
 975         link.policy = SURF_LINK_SHARED;
 976         sg_platf_new_link(&link);
 977         info_lim.link_up = Link::byName(tmp_link);
 978         info_lim.link_down = info_lim.link_up;
 979         free(tmp_link);
 980         xbt_dynar_set(current_routing->p_linkUpDownList,
 981             rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node + static_cast<AsCluster*>(current_routing)->p_has_loopback ,
 982             &info_lim);
 983
 984       }
 985
 986
 987       //call the cluster function that adds the others links
 988       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 989         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 990       }
 991       else {
 992       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 993                   static_cast<AsCluster*>(current_routing)->p_nb_links_per_node
 994           + static_cast<AsCluster*>(current_routing)->p_has_loopback
 995           + static_cast<AsCluster*>(current_routing)->p_has_limiter );
 996       }
 997       xbt_free(link_id);
 998       xbt_free(host_id);
 999       rankId++;
1000     }
1001
1002     xbt_dynar_free(&radical_ends);
1003   }
1004   xbt_dynar_free(&radical_elements);
1005
1006   // For fat trees, the links must be created once all nodes have been added
1007   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
1008     static_cast<AsClusterFatTree*>(current_routing)->create_links();
1009   }
1010   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
1011   // and it's very useful to connect clusters together
1012   XBT_DEBUG(" ");
1013   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
1014   char *newid = NULL;
1015   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
1016   memset(&router, 0, sizeof(router));
1017   router.id = cluster->router_id;
1018   router.coord = "";
1019   if (!router.id || !strcmp(router.id, ""))
1020     router.id = newid =
1021         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
1022                 cluster->suffix);
1023   sg_platf_new_router(&router);
1024   ((AsCluster*)current_routing)->p_router = (RoutingEdge*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1025   free(newid);
1026
1027   //Make the backbone
1028   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
1029     char *link_backbone = bprintf("%s_backbone", cluster->id);
1030     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1031               cluster->bb_bw, cluster->bb_lat);
1032
1033     memset(&link, 0, sizeof(link));
1034     link.id        = link_backbone;
1035     link.bandwidth = cluster->bb_bw;
1036     link.latency   = cluster->bb_lat;
1037     link.state     = SURF_RESOURCE_ON;
1038     link.policy    = cluster->bb_sharing_policy;
1039
1040     sg_platf_new_link(&link);
1041
1042     routing_cluster_add_backbone(Link::byName(link_backbone));
1043
1044     free(link_backbone);
1045   }
1046
1047   XBT_DEBUG("</AS>");
1048   sg_platf_new_AS_end();
1049   XBT_DEBUG(" ");
1050   xbt_dict_free(&patterns); // no op if it were never set
1051 }
1052
1053 static void routing_parse_postparse(void) {
1054   xbt_dict_free(&random_value);
1055 }
1056
1057 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1058 {
1059   char *host_id = NULL;
1060   char *link_id = NULL;
1061   char *router_id = NULL;
1062
1063   XBT_DEBUG(" ");
1064   host_id = HOST_PEER(peer->id);
1065   link_id = LINK_PEER(peer->id);
1066   router_id = ROUTER_PEER(peer->id);
1067
1068   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1069   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1070   AS.id                    = peer->id;
1071   AS.routing               = A_surfxml_AS_routing_Cluster;
1072   sg_platf_new_AS_begin(&AS);
1073
1074   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1075
1076   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1077   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
1078   memset(&host, 0, sizeof(host));
1079   host.initial_state = SURF_RESOURCE_ON;
1080   host.id = host_id;
1081
1082   host.power_peak = xbt_dynar_new(sizeof(double), NULL);
1083   xbt_dynar_push(host.power_peak,&peer->power);
1084   host.pstate = 0;
1085   //host.power_peak = peer->power;
1086   host.power_scale = 1.0;
1087   host.power_trace = peer->availability_trace;
1088   host.state_trace = peer->state_trace;
1089   host.core_amount = 1;
1090   sg_platf_new_host(&host);
1091   xbt_dynar_free(&host.power_peak);
1092
1093   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
1094   memset(&link, 0, sizeof(link));
1095   link.state   = SURF_RESOURCE_ON;
1096   link.policy  = SURF_LINK_SHARED;
1097   link.latency = peer->lat;
1098
1099   char* link_up = bprintf("%s_UP",link_id);
1100   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1101             peer->bw_out, peer->lat);
1102   link.id = link_up;
1103   link.bandwidth = peer->bw_out;
1104   sg_platf_new_link(&link);
1105
1106   char* link_down = bprintf("%s_DOWN",link_id);
1107   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1108             peer->bw_in, peer->lat);
1109   link.id = link_down;
1110   link.bandwidth = peer->bw_in;
1111   sg_platf_new_link(&link);
1112
1113   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1114   s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
1115   memset(&host_link, 0, sizeof(host_link));
1116   host_link.id        = host_id;
1117   host_link.link_up   = link_up;
1118   host_link.link_down = link_down;
1119   sg_platf_new_host_link(&host_link);
1120
1121   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1122   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
1123   memset(&router, 0, sizeof(router));
1124   router.id = router_id;
1125   router.coord = peer->coord;
1126   sg_platf_new_router(&router);
1127   static_cast<AsCluster*>(current_routing)->p_router = static_cast<RoutingEdge*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1128
1129   XBT_DEBUG("</AS>");
1130   sg_platf_new_AS_end();
1131   XBT_DEBUG(" ");
1132
1133   //xbt_dynar_free(&tab_elements_num);
1134   free(router_id);
1135   free(host_id);
1136   free(link_id);
1137   free(link_up);
1138   free(link_down);
1139 }
1140
1141 // static void routing_parse_Srandom(void)
1142 // {
1143 //   double mean, std, min, max, seed;
1144 //   char *random_id = A_surfxml_random_id;
1145 //   char *random_radical = A_surfxml_random_radical;
1146 //   char *rd_name = NULL;
1147 //   char *rd_value;
1148 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1149 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1150 //   min = surf_parse_get_double(A_surfxml_random_min);
1151 //   max = surf_parse_get_double(A_surfxml_random_max);
1152 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1153
1154 //   double res = 0;
1155 //   int i = 0;
1156 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1157 //   char *tmpbuf;
1158
1159 //   xbt_dynar_t radical_elements;
1160 //   unsigned int iter;
1161 //   char *groups;
1162 //   int start, end;
1163 //   xbt_dynar_t radical_ends;
1164
1165 //   switch (A_surfxml_random_generator) {
1166 //   case AU_surfxml_random_generator:
1167 //   case A_surfxml_random_generator_NONE:
1168 //     random->generator = NONE;
1169 //     break;
1170 //   case A_surfxml_random_generator_DRAND48:
1171 //     random->generator = DRAND48;
1172 //     break;
1173 //   case A_surfxml_random_generator_RAND:
1174 //     random->generator = RAND;
1175 //     break;
1176 //   case A_surfxml_random_generator_RNGSTREAM:
1177 //     random->generator = RNGSTREAM;
1178 //     break;
1179 //   default:
1180 //     surf_parse_error("Invalid random generator");
1181 //     break;
1182 //   }
1183 //   random->seed = seed;
1184 //   random->min = min;
1185 //   random->max = max;
1186
1187 //   /* Check user stupidities */
1188 //   if (max < min)
1189 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1190 //   if (mean < min)
1191 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1192 //   if (mean > max)
1193 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1194
1195 //   /* normalize the mean and standard deviation before storing */
1196 //   random->mean = (mean - min) / (max - min);
1197 //   random->std = std / (max - min);
1198
1199 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1200 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1201 //            random->mean, random->std);
1202
1203 //   XBT_DEBUG
1204 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1205 //        random_id, random->min, random->max, random->mean, random->std,
1206 //        (int)random->generator, random->seed, random_radical);
1207
1208 //   if (!random_value)
1209 //     random_value = xbt_dict_new_homogeneous(free);
1210
1211 //   if (!strcmp(random_radical, "")) {
1212 //     res = random_generate(random);
1213 //     rd_value = bprintf("%f", res);
1214 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1215 //   } else {
1216 //     radical_elements = xbt_str_split(random_radical, ",");
1217 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1218 //       radical_ends = xbt_str_split(groups, "-");
1219 //       switch (xbt_dynar_length(radical_ends)) {
1220 //       case 1:
1221 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1222 //                    "Custom Random '%s' already exists !", random_id);
1223 //         res = random_generate(random);
1224 //         tmpbuf =
1225 //             bprintf("%s%d", random_id,
1226 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1227 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1228 //         xbt_free(tmpbuf);
1229 //         break;
1230
1231 //       case 2:
1232 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1233 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1234 //         for (i = start; i <= end; i++) {
1235 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1236 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1237 //                                                                     random_id,
1238 //                                                                     i));
1239 //           res = random_generate(random);
1240 //           tmpbuf = bprintf("%s%d", random_id, i);
1241 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1242 //           xbt_free(tmpbuf);
1243 //         }
1244 //         break;
1245 //       default:
1246 //         XBT_CRITICAL("Malformed radical");
1247 //         break;
1248 //       }
1249 //       res = random_generate(random);
1250 //       rd_name = bprintf("%s_router", random_id);
1251 //       rd_value = bprintf("%f", res);
1252 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1253
1254 //       xbt_dynar_free(&radical_ends);
1255 //     }
1256 //     free(rd_name);
1257 //     xbt_dynar_free(&radical_elements);
1258 //   }
1259 // }
1260
1261 static void check_disk_attachment()
1262 {
1263   xbt_lib_cursor_t cursor;
1264   char *key;
1265   void **data;
1266   RoutingEdge *host_elm;
1267   xbt_lib_foreach(storage_lib, cursor, key, data) {
1268     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1269           Storage *storage = static_cast<Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1270           host_elm = sg_routing_edge_by_name_or_null(storage->p_attach);
1271           if(!host_elm)
1272                   surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1273     }
1274   }
1275 }
1276
1277 void routing_register_callbacks()
1278 {
1279   sg_platf_router_add_cb(parse_S_router);
1280   sg_platf_host_link_add_cb(parse_S_host);
1281   sg_platf_route_add_cb(parse_E_route);
1282   sg_platf_ASroute_add_cb(parse_E_ASroute);
1283   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1284   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1285
1286   sg_platf_cluster_add_cb(routing_parse_cluster);
1287   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1288
1289   sg_platf_peer_add_cb(routing_parse_peer);
1290   sg_platf_postparse_add_cb(routing_parse_postparse);
1291   sg_platf_postparse_add_cb(check_disk_attachment);
1292
1293   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1294   sg_platf_AS_end_add_cb(routing_AS_end);
1295   sg_platf_AS_begin_add_cb(routing_AS_begin);
1296
1297   sg_platf_trace_add_cb(routing_parse_trace);
1298   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1299
1300   instr_routing_define_callbacks();
1301 }
1302
1303 /**
1304  * \brief Recursive function for finalize
1305  *
1306  * \param rc the source host name
1307  *
1308  * This fuction is call by "finalize". It allow to finalize the
1309  * AS or routing components. It delete all the structures.
1310  */
1311 static void finalize_rec(As *as) {
1312   xbt_dict_cursor_t cursor = NULL;
1313   char *key;
1314   AS_t elem;
1315
1316   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1317     finalize_rec(elem);
1318   }
1319
1320   delete as;;
1321 }
1322
1323 /** \brief Frees all memory allocated by the routing module */
1324 void routing_exit(void) {
1325   delete routing_platf;
1326 }
1327
1328 RoutingPlatf::~RoutingPlatf()
1329 {
1330         xbt_dynar_free(&p_lastRoute);
1331         finalize_rec(p_root);
1332 }
1333
1334 AS_t surf_AS_get_routing_root() {
1335   return routing_platf->p_root;
1336 }
1337
1338 const char *surf_AS_get_name(As *as) {
1339   return as->p_name;
1340 }
1341
1342 static As *surf_AS_recursive_get_by_name(As *current, const char * name) {
1343   xbt_dict_cursor_t cursor = NULL;
1344   char *key;
1345   AS_t elem;
1346   As *tmp = NULL;
1347
1348   if(!strcmp(current->p_name, name))
1349     return current;
1350
1351   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1352     tmp = surf_AS_recursive_get_by_name(elem, name);
1353     if(tmp != NULL ) {
1354         break;
1355     }
1356   }
1357   return tmp;
1358 }
1359
1360
1361 As *surf_AS_get_by_name(const char * name) {
1362   As *as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1363   if(as == NULL)
1364     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1365   return as;
1366 }
1367
1368 xbt_dict_t surf_AS_get_routing_sons(As *as) {
1369   return as->p_routingSons;
1370 }
1371
1372 const char *surf_AS_get_model(As *as) {
1373   return as->p_modelDesc->name;
1374 }
1375
1376 xbt_dynar_t surf_AS_get_hosts(As *as) {
1377   xbt_dynar_t elms = as->p_indexNetworkElm;
1378   sg_routing_edge_t relm;
1379   xbt_dictelm_t delm;
1380   int index;
1381   int count = xbt_dynar_length(elms);
1382   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1383   for (index = 0; index < count; index++) {
1384      relm = xbt_dynar_get_as(elms, index, RoutingEdge*);
1385      delm = xbt_lib_get_elm_or_null(host_lib, relm->getName());
1386      if (delm!=NULL) {
1387        xbt_dynar_push(res, &delm);
1388      }
1389   }
1390   return res;
1391 }
1392
1393 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1394   as->getGraph(graph, nodes, edges);
1395 }