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  * Callbacks *
  21  *************/
  22
  23 surf_callback(void, RoutingEdge*) routingEdgeCreatedCallbacks;
  24
  25 /**
  26  * @ingroup SURF_build_api
  27  * @brief A library containing all known hosts
  28  */
  29 xbt_lib_t host_lib;
  30
  31 int SURF_HOST_LEVEL;            //Surf host level
  32 int COORD_HOST_LEVEL=0;         //Coordinates level
  33 int NS3_HOST_LEVEL;             //host node for ns3
  34
  35 int MSG_FILE_LEVEL;             //Msg file level
  36
  37 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  38 int MSG_STORAGE_LEVEL;          //Msg storage level
  39 int SD_STORAGE_LEVEL;           //Simdag storage level
  40
  41 xbt_lib_t as_router_lib;
  42 int ROUTING_ASR_LEVEL;          //Routing level
  43 int COORD_ASR_LEVEL;            //Coordinates level
  44 int NS3_ASR_LEVEL;              //host node for ns3
  45 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  46
  47 static xbt_dict_t random_value = NULL;
  48
  49
  50 /** @brief Retrieve a routing edge from its name
  51  *
  52  * Routing edges are either host and routers, whatever
  53  */
  54 RoutingEdge *sg_routing_edge_by_name_or_null(const char *name) {
  55   sg_host_t h = sg_host_by_name(name);
  56   RoutingEdge *net_elm = h==NULL?NULL: sg_host_edge(h);
  57   if (!net_elm)
  58         net_elm = (RoutingEdge*) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  59   return net_elm;
  60 }
  61
  62 /* Global vars */
  63 RoutingPlatf *routing_platf = NULL;
  64
  65 /* global parse functions */
  66 extern xbt_dynar_t mount_list;
  67
  68 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  69
  70 /** The current AS in the parsing */
  71 static As *current_routing = NULL;
  72 As* routing_get_current()
  73 {
  74   return current_routing;
  75 }
  76
  77 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  78 // static void routing_parse_Srandom(void);        /* random bypass */
  79
  80 static void routing_parse_postparse(void);
  81
  82 /* this lines are only for replace use like index in the model table */
  83 typedef enum {
  84   SURF_MODEL_FULL = 0,
  85   SURF_MODEL_FLOYD,
  86   SURF_MODEL_DIJKSTRA,
  87   SURF_MODEL_DIJKSTRACACHE,
  88   SURF_MODEL_NONE,
  89   SURF_MODEL_VIVALDI,
  90   SURF_MODEL_CLUSTER,
  91   SURF_MODEL_TORUS_CLUSTER,
  92   SURF_MODEL_FAT_TREE_CLUSTER,
  93 } e_routing_types;
  94
  95 struct s_model_type routing_models[] = {
  96   {"Full",
  97    "Full routing data (fast, large memory requirements, fully expressive)",
  98    model_full_create, model_full_end},
  99   {"Floyd",
 100    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
 101    model_floyd_create, model_floyd_end},
 102   {"Dijkstra",
 103    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
 104    model_dijkstra_create, model_dijkstra_both_end},
 105   {"DijkstraCache",
 106    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
 107    model_dijkstracache_create, model_dijkstra_both_end},
 108   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
 109    model_none_create,  NULL},
 110   {"Vivaldi", "Vivaldi routing",
 111    model_vivaldi_create, NULL},
 112   {"Cluster", "Cluster routing",
 113    model_cluster_create, NULL},
 114   {"Torus_Cluster", "Torus Cluster routing",
 115    model_torus_cluster_create, NULL},
 116   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
 117    model_fat_tree_cluster_create, NULL},
 118   {NULL, NULL, NULL, NULL}
 119 };
 120
 121 /**
 122  * \brief Add a "host_link" to the network element list
 123  */
 124 static void parse_S_host(sg_platf_host_link_cbarg_t host)
 125 {
 126   RoutingEdge *info = sg_host_edge(sg_host_by_name(host->id));
 127   xbt_assert(info, "Host '%s' not found!", host->id);
 128   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 129       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 130       "You have to be in model Cluster to use tag host_link!");
 131
 132   s_surf_parsing_link_up_down_t link_up_down;
 133   link_up_down.link_up = Link::byName(host->link_up);
 134   link_up_down.link_down = Link::byName(host->link_down);
 135
 136   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 137   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 138
 139   if(!current_routing->p_linkUpDownList)
 140     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 141
 142   // If dynar is is greater than edge id and if the host_link is already defined
 143   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
 144       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
 145         surf_parse_error("Host_link for '%s' is already defined!",host->id);
 146
 147   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
 148   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
 149 }
 150
 151 /**
 152  * \brief Add a "host" to the network element list
 153  */
 154 RoutingEdge *routing_add_host(As* current_routing, sg_platf_host_cbarg_t host)
 155 {
 156   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 157     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 158   xbt_assert(!sg_host_by_name(host->id),
 159                      "Reading a host, processing unit \"%s\" already exists", host->id);
 160
 161   RoutingEdge *routingEdge = new RoutingEdgeImpl(xbt_strdup(host->id),
 162                                                     -1,
 163                                                     SURF_NETWORK_ELEMENT_HOST,
 164                                                     current_routing);
 165   routingEdge->setId(current_routing->parsePU(routingEdge));
 166   sg_host_edge_set(sg_host_by_name_or_create(host->id), routingEdge);
 167   XBT_DEBUG("Having set name '%s' id '%d'", host->id, routingEdge->getId());
 168   routingEdgeCreatedCallbacks(routingEdge);
 169
 170   if(mount_list){
 171     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 172     mount_list = NULL;
 173   }
 174
 175   if (host->coord && strcmp(host->coord, "")) {
 176     unsigned int cursor;
 177     char*str;
 178
 179     if (!COORD_HOST_LEVEL)
 180       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 181     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 182     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 183     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 184     xbt_dynar_foreach(ctn_str,cursor, str) {
 185       double val = atof(str);
 186       xbt_dynar_push(ctn,&val);
 187     }
 188     xbt_dynar_shrink(ctn, 0);
 189     xbt_dynar_free(&ctn_str);
 190     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 191     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 192   }
 193
 194   return routingEdge;
 195 }
 196
 197 /**
 198  * \brief Add a "router" to the network element list
 199  */
 200 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 201 {
 202   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 203     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 204   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 205              "Reading a router, processing unit \"%s\" already exists",
 206              router->id);
 207
 208   RoutingEdge *info = new RoutingEdgeImpl(xbt_strdup(router->id),
 209                                             -1,
 210                                             SURF_NETWORK_ELEMENT_ROUTER,
 211                                             current_routing);
 212   info->setId(current_routing->parsePU(info));
 213   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 214   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 215   routingEdgeCreatedCallbacks(info);
 216
 217   if (router->coord && strcmp(router->coord, "")) {
 218     unsigned int cursor;
 219     char*str;
 220
 221     if (!COORD_ASR_LEVEL)
 222       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 223     /* Pre-parse the host coordinates */
 224     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 225     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 226     xbt_dynar_foreach(ctn_str,cursor, str) {
 227       double val = atof(str);
 228       xbt_dynar_push(ctn,&val);
 229     }
 230     xbt_dynar_shrink(ctn, 0);
 231     xbt_dynar_free(&ctn_str);
 232     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 233     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 234   }
 235
 236   unsigned int iterator;
 237   sg_platf_router_cb_t fun;
 238   xbt_dynar_foreach(sg_platf_router_cb_list, iterator, fun) {
 239     fun(router);
 240   }
 241 }
 242
 243 /**
 244  * \brief Store the route by calling the set_route function of the current routing component
 245  */
 246 static void parse_E_route(sg_platf_route_cbarg_t route)
 247 {
 248   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
 249              "no defined method \"set_route\" in \"%s\"",
 250              current_routing->name);*/
 251
 252   current_routing->parseRoute(route);
 253 }
 254
 255 /**
 256  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 257  */
 258 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 259 {
 260   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
 261              "no defined method \"set_ASroute\" in \"%s\"",
 262              current_routing->name);*/
 263   current_routing->parseASroute(ASroute);
 264 }
 265
 266 /**
 267  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 268  */
 269 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 270 {
 271   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 272              "Bypassing mechanism not implemented by routing '%s'",
 273              current_routing->name);*/
 274
 275   current_routing->parseBypassroute(route);
 276 }
 277
 278 /**
 279  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 280  */
 281 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
 282 {
 283   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 284              "Bypassing mechanism not implemented by routing '%s'",
 285              current_routing->name);*/
 286   current_routing->parseBypassroute(ASroute);
 287 }
 288
 289 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 290 {
 291   tmgr_trace_t tmgr_trace;
 292   if (!trace->file || strcmp(trace->file, "") != 0) {
 293     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 294   } else if (strcmp(trace->pc_data, "") == 0) {
 295     tmgr_trace = NULL;
 296   } else {
 297     tmgr_trace =
 298           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 299                                      trace->periodicity);
 300   }
 301   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 302 }
 303
 304 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 305 {
 306   xbt_assert(xbt_dict_get_or_null
 307               (traces_set_list, trace_connect->trace),
 308               "Cannot connect trace %s to %s: trace unknown",
 309               trace_connect->trace,
 310               trace_connect->element);
 311
 312   switch (trace_connect->kind) {
 313   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 314     xbt_dict_set(trace_connect_list_host_avail,
 315         trace_connect->trace,
 316         xbt_strdup(trace_connect->element), NULL);
 317     break;
 318   case SURF_TRACE_CONNECT_KIND_POWER:
 319     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 320         xbt_strdup(trace_connect->element), NULL);
 321     break;
 322   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 323     xbt_dict_set(trace_connect_list_link_avail,
 324         trace_connect->trace,
 325         xbt_strdup(trace_connect->element), NULL);
 326     break;
 327   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 328     xbt_dict_set(trace_connect_list_bandwidth,
 329         trace_connect->trace,
 330         xbt_strdup(trace_connect->element), NULL);
 331     break;
 332   case SURF_TRACE_CONNECT_KIND_LATENCY:
 333     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 334         xbt_strdup(trace_connect->element), NULL);
 335     break;
 336   default:
 337         surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 338         trace_connect->trace, trace_connect->element);
 339     break;
 340   }
 341 }
 342
 343 /**
 344  * \brief Make a new routing component to the platform
 345  *
 346  * Add a new autonomous system to the platform. Any elements (such as host,
 347  * router or sub-AS) added after this call and before the corresponding call
 348  * to sg_platf_new_AS_close() will be added to this AS.
 349  *
 350  * Once this function was called, the configuration concerning the used
 351  * models cannot be changed anymore.
 352  *
 353  * @param AS_id name of this autonomous system. Must be unique in the platform
 354  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 355  */
 356 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 357 {
 358   XBT_DEBUG("routing_AS_begin");
 359   routing_model_description_t model = NULL;
 360
 361   xbt_assert(!xbt_lib_get_or_null
 362              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 363              "The AS \"%s\" already exists", AS->id);
 364
 365   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 366                             * controlling the level of configuration to prevent
 367                             * any further config */
 368
 369   /* search the routing model */
 370   switch(AS->routing){
 371     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
 372     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 373     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 374     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 375     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 376     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 377     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 378     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 379     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 380     default: xbt_die("Not a valid model!!!");
 381     break;
 382   }
 383
 384   /* make a new routing component */
 385   As *new_as = model->create();
 386
 387   new_as->p_modelDesc = model;
 388   new_as->p_hierarchy = SURF_ROUTING_NULL;
 389   new_as->p_name = xbt_strdup(AS->id);
 390
 391   RoutingEdge *info = new RoutingEdgeImpl(xbt_strdup(new_as->p_name),
 392                                             -1,
 393                                             SURF_NETWORK_ELEMENT_AS,
 394                                             current_routing);
 395   if (current_routing == NULL && routing_platf->p_root == NULL) {
 396
 397     /* it is the first one */
 398     new_as->p_routingFather = NULL;
 399     routing_platf->p_root = new_as;
 400     info->setId(-1);
 401   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 402
 403     xbt_assert(!xbt_dict_get_or_null
 404                (current_routing->p_routingSons, AS->id),
 405                "The AS \"%s\" already exists", AS->id);
 406     /* it is a part of the tree */
 407     new_as->p_routingFather = current_routing;
 408     /* set the father behavior */
 409     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 410       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 411     /* add to the sons dictionary */
 412     xbt_dict_set(current_routing->p_routingSons, AS->id,
 413                  (void *) new_as, NULL);
 414     /* add to the father element list */
 415     info->setId(current_routing->parseAS(info));
 416   } else {
 417     THROWF(arg_error, 0, "All defined components must belong to a AS");
 418   }
 419
 420   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 421               (void *) info);
 422   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 423
 424   routingEdgeCreatedCallbacks(info);
 425
 426   /* set the new current component of the tree */
 427   current_routing = new_as;
 428   current_routing->p_netElem = info;
 429 }
 430
 431 /**
 432  * \brief Specify that the current description of AS is finished
 433  *
 434  * Once you've declared all the content of your AS, you have to close
 435  * it with this call. Your AS is not usable until you call this function.
 436  *
 437  * @fixme: this call is not as robust as wanted: bad things WILL happen
 438  * if you call it twice for the same AS, or if you forget calling it, or
 439  * even if you add stuff to a closed AS
 440  *
 441  */
 442 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
 443 {
 444
 445   if (current_routing == NULL) {
 446     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 447   } else {
 448     if (current_routing->p_modelDesc->end)
 449       current_routing->p_modelDesc->end(current_routing);
 450     current_routing = current_routing->p_routingFather;
 451   }
 452 }
 453
 454 /* Aux Business methods */
 455
 456 /**
 457  * \brief Get the AS father and the first elements of the chain
 458  *
 459  * \param src the source host name
 460  * \param dst the destination host name
 461  *
 462  * Get the common father of the to processing units, and the first different
 463  * father in the chain
 464  */
 465 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 466                             AS_t * res_father,
 467                             AS_t * res_src,
 468                             AS_t * res_dst)
 469 {
 470   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 471 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 472   As *src_as, *dst_as;
 473   As *path_src[ELEMENTS_FATHER_MAXDEPTH];
 474   As *path_dst[ELEMENTS_FATHER_MAXDEPTH];
 475   int index_src = 0;
 476   int index_dst = 0;
 477   As *current;
 478   As *current_src;
 479   As *current_dst;
 480   As *father;
 481
 482   /* (1) find the as where the src and dst are located */
 483   sg_routing_edge_t src_data = src;
 484   sg_routing_edge_t dst_data = dst;
 485   src_as = src_data->getRcComponent();
 486   dst_as = dst_data->getRcComponent();
 487 #ifndef NDEBUG
 488   char* src_name = src_data->getName();
 489   char* dst_name = dst_data->getName();
 490 #endif
 491
 492   xbt_assert(src_as && dst_as,
 493              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 494
 495   /* (2) find the path to the root routing component */
 496   for (current = src_as; current != NULL; current = current->p_routingFather) {
 497     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 498       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 499     path_src[index_src++] = current;
 500   }
 501   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 502     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 503       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 504     path_dst[index_dst++] = current;
 505   }
 506
 507   /* (3) find the common father */
 508   do {
 509     current_src = path_src[--index_src];
 510     current_dst = path_dst[--index_dst];
 511   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 512
 513   /* (4) they are not in the same routing component, make the path */
 514   if (current_src == current_dst)
 515     father = current_src;
 516   else
 517     father = path_src[index_src + 1];
 518
 519   /* (5) result generation */
 520   *res_father = father;         /* first the common father of src and dst */
 521   *res_src = current_src;       /* second the first different father of src */
 522   *res_dst = current_dst;       /* three  the first different father of dst */
 523
 524 #undef ELEMENTS_FATHER_MAXDEPTH
 525 }
 526
 527 /* Global Business methods */
 528
 529 /**
 530  * \brief Recursive function for get_route_latency
 531  *
 532  * \param src the source host name
 533  * \param dst the destination host name
 534  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 535  * \param *latency the latency, if needed
 536  *
 537  * This function is called by "get_route" and "get_latency". It allows to walk
 538  * recursively through the ASes tree.
 539  */
 540 static void _get_route_and_latency(RoutingEdge *src, RoutingEdge *dst,
 541                                    xbt_dynar_t * links, double *latency)
 542 {
 543   s_sg_platf_route_cbarg_t route = SG_PLATF_ROUTE_INITIALIZER;
 544   memset(&route,0,sizeof(route));
 545
 546   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 547   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 548
 549   /* Find how src and dst are interconnected */
 550   As *common_father, *src_father, *dst_father;
 551   elements_father(src, dst, &common_father, &src_father, &dst_father);
 552   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 553       common_father->p_name, src_father->p_name, dst_father->p_name);
 554
 555   /* Check whether a direct bypass is defined */
 556   sg_platf_route_cbarg_t e_route_bypass = NULL;
 557   //FIXME:REMOVE:if (common_father->get_bypass_route)
 558
 559   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 560
 561   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 562   if (e_route_bypass) {
 563     xbt_dynar_merge(links, &e_route_bypass->link_list);
 564     generic_free_route(e_route_bypass);
 565     return;
 566   }
 567
 568   /* If src and dst are in the same AS, life is good */
 569   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 570     route.link_list = *links;
 571     common_father->getRouteAndLatency(src, dst, &route, latency);
 572     // if vivaldi latency+=vivaldi(src,dst)
 573     return;
 574   }
 575
 576   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 577
 578   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 579   // Find the net_card corresponding to father
 580   RoutingEdge *src_father_net_elm = src_father->p_netElem;
 581   RoutingEdge *dst_father_net_elm = dst_father->p_netElem;
 582
 583   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 584                                     &route, latency);
 585
 586   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 587       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 588
 589   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 590   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 591
 592   /* If source gateway is not our source, we have to recursively find our way up to this point */
 593   if (src != src_gateway_net_elm)
 594     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 595   xbt_dynar_merge(links, &route.link_list);
 596
 597   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 598   if (dst_gateway_net_elm != dst)
 599     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 600
 601   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 602 }
 603
 604 AS_t surf_platf_get_root(routing_platf_t platf){
 605   return platf->p_root;
 606 }
 607
 608 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
 609   return edge->getRcType();
 610 }
 611
 612
 613 /**
 614  * \brief Find a route between hosts
 615  *
 616  * \param src the network_element_t for src host
 617  * \param dst the network_element_t for dst host
 618  * \param route where to store the list of links.
 619  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 620  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 621  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 622  * \pre route!=NULL
 623  *
 624  * walk through the routing components tree and find a route between hosts
 625  * by calling the differents "get_route" functions in each routing component.
 626  */
 627 void RoutingPlatf::getRouteAndLatency(RoutingEdge *src, RoutingEdge *dst,
 628                                    xbt_dynar_t* route, double *latency)
 629 {
 630   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 631   if (!*route) {
 632     xbt_dynar_reset(routing_platf->p_lastRoute);
 633     *route = routing_platf->p_lastRoute;
 634   }
 635
 636   _get_route_and_latency(src, dst, route, latency);
 637
 638   xbt_assert(!latency || *latency >= 0.0,
 639              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 640 }
 641
 642 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 643   return recursiveGetOneLinkRoutes(p_root);
 644 }
 645
 646 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(As *rc)
 647 {
 648   xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
 649
 650   //adding my one link routes
 651   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 652   if (onelink_mine)
 653     xbt_dynar_merge(&ret,&onelink_mine);
 654
 655   //recursing
 656   char *key;
 657   xbt_dict_cursor_t cursor = NULL;
 658   AS_t rc_child;
 659   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 660     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 661     if (onelink_child)
 662       xbt_dynar_merge(&ret,&onelink_child);
 663   }
 664   return ret;
 665 }
 666
 667 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 668 {
 669   RoutingEdge *rc = sg_routing_edge_by_name_or_null(name);
 670   if (rc)
 671     return rc->getRcType();
 672
 673   return SURF_NETWORK_ELEMENT_NULL;
 674 }
 675
 676 /**
 677  * \brief Generic method: create the global routing schema
 678  *
 679  * Make a global routing structure and set all the parsing functions.
 680  */
 681 void routing_model_create( void *loopback)
 682 {
 683   /* config the uniq global routing */
 684   routing_platf = new RoutingPlatf();
 685   routing_platf->p_root = NULL;
 686   routing_platf->p_loopback = loopback;
 687   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 688   /* no current routing at moment */
 689   current_routing = NULL;
 690 }
 691
 692
 693 /* ************************************************** */
 694 /* ********** PATERN FOR NEW ROUTING **************** */
 695
 696 /* The minimal configuration of a new routing model need the next functions,
 697  * also you need to set at the start of the file, the new model in the model
 698  * list. Remember keep the null ending of the list.
 699  */
 700 /*** Routing model structure ***/
 701 // typedef struct {
 702 //   s_routing_component_t generic_routing;
 703 //   /* things that your routing model need */
 704 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 705
 706 /*** Parse routing model functions ***/
 707 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 708 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 709 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 710 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 711 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 712
 713 /*** Business methods ***/
 714 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 715 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 716 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 717
 718 /*** Creation routing model functions ***/
 719 // static void* model_NEW_create(void) {
 720 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 721 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 722 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 723 //   new_component->generic_routing.set_route = model_NEW_set_route;
 724 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 725 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 726 //   new_component->generic_routing.get_route = NEW_get_route;
 727 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 728 //   new_component->generic_routing.finalize = NEW_finalize;
 729 //   /* initialization of internal structures */
 730 //   return new_component;
 731 // } /* mandatory */
 732 // static void  model_NEW_load(void) {}   /* mandatory */
 733 // static void  model_NEW_unload(void) {} /* mandatory */
 734 // static void  model_NEW_end(void) {}    /* mandatory */
 735
 736 /* ************************************************************************** */
 737 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 738
 739 void routing_cluster_add_backbone(void* bb) {
 740   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 741         "You have to be in model Cluster to use tag backbone!");
 742   xbt_assert(!static_cast<AsCluster*>(current_routing)->p_backbone, "The backbone link is already defined!");
 743   static_cast<AsCluster*>(current_routing)->p_backbone = static_cast<Link*>(bb);
 744   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 745 }
 746
 747 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 748 {
 749   int start, end, i;
 750   char *groups , *host_id , *link_id = NULL;
 751   unsigned int iter;
 752   xbt_dynar_t radical_elements;
 753   xbt_dynar_t radical_ends;
 754
 755   //Make all hosts
 756   radical_elements = xbt_str_split(cabinet->radical, ",");
 757   xbt_dynar_foreach(radical_elements, iter, groups) {
 758
 759     radical_ends = xbt_str_split(groups, "-");
 760     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 761
 762     switch (xbt_dynar_length(radical_ends)) {
 763     case 1:
 764       end = start;
 765       break;
 766     case 2:
 767       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 768       break;
 769     default:
 770       surf_parse_error("Malformed radical");
 771       break;
 772     }
 773     s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 774     memset(&host, 0, sizeof(host));
 775     host.initial_state = SURF_RESOURCE_ON;
 776     host.pstate        = 0;
 777     host.power_scale   = 1.0;
 778     host.core_amount   = 1;
 779
 780     s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 781     memset(&link, 0, sizeof(link));
 782     link.state     = SURF_RESOURCE_ON;
 783     link.policy    = SURF_LINK_FULLDUPLEX;
 784     link.latency   = cabinet->lat;
 785     link.bandwidth = cabinet->bw;
 786
 787     s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
 788     memset(&host_link, 0, sizeof(host_link));
 789
 790     for (i = start; i <= end; i++) {
 791       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 792       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 793       host.id                      = host_id;
 794       link.id                      = link_id;
 795       host.power_peak = xbt_dynar_new(sizeof(double), NULL);
 796       xbt_dynar_push(host.power_peak,&cabinet->power);
 797       sg_platf_new_host(&host);
 798       xbt_dynar_free(&host.power_peak);
 799       sg_platf_new_link(&link);
 800
 801       char* link_up       = bprintf("%s_UP",link_id);
 802       char* link_down     = bprintf("%s_DOWN",link_id);
 803       host_link.id        = host_id;
 804       host_link.link_up   = link_up;
 805       host_link.link_down = link_down;
 806       sg_platf_new_host_link(&host_link);
 807
 808       free(host_id);
 809       free(link_id);
 810       free(link_up);
 811       free(link_down);
 812     }
 813
 814     xbt_dynar_free(&radical_ends);
 815   }
 816   xbt_dynar_free(&radical_elements);
 817 }
 818
 819 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 820 {
 821   char *host_id, *groups, *link_id = NULL;
 822   xbt_dict_t patterns = NULL;
 823   int rankId=0;
 824
 825   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 826   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 827
 828   unsigned int iter;
 829   int start, end, i;
 830   xbt_dynar_t radical_elements;
 831   xbt_dynar_t radical_ends;
 832
 833   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 834       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 835     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 836     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 837     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 838     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 839   }
 840
 841   /* parse the topology attribute. If we are not in a flat cluster,
 842    * switch to the right mode and initialize the routing with
 843    * the parameters in topo_parameters attribute
 844    */
 845   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 846   AS.id = cluster->id;
 847
 848   if(cluster->topology == SURF_CLUSTER_TORUS){
 849     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 850     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 851     sg_platf_new_AS_begin(&AS);
 852     ((AsClusterTorus*)current_routing)->parse_specific_arguments(cluster);
 853   }
 854   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 855     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 856     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 857     sg_platf_new_AS_begin(&AS);
 858     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 859   }
 860
 861   else{
 862     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 863     AS.routing = A_surfxml_AS_routing_Cluster;
 864     sg_platf_new_AS_begin(&AS);
 865   }
 866
 867   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 868       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 869       ((AsCluster*)current_routing)->p_has_loopback=1;
 870   }
 871
 872   if(cluster->limiter_link!=0){
 873       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 874       ((AsCluster*)current_routing)->p_has_limiter=1;
 875   }
 876
 877
 878
 879   current_routing->p_linkUpDownList
 880             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 881
 882   //Make all hosts
 883   radical_elements = xbt_str_split(cluster->radical, ",");
 884   xbt_dynar_foreach(radical_elements, iter, groups) {
 885
 886     radical_ends = xbt_str_split(groups, "-");
 887     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 888
 889     switch (xbt_dynar_length(radical_ends)) {
 890     case 1:
 891       end = start;
 892       break;
 893     case 2:
 894       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 895       break;
 896     default:
 897       surf_parse_error("Malformed radical");
 898       break;
 899     }
 900     for (i = start; i <= end; i++) {
 901       host_id =
 902           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 903       link_id = bprintf("%s_link_%d", cluster->id, i);
 904
 905       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 906
 907       memset(&host, 0, sizeof(host));
 908       host.id = host_id;
 909       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 910           xbt_dict_cursor_t cursor=NULL;
 911           char *key,*data;
 912           host.properties = xbt_dict_new();
 913
 914           xbt_dict_foreach(cluster->properties,cursor,key,data) {
 915                   xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 916           }
 917       }
 918       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 919         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 920         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 921         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 922         host.power_trace = tmgr_trace_new_from_file(avail_file);
 923         xbt_free(avail_file);
 924       } else {
 925         XBT_DEBUG("\tavailability_file=\"\"");
 926       }
 927
 928       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 929         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 930         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 931         host.state_trace = tmgr_trace_new_from_file(avail_file);
 932         xbt_free(avail_file);
 933       } else {
 934         XBT_DEBUG("\tstate_file=\"\"");
 935       }
 936
 937       host.power_peak = xbt_dynar_new(sizeof(double), NULL);
 938       xbt_dynar_push(host.power_peak,&cluster->power);
 939       host.pstate = 0;
 940
 941       //host.power_peak = cluster->power;
 942       host.power_scale = 1.0;
 943       host.core_amount = cluster->core_amount;
 944       host.initial_state = SURF_RESOURCE_ON;
 945       host.coord = "";
 946       sg_platf_new_host(&host);
 947       xbt_dynar_free(&host.power_peak);
 948       XBT_DEBUG("</host>");
 949
 950       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 951                 cluster->bw, cluster->lat);
 952
 953
 954       s_surf_parsing_link_up_down_t info_lim, info_loop;
 955       // All links are saved in a matrix;
 956       // every row describes a single node; every node
 957       // may have multiple links.
 958       // the first column may store a link from x to x if p_has_loopback is set
 959       // the second column may store a limiter link if p_has_limiter is set
 960       // other columns are to store one or more link for the node
 961
 962       //add a loopback link
 963       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 964         char *tmp_link = bprintf("%s_loopback", link_id);
 965         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 966                 cluster->limiter_link);
 967
 968
 969         memset(&link, 0, sizeof(link));
 970         link.id        = tmp_link;
 971         link.bandwidth = cluster->loopback_bw;
 972         link.latency   = cluster->loopback_lat;
 973         link.state     = SURF_RESOURCE_ON;
 974         link.policy    = SURF_LINK_FATPIPE;
 975         sg_platf_new_link(&link);
 976         info_loop.link_up   = Link::byName(tmp_link);
 977         info_loop.link_down = info_loop.link_up;
 978         free(tmp_link);
 979         xbt_dynar_set(current_routing->p_linkUpDownList, rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node, &info_loop);
 980       }
 981
 982       //add a limiter link (shared link to account for maximal bandwidth of the node)
 983       if(cluster->limiter_link!=0){
 984         char *tmp_link = bprintf("%s_limiter", link_id);
 985         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 986                 cluster->limiter_link);
 987
 988
 989         memset(&link, 0, sizeof(link));
 990         link.id = tmp_link;
 991         link.bandwidth = cluster->limiter_link;
 992         link.latency = 0;
 993         link.state = SURF_RESOURCE_ON;
 994         link.policy = SURF_LINK_SHARED;
 995         sg_platf_new_link(&link);
 996         info_lim.link_up = Link::byName(tmp_link);
 997         info_lim.link_down = info_lim.link_up;
 998         free(tmp_link);
 999         xbt_dynar_set(current_routing->p_linkUpDownList,
1000             rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node + static_cast<AsCluster*>(current_routing)->p_has_loopback ,
1001             &info_lim);
1002
1003       }
1004
1005
1006       //call the cluster function that adds the others links
1007       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
1008         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
1009       }
1010       else {
1011       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
1012                   static_cast<AsCluster*>(current_routing)->p_nb_links_per_node
1013           + static_cast<AsCluster*>(current_routing)->p_has_loopback
1014           + static_cast<AsCluster*>(current_routing)->p_has_limiter );
1015       }
1016       xbt_free(link_id);
1017       xbt_free(host_id);
1018       rankId++;
1019     }
1020
1021     xbt_dynar_free(&radical_ends);
1022   }
1023   xbt_dynar_free(&radical_elements);
1024
1025   // For fat trees, the links must be created once all nodes have been added
1026   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
1027     static_cast<AsClusterFatTree*>(current_routing)->create_links();
1028   }
1029   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
1030   // and it's very useful to connect clusters together
1031   XBT_DEBUG(" ");
1032   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
1033   char *newid = NULL;
1034   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
1035   memset(&router, 0, sizeof(router));
1036   router.id = cluster->router_id;
1037   router.coord = "";
1038   if (!router.id || !strcmp(router.id, ""))
1039     router.id = newid =
1040         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
1041                 cluster->suffix);
1042   sg_platf_new_router(&router);
1043   ((AsCluster*)current_routing)->p_router = (RoutingEdge*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1044   free(newid);
1045
1046   //Make the backbone
1047   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
1048     char *link_backbone = bprintf("%s_backbone", cluster->id);
1049     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1050               cluster->bb_bw, cluster->bb_lat);
1051
1052     memset(&link, 0, sizeof(link));
1053     link.id        = link_backbone;
1054     link.bandwidth = cluster->bb_bw;
1055     link.latency   = cluster->bb_lat;
1056     link.state     = SURF_RESOURCE_ON;
1057     link.policy    = cluster->bb_sharing_policy;
1058
1059     sg_platf_new_link(&link);
1060
1061     routing_cluster_add_backbone(Link::byName(link_backbone));
1062
1063     free(link_backbone);
1064   }
1065
1066   XBT_DEBUG("</AS>");
1067   sg_platf_new_AS_end();
1068   XBT_DEBUG(" ");
1069   xbt_dict_free(&patterns); // no op if it were never set
1070 }
1071
1072 static void routing_parse_postparse(void) {
1073   xbt_dict_free(&random_value);
1074 }
1075
1076 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1077 {
1078   char *host_id = NULL;
1079   char *link_id = NULL;
1080   char *router_id = NULL;
1081
1082   XBT_DEBUG(" ");
1083   host_id = HOST_PEER(peer->id);
1084   link_id = LINK_PEER(peer->id);
1085   router_id = ROUTER_PEER(peer->id);
1086
1087   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1088   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1089   AS.id                    = peer->id;
1090   AS.routing               = A_surfxml_AS_routing_Cluster;
1091   sg_platf_new_AS_begin(&AS);
1092
1093   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1094
1095   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1096   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
1097   memset(&host, 0, sizeof(host));
1098   host.initial_state = SURF_RESOURCE_ON;
1099   host.id = host_id;
1100
1101   host.power_peak = xbt_dynar_new(sizeof(double), NULL);
1102   xbt_dynar_push(host.power_peak,&peer->power);
1103   host.pstate = 0;
1104   //host.power_peak = peer->power;
1105   host.power_scale = 1.0;
1106   host.power_trace = peer->availability_trace;
1107   host.state_trace = peer->state_trace;
1108   host.core_amount = 1;
1109   sg_platf_new_host(&host);
1110   xbt_dynar_free(&host.power_peak);
1111
1112   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
1113   memset(&link, 0, sizeof(link));
1114   link.state   = SURF_RESOURCE_ON;
1115   link.policy  = SURF_LINK_SHARED;
1116   link.latency = peer->lat;
1117
1118   char* link_up = bprintf("%s_UP",link_id);
1119   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1120             peer->bw_out, peer->lat);
1121   link.id = link_up;
1122   link.bandwidth = peer->bw_out;
1123   sg_platf_new_link(&link);
1124
1125   char* link_down = bprintf("%s_DOWN",link_id);
1126   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1127             peer->bw_in, peer->lat);
1128   link.id = link_down;
1129   link.bandwidth = peer->bw_in;
1130   sg_platf_new_link(&link);
1131
1132   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1133   s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
1134   memset(&host_link, 0, sizeof(host_link));
1135   host_link.id        = host_id;
1136   host_link.link_up   = link_up;
1137   host_link.link_down = link_down;
1138   sg_platf_new_host_link(&host_link);
1139
1140   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1141   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
1142   memset(&router, 0, sizeof(router));
1143   router.id = router_id;
1144   router.coord = peer->coord;
1145   sg_platf_new_router(&router);
1146   static_cast<AsCluster*>(current_routing)->p_router = static_cast<RoutingEdge*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1147
1148   XBT_DEBUG("</AS>");
1149   sg_platf_new_AS_end();
1150   XBT_DEBUG(" ");
1151
1152   //xbt_dynar_free(&tab_elements_num);
1153   free(router_id);
1154   free(host_id);
1155   free(link_id);
1156   free(link_up);
1157   free(link_down);
1158 }
1159
1160 // static void routing_parse_Srandom(void)
1161 // {
1162 //   double mean, std, min, max, seed;
1163 //   char *random_id = A_surfxml_random_id;
1164 //   char *random_radical = A_surfxml_random_radical;
1165 //   char *rd_name = NULL;
1166 //   char *rd_value;
1167 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1168 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1169 //   min = surf_parse_get_double(A_surfxml_random_min);
1170 //   max = surf_parse_get_double(A_surfxml_random_max);
1171 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1172
1173 //   double res = 0;
1174 //   int i = 0;
1175 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1176 //   char *tmpbuf;
1177
1178 //   xbt_dynar_t radical_elements;
1179 //   unsigned int iter;
1180 //   char *groups;
1181 //   int start, end;
1182 //   xbt_dynar_t radical_ends;
1183
1184 //   switch (A_surfxml_random_generator) {
1185 //   case AU_surfxml_random_generator:
1186 //   case A_surfxml_random_generator_NONE:
1187 //     random->generator = NONE;
1188 //     break;
1189 //   case A_surfxml_random_generator_DRAND48:
1190 //     random->generator = DRAND48;
1191 //     break;
1192 //   case A_surfxml_random_generator_RAND:
1193 //     random->generator = RAND;
1194 //     break;
1195 //   case A_surfxml_random_generator_RNGSTREAM:
1196 //     random->generator = RNGSTREAM;
1197 //     break;
1198 //   default:
1199 //     surf_parse_error("Invalid random generator");
1200 //     break;
1201 //   }
1202 //   random->seed = seed;
1203 //   random->min = min;
1204 //   random->max = max;
1205
1206 //   /* Check user stupidities */
1207 //   if (max < min)
1208 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1209 //   if (mean < min)
1210 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1211 //   if (mean > max)
1212 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1213
1214 //   /* normalize the mean and standard deviation before storing */
1215 //   random->mean = (mean - min) / (max - min);
1216 //   random->std = std / (max - min);
1217
1218 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1219 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1220 //            random->mean, random->std);
1221
1222 //   XBT_DEBUG
1223 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1224 //        random_id, random->min, random->max, random->mean, random->std,
1225 //        (int)random->generator, random->seed, random_radical);
1226
1227 //   if (!random_value)
1228 //     random_value = xbt_dict_new_homogeneous(free);
1229
1230 //   if (!strcmp(random_radical, "")) {
1231 //     res = random_generate(random);
1232 //     rd_value = bprintf("%f", res);
1233 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1234 //   } else {
1235 //     radical_elements = xbt_str_split(random_radical, ",");
1236 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1237 //       radical_ends = xbt_str_split(groups, "-");
1238 //       switch (xbt_dynar_length(radical_ends)) {
1239 //       case 1:
1240 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1241 //                    "Custom Random '%s' already exists !", random_id);
1242 //         res = random_generate(random);
1243 //         tmpbuf =
1244 //             bprintf("%s%d", random_id,
1245 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1246 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1247 //         xbt_free(tmpbuf);
1248 //         break;
1249
1250 //       case 2:
1251 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1252 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1253 //         for (i = start; i <= end; i++) {
1254 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1255 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1256 //                                                                     random_id,
1257 //                                                                     i));
1258 //           res = random_generate(random);
1259 //           tmpbuf = bprintf("%s%d", random_id, i);
1260 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1261 //           xbt_free(tmpbuf);
1262 //         }
1263 //         break;
1264 //       default:
1265 //         XBT_CRITICAL("Malformed radical");
1266 //         break;
1267 //       }
1268 //       res = random_generate(random);
1269 //       rd_name = bprintf("%s_router", random_id);
1270 //       rd_value = bprintf("%f", res);
1271 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1272
1273 //       xbt_dynar_free(&radical_ends);
1274 //     }
1275 //     free(rd_name);
1276 //     xbt_dynar_free(&radical_elements);
1277 //   }
1278 // }
1279
1280 static void check_disk_attachment()
1281 {
1282   xbt_lib_cursor_t cursor;
1283   char *key;
1284   void **data;
1285   RoutingEdge *host_elm;
1286   xbt_lib_foreach(storage_lib, cursor, key, data) {
1287     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1288           Storage *storage = static_cast<Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1289           host_elm = sg_routing_edge_by_name_or_null(storage->p_attach);
1290           if(!host_elm)
1291                   surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1292     }
1293   }
1294 }
1295
1296 void routing_register_callbacks()
1297 {
1298   sg_platf_router_add_cb(parse_S_router);
1299   sg_platf_host_link_add_cb(parse_S_host);
1300   sg_platf_route_add_cb(parse_E_route);
1301   sg_platf_ASroute_add_cb(parse_E_ASroute);
1302   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1303   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1304
1305   sg_platf_cluster_add_cb(routing_parse_cluster);
1306   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1307
1308   sg_platf_peer_add_cb(routing_parse_peer);
1309   sg_platf_postparse_add_cb(routing_parse_postparse);
1310   sg_platf_postparse_add_cb(check_disk_attachment);
1311
1312   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1313   sg_platf_AS_end_add_cb(routing_AS_end);
1314   sg_platf_AS_begin_add_cb(routing_AS_begin);
1315
1316   sg_platf_trace_add_cb(routing_parse_trace);
1317   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1318
1319   instr_routing_define_callbacks();
1320 }
1321
1322 /**
1323  * \brief Recursive function for finalize
1324  *
1325  * \param rc the source host name
1326  *
1327  * This fuction is call by "finalize". It allow to finalize the
1328  * AS or routing components. It delete all the structures.
1329  */
1330 static void finalize_rec(As *as) {
1331   xbt_dict_cursor_t cursor = NULL;
1332   char *key;
1333   AS_t elem;
1334
1335   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1336     finalize_rec(elem);
1337   }
1338
1339   delete as;;
1340 }
1341
1342 /** \brief Frees all memory allocated by the routing module */
1343 void routing_exit(void) {
1344   delete routing_platf;
1345 }
1346
1347 RoutingPlatf::~RoutingPlatf()
1348 {
1349         xbt_dynar_free(&p_lastRoute);
1350         finalize_rec(p_root);
1351 }
1352
1353 AS_t surf_AS_get_routing_root() {
1354   return routing_platf->p_root;
1355 }
1356
1357 const char *surf_AS_get_name(As *as) {
1358   return as->p_name;
1359 }
1360
1361 static As *surf_AS_recursive_get_by_name(As *current, const char * name) {
1362   xbt_dict_cursor_t cursor = NULL;
1363   char *key;
1364   AS_t elem;
1365   As *tmp = NULL;
1366
1367   if(!strcmp(current->p_name, name))
1368     return current;
1369
1370   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1371     tmp = surf_AS_recursive_get_by_name(elem, name);
1372     if(tmp != NULL ) {
1373         break;
1374     }
1375   }
1376   return tmp;
1377 }
1378
1379
1380 As *surf_AS_get_by_name(const char * name) {
1381   As *as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1382   if(as == NULL)
1383     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1384   return as;
1385 }
1386
1387 xbt_dict_t surf_AS_get_routing_sons(As *as) {
1388   return as->p_routingSons;
1389 }
1390
1391 const char *surf_AS_get_model(As *as) {
1392   return as->p_modelDesc->name;
1393 }
1394
1395 xbt_dynar_t surf_AS_get_hosts(As *as) {
1396   xbt_dynar_t elms = as->p_indexNetworkElm;
1397   sg_routing_edge_t relm;
1398   xbt_dictelm_t delm;
1399   int index;
1400   int count = xbt_dynar_length(elms);
1401   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1402   for (index = 0; index < count; index++) {
1403      relm = xbt_dynar_get_as(elms, index, RoutingEdge*);
1404      delm = xbt_lib_get_elm_or_null(host_lib, relm->getName());
1405      if (delm!=NULL) {
1406        xbt_dynar_push(res, &delm);
1407      }
1408   }
1409   return res;
1410 }
1411
1412 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1413   as->getGraph(graph, nodes, edges);
1414 }