src/surf/surf_routing.cpp

   1 /* Copyright (c) 2009-2011, 2013-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "surf_routing.hpp"
   8 #include "surf_routing_private.hpp"
   9 #include "surf_routing_cluster.hpp"
  10 #include "surf_routing_cluster_torus.hpp"
  11 #include "surf_routing_cluster_fat_tree.hpp"
  12
  13 #include "simgrid/platf_interface.h"    // platform creation API internal interface
  14 #include "simgrid/sg_config.h"
  15 #include "storage_interface.hpp"
  16
  17 #include "surf/surfxml_parse_values.h"
  18
  19
  20 /**
  21  * @ingroup SURF_build_api
  22  * @brief A library containing all known hosts
  23  */
  24 xbt_lib_t host_lib;
  25
  26 int ROUTING_HOST_LEVEL;         //Routing level
  27 int SURF_CPU_LEVEL;             //Surf cpu level
  28 int SURF_HOST_LEVEL;            //Surf host level
  29 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  30 int MSG_HOST_LEVEL;             //Msg host level
  31 int MSG_STORAGE_LEVEL;          //Msg storage level
  32 int MSG_FILE_LEVEL;             //Msg file level
  33 int SD_HOST_LEVEL;              //Simdag host level
  34 int SD_STORAGE_LEVEL;           //Simdag storage level
  35 int COORD_HOST_LEVEL=0;         //Coordinates level
  36 int NS3_HOST_LEVEL;             //host node for ns3
  37
  38 /**
  39  * @ingroup SURF_build_api
  40  * @brief A library containing all known links
  41  */
  42 xbt_lib_t link_lib;
  43 int SD_LINK_LEVEL;              //Simdag level
  44 int SURF_LINK_LEVEL;            //Surf level
  45
  46 xbt_lib_t as_router_lib;
  47 int ROUTING_ASR_LEVEL;          //Routing level
  48 int COORD_ASR_LEVEL;            //Coordinates level
  49 int NS3_ASR_LEVEL;              //host node for ns3
  50 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  51
  52 static xbt_dict_t random_value = NULL;
  53
  54
  55 /** @brief Retrieve a routing edge from its name
  56  *
  57  * Routing edges are either host and routers, whatever
  58  */
  59 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
  60   RoutingEdgePtr net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
  61   if (!net_elm)
  62         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  63   return net_elm;
  64 }
  65
  66 /* Global vars */
  67 RoutingPlatfPtr routing_platf = NULL;
  68 AsPtr current_routing = NULL;
  69
  70 /* global parse functions */
  71 extern xbt_dynar_t mount_list;
  72
  73 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
  74
  75 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
  76 // static void routing_parse_Srandom(void);        /* random bypass */
  77
  78 static void routing_parse_postparse(void);
  79
  80 /* this lines are only for replace use like index in the model table */
  81 typedef enum {
  82   SURF_MODEL_FULL = 0,
  83   SURF_MODEL_FLOYD,
  84   SURF_MODEL_DIJKSTRA,
  85   SURF_MODEL_DIJKSTRACACHE,
  86   SURF_MODEL_NONE,
  87   SURF_MODEL_VIVALDI,
  88   SURF_MODEL_CLUSTER,
  89   SURF_MODEL_TORUS_CLUSTER,
  90   SURF_MODEL_FAT_TREE_CLUSTER,
  91 } e_routing_types;
  92
  93 struct s_model_type routing_models[] = {
  94   {"Full",
  95    "Full routing data (fast, large memory requirements, fully expressive)",
  96    model_full_create, model_full_end},
  97   {"Floyd",
  98    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
  99    model_floyd_create, model_floyd_end},
 100   {"Dijkstra",
 101    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
 102    model_dijkstra_create, model_dijkstra_both_end},
 103   {"DijkstraCache",
 104    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
 105    model_dijkstracache_create, model_dijkstra_both_end},
 106   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
 107    model_none_create,  NULL},
 108   {"Vivaldi", "Vivaldi routing",
 109    model_vivaldi_create, NULL},
 110   {"Cluster", "Cluster routing",
 111    model_cluster_create, NULL},
 112   {"Torus_Cluster", "Torus Cluster routing",
 113    model_torus_cluster_create, NULL},
 114   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
 115    model_fat_tree_cluster_create, NULL},
 116   {NULL, NULL, NULL, NULL}
 117 };
 118
 119 /**
 120  * \brief Add a "host_link" to the network element list
 121  */
 122 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
 123 {
 124   RoutingEdgePtr info = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL));
 125   xbt_assert(info, "Host '%s' not found!", host->id);
 126   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 127       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 128       "You have to be in model Cluster to use tag host_link!");
 129
 130   s_surf_parsing_link_up_down_t link_up_down;
 131   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
 132   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
 133
 134   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
 135   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
 136
 137   if(!current_routing->p_linkUpDownList)
 138     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 139
 140   // If dynar is is greater than edge id and if the host_link is already defined
 141   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
 142       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
 143         surf_parse_error("Host_link for '%s' is already defined!",host->id);
 144
 145   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
 146   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
 147 }
 148
 149 /**
 150  * \brief Add a "host" to the network element list
 151  */
 152 static void parse_S_host(sg_platf_host_cbarg_t host)
 153 {
 154   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 155     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 156   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
 157              "Reading a host, processing unit \"%s\" already exists", host->id);
 158
 159   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(host->id),
 160                                                     -1,
 161                                                     SURF_NETWORK_ELEMENT_HOST,
 162                                                     current_routing);
 163   info->setId(current_routing->parsePU(info));
 164   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
 165   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->getId());
 166
 167   if(mount_list){
 168     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 169     mount_list = NULL;
 170   }
 171
 172   if (host->coord && strcmp(host->coord, "")) {
 173     unsigned int cursor;
 174     char*str;
 175
 176     if (!COORD_HOST_LEVEL)
 177       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 178     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 179     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 180     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 181     xbt_dynar_foreach(ctn_str,cursor, str) {
 182       double val = atof(str);
 183       xbt_dynar_push(ctn,&val);
 184     }
 185     xbt_dynar_shrink(ctn, 0);
 186     xbt_dynar_free(&ctn_str);
 187     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
 188     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 189   }
 190 }
 191
 192 /**
 193  * \brief Add a "router" to the network element list
 194  */
 195 static void parse_S_router(sg_platf_router_cbarg_t router)
 196 {
 197   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 198     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 199   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 200              "Reading a router, processing unit \"%s\" already exists",
 201              router->id);
 202
 203   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(router->id),
 204                                             -1,
 205                                             SURF_NETWORK_ELEMENT_ROUTER,
 206                                             current_routing);
 207   info->setId(current_routing->parsePU(info));
 208   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
 209   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
 210
 211   if (router->coord && strcmp(router->coord, "")) {
 212     unsigned int cursor;
 213     char*str;
 214
 215     if (!COORD_ASR_LEVEL)
 216       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 217     /* Pre-parse the host coordinates */
 218     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 219     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 220     xbt_dynar_foreach(ctn_str,cursor, str) {
 221       double val = atof(str);
 222       xbt_dynar_push(ctn,&val);
 223     }
 224     xbt_dynar_shrink(ctn, 0);
 225     xbt_dynar_free(&ctn_str);
 226     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 227     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
 228   }
 229 }
 230
 231 /**
 232  * \brief Store the route by calling the set_route function of the current routing component
 233  */
 234 static void parse_E_route(sg_platf_route_cbarg_t route)
 235 {
 236   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
 237              "no defined method \"set_route\" in \"%s\"",
 238              current_routing->name);*/
 239
 240   current_routing->parseRoute(route);
 241 }
 242
 243 /**
 244  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
 245  */
 246 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
 247 {
 248   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
 249              "no defined method \"set_ASroute\" in \"%s\"",
 250              current_routing->name);*/
 251   current_routing->parseASroute(ASroute);
 252 }
 253
 254 /**
 255  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
 256  */
 257 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
 258 {
 259   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 260              "Bypassing mechanism not implemented by routing '%s'",
 261              current_routing->name);*/
 262
 263   current_routing->parseBypassroute(route);
 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_bypassASroute(sg_platf_route_cbarg_t ASroute)
 270 {
 271   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
 272              "Bypassing mechanism not implemented by routing '%s'",
 273              current_routing->name);*/
 274   current_routing->parseBypassroute(ASroute);
 275 }
 276
 277 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
 278 {
 279   tmgr_trace_t tmgr_trace;
 280   if (!trace->file || strcmp(trace->file, "") != 0) {
 281     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 282   } else if (strcmp(trace->pc_data, "") == 0) {
 283     tmgr_trace = NULL;
 284   } else {
 285     tmgr_trace =
 286           tmgr_trace_new_from_string(trace->id, trace->pc_data,
 287                                      trace->periodicity);
 288   }
 289   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 290 }
 291
 292 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
 293 {
 294   xbt_assert(xbt_dict_get_or_null
 295               (traces_set_list, trace_connect->trace),
 296               "Cannot connect trace %s to %s: trace unknown",
 297               trace_connect->trace,
 298               trace_connect->element);
 299
 300   switch (trace_connect->kind) {
 301   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
 302     xbt_dict_set(trace_connect_list_host_avail,
 303         trace_connect->trace,
 304         xbt_strdup(trace_connect->element), NULL);
 305     break;
 306   case SURF_TRACE_CONNECT_KIND_POWER:
 307     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
 308         xbt_strdup(trace_connect->element), NULL);
 309     break;
 310   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
 311     xbt_dict_set(trace_connect_list_link_avail,
 312         trace_connect->trace,
 313         xbt_strdup(trace_connect->element), NULL);
 314     break;
 315   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
 316     xbt_dict_set(trace_connect_list_bandwidth,
 317         trace_connect->trace,
 318         xbt_strdup(trace_connect->element), NULL);
 319     break;
 320   case SURF_TRACE_CONNECT_KIND_LATENCY:
 321     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
 322         xbt_strdup(trace_connect->element), NULL);
 323     break;
 324   default:
 325         surf_parse_error("Cannot connect trace %s to %s: kind of trace unknown",
 326         trace_connect->trace, trace_connect->element);
 327     break;
 328   }
 329 }
 330
 331 /**
 332  * \brief Make a new routing component to the platform
 333  *
 334  * Add a new autonomous system to the platform. Any elements (such as host,
 335  * router or sub-AS) added after this call and before the corresponding call
 336  * to sg_platf_new_AS_close() will be added to this AS.
 337  *
 338  * Once this function was called, the configuration concerning the used
 339  * models cannot be changed anymore.
 340  *
 341  * @param AS_id name of this autonomous system. Must be unique in the platform
 342  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 343  */
 344 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 345 {
 346   XBT_DEBUG("routing_AS_begin");
 347   routing_model_description_t model = NULL;
 348
 349   xbt_assert(!xbt_lib_get_or_null
 350              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 351              "The AS \"%s\" already exists", AS->id);
 352
 353   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 354                             * controlling the level of configuration to prevent
 355                             * any further config */
 356
 357   /* search the routing model */
 358   switch(AS->routing){
 359     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
 360     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 361     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 362     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 363     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 364     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 365     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 366     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 367     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 368     default: xbt_die("Not a valid model!!!");
 369     break;
 370   }
 371
 372   /* make a new routing component */
 373   AsPtr new_as = model->create();
 374
 375   new_as->p_modelDesc = model;
 376   new_as->p_hierarchy = SURF_ROUTING_NULL;
 377   new_as->p_name = xbt_strdup(AS->id);
 378
 379   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(new_as->p_name),
 380                                             -1,
 381                                             SURF_NETWORK_ELEMENT_AS,
 382                                             current_routing);
 383   if (current_routing == NULL && routing_platf->p_root == NULL) {
 384
 385     /* it is the first one */
 386     new_as->p_routingFather = NULL;
 387     routing_platf->p_root = new_as;
 388     info->setId(-1);
 389   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 390
 391     xbt_assert(!xbt_dict_get_or_null
 392                (current_routing->p_routingSons, AS->id),
 393                "The AS \"%s\" already exists", AS->id);
 394     /* it is a part of the tree */
 395     new_as->p_routingFather = current_routing;
 396     /* set the father behavior */
 397     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 398       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 399     /* add to the sons dictionary */
 400     xbt_dict_set(current_routing->p_routingSons, AS->id,
 401                  (void *) new_as, NULL);
 402     /* add to the father element list */
 403     info->setId(current_routing->parseAS(info));
 404   } else {
 405     THROWF(arg_error, 0, "All defined components must belong to a AS");
 406   }
 407
 408   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 409               (void *) info);
 410   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 411
 412   /* set the new current component of the tree */
 413   current_routing = new_as;
 414   current_routing->p_netElem = info;
 415
 416 }
 417
 418 /**
 419  * \brief Specify that the current description of AS is finished
 420  *
 421  * Once you've declared all the content of your AS, you have to close
 422  * it with this call. Your AS is not usable until you call this function.
 423  *
 424  * @fixme: this call is not as robust as wanted: bad things WILL happen
 425  * if you call it twice for the same AS, or if you forget calling it, or
 426  * even if you add stuff to a closed AS
 427  *
 428  */
 429 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
 430 {
 431
 432   if (current_routing == NULL) {
 433     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 434   } else {
 435     if (current_routing->p_modelDesc->end)
 436       current_routing->p_modelDesc->end(current_routing);
 437     current_routing = current_routing->p_routingFather;
 438   }
 439 }
 440
 441 /* Aux Business methods */
 442
 443 /**
 444  * \brief Get the AS father and the first elements of the chain
 445  *
 446  * \param src the source host name
 447  * \param dst the destination host name
 448  *
 449  * Get the common father of the to processing units, and the first different
 450  * father in the chain
 451  */
 452 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
 453                             AS_t * res_father,
 454                             AS_t * res_src,
 455                             AS_t * res_dst)
 456 {
 457   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 458 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 459   AsPtr src_as, dst_as;
 460   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
 461   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
 462   int index_src = 0;
 463   int index_dst = 0;
 464   AsPtr current;
 465   AsPtr current_src;
 466   AsPtr current_dst;
 467   AsPtr father;
 468
 469   /* (1) find the as where the src and dst are located */
 470   sg_routing_edge_t src_data = src;
 471   sg_routing_edge_t dst_data = dst;
 472   src_as = src_data->getRcComponent();
 473   dst_as = dst_data->getRcComponent();
 474 #ifndef NDEBUG
 475   char* src_name = src_data->getName();
 476   char* dst_name = dst_data->getName();
 477 #endif
 478
 479   xbt_assert(src_as && dst_as,
 480              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 481
 482   /* (2) find the path to the root routing component */
 483   for (current = src_as; current != NULL; current = current->p_routingFather) {
 484     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 485       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 486     path_src[index_src++] = current;
 487   }
 488   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 489     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 490       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 491     path_dst[index_dst++] = current;
 492   }
 493
 494   /* (3) find the common father */
 495   do {
 496     current_src = path_src[--index_src];
 497     current_dst = path_dst[--index_dst];
 498   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 499
 500   /* (4) they are not in the same routing component, make the path */
 501   if (current_src == current_dst)
 502     father = current_src;
 503   else
 504     father = path_src[index_src + 1];
 505
 506   /* (5) result generation */
 507   *res_father = father;         /* first the common father of src and dst */
 508   *res_src = current_src;       /* second the first different father of src */
 509   *res_dst = current_dst;       /* three  the first different father of dst */
 510
 511 #undef ELEMENTS_FATHER_MAXDEPTH
 512 }
 513
 514 /* Global Business methods */
 515
 516 /**
 517  * \brief Recursive function for get_route_latency
 518  *
 519  * \param src the source host name
 520  * \param dst the destination host name
 521  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 522  * \param *latency the latency, if needed
 523  *
 524  * This function is called by "get_route" and "get_latency". It allows to walk
 525  * recursively through the ASes tree.
 526  */
 527 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
 528                                    xbt_dynar_t * links, double *latency)
 529 {
 530   s_sg_platf_route_cbarg_t route;
 531   memset(&route,0,sizeof(route));
 532
 533   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 534   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 535
 536   /* Find how src and dst are interconnected */
 537   AsPtr common_father, src_father, dst_father;
 538   elements_father(src, dst, &common_father, &src_father, &dst_father);
 539   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 540       common_father->p_name, src_father->p_name, dst_father->p_name);
 541
 542   /* Check whether a direct bypass is defined */
 543   sg_platf_route_cbarg_t e_route_bypass = NULL;
 544   //FIXME:REMOVE:if (common_father->get_bypass_route)
 545
 546   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 547
 548   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 549   if (e_route_bypass) {
 550     xbt_dynar_merge(links, &e_route_bypass->link_list);
 551     generic_free_route(e_route_bypass);
 552     return;
 553   }
 554
 555   /* If src and dst are in the same AS, life is good */
 556   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 557     route.link_list = *links;
 558     common_father->getRouteAndLatency(src, dst, &route, latency);
 559     // if vivaldi latency+=vivaldi(src,dst)
 560     return;
 561   }
 562
 563   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 564
 565   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 566   // Find the net_card corresponding to father
 567   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
 568   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
 569
 570   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
 571                                     &route, latency);
 572
 573   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 574       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 575
 576   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
 577   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
 578
 579   /* If source gateway is not our source, we have to recursively find our way up to this point */
 580   if (src != src_gateway_net_elm)
 581     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 582   xbt_dynar_merge(links, &route.link_list);
 583
 584   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 585   if (dst_gateway_net_elm != dst)
 586     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 587
 588   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
 589 }
 590
 591 AS_t surf_platf_get_root(routing_platf_t platf){
 592   return platf->p_root;
 593 }
 594
 595 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
 596   return edge->getRcType();
 597 }
 598
 599
 600 /**
 601  * \brief Find a route between hosts
 602  *
 603  * \param src the network_element_t for src host
 604  * \param dst the network_element_t for dst host
 605  * \param route where to store the list of links.
 606  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 607  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 608  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 609  * \pre route!=NULL
 610  *
 611  * walk through the routing components tree and find a route between hosts
 612  * by calling the differents "get_route" functions in each routing component.
 613  */
 614 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
 615                                    xbt_dynar_t* route, double *latency)
 616 {
 617   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
 618   if (!*route) {
 619     xbt_dynar_reset(routing_platf->p_lastRoute);
 620     *route = routing_platf->p_lastRoute;
 621   }
 622
 623   _get_route_and_latency(src, dst, route, latency);
 624
 625   xbt_assert(!latency || *latency >= 0.0,
 626              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 627 }
 628
 629 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 630   return recursiveGetOneLinkRoutes(p_root);
 631 }
 632
 633 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
 634 {
 635   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free_f);
 636
 637   //adding my one link routes
 638   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 639   if (onelink_mine)
 640     xbt_dynar_merge(&ret,&onelink_mine);
 641
 642   //recursing
 643   char *key;
 644   xbt_dict_cursor_t cursor = NULL;
 645   AS_t rc_child;
 646   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 647     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 648     if (onelink_child)
 649       xbt_dynar_merge(&ret,&onelink_child);
 650   }
 651   return ret;
 652 }
 653
 654 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 655 {
 656   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
 657   if (rc)
 658     return rc->getRcType();
 659
 660   return SURF_NETWORK_ELEMENT_NULL;
 661 }
 662
 663 /**
 664  * \brief Generic method: create the global routing schema
 665  *
 666  * Make a global routing structure and set all the parsing functions.
 667  */
 668 void routing_model_create( void *loopback)
 669 {
 670   /* config the uniq global routing */
 671   routing_platf = new RoutingPlatf();
 672   routing_platf->p_root = NULL;
 673   routing_platf->p_loopback = loopback;
 674   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 675   /* no current routing at moment */
 676   current_routing = NULL;
 677 }
 678
 679
 680 /* ************************************************** */
 681 /* ********** PATERN FOR NEW ROUTING **************** */
 682
 683 /* The minimal configuration of a new routing model need the next functions,
 684  * also you need to set at the start of the file, the new model in the model
 685  * list. Remember keep the null ending of the list.
 686  */
 687 /*** Routing model structure ***/
 688 // typedef struct {
 689 //   s_routing_component_t generic_routing;
 690 //   /* things that your routing model need */
 691 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 692
 693 /*** Parse routing model functions ***/
 694 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 695 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 696 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 697 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 698 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 699
 700 /*** Business methods ***/
 701 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 702 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 703 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 704
 705 /*** Creation routing model functions ***/
 706 // static void* model_NEW_create(void) {
 707 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 708 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 709 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 710 //   new_component->generic_routing.set_route = model_NEW_set_route;
 711 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 712 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 713 //   new_component->generic_routing.get_route = NEW_get_route;
 714 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 715 //   new_component->generic_routing.finalize = NEW_finalize;
 716 //   /* initialization of internal structures */
 717 //   return new_component;
 718 // } /* mandatory */
 719 // static void  model_NEW_load(void) {}   /* mandatory */
 720 // static void  model_NEW_unload(void) {} /* mandatory */
 721 // static void  model_NEW_end(void) {}    /* mandatory */
 722
 723 /* ************************************************************************** */
 724 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 725
 726 void routing_cluster_add_backbone(void* bb) {
 727   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 728         "You have to be in model Cluster to use tag backbone!");
 729   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
 730   surf_as_cluster_set_backbone(current_routing, bb);
 731   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 732 }
 733
 734 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 735 {
 736   int start, end, i;
 737   char *groups , *host_id , *link_id = NULL;
 738   unsigned int iter;
 739   xbt_dynar_t radical_elements;
 740   xbt_dynar_t radical_ends;
 741
 742   //Make all hosts
 743   radical_elements = xbt_str_split(cabinet->radical, ",");
 744   xbt_dynar_foreach(radical_elements, iter, groups) {
 745
 746     radical_ends = xbt_str_split(groups, "-");
 747     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 748
 749     switch (xbt_dynar_length(radical_ends)) {
 750     case 1:
 751       end = start;
 752       break;
 753     case 2:
 754       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 755       break;
 756     default:
 757       surf_parse_error("Malformed radical");
 758       break;
 759     }
 760     s_sg_platf_host_cbarg_t host;
 761     memset(&host, 0, sizeof(host));
 762     host.initial_state = SURF_RESOURCE_ON;
 763     host.pstate        = 0;
 764     host.power_scale   = 1.0;
 765     host.core_amount   = 1;
 766
 767     s_sg_platf_link_cbarg_t link;
 768     memset(&link, 0, sizeof(link));
 769     link.state     = SURF_RESOURCE_ON;
 770     link.policy    = SURF_LINK_FULLDUPLEX;
 771     link.latency   = cabinet->lat;
 772     link.bandwidth = cabinet->bw;
 773
 774     s_sg_platf_host_link_cbarg_t host_link;
 775     memset(&host_link, 0, sizeof(host_link));
 776
 777     for (i = start; i <= end; i++) {
 778       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 779       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 780       host.id                      = host_id;
 781       link.id                      = link_id;
 782       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 783       xbt_dynar_push(power_state_list,&cabinet->power);
 784       host.power_peak = power_state_list;
 785       sg_platf_new_host(&host);
 786       sg_platf_new_link(&link);
 787
 788       char* link_up       = bprintf("%s_UP",link_id);
 789       char* link_down     = bprintf("%s_DOWN",link_id);
 790       host_link.id        = host_id;
 791       host_link.link_up   = link_up;
 792       host_link.link_down = link_down;
 793       sg_platf_new_host_link(&host_link);
 794
 795       free(host_id);
 796       free(link_id);
 797       free(link_up);
 798       free(link_down);
 799     }
 800
 801     xbt_dynar_free(&radical_ends);
 802   }
 803   xbt_dynar_free(&radical_elements);
 804 }
 805
 806 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
 807 {
 808   char *host_id, *groups, *link_id = NULL;
 809   xbt_dict_t patterns = NULL;
 810   int rankId=0;
 811
 812   s_sg_platf_host_cbarg_t host;
 813   s_sg_platf_link_cbarg_t link;
 814
 815   unsigned int iter;
 816   int start, end, i;
 817   xbt_dynar_t radical_elements;
 818   xbt_dynar_t radical_ends;
 819
 820   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 821       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 822     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 823     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 824     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 825     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 826   }
 827
 828   /* parse the topology attribute. If we are not in a flat cluster,
 829    * switch to the right mode and initialize the routing with
 830    * the parameters in topo_parameters attribute
 831    */
 832   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 833   AS.id = cluster->id;
 834
 835   if(cluster->topology == SURF_CLUSTER_TORUS){
 836     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 837     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 838     sg_platf_new_AS_begin(&AS);
 839     ((AsClusterTorusPtr)current_routing)->parse_specific_arguments(cluster);
 840   }
 841   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 842     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 843     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 844     sg_platf_new_AS_begin(&AS);
 845     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 846   }
 847
 848   else{
 849     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 850     AS.routing = A_surfxml_AS_routing_Cluster;
 851     sg_platf_new_AS_begin(&AS);
 852   }
 853
 854   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 855       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 856       ((AsClusterPtr)current_routing)->p_has_loopback=1;
 857   }
 858
 859   if(cluster->limiter_link!=0){
 860       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
 861       ((AsClusterPtr)current_routing)->p_has_limiter=1;
 862   }
 863
 864
 865
 866   current_routing->p_linkUpDownList
 867             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 868
 869   //Make all hosts
 870   radical_elements = xbt_str_split(cluster->radical, ",");
 871   xbt_dynar_foreach(radical_elements, iter, groups) {
 872
 873     radical_ends = xbt_str_split(groups, "-");
 874     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 875
 876     switch (xbt_dynar_length(radical_ends)) {
 877     case 1:
 878       end = start;
 879       break;
 880     case 2:
 881       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 882       break;
 883     default:
 884       surf_parse_error("Malformed radical");
 885       break;
 886     }
 887     for (i = start; i <= end; i++) {
 888       host_id =
 889           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 890       link_id = bprintf("%s_link_%d", cluster->id, i);
 891
 892       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
 893
 894       memset(&host, 0, sizeof(host));
 895       host.id = host_id;
 896       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 897           xbt_dict_cursor_t cursor=NULL;
 898           char *key,*data;
 899           host.properties = xbt_dict_new();
 900
 901           xbt_dict_foreach(cluster->properties,cursor,key,data) {
 902                   xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 903           }
 904       }
 905       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 906         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 907         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 908         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 909         host.power_trace = tmgr_trace_new_from_file(avail_file);
 910         xbt_free(avail_file);
 911       } else {
 912         XBT_DEBUG("\tavailability_file=\"\"");
 913       }
 914
 915       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 916         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 917         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 918         host.state_trace = tmgr_trace_new_from_file(avail_file);
 919         xbt_free(avail_file);
 920       } else {
 921         XBT_DEBUG("\tstate_file=\"\"");
 922       }
 923
 924       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
 925       xbt_dynar_push(power_state_list,&cluster->power);
 926       host.power_peak = power_state_list;
 927       host.pstate = 0;
 928
 929       //host.power_peak = cluster->power;
 930       host.power_scale = 1.0;
 931       host.core_amount = cluster->core_amount;
 932       host.initial_state = SURF_RESOURCE_ON;
 933       host.coord = "";
 934       sg_platf_new_host(&host);
 935       XBT_DEBUG("</host>");
 936
 937       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 938                 cluster->bw, cluster->lat);
 939
 940
 941       s_surf_parsing_link_up_down_t info_lim, info_loop;
 942       // All links are saved in a matrix;
 943       // every row describes a single node; every node
 944       // may have multiple links.
 945       // the first column may store a link from x to x if p_has_loopback is set
 946       // the second column may store a limiter link if p_has_limiter is set
 947       // other columns are to store one or more link for the node
 948
 949       //add a loopback link
 950       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 951         char *tmp_link = bprintf("%s_loopback", link_id);
 952         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 953                 cluster->limiter_link);
 954
 955
 956         memset(&link, 0, sizeof(link));
 957         link.id        = tmp_link;
 958         link.bandwidth = cluster->loopback_bw;
 959         link.latency   = cluster->loopback_lat;
 960         link.state     = SURF_RESOURCE_ON;
 961         link.policy    = SURF_LINK_FATPIPE;
 962         sg_platf_new_link(&link);
 963         info_loop.link_up   =
 964             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 965         info_loop.link_down = info_loop.link_up;
 966         free(tmp_link);
 967         xbt_dynar_set(current_routing->p_linkUpDownList, rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node, &info_loop);
 968       }
 969
 970       //add a limiter link (shared link to account for maximal bandwidth of the node)
 971       if(cluster->limiter_link!=0){
 972         char *tmp_link = bprintf("%s_limiter", link_id);
 973         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 974                 cluster->limiter_link);
 975
 976
 977         memset(&link, 0, sizeof(link));
 978         link.id = tmp_link;
 979         link.bandwidth = cluster->limiter_link;
 980         link.latency = 0;
 981         link.state = SURF_RESOURCE_ON;
 982         link.policy = SURF_LINK_SHARED;
 983         sg_platf_new_link(&link);
 984         info_lim.link_up =
 985             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
 986         info_lim.link_down = info_lim.link_up;
 987         free(tmp_link);
 988         xbt_dynar_set(current_routing->p_linkUpDownList,
 989             rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node + ((AsClusterPtr)current_routing)->p_has_loopback ,
 990             &info_lim);
 991
 992       }
 993
 994
 995       //call the cluster function that adds the others links
 996       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 997         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 998       }
 999       else {
1000       ((AsClusterPtr)current_routing)->create_links_for_node(cluster, i, rankId, rankId*
1001           ((AsClusterPtr)current_routing)->p_nb_links_per_node
1002           + ((AsClusterPtr)current_routing)->p_has_loopback
1003           + ((AsClusterPtr)current_routing)->p_has_limiter );
1004       }
1005       xbt_free(link_id);
1006       xbt_free(host_id);
1007       rankId++;
1008     }
1009
1010     xbt_dynar_free(&radical_ends);
1011   }
1012   xbt_dynar_free(&radical_elements);
1013
1014   // For fat trees, the links must be created once all nodes have been added
1015   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
1016     ((AsClusterFatTree*)current_routing)->create_links();
1017   }
1018   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
1019   // and it's very useful to connect clusters together
1020   XBT_DEBUG(" ");
1021   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
1022   char *newid = NULL;
1023   s_sg_platf_router_cbarg_t router;
1024   memset(&router, 0, sizeof(router));
1025   router.id = cluster->router_id;
1026   router.coord = "";
1027   if (!router.id || !strcmp(router.id, ""))
1028     router.id = newid =
1029         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
1030                 cluster->suffix);
1031   sg_platf_new_router(&router);
1032   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1033   free(newid);
1034
1035   //Make the backbone
1036   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
1037     char *link_backbone = bprintf("%s_backbone", cluster->id);
1038     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1039               cluster->bb_bw, cluster->bb_lat);
1040
1041     memset(&link, 0, sizeof(link));
1042     link.id        = link_backbone;
1043     link.bandwidth = cluster->bb_bw;
1044     link.latency   = cluster->bb_lat;
1045     link.state     = SURF_RESOURCE_ON;
1046     link.policy    = cluster->bb_sharing_policy;
1047
1048     sg_platf_new_link(&link);
1049
1050     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
1051
1052     free(link_backbone);
1053   }
1054
1055   XBT_DEBUG("</AS>");
1056   sg_platf_new_AS_end();
1057   XBT_DEBUG(" ");
1058   xbt_dict_free(&patterns); // no op if it were never set
1059 }
1060
1061 static void routing_parse_postparse(void) {
1062   xbt_dict_free(&random_value);
1063 }
1064
1065 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1066 {
1067   char *host_id = NULL;
1068   char *link_id = NULL;
1069   char *router_id = NULL;
1070
1071   XBT_DEBUG(" ");
1072   host_id = HOST_PEER(peer->id);
1073   link_id = LINK_PEER(peer->id);
1074   router_id = ROUTER_PEER(peer->id);
1075
1076   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1077   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1078   AS.id                    = peer->id;
1079   AS.routing               = A_surfxml_AS_routing_Cluster;
1080   sg_platf_new_AS_begin(&AS);
1081
1082   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1083
1084   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1085   s_sg_platf_host_cbarg_t host;
1086   memset(&host, 0, sizeof(host));
1087   host.initial_state = SURF_RESOURCE_ON;
1088   host.id = host_id;
1089
1090   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1091   xbt_dynar_push(power_state_list,&peer->power);
1092   host.power_peak = power_state_list;
1093   host.pstate = 0;
1094   //host.power_peak = peer->power;
1095   host.power_scale = 1.0;
1096   host.power_trace = peer->availability_trace;
1097   host.state_trace = peer->state_trace;
1098   host.core_amount = 1;
1099   sg_platf_new_host(&host);
1100
1101   s_sg_platf_link_cbarg_t link;
1102   memset(&link, 0, sizeof(link));
1103   link.state   = SURF_RESOURCE_ON;
1104   link.policy  = SURF_LINK_SHARED;
1105   link.latency = peer->lat;
1106
1107   char* link_up = bprintf("%s_UP",link_id);
1108   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1109             peer->bw_out, peer->lat);
1110   link.id = link_up;
1111   link.bandwidth = peer->bw_out;
1112   sg_platf_new_link(&link);
1113
1114   char* link_down = bprintf("%s_DOWN",link_id);
1115   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1116             peer->bw_in, peer->lat);
1117   link.id = link_down;
1118   link.bandwidth = peer->bw_in;
1119   sg_platf_new_link(&link);
1120
1121   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1122   s_sg_platf_host_link_cbarg_t host_link;
1123   memset(&host_link, 0, sizeof(host_link));
1124   host_link.id        = host_id;
1125   host_link.link_up   = link_up;
1126   host_link.link_down = link_down;
1127   sg_platf_new_host_link(&host_link);
1128
1129   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1130   s_sg_platf_router_cbarg_t router;
1131   memset(&router, 0, sizeof(router));
1132   router.id = router_id;
1133   router.coord = peer->coord;
1134   sg_platf_new_router(&router);
1135   static_cast<AsClusterPtr>(current_routing)->p_router = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1136
1137   XBT_DEBUG("</AS>");
1138   sg_platf_new_AS_end();
1139   XBT_DEBUG(" ");
1140
1141   //xbt_dynar_free(&tab_elements_num);
1142   free(router_id);
1143   free(host_id);
1144   free(link_id);
1145   free(link_up);
1146   free(link_down);
1147 }
1148
1149 // static void routing_parse_Srandom(void)
1150 // {
1151 //   double mean, std, min, max, seed;
1152 //   char *random_id = A_surfxml_random_id;
1153 //   char *random_radical = A_surfxml_random_radical;
1154 //   char *rd_name = NULL;
1155 //   char *rd_value;
1156 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1157 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1158 //   min = surf_parse_get_double(A_surfxml_random_min);
1159 //   max = surf_parse_get_double(A_surfxml_random_max);
1160 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1161
1162 //   double res = 0;
1163 //   int i = 0;
1164 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1165 //   char *tmpbuf;
1166
1167 //   xbt_dynar_t radical_elements;
1168 //   unsigned int iter;
1169 //   char *groups;
1170 //   int start, end;
1171 //   xbt_dynar_t radical_ends;
1172
1173 //   switch (A_surfxml_random_generator) {
1174 //   case AU_surfxml_random_generator:
1175 //   case A_surfxml_random_generator_NONE:
1176 //     random->generator = NONE;
1177 //     break;
1178 //   case A_surfxml_random_generator_DRAND48:
1179 //     random->generator = DRAND48;
1180 //     break;
1181 //   case A_surfxml_random_generator_RAND:
1182 //     random->generator = RAND;
1183 //     break;
1184 //   case A_surfxml_random_generator_RNGSTREAM:
1185 //     random->generator = RNGSTREAM;
1186 //     break;
1187 //   default:
1188 //     surf_parse_error("Invalid random generator");
1189 //     break;
1190 //   }
1191 //   random->seed = seed;
1192 //   random->min = min;
1193 //   random->max = max;
1194
1195 //   /* Check user stupidities */
1196 //   if (max < min)
1197 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1198 //   if (mean < min)
1199 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1200 //   if (mean > max)
1201 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1202
1203 //   /* normalize the mean and standard deviation before storing */
1204 //   random->mean = (mean - min) / (max - min);
1205 //   random->std = std / (max - min);
1206
1207 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1208 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1209 //            random->mean, random->std);
1210
1211 //   XBT_DEBUG
1212 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1213 //        random_id, random->min, random->max, random->mean, random->std,
1214 //        (int)random->generator, random->seed, random_radical);
1215
1216 //   if (!random_value)
1217 //     random_value = xbt_dict_new_homogeneous(free);
1218
1219 //   if (!strcmp(random_radical, "")) {
1220 //     res = random_generate(random);
1221 //     rd_value = bprintf("%f", res);
1222 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1223 //   } else {
1224 //     radical_elements = xbt_str_split(random_radical, ",");
1225 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1226 //       radical_ends = xbt_str_split(groups, "-");
1227 //       switch (xbt_dynar_length(radical_ends)) {
1228 //       case 1:
1229 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1230 //                    "Custom Random '%s' already exists !", random_id);
1231 //         res = random_generate(random);
1232 //         tmpbuf =
1233 //             bprintf("%s%d", random_id,
1234 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1235 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1236 //         xbt_free(tmpbuf);
1237 //         break;
1238
1239 //       case 2:
1240 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1241 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1242 //         for (i = start; i <= end; i++) {
1243 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1244 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1245 //                                                                     random_id,
1246 //                                                                     i));
1247 //           res = random_generate(random);
1248 //           tmpbuf = bprintf("%s%d", random_id, i);
1249 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1250 //           xbt_free(tmpbuf);
1251 //         }
1252 //         break;
1253 //       default:
1254 //         XBT_CRITICAL("Malformed radical");
1255 //         break;
1256 //       }
1257 //       res = random_generate(random);
1258 //       rd_name = bprintf("%s_router", random_id);
1259 //       rd_value = bprintf("%f", res);
1260 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1261
1262 //       xbt_dynar_free(&radical_ends);
1263 //     }
1264 //     free(rd_name);
1265 //     xbt_dynar_free(&radical_elements);
1266 //   }
1267 // }
1268
1269 static void check_disk_attachment()
1270 {
1271   xbt_lib_cursor_t cursor;
1272   char *key;
1273   void **data;
1274   RoutingEdgePtr host_elm;
1275   xbt_lib_foreach(storage_lib, cursor, key, data) {
1276     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1277           StoragePtr storage = static_cast<StoragePtr>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1278           host_elm = sg_routing_edge_by_name_or_null(storage->p_attach);
1279           if(!host_elm)
1280                   surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1281     }
1282   }
1283 }
1284
1285 void routing_register_callbacks()
1286 {
1287   sg_platf_host_add_cb(parse_S_host);
1288   sg_platf_router_add_cb(parse_S_router);
1289   sg_platf_host_link_add_cb(parse_S_host_link);
1290   sg_platf_route_add_cb(parse_E_route);
1291   sg_platf_ASroute_add_cb(parse_E_ASroute);
1292   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1293   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1294
1295   sg_platf_cluster_add_cb(routing_parse_cluster);
1296   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1297
1298   sg_platf_peer_add_cb(routing_parse_peer);
1299   sg_platf_postparse_add_cb(routing_parse_postparse);
1300   sg_platf_postparse_add_cb(check_disk_attachment);
1301
1302   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1303   sg_platf_AS_end_add_cb(routing_AS_end);
1304   sg_platf_AS_begin_add_cb(routing_AS_begin);
1305
1306   sg_platf_trace_add_cb(routing_parse_trace);
1307   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1308
1309   instr_routing_define_callbacks();
1310 }
1311
1312 /**
1313  * \brief Recursive function for finalize
1314  *
1315  * \param rc the source host name
1316  *
1317  * This fuction is call by "finalize". It allow to finalize the
1318  * AS or routing components. It delete all the structures.
1319  */
1320 static void finalize_rec(AsPtr as) {
1321   xbt_dict_cursor_t cursor = NULL;
1322   char *key;
1323   AS_t elem;
1324
1325   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1326     finalize_rec(elem);
1327   }
1328
1329   delete as;;
1330 }
1331
1332 /** \brief Frees all memory allocated by the routing module */
1333 void routing_exit(void) {
1334   delete routing_platf;
1335 }
1336
1337 RoutingPlatf::~RoutingPlatf()
1338 {
1339         xbt_dynar_free(&p_lastRoute);
1340         finalize_rec(p_root);
1341 }
1342
1343 AS_t surf_AS_get_routing_root() {
1344   return routing_platf->p_root;
1345 }
1346
1347 const char *surf_AS_get_name(AsPtr as) {
1348   return as->p_name;
1349 }
1350
1351 static AsPtr surf_AS_recursive_get_by_name(AsPtr current, const char * name) {
1352   xbt_dict_cursor_t cursor = NULL;
1353   char *key;
1354   AS_t elem;
1355   AsPtr tmp = NULL;
1356
1357   if(!strcmp(current->p_name, name))
1358     return current;
1359
1360   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1361     tmp = surf_AS_recursive_get_by_name(elem, name);
1362     if(tmp != NULL ) {
1363         break;
1364     }
1365   }
1366   return tmp;
1367 }
1368
1369
1370 AsPtr surf_AS_get_by_name(const char * name) {
1371   AsPtr as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1372   if(as == NULL)
1373     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1374   return as;
1375 }
1376
1377 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1378   return as->p_routingSons;
1379 }
1380
1381 const char *surf_AS_get_model(AsPtr as) {
1382   return as->p_modelDesc->name;
1383 }
1384
1385 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1386   xbt_dynar_t elms = as->p_indexNetworkElm;
1387   sg_routing_edge_t relm;
1388   xbt_dictelm_t delm;
1389   int index;
1390   int count = xbt_dynar_length(elms);
1391   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1392   for (index = 0; index < count; index++) {
1393      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1394      delm = xbt_lib_get_elm_or_null(host_lib, relm->getName());
1395      if (delm!=NULL) {
1396        xbt_dynar_push(res, &delm);
1397      }
1398   }
1399   return res;
1400 }
1401
1402 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1403   as->getGraph(graph, nodes, edges);
1404 }