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