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 #include "src/surf/platform.hpp"
  17 #include "surf/surfxml_parse_values.h"
  18
  19 /*************
  20  * Callbacks *
  21  *************/
  22
  23 namespace simgrid {
  24 namespace surf {
  25
  26 simgrid::xbt::signal<void(simgrid::surf::NetCard*)> netcardCreatedCallbacks;
  27 simgrid::xbt::signal<void(simgrid::surf::As*)> asCreatedCallbacks;
  28
  29 }
  30 }
  31
  32 /**
  33  * @ingroup SURF_build_api
  34  * @brief A library containing all known hosts
  35  */
  36 xbt_dict_t host_list;
  37
  38 int COORD_HOST_LEVEL=0;         //Coordinates level
  39
  40 int MSG_FILE_LEVEL;             //Msg file level
  41
  42 int SIMIX_STORAGE_LEVEL;        //Simix storage level
  43 int MSG_STORAGE_LEVEL;          //Msg storage level
  44
  45 xbt_lib_t as_router_lib;
  46 int ROUTING_ASR_LEVEL;          //Routing level
  47 int COORD_ASR_LEVEL;            //Coordinates level
  48 int NS3_ASR_LEVEL;              //host node for ns3
  49 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
  50
  51 static xbt_dict_t random_value = NULL;
  52
  53
  54 /** @brief Retrieve a netcard from its name
  55  *
  56  * Netcards are the thing that connect host or routers to the network
  57  */
  58 simgrid::surf::NetCard *sg_netcard_by_name_or_null(const char *name)
  59 {
  60   sg_host_t h = sg_host_by_name(name);
  61   simgrid::surf::NetCard *net_elm = h==NULL?NULL: h->pimpl_netcard;
  62   if (!net_elm)
  63     net_elm = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
  64   return net_elm;
  65 }
  66
  67 /* Global vars */
  68 simgrid::surf::RoutingPlatf *routing_platf = 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 /** The current AS in the parsing */
  76 static simgrid::surf::As *current_routing = NULL;
  77 simgrid::surf::As* routing_get_current()
  78 {
  79   return current_routing;
  80 }
  81
  82 static void routing_parse_postparse(void);
  83
  84 /* this lines are only for replace use like index in the model table */
  85 typedef enum {
  86   SURF_MODEL_FULL = 0,
  87   SURF_MODEL_FLOYD,
  88   SURF_MODEL_DIJKSTRA,
  89   SURF_MODEL_DIJKSTRACACHE,
  90   SURF_MODEL_NONE,
  91   SURF_MODEL_VIVALDI,
  92   SURF_MODEL_CLUSTER,
  93   SURF_MODEL_TORUS_CLUSTER,
  94   SURF_MODEL_FAT_TREE_CLUSTER,
  95 } e_routing_types;
  96
  97 struct s_model_type routing_models[] = {
  98   {"Full",
  99    "Full routing data (fast, large memory requirements, fully expressive)",
 100    model_full_create, model_full_end},
 101   {"Floyd",
 102    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
 103    model_floyd_create, model_floyd_end},
 104   {"Dijkstra",
 105    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
 106    model_dijkstra_create, model_dijkstra_both_end},
 107   {"DijkstraCache",
 108    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
 109    model_dijkstracache_create, model_dijkstra_both_end},
 110   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
 111    model_none_create,  NULL},
 112   {"Vivaldi", "Vivaldi routing",
 113    model_vivaldi_create, NULL},
 114   {"Cluster", "Cluster routing",
 115    model_cluster_create, NULL},
 116   {"Torus_Cluster", "Torus Cluster routing",
 117    model_torus_cluster_create, NULL},
 118   {"Fat_Tree_Cluster", "Fat Tree Cluster routing",
 119    model_fat_tree_cluster_create, NULL},
 120   {NULL, NULL, NULL, NULL}
 121 };
 122
 123 /**
 124  * \brief Add a netcard connecting an host to the network element list
 125  * FIXME: integrate into host constructor
 126  */
 127 void sg_platf_new_netcard(sg_platf_host_link_cbarg_t netcard)
 128 {
 129   simgrid::surf::NetCard *info = sg_host_by_name(netcard->id)->pimpl_netcard;
 130   xbt_assert(info, "Host '%s' not found!", netcard->id);
 131   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
 132       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
 133       "You have to be in model Cluster to use tag host_link!");
 134
 135   s_surf_parsing_link_up_down_t link_up_down;
 136   link_up_down.link_up = Link::byName(netcard->link_up);
 137   link_up_down.link_down = Link::byName(netcard->link_down);
 138
 139   xbt_assert(link_up_down.link_up, "Link '%s' not found!",netcard->link_up);
 140   xbt_assert(link_up_down.link_down, "Link '%s' not found!",netcard->link_down);
 141
 142   if(!current_routing->p_linkUpDownList)
 143     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 144
 145   // If dynar is is greater than netcard id and if the host_link is already defined
 146   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
 147       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
 148   surf_parse_error("Host_link for '%s' is already defined!",netcard->id);
 149
 150   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
 151   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
 152 }
 153
 154 /**
 155  * \brief Add a "host" to the network element list
 156  */
 157 simgrid::surf::NetCard *routing_add_host(
 158   simgrid::surf::As* current_routing, sg_platf_host_cbarg_t host)
 159 {
 160   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 161     current_routing->p_hierarchy = SURF_ROUTING_BASE;
 162   xbt_assert(!sg_host_by_name(host->id),
 163          "Reading a host, processing unit \"%s\" already exists", host->id);
 164
 165   simgrid::surf::NetCard *netcard =
 166     new simgrid::surf::NetCardImpl(xbt_strdup(host->id),
 167                                         -1,
 168                                         SURF_NETWORK_ELEMENT_HOST,
 169                                         current_routing);
 170   netcard->setId(current_routing->parsePU(netcard));
 171   sg_host_t h = sg_host_by_name_or_create(host->id);
 172   h->pimpl_netcard = netcard;
 173   XBT_DEBUG("Having set name '%s' id '%d'", host->id, netcard->getId());
 174   simgrid::surf::netcardCreatedCallbacks(netcard);
 175
 176   if(mount_list){
 177     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 178     mount_list = NULL;
 179   }
 180
 181   if (host->coord && strcmp(host->coord, "")) {
 182     unsigned int cursor;
 183     char*str;
 184
 185     if (!COORD_HOST_LEVEL)
 186       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 187     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 188     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 189     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 190     xbt_dynar_foreach(ctn_str,cursor, str) {
 191       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 192       xbt_dynar_push(ctn,&val);
 193     }
 194     xbt_dynar_shrink(ctn, 0);
 195     xbt_dynar_free(&ctn_str);
 196     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
 197     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
 198   }
 199
 200   return netcard;
 201 }
 202
 203 void sg_platf_new_trace(sg_platf_trace_cbarg_t trace)
 204 {
 205   tmgr_trace_t tmgr_trace;
 206   if (!trace->file || strcmp(trace->file, "") != 0) {
 207     tmgr_trace = tmgr_trace_new_from_file(trace->file);
 208   } else {
 209     xbt_assert(strcmp(trace->pc_data, ""),
 210         "Trace '%s' must have either a content, or point to a file on disk.",trace->id);
 211     tmgr_trace = tmgr_trace_new_from_string(trace->id, trace->pc_data, trace->periodicity);
 212   }
 213   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
 214 }
 215
 216 /**
 217  * \brief Make a new routing component to the platform
 218  *
 219  * Add a new autonomous system to the platform. Any elements (such as host,
 220  * router or sub-AS) added after this call and before the corresponding call
 221  * to sg_platf_new_AS_close() will be added to this AS.
 222  *
 223  * Once this function was called, the configuration concerning the used
 224  * models cannot be changed anymore.
 225  *
 226  * @param AS_id name of this autonomous system. Must be unique in the platform
 227  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 228  */
 229 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
 230 {
 231   XBT_DEBUG("routing_AS_begin");
 232   routing_model_description_t model = NULL;
 233
 234   xbt_assert(!xbt_lib_get_or_null
 235              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 236              "The AS \"%s\" already exists", AS->id);
 237
 238   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
 239                             * controlling the level of configuration to prevent
 240                             * any further config */
 241
 242   /* search the routing model */
 243   switch(AS->routing){
 244     case A_surfxml_AS_routing_Cluster:               model = &routing_models[SURF_MODEL_CLUSTER];break;
 245     case A_surfxml_AS_routing_Cluster___torus:       model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
 246     case A_surfxml_AS_routing_Cluster___fat___tree:  model = &routing_models[SURF_MODEL_FAT_TREE_CLUSTER];break;
 247     case A_surfxml_AS_routing_Dijkstra:              model = &routing_models[SURF_MODEL_DIJKSTRA];break;
 248     case A_surfxml_AS_routing_DijkstraCache:         model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
 249     case A_surfxml_AS_routing_Floyd:                 model = &routing_models[SURF_MODEL_FLOYD];break;
 250     case A_surfxml_AS_routing_Full:                  model = &routing_models[SURF_MODEL_FULL];break;
 251     case A_surfxml_AS_routing_None:                  model = &routing_models[SURF_MODEL_NONE];break;
 252     case A_surfxml_AS_routing_Vivaldi:               model = &routing_models[SURF_MODEL_VIVALDI];break;
 253     default: xbt_die("Not a valid model!!!");
 254     break;
 255   }
 256
 257   /* make a new routing component */
 258   simgrid::surf::As *new_as = model->create();
 259
 260   new_as->p_modelDesc = model;
 261   new_as->p_hierarchy = SURF_ROUTING_NULL;
 262   new_as->p_name = xbt_strdup(AS->id);
 263
 264   simgrid::surf::NetCard *info =
 265     new simgrid::surf::NetCardImpl(xbt_strdup(new_as->p_name),
 266                                             -1,
 267                                             SURF_NETWORK_ELEMENT_AS,
 268                                             current_routing);
 269   if (current_routing == NULL && routing_platf->p_root == NULL) {
 270
 271     /* it is the first one */
 272     new_as->p_routingFather = NULL;
 273     routing_platf->p_root = new_as;
 274     info->setId(-1);
 275   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
 276
 277     xbt_assert(!xbt_dict_get_or_null
 278                (current_routing->p_routingSons, AS->id),
 279                "The AS \"%s\" already exists", AS->id);
 280     /* it is a part of the tree */
 281     new_as->p_routingFather = current_routing;
 282     /* set the father behavior */
 283     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
 284       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
 285     /* add to the sons dictionary */
 286     xbt_dict_set(current_routing->p_routingSons, AS->id,
 287                  (void *) new_as, NULL);
 288     /* add to the father element list */
 289     info->setId(current_routing->parseAS(info));
 290   } else {
 291     THROWF(arg_error, 0, "All defined components must belong to a AS");
 292   }
 293
 294   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
 295               (void *) info);
 296   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
 297
 298   /* set the new current component of the tree */
 299   current_routing = new_as;
 300   current_routing->p_netcard = info;
 301
 302   simgrid::surf::netcardCreatedCallbacks(info);
 303   simgrid::surf::asCreatedCallbacks(new_as);
 304 }
 305
 306 /**
 307  * \brief Specify that the current description of AS is finished
 308  *
 309  * Once you've declared all the content of your AS, you have to close
 310  * it with this call. Your AS is not usable until you call this function.
 311  *
 312  * @fixme: this call is not as robust as wanted: bad things WILL happen
 313  * if you call it twice for the same AS, or if you forget calling it, or
 314  * even if you add stuff to a closed AS
 315  *
 316  */
 317 void routing_AS_end()
 318 {
 319
 320   if (current_routing == NULL) {
 321     THROWF(arg_error, 0, "Close an AS, but none was under construction");
 322   } else {
 323     if (current_routing->p_modelDesc->end)
 324       current_routing->p_modelDesc->end(current_routing);
 325     current_routing = current_routing->p_routingFather;
 326   }
 327 }
 328
 329 /* Aux Business methods */
 330
 331 /**
 332  * \brief Get the AS father and the first elements of the chain
 333  *
 334  * \param src the source host name
 335  * \param dst the destination host name
 336  *
 337  * Get the common father of the to processing units, and the first different
 338  * father in the chain
 339  */
 340 static void elements_father(sg_netcard_t src, sg_netcard_t dst,
 341                             AS_t * res_father,
 342                             AS_t * res_src,
 343                             AS_t * res_dst)
 344 {
 345   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
 346 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
 347   simgrid::surf::As *src_as, *dst_as;
 348   simgrid::surf::As *path_src[ELEMENTS_FATHER_MAXDEPTH];
 349   simgrid::surf::As *path_dst[ELEMENTS_FATHER_MAXDEPTH];
 350   int index_src = 0;
 351   int index_dst = 0;
 352   simgrid::surf::As *current;
 353   simgrid::surf::As *current_src;
 354   simgrid::surf::As *current_dst;
 355   simgrid::surf::As *father;
 356
 357   /* (1) find the as where the src and dst are located */
 358   sg_netcard_t src_data = src;
 359   sg_netcard_t dst_data = dst;
 360   src_as = src_data->getRcComponent();
 361   dst_as = dst_data->getRcComponent();
 362 #ifndef NDEBUG
 363   char* src_name = src_data->getName();
 364   char* dst_name = dst_data->getName();
 365 #endif
 366
 367   xbt_assert(src_as && dst_as,
 368              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
 369
 370   /* (2) find the path to the root routing component */
 371   for (current = src_as; current != NULL; current = current->p_routingFather) {
 372     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
 373       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
 374     path_src[index_src++] = current;
 375   }
 376   for (current = dst_as; current != NULL; current = current->p_routingFather) {
 377     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
 378       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
 379     path_dst[index_dst++] = current;
 380   }
 381
 382   /* (3) find the common father */
 383   do {
 384     current_src = path_src[--index_src];
 385     current_dst = path_dst[--index_dst];
 386   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
 387
 388   /* (4) they are not in the same routing component, make the path */
 389   if (current_src == current_dst)
 390     father = current_src;
 391   else
 392     father = path_src[index_src + 1];
 393
 394   /* (5) result generation */
 395   *res_father = father;         /* first the common father of src and dst */
 396   *res_src = current_src;       /* second the first different father of src */
 397   *res_dst = current_dst;       /* three  the first different father of dst */
 398
 399 #undef ELEMENTS_FATHER_MAXDEPTH
 400 }
 401
 402 /* Global Business methods */
 403
 404 /**
 405  * \brief Recursive function for get_route_latency
 406  *
 407  * \param src the source host name
 408  * \param dst the destination host name
 409  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
 410  * \param *latency the latency, if needed
 411  *
 412  * This function is called by "get_route" and "get_latency". It allows to walk
 413  * recursively through the ASes tree.
 414  */
 415 static void _get_route_and_latency(
 416   simgrid::surf::NetCard *src, simgrid::surf::NetCard *dst,
 417   xbt_dynar_t * links, double *latency)
 418 {
 419   s_sg_platf_route_cbarg_t route = SG_PLATF_ROUTE_INITIALIZER;
 420   memset(&route,0,sizeof(route));
 421
 422   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
 423   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
 424
 425   /* Find how src and dst are interconnected */
 426   simgrid::surf::As *common_father, *src_father, *dst_father;
 427   elements_father(src, dst, &common_father, &src_father, &dst_father);
 428   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
 429       common_father->p_name, src_father->p_name, dst_father->p_name);
 430
 431   /* Check whether a direct bypass is defined */
 432   sg_platf_route_cbarg_t e_route_bypass = NULL;
 433   //FIXME:REMOVE:if (common_father->get_bypass_route)
 434
 435   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
 436
 437   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
 438   if (e_route_bypass) {
 439     xbt_dynar_merge(links, &e_route_bypass->link_list);
 440     generic_free_route(e_route_bypass);
 441     return;
 442   }
 443
 444   /* If src and dst are in the same AS, life is good */
 445   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
 446     route.link_list = *links;
 447     common_father->getRouteAndLatency(src, dst, &route, latency);
 448     // if vivaldi latency+=vivaldi(src,dst)
 449     return;
 450   }
 451
 452   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
 453
 454   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
 455   // Find the net_card corresponding to father
 456   simgrid::surf::NetCard *src_father_netcard = src_father->p_netcard;
 457   simgrid::surf::NetCard *dst_father_netcard = dst_father->p_netcard;
 458
 459   common_father->getRouteAndLatency(src_father_netcard, dst_father_netcard,
 460                                     &route, latency);
 461
 462   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
 463       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
 464
 465   sg_netcard_t src_gateway_net_elm = route.gw_src;
 466   sg_netcard_t dst_gateway_net_elm = route.gw_dst;
 467
 468   /* If source gateway is not our source, we have to recursively find our way up to this point */
 469   if (src != src_gateway_net_elm)
 470     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
 471   xbt_dynar_merge(links, &route.link_list);
 472
 473   /* If dest gateway is not our destination, we have to recursively find our way from this point */
 474   if (dst_gateway_net_elm != dst)
 475     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
 476
 477 }
 478
 479 AS_t surf_platf_get_root(routing_platf_t platf){
 480   return platf->p_root;
 481 }
 482
 483 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_netcard_t netcard){
 484   return netcard->getRcType();
 485 }
 486
 487 namespace simgrid {
 488 namespace surf {
 489
 490 /**
 491  * \brief Find a route between hosts
 492  *
 493  * \param src the network_element_t for src host
 494  * \param dst the network_element_t for dst host
 495  * \param route where to store the list of links.
 496  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
 497  * \param latency where to store the latency experienced on the path (or NULL if not interested)
 498  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
 499  * \pre route!=NULL
 500  *
 501  * walk through the routing components tree and find a route between hosts
 502  * by calling each "get_route" function in each routing component.
 503  */
 504 void RoutingPlatf::getRouteAndLatency(NetCard *src, NetCard *dst, xbt_dynar_t* route, double *latency)
 505 {
 506   XBT_DEBUG("getRouteAndLatency from %s to %s", src->getName(), dst->getName());
 507   if (NULL == *route) {
 508     xbt_dynar_reset(routing_platf->p_lastRoute);
 509     *route = routing_platf->p_lastRoute;
 510   }
 511
 512   _get_route_and_latency(src, dst, route, latency);
 513
 514   xbt_assert(!latency || *latency >= 0.0,
 515              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
 516 }
 517
 518 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
 519   return recursiveGetOneLinkRoutes(p_root);
 520 }
 521
 522 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(As *rc)
 523 {
 524   xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
 525
 526   //adding my one link routes
 527   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
 528   if (onelink_mine)
 529     xbt_dynar_merge(&ret,&onelink_mine);
 530
 531   //recursing
 532   char *key;
 533   xbt_dict_cursor_t cursor = NULL;
 534   AS_t rc_child;
 535   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
 536     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
 537     if (onelink_child)
 538       xbt_dynar_merge(&ret,&onelink_child);
 539   }
 540   return ret;
 541 }
 542
 543 }
 544 }
 545
 546 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
 547 {
 548   simgrid::surf::NetCard *rc = sg_netcard_by_name_or_null(name);
 549   if (rc)
 550     return rc->getRcType();
 551
 552   return SURF_NETWORK_ELEMENT_NULL;
 553 }
 554
 555 /**
 556  * \brief Generic method: create the global routing schema
 557  *
 558  * Make a global routing structure and set all the parsing functions.
 559  */
 560 void routing_model_create( void *loopback)
 561 {
 562   /* config the uniq global routing */
 563   routing_platf = new simgrid::surf::RoutingPlatf();
 564   routing_platf->p_root = NULL;
 565   routing_platf->p_loopback = loopback;
 566   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
 567   /* no current routing at moment */
 568   current_routing = NULL;
 569 }
 570
 571
 572 /* ************************************************** */
 573 /* ********** PATERN FOR NEW ROUTING **************** */
 574
 575 /* The minimal configuration of a new routing model need the next functions,
 576  * also you need to set at the start of the file, the new model in the model
 577  * list. Remember keep the null ending of the list.
 578  */
 579 /*** Routing model structure ***/
 580 // typedef struct {
 581 //   s_routing_component_t generic_routing;
 582 //   /* things that your routing model need */
 583 // } s_routing_component_NEW_t,*routing_component_NEW_t;
 584
 585 /*** Parse routing model functions ***/
 586 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
 587 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
 588 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
 589 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
 590 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 591
 592 /*** Business methods ***/
 593 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 594 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
 595 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
 596
 597 /*** Creation routing model functions ***/
 598 // static void* model_NEW_create(void) {
 599 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
 600 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
 601 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
 602 //   new_component->generic_routing.set_route = model_NEW_set_route;
 603 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
 604 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
 605 //   new_component->generic_routing.get_route = NEW_get_route;
 606 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
 607 //   new_component->generic_routing.finalize = NEW_finalize;
 608 //   /* initialization of internal structures */
 609 //   return new_component;
 610 // } /* mandatory */
 611 // static void  model_NEW_load(void) {}   /* mandatory */
 612 // static void  model_NEW_unload(void) {} /* mandatory */
 613 // static void  model_NEW_end(void) {}    /* mandatory */
 614
 615 /* ************************************************************************** */
 616 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
 617
 618 void routing_cluster_add_backbone(void* bb) {
 619   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
 620         "You have to be in model Cluster to use tag backbone!");
 621   xbt_assert(!static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone, "The backbone link is already defined!");
 622   static_cast<simgrid::surf::AsCluster*>(current_routing)->p_backbone =
 623     static_cast<simgrid::surf::Link*>(bb);
 624   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
 625 }
 626
 627 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 628 {
 629   int start, end, i;
 630   char *groups , *host_id , *link_id = NULL;
 631   unsigned int iter;
 632   xbt_dynar_t radical_elements;
 633   xbt_dynar_t radical_ends;
 634
 635   //Make all hosts
 636   radical_elements = xbt_str_split(cabinet->radical, ",");
 637   xbt_dynar_foreach(radical_elements, iter, groups) {
 638
 639     radical_ends = xbt_str_split(groups, "-");
 640     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 641
 642     switch (xbt_dynar_length(radical_ends)) {
 643     case 1:
 644       end = start;
 645       break;
 646     case 2:
 647       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 648       break;
 649     default:
 650       surf_parse_error("Malformed radical");
 651       break;
 652     }
 653     s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 654     memset(&host, 0, sizeof(host));
 655     host.initiallyOn   = 1;
 656     host.pstate        = 0;
 657     host.speed_scale   = 1.0;
 658     host.core_amount   = 1;
 659
 660     s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 661     memset(&link, 0, sizeof(link));
 662     link.initiallyOn = 1;
 663     link.policy    = SURF_LINK_FULLDUPLEX;
 664     link.latency   = cabinet->lat;
 665     link.bandwidth = cabinet->bw;
 666
 667     s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
 668     memset(&host_link, 0, sizeof(host_link));
 669
 670     for (i = start; i <= end; i++) {
 671       host_id                      = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
 672       link_id                      = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
 673       host.id                      = host_id;
 674       link.id                      = link_id;
 675       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 676       xbt_dynar_push(host.speed_peak,&cabinet->speed);
 677       sg_platf_new_host(&host);
 678       xbt_dynar_free(&host.speed_peak);
 679       sg_platf_new_link(&link);
 680
 681       char* link_up       = bprintf("%s_UP",link_id);
 682       char* link_down     = bprintf("%s_DOWN",link_id);
 683       host_link.id        = host_id;
 684       host_link.link_up   = link_up;
 685       host_link.link_down = link_down;
 686       sg_platf_new_netcard(&host_link);
 687
 688       free(host_id);
 689       free(link_id);
 690       free(link_up);
 691       free(link_down);
 692     }
 693
 694     xbt_dynar_free(&radical_ends);
 695   }
 696   xbt_dynar_free(&radical_elements);
 697 }
 698
 699 void routing_new_cluster(sg_platf_cluster_cbarg_t cluster)
 700 {
 701   using simgrid::surf::AsCluster;
 702   using simgrid::surf::AsClusterTorus;
 703   using simgrid::surf::AsClusterFatTree;
 704
 705   char *host_id, *groups, *link_id = NULL;
 706   xbt_dict_t patterns = NULL;
 707   int rankId=0;
 708
 709   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 710   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
 711
 712   unsigned int iter;
 713   int start, end, i;
 714   xbt_dynar_t radical_elements;
 715   xbt_dynar_t radical_ends;
 716
 717   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
 718       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
 719     patterns = xbt_dict_new_homogeneous(xbt_free_f);
 720     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
 721     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
 722     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
 723   }
 724
 725   /* parse the topology attribute. If we are not in a flat cluster,
 726    * switch to the right mode and initialize the routing with
 727    * the parameters in topo_parameters attribute
 728    */
 729   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 730   AS.id = cluster->id;
 731
 732   if(cluster->topology == SURF_CLUSTER_TORUS){
 733     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
 734     AS.routing = A_surfxml_AS_routing_Cluster___torus;
 735     sg_platf_new_AS_begin(&AS);
 736     ((AsClusterTorus*)current_routing)->parse_specific_arguments(cluster);
 737   }
 738   else if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 739     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Fat_Tree_Cluster\">", cluster->id);
 740     AS.routing = A_surfxml_AS_routing_Cluster___fat___tree;
 741     sg_platf_new_AS_begin(&AS);
 742     ((AsClusterFatTree*)current_routing)->parse_specific_arguments(cluster);
 743   }
 744
 745   else{
 746     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
 747     AS.routing = A_surfxml_AS_routing_Cluster;
 748     sg_platf_new_AS_begin(&AS);
 749   }
 750
 751   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 752       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 753       ((AsCluster*)current_routing)->p_has_loopback=1;
 754   }
 755
 756   if(cluster->limiter_link!=0){
 757       ((AsCluster*)current_routing)->p_nb_links_per_node++;
 758       ((AsCluster*)current_routing)->p_has_limiter=1;
 759   }
 760
 761
 762
 763   current_routing->p_linkUpDownList
 764             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 765
 766   //Make all hosts
 767   radical_elements = xbt_str_split(cluster->radical, ",");
 768   xbt_dynar_foreach(radical_elements, iter, groups) {
 769
 770     radical_ends = xbt_str_split(groups, "-");
 771     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
 772
 773     switch (xbt_dynar_length(radical_ends)) {
 774     case 1:
 775       end = start;
 776       break;
 777     case 2:
 778       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
 779       break;
 780     default:
 781       surf_parse_error("Malformed radical");
 782       break;
 783     }
 784     for (i = start; i <= end; i++) {
 785       host_id =
 786           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 787       link_id = bprintf("%s_link_%d", cluster->id, i);
 788
 789       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 790
 791       memset(&host, 0, sizeof(host));
 792       host.id = host_id;
 793       if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 794         xbt_dict_cursor_t cursor=NULL;
 795         char *key,*data;
 796         host.properties = xbt_dict_new();
 797
 798         xbt_dict_foreach(cluster->properties,cursor,key,data) {
 799           xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 800         }
 801       }
 802       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
 803         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
 804         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
 805         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
 806         host.speed_trace = tmgr_trace_new_from_file(avail_file);
 807         xbt_free(avail_file);
 808       } else {
 809         XBT_DEBUG("\tavailability_file=\"\"");
 810       }
 811
 812       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
 813         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
 814         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
 815         host.state_trace = tmgr_trace_new_from_file(avail_file);
 816         xbt_free(avail_file);
 817       } else {
 818         XBT_DEBUG("\tstate_file=\"\"");
 819       }
 820
 821       host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 822       xbt_dynar_push(host.speed_peak,&cluster->speed);
 823       host.pstate = 0;
 824
 825       //host.power_peak = cluster->power;
 826       host.speed_scale = 1.0;
 827       host.core_amount = cluster->core_amount;
 828       host.initiallyOn = 1;
 829       host.coord = "";
 830       sg_platf_new_host(&host);
 831       xbt_dynar_free(&host.speed_peak);
 832       XBT_DEBUG("</host>");
 833
 834       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
 835                 cluster->bw, cluster->lat);
 836
 837
 838       s_surf_parsing_link_up_down_t info_lim, info_loop;
 839       // All links are saved in a matrix;
 840       // every row describes a single node; every node
 841       // may have multiple links.
 842       // the first column may store a link from x to x if p_has_loopback is set
 843       // the second column may store a limiter link if p_has_limiter is set
 844       // other columns are to store one or more link for the node
 845
 846       //add a loopback link
 847       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 848         char *tmp_link = bprintf("%s_loopback", link_id);
 849         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 850                 cluster->limiter_link);
 851
 852
 853         memset(&link, 0, sizeof(link));
 854         link.id        = tmp_link;
 855         link.bandwidth = cluster->loopback_bw;
 856         link.latency   = cluster->loopback_lat;
 857         link.initiallyOn = 1;
 858         link.policy    = SURF_LINK_FATPIPE;
 859         sg_platf_new_link(&link);
 860         info_loop.link_up   = Link::byName(tmp_link);
 861         info_loop.link_down = info_loop.link_up;
 862         free(tmp_link);
 863         xbt_dynar_set(current_routing->p_linkUpDownList,
 864           rankId*(static_cast<AsCluster*>(current_routing))->p_nb_links_per_node, &info_loop);
 865       }
 866
 867       //add a limiter link (shared link to account for maximal bandwidth of the node)
 868       if(cluster->limiter_link!=0){
 869         char *tmp_link = bprintf("%s_limiter", link_id);
 870         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
 871                 cluster->limiter_link);
 872
 873
 874         memset(&link, 0, sizeof(link));
 875         link.id = tmp_link;
 876         link.bandwidth = cluster->limiter_link;
 877         link.latency = 0;
 878         link.initiallyOn = 1;
 879         link.policy = SURF_LINK_SHARED;
 880         sg_platf_new_link(&link);
 881         info_lim.link_up = Link::byName(tmp_link);
 882         info_lim.link_down = info_lim.link_up;
 883         free(tmp_link);
 884         auto as_cluster = static_cast<AsCluster*>(current_routing);
 885         xbt_dynar_set(current_routing->p_linkUpDownList,
 886             rankId*(as_cluster)->p_nb_links_per_node + as_cluster->p_has_loopback ,
 887             &info_lim);
 888
 889       }
 890
 891
 892       //call the cluster function that adds the others links
 893       if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 894         ((AsClusterFatTree*) current_routing)->addProcessingNode(i);
 895       }
 896       else {
 897       static_cast<AsCluster*>(current_routing)->create_links_for_node(cluster, i, rankId, rankId*
 898           static_cast<AsCluster*>(current_routing)->p_nb_links_per_node
 899           + static_cast<AsCluster*>(current_routing)->p_has_loopback
 900           + static_cast<AsCluster*>(current_routing)->p_has_limiter );
 901       }
 902       xbt_free(link_id);
 903       xbt_free(host_id);
 904       rankId++;
 905     }
 906
 907     xbt_dynar_free(&radical_ends);
 908   }
 909   xbt_dynar_free(&radical_elements);
 910
 911   // For fat trees, the links must be created once all nodes have been added
 912   if(cluster->topology == SURF_CLUSTER_FAT_TREE) {
 913     static_cast<simgrid::surf::AsClusterFatTree*>(current_routing)->create_links();
 914   }
 915   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 916   // and it's very useful to connect clusters together
 917   XBT_DEBUG(" ");
 918   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 919   char *newid = NULL;
 920   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
 921   memset(&router, 0, sizeof(router));
 922   router.id = cluster->router_id;
 923   router.coord = "";
 924   if (!router.id || !strcmp(router.id, ""))
 925     router.id = newid =
 926         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
 927                 cluster->suffix);
 928   sg_platf_new_router(&router);
 929   ((AsCluster*)current_routing)->p_router = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 930   free(newid);
 931
 932   //Make the backbone
 933   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 934     char *link_backbone = bprintf("%s_backbone", cluster->id);
 935     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
 936               cluster->bb_bw, cluster->bb_lat);
 937
 938     memset(&link, 0, sizeof(link));
 939     link.id        = link_backbone;
 940     link.bandwidth = cluster->bb_bw;
 941     link.latency   = cluster->bb_lat;
 942     link.initiallyOn = 1;
 943     link.policy    = cluster->bb_sharing_policy;
 944
 945     sg_platf_new_link(&link);
 946
 947     routing_cluster_add_backbone(Link::byName(link_backbone));
 948
 949     free(link_backbone);
 950   }
 951
 952   XBT_DEBUG("</AS>");
 953   sg_platf_new_AS_end();
 954   XBT_DEBUG(" ");
 955   xbt_dict_free(&patterns); // no op if it were never set
 956 }
 957
 958 static void routing_parse_postparse(void) {
 959   xbt_dict_free(&random_value);
 960 }
 961
 962 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 963 {
 964   using simgrid::surf::NetCard;
 965   using simgrid::surf::AsCluster;
 966
 967   char *host_id = NULL;
 968   char *link_id = NULL;
 969   char *router_id = NULL;
 970
 971   XBT_DEBUG(" ");
 972   host_id = HOST_PEER(peer->id);
 973   link_id = LINK_PEER(peer->id);
 974   router_id = ROUTER_PEER(peer->id);
 975
 976   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 977   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
 978   AS.id                    = peer->id;
 979   AS.routing               = A_surfxml_AS_routing_Cluster;
 980   sg_platf_new_AS_begin(&AS);
 981
 982   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
 983
 984   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 985   s_sg_platf_host_cbarg_t host = SG_PLATF_HOST_INITIALIZER;
 986   memset(&host, 0, sizeof(host));
 987   host.initiallyOn = 1;
 988   host.id = host_id;
 989
 990   host.speed_peak = xbt_dynar_new(sizeof(double), NULL);
 991   xbt_dynar_push(host.speed_peak,&peer->speed);
 992   host.pstate = 0;
 993   //host.power_peak = peer->power;
 994   host.speed_scale = 1.0;
 995   host.speed_trace = peer->availability_trace;
 996   host.state_trace = peer->state_trace;
 997   host.core_amount = 1;
 998   sg_platf_new_host(&host);
 999   xbt_dynar_free(&host.speed_peak);
1000
1001   s_sg_platf_link_cbarg_t link = SG_PLATF_LINK_INITIALIZER;
1002   memset(&link, 0, sizeof(link));
1003   link.initiallyOn = 1;
1004   link.policy  = SURF_LINK_SHARED;
1005   link.latency = peer->lat;
1006
1007   char* link_up = bprintf("%s_UP",link_id);
1008   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1009             peer->bw_out, peer->lat);
1010   link.id = link_up;
1011   link.bandwidth = peer->bw_out;
1012   sg_platf_new_link(&link);
1013
1014   char* link_down = bprintf("%s_DOWN",link_id);
1015   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1016             peer->bw_in, peer->lat);
1017   link.id = link_down;
1018   link.bandwidth = peer->bw_in;
1019   sg_platf_new_link(&link);
1020
1021   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1022   s_sg_platf_host_link_cbarg_t host_link = SG_PLATF_HOST_LINK_INITIALIZER;
1023   memset(&host_link, 0, sizeof(host_link));
1024   host_link.id        = host_id;
1025   host_link.link_up   = link_up;
1026   host_link.link_down = link_down;
1027   sg_platf_new_netcard(&host_link);
1028
1029   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1030   s_sg_platf_router_cbarg_t router = SG_PLATF_ROUTER_INITIALIZER;
1031   memset(&router, 0, sizeof(router));
1032   router.id = router_id;
1033   router.coord = peer->coord;
1034   sg_platf_new_router(&router);
1035   static_cast<AsCluster*>(current_routing)->p_router = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1036
1037   XBT_DEBUG("</AS>");
1038   sg_platf_new_AS_end();
1039   XBT_DEBUG(" ");
1040
1041   //xbt_dynar_free(&tab_elements_num);
1042   free(router_id);
1043   free(host_id);
1044   free(link_id);
1045   free(link_up);
1046   free(link_down);
1047 }
1048
1049 // static void routing_parse_Srandom(void)
1050 // {
1051 //   double mean, std, min, max, seed;
1052 //   char *random_id = A_surfxml_random_id;
1053 //   char *random_radical = A_surfxml_random_radical;
1054 //   char *rd_name = NULL;
1055 //   char *rd_value;
1056 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1057 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1058 //   min = surf_parse_get_double(A_surfxml_random_min);
1059 //   max = surf_parse_get_double(A_surfxml_random_max);
1060 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1061
1062 //   double res = 0;
1063 //   int i = 0;
1064 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1065 //   char *tmpbuf;
1066
1067 //   xbt_dynar_t radical_elements;
1068 //   unsigned int iter;
1069 //   char *groups;
1070 //   int start, end;
1071 //   xbt_dynar_t radical_ends;
1072
1073 //   switch (A_surfxml_random_generator) {
1074 //   case AU_surfxml_random_generator:
1075 //   case A_surfxml_random_generator_NONE:
1076 //     random->generator = NONE;
1077 //     break;
1078 //   case A_surfxml_random_generator_DRAND48:
1079 //     random->generator = DRAND48;
1080 //     break;
1081 //   case A_surfxml_random_generator_RAND:
1082 //     random->generator = RAND;
1083 //     break;
1084 //   case A_surfxml_random_generator_RNGSTREAM:
1085 //     random->generator = RNGSTREAM;
1086 //     break;
1087 //   default:
1088 //     surf_parse_error("Invalid random generator");
1089 //     break;
1090 //   }
1091 //   random->seed = seed;
1092 //   random->min = min;
1093 //   random->max = max;
1094
1095 //   /* Check user stupidities */
1096 //   if (max < min)
1097 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1098 //   if (mean < min)
1099 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1100 //   if (mean > max)
1101 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1102
1103 //   /* normalize the mean and standard deviation before storing */
1104 //   random->mean = (mean - min) / (max - min);
1105 //   random->std = std / (max - min);
1106
1107 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1108 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1109 //            random->mean, random->std);
1110
1111 //   XBT_DEBUG
1112 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1113 //        random_id, random->min, random->max, random->mean, random->std,
1114 //        (int)random->generator, random->seed, random_radical);
1115
1116 //   if (!random_value)
1117 //     random_value = xbt_dict_new_homogeneous(free);
1118
1119 //   if (!strcmp(random_radical, "")) {
1120 //     res = random_generate(random);
1121 //     rd_value = bprintf("%f", res);
1122 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1123 //   } else {
1124 //     radical_elements = xbt_str_split(random_radical, ",");
1125 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1126 //       radical_ends = xbt_str_split(groups, "-");
1127 //       switch (xbt_dynar_length(radical_ends)) {
1128 //       case 1:
1129 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1130 //                    "Custom Random '%s' already exists !", random_id);
1131 //         res = random_generate(random);
1132 //         tmpbuf =
1133 //             bprintf("%s%d", random_id,
1134 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1135 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1136 //         xbt_free(tmpbuf);
1137 //         break;
1138
1139 //       case 2:
1140 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1141 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1142 //         for (i = start; i <= end; i++) {
1143 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1144 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1145 //                                                                     random_id,
1146 //                                                                     i));
1147 //           res = random_generate(random);
1148 //           tmpbuf = bprintf("%s%d", random_id, i);
1149 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1150 //           xbt_free(tmpbuf);
1151 //         }
1152 //         break;
1153 //       default:
1154 //         XBT_CRITICAL("Malformed radical");
1155 //         break;
1156 //       }
1157 //       res = random_generate(random);
1158 //       rd_name = bprintf("%s_router", random_id);
1159 //       rd_value = bprintf("%f", res);
1160 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1161
1162 //       xbt_dynar_free(&radical_ends);
1163 //     }
1164 //     free(rd_name);
1165 //     xbt_dynar_free(&radical_elements);
1166 //   }
1167 // }
1168
1169 static void check_disk_attachment()
1170 {
1171   xbt_lib_cursor_t cursor;
1172   char *key;
1173   void **data;
1174   simgrid::surf::NetCard *host_elm;
1175   xbt_lib_foreach(storage_lib, cursor, key, data) {
1176     if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
1177     simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
1178     host_elm = sg_netcard_by_name_or_null(storage->p_attach);
1179     if(!host_elm)
1180       surf_parse_error("Unable to attach storage %s: host %s doesn't exist.", storage->getName(), storage->p_attach);
1181     }
1182   }
1183 }
1184
1185 void routing_register_callbacks()
1186 {
1187   simgrid::surf::on_postparse.connect(routing_parse_postparse);
1188   simgrid::surf::on_postparse.connect(check_disk_attachment);
1189
1190   instr_routing_define_callbacks();
1191 }
1192
1193 /**
1194  * \brief Recursive function for finalize
1195  *
1196  * \param rc the source host name
1197  *
1198  * This fuction is call by "finalize". It allow to finalize the
1199  * AS or routing components. It delete all the structures.
1200  */
1201 static void finalize_rec(simgrid::surf::As *as) {
1202   xbt_dict_cursor_t cursor = NULL;
1203   char *key;
1204   AS_t elem;
1205
1206   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1207     finalize_rec(elem);
1208   }
1209
1210   delete as;;
1211 }
1212
1213 /** \brief Frees all memory allocated by the routing module */
1214 void routing_exit(void) {
1215   delete routing_platf;
1216 }
1217
1218 namespace simgrid {
1219 namespace surf {
1220
1221 RoutingPlatf::~RoutingPlatf()
1222 {
1223   xbt_dynar_free(&p_lastRoute);
1224   finalize_rec(p_root);
1225 }
1226
1227 }
1228 }
1229
1230 AS_t surf_AS_get_routing_root() {
1231   return routing_platf->p_root;
1232 }
1233
1234 const char *surf_AS_get_name(simgrid::surf::As *as) {
1235   return as->p_name;
1236 }
1237
1238 static simgrid::surf::As *surf_AS_recursive_get_by_name(
1239   simgrid::surf::As *current, const char * name)
1240 {
1241   xbt_dict_cursor_t cursor = NULL;
1242   char *key;
1243   AS_t elem;
1244   simgrid::surf::As *tmp = NULL;
1245
1246   if(!strcmp(current->p_name, name))
1247     return current;
1248
1249   xbt_dict_foreach(current->p_routingSons, cursor, key, elem) {
1250     tmp = surf_AS_recursive_get_by_name(elem, name);
1251     if(tmp != NULL ) {
1252         break;
1253     }
1254   }
1255   return tmp;
1256 }
1257
1258 simgrid::surf::As *surf_AS_get_by_name(const char * name)
1259 {
1260   simgrid::surf::As *as = surf_AS_recursive_get_by_name(routing_platf->p_root, name);
1261   if(as == NULL)
1262     XBT_WARN("Impossible to find an AS with name %s, please check your input", name);
1263   return as;
1264 }
1265
1266 xbt_dict_t surf_AS_get_routing_sons(simgrid::surf::As *as)
1267 {
1268   return as->p_routingSons;
1269 }
1270
1271 const char *surf_AS_get_model(simgrid::surf::As *as)
1272 {
1273   return as->p_modelDesc->name;
1274 }
1275
1276 xbt_dynar_t surf_AS_get_hosts(simgrid::surf::As *as)
1277 {
1278   xbt_dynar_t elms = as->p_indexNetworkElm;
1279   int count = xbt_dynar_length(elms);
1280   xbt_dynar_t res =  xbt_dynar_new(sizeof(sg_host_t), NULL);
1281   for (int index = 0; index < count; index++) {
1282      sg_netcard_t relm =
1283       xbt_dynar_get_as(elms, index, simgrid::surf::NetCard*);
1284      sg_host_t delm = simgrid::s4u::Host::by_name_or_null(relm->getName());
1285      if (delm!=NULL) {
1286        xbt_dynar_push(res, &delm);
1287      }
1288   }
1289   return res;
1290 }
1291
1292 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1293   as->getGraph(graph, nodes, edges);
1294 }