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