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[simgrid.git] / src / surf / surf_routing.cpp
1 /* Copyright (c) 2009-2011, 2013-2014. The SimGrid Team.
2  * All rights reserved.                                                     */
3
4 /* This program is free software; you can redistribute it and/or modify it
5  * under the terms of the license (GNU LGPL) which comes with this package. */
6
7 #include "surf_routing.hpp"
8 #include "surf_routing_private.hpp"
9 #include "surf_routing_cluster.hpp"
10 #include "surf_routing_cluster_torus.hpp"
11
12
13 #include "simgrid/platf_interface.h"    // platform creation API internal interface
14 #include "simgrid/sg_config.h"
15
16 #include "surf/surfxml_parse_values.h"
17
18 /**
19  * @ingroup SURF_build_api
20  * @brief A library containing all known workstations
21  */
22 xbt_lib_t host_lib;
23
24 int ROUTING_HOST_LEVEL;         //Routing level
25 int SURF_CPU_LEVEL;             //Surf cpu level
26 int SURF_WKS_LEVEL;             //Surf workstation level
27 int SIMIX_HOST_LEVEL;           //Simix host level
28 int SIMIX_STORAGE_LEVEL;        //Simix storage level
29 int MSG_HOST_LEVEL;             //Msg host level
30 int MSG_STORAGE_LEVEL;          //Msg storage level
31 int MSG_FILE_LEVEL;             //Msg file level
32 int SD_HOST_LEVEL;              //Simdag host level
33 int SD_STORAGE_LEVEL;           //Simdag storage level
34 int COORD_HOST_LEVEL=0;         //Coordinates level
35 int NS3_HOST_LEVEL;             //host node for ns3
36
37 /**
38  * @ingroup SURF_build_api
39  * @brief A library containing all known links
40  */
41 xbt_lib_t link_lib;
42 int SD_LINK_LEVEL;              //Simdag level
43 int SURF_LINK_LEVEL;            //Surf level
44 int NS3_LINK_LEVEL;             //link for ns3
45
46 xbt_lib_t as_router_lib;
47 int ROUTING_ASR_LEVEL;          //Routing level
48 int COORD_ASR_LEVEL;            //Coordinates level
49 int NS3_ASR_LEVEL;              //host node for ns3
50 int ROUTING_PROP_ASR_LEVEL;     //Where the properties are stored
51
52 static xbt_dict_t random_value = NULL;
53
54
55 /** @brief Retrieve a routing edge from its name
56  *
57  * Routing edges are either CPU/workstation and routers, whatever
58  */
59 RoutingEdgePtr sg_routing_edge_by_name_or_null(const char *name) {
60   RoutingEdgePtr net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
61   if (!net_elm)
62         net_elm = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
63   return net_elm;
64 }
65
66 /* Global vars */
67 RoutingPlatfPtr routing_platf = NULL;
68 AsPtr current_routing = NULL;
69
70 /* global parse functions */
71 extern xbt_dynar_t mount_list;
72
73 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
74
75 static void routing_parse_peer(sg_platf_peer_cbarg_t peer);     /* peer bypass */
76 // static void routing_parse_Srandom(void);        /* random bypass */
77
78 static void routing_parse_postparse(void);
79
80 /* this lines are only for replace use like index in the model table */
81 typedef enum {
82   SURF_MODEL_FULL = 0,
83   SURF_MODEL_FLOYD,
84   SURF_MODEL_DIJKSTRA,
85   SURF_MODEL_DIJKSTRACACHE,
86   SURF_MODEL_NONE,
87   SURF_MODEL_VIVALDI,
88   SURF_MODEL_CLUSTER,
89   SURF_MODEL_TORUS_CLUSTER,
90
91 } e_routing_types;
92
93 struct s_model_type routing_models[] = {
94   {"Full",
95    "Full routing data (fast, large memory requirements, fully expressive)",
96    model_full_create, model_full_end},
97   {"Floyd",
98    "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
99    model_floyd_create, model_floyd_end},
100   {"Dijkstra",
101    "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
102    model_dijkstra_create, model_dijkstra_both_end},
103   {"DijkstraCache",
104    "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
105    model_dijkstracache_create, model_dijkstra_both_end},
106   {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
107    model_none_create,  NULL},
108   {"Vivaldi", "Vivaldi routing",
109    model_vivaldi_create, NULL},
110   {"Cluster", "Cluster routing",
111    model_cluster_create, NULL},
112    {"Torus_Cluster", "Torus Cluster routing",
113     model_torus_cluster_create, NULL},
114   {NULL, NULL, NULL, NULL}
115 };
116
117 /**
118  * \brief Add a "host_link" to the network element list
119  */
120 static void parse_S_host_link(sg_platf_host_link_cbarg_t host)
121 {
122   RoutingEdgePtr info = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL));
123   xbt_assert(info, "Host '%s' not found!", host->id);
124   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER] ||
125       current_routing->p_modelDesc == &routing_models[SURF_MODEL_VIVALDI],
126       "You have to be in model Cluster to use tag host_link!");
127
128   s_surf_parsing_link_up_down_t link_up_down;
129   link_up_down.link_up = xbt_lib_get_or_null(link_lib, host->link_up, SURF_LINK_LEVEL);
130   link_up_down.link_down = xbt_lib_get_or_null(link_lib, host->link_down, SURF_LINK_LEVEL);
131
132   xbt_assert(link_up_down.link_up, "Link '%s' not found!",host->link_up);
133   xbt_assert(link_up_down.link_down, "Link '%s' not found!",host->link_down);
134
135   if(!current_routing->p_linkUpDownList)
136     current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
137
138   // If dynar is is greater than edge id and if the host_link is already defined
139   if((int)xbt_dynar_length(current_routing->p_linkUpDownList) > info->getId() &&
140       xbt_dynar_get_as(current_routing->p_linkUpDownList, info->getId(), void*))
141     xbt_die("Host_link for '%s' is already defined!",host->id);
142
143   XBT_DEBUG("Push Host_link for host '%s' to position %d", info->getName(), info->getId());
144   xbt_dynar_set_as(current_routing->p_linkUpDownList, info->getId(), s_surf_parsing_link_up_down_t, link_up_down);
145 }
146
147 /**
148  * \brief Add a "host" to the network element list
149  */
150 static void parse_S_host(sg_platf_host_cbarg_t host)
151 {
152   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
153     current_routing->p_hierarchy = SURF_ROUTING_BASE;
154   xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
155              "Reading a host, processing unit \"%s\" already exists", host->id);
156
157   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(host->id),
158                                                     -1,
159                                                     SURF_NETWORK_ELEMENT_HOST,
160                                                     current_routing);
161   info->setId(current_routing->parsePU(info));
162   xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
163   XBT_DEBUG("Having set name '%s' id '%d'", host->id, info->getId());
164
165   if(mount_list){
166     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
167     mount_list = NULL;
168   }
169
170   if (host->coord && strcmp(host->coord, "")) {
171     unsigned int cursor;
172     char*str;
173
174     if (!COORD_HOST_LEVEL)
175       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
176     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
177     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
178     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
179     xbt_dynar_foreach(ctn_str,cursor, str) {
180       double val = atof(str);
181       xbt_dynar_push(ctn,&val);
182     }
183     xbt_dynar_shrink(ctn, 0);
184     xbt_dynar_free(&ctn_str);
185     xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
186     XBT_DEBUG("Having set host coordinates for '%s'",host->id);
187   }
188 }
189
190 /**
191  * \brief Add a "router" to the network element list
192  */
193 static void parse_S_router(sg_platf_router_cbarg_t router)
194 {
195   if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
196     current_routing->p_hierarchy = SURF_ROUTING_BASE;
197   xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
198              "Reading a router, processing unit \"%s\" already exists",
199              router->id);
200
201   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(router->id),
202                                             -1,
203                                             SURF_NETWORK_ELEMENT_ROUTER,
204                                             current_routing);
205   info->setId(current_routing->parsePU(info));
206   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
207   XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->getId());
208
209   if (router->coord && strcmp(router->coord, "")) {
210     unsigned int cursor;
211     char*str;
212
213     if (!COORD_ASR_LEVEL)
214       xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
215     /* Pre-parse the host coordinates */
216     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
217     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
218     xbt_dynar_foreach(ctn_str,cursor, str) {
219       double val = atof(str);
220       xbt_dynar_push(ctn,&val);
221     }
222     xbt_dynar_shrink(ctn, 0);
223     xbt_dynar_free(&ctn_str);
224     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
225     XBT_DEBUG("Having set router coordinates for '%s'",router->id);
226   }
227 }
228
229 /**
230  * \brief Store the route by calling the set_route function of the current routing component
231  */
232 static void parse_E_route(sg_platf_route_cbarg_t route)
233 {
234   /*FIXME:REMOVE:xbt_assert(current_routing->parse_route,
235              "no defined method \"set_route\" in \"%s\"",
236              current_routing->name);*/
237
238   current_routing->parseRoute(route);
239 }
240
241 /**
242  * \brief Store the ASroute by calling the set_ASroute function of the current routing component
243  */
244 static void parse_E_ASroute(sg_platf_route_cbarg_t ASroute)
245 {
246   /*FIXME:REMOVE:xbt_assert(current_routing->parse_ASroute,
247              "no defined method \"set_ASroute\" in \"%s\"",
248              current_routing->name);*/
249   current_routing->parseASroute(ASroute);
250 }
251
252 /**
253  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
254  */
255 static void parse_E_bypassRoute(sg_platf_route_cbarg_t route)
256 {
257   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
258              "Bypassing mechanism not implemented by routing '%s'",
259              current_routing->name);*/
260
261   current_routing->parseBypassroute(route);
262 }
263
264 /**
265  * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
266  */
267 static void parse_E_bypassASroute(sg_platf_route_cbarg_t ASroute)
268 {
269   /*FIXME:REMOVE:xbt_assert(current_routing->parse_bypassroute,
270              "Bypassing mechanism not implemented by routing '%s'",
271              current_routing->name);*/
272   current_routing->parseBypassroute(ASroute);
273 }
274
275 static void routing_parse_trace(sg_platf_trace_cbarg_t trace)
276 {
277   tmgr_trace_t tmgr_trace;
278   if (!trace->file || strcmp(trace->file, "") != 0) {
279     tmgr_trace = tmgr_trace_new_from_file(trace->file);
280   } else if (strcmp(trace->pc_data, "") == 0) {
281     tmgr_trace = NULL;
282   } else {
283     tmgr_trace =
284           tmgr_trace_new_from_string(trace->id, trace->pc_data,
285                                      trace->periodicity);
286   }
287   xbt_dict_set(traces_set_list, trace->id, (void *) tmgr_trace, NULL);
288 }
289
290 static void routing_parse_trace_connect(sg_platf_trace_connect_cbarg_t trace_connect)
291 {
292   xbt_assert(xbt_dict_get_or_null
293               (traces_set_list, trace_connect->trace),
294               "Cannot connect trace %s to %s: trace unknown",
295               trace_connect->trace,
296               trace_connect->element);
297
298   switch (trace_connect->kind) {
299   case SURF_TRACE_CONNECT_KIND_HOST_AVAIL:
300     xbt_dict_set(trace_connect_list_host_avail,
301         trace_connect->trace,
302         xbt_strdup(trace_connect->element), NULL);
303     break;
304   case SURF_TRACE_CONNECT_KIND_POWER:
305     xbt_dict_set(trace_connect_list_power, trace_connect->trace,
306         xbt_strdup(trace_connect->element), NULL);
307     break;
308   case SURF_TRACE_CONNECT_KIND_LINK_AVAIL:
309     xbt_dict_set(trace_connect_list_link_avail,
310         trace_connect->trace,
311         xbt_strdup(trace_connect->element), NULL);
312     break;
313   case SURF_TRACE_CONNECT_KIND_BANDWIDTH:
314     xbt_dict_set(trace_connect_list_bandwidth,
315         trace_connect->trace,
316         xbt_strdup(trace_connect->element), NULL);
317     break;
318   case SURF_TRACE_CONNECT_KIND_LATENCY:
319     xbt_dict_set(trace_connect_list_latency, trace_connect->trace,
320         xbt_strdup(trace_connect->element), NULL);
321     break;
322   default:
323     xbt_die("Cannot connect trace %s to %s: kind of trace unknown",
324         trace_connect->trace, trace_connect->element);
325     break;
326   }
327 }
328
329 /**
330  * \brief Make a new routing component to the platform
331  *
332  * Add a new autonomous system to the platform. Any elements (such as host,
333  * router or sub-AS) added after this call and before the corresponding call
334  * to sg_platf_new_AS_close() will be added to this AS.
335  *
336  * Once this function was called, the configuration concerning the used
337  * models cannot be changed anymore.
338  *
339  * @param AS_id name of this autonomous system. Must be unique in the platform
340  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
341  */
342 void routing_AS_begin(sg_platf_AS_cbarg_t AS)
343 {
344   XBT_DEBUG("routing_AS_begin");
345   routing_model_description_t model = NULL;
346
347   xbt_assert(!xbt_lib_get_or_null
348              (as_router_lib, AS->id, ROUTING_ASR_LEVEL),
349              "The AS \"%s\" already exists", AS->id);
350
351   _sg_cfg_init_status = 2; /* horrible hack: direct access to the global
352                             * controlling the level of configuration to prevent
353                             * any further config */
354
355   /* search the routing model */
356   switch(AS->routing){
357     case A_surfxml_AS_routing_Cluster:         model = &routing_models[SURF_MODEL_CLUSTER];break;
358     case A_surfxml_AS_routing_Cluster___torus: model = &routing_models[SURF_MODEL_TORUS_CLUSTER];break;
359     case A_surfxml_AS_routing_Dijkstra:        model = &routing_models[SURF_MODEL_DIJKSTRA];break;
360     case A_surfxml_AS_routing_DijkstraCache:   model = &routing_models[SURF_MODEL_DIJKSTRACACHE];break;
361     case A_surfxml_AS_routing_Floyd:           model = &routing_models[SURF_MODEL_FLOYD];break;
362     case A_surfxml_AS_routing_Full:            model = &routing_models[SURF_MODEL_FULL];break;
363     case A_surfxml_AS_routing_None:            model = &routing_models[SURF_MODEL_NONE];break;
364     case A_surfxml_AS_routing_Vivaldi:         model = &routing_models[SURF_MODEL_VIVALDI];break;
365     default: xbt_die("Not a valid model!!!");
366     break;
367   }
368
369   /* make a new routing component */
370   AsPtr new_as = model->create();
371
372   new_as->p_modelDesc = model;
373   new_as->p_hierarchy = SURF_ROUTING_NULL;
374   new_as->p_name = xbt_strdup(AS->id);
375
376   RoutingEdgePtr info = new RoutingEdgeImpl(xbt_strdup(new_as->p_name),
377                                             -1,
378                                             SURF_NETWORK_ELEMENT_AS,
379                                             current_routing);
380   if (current_routing == NULL && routing_platf->p_root == NULL) {
381
382     /* it is the first one */
383     new_as->p_routingFather = NULL;
384     routing_platf->p_root = new_as;
385     info->setId(-1);
386   } else if (current_routing != NULL && routing_platf->p_root != NULL) {
387
388     xbt_assert(!xbt_dict_get_or_null
389                (current_routing->p_routingSons, AS->id),
390                "The AS \"%s\" already exists", AS->id);
391     /* it is a part of the tree */
392     new_as->p_routingFather = current_routing;
393     /* set the father behavior */
394     if (current_routing->p_hierarchy == SURF_ROUTING_NULL)
395       current_routing->p_hierarchy = SURF_ROUTING_RECURSIVE;
396     /* add to the sons dictionary */
397     xbt_dict_set(current_routing->p_routingSons, AS->id,
398                  (void *) new_as, NULL);
399     /* add to the father element list */
400     info->setId(current_routing->parseAS(info));
401   } else {
402     THROWF(arg_error, 0, "All defined components must be belong to a AS");
403   }
404
405   xbt_lib_set(as_router_lib, info->getName(), ROUTING_ASR_LEVEL,
406               (void *) info);
407   XBT_DEBUG("Having set name '%s' id '%d'", new_as->p_name, info->getId());
408
409   /* set the new current component of the tree */
410   current_routing = new_as;
411   current_routing->p_netElem = info;
412
413 }
414
415 /**
416  * \brief Specify that the current description of AS is finished
417  *
418  * Once you've declared all the content of your AS, you have to close
419  * it with this call. Your AS is not usable until you call this function.
420  *
421  * @fixme: this call is not as robust as wanted: bad things WILL happen
422  * if you call it twice for the same AS, or if you forget calling it, or
423  * even if you add stuff to a closed AS
424  *
425  */
426 void routing_AS_end(sg_platf_AS_cbarg_t /*AS*/)
427 {
428
429   if (current_routing == NULL) {
430     THROWF(arg_error, 0, "Close an AS, but none was under construction");
431   } else {
432     if (current_routing->p_modelDesc->end)
433       current_routing->p_modelDesc->end(current_routing);
434     current_routing = current_routing->p_routingFather;
435   }
436 }
437
438 /* Aux Business methods */
439
440 /**
441  * \brief Get the AS father and the first elements of the chain
442  *
443  * \param src the source host name
444  * \param dst the destination host name
445  *
446  * Get the common father of the to processing units, and the first different
447  * father in the chain
448  */
449 static void elements_father(sg_routing_edge_t src, sg_routing_edge_t dst,
450                             AS_t * res_father,
451                             AS_t * res_src,
452                             AS_t * res_dst)
453 {
454   xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
455 #define ELEMENTS_FATHER_MAXDEPTH 16     /* increase if it is not enough */
456   AsPtr src_as, dst_as;
457   AsPtr path_src[ELEMENTS_FATHER_MAXDEPTH];
458   AsPtr path_dst[ELEMENTS_FATHER_MAXDEPTH];
459   int index_src = 0;
460   int index_dst = 0;
461   AsPtr current;
462   AsPtr current_src;
463   AsPtr current_dst;
464   AsPtr father;
465
466   /* (1) find the as where the src and dst are located */
467   sg_routing_edge_t src_data = src;
468   sg_routing_edge_t dst_data = dst;
469   src_as = src_data->getRcComponent();
470   dst_as = dst_data->getRcComponent();
471 #ifndef NDEBUG
472   char* src_name = src_data->getName();
473   char* dst_name = dst_data->getName();
474 #endif
475
476   xbt_assert(src_as && dst_as,
477              "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
478
479   /* (2) find the path to the root routing component */
480   for (current = src_as; current != NULL; current = current->p_routingFather) {
481     if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
482       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
483     path_src[index_src++] = current;
484   }
485   for (current = dst_as; current != NULL; current = current->p_routingFather) {
486     if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
487       xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
488     path_dst[index_dst++] = current;
489   }
490
491   /* (3) find the common father */
492   do {
493     current_src = path_src[--index_src];
494     current_dst = path_dst[--index_dst];
495   } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
496
497   /* (4) they are not in the same routing component, make the path */
498   if (current_src == current_dst)
499     father = current_src;
500   else
501     father = path_src[index_src + 1];
502
503   /* (5) result generation */
504   *res_father = father;         /* first the common father of src and dst */
505   *res_src = current_src;       /* second the first different father of src */
506   *res_dst = current_dst;       /* three  the first different father of dst */
507
508 #undef ELEMENTS_FATHER_MAXDEPTH
509 }
510
511 /* Global Business methods */
512
513 /**
514  * \brief Recursive function for get_route_latency
515  *
516  * \param src the source host name
517  * \param dst the destination host name
518  * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
519  * \param *latency the latency, if needed
520  *
521  * This function is called by "get_route" and "get_latency". It allows to walk
522  * recursively through the ASes tree.
523  */
524 static void _get_route_and_latency(RoutingEdgePtr src, RoutingEdgePtr dst,
525                                    xbt_dynar_t * links, double *latency)
526 {
527   s_sg_platf_route_cbarg_t route;
528   memset(&route,0,sizeof(route));
529
530   xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
531   XBT_DEBUG("Solve route/latency  \"%s\" to \"%s\"", src->getName(), dst->getName());
532
533   /* Find how src and dst are interconnected */
534   AsPtr common_father, src_father, dst_father;
535   elements_father(src, dst, &common_father, &src_father, &dst_father);
536   XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
537       common_father->p_name, src_father->p_name, dst_father->p_name);
538
539   /* Check whether a direct bypass is defined */
540   sg_platf_route_cbarg_t e_route_bypass = NULL;
541   //FIXME:REMOVE:if (common_father->get_bypass_route)
542
543   e_route_bypass = common_father->getBypassRoute(src, dst, latency);
544
545   /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
546   if (e_route_bypass) {
547     xbt_dynar_merge(links, &e_route_bypass->link_list);
548     generic_free_route(e_route_bypass);
549     return;
550   }
551
552   /* If src and dst are in the same AS, life is good */
553   if (src_father == dst_father) {       /* SURF_ROUTING_BASE */
554     route.link_list = *links;
555     common_father->getRouteAndLatency(src, dst, &route, latency);
556     // if vivaldi latency+=vivaldi(src,dst)
557     return;
558   }
559
560   /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
561
562   route.link_list = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
563   // Find the net_card corresponding to father
564   RoutingEdgePtr src_father_net_elm = src_father->p_netElem;
565   RoutingEdgePtr dst_father_net_elm = dst_father->p_netElem;
566
567   common_father->getRouteAndLatency(src_father_net_elm, dst_father_net_elm,
568                                     &route, latency);
569
570   xbt_assert((route.gw_src != NULL) && (route.gw_dst != NULL),
571       "bad gateways for route from \"%s\" to \"%s\"", src->getName(), dst->getName());
572
573   sg_routing_edge_t src_gateway_net_elm = route.gw_src;
574   sg_routing_edge_t dst_gateway_net_elm = route.gw_dst;
575
576   /* If source gateway is not our source, we have to recursively find our way up to this point */
577   if (src != src_gateway_net_elm)
578     _get_route_and_latency(src, src_gateway_net_elm, links, latency);
579   xbt_dynar_merge(links, &route.link_list);
580
581   /* If dest gateway is not our destination, we have to recursively find our way from this point */
582   if (dst_gateway_net_elm != dst)
583     _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
584
585   // if vivaldi latency+=vivaldi(src_gateway,dst_gateway)
586 }
587
588 AS_t surf_platf_get_root(routing_platf_t platf){
589   return platf->p_root;
590 }
591
592 e_surf_network_element_type_t surf_routing_edge_get_rc_type(sg_routing_edge_t edge){
593   return edge->getRcType();
594 }
595
596
597 /**
598  * \brief Find a route between hosts
599  *
600  * \param src the network_element_t for src host
601  * \param dst the network_element_t for dst host
602  * \param route where to store the list of links.
603  *              If *route=NULL, create a short lived dynar. Else, fill the provided dynar
604  * \param latency where to store the latency experienced on the path (or NULL if not interested)
605  *                It is the caller responsability to initialize latency to 0 (we add to provided route)
606  * \pre route!=NULL
607  *
608  * walk through the routing components tree and find a route between hosts
609  * by calling the differents "get_route" functions in each routing component.
610  */
611 void RoutingPlatf::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst,
612                                    xbt_dynar_t* route, double *latency)
613 {
614   XBT_DEBUG("routing_get_route_and_latency from %s to %s", src->getName(), dst->getName());
615   if (!*route) {
616     xbt_dynar_reset(routing_platf->p_lastRoute);
617     *route = routing_platf->p_lastRoute;
618   }
619
620   _get_route_and_latency(src, dst, route, latency);
621
622   xbt_assert(!latency || *latency >= 0.0,
623              "negative latency on route between \"%s\" and \"%s\"", src->getName(), dst->getName());
624 }
625
626 xbt_dynar_t RoutingPlatf::getOneLinkRoutes(){
627   return recursiveGetOneLinkRoutes(p_root);
628 }
629
630 xbt_dynar_t RoutingPlatf::recursiveGetOneLinkRoutes(AsPtr rc)
631 {
632   xbt_dynar_t ret = xbt_dynar_new(sizeof(OnelinkPtr), xbt_free);
633
634   //adding my one link routes
635   xbt_dynar_t onelink_mine = rc->getOneLinkRoutes();
636   if (onelink_mine)
637     xbt_dynar_merge(&ret,&onelink_mine);
638
639   //recursing
640   char *key;
641   xbt_dict_cursor_t cursor = NULL;
642   AS_t rc_child;
643   xbt_dict_foreach(rc->p_routingSons, cursor, key, rc_child) {
644     xbt_dynar_t onelink_child = recursiveGetOneLinkRoutes(rc_child);
645     if (onelink_child)
646       xbt_dynar_merge(&ret,&onelink_child);
647   }
648   return ret;
649 }
650
651 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
652 {
653   RoutingEdgePtr rc = sg_routing_edge_by_name_or_null(name);
654   if (rc)
655     return rc->getRcType();
656
657   return SURF_NETWORK_ELEMENT_NULL;
658 }
659
660 /**
661  * \brief Generic method: create the global routing schema
662  *
663  * Make a global routing structure and set all the parsing functions.
664  */
665 void routing_model_create( void *loopback)
666 {
667   /* config the uniq global routing */
668   routing_platf = new RoutingPlatf();
669   routing_platf->p_root = NULL;
670   routing_platf->p_loopback = loopback;
671   routing_platf->p_lastRoute = xbt_dynar_new(sizeof(sg_routing_link_t),NULL);
672   /* no current routing at moment */
673   current_routing = NULL;
674 }
675
676
677 /* ************************************************** */
678 /* ********** PATERN FOR NEW ROUTING **************** */
679
680 /* The minimal configuration of a new routing model need the next functions,
681  * also you need to set at the start of the file, the new model in the model
682  * list. Remember keep the null ending of the list.
683  */
684 /*** Routing model structure ***/
685 // typedef struct {
686 //   s_routing_component_t generic_routing;
687 //   /* things that your routing model need */
688 // } s_routing_component_NEW_t,*routing_component_NEW_t;
689
690 /*** Parse routing model functions ***/
691 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
692 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
693 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
694 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
695 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
696
697 /*** Business methods ***/
698 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
699 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
700 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
701
702 /*** Creation routing model functions ***/
703 // static void* model_NEW_create(void) {
704 //   routing_component_NEW_t new_component =  xbt_new0(s_routing_component_NEW_t,1);
705 //   new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
706 //   new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
707 //   new_component->generic_routing.set_route = model_NEW_set_route;
708 //   new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
709 //   new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
710 //   new_component->generic_routing.get_route = NEW_get_route;
711 //   new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
712 //   new_component->generic_routing.finalize = NEW_finalize;
713 //   /* initialization of internal structures */
714 //   return new_component;
715 // } /* mandatory */
716 // static void  model_NEW_load(void) {}   /* mandatory */
717 // static void  model_NEW_unload(void) {} /* mandatory */
718 // static void  model_NEW_end(void) {}    /* mandatory */
719
720 /* ************************************************************************** */
721 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
722
723 void routing_cluster_add_backbone(void* bb) {
724   xbt_assert(current_routing->p_modelDesc == &routing_models[SURF_MODEL_CLUSTER],
725         "You have to be in model Cluster to use tag backbone!");
726   xbt_assert(!surf_as_cluster_get_backbone(current_routing), "The backbone link is already defined!");
727   surf_as_cluster_set_backbone(current_routing, bb);
728   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->p_name);
729 }
730
731 static void routing_parse_cabinet(sg_platf_cabinet_cbarg_t cabinet)
732 {
733   int start, end, i;
734   char *groups , *host_id , *link_id = NULL;
735   unsigned int iter;
736   xbt_dynar_t radical_elements;
737   xbt_dynar_t radical_ends;
738
739   //Make all hosts
740   radical_elements = xbt_str_split(cabinet->radical, ",");
741   xbt_dynar_foreach(radical_elements, iter, groups) {
742
743     radical_ends = xbt_str_split(groups, "-");
744     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
745
746     switch (xbt_dynar_length(radical_ends)) {
747     case 1:
748       end = start;
749       break;
750     case 2:
751       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
752       break;
753     default:
754       surf_parse_error("Malformed radical");
755       break;
756     }
757     s_sg_platf_host_cbarg_t host;
758     memset(&host, 0, sizeof(host));
759     host.initial_state = SURF_RESOURCE_ON;
760     host.pstate = 0;
761     host.power_scale = 1.0;
762     host.core_amount = 1;
763
764     s_sg_platf_link_cbarg_t link;
765     memset(&link, 0, sizeof(link));
766     link.state = SURF_RESOURCE_ON;
767     link.policy = SURF_LINK_FULLDUPLEX;
768     link.latency = cabinet->lat;
769     link.bandwidth = cabinet->bw;
770
771     s_sg_platf_host_link_cbarg_t host_link;
772     memset(&host_link, 0, sizeof(host_link));
773
774     for (i = start; i <= end; i++) {
775       host_id = bprintf("%s%d%s",cabinet->prefix,i,cabinet->suffix);
776       link_id = bprintf("link_%s%d%s",cabinet->prefix,i,cabinet->suffix);
777       host.id = host_id;
778       link.id = link_id;
779       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
780       xbt_dynar_push(power_state_list,&cabinet->power);
781       host.power_peak = power_state_list;
782       sg_platf_new_host(&host);
783       sg_platf_new_link(&link);
784
785       char* link_up = bprintf("%s_UP",link_id);
786       char* link_down = bprintf("%s_DOWN",link_id);
787       host_link.id = host_id;
788       host_link.link_up = link_up;
789       host_link.link_down= link_down;
790       sg_platf_new_host_link(&host_link);
791
792       free(host_id);
793       free(link_id);
794       free(link_up);
795       free(link_down);
796     }
797
798     xbt_dynar_free(&radical_ends);
799   }
800   xbt_dynar_free(&radical_elements);
801 }
802
803 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
804 {
805   char *host_id, *groups, *link_id = NULL;
806   xbt_dict_t patterns = NULL;
807   int rankId=0;
808
809   s_sg_platf_host_cbarg_t host;
810   s_sg_platf_link_cbarg_t link;
811
812   unsigned int iter;
813   int start, end, i;
814   xbt_dynar_t radical_elements;
815   xbt_dynar_t radical_ends;
816
817   if ((cluster->availability_trace && strcmp(cluster->availability_trace, ""))
818       || (cluster->state_trace && strcmp(cluster->state_trace, ""))) {
819     patterns = xbt_dict_new_homogeneous(xbt_free_f);
820     xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
821     xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
822     xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
823   }
824
825   /* parse the topology attribute. If we are not in a flat cluster,
826    * switch to the right mode and initialize the routing with
827    * the parameters in topo_parameters attribute
828    */
829   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
830   AS.id = cluster->id;
831
832   if(cluster->topology == SURF_CLUSTER_TORUS){
833     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Torus_Cluster\">", cluster->id);
834     AS.routing = A_surfxml_AS_routing_Cluster___torus;
835     sg_platf_new_AS_begin(&AS);
836     ((AsClusterTorusPtr)current_routing)->parse_specific_arguments(cluster);
837   }else{
838     XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
839     AS.routing = A_surfxml_AS_routing_Cluster;
840     sg_platf_new_AS_begin(&AS);
841   }
842
843   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
844       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
845       ((AsClusterPtr)current_routing)->p_has_loopback=1;
846   }
847
848   if(cluster->limiter_link!=0){
849       ((AsClusterPtr)current_routing)->p_nb_links_per_node++;
850       ((AsClusterPtr)current_routing)->p_has_limiter=1;
851   }
852
853
854
855   current_routing->p_linkUpDownList
856             = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
857
858   //Make all hosts
859   radical_elements = xbt_str_split(cluster->radical, ",");
860   xbt_dynar_foreach(radical_elements, iter, groups) {
861
862     radical_ends = xbt_str_split(groups, "-");
863     start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
864
865     switch (xbt_dynar_length(radical_ends)) {
866     case 1:
867       end = start;
868       break;
869     case 2:
870       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
871       break;
872     default:
873       surf_parse_error("Malformed radical");
874       break;
875     }
876     for (i = start; i <= end; i++) {
877       host_id =
878           bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
879       link_id = bprintf("%s_link_%d", cluster->id, i);
880
881       XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
882
883       memset(&host, 0, sizeof(host));
884       host.id = host_id;
885       if (cluster->availability_trace && strcmp(cluster->availability_trace, "")) {
886         xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
887         char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
888         XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
889         host.power_trace = tmgr_trace_new_from_file(avail_file);
890         xbt_free(avail_file);
891       } else {
892         XBT_DEBUG("\tavailability_file=\"\"");
893       }
894
895       if (cluster->state_trace && strcmp(cluster->state_trace, "")) {
896         char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
897         XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
898         host.state_trace = tmgr_trace_new_from_file(avail_file);
899         xbt_free(avail_file);
900       } else {
901         XBT_DEBUG("\tstate_file=\"\"");
902       }
903
904       xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
905       xbt_dynar_push(power_state_list,&cluster->power);
906       host.power_peak = power_state_list;
907       host.pstate = 0;
908
909       //host.power_peak = cluster->power;
910       host.power_scale = 1.0;
911       host.core_amount = cluster->core_amount;
912       host.initial_state = SURF_RESOURCE_ON;
913       host.coord = "";
914       sg_platf_new_host(&host);
915       XBT_DEBUG("</host>");
916
917       XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
918                 cluster->bw, cluster->lat);
919
920
921       s_surf_parsing_link_up_down_t info_lim, info_loop;
922       // All links are saved in a matrix;
923       // every row describes a single node; every node
924       // may have multiple links.
925       // the first column may store a link from x to x if p_has_loopback is set
926       // the second column may store a limiter link if p_has_limiter is set
927       // other columns are to store one or more link for the node
928
929       //add a loopback link
930       if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
931         char *tmp_link = bprintf("%s_loopback", link_id);
932         XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
933                 cluster->limiter_link);
934
935
936         memset(&link, 0, sizeof(link));
937         link.id = tmp_link;
938         link.bandwidth = cluster->loopback_bw;
939         link.latency = cluster->loopback_lat;
940         link.state = SURF_RESOURCE_ON;
941         link.policy = SURF_LINK_FATPIPE;
942         sg_platf_new_link(&link);
943         info_loop.link_up =
944             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
945         info_loop.link_down = info_loop.link_up;
946         free(tmp_link);
947         xbt_dynar_set(current_routing->p_linkUpDownList, rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node, &info_loop);
948       }
949
950       //add a limiter link (shared link to account for maximal bandwidth of the node)
951       if(cluster->limiter_link!=0){
952         char *tmp_link = bprintf("%s_limiter", link_id);
953         XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link,
954                 cluster->limiter_link);
955
956
957         memset(&link, 0, sizeof(link));
958         link.id = tmp_link;
959         link.bandwidth = cluster->limiter_link;
960         link.latency = 0;
961         link.state = SURF_RESOURCE_ON;
962         link.policy = SURF_LINK_SHARED;
963         sg_platf_new_link(&link);
964         info_lim.link_up =
965             xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
966         info_lim.link_down = info_lim.link_up;
967         free(tmp_link);
968         xbt_dynar_set(current_routing->p_linkUpDownList,
969             rankId*((AsClusterPtr)current_routing)->p_nb_links_per_node + ((AsClusterPtr)current_routing)->p_has_loopback ,
970             &info_lim);
971
972       }
973
974
975       //call the cluster function that adds the others links
976
977       ((AsClusterPtr)current_routing)->create_links_for_node(cluster, i, rankId, rankId*
978           ((AsClusterPtr)current_routing)->p_nb_links_per_node
979           + ((AsClusterPtr)current_routing)->p_has_loopback
980           + ((AsClusterPtr)current_routing)->p_has_limiter );
981
982       xbt_free(link_id);
983       xbt_free(host_id);
984       rankId++;
985     }
986
987     xbt_dynar_free(&radical_ends);
988   }
989   xbt_dynar_free(&radical_elements);
990
991   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
992   // and it's very useful to connect clusters together
993   XBT_DEBUG(" ");
994   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
995   char *newid = NULL;
996   s_sg_platf_router_cbarg_t router;
997   memset(&router, 0, sizeof(router));
998   router.id = cluster->router_id;
999   router.coord = "";
1000   if (!router.id || !strcmp(router.id, ""))
1001     router.id = newid =
1002         bprintf("%s%s_router%s", cluster->prefix, cluster->id,
1003                 cluster->suffix);
1004   sg_platf_new_router(&router);
1005   ((AsClusterPtr)current_routing)->p_router = (RoutingEdgePtr) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
1006   free(newid);
1007
1008   //Make the backbone
1009   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
1010     char *link_backbone = bprintf("%s_backbone", cluster->id);
1011     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
1012               cluster->bb_bw, cluster->bb_lat);
1013
1014     memset(&link, 0, sizeof(link));
1015     link.id = link_backbone;
1016     link.bandwidth = cluster->bb_bw;
1017     link.latency = cluster->bb_lat;
1018     link.state = SURF_RESOURCE_ON;
1019     link.policy = cluster->bb_sharing_policy;
1020
1021     sg_platf_new_link(&link);
1022
1023     routing_cluster_add_backbone(xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
1024
1025     free(link_backbone);
1026   }
1027
1028   XBT_DEBUG("</AS>");
1029   sg_platf_new_AS_end();
1030   XBT_DEBUG(" ");
1031   xbt_dict_free(&patterns); // no op if it were never set
1032 }
1033
1034 static void routing_parse_postparse(void) {
1035   xbt_dict_free(&random_value);
1036 }
1037
1038 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
1039 {
1040   char *host_id = NULL;
1041   char *link_id = NULL;
1042   char *router_id = NULL;
1043
1044   XBT_DEBUG(" ");
1045   host_id = HOST_PEER(peer->id);
1046   link_id = LINK_PEER(peer->id);
1047   router_id = ROUTER_PEER(peer->id);
1048
1049   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
1050   s_sg_platf_AS_cbarg_t AS = SG_PLATF_AS_INITIALIZER;
1051   AS.id = peer->id;
1052   AS.routing = A_surfxml_AS_routing_Cluster;
1053   sg_platf_new_AS_begin(&AS);
1054
1055   current_routing->p_linkUpDownList = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
1056
1057   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
1058   s_sg_platf_host_cbarg_t host;
1059   memset(&host, 0, sizeof(host));
1060   host.initial_state = SURF_RESOURCE_ON;
1061   host.id = host_id;
1062
1063   xbt_dynar_t power_state_list = xbt_dynar_new(sizeof(double), NULL);
1064   xbt_dynar_push(power_state_list,&peer->power);
1065   host.power_peak = power_state_list;
1066   host.pstate = 0;
1067   //host.power_peak = peer->power;
1068   host.power_scale = 1.0;
1069   host.power_trace = peer->availability_trace;
1070   host.state_trace = peer->state_trace;
1071   host.core_amount = 1;
1072   sg_platf_new_host(&host);
1073
1074   s_sg_platf_link_cbarg_t link;
1075   memset(&link, 0, sizeof(link));
1076   link.state = SURF_RESOURCE_ON;
1077   link.policy = SURF_LINK_SHARED;
1078   link.latency = peer->lat;
1079
1080   char* link_up = bprintf("%s_UP",link_id);
1081   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up,
1082             peer->bw_out, peer->lat);
1083   link.id = link_up;
1084   link.bandwidth = peer->bw_out;
1085   sg_platf_new_link(&link);
1086
1087   char* link_down = bprintf("%s_DOWN",link_id);
1088   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down,
1089             peer->bw_in, peer->lat);
1090   link.id = link_down;
1091   link.bandwidth = peer->bw_in;
1092   sg_platf_new_link(&link);
1093
1094   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
1095   s_sg_platf_host_link_cbarg_t host_link;
1096   memset(&host_link, 0, sizeof(host_link));
1097   host_link.id = host_id;
1098   host_link.link_up = link_up;
1099   host_link.link_down= link_down;
1100   sg_platf_new_host_link(&host_link);
1101
1102   XBT_DEBUG("<router id=\"%s\"/>", router_id);
1103   s_sg_platf_router_cbarg_t router;
1104   memset(&router, 0, sizeof(router));
1105   router.id = router_id;
1106   router.coord = peer->coord;
1107   sg_platf_new_router(&router);
1108   static_cast<AsClusterPtr>(current_routing)->p_router = static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
1109
1110   XBT_DEBUG("</AS>");
1111   sg_platf_new_AS_end();
1112   XBT_DEBUG(" ");
1113
1114   //xbt_dynar_free(&tab_elements_num);
1115   free(router_id);
1116   free(host_id);
1117   free(link_id);
1118   free(link_up);
1119   free(link_down);
1120 }
1121
1122 // static void routing_parse_Srandom(void)
1123 // {
1124 //   double mean, std, min, max, seed;
1125 //   char *random_id = A_surfxml_random_id;
1126 //   char *random_radical = A_surfxml_random_radical;
1127 //   char *rd_name = NULL;
1128 //   char *rd_value;
1129 //   mean = surf_parse_get_double(A_surfxml_random_mean);
1130 //   std = surf_parse_get_double(A_surfxml_random_std___deviation);
1131 //   min = surf_parse_get_double(A_surfxml_random_min);
1132 //   max = surf_parse_get_double(A_surfxml_random_max);
1133 //   seed = surf_parse_get_double(A_surfxml_random_seed);
1134
1135 //   double res = 0;
1136 //   int i = 0;
1137 //   random_data_t random = xbt_new0(s_random_data_t, 1);
1138 //   char *tmpbuf;
1139
1140 //   xbt_dynar_t radical_elements;
1141 //   unsigned int iter;
1142 //   char *groups;
1143 //   int start, end;
1144 //   xbt_dynar_t radical_ends;
1145
1146 //   switch (A_surfxml_random_generator) {
1147 //   case AU_surfxml_random_generator:
1148 //   case A_surfxml_random_generator_NONE:
1149 //     random->generator = NONE;
1150 //     break;
1151 //   case A_surfxml_random_generator_DRAND48:
1152 //     random->generator = DRAND48;
1153 //     break;
1154 //   case A_surfxml_random_generator_RAND:
1155 //     random->generator = RAND;
1156 //     break;
1157 //   case A_surfxml_random_generator_RNGSTREAM:
1158 //     random->generator = RNGSTREAM;
1159 //     break;
1160 //   default:
1161 //     surf_parse_error("Invalid random generator");
1162 //     break;
1163 //   }
1164 //   random->seed = seed;
1165 //   random->min = min;
1166 //   random->max = max;
1167
1168 //   /* Check user stupidities */
1169 //   if (max < min)
1170 //     THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1171 //   if (mean < min)
1172 //     THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1173 //   if (mean > max)
1174 //     THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1175
1176 //   /* normalize the mean and standard deviation before storing */
1177 //   random->mean = (mean - min) / (max - min);
1178 //   random->std = std / (max - min);
1179
1180 //   if (random->mean * (1 - random->mean) < random->std * random->std)
1181 //     THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1182 //            random->mean, random->std);
1183
1184 //   XBT_DEBUG
1185 //       ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1186 //        random_id, random->min, random->max, random->mean, random->std,
1187 //        (int)random->generator, random->seed, random_radical);
1188
1189 //   if (!random_value)
1190 //     random_value = xbt_dict_new_homogeneous(free);
1191
1192 //   if (!strcmp(random_radical, "")) {
1193 //     res = random_generate(random);
1194 //     rd_value = bprintf("%f", res);
1195 //     xbt_dict_set(random_value, random_id, rd_value, NULL);
1196 //   } else {
1197 //     radical_elements = xbt_str_split(random_radical, ",");
1198 //     xbt_dynar_foreach(radical_elements, iter, groups) {
1199 //       radical_ends = xbt_str_split(groups, "-");
1200 //       switch (xbt_dynar_length(radical_ends)) {
1201 //       case 1:
1202 //         xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1203 //                    "Custom Random '%s' already exists !", random_id);
1204 //         res = random_generate(random);
1205 //         tmpbuf =
1206 //             bprintf("%s%d", random_id,
1207 //                     atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1208 //         xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1209 //         xbt_free(tmpbuf);
1210 //         break;
1211
1212 //       case 2:
1213 //         start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1214 //         end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1215 //         for (i = start; i <= end; i++) {
1216 //           xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1217 //                      "Custom Random '%s' already exists !", bprintf("%s%d",
1218 //                                                                     random_id,
1219 //                                                                     i));
1220 //           res = random_generate(random);
1221 //           tmpbuf = bprintf("%s%d", random_id, i);
1222 //           xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1223 //           xbt_free(tmpbuf);
1224 //         }
1225 //         break;
1226 //       default:
1227 //         XBT_CRITICAL("Malformed radical");
1228 //         break;
1229 //       }
1230 //       res = random_generate(random);
1231 //       rd_name = bprintf("%s_router", random_id);
1232 //       rd_value = bprintf("%f", res);
1233 //       xbt_dict_set(random_value, rd_name, rd_value, NULL);
1234
1235 //       xbt_dynar_free(&radical_ends);
1236 //     }
1237 //     free(rd_name);
1238 //     xbt_dynar_free(&radical_elements);
1239 //   }
1240 // }
1241
1242 void routing_register_callbacks()
1243 {
1244   sg_platf_host_add_cb(parse_S_host);
1245   sg_platf_router_add_cb(parse_S_router);
1246   sg_platf_host_link_add_cb(parse_S_host_link);
1247   sg_platf_route_add_cb(parse_E_route);
1248   sg_platf_ASroute_add_cb(parse_E_ASroute);
1249   sg_platf_bypassRoute_add_cb(parse_E_bypassRoute);
1250   sg_platf_bypassASroute_add_cb(parse_E_bypassASroute);
1251
1252   sg_platf_cluster_add_cb(routing_parse_cluster);
1253   sg_platf_cabinet_add_cb(routing_parse_cabinet);
1254
1255   sg_platf_peer_add_cb(routing_parse_peer);
1256   sg_platf_postparse_add_cb(routing_parse_postparse);
1257
1258   /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1259   sg_platf_AS_end_add_cb(routing_AS_end);
1260   sg_platf_AS_begin_add_cb(routing_AS_begin);
1261
1262   sg_platf_trace_add_cb(routing_parse_trace);
1263   sg_platf_trace_connect_add_cb(routing_parse_trace_connect);
1264
1265 #ifdef HAVE_TRACING
1266   instr_routing_define_callbacks();
1267 #endif
1268 }
1269
1270 /**
1271  * \brief Recursive function for finalize
1272  *
1273  * \param rc the source host name
1274  *
1275  * This fuction is call by "finalize". It allow to finalize the
1276  * AS or routing components. It delete all the structures.
1277  */
1278 static void finalize_rec(AsPtr as) {
1279   xbt_dict_cursor_t cursor = NULL;
1280   char *key;
1281   AS_t elem;
1282
1283   xbt_dict_foreach(as->p_routingSons, cursor, key, elem) {
1284     finalize_rec(elem);
1285   }
1286
1287   delete as;;
1288 }
1289
1290 /** \brief Frees all memory allocated by the routing module */
1291 void routing_exit(void) {
1292   delete routing_platf;
1293 }
1294
1295 RoutingPlatf::~RoutingPlatf()
1296 {
1297         xbt_dynar_free(&p_lastRoute);
1298         finalize_rec(p_root);
1299 }
1300
1301 AS_t surf_AS_get_routing_root() {
1302   return routing_platf->p_root;
1303 }
1304
1305 const char *surf_AS_get_name(AsPtr as) {
1306   return as->p_name;
1307 }
1308
1309 xbt_dict_t surf_AS_get_routing_sons(AsPtr as) {
1310   return as->p_routingSons;
1311 }
1312
1313 const char *surf_AS_get_model(AsPtr as) {
1314   return as->p_modelDesc->name;
1315 }
1316
1317 xbt_dynar_t surf_AS_get_hosts(AsPtr as) {
1318   xbt_dynar_t elms = as->p_indexNetworkElm;
1319   sg_routing_edge_t relm;
1320   xbt_dictelm_t delm;
1321   int index;
1322   int count = xbt_dynar_length(elms);
1323   xbt_dynar_t res =  xbt_dynar_new(sizeof(xbt_dictelm_t), NULL);
1324   for (index = 0; index < count; index++) {
1325      relm = xbt_dynar_get_as(elms, index, RoutingEdgePtr);
1326      delm = xbt_lib_get_elm_or_null(host_lib, relm->getName());
1327      if (delm!=NULL) {
1328        xbt_dynar_push(res, &delm);
1329      }
1330   }
1331   return res;
1332 }
1333
1334 void surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges) {
1335   as->getGraph(graph, nodes, edges);
1336 }
1337