1 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include <pcre.h> /* regular expression library */
9 #include "simgrid/platf_interface.h" // platform creation API internal interface
11 #include "surf_routing_private.h"
12 #include "surf/surf_routing.h"
13 #include "surf/surfxml_parse_values.h"
16 * @ingroup SURF_build_api
17 * @brief A library containing all known workstations
21 int ROUTING_HOST_LEVEL; //Routing level
22 int SURF_CPU_LEVEL; //Surf cpu level
23 int SURF_WKS_LEVEL; //Surf workstation level
24 int SIMIX_HOST_LEVEL; //Simix level
25 int MSG_HOST_LEVEL; //Msg level
26 int SD_HOST_LEVEL; //Simdag level
27 int COORD_HOST_LEVEL=0; //Coordinates level
28 int NS3_HOST_LEVEL; //host node for ns3
31 * @ingroup SURF_build_api
32 * @brief A library containing all known links
35 int SD_LINK_LEVEL; //Simdag level
36 int SURF_LINK_LEVEL; //Surf level
37 int NS3_LINK_LEVEL; //link for ns3
39 xbt_lib_t as_router_lib;
40 int ROUTING_ASR_LEVEL; //Routing level
41 int COORD_ASR_LEVEL; //Coordinates level
42 int NS3_ASR_LEVEL; //host node for ns3
44 static xbt_dict_t random_value = NULL;
47 routing_global_t global_routing = NULL;
48 AS_t current_routing = NULL;
50 /* global parse functions */
51 xbt_dynar_t parsed_link_list = NULL; /* temporary store of current list link of a route */
52 extern xbt_dynar_t mount_list;
54 static const char *src = NULL; /* temporary store the source name of a route */
55 static const char *dst = NULL; /* temporary store the destination name of a route */
56 static char *gw_src = NULL; /* temporary store the gateway source name of a route */
57 static char *gw_dst = NULL; /* temporary store the gateway destination name of a route */
59 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route, surf, "Routing part of surf");
61 static void routing_parse_peer(sg_platf_peer_cbarg_t peer); /* peer bypass */
62 static void routing_parse_Srandom(void); /* random bypass */
64 static void routing_parse_postparse(void);
66 /* this lines are only for replace use like index in the model table */
71 SURF_MODEL_DIJKSTRACACHE,
78 struct s_model_type routing_models[] = {
80 "Full routing data (fast, large memory requirements, fully expressive)",
81 model_full_create, model_full_end},
83 "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
84 model_floyd_create, model_floyd_end},
86 "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
87 model_dijkstra_create, model_dijkstra_both_end},
89 "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
90 model_dijkstracache_create, model_dijkstra_both_end},
91 {"none", "No routing (Unless you know what you are doing, avoid using this mode in combination with a non Constant network model).",
92 model_none_create, NULL},
93 {"RuleBased", "Rule-Based routing data (...)",
94 model_rulebased_create, NULL},
95 {"Vivaldi", "Vivaldi routing",
96 model_vivaldi_create, NULL},
97 {"Cluster", "Cluster routing",
98 model_cluster_create, NULL},
99 {NULL, NULL, NULL, NULL}
103 * \brief Add a "host" to the network element list
105 static void parse_S_host(sg_platf_host_cbarg_t host)
107 network_element_t info = NULL;
108 if (current_routing->hierarchy == SURF_ROUTING_NULL)
109 current_routing->hierarchy = SURF_ROUTING_BASE;
110 xbt_assert(!xbt_lib_get_or_null(host_lib, host->id, ROUTING_HOST_LEVEL),
111 "Reading a host, processing unit \"%s\" already exists", host->id);
113 info = xbt_new0(s_network_element_t, 1);
114 info->rc_component = current_routing;
115 info->rc_type = SURF_NETWORK_ELEMENT_HOST;
116 info->name = xbt_strdup(host->id);
117 info->id = current_routing->parse_PU(current_routing, (void *) info);
118 xbt_lib_set(host_lib, host->id, ROUTING_HOST_LEVEL, (void *) info);
119 XBT_DEBUG("Having set name '%s' id '%d'",host->id,info->id);
122 xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
126 if (host->coord && strcmp(host->coord, "")) {
130 if (!COORD_HOST_LEVEL)
131 xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
132 /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
133 xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
134 xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
135 xbt_dynar_foreach(ctn_str,cursor, str) {
136 double val = atof(str);
137 xbt_dynar_push(ctn,&val);
139 xbt_dynar_shrink(ctn, 0);
140 xbt_dynar_free(&ctn_str);
141 xbt_lib_set(host_lib, host->id, COORD_HOST_LEVEL, (void *) ctn);
142 XBT_DEBUG("Having set host coordinates for '%s'",host->id);
147 * \brief Add a "router" to the network element list
149 static void parse_S_router(sg_platf_router_cbarg_t router)
151 network_element_t info = NULL;
152 if (current_routing->hierarchy == SURF_ROUTING_NULL)
153 current_routing->hierarchy = SURF_ROUTING_BASE;
154 xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
155 "Reading a router, processing unit \"%s\" already exists",
158 info = xbt_new0(s_network_element_t, 1);
159 info->rc_component = current_routing;
160 info->rc_type = SURF_NETWORK_ELEMENT_ROUTER;
161 info->name = xbt_strdup(router->id);
162 info->id = current_routing->parse_PU(current_routing, (void *) info);
163 xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
164 XBT_DEBUG("Having set name '%s' id '%d'",router->id,info->id);
166 if (strcmp(router->coord, "")) {
170 if (!COORD_ASR_LEVEL)
171 xbt_die ("To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
172 /* Pre-parse the host coordinates */
173 xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
174 xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
175 xbt_dynar_foreach(ctn_str,cursor, str) {
176 double val = atof(str);
177 xbt_dynar_push(ctn,&val);
179 xbt_dynar_shrink(ctn, 0);
180 xbt_dynar_free(&ctn_str);
181 xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
182 XBT_DEBUG("Having set router coordinates for '%s'",router->id);
188 * \brief Set the end points for a route
190 static void routing_parse_S_route(void)
192 if (src != NULL && dst != NULL && parsed_link_list != NULL)
193 THROWF(arg_error, 0, "Route between %s to %s can not be defined",
194 A_surfxml_route_src, A_surfxml_route_dst);
195 src = A_surfxml_route_src;
196 dst = A_surfxml_route_dst;
197 xbt_assert(strlen(src) > 0 || strlen(dst) > 0,
198 "Some limits are null in the route between \"%s\" and \"%s\"",
200 parsed_link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
204 * \brief Set the end points and gateways for a ASroute
206 static void routing_parse_S_ASroute(void)
208 if (src != NULL && dst != NULL && parsed_link_list != NULL)
209 THROWF(arg_error, 0, "Route between %s to %s can not be defined",
210 A_surfxml_ASroute_src, A_surfxml_ASroute_dst);
211 src = A_surfxml_ASroute_src;
212 dst = A_surfxml_ASroute_dst;
213 gw_src = A_surfxml_ASroute_gw_src;
214 gw_dst = A_surfxml_ASroute_gw_dst;
215 xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
216 || strlen(gw_dst) > 0,
217 "Some limits are null in the route between \"%s\" and \"%s\"",
219 parsed_link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
223 * \brief Set the end points for a bypassRoute
225 static void routing_parse_S_bypassRoute(void)
227 if (src != NULL && dst != NULL && parsed_link_list != NULL)
229 "Bypass Route between %s to %s can not be defined",
230 A_surfxml_bypassRoute_src, A_surfxml_bypassRoute_dst);
231 src = A_surfxml_bypassRoute_src;
232 dst = A_surfxml_bypassRoute_dst;
233 gw_src = A_surfxml_bypassRoute_gw_src;
234 gw_dst = A_surfxml_bypassRoute_gw_dst;
235 xbt_assert(strlen(src) > 0 || strlen(dst) > 0 || strlen(gw_src) > 0
236 || strlen(gw_dst) > 0,
237 "Some limits are null in the route between \"%s\" and \"%s\"",
239 parsed_link_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
243 * \brief Set a new link on the actual list of link for a route or ASroute from XML
246 static void routing_parse_link_ctn(void)
249 switch (A_surfxml_link_ctn_direction) {
250 case AU_surfxml_link_ctn_direction:
251 case A_surfxml_link_ctn_direction_NONE:
252 link_id = xbt_strdup(A_surfxml_link_ctn_id);
254 case A_surfxml_link_ctn_direction_UP:
255 link_id = bprintf("%s_UP", A_surfxml_link_ctn_id);
257 case A_surfxml_link_ctn_direction_DOWN:
258 link_id = bprintf("%s_DOWN", A_surfxml_link_ctn_id);
261 xbt_dynar_push(parsed_link_list, &link_id);
265 * \brief Store the route by calling the set_route function of the current routing component
267 static void routing_parse_E_route(void)
269 route_t route = xbt_new0(s_route_t, 1);
270 route->link_list = parsed_link_list;
271 xbt_assert(current_routing->parse_route,
272 "no defined method \"set_route\" in \"%s\"",
273 current_routing->name);
274 current_routing->parse_route(current_routing, src, dst, route);
275 generic_free_route(route);
276 parsed_link_list = NULL;
282 * \brief Store the ASroute by calling the set_ASroute function of the current routing component
284 static void routing_parse_E_ASroute(void)
286 route_t e_route = xbt_new0(s_route_t, 1);
287 e_route->link_list = parsed_link_list;
289 if (!strcmp(current_routing->model_desc->name,"RuleBased")) {
290 e_route->src_gateway = (network_element_t) gw_src; // DIRTY HACK possible only
291 e_route->dst_gateway = (network_element_t) gw_dst; // because of what is in routing_parse_E_ASroute
293 e_route->src_gateway = xbt_lib_get_or_null(as_router_lib, gw_src,
295 if (!e_route->src_gateway)
296 e_route->src_gateway = xbt_lib_get_or_null(host_lib, gw_src,
298 e_route->dst_gateway = xbt_lib_get_or_null(as_router_lib, gw_dst,
300 if (!e_route->dst_gateway)
301 e_route->dst_gateway = xbt_lib_get_or_null(host_lib, gw_dst,
304 xbt_assert(current_routing->parse_ASroute,
305 "no defined method \"set_ASroute\" in \"%s\"",
306 current_routing->name);
307 current_routing->parse_ASroute(current_routing, src, dst, e_route);
308 generic_free_route(e_route);
309 parsed_link_list = NULL;
317 * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
319 static void routing_parse_E_bypassRoute(void)
321 route_t e_route = xbt_new0(s_route_t, 1);
322 e_route->link_list = parsed_link_list;
323 e_route->src_gateway = xbt_lib_get_or_null(as_router_lib, gw_src,
325 if (!e_route->src_gateway)
326 e_route->src_gateway = xbt_lib_get_or_null(host_lib, gw_src,
328 e_route->dst_gateway = xbt_lib_get_or_null(as_router_lib, gw_dst,
330 if (!e_route->dst_gateway)
331 e_route->dst_gateway = xbt_lib_get_or_null(host_lib, gw_dst,
333 xbt_assert(current_routing->parse_bypassroute,
334 "Bypassing mechanism not implemented by routing '%s'",
335 current_routing->name);
336 current_routing->parse_bypassroute(current_routing, src, dst, e_route);
337 parsed_link_list = NULL;
345 * \brief Make a new routing component to the platform
347 * Add a new autonomous system to the platform. Any elements (such as host,
348 * router or sub-AS) added after this call and before the corresponding call
349 * to sg_platf_new_AS_close() will be added to this AS.
351 * Once this function was called, the configuration concerning the used
352 * models cannot be changed anymore.
354 * @param AS_id name of this autonomous system. Must be unique in the platform
355 * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
357 void routing_AS_begin(const char *AS_id, const char *wanted_routing_type)
360 routing_model_description_t model = NULL;
363 xbt_assert(!xbt_lib_get_or_null
364 (as_router_lib, AS_id, ROUTING_ASR_LEVEL),
365 "The AS \"%s\" already exists", AS_id);
367 /* search the routing model */
368 for (cpt = 0; routing_models[cpt].name; cpt++)
369 if (!strcmp(wanted_routing_type, routing_models[cpt].name))
370 model = &routing_models[cpt];
371 /* if its not exist, error */
373 fprintf(stderr, "Routing model %s not found. Existing models:\n",
374 wanted_routing_type);
375 for (cpt = 0; routing_models[cpt].name; cpt++)
376 fprintf(stderr, " %s: %s\n", routing_models[cpt].name,
377 routing_models[cpt].desc);
381 /* make a new routing component */
382 new_as = (AS_t) model->create();
383 new_as->model_desc = model;
384 new_as->hierarchy = SURF_ROUTING_NULL;
385 new_as->name = xbt_strdup(AS_id);
387 network_element_t info = NULL;
388 info = xbt_new0(s_network_element_t, 1);
390 if (current_routing == NULL && global_routing->root == NULL) {
392 /* it is the first one */
393 new_as->routing_father = NULL;
394 global_routing->root = new_as;
396 } else if (current_routing != NULL && global_routing->root != NULL) {
398 xbt_assert(!xbt_dict_get_or_null
399 (current_routing->routing_sons, AS_id),
400 "The AS \"%s\" already exists", AS_id);
401 /* it is a part of the tree */
402 new_as->routing_father = current_routing;
403 /* set the father behavior */
404 if (current_routing->hierarchy == SURF_ROUTING_NULL)
405 current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
406 /* add to the sons dictionary */
407 xbt_dict_set(current_routing->routing_sons, AS_id,
408 (void *) new_as, NULL);
409 /* add to the father element list */
410 info->id = current_routing->parse_AS(current_routing, (void *) info);
412 THROWF(arg_error, 0, "All defined components must be belong to a AS");
415 info->rc_component = new_as->routing_father;
416 info->rc_type = SURF_NETWORK_ELEMENT_AS;
417 info->name = new_as->name;
419 xbt_lib_set(as_router_lib, new_as->name, ROUTING_ASR_LEVEL,
421 XBT_DEBUG("Having set name '%s' id '%d'",new_as->name,info->id);
423 /* set the new current component of the tree */
424 current_routing = new_as;
425 current_routing->net_elem = info;
430 * \brief Specify that the current description of AS is finished
432 * Once you've declared all the content of your AS, you have to close
433 * it with this call. Your AS is not usable until you call this function.
435 * @fixme: this call is not as robust as wanted: bad things WILL happen
436 * if you call it twice for the same AS, or if you forget calling it, or
437 * even if you add stuff to a closed AS
440 void routing_AS_end()
443 if (current_routing == NULL) {
444 THROWF(arg_error, 0, "Close an AS, but none was under construction");
446 if (current_routing->model_desc->end)
447 current_routing->model_desc->end(current_routing);
448 current_routing = current_routing->routing_father;
452 /* Aux Business methods */
455 * \brief Get the AS father and the first elements of the chain
457 * \param src the source host name
458 * \param dst the destination host name
460 * Get the common father of the to processing units, and the first different
461 * father in the chain
463 static void elements_father(network_element_t src, network_element_t dst,
468 xbt_assert(src && dst, "bad parameters for \"elements_father\" method");
469 #define ELEMENTS_FATHER_MAXDEPTH 16 /* increase if it is not enough */
471 AS_t path_src[ELEMENTS_FATHER_MAXDEPTH];
472 AS_t path_dst[ELEMENTS_FATHER_MAXDEPTH];
480 /* (1) find the as where the src and dst are located */
481 network_element_t src_data = src;
482 network_element_t dst_data = dst;
483 src_as = src_data->rc_component;
484 dst_as = dst_data->rc_component;
486 char* src_name = src_data->name;
487 char* dst_name = dst_data->name;
490 xbt_assert(src_as && dst_as,
491 "Ask for route \"from\"(%s) or \"to\"(%s) no found", src_name, dst_name);
493 /* (2) find the path to the root routing component */
494 for (current = src_as; current != NULL; current = current->routing_father) {
495 if (index_src >= ELEMENTS_FATHER_MAXDEPTH)
496 xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_src");
497 path_src[index_src++] = current;
499 for (current = dst_as; current != NULL; current = current->routing_father) {
500 if (index_dst >= ELEMENTS_FATHER_MAXDEPTH)
501 xbt_die("ELEMENTS_FATHER_MAXDEPTH should be increased for path_dst");
502 path_dst[index_dst++] = current;
505 /* (3) find the common father */
507 current_src = path_src[--index_src];
508 current_dst = path_dst[--index_dst];
509 } while (index_src > 0 && index_dst > 0 && current_src == current_dst);
511 /* (4) they are not in the same routing component, make the path */
512 if (current_src == current_dst)
513 father = current_src;
515 father = path_src[index_src + 1];
517 /* (5) result generation */
518 *res_father = father; /* first the common father of src and dst */
519 *res_src = current_src; /* second the first different father of src */
520 *res_dst = current_dst; /* three the first different father of dst */
522 #undef ELEMENTS_FATHER_MAXDEPTH
525 /* Global Business methods */
528 * \brief Recursive function for get_route_latency
530 * \param src the source host name
531 * \param dst the destination host name
532 * \param *route the route where the links are stored. It is either NULL or a ready to use dynar
533 * \param *latency the latency, if needed
535 * This function is called by "get_route" and "get_latency". It allows to walk
536 * recursively through the ASes tree.
538 static void _get_route_and_latency(network_element_t src, network_element_t dst,
539 xbt_dynar_t * links, double *latency)
542 memset(&route,0,sizeof(route));
544 XBT_DEBUG("Solve route/latency \"%s\" to \"%s\"", src->name, dst->name);
545 xbt_assert(src && dst, "bad parameters for \"_get_route_latency\" method");
547 /* Find how src and dst are interconnected */
548 AS_t common_father, src_father, dst_father;
549 elements_father(src, dst, &common_father, &src_father, &dst_father);
550 XBT_DEBUG("elements_father: common father '%s' src_father '%s' dst_father '%s'",
551 common_father->name,src_father->name,dst_father->name);
553 /* If src and dst are in the same AS, life is good */
554 if (src_father == dst_father) { /* SURF_ROUTING_BASE */
556 route.link_list = *links;
558 common_father->get_route_and_latency(common_father, src, dst, &route,latency);
562 /* If we are here, src and dst are not in the same AS; check whether a direct bypass is defined */
564 route_t e_route_bypass = NULL;
565 if (common_father->get_bypass_route)
566 e_route_bypass = common_father->get_bypass_route(common_father, src, dst);
568 if (e_route_bypass) { /* Common ancestor is kind enough to declare a bypass route from src to dst -- use it and bail out */
570 xbt_die("Bypass cannot work yet with get_latency"); // FIXME: get_bypass_route should update the latency itself, just like get_route
572 // // FIXME this path is never tested. I need examples to check the bypass mechanism...
573 // THROW_UNIMPLEMENTED; // let's warn the users of the problem
574 xbt_dynar_merge(links,&(e_route_bypass->link_list));
575 generic_free_route(e_route_bypass);
579 /* Not in the same AS, no bypass. We'll have to find our path between the ASes recursively*/
581 route.link_list = xbt_dynar_new(global_routing->size_of_link, NULL);
582 // Find the net_card corresponding to father
583 network_element_t src_father_net_elm = src_father->net_elem;
584 network_element_t dst_father_net_elm = dst_father->net_elem;
586 common_father->get_route_and_latency(common_father, src_father_net_elm, dst_father_net_elm, &route,latency);
588 xbt_assert((route.src_gateway != NULL) && (route.dst_gateway != NULL),
589 "bad gateways for route from \"%s\" to \"%s\"", src->name, dst->name);
591 network_element_t src_gateway_net_elm = route.src_gateway;
592 network_element_t dst_gateway_net_elm = route.dst_gateway;
594 /* If source gateway is not our source, we have to recursively find our way up to this point */
595 if (src != src_gateway_net_elm)
596 _get_route_and_latency(src, src_gateway_net_elm, links, latency);
598 xbt_dynar_merge(links,&(route.link_list));
600 /* If dest gateway is not our destination, we have to recursively find our way from this point */
601 // FIXME why can't I factorize it the same way than [src;src_gw] without breaking the examples??
602 if (dst_gateway_net_elm != dst) {
603 _get_route_and_latency(dst_gateway_net_elm, dst, links, latency);
605 xbt_dynar_free(&route.link_list);
609 * \brief Find a route between hosts
611 * \param src the network_element_t for src host
612 * \param dst the network_element_t for dst host
613 * \param route where to store the list of links.
614 * If *route=NULL, create a short lived dynar. Else, fill the provided dynar
615 * \param latency where to store the latency experienced on the path (or NULL if not interested)
616 * It is the caller responsability to initialize latency to 0 (we add to provided route)
619 * walk through the routing components tree and find a route between hosts
620 * by calling the differents "get_route" functions in each routing component.
622 void routing_get_route_and_latency(network_element_t src,
623 network_element_t dst,
624 xbt_dynar_t * route, double *latency)
627 xbt_dynar_reset(global_routing->last_route);
628 *route = global_routing->last_route;
631 _get_route_and_latency(src, dst, route, latency);
633 xbt_assert(!latency || *latency >= 0.0,
634 "negative latency on route between \"%s\" and \"%s\"", src->name, dst->name);
637 static xbt_dynar_t recursive_get_onelink_routes(AS_t rc)
639 xbt_dynar_t ret = xbt_dynar_new(sizeof(onelink_t), xbt_free);
641 //adding my one link routes
642 xbt_dynar_t onelink_mine = rc->get_onelink_routes(rc);
644 xbt_dynar_merge(&ret,&onelink_mine);
648 xbt_dict_cursor_t cursor = NULL;
650 xbt_dict_foreach(rc->routing_sons, cursor, key, rc_child) {
651 xbt_dynar_t onelink_child = recursive_get_onelink_routes(rc_child);
653 xbt_dynar_merge(&ret,&onelink_child);
658 static xbt_dynar_t get_onelink_routes(void)
660 return recursive_get_onelink_routes(global_routing->root);
663 e_surf_network_element_type_t routing_get_network_element_type(const char *name)
665 network_element_t rc = NULL;
667 rc = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
671 rc = xbt_lib_get_or_null(as_router_lib, name, ROUTING_ASR_LEVEL);
675 return SURF_NETWORK_ELEMENT_NULL;
679 * \brief Generic method: create the global routing schema
681 * Make a global routing structure and set all the parsing functions.
683 void routing_model_create(size_t size_of_links, void *loopback)
685 /* config the uniq global routing */
686 global_routing = xbt_new0(s_routing_global_t, 1);
687 global_routing->root = NULL;
688 global_routing->get_onelink_routes = get_onelink_routes;
689 global_routing->loopback = loopback;
690 global_routing->size_of_link = size_of_links;
691 global_routing->last_route = xbt_dynar_new(global_routing->size_of_link,NULL);
692 /* no current routing at moment */
693 current_routing = NULL;
697 /* ************************************************** */
698 /* ********** PATERN FOR NEW ROUTING **************** */
700 /* The minimal configuration of a new routing model need the next functions,
701 * also you need to set at the start of the file, the new model in the model
702 * list. Remember keep the null ending of the list.
704 /*** Routing model structure ***/
706 // s_routing_component_t generic_routing;
707 // /* things that your routing model need */
708 // } s_routing_component_NEW_t,*routing_component_NEW_t;
710 /*** Parse routing model functions ***/
711 // static void model_NEW_set_processing_unit(routing_component_t rc, const char* name) {}
712 // static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
713 // static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
714 // static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
715 // static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
717 /*** Business methods ***/
718 // static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
719 // static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
720 // static void NEW_finalize(routing_component_t rc) { xbt_free(rc);}
722 /*** Creation routing model functions ***/
723 // static void* model_NEW_create(void) {
724 // routing_component_NEW_t new_component = xbt_new0(s_routing_component_NEW_t,1);
725 // new_component->generic_routing.set_processing_unit = model_NEW_set_processing_unit;
726 // new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
727 // new_component->generic_routing.set_route = model_NEW_set_route;
728 // new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
729 // new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
730 // new_component->generic_routing.get_route = NEW_get_route;
731 // new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
732 // new_component->generic_routing.finalize = NEW_finalize;
733 // /* initialization of internal structures */
734 // return new_component;
736 // static void model_NEW_load(void) {} /* mandatory */
737 // static void model_NEW_unload(void) {} /* mandatory */
738 // static void model_NEW_end(void) {} /* mandatory */
740 /* ************************************************************************** */
741 /* ************************* GENERIC PARSE FUNCTIONS ************************ */
743 static void routing_parse_cluster(sg_platf_cluster_cbarg_t cluster)
745 char *host_id, *groups, *link_id = NULL;
746 xbt_dict_t patterns = NULL;
748 s_sg_platf_host_cbarg_t host;
749 s_sg_platf_link_cbarg_t link;
753 xbt_dynar_t radical_elements;
754 xbt_dynar_t radical_ends;
756 if (strcmp(cluster->availability_trace, "")
757 || strcmp(cluster->state_trace, "")) {
758 patterns = xbt_dict_new_homogeneous(xbt_free_f);
759 xbt_dict_set(patterns, "id", xbt_strdup(cluster->id), NULL);
760 xbt_dict_set(patterns, "prefix", xbt_strdup(cluster->prefix), NULL);
761 xbt_dict_set(patterns, "suffix", xbt_strdup(cluster->suffix), NULL);
764 XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", cluster->id);
765 sg_platf_new_AS_begin(cluster->id, "Cluster");
767 current_routing->link_up_down_list
768 = xbt_dynar_new(sizeof(s_surf_parsing_link_up_down_t),NULL);
771 radical_elements = xbt_str_split(cluster->radical, ",");
772 xbt_dynar_foreach(radical_elements, iter, groups) {
774 radical_ends = xbt_str_split(groups, "-");
775 start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
777 switch (xbt_dynar_length(radical_ends)) {
782 end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
785 surf_parse_error("Malformed radical");
788 for (i = start; i <= end; i++) {
790 bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
791 link_id = bprintf("%s_link_%d", cluster->id, i);
793 XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->power);
795 memset(&host, 0, sizeof(host));
797 if (strcmp(cluster->availability_trace, "")) {
798 xbt_dict_set(patterns, "radical", bprintf("%d", i), NULL);
799 char *avail_file = xbt_str_varsubst(cluster->availability_trace, patterns);
800 XBT_DEBUG("\tavailability_file=\"%s\"", avail_file);
801 host.power_trace = tmgr_trace_new(avail_file);
802 xbt_free(avail_file);
804 XBT_DEBUG("\tavailability_file=\"\"");
807 if (strcmp(cluster->state_trace, "")) {
808 char *avail_file = xbt_str_varsubst(cluster->state_trace, patterns);
809 XBT_DEBUG("\tstate_file=\"%s\"", avail_file);
810 host.state_trace = tmgr_trace_new(avail_file);
811 xbt_free(avail_file);
813 XBT_DEBUG("\tstate_file=\"\"");
816 host.power_peak = cluster->power;
817 host.power_scale = 1.0;
818 host.core_amount = cluster->core_amount;
819 host.initial_state = SURF_RESOURCE_ON;
821 sg_platf_new_host(&host);
822 XBT_DEBUG("</host>");
824 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id,
825 cluster->bw, cluster->lat);
827 memset(&link, 0, sizeof(link));
829 link.bandwidth = cluster->bw;
830 link.latency = cluster->lat;
831 link.state = SURF_RESOURCE_ON;
832 link.policy = cluster->sharing_policy;
833 sg_platf_new_link(&link);
835 s_surf_parsing_link_up_down_t info;
837 if (link.policy == SURF_LINK_FULLDUPLEX) {
838 char *tmp_link = bprintf("%s_UP", link_id);
840 xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
842 tmp_link = bprintf("%s_DOWN", link_id);
844 xbt_lib_get_or_null(link_lib, tmp_link, SURF_LINK_LEVEL);
847 info.link_up = xbt_lib_get_or_null(link_lib, link_id, SURF_LINK_LEVEL);
848 info.link_down = info.link_up;
850 xbt_dynar_push(current_routing->link_up_down_list,&info);
855 xbt_dynar_free(&radical_ends);
857 xbt_dynar_free(&radical_elements);
859 // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
860 // and it's very useful to connect clusters together
862 XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
864 s_sg_platf_router_cbarg_t router;
865 memset(&router, 0, sizeof(router));
866 router.id = cluster->router_id;
868 if (!router.id || !strcmp(router.id, ""))
870 bprintf("%s%s_router%s", cluster->prefix, cluster->id,
872 sg_platf_new_router(&router);
876 if ((cluster->bb_bw != 0) && (cluster->bb_lat != 0)) {
877 char *link_backbone = bprintf("%s_backbone", cluster->id);
878 XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link_backbone,
879 cluster->bb_bw, cluster->bb_lat);
881 memset(&link, 0, sizeof(link));
882 link.id = link_backbone;
883 link.bandwidth = cluster->bb_bw;
884 link.latency = cluster->bb_lat;
885 link.state = SURF_RESOURCE_ON;
886 link.policy = cluster->bb_sharing_policy;
888 sg_platf_new_link(&link);
890 surf_routing_cluster_add_backbone(current_routing, xbt_lib_get_or_null(link_lib, link_backbone, SURF_LINK_LEVEL));
896 sg_platf_new_AS_end();
898 xbt_dict_free(&patterns); // no op if it were never set
901 static void routing_parse_postparse(void) {
902 xbt_dict_free(&random_value);
905 static void routing_parse_peer(sg_platf_peer_cbarg_t peer)
907 static int AX_ptr = 0;
908 char *host_id = NULL;
909 char *router_id, *link_router, *link_backbone, *link_id_up, *link_id_down;
911 static unsigned int surfxml_buffer_stack_stack_ptr = 1;
912 static unsigned int surfxml_buffer_stack_stack[1024];
914 surfxml_buffer_stack_stack[0] = 0;
916 surfxml_bufferstack_push(1);
918 XBT_DEBUG("<AS id=\"%s\"\trouting=\"Full\">", peer->id);
919 sg_platf_new_AS_begin(peer->id, "Full");
922 host_id = HOST_PEER(peer->id);
923 router_id = ROUTER_PEER(peer->id);
924 link_id_up = LINK_UP_PEER(peer->id);
925 link_id_down = LINK_DOWN_PEER(peer->id);
927 link_router = bprintf("%s_link_router", peer->id);
928 link_backbone = bprintf("%s_backbone", peer->id);
930 XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->power);
931 s_sg_platf_host_cbarg_t host;
932 memset(&host, 0, sizeof(host));
933 host.initial_state = SURF_RESOURCE_ON;
935 host.power_peak = peer->power;
936 host.power_scale = 1.0;
937 host.power_trace = peer->availability_trace;
938 host.state_trace = peer->state_trace;
939 host.core_amount = 1;
940 host.coord = peer->coord;
941 sg_platf_new_host(&host);
944 XBT_DEBUG("<router id=\"%s\"\tcoordinates=\"%s\"/>", router_id, peer->coord);
945 s_sg_platf_router_cbarg_t router;
946 memset(&router, 0, sizeof(router));
947 router.id = router_id;
948 router.coord = peer->coord;
949 sg_platf_new_router(&router);
951 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_up,
952 peer->bw_in, peer->lat);
953 s_sg_platf_link_cbarg_t link;
954 memset(&link, 0, sizeof(link));
955 link.state = SURF_RESOURCE_ON;
956 link.policy = SURF_LINK_SHARED;
957 link.id = link_id_up;
958 link.bandwidth = peer->bw_in;
959 link.latency = peer->lat;
960 sg_platf_new_link(&link);
962 // FIXME: dealing with full duplex is not the role of this piece of code, I'd say [Mt]
963 // Instead, it should be created fullduplex, and the models will do what's needed in this case
964 XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id_down,
965 peer->bw_out, peer->lat);
966 link.id = link_id_down;
967 sg_platf_new_link(&link);
972 XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", host_id, router_id);
973 XBT_DEBUG("symmetrical=\"NO\">");
974 SURFXML_BUFFER_SET(route_src, host_id);
975 SURFXML_BUFFER_SET(route_dst, router_id);
976 A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
977 SURFXML_START_TAG(route);
979 XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_up);
980 SURFXML_BUFFER_SET(link_ctn_id, link_id_up);
981 A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
982 SURFXML_START_TAG(link_ctn);
983 SURFXML_END_TAG(link_ctn);
985 XBT_DEBUG("</route>");
986 SURFXML_END_TAG(route);
989 XBT_DEBUG("<route\tsrc=\"%s\"\tdst=\"%s\"", router_id, host_id);
990 XBT_DEBUG("symmetrical=\"NO\">");
991 SURFXML_BUFFER_SET(route_src, router_id);
992 SURFXML_BUFFER_SET(route_dst, host_id);
993 A_surfxml_route_symmetrical = A_surfxml_route_symmetrical_NO;
994 SURFXML_START_TAG(route);
996 XBT_DEBUG("<link_ctn\tid=\"%s\"/>", link_id_down);
997 SURFXML_BUFFER_SET(link_ctn_id, link_id_down);
998 A_surfxml_link_ctn_direction = A_surfxml_link_ctn_direction_NONE;
999 SURFXML_START_TAG(link_ctn);
1000 SURFXML_END_TAG(link_ctn);
1002 XBT_DEBUG("</route>");
1003 SURFXML_END_TAG(route);
1006 sg_platf_new_AS_end();
1009 //xbt_dynar_free(&tab_elements_num);
1013 free(link_backbone);
1016 surfxml_bufferstack_pop(1);
1019 static void routing_parse_Srandom(void)
1021 double mean, std, min, max, seed;
1022 char *random_id = A_surfxml_random_id;
1023 char *random_radical = A_surfxml_random_radical;
1024 char *rd_name = NULL;
1026 mean = surf_parse_get_double(A_surfxml_random_mean);
1027 std = surf_parse_get_double(A_surfxml_random_std_deviation);
1028 min = surf_parse_get_double(A_surfxml_random_min);
1029 max = surf_parse_get_double(A_surfxml_random_max);
1030 seed = surf_parse_get_double(A_surfxml_random_seed);
1034 random_data_t random = xbt_new0(s_random_data_t, 1);
1037 xbt_dynar_t radical_elements;
1041 xbt_dynar_t radical_ends;
1043 switch (A_surfxml_random_generator) {
1044 case AU_surfxml_random_generator:
1045 case A_surfxml_random_generator_NONE:
1046 random->generator = NONE;
1048 case A_surfxml_random_generator_DRAND48:
1049 random->generator = DRAND48;
1051 case A_surfxml_random_generator_RAND:
1052 random->generator = RAND;
1054 case A_surfxml_random_generator_RNGSTREAM:
1055 random->generator = RNGSTREAM;
1058 surf_parse_error("Invalid random generator");
1061 random->seed = seed;
1065 /* Check user stupidities */
1067 THROWF(arg_error, 0, "random->max < random->min (%f < %f)", max, min);
1069 THROWF(arg_error, 0, "random->mean < random->min (%f < %f)", mean, min);
1071 THROWF(arg_error, 0, "random->mean > random->max (%f > %f)", mean, max);
1073 /* normalize the mean and standard deviation before storing */
1074 random->mean = (mean - min) / (max - min);
1075 random->std = std / (max - min);
1077 if (random->mean * (1 - random->mean) < random->std * random->std)
1078 THROWF(arg_error, 0, "Invalid mean and standard deviation (%f and %f)",
1079 random->mean, random->std);
1082 ("id = '%s' min = '%f' max = '%f' mean = '%f' std_deviatinon = '%f' generator = '%d' seed = '%ld' radical = '%s'",
1083 random_id, random->min, random->max, random->mean, random->std,
1084 (int)random->generator, random->seed, random_radical);
1087 random_value = xbt_dict_new_homogeneous(free);
1089 if (!strcmp(random_radical, "")) {
1090 res = random_generate(random);
1091 rd_value = bprintf("%f", res);
1092 xbt_dict_set(random_value, random_id, rd_value, NULL);
1094 radical_elements = xbt_str_split(random_radical, ",");
1095 xbt_dynar_foreach(radical_elements, iter, groups) {
1096 radical_ends = xbt_str_split(groups, "-");
1097 switch (xbt_dynar_length(radical_ends)) {
1099 xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1100 "Custom Random '%s' already exists !", random_id);
1101 res = random_generate(random);
1103 bprintf("%s%d", random_id,
1104 atoi(xbt_dynar_getfirst_as(radical_ends, char *)));
1105 xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1110 start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
1111 end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
1112 for (i = start; i <= end; i++) {
1113 xbt_assert(!xbt_dict_get_or_null(random_value, random_id),
1114 "Custom Random '%s' already exists !", bprintf("%s%d",
1117 res = random_generate(random);
1118 tmpbuf = bprintf("%s%d", random_id, i);
1119 xbt_dict_set(random_value, tmpbuf, bprintf("%f", res), NULL);
1124 XBT_CRITICAL("Malformed radical");
1127 res = random_generate(random);
1128 rd_name = bprintf("%s_router", random_id);
1129 rd_value = bprintf("%f", res);
1130 xbt_dict_set(random_value, rd_name, rd_value, NULL);
1132 xbt_dynar_free(&radical_ends);
1135 xbt_dynar_free(&radical_elements);
1139 void routing_register_callbacks()
1141 sg_platf_host_add_cb(parse_S_host);
1142 sg_platf_router_add_cb(parse_S_router);
1144 surfxml_add_callback(STag_surfxml_random_cb_list, &routing_parse_Srandom);
1146 surfxml_add_callback(STag_surfxml_route_cb_list, &routing_parse_S_route);
1147 surfxml_add_callback(STag_surfxml_ASroute_cb_list, &routing_parse_S_ASroute);
1148 surfxml_add_callback(STag_surfxml_bypassRoute_cb_list,
1149 &routing_parse_S_bypassRoute);
1151 surfxml_add_callback(ETag_surfxml_link_ctn_cb_list, &routing_parse_link_ctn);
1153 surfxml_add_callback(ETag_surfxml_route_cb_list, &routing_parse_E_route);
1154 surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &routing_parse_E_ASroute);
1155 surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list,
1156 &routing_parse_E_bypassRoute);
1158 sg_platf_cluster_add_cb(routing_parse_cluster);
1160 sg_platf_peer_add_cb(routing_parse_peer);
1161 sg_platf_postparse_add_cb(routing_parse_postparse);
1163 /* we care about the ASes while parsing the platf. Incredible, isnt it? */
1164 sg_platf_AS_end_add_cb(routing_AS_end);
1165 sg_platf_AS_begin_add_cb(routing_AS_begin);
1168 instr_routing_define_callbacks();
1173 * \brief Recursive function for finalize
1175 * \param rc the source host name
1177 * This fuction is call by "finalize". It allow to finalize the
1178 * AS or routing components. It delete all the structures.
1180 static void finalize_rec(AS_t as) {
1181 xbt_dict_cursor_t cursor = NULL;
1185 xbt_dict_foreach(as->routing_sons, cursor, key, elem) {
1192 /** \brief Frees all memory allocated by the routing module */
1193 void routing_exit(void) {
1194 if (!global_routing)
1196 xbt_dynar_free(&global_routing->last_route);
1197 finalize_rec(global_routing->root);
1198 xbt_free(global_routing);