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[simgrid.git] / src / surf / sg_platf.cpp
1 /* Copyright (c) 2006-2014. 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 "xbt/misc.h"
8 #include "xbt/log.h"
9 #include "xbt/str.h"
10 #include "xbt/dict.h"
11 #include "xbt/RngStream.h"
12 #include <xbt/signal.hpp>
13 #include "src/surf/HostImpl.hpp"
14 #include "surf/surf.h"
15
16 #include "src/simix/smx_private.h"
17
18 #include "src/include/simgrid/sg_config.h"
19 #include "src/surf/xml/platf_private.hpp"
20
21 #include "src/surf/cpu_interface.hpp"
22 #include "src/surf/network_interface.hpp"
23 #include "surf/surf_routing.h" // FIXME: brain dead public header
24
25 #include "src/surf/AsImpl.hpp"
26 #include "src/surf/AsCluster.hpp"
27 #include "src/surf/AsClusterTorus.hpp"
28 #include "src/surf/AsClusterFatTree.hpp"
29 #include "src/surf/AsDijkstra.hpp"
30 #include "src/surf/AsFloyd.hpp"
31 #include "src/surf/AsFull.hpp"
32 #include "src/surf/AsNone.hpp"
33 #include "src/surf/AsVivaldi.hpp"
34
35 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
36
37 XBT_PRIVATE xbt_dynar_t mount_list = NULL;
38
39 namespace simgrid {
40 namespace surf {
41
42 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
43 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
44 simgrid::xbt::signal<void(void)> on_postparse;
45
46 }
47 }
48
49 static int surf_parse_models_setup_already_called = 0;
50
51 /* Turn something like "1-4,6,9-11" into the vector {1,2,3,4,6,9,10,11} */
52 static std::vector<int> *explodesRadical(const char*radicals){
53   std::vector<int> *exploded = new std::vector<int>();
54   char *groups;
55   unsigned int iter;
56
57   //Make all hosts
58   xbt_dynar_t radical_elements = xbt_str_split(radicals, ",");
59   xbt_dynar_foreach(radical_elements, iter, groups) {
60
61     xbt_dynar_t radical_ends = xbt_str_split(groups, "-");
62     int start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
63     int end=0;
64
65     switch (xbt_dynar_length(radical_ends)) {
66     case 1:
67       end = start;
68       break;
69     case 2:
70       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
71       break;
72     default:
73       surf_parse_error("Malformed radical: %s", groups);
74       break;
75     }
76
77     for (int i = start; i <= end; i++)
78       exploded->push_back( i );
79
80     xbt_dynar_free(&radical_ends);
81   }
82   xbt_dynar_free(&radical_elements);
83
84   return exploded;
85 }
86
87
88 /** The current AS in the parsing */
89 static simgrid::surf::AsImpl *current_routing = NULL;
90 static simgrid::surf::AsImpl* routing_get_current()
91 {
92   return current_routing;
93 }
94
95 /** Module management function: creates all internal data structures */
96 void sg_platf_init(void) {
97 }
98
99 /** Module management function: frees all internal data structures */
100 void sg_platf_exit(void) {
101   simgrid::surf::on_link.disconnect_all_slots();
102   simgrid::surf::on_cluster.disconnect_all_slots();
103   simgrid::surf::on_postparse.disconnect_all_slots();
104
105   /* make sure that we will reinit the models while loading the platf once reinited */
106   surf_parse_models_setup_already_called = 0;
107   surf_parse_lex_destroy();
108 }
109
110 /** @brief Add an "host" to the current AS */
111 void sg_platf_new_host(sg_platf_host_cbarg_t host)
112 {
113   xbt_assert(! sg_host_by_name(host->id), "Refusing to create a second host named '%s'.", host->id);
114
115   simgrid::surf::AsImpl* current_routing = routing_get_current();
116   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
117     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
118
119   simgrid::surf::NetCard *netcard =
120       new simgrid::surf::NetCardImpl(host->id, simgrid::surf::NetCard::Type::Host, current_routing);
121
122   sg_host_t h = simgrid::s4u::Host::by_name_or_create(host->id);
123   h->pimpl_netcard = netcard;
124
125   if(mount_list){
126     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
127     mount_list = NULL;
128   }
129
130   if (host->coord && strcmp(host->coord, "")) {
131     unsigned int cursor;
132     char*str;
133
134     xbt_assert(COORD_HOST_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
135     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
136     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
137     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", host->id);
138
139     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
140     xbt_dynar_foreach(ctn_str,cursor, str) {
141       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
142       xbt_dynar_push(ctn,&val);
143     }
144     xbt_dynar_free(&ctn_str);
145     xbt_dynar_shrink(ctn, 0);
146     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
147   }
148
149   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h, host->speed_per_pstate, host->core_amount);
150   if (host->state_trace)
151     cpu->setStateTrace(host->state_trace);
152   if (host->speed_trace)
153     cpu->setSpeedTrace(host->speed_trace);
154   surf_host_model->createHost(host->id, netcard, cpu)->attach(h);
155
156   if (host->properties) {
157     xbt_dict_cursor_t cursor=NULL;
158     char *key,*data;
159     xbt_dict_foreach(host->properties,cursor,key,data)
160       h->setProperty(key,data);
161   }
162
163   if (host->pstate != 0)
164     cpu->setPState(host->pstate);
165
166   simgrid::s4u::Host::onCreation(*h);
167
168   if (TRACE_is_enabled() && TRACE_needs_platform())
169     sg_instr_new_host(host);
170 }
171
172 /** @brief Add a "router" to the network element list */
173 void sg_platf_new_router(sg_platf_router_cbarg_t router)
174 {
175   simgrid::surf::AsImpl* current_routing = routing_get_current();
176
177   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
178     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
179   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
180              "Refusing to create a router named '%s': this name already describes a node.", router->id);
181
182   simgrid::surf::NetCard *netcard =
183     new simgrid::surf::NetCardImpl(router->id, simgrid::surf::NetCard::Type::Router, current_routing);
184   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) netcard);
185   XBT_DEBUG("Having set name '%s' id '%d'", router->id, netcard->id());
186
187   if (router->coord && strcmp(router->coord, "")) {
188     unsigned int cursor;
189     char*str;
190
191     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
192     /* Pre-parse the host coordinates */
193     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
194     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
195     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
196     xbt_dynar_foreach(ctn_str,cursor, str) {
197       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
198       xbt_dynar_push(ctn,&val);
199     }
200     xbt_dynar_free(&ctn_str);
201     xbt_dynar_shrink(ctn, 0);
202     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
203   }
204
205   if (TRACE_is_enabled() && TRACE_needs_platform())
206     sg_instr_new_router(router);
207 }
208
209 void sg_platf_new_link(sg_platf_link_cbarg_t link){
210   std::vector<char*> names;
211
212   if (link->policy == SURF_LINK_FULLDUPLEX) {
213     names.push_back(bprintf("%s_UP", link->id));
214     names.push_back(bprintf("%s_DOWN", link->id));
215   } else {
216     names.push_back(xbt_strdup(link->id));
217   }
218   for (auto link_name : names) {
219     Link *l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy, link->properties);
220
221     if (link->latency_trace)
222       l->setLatencyTrace(link->latency_trace);
223     if (link->bandwidth_trace)
224       l->setBandwidthTrace(link->bandwidth_trace);
225     if (link->state_trace)
226       l->setStateTrace(link->state_trace);
227
228     xbt_free(link_name);
229   }
230
231   simgrid::surf::on_link(link);
232 }
233
234 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
235 {
236   using simgrid::surf::AsCluster;
237   using simgrid::surf::AsClusterTorus;
238   using simgrid::surf::AsClusterFatTree;
239
240   int rankId=0;
241
242   s_sg_platf_link_cbarg_t link;
243
244   // What an inventive way of initializing the AS that I have as ancestor :-(
245   s_sg_platf_AS_cbarg_t AS;
246   AS.id = cluster->id;
247   switch (cluster->topology) {
248   case SURF_CLUSTER_TORUS:
249     AS.routing = A_surfxml_AS_routing_ClusterTorus;
250     break;
251   case SURF_CLUSTER_FAT_TREE:
252     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
253     break;
254   default:
255     AS.routing = A_surfxml_AS_routing_Cluster;
256     break;
257   }
258   sg_platf_new_AS_begin(&AS);
259   simgrid::surf::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
260   current_as->parse_specific_arguments(cluster);
261
262   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
263     current_as->nb_links_per_node_++;
264     current_as->has_loopback_ = 1;
265   }
266
267   if(cluster->limiter_link!=0){
268     current_as->nb_links_per_node_++;
269     current_as->has_limiter_ = 1;
270   }
271
272   std::vector<int> *radicals = explodesRadical(cluster->radical);
273   for (int i : *radicals) {
274     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
275     char * link_id = bprintf("%s_link_%d", cluster->id, i);
276
277     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
278
279     s_sg_platf_host_cbarg_t host;
280     memset(&host, 0, sizeof(host));
281     host.id = host_id;
282     if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
283       xbt_dict_cursor_t cursor=NULL;
284       char *key,*data;
285       host.properties = xbt_dict_new();
286
287       xbt_dict_foreach(cluster->properties,cursor,key,data) {
288         xbt_dict_set(host.properties, key, xbt_strdup(data),free);
289       }
290     }
291
292     host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
293     xbt_dynar_push(host.speed_per_pstate,&cluster->speed);
294     host.pstate = 0;
295     host.core_amount = cluster->core_amount;
296     host.coord = "";
297     sg_platf_new_host(&host);
298     xbt_dynar_free(&host.speed_per_pstate);
299     XBT_DEBUG("</host>");
300
301     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
302
303     s_surf_parsing_link_up_down_t info_lim, info_loop;
304     // All links are saved in a matrix;
305     // every row describes a single node; every node
306     // may have multiple links.
307     // the first column may store a link from x to x if p_has_loopback is set
308     // the second column may store a limiter link if p_has_limiter is set
309     // other columns are to store one or more link for the node
310
311     //add a loopback link
312     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
313       char *tmp_link = bprintf("%s_loopback", link_id);
314       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
315
316       memset(&link, 0, sizeof(link));
317       link.id        = tmp_link;
318       link.bandwidth = cluster->loopback_bw;
319       link.latency   = cluster->loopback_lat;
320       link.policy    = SURF_LINK_FATPIPE;
321       sg_platf_new_link(&link);
322       info_loop.link_up = info_loop.link_down = Link::byName(tmp_link);
323       free(tmp_link);
324       auto as_cluster = static_cast<AsCluster*>(current_as);
325       xbt_dynar_set(as_cluster->privateLinks_, rankId*as_cluster->nb_links_per_node_, &info_loop);
326     }
327
328     //add a limiter link (shared link to account for maximal bandwidth of the node)
329     if(cluster->limiter_link!=0){
330       char *tmp_link = bprintf("%s_limiter", link_id);
331       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
332
333       memset(&link, 0, sizeof(link));
334       link.id = tmp_link;
335       link.bandwidth = cluster->limiter_link;
336       link.latency = 0;
337       link.policy = SURF_LINK_SHARED;
338       sg_platf_new_link(&link);
339       info_lim.link_up = info_lim.link_down = Link::byName(tmp_link);
340       free(tmp_link);
341       xbt_dynar_set(current_as->privateLinks_, rankId * current_as->nb_links_per_node_ + current_as->has_loopback_ , &info_lim);
342     }
343
344     //call the cluster function that adds the others links
345     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
346       ((AsClusterFatTree*) current_as)->addProcessingNode(i);
347     }
348     else {
349       current_as->create_links_for_node(cluster, i, rankId,
350           rankId*current_as->nb_links_per_node_ + current_as->has_loopback_ + current_as->has_limiter_ );
351     }
352     xbt_free(link_id);
353     xbt_free(host_id);
354     rankId++;
355   }
356
357   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
358   // and it's very useful to connect clusters together
359   XBT_DEBUG(" ");
360   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
361   char *newid = NULL;
362   s_sg_platf_router_cbarg_t router;
363   memset(&router, 0, sizeof(router));
364   router.id = cluster->router_id;
365   if (!router.id || !strcmp(router.id, ""))
366     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
367   sg_platf_new_router(&router);
368   current_as->router_ = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
369   free(newid);
370
371   //Make the backbone
372   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
373
374     memset(&link, 0, sizeof(link));
375     link.id        = bprintf("%s_backbone", cluster->id);
376     link.bandwidth = cluster->bb_bw;
377     link.latency   = cluster->bb_lat;
378     link.policy    = cluster->bb_sharing_policy;
379
380     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
381     sg_platf_new_link(&link);
382
383     routing_cluster_add_backbone(Link::byName(link.id));
384     free((char*)link.id);
385   }
386
387   XBT_DEBUG("</AS>");
388   sg_platf_new_AS_seal();
389
390   simgrid::surf::on_cluster(cluster);
391 }
392 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
393   simgrid::surf::AsCluster *cluster = dynamic_cast<simgrid::surf::AsCluster*>(current_routing);
394
395   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
396   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
397
398   cluster->backbone_ = bb;
399   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
400 }
401
402 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
403 {
404   std::vector<int> *radicals = explodesRadical(cabinet->radical);
405
406   for (int radical : *radicals) {
407     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
408     s_sg_platf_host_cbarg_t host;
409     memset(&host, 0, sizeof(host));
410     host.pstate           = 0;
411     host.core_amount      = 1;
412     host.id               = hostname;
413     host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
414     xbt_dynar_push(host.speed_per_pstate,&cabinet->speed);
415     sg_platf_new_host(&host);
416     xbt_dynar_free(&host.speed_per_pstate);
417
418     s_sg_platf_link_cbarg_t link;
419     memset(&link, 0, sizeof(link));
420     link.policy    = SURF_LINK_FULLDUPLEX;
421     link.latency   = cabinet->lat;
422     link.bandwidth = cabinet->bw;
423     link.id        = bprintf("link_%s",hostname);
424     sg_platf_new_link(&link);
425     free((char*)link.id);
426
427     s_sg_platf_host_link_cbarg_t host_link;
428     memset(&host_link, 0, sizeof(host_link));
429     host_link.id        = hostname;
430     host_link.link_up   = bprintf("link_%s_UP",hostname);
431     host_link.link_down = bprintf("link_%s_DOWN",hostname);
432     sg_platf_new_hostlink(&host_link);
433     free((char*)host_link.link_up);
434     free((char*)host_link.link_down);
435
436     free(hostname);
437   }
438   delete(radicals);
439 }
440
441 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
442 {
443   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
444                "Refusing to add a second storage named \"%s\"", storage->id);
445
446   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
447   xbt_assert(stype,"No storage type '%s'", storage->type_id);
448
449   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
450       storage->id,
451       storage->type_id,
452       storage->content);
453
454   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
455
456   // if storage content is not specified use the content of storage_type if any
457   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
458     storage->content = ((storage_type_t) stype)->content;
459     storage->content_type = ((storage_type_t) stype)->content_type;
460     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
461         storage->id,((storage_type_t) stype)->content_type,
462         ((storage_type_t) stype)->type_id);
463   }
464
465   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
466       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
467       "\n\t\tproperties '%p''\n",
468       storage->id,
469       ((storage_type_t) stype)->model,
470       ((storage_type_t) stype)->type_id,
471       storage->content,
472       storage->content_type,
473     storage->properties);
474
475   surf_storage_model->createStorage(storage->id,
476                                      ((storage_type_t) stype)->type_id,
477                                      storage->content,
478                                      storage->content_type,
479                    storage->properties,
480                                      storage->attach);
481 }
482 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
483
484   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
485                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
486
487   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
488   stype->model = xbt_strdup(storage_type->model);
489   stype->properties = storage_type->properties;
490   stype->content = xbt_strdup(storage_type->content);
491   stype->content_type = xbt_strdup(storage_type->content_type);
492   stype->type_id = xbt_strdup(storage_type->id);
493   stype->size = storage_type->size;
494   stype->model_properties = storage_type->model_properties;
495
496   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
497       "content '%s', and content_type '%s'",
498       stype->type_id,
499       stype->model,
500       storage_type->content,
501       storage_type->content_type);
502
503   xbt_lib_set(storage_type_lib,
504       stype->type_id,
505       ROUTING_STORAGE_TYPE_LEVEL,
506       (void *) stype);
507 }
508
509 static void mount_free(void *p)
510 {
511   mount_t mnt = (mount_t) p;
512   xbt_free(mnt->name);
513 }
514
515 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
516   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
517       "Cannot mount non-existent disk \"%s\"", mount->storageId);
518
519   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
520
521   s_mount_t mnt;
522   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
523   mnt.name = xbt_strdup(mount->name);
524
525   if(!mount_list){
526     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
527     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
528   }
529   xbt_dynar_push(mount_list, &mnt);
530 }
531
532 void sg_platf_new_route(sg_platf_route_cbarg_t route)
533 {
534   routing_get_current()->addRoute(route);
535 }
536
537 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
538 {
539   routing_get_current()->addBypassRoute(bypassRoute);
540 }
541
542 void sg_platf_new_process(sg_platf_process_cbarg_t process)
543 {
544   xbt_assert(simix_global,"Cannot create process without SIMIX.");
545
546   sg_host_t host = sg_host_by_name(process->host);
547   if (!host) {
548     // The requested host does not exist. Do a nice message to the user
549     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
550     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
551     free(tmp);
552     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
553     simgrid::s4u::Host* host;
554     unsigned int cursor;
555     xbt_dynar_foreach(all_hosts,cursor, host) {
556       xbt_strbuff_append(msg,host->name().c_str());
557       xbt_strbuff_append(msg,"', '");
558       if (msg->used > 1024) {
559         msg->data[msg->used-3]='\0';
560         msg->used -= 3;
561
562         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
563       }
564     }
565     msg->data[msg->used-3]='\0';
566     xbt_die("%s", msg->data);
567   }
568   xbt_main_func_t parse_code = SIMIX_get_registered_function(process->function);
569   xbt_assert(parse_code, "Function '%s' unknown", process->function);
570
571   double start_time = process->start_time;
572   double kill_time  = process->kill_time;
573   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
574
575   smx_process_arg_t arg = NULL;
576   smx_process_t process_created = NULL;
577
578   arg = xbt_new0(s_smx_process_arg_t, 1);
579   arg->code = parse_code;
580   arg->data = NULL;
581   arg->hostname = sg_host_get_name(host);
582   arg->argc = process->argc;
583   arg->argv = xbt_new(char *,process->argc);
584   int i;
585   for (i=0; i<process->argc; i++)
586     arg->argv[i] = xbt_strdup(process->argv[i]);
587   arg->name = xbt_strdup(arg->argv[0]);
588   arg->kill_time = kill_time;
589   arg->properties = current_property_set;
590   if (!sg_host_simix(host)->boot_processes) {
591     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
592   }
593   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
594
595   if (start_time > SIMIX_get_clock()) {
596     arg = xbt_new0(s_smx_process_arg_t, 1);
597     arg->name = (char*)(process->argv)[0];
598     arg->code = parse_code;
599     arg->data = NULL;
600     arg->hostname = sg_host_get_name(host);
601     arg->argc = process->argc;
602     arg->argv = (char**)(process->argv);
603     arg->kill_time = kill_time;
604     arg->properties = current_property_set;
605
606     XBT_DEBUG("Process %s(%s) will be started at time %f", arg->name,
607            arg->hostname, start_time);
608     SIMIX_timer_set(start_time, [](void* arg) {
609       SIMIX_process_create_from_wrapper((smx_process_arg_t) arg);
610     }, arg);
611   } else {                      // start_time <= SIMIX_get_clock()
612     XBT_DEBUG("Starting Process %s(%s) right now", arg->name, sg_host_get_name(host));
613
614     if (simix_global->create_process_function)
615       process_created = simix_global->create_process_function(
616           arg->name,
617                                             parse_code,
618                                             NULL,
619                                             sg_host_get_name(host),
620                                             kill_time,
621                                             process->argc,
622                                             (char**)(process->argv),
623                                             current_property_set,
624                                             auto_restart, NULL);
625     else
626       process_created = simcall_process_create(arg->name, parse_code, NULL, sg_host_get_name(host), kill_time, process->argc,
627           (char**)process->argv, current_property_set,auto_restart);
628
629     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
630     if (!process_created) {
631       return;
632     }
633   }
634   current_property_set = NULL;
635 }
636
637 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
638 {
639   using simgrid::surf::NetCard;
640   using simgrid::surf::AsCluster;
641
642   char *host_id = bprintf("peer_%s", peer->id);
643   char *router_id = bprintf("router_%s", peer->id);
644
645   XBT_DEBUG(" ");
646
647   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
648   s_sg_platf_AS_cbarg_t AS;
649   AS.id      = peer->id;
650   AS.routing = A_surfxml_AS_routing_Cluster;
651   sg_platf_new_AS_begin(&AS);
652
653   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
654   s_sg_platf_host_cbarg_t host;
655   memset(&host, 0, sizeof(host));
656   host.id = host_id;
657
658   host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
659   xbt_dynar_push(host.speed_per_pstate,&peer->speed);
660   host.pstate = 0;
661   host.speed_trace = peer->availability_trace;
662   host.state_trace = peer->state_trace;
663   host.core_amount = 1;
664   sg_platf_new_host(&host);
665   xbt_dynar_free(&host.speed_per_pstate);
666
667   s_sg_platf_link_cbarg_t link;
668   memset(&link, 0, sizeof(link));
669   link.policy  = SURF_LINK_SHARED;
670   link.latency = peer->lat;
671
672   char* link_up = bprintf("link_%s_UP",peer->id);
673   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
674   link.id = link_up;
675   link.bandwidth = peer->bw_out;
676   sg_platf_new_link(&link);
677
678   char* link_down = bprintf("link_%s_DOWN",peer->id);
679   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
680   link.id = link_down;
681   link.bandwidth = peer->bw_in;
682   sg_platf_new_link(&link);
683
684   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
685   s_sg_platf_host_link_cbarg_t host_link;
686   memset(&host_link, 0, sizeof(host_link));
687   host_link.id        = host_id;
688   host_link.link_up   = link_up;
689   host_link.link_down = link_down;
690   sg_platf_new_hostlink(&host_link);
691   free(link_up);
692   free(link_down);
693
694   XBT_DEBUG("<router id=\"%s\"/>", router_id);
695   s_sg_platf_router_cbarg_t router;
696   memset(&router, 0, sizeof(router));
697   router.id = router_id;
698   router.coord = peer->coord;
699   sg_platf_new_router(&router);
700   static_cast<AsCluster*>(current_routing)->router_ = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
701
702   XBT_DEBUG("</AS>");
703   sg_platf_new_AS_seal();
704   XBT_DEBUG(" ");
705
706   free(router_id);
707   free(host_id);
708 }
709
710 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
711
712 void sg_platf_end() {
713   simgrid::surf::on_postparse();
714 }
715
716 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
717 static void surf_config_models_setup()
718 {
719   const char *host_model_name;
720   const char *vm_model_name;
721   int host_id = -1;
722   int vm_id = -1;
723   char *network_model_name = NULL;
724   char *cpu_model_name = NULL;
725   int storage_id = -1;
726   char *storage_model_name = NULL;
727
728   host_model_name = xbt_cfg_get_string(_sg_cfg_set, "host/model");
729   vm_model_name = xbt_cfg_get_string(_sg_cfg_set, "vm/model");
730   network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
731   cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
732   storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
733
734   /* Check whether we use a net/cpu model differing from the default ones, in which case
735    * we should switch to the "compound" host model to correctly dispatch stuff to
736    * the right net/cpu models.
737    */
738
739   if ((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
740        !xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
741       xbt_cfg_is_default_value(_sg_cfg_set, "host/model")) {
742     host_model_name = "compound";
743     xbt_cfg_set_string(_sg_cfg_set, "host/model", host_model_name);
744   }
745
746   XBT_DEBUG("host model: %s", host_model_name);
747   host_id = find_model_description(surf_host_model_description, host_model_name);
748   if (!strcmp(host_model_name, "compound")) {
749     int network_id = -1;
750     int cpu_id = -1;
751
752     xbt_assert(cpu_model_name,
753                 "Set a cpu model to use with the 'compound' host model");
754
755     xbt_assert(network_model_name,
756                 "Set a network model to use with the 'compound' host model");
757
758     if(surf_cpu_model_init_preparse){
759       surf_cpu_model_init_preparse();
760     } else {
761       cpu_id =
762           find_model_description(surf_cpu_model_description, cpu_model_name);
763       surf_cpu_model_description[cpu_id].model_init_preparse();
764     }
765
766     network_id =
767         find_model_description(surf_network_model_description,
768                                network_model_name);
769     surf_network_model_description[network_id].model_init_preparse();
770   }
771
772   XBT_DEBUG("Call host_model_init");
773   surf_host_model_description[host_id].model_init_preparse();
774
775   XBT_DEBUG("Call vm_model_init");
776   vm_id = find_model_description(surf_vm_model_description, vm_model_name);
777   surf_vm_model_description[vm_id].model_init_preparse();
778
779   XBT_DEBUG("Call storage_model_init");
780   storage_id = find_model_description(surf_storage_model_description, storage_model_name);
781   surf_storage_model_description[storage_id].model_init_preparse();
782
783 }
784
785 /**
786  * \brief Make a new routing component to the platform
787  *
788  * Add a new autonomous system to the platform. Any elements (such as host,
789  * router or sub-AS) added after this call and before the corresponding call
790  * to sg_platf_new_AS_seal() will be added to this AS.
791  *
792  * Once this function was called, the configuration concerning the used
793  * models cannot be changed anymore.
794  *
795  * @param AS_id name of this autonomous system. Must be unique in the platform
796  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
797  */
798 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
799 {
800   if (!surf_parse_models_setup_already_called) {
801     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
802      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
803      *
804      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
805      * (FIXME: check it out by creating a file beginning with one of these tags)
806      * but cluster and peer create ASes internally, so putting the code in there is ok.
807      */
808     surf_parse_models_setup_already_called = 1;
809     surf_config_models_setup();
810   }
811
812   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, AS->id, ROUTING_ASR_LEVEL),
813       "Refusing to create a second AS called \"%s\".", AS->id);
814
815   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
816                             * any further config now that we created some real content */
817
818
819   /* search the routing model */
820   simgrid::surf::AsImpl *new_as = NULL;
821   switch(AS->routing){
822     case A_surfxml_AS_routing_Cluster:        new_as = new simgrid::surf::AsCluster(AS->id);        break;
823     case A_surfxml_AS_routing_ClusterTorus:   new_as = new simgrid::surf::AsClusterTorus(AS->id);   break;
824     case A_surfxml_AS_routing_ClusterFatTree: new_as = new simgrid::surf::AsClusterFatTree(AS->id); break;
825     case A_surfxml_AS_routing_Dijkstra:       new_as = new simgrid::surf::AsDijkstra(AS->id, 0);    break;
826     case A_surfxml_AS_routing_DijkstraCache:  new_as = new simgrid::surf::AsDijkstra(AS->id, 1);    break;
827     case A_surfxml_AS_routing_Floyd:          new_as = new simgrid::surf::AsFloyd(AS->id);          break;
828     case A_surfxml_AS_routing_Full:           new_as = new simgrid::surf::AsFull(AS->id);           break;
829     case A_surfxml_AS_routing_None:           new_as = new simgrid::surf::AsNone(AS->id);           break;
830     case A_surfxml_AS_routing_Vivaldi:        new_as = new simgrid::surf::AsVivaldi(AS->id);        break;
831     default:                                  xbt_die("Not a valid model!");                        break;
832   }
833
834   /* make a new routing component */
835   simgrid::surf::NetCard *netcard = new simgrid::surf::NetCardImpl(new_as->name(), simgrid::surf::NetCard::Type::As, current_routing);
836
837   if (current_routing == NULL && routing_platf->root_ == NULL) { /* it is the first one */
838     routing_platf->root_ = new_as;
839   } else if (current_routing != NULL && routing_platf->root_ != NULL) {
840
841     xbt_assert(!xbt_dict_get_or_null(current_routing->children(), AS->id),
842                "The AS \"%s\" already exists", AS->id);
843     /* it is a part of the tree */
844     new_as->father_ = current_routing;
845     /* set the father behavior */
846     if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
847       current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::recursive;
848     /* add to the sons dictionary */
849     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, NULL);
850   } else {
851     THROWF(arg_error, 0, "All defined components must belong to a AS");
852   }
853
854   xbt_lib_set(as_router_lib, netcard->name(), ROUTING_ASR_LEVEL, (void *) netcard);
855   XBT_DEBUG("Having set name '%s' id '%d'", new_as->name(), netcard->id());
856
857   /* set the new current component of the tree */
858   current_routing = new_as;
859   current_routing->netcard_ = netcard;
860
861   simgrid::surf::asCreatedCallbacks(new_as);
862   if (TRACE_is_enabled())
863     sg_instr_AS_begin(AS);
864
865   return new_as;
866 }
867
868 /**
869  * \brief Specify that the description of the current AS is finished
870  *
871  * Once you've declared all the content of your AS, you have to seal
872  * it with this call. Your AS is not usable until you call this function.
873  */
874 void sg_platf_new_AS_seal()
875 {
876   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
877   current_routing->seal();
878   current_routing = static_cast<simgrid::surf::AsImpl*>(current_routing->father());
879
880   if (TRACE_is_enabled())
881     sg_instr_AS_end();
882 }
883
884 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
885 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
886 {
887   simgrid::surf::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
888   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
889   xbt_assert(dynamic_cast<simgrid::surf::AsCluster*>(current_routing),
890       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
891
892   s_surf_parsing_link_up_down_t link_up_down;
893   link_up_down.link_up = Link::byName(hostlink->link_up);
894   link_up_down.link_down = Link::byName(hostlink->link_down);
895
896   xbt_assert(link_up_down.link_up, "Link '%s' not found!",hostlink->link_up);
897   xbt_assert(link_up_down.link_down, "Link '%s' not found!",hostlink->link_down);
898
899   // If dynar is is greater than netcard id and if the host_link is already defined
900   auto as_cluster = static_cast<simgrid::surf::AsCluster*>(current_routing);
901   if((int)xbt_dynar_length(as_cluster->privateLinks_) > netcard->id() &&
902       xbt_dynar_get_as(as_cluster->privateLinks_, netcard->id(), void*))
903   surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
904
905   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name(), netcard->id());
906   xbt_dynar_set_as(as_cluster->privateLinks_, netcard->id(), s_surf_parsing_link_up_down_t, link_up_down);
907 }