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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/functional.hpp>
13 #include <xbt/signal.hpp>
14 #include "src/surf/HostImpl.hpp"
15 #include "surf/surf.h"
16
17 #include "src/simix/smx_private.h"
18
19 #include "src/include/simgrid/sg_config.h"
20 #include "src/surf/xml/platf_private.hpp"
21
22 #include "src/surf/cpu_interface.hpp"
23 #include "src/surf/network_interface.hpp"
24 #include "surf/surf_routing.h" // FIXME: brain dead public header
25
26 #include "src/surf/AsImpl.hpp"
27 #include "src/surf/AsCluster.hpp"
28 #include "src/surf/AsClusterTorus.hpp"
29 #include "src/surf/AsClusterFatTree.hpp"
30 #include "src/surf/AsDijkstra.hpp"
31 #include "src/surf/AsFloyd.hpp"
32 #include "src/surf/AsFull.hpp"
33 #include "src/surf/AsNone.hpp"
34 #include "src/surf/AsVivaldi.hpp"
35
36 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
37
38 XBT_PRIVATE xbt_dynar_t mount_list = NULL;
39
40 namespace simgrid {
41 namespace surf {
42
43 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
44 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
45 simgrid::xbt::signal<void(void)> on_postparse;
46
47 }
48 }
49
50 static int surf_parse_models_setup_already_called = 0;
51
52 /* Turn something like "1-4,6,9-11" into the vector {1,2,3,4,6,9,10,11} */
53 static std::vector<int> *explodesRadical(const char*radicals){
54   std::vector<int> *exploded = new std::vector<int>();
55   char *groups;
56   unsigned int iter;
57
58   //Make all hosts
59   xbt_dynar_t radical_elements = xbt_str_split(radicals, ",");
60   xbt_dynar_foreach(radical_elements, iter, groups) {
61
62     xbt_dynar_t radical_ends = xbt_str_split(groups, "-");
63     int start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
64     int end=0;
65
66     switch (xbt_dynar_length(radical_ends)) {
67     case 1:
68       end = start;
69       break;
70     case 2:
71       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
72       break;
73     default:
74       surf_parse_error("Malformed radical: %s", groups);
75       break;
76     }
77
78     for (int i = start; i <= end; i++)
79       exploded->push_back( i );
80
81     xbt_dynar_free(&radical_ends);
82   }
83   xbt_dynar_free(&radical_elements);
84
85   return exploded;
86 }
87
88
89 /** The current AS in the parsing */
90 static simgrid::surf::AsImpl *current_routing = NULL;
91 static simgrid::surf::AsImpl* routing_get_current()
92 {
93   return current_routing;
94 }
95
96 /** Module management function: creates all internal data structures */
97 void sg_platf_init(void) {
98 }
99
100 /** Module management function: frees all internal data structures */
101 void sg_platf_exit(void) {
102   simgrid::surf::on_link.disconnect_all_slots();
103   simgrid::surf::on_cluster.disconnect_all_slots();
104   simgrid::surf::on_postparse.disconnect_all_slots();
105
106   /* make sure that we will reinit the models while loading the platf once reinited */
107   surf_parse_models_setup_already_called = 0;
108   surf_parse_lex_destroy();
109 }
110
111 /** @brief Add an "host" to the current AS */
112 void sg_platf_new_host(sg_platf_host_cbarg_t host)
113 {
114   xbt_assert(! sg_host_by_name(host->id), "Refusing to create a second host named '%s'.", host->id);
115
116   simgrid::surf::AsImpl* current_routing = routing_get_current();
117   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
118     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
119
120   simgrid::surf::NetCard *netcard =
121       new simgrid::surf::NetCardImpl(host->id, simgrid::surf::NetCard::Type::Host, current_routing);
122
123   sg_host_t h = simgrid::s4u::Host::by_name_or_create(host->id);
124   h->pimpl_netcard = netcard;
125
126   if(mount_list){
127     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
128     mount_list = NULL;
129   }
130
131   if (host->coord && strcmp(host->coord, "")) {
132     unsigned int cursor;
133     char*str;
134
135     xbt_assert(COORD_HOST_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
136     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
137     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
138     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", host->id);
139
140     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
141     xbt_dynar_foreach(ctn_str,cursor, str) {
142       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
143       xbt_dynar_push(ctn,&val);
144     }
145     xbt_dynar_free(&ctn_str);
146     xbt_dynar_shrink(ctn, 0);
147     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
148   }
149
150   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h, host->speed_per_pstate, host->core_amount);
151   if (host->state_trace)
152     cpu->setStateTrace(host->state_trace);
153   if (host->speed_trace)
154     cpu->setSpeedTrace(host->speed_trace);
155   surf_host_model->createHost(host->id, netcard, cpu)->attach(h);
156
157   if (host->properties) {
158     xbt_dict_cursor_t cursor=NULL;
159     char *key,*data;
160     xbt_dict_foreach(host->properties,cursor,key,data)
161       h->setProperty(key,data);
162     xbt_dict_free(&host->properties);
163   }
164
165   if (host->pstate != 0)
166     cpu->setPState(host->pstate);
167
168   simgrid::s4u::Host::onCreation(*h);
169
170   if (TRACE_is_enabled() && TRACE_needs_platform())
171     sg_instr_new_host(host);
172 }
173
174 /** @brief Add a "router" to the network element list */
175 void sg_platf_new_router(sg_platf_router_cbarg_t router)
176 {
177   simgrid::surf::AsImpl* current_routing = routing_get_current();
178
179   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
180     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
181   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
182              "Refusing to create a router named '%s': this name already describes a node.", router->id);
183
184   simgrid::surf::NetCard* netcard =
185     new simgrid::surf::NetCardImpl(router->id, simgrid::surf::NetCard::Type::Router, current_routing);
186   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, netcard);
187   XBT_DEBUG("Having set name '%s' id '%d'", router->id, netcard->id());
188
189   if (router->coord && strcmp(router->coord, "")) {
190     unsigned int cursor;
191     char*str;
192
193     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
194     /* Pre-parse the host coordinates */
195     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
196     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
197     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
198     xbt_dynar_foreach(ctn_str,cursor, str) {
199       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
200       xbt_dynar_push(ctn,&val);
201     }
202     xbt_dynar_free(&ctn_str);
203     xbt_dynar_shrink(ctn, 0);
204     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
205   }
206
207   if (TRACE_is_enabled() && TRACE_needs_platform())
208     sg_instr_new_router(router);
209 }
210
211 void sg_platf_new_link(sg_platf_link_cbarg_t link){
212   std::vector<char*> names;
213
214   if (link->policy == SURF_LINK_FULLDUPLEX) {
215     names.push_back(bprintf("%s_UP", link->id));
216     names.push_back(bprintf("%s_DOWN", link->id));
217   } else {
218     names.push_back(xbt_strdup(link->id));
219   }
220   for (auto link_name : names) {
221     Link *l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy, link->properties);
222
223     if (link->latency_trace)
224       l->setLatencyTrace(link->latency_trace);
225     if (link->bandwidth_trace)
226       l->setBandwidthTrace(link->bandwidth_trace);
227     if (link->state_trace)
228       l->setStateTrace(link->state_trace);
229
230     xbt_free(link_name);
231   }
232
233   simgrid::surf::on_link(link);
234 }
235
236 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
237 {
238   using simgrid::surf::AsCluster;
239   using simgrid::surf::AsClusterTorus;
240   using simgrid::surf::AsClusterFatTree;
241
242   int rankId=0;
243
244   s_sg_platf_link_cbarg_t link;
245
246   // What an inventive way of initializing the AS that I have as ancestor :-(
247   s_sg_platf_AS_cbarg_t AS;
248   AS.id = cluster->id;
249   switch (cluster->topology) {
250   case SURF_CLUSTER_TORUS:
251     AS.routing = A_surfxml_AS_routing_ClusterTorus;
252     break;
253   case SURF_CLUSTER_FAT_TREE:
254     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
255     break;
256   default:
257     AS.routing = A_surfxml_AS_routing_Cluster;
258     break;
259   }
260   sg_platf_new_AS_begin(&AS);
261   simgrid::surf::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
262   current_as->parse_specific_arguments(cluster);
263
264   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
265     current_as->linkCountPerNode_++;
266     current_as->hasLoopback_ = 1;
267   }
268
269   if(cluster->limiter_link!=0){
270     current_as->linkCountPerNode_++;
271     current_as->hasLimiter_ = 1;
272   }
273
274   std::vector<int> *radicals = explodesRadical(cluster->radical);
275   for (int i : *radicals) {
276     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
277     char * link_id = bprintf("%s_link_%d", cluster->id, i);
278
279     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
280
281     s_sg_platf_host_cbarg_t host;
282     memset(&host, 0, sizeof(host));
283     host.id = host_id;
284     if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
285       xbt_dict_cursor_t cursor=NULL;
286       char *key,*data;
287       host.properties = xbt_dict_new();
288
289       xbt_dict_foreach(cluster->properties,cursor,key,data) {
290         xbt_dict_set(host.properties, key, xbt_strdup(data),free);
291       }
292     }
293
294     host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
295     xbt_dynar_push(host.speed_per_pstate,&cluster->speed);
296     host.pstate = 0;
297     host.core_amount = cluster->core_amount;
298     host.coord = "";
299     sg_platf_new_host(&host);
300     xbt_dynar_free(&host.speed_per_pstate);
301     XBT_DEBUG("</host>");
302
303     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
304
305     s_surf_parsing_link_up_down_t info_lim, info_loop;
306     // All links are saved in a matrix;
307     // every row describes a single node; every node
308     // may have multiple links.
309     // the first column may store a link from x to x if p_has_loopback is set
310     // the second column may store a limiter link if p_has_limiter is set
311     // other columns are to store one or more link for the node
312
313     //add a loopback link
314     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
315       char *tmp_link = bprintf("%s_loopback", link_id);
316       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
317
318       memset(&link, 0, sizeof(link));
319       link.id        = tmp_link;
320       link.bandwidth = cluster->loopback_bw;
321       link.latency   = cluster->loopback_lat;
322       link.policy    = SURF_LINK_FATPIPE;
323       sg_platf_new_link(&link);
324       info_loop.linkUp = info_loop.linkDown = Link::byName(tmp_link);
325       free(tmp_link);
326       auto as_cluster = static_cast<AsCluster*>(current_as);
327       xbt_dynar_set(as_cluster->privateLinks_, rankId*as_cluster->linkCountPerNode_, &info_loop);
328     }
329
330     //add a limiter link (shared link to account for maximal bandwidth of the node)
331     if(cluster->limiter_link!=0){
332       char *tmp_link = bprintf("%s_limiter", link_id);
333       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
334
335       memset(&link, 0, sizeof(link));
336       link.id = tmp_link;
337       link.bandwidth = cluster->limiter_link;
338       link.latency = 0;
339       link.policy = SURF_LINK_SHARED;
340       sg_platf_new_link(&link);
341       info_lim.linkUp = info_lim.linkDown = Link::byName(tmp_link);
342       free(tmp_link);
343       xbt_dynar_set(current_as->privateLinks_, rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_ , &info_lim);
344     }
345
346     //call the cluster function that adds the others links
347     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
348       ((AsClusterFatTree*) current_as)->addProcessingNode(i);
349     }
350     else {
351       current_as->create_links_for_node(cluster, i, rankId,
352           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
353     }
354     xbt_free(link_id);
355     xbt_free(host_id);
356     rankId++;
357   }
358   delete radicals;
359
360   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
361   // and it's very useful to connect clusters together
362   XBT_DEBUG(" ");
363   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
364   char *newid = NULL;
365   s_sg_platf_router_cbarg_t router;
366   memset(&router, 0, sizeof(router));
367   router.id = cluster->router_id;
368   if (!router.id || !strcmp(router.id, ""))
369     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
370   sg_platf_new_router(&router);
371   current_as->router_ = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
372   free(newid);
373
374   //Make the backbone
375   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
376
377     memset(&link, 0, sizeof(link));
378     link.id        = bprintf("%s_backbone", cluster->id);
379     link.bandwidth = cluster->bb_bw;
380     link.latency   = cluster->bb_lat;
381     link.policy    = cluster->bb_sharing_policy;
382
383     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
384     sg_platf_new_link(&link);
385
386     routing_cluster_add_backbone(Link::byName(link.id));
387     free((char*)link.id);
388   }
389
390   XBT_DEBUG("</AS>");
391   sg_platf_new_AS_seal();
392
393   simgrid::surf::on_cluster(cluster);
394 }
395 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
396   simgrid::surf::AsCluster *cluster = dynamic_cast<simgrid::surf::AsCluster*>(current_routing);
397
398   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
399   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
400
401   cluster->backbone_ = bb;
402   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
403 }
404
405 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
406 {
407   std::vector<int> *radicals = explodesRadical(cabinet->radical);
408
409   for (int radical : *radicals) {
410     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
411     s_sg_platf_host_cbarg_t host;
412     memset(&host, 0, sizeof(host));
413     host.pstate           = 0;
414     host.core_amount      = 1;
415     host.id               = hostname;
416     host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
417     xbt_dynar_push(host.speed_per_pstate,&cabinet->speed);
418     sg_platf_new_host(&host);
419     xbt_dynar_free(&host.speed_per_pstate);
420
421     s_sg_platf_link_cbarg_t link;
422     memset(&link, 0, sizeof(link));
423     link.policy    = SURF_LINK_FULLDUPLEX;
424     link.latency   = cabinet->lat;
425     link.bandwidth = cabinet->bw;
426     link.id        = bprintf("link_%s",hostname);
427     sg_platf_new_link(&link);
428     free((char*)link.id);
429
430     s_sg_platf_host_link_cbarg_t host_link;
431     memset(&host_link, 0, sizeof(host_link));
432     host_link.id        = hostname;
433     host_link.link_up   = bprintf("link_%s_UP",hostname);
434     host_link.link_down = bprintf("link_%s_DOWN",hostname);
435     sg_platf_new_hostlink(&host_link);
436     free((char*)host_link.link_up);
437     free((char*)host_link.link_down);
438
439     free(hostname);
440   }
441   delete(radicals);
442 }
443
444 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
445 {
446   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
447                "Refusing to add a second storage named \"%s\"", storage->id);
448
449   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
450   xbt_assert(stype,"No storage type '%s'", storage->type_id);
451
452   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
453       storage->id,
454       storage->type_id,
455       storage->content);
456
457   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
458
459   // if storage content is not specified use the content of storage_type if any
460   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
461     storage->content = ((storage_type_t) stype)->content;
462     storage->content_type = ((storage_type_t) stype)->content_type;
463     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
464         storage->id,((storage_type_t) stype)->content_type,
465         ((storage_type_t) stype)->type_id);
466   }
467
468   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
469       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
470       "\n\t\tproperties '%p''\n",
471       storage->id,
472       ((storage_type_t) stype)->model,
473       ((storage_type_t) stype)->type_id,
474       storage->content,
475       storage->content_type,
476     storage->properties);
477
478   surf_storage_model->createStorage(storage->id,
479                                      ((storage_type_t) stype)->type_id,
480                                      storage->content,
481                                      storage->content_type,
482                    storage->properties,
483                                      storage->attach);
484 }
485 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
486
487   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
488                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
489
490   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
491   stype->model = xbt_strdup(storage_type->model);
492   stype->properties = storage_type->properties;
493   stype->content = xbt_strdup(storage_type->content);
494   stype->content_type = xbt_strdup(storage_type->content_type);
495   stype->type_id = xbt_strdup(storage_type->id);
496   stype->size = storage_type->size;
497   stype->model_properties = storage_type->model_properties;
498
499   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
500       "content '%s', and content_type '%s'",
501       stype->type_id,
502       stype->model,
503       storage_type->content,
504       storage_type->content_type);
505
506   xbt_lib_set(storage_type_lib,
507       stype->type_id,
508       ROUTING_STORAGE_TYPE_LEVEL,
509       (void *) stype);
510 }
511
512 static void mount_free(void *p)
513 {
514   mount_t mnt = (mount_t) p;
515   xbt_free(mnt->name);
516 }
517
518 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
519   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
520       "Cannot mount non-existent disk \"%s\"", mount->storageId);
521
522   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
523
524   s_mount_t mnt;
525   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
526   mnt.name = xbt_strdup(mount->name);
527
528   if(!mount_list){
529     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
530     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
531   }
532   xbt_dynar_push(mount_list, &mnt);
533 }
534
535 void sg_platf_new_route(sg_platf_route_cbarg_t route)
536 {
537   routing_get_current()->addRoute(route);
538 }
539
540 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
541 {
542   routing_get_current()->addBypassRoute(bypassRoute);
543 }
544
545 void sg_platf_new_process(sg_platf_process_cbarg_t process)
546 {
547   sg_host_t host = sg_host_by_name(process->host);
548   if (!host) {
549     // The requested host does not exist. Do a nice message to the user
550     char *tmp = bprintf("Cannot create process '%s': host '%s' does not exist\nExisting hosts: '",process->function, process->host);
551     xbt_strbuff_t msg = xbt_strbuff_new_from(tmp);
552     free(tmp);
553     xbt_dynar_t all_hosts = xbt_dynar_sort_strings(sg_hosts_as_dynar());
554     simgrid::s4u::Host* host;
555     unsigned int cursor;
556     xbt_dynar_foreach(all_hosts,cursor, host) {
557       xbt_strbuff_append(msg,host->name().c_str());
558       xbt_strbuff_append(msg,"', '");
559       if (msg->used > 1024) {
560         msg->data[msg->used-3]='\0';
561         msg->used -= 3;
562
563         xbt_strbuff_append(msg," ...(list truncated)......");// That will be shortened by 3 chars when existing the loop
564       }
565     }
566     msg->data[msg->used-3]='\0';
567     xbt_die("%s", msg->data);
568   }
569   xbt_main_func_t parse_code = SIMIX_get_registered_function(process->function);
570   xbt_assert(parse_code, "Function '%s' unknown", process->function);
571
572   double start_time = process->start_time;
573   double kill_time  = process->kill_time;
574   int auto_restart = process->on_failure == SURF_PROCESS_ON_FAILURE_DIE ? 0 : 1;
575
576   std::function<void()> code = simgrid::xbt::wrapMain(parse_code, process->argc, process->argv);
577
578   smx_process_arg_t arg = NULL;
579   smx_process_t process_created = NULL;
580
581   arg = new simgrid::simix::ProcessArg();
582   arg->name = std::string(process->argv[0]);
583   arg->code = code;
584   arg->data = NULL;
585   arg->hostname = sg_host_get_name(host);
586   arg->kill_time = kill_time;
587   arg->properties = current_property_set;
588   if (!sg_host_simix(host)->boot_processes)
589     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
590
591   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
592
593   if (start_time > SIMIX_get_clock()) {
594
595     arg = new simgrid::simix::ProcessArg();
596     arg->name = std::string(process->argv[0]);
597     arg->code = std::move(code);
598     arg->data = NULL;
599     arg->hostname = sg_host_get_name(host);
600     arg->kill_time = kill_time;
601     arg->properties = current_property_set;
602
603     XBT_DEBUG("Process %s(%s) will be started at time %f",
604       arg->name.c_str(), arg->hostname, start_time);
605     SIMIX_timer_set(start_time, [=]() {
606       simix_global->create_process_function(
607                                             arg->name.c_str(),
608                                             std::move(arg->code),
609                                             arg->data,
610                                             arg->hostname,
611                                             arg->kill_time,
612                                             arg->properties,
613                                             arg->auto_restart,
614                                             NULL);
615       delete arg;
616     });
617   } else {                      // start_time <= SIMIX_get_clock()
618     XBT_DEBUG("Starting Process %s(%s) right now",
619       arg->name.c_str(), sg_host_get_name(host));
620
621     if (simix_global->create_process_function)
622       process_created = simix_global->create_process_function(
623           arg->name.c_str(), std::move(code), NULL,
624           sg_host_get_name(host), kill_time,
625           current_property_set, auto_restart, NULL);
626     else
627       process_created = simcall_process_create(
628           arg->name.c_str(), std::move(code), NULL, sg_host_get_name(host), kill_time,
629           current_property_set,auto_restart);
630
631     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
632     if (!process_created) {
633       return;
634     }
635   }
636   current_property_set = NULL;
637 }
638
639 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
640 {
641   using simgrid::surf::NetCard;
642   using simgrid::surf::AsCluster;
643
644   char *host_id = bprintf("peer_%s", peer->id);
645   char *router_id = bprintf("router_%s", peer->id);
646
647   XBT_DEBUG(" ");
648
649   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
650   s_sg_platf_AS_cbarg_t AS;
651   AS.id      = peer->id;
652   AS.routing = A_surfxml_AS_routing_Cluster;
653   sg_platf_new_AS_begin(&AS);
654
655   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
656   s_sg_platf_host_cbarg_t host;
657   memset(&host, 0, sizeof(host));
658   host.id = host_id;
659
660   host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
661   xbt_dynar_push(host.speed_per_pstate,&peer->speed);
662   host.pstate = 0;
663   host.speed_trace = peer->availability_trace;
664   host.state_trace = peer->state_trace;
665   host.core_amount = 1;
666   sg_platf_new_host(&host);
667   xbt_dynar_free(&host.speed_per_pstate);
668
669   s_sg_platf_link_cbarg_t link;
670   memset(&link, 0, sizeof(link));
671   link.policy  = SURF_LINK_SHARED;
672   link.latency = peer->lat;
673
674   char* link_up = bprintf("link_%s_UP",peer->id);
675   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
676   link.id = link_up;
677   link.bandwidth = peer->bw_out;
678   sg_platf_new_link(&link);
679
680   char* link_down = bprintf("link_%s_DOWN",peer->id);
681   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
682   link.id = link_down;
683   link.bandwidth = peer->bw_in;
684   sg_platf_new_link(&link);
685
686   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
687   s_sg_platf_host_link_cbarg_t host_link;
688   memset(&host_link, 0, sizeof(host_link));
689   host_link.id        = host_id;
690   host_link.link_up   = link_up;
691   host_link.link_down = link_down;
692   sg_platf_new_hostlink(&host_link);
693   free(link_up);
694   free(link_down);
695
696   XBT_DEBUG("<router id=\"%s\"/>", router_id);
697   s_sg_platf_router_cbarg_t router;
698   memset(&router, 0, sizeof(router));
699   router.id = router_id;
700   router.coord = peer->coord;
701   sg_platf_new_router(&router);
702   static_cast<AsCluster*>(current_routing)->router_ = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
703
704   XBT_DEBUG("</AS>");
705   sg_platf_new_AS_seal();
706   XBT_DEBUG(" ");
707
708   free(router_id);
709   free(host_id);
710 }
711
712 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
713
714 void sg_platf_end() {
715   simgrid::surf::on_postparse();
716 }
717
718 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
719 static void surf_config_models_setup()
720 {
721   const char *host_model_name;
722   const char *vm_model_name;
723   int host_id = -1;
724   int vm_id = -1;
725   char *network_model_name = NULL;
726   char *cpu_model_name = NULL;
727   int storage_id = -1;
728   char *storage_model_name = NULL;
729
730   host_model_name    = xbt_cfg_get_string("host/model");
731   vm_model_name      = xbt_cfg_get_string("vm/model");
732   network_model_name = xbt_cfg_get_string("network/model");
733   cpu_model_name     = xbt_cfg_get_string("cpu/model");
734   storage_model_name = xbt_cfg_get_string("storage/model");
735
736   /* Check whether we use a net/cpu model differing from the default ones, in which case
737    * we should switch to the "compound" host model to correctly dispatch stuff to
738    * the right net/cpu models.
739    */
740
741   if ((!xbt_cfg_is_default_value("network/model") ||
742        !xbt_cfg_is_default_value("cpu/model")) &&
743       xbt_cfg_is_default_value("host/model")) {
744     host_model_name = "compound";
745     xbt_cfg_set_string("host/model", host_model_name);
746   }
747
748   XBT_DEBUG("host model: %s", host_model_name);
749   host_id = find_model_description(surf_host_model_description, host_model_name);
750   if (!strcmp(host_model_name, "compound")) {
751     int network_id = -1;
752     int cpu_id = -1;
753
754     xbt_assert(cpu_model_name,
755                 "Set a cpu model to use with the 'compound' host model");
756
757     xbt_assert(network_model_name,
758                 "Set a network model to use with the 'compound' host model");
759
760     if(surf_cpu_model_init_preparse){
761       surf_cpu_model_init_preparse();
762     } else {
763       cpu_id =
764           find_model_description(surf_cpu_model_description, cpu_model_name);
765       surf_cpu_model_description[cpu_id].model_init_preparse();
766     }
767
768     network_id =
769         find_model_description(surf_network_model_description,
770                                network_model_name);
771     surf_network_model_description[network_id].model_init_preparse();
772   }
773
774   XBT_DEBUG("Call host_model_init");
775   surf_host_model_description[host_id].model_init_preparse();
776
777   XBT_DEBUG("Call vm_model_init");
778   vm_id = find_model_description(surf_vm_model_description, vm_model_name);
779   surf_vm_model_description[vm_id].model_init_preparse();
780
781   XBT_DEBUG("Call storage_model_init");
782   storage_id = find_model_description(surf_storage_model_description, storage_model_name);
783   surf_storage_model_description[storage_id].model_init_preparse();
784
785 }
786
787 /**
788  * \brief Make a new routing component to the platform
789  *
790  * Add a new autonomous system to the platform. Any elements (such as host,
791  * router or sub-AS) added after this call and before the corresponding call
792  * to sg_platf_new_AS_seal() will be added to this AS.
793  *
794  * Once this function was called, the configuration concerning the used
795  * models cannot be changed anymore.
796  *
797  * @param AS the parameters defining the AS to build.
798  */
799 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
800 {
801   if (!surf_parse_models_setup_already_called) {
802     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
803      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
804      *
805      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
806      * (FIXME: check it out by creating a file beginning with one of these tags)
807      * but cluster and peer create ASes internally, so putting the code in there is ok.
808      */
809     surf_parse_models_setup_already_called = 1;
810     surf_config_models_setup();
811   }
812
813   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, AS->id, ROUTING_ASR_LEVEL),
814       "Refusing to create a second AS called \"%s\".", AS->id);
815
816   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
817                             * any further config now that we created some real content */
818
819
820   /* search the routing model */
821   simgrid::surf::AsImpl *new_as = NULL;
822   switch(AS->routing){
823     case A_surfxml_AS_routing_Cluster:        new_as = new simgrid::surf::AsCluster(AS->id);        break;
824     case A_surfxml_AS_routing_ClusterTorus:   new_as = new simgrid::surf::AsClusterTorus(AS->id);   break;
825     case A_surfxml_AS_routing_ClusterFatTree: new_as = new simgrid::surf::AsClusterFatTree(AS->id); break;
826     case A_surfxml_AS_routing_Dijkstra:       new_as = new simgrid::surf::AsDijkstra(AS->id, 0);    break;
827     case A_surfxml_AS_routing_DijkstraCache:  new_as = new simgrid::surf::AsDijkstra(AS->id, 1);    break;
828     case A_surfxml_AS_routing_Floyd:          new_as = new simgrid::surf::AsFloyd(AS->id);          break;
829     case A_surfxml_AS_routing_Full:           new_as = new simgrid::surf::AsFull(AS->id);           break;
830     case A_surfxml_AS_routing_None:           new_as = new simgrid::surf::AsNone(AS->id);           break;
831     case A_surfxml_AS_routing_Vivaldi:        new_as = new simgrid::surf::AsVivaldi(AS->id);        break;
832     default:                                  xbt_die("Not a valid model!");                        break;
833   }
834
835   /* make a new routing component */
836   simgrid::surf::NetCard *netcard = new simgrid::surf::NetCardImpl(new_as->name(), simgrid::surf::NetCard::Type::As, current_routing);
837
838   if (current_routing == NULL && routing_platf->root_ == NULL) { /* it is the first one */
839     routing_platf->root_ = new_as;
840   } else if (current_routing != NULL && routing_platf->root_ != NULL) {
841
842     xbt_assert(!xbt_dict_get_or_null(current_routing->children(), AS->id),
843                "The AS \"%s\" already exists", AS->id);
844     /* it is a part of the tree */
845     new_as->father_ = current_routing;
846     /* set the father behavior */
847     if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
848       current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::recursive;
849     /* add to the sons dictionary */
850     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, NULL);
851   } else {
852     THROWF(arg_error, 0, "All defined components must belong to a AS");
853   }
854
855   xbt_lib_set(as_router_lib, netcard->name(), ROUTING_ASR_LEVEL, (void *) netcard);
856   XBT_DEBUG("Having set name '%s' id '%d'", new_as->name(), netcard->id());
857
858   /* set the new current component of the tree */
859   current_routing = new_as;
860   current_routing->netcard_ = netcard;
861
862   simgrid::surf::asCreatedCallbacks(new_as);
863   if (TRACE_is_enabled())
864     sg_instr_AS_begin(AS);
865
866   return new_as;
867 }
868
869 /**
870  * \brief Specify that the description of the current AS is finished
871  *
872  * Once you've declared all the content of your AS, you have to seal
873  * it with this call. Your AS is not usable until you call this function.
874  */
875 void sg_platf_new_AS_seal()
876 {
877   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
878   current_routing->seal();
879   current_routing = static_cast<simgrid::surf::AsImpl*>(current_routing->father());
880
881   if (TRACE_is_enabled())
882     sg_instr_AS_end();
883 }
884
885 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
886 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
887 {
888   simgrid::surf::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
889   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
890   xbt_assert(dynamic_cast<simgrid::surf::AsCluster*>(current_routing),
891       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
892
893   s_surf_parsing_link_up_down_t link_up_down;
894   link_up_down.linkUp = Link::byName(hostlink->link_up);
895   link_up_down.linkDown = Link::byName(hostlink->link_down);
896
897   xbt_assert(link_up_down.linkUp, "Link '%s' not found!",hostlink->link_up);
898   xbt_assert(link_up_down.linkDown, "Link '%s' not found!",hostlink->link_down);
899
900   // If dynar is is greater than netcard id and if the host_link is already defined
901   auto as_cluster = static_cast<simgrid::surf::AsCluster*>(current_routing);
902   if((int)xbt_dynar_length(as_cluster->privateLinks_) > netcard->id() &&
903       xbt_dynar_get_as(as_cluster->privateLinks_, netcard->id(), void*))
904   surf_parse_error("Host_link for '%s' is already defined!",hostlink->id);
905
906   XBT_DEBUG("Push Host_link for host '%s' to position %d", netcard->name(), netcard->id());
907   xbt_dynar_set_as(as_cluster->privateLinks_, netcard->id(), s_surf_parsing_link_up_down_t, link_up_down);
908 }