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 = nullptr;
  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 = nullptr;
  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 = nullptr;
 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),nullptr);
 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=nullptr;
 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),nullptr);
 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 != nullptr) && (!xbt_dict_is_empty(cluster->properties))) {
 285       xbt_dict_cursor_t cursor=nullptr;
 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), nullptr);
 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 = nullptr;
 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), nullptr);
 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 = nullptr;
 579   smx_process_t process_created = nullptr;
 580
 581   arg = new simgrid::simix::ProcessArg();
 582   arg->name = std::string(process->argv[0]);
 583   arg->code = code;
 584   arg->data = nullptr;
 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 = nullptr;
 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                                             nullptr);
 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), nullptr,
 624           sg_host_get_name(host), kill_time,
 625           current_property_set, auto_restart, nullptr);
 626     else
 627       process_created = simcall_process_create(
 628           arg->name.c_str(), std::move(code), nullptr, 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 = nullptr;
 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), nullptr);
 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 = nullptr;
 726   char *cpu_model_name = nullptr;
 727   int storage_id = -1;
 728   char *storage_model_name = nullptr;
 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 = nullptr;
 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 == nullptr && routing_platf->root_ == nullptr) { /* it is the first one */
 839     routing_platf->root_ = new_as;
 840   } else if (current_routing != nullptr && routing_platf->root_ != nullptr) {
 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, nullptr);
 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 }