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) == nullptr, "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("Router '%s' has the 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 may have multiple links.
 308     // the first column may store a link from x to x if p_has_loopback is set
 309     // the second column may store a limiter link if p_has_limiter is set
 310     // other columns are to store one or more link for the node
 311
 312     //add a loopback link
 313     if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 314       char *tmp_link = bprintf("%s_loopback", link_id);
 315       XBT_DEBUG("<loopback\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 316
 317       memset(&link, 0, sizeof(link));
 318       link.id        = tmp_link;
 319       link.bandwidth = cluster->loopback_bw;
 320       link.latency   = cluster->loopback_lat;
 321       link.policy    = SURF_LINK_FATPIPE;
 322       sg_platf_new_link(&link);
 323       info_loop.linkUp = info_loop.linkDown = Link::byName(tmp_link);
 324       free(tmp_link);
 325       auto as_cluster = static_cast<AsCluster*>(current_as);
 326       xbt_dynar_set(as_cluster->privateLinks_, rankId*as_cluster->linkCountPerNode_, &info_loop);
 327     }
 328
 329     //add a limiter link (shared link to account for maximal bandwidth of the node)
 330     if(cluster->limiter_link!=0){
 331       char *tmp_link = bprintf("%s_limiter", link_id);
 332       XBT_DEBUG("<limiter\tid=\"%s\"\tbw=\"%f\"/>", tmp_link, cluster->limiter_link);
 333
 334       memset(&link, 0, sizeof(link));
 335       link.id = tmp_link;
 336       link.bandwidth = cluster->limiter_link;
 337       link.latency = 0;
 338       link.policy = SURF_LINK_SHARED;
 339       sg_platf_new_link(&link);
 340       info_lim.linkUp = info_lim.linkDown = Link::byName(tmp_link);
 341       free(tmp_link);
 342       xbt_dynar_set(current_as->privateLinks_, rankId * current_as->linkCountPerNode_ + current_as->hasLoopback_ , &info_lim);
 343     }
 344
 345     //call the cluster function that adds the others links
 346     if (cluster->topology == SURF_CLUSTER_FAT_TREE) {
 347       ((AsClusterFatTree*) current_as)->addProcessingNode(i);
 348     }
 349     else {
 350       current_as->create_links_for_node(cluster, i, rankId,
 351           rankId*current_as->linkCountPerNode_ + current_as->hasLoopback_ + current_as->hasLimiter_ );
 352     }
 353     xbt_free(link_id);
 354     xbt_free(host_id);
 355     rankId++;
 356   }
 357   delete radicals;
 358
 359   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 360   // and it's very useful to connect clusters together
 361   XBT_DEBUG(" ");
 362   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 363   char *newid = nullptr;
 364   s_sg_platf_router_cbarg_t router;
 365   memset(&router, 0, sizeof(router));
 366   router.id = cluster->router_id;
 367   if (!router.id || !strcmp(router.id, ""))
 368     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 369   sg_platf_new_router(&router);
 370   current_as->router_ = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 371   free(newid);
 372
 373   //Make the backbone
 374   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 375
 376     memset(&link, 0, sizeof(link));
 377     link.id        = bprintf("%s_backbone", cluster->id);
 378     link.bandwidth = cluster->bb_bw;
 379     link.latency   = cluster->bb_lat;
 380     link.policy    = cluster->bb_sharing_policy;
 381
 382     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 383     sg_platf_new_link(&link);
 384
 385     routing_cluster_add_backbone(Link::byName(link.id));
 386     free((char*)link.id);
 387   }
 388
 389   XBT_DEBUG("</AS>");
 390   sg_platf_new_AS_seal();
 391
 392   simgrid::surf::on_cluster(cluster);
 393 }
 394 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 395   simgrid::surf::AsCluster *cluster = dynamic_cast<simgrid::surf::AsCluster*>(current_routing);
 396
 397   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 398   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 399
 400   cluster->backbone_ = bb;
 401   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 402 }
 403
 404 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 405 {
 406   std::vector<int> *radicals = explodesRadical(cabinet->radical);
 407
 408   for (int radical : *radicals) {
 409     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 410     s_sg_platf_host_cbarg_t host;
 411     memset(&host, 0, sizeof(host));
 412     host.pstate           = 0;
 413     host.core_amount      = 1;
 414     host.id               = hostname;
 415     host.speed_per_pstate = xbt_dynar_new(sizeof(double), nullptr);
 416     xbt_dynar_push(host.speed_per_pstate,&cabinet->speed);
 417     sg_platf_new_host(&host);
 418     xbt_dynar_free(&host.speed_per_pstate);
 419
 420     s_sg_platf_link_cbarg_t link;
 421     memset(&link, 0, sizeof(link));
 422     link.policy    = SURF_LINK_FULLDUPLEX;
 423     link.latency   = cabinet->lat;
 424     link.bandwidth = cabinet->bw;
 425     link.id        = bprintf("link_%s",hostname);
 426     sg_platf_new_link(&link);
 427     free((char*)link.id);
 428
 429     s_sg_platf_host_link_cbarg_t host_link;
 430     memset(&host_link, 0, sizeof(host_link));
 431     host_link.id        = hostname;
 432     host_link.link_up   = bprintf("link_%s_UP",hostname);
 433     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 434     sg_platf_new_hostlink(&host_link);
 435     free((char*)host_link.link_up);
 436     free((char*)host_link.link_down);
 437
 438     free(hostname);
 439   }
 440   delete(radicals);
 441 }
 442
 443 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 444 {
 445   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 446                "Refusing to add a second storage named \"%s\"", storage->id);
 447
 448   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 449   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 450
 451   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 452       storage->id,
 453       storage->type_id,
 454       storage->content);
 455
 456   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 457
 458   // if storage content is not specified use the content of storage_type if any
 459   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 460     storage->content = ((storage_type_t) stype)->content;
 461     storage->content_type = ((storage_type_t) stype)->content_type;
 462     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 463         storage->id,((storage_type_t) stype)->content_type,
 464         ((storage_type_t) stype)->type_id);
 465   }
 466
 467   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 468       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 469       "\n\t\tproperties '%p''\n",
 470       storage->id,
 471       ((storage_type_t) stype)->model,
 472       ((storage_type_t) stype)->type_id,
 473       storage->content,
 474       storage->content_type,
 475     storage->properties);
 476
 477   surf_storage_model->createStorage(storage->id,
 478                                      ((storage_type_t) stype)->type_id,
 479                                      storage->content,
 480                                      storage->content_type,
 481                    storage->properties,
 482                                      storage->attach);
 483 }
 484 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 485
 486   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 487                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 488
 489   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 490   stype->model = xbt_strdup(storage_type->model);
 491   stype->properties = storage_type->properties;
 492   stype->content = xbt_strdup(storage_type->content);
 493   stype->content_type = xbt_strdup(storage_type->content_type);
 494   stype->type_id = xbt_strdup(storage_type->id);
 495   stype->size = storage_type->size;
 496   stype->model_properties = storage_type->model_properties;
 497
 498   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 499       "content '%s', and content_type '%s'",
 500       stype->type_id,
 501       stype->model,
 502       storage_type->content,
 503       storage_type->content_type);
 504
 505   xbt_lib_set(storage_type_lib,
 506       stype->type_id,
 507       ROUTING_STORAGE_TYPE_LEVEL,
 508       (void *) stype);
 509 }
 510
 511 static void mount_free(void *p)
 512 {
 513   mount_t mnt = (mount_t) p;
 514   xbt_free(mnt->name);
 515 }
 516
 517 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 518   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 519       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 520
 521   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 522
 523   s_mount_t mnt;
 524   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 525   mnt.name = xbt_strdup(mount->name);
 526
 527   if(!mount_list){
 528     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 529     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 530   }
 531   xbt_dynar_push(mount_list, &mnt);
 532 }
 533
 534 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 535 {
 536   routing_get_current()->addRoute(route);
 537 }
 538
 539 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 540 {
 541   routing_get_current()->addBypassRoute(bypassRoute);
 542 }
 543
 544 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 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   std::function<void()> code = simgrid::xbt::wrapMain(parse_code, process->argc, process->argv);
 576
 577   smx_process_arg_t arg = nullptr;
 578   smx_process_t process_created = nullptr;
 579
 580   arg = new simgrid::simix::ProcessArg();
 581   arg->name = std::string(process->argv[0]);
 582   arg->code = code;
 583   arg->data = nullptr;
 584   arg->hostname = sg_host_get_name(host);
 585   arg->kill_time = kill_time;
 586   arg->properties = current_property_set;
 587   if (!sg_host_simix(host)->boot_processes)
 588     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 589
 590   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 591
 592   if (start_time > SIMIX_get_clock()) {
 593
 594     arg = new simgrid::simix::ProcessArg();
 595     arg->name = std::string(process->argv[0]);
 596     arg->code = std::move(code);
 597     arg->data = nullptr;
 598     arg->hostname = sg_host_get_name(host);
 599     arg->kill_time = kill_time;
 600     arg->properties = current_property_set;
 601
 602     XBT_DEBUG("Process %s(%s) will be started at time %f",
 603       arg->name.c_str(), arg->hostname, start_time);
 604     SIMIX_timer_set(start_time, [=]() {
 605       simix_global->create_process_function(
 606                                             arg->name.c_str(),
 607                                             std::move(arg->code),
 608                                             arg->data,
 609                                             arg->hostname,
 610                                             arg->kill_time,
 611                                             arg->properties,
 612                                             arg->auto_restart,
 613                                             nullptr);
 614       delete arg;
 615     });
 616   } else {                      // start_time <= SIMIX_get_clock()
 617     XBT_DEBUG("Starting Process %s(%s) right now",
 618       arg->name.c_str(), sg_host_get_name(host));
 619
 620     if (simix_global->create_process_function)
 621       process_created = simix_global->create_process_function(
 622           arg->name.c_str(), std::move(code), nullptr,
 623           sg_host_get_name(host), kill_time,
 624           current_property_set, auto_restart, nullptr);
 625     else
 626       process_created = simcall_process_create(
 627           arg->name.c_str(), std::move(code), nullptr, sg_host_get_name(host), kill_time,
 628           current_property_set,auto_restart);
 629
 630     /* verify if process has been created (won't be the case if the host is currently dead, but that's fine) */
 631     if (!process_created) {
 632       return;
 633     }
 634   }
 635   current_property_set = nullptr;
 636 }
 637
 638 void sg_platf_new_peer(sg_platf_peer_cbarg_t peer)
 639 {
 640   using simgrid::surf::NetCard;
 641   using simgrid::surf::AsCluster;
 642
 643   char *host_id = bprintf("peer_%s", peer->id);
 644   char *router_id = bprintf("router_%s", peer->id);
 645
 646   XBT_DEBUG(" ");
 647
 648   XBT_DEBUG("<AS id=\"%s\"\trouting=\"Cluster\">", peer->id);
 649   s_sg_platf_AS_cbarg_t AS;
 650   AS.id      = peer->id;
 651   AS.routing = A_surfxml_AS_routing_Cluster;
 652   sg_platf_new_AS_begin(&AS);
 653
 654   XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\"/>", host_id, peer->speed);
 655   s_sg_platf_host_cbarg_t host;
 656   memset(&host, 0, sizeof(host));
 657   host.id = host_id;
 658
 659   host.speed_per_pstate = xbt_dynar_new(sizeof(double), nullptr);
 660   xbt_dynar_push(host.speed_per_pstate,&peer->speed);
 661   host.pstate = 0;
 662   host.speed_trace = peer->availability_trace;
 663   host.state_trace = peer->state_trace;
 664   host.core_amount = 1;
 665   sg_platf_new_host(&host);
 666   xbt_dynar_free(&host.speed_per_pstate);
 667
 668   s_sg_platf_link_cbarg_t link;
 669   memset(&link, 0, sizeof(link));
 670   link.policy  = SURF_LINK_SHARED;
 671   link.latency = peer->lat;
 672
 673   char* link_up = bprintf("link_%s_UP",peer->id);
 674   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_up, peer->bw_out, peer->lat);
 675   link.id = link_up;
 676   link.bandwidth = peer->bw_out;
 677   sg_platf_new_link(&link);
 678
 679   char* link_down = bprintf("link_%s_DOWN",peer->id);
 680   XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_down, peer->bw_in, peer->lat);
 681   link.id = link_down;
 682   link.bandwidth = peer->bw_in;
 683   sg_platf_new_link(&link);
 684
 685   XBT_DEBUG("<host_link\tid=\"%s\"\tup=\"%s\"\tdown=\"%s\" />", host_id,link_up,link_down);
 686   s_sg_platf_host_link_cbarg_t host_link;
 687   memset(&host_link, 0, sizeof(host_link));
 688   host_link.id        = host_id;
 689   host_link.link_up   = link_up;
 690   host_link.link_down = link_down;
 691   sg_platf_new_hostlink(&host_link);
 692   free(link_up);
 693   free(link_down);
 694
 695   XBT_DEBUG("<router id=\"%s\"/>", router_id);
 696   s_sg_platf_router_cbarg_t router;
 697   memset(&router, 0, sizeof(router));
 698   router.id = router_id;
 699   router.coord = peer->coord;
 700   sg_platf_new_router(&router);
 701   static_cast<AsCluster*>(current_routing)->router_ = static_cast<NetCard*>(xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL));
 702
 703   XBT_DEBUG("</AS>");
 704   sg_platf_new_AS_seal();
 705   XBT_DEBUG(" ");
 706
 707   free(router_id);
 708   free(host_id);
 709 }
 710
 711 void sg_platf_begin() { /* Do nothing: just for symmetry of user code */ }
 712
 713 void sg_platf_end() {
 714   simgrid::surf::on_postparse();
 715 }
 716
 717 /* Pick the right models for CPU, net and host, and call their model_init_preparse */
 718 static void surf_config_models_setup()
 719 {
 720   const char *host_model_name;
 721   const char *vm_model_name;
 722   int host_id = -1;
 723   int vm_id = -1;
 724   char *network_model_name = nullptr;
 725   char *cpu_model_name = nullptr;
 726   int storage_id = -1;
 727   char *storage_model_name = nullptr;
 728
 729   host_model_name    = xbt_cfg_get_string("host/model");
 730   vm_model_name      = xbt_cfg_get_string("vm/model");
 731   network_model_name = xbt_cfg_get_string("network/model");
 732   cpu_model_name     = xbt_cfg_get_string("cpu/model");
 733   storage_model_name = xbt_cfg_get_string("storage/model");
 734
 735   /* Check whether we use a net/cpu model differing from the default ones, in which case
 736    * we should switch to the "compound" host model to correctly dispatch stuff to
 737    * the right net/cpu models.
 738    */
 739
 740   if ((!xbt_cfg_is_default_value("network/model") ||
 741        !xbt_cfg_is_default_value("cpu/model")) &&
 742       xbt_cfg_is_default_value("host/model")) {
 743     host_model_name = "compound";
 744     xbt_cfg_set_string("host/model", host_model_name);
 745   }
 746
 747   XBT_DEBUG("host model: %s", host_model_name);
 748   host_id = find_model_description(surf_host_model_description, host_model_name);
 749   if (!strcmp(host_model_name, "compound")) {
 750     int network_id = -1;
 751     int cpu_id = -1;
 752
 753     xbt_assert(cpu_model_name,
 754                 "Set a cpu model to use with the 'compound' host model");
 755
 756     xbt_assert(network_model_name,
 757                 "Set a network model to use with the 'compound' host model");
 758
 759     if(surf_cpu_model_init_preparse){
 760       surf_cpu_model_init_preparse();
 761     } else {
 762       cpu_id =
 763           find_model_description(surf_cpu_model_description, cpu_model_name);
 764       surf_cpu_model_description[cpu_id].model_init_preparse();
 765     }
 766
 767     network_id =
 768         find_model_description(surf_network_model_description,
 769                                network_model_name);
 770     surf_network_model_description[network_id].model_init_preparse();
 771   }
 772
 773   XBT_DEBUG("Call host_model_init");
 774   surf_host_model_description[host_id].model_init_preparse();
 775
 776   XBT_DEBUG("Call vm_model_init");
 777   vm_id = find_model_description(surf_vm_model_description, vm_model_name);
 778   surf_vm_model_description[vm_id].model_init_preparse();
 779
 780   XBT_DEBUG("Call storage_model_init");
 781   storage_id = find_model_description(surf_storage_model_description, storage_model_name);
 782   surf_storage_model_description[storage_id].model_init_preparse();
 783
 784 }
 785
 786 /**
 787  * \brief Make a new routing component to the platform
 788  *
 789  * Add a new autonomous system to the platform. Any elements (such as host,
 790  * router or sub-AS) added after this call and before the corresponding call
 791  * to sg_platf_new_AS_seal() will be added to this AS.
 792  *
 793  * Once this function was called, the configuration concerning the used
 794  * models cannot be changed anymore.
 795  *
 796  * @param AS the parameters defining the AS to build.
 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 = nullptr;
 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 == nullptr && routing_platf->root_ == nullptr) { /* it is the first one */
 838     routing_platf->root_ = new_as;
 839   } else if (current_routing != nullptr && routing_platf->root_ != nullptr) {
 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, nullptr);
 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.linkUp = Link::byName(hostlink->link_up);
 894   link_up_down.linkDown = Link::byName(hostlink->link_down);
 895
 896   xbt_assert(link_up_down.linkUp, "Link '%s' not found!",hostlink->link_up);
 897   xbt_assert(link_up_down.linkDown, "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 }