src/surf/sg_platf.cpp

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