src/surf/sg_platf.cpp

   1 /* Copyright (c) 2006-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "xbt/misc.h"
   8 #include "xbt/log.h"
   9 #include "xbt/str.h"
  10 #include "xbt/dict.h"
  11 #include "xbt/RngStream.h"
  12 #include <xbt/signal.hpp>
  13 #include "src/surf/HostImpl.hpp"
  14 #include "surf/surf.h"
  15
  16 #include "src/simix/smx_private.h"
  17
  18 #include "src/include/simgrid/sg_config.h"
  19 #include "src/surf/xml/platf_private.hpp"
  20
  21 #include "src/surf/cpu_interface.hpp"
  22 #include "src/surf/network_interface.hpp"
  23 #include "surf/surf_routing.h" // FIXME: brain dead public header
  24
  25 #include "src/surf/AsImpl.hpp"
  26 #include "src/surf/AsCluster.hpp"
  27 #include "src/surf/AsClusterTorus.hpp"
  28 #include "src/surf/AsClusterFatTree.hpp"
  29 #include "src/surf/AsDijkstra.hpp"
  30 #include "src/surf/AsFloyd.hpp"
  31 #include "src/surf/AsFull.hpp"
  32 #include "src/surf/AsNone.hpp"
  33 #include "src/surf/AsVivaldi.hpp"
  34
  35 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_parse);
  36
  37 XBT_PRIVATE xbt_dynar_t mount_list = NULL;
  38
  39 namespace simgrid {
  40 namespace surf {
  41
  42 simgrid::xbt::signal<void(sg_platf_link_cbarg_t)> on_link;
  43 simgrid::xbt::signal<void(sg_platf_cluster_cbarg_t)> on_cluster;
  44 simgrid::xbt::signal<void(void)> on_postparse;
  45
  46 }
  47 }
  48
  49 static int surf_parse_models_setup_already_called = 0;
  50
  51 /* Turn something like "1-4,6,9-11" into the vector {1,2,3,4,6,9,10,11} */
  52 static std::vector<int> *explodesRadical(const char*radicals){
  53   std::vector<int> *exploded = new std::vector<int>();
  54   char *groups;
  55   unsigned int iter;
  56
  57   //Make all hosts
  58   xbt_dynar_t radical_elements = xbt_str_split(radicals, ",");
  59   xbt_dynar_foreach(radical_elements, iter, groups) {
  60
  61     xbt_dynar_t radical_ends = xbt_str_split(groups, "-");
  62     int start = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 0, char *));
  63     int end=0;
  64
  65     switch (xbt_dynar_length(radical_ends)) {
  66     case 1:
  67       end = start;
  68       break;
  69     case 2:
  70       end = surf_parse_get_int(xbt_dynar_get_as(radical_ends, 1, char *));
  71       break;
  72     default:
  73       surf_parse_error("Malformed radical: %s", groups);
  74       break;
  75     }
  76
  77     for (int i = start; i <= end; i++)
  78       exploded->push_back( i );
  79
  80     xbt_dynar_free(&radical_ends);
  81   }
  82   xbt_dynar_free(&radical_elements);
  83
  84   return exploded;
  85 }
  86
  87
  88 /** The current AS in the parsing */
  89 static simgrid::surf::AsImpl *current_routing = NULL;
  90 static simgrid::surf::AsImpl* routing_get_current()
  91 {
  92   return current_routing;
  93 }
  94
  95 /** Module management function: creates all internal data structures */
  96 void sg_platf_init(void) {
  97 }
  98
  99 /** Module management function: frees all internal data structures */
 100 void sg_platf_exit(void) {
 101   simgrid::surf::on_link.disconnect_all_slots();
 102   simgrid::surf::on_cluster.disconnect_all_slots();
 103   simgrid::surf::on_postparse.disconnect_all_slots();
 104
 105   /* make sure that we will reinit the models while loading the platf once reinited */
 106   surf_parse_models_setup_already_called = 0;
 107   surf_parse_lex_destroy();
 108 }
 109
 110 /** @brief Add an "host" to the current AS */
 111 void sg_platf_new_host(sg_platf_host_cbarg_t host)
 112 {
 113   xbt_assert(! sg_host_by_name(host->id), "Refusing to create a second host named '%s'.", host->id);
 114
 115   simgrid::surf::AsImpl* current_routing = routing_get_current();
 116   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
 117     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
 118
 119   simgrid::surf::NetCard *netcard =
 120       new simgrid::surf::NetCardImpl(host->id, simgrid::surf::NetCard::Type::Host, current_routing);
 121
 122   sg_host_t h = simgrid::s4u::Host::by_name_or_create(host->id);
 123   h->pimpl_netcard = netcard;
 124
 125   if(mount_list){
 126     xbt_lib_set(storage_lib, host->id, ROUTING_STORAGE_HOST_LEVEL, (void *) mount_list);
 127     mount_list = NULL;
 128   }
 129
 130   if (host->coord && strcmp(host->coord, "")) {
 131     unsigned int cursor;
 132     char*str;
 133
 134     xbt_assert(COORD_HOST_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 135     /* Pre-parse the host coordinates -- FIXME factorize with routers by overloading the routing->parse_PU function*/
 136     xbt_dynar_t ctn_str = xbt_str_split_str(host->coord, " ");
 137     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", host->id);
 138
 139     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 140     xbt_dynar_foreach(ctn_str,cursor, str) {
 141       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 142       xbt_dynar_push(ctn,&val);
 143     }
 144     xbt_dynar_free(&ctn_str);
 145     xbt_dynar_shrink(ctn, 0);
 146     h->extension_set(COORD_HOST_LEVEL, (void *) ctn);
 147   }
 148
 149   simgrid::surf::Cpu *cpu = surf_cpu_model_pm->createCpu( h, host->speed_per_pstate, host->core_amount);
 150   if (host->state_trace)
 151     cpu->setStateTrace(host->state_trace);
 152   if (host->speed_trace)
 153     cpu->setSpeedTrace(host->speed_trace);
 154   surf_host_model->createHost(host->id, netcard, cpu)->attach(h);
 155
 156   if (host->properties) {
 157     xbt_dict_cursor_t cursor=NULL;
 158     char *key,*data;
 159     xbt_dict_foreach(host->properties,cursor,key,data)
 160       h->setProperty(key,data);
 161     xbt_dict_free(&host->properties);
 162   }
 163
 164   if (host->pstate != 0)
 165     cpu->setPState(host->pstate);
 166
 167   simgrid::s4u::Host::onCreation(*h);
 168
 169   if (TRACE_is_enabled() && TRACE_needs_platform())
 170     sg_instr_new_host(host);
 171 }
 172
 173 /** @brief Add a "router" to the network element list */
 174 void sg_platf_new_router(sg_platf_router_cbarg_t router)
 175 {
 176   simgrid::surf::AsImpl* current_routing = routing_get_current();
 177
 178   if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
 179     current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::base;
 180   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
 181              "Refusing to create a router named '%s': this name already describes a node.", router->id);
 182
 183   simgrid::surf::NetCard *netcard =
 184     new simgrid::surf::NetCardImpl(router->id, simgrid::surf::NetCard::Type::Router, current_routing);
 185   xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) netcard);
 186   XBT_DEBUG("Having set name '%s' id '%d'", router->id, netcard->id());
 187
 188   if (router->coord && strcmp(router->coord, "")) {
 189     unsigned int cursor;
 190     char*str;
 191
 192     xbt_assert(COORD_ASR_LEVEL, "To use host coordinates, please add --cfg=network/coordinates:yes to your command line");
 193     /* Pre-parse the host coordinates */
 194     xbt_dynar_t ctn_str = xbt_str_split_str(router->coord, " ");
 195     xbt_assert(xbt_dynar_length(ctn_str)==3,"Coordinates of %s must have 3 dimensions", router->id);
 196     xbt_dynar_t ctn = xbt_dynar_new(sizeof(double),NULL);
 197     xbt_dynar_foreach(ctn_str,cursor, str) {
 198       double val = xbt_str_parse_double(str, "Invalid coordinate: %s");
 199       xbt_dynar_push(ctn,&val);
 200     }
 201     xbt_dynar_free(&ctn_str);
 202     xbt_dynar_shrink(ctn, 0);
 203     xbt_lib_set(as_router_lib, router->id, COORD_ASR_LEVEL, (void *) ctn);
 204   }
 205
 206   if (TRACE_is_enabled() && TRACE_needs_platform())
 207     sg_instr_new_router(router);
 208 }
 209
 210 void sg_platf_new_link(sg_platf_link_cbarg_t link){
 211   std::vector<char*> names;
 212
 213   if (link->policy == SURF_LINK_FULLDUPLEX) {
 214     names.push_back(bprintf("%s_UP", link->id));
 215     names.push_back(bprintf("%s_DOWN", link->id));
 216   } else {
 217     names.push_back(xbt_strdup(link->id));
 218   }
 219   for (auto link_name : names) {
 220     Link *l = surf_network_model->createLink(link_name, link->bandwidth, link->latency, link->policy, link->properties);
 221
 222     if (link->latency_trace)
 223       l->setLatencyTrace(link->latency_trace);
 224     if (link->bandwidth_trace)
 225       l->setBandwidthTrace(link->bandwidth_trace);
 226     if (link->state_trace)
 227       l->setStateTrace(link->state_trace);
 228
 229     xbt_free(link_name);
 230   }
 231
 232   simgrid::surf::on_link(link);
 233 }
 234
 235 void sg_platf_new_cluster(sg_platf_cluster_cbarg_t cluster)
 236 {
 237   using simgrid::surf::AsCluster;
 238   using simgrid::surf::AsClusterTorus;
 239   using simgrid::surf::AsClusterFatTree;
 240
 241   int rankId=0;
 242
 243   s_sg_platf_link_cbarg_t link;
 244
 245   // What an inventive way of initializing the AS that I have as ancestor :-(
 246   s_sg_platf_AS_cbarg_t AS;
 247   AS.id = cluster->id;
 248   switch (cluster->topology) {
 249   case SURF_CLUSTER_TORUS:
 250     AS.routing = A_surfxml_AS_routing_ClusterTorus;
 251     break;
 252   case SURF_CLUSTER_FAT_TREE:
 253     AS.routing = A_surfxml_AS_routing_ClusterFatTree;
 254     break;
 255   default:
 256     AS.routing = A_surfxml_AS_routing_Cluster;
 257     break;
 258   }
 259   sg_platf_new_AS_begin(&AS);
 260   simgrid::surf::AsCluster *current_as = static_cast<AsCluster*>(routing_get_current());
 261   current_as->parse_specific_arguments(cluster);
 262
 263   if(cluster->loopback_bw!=0 || cluster->loopback_lat!=0){
 264     current_as->nb_links_per_node_++;
 265     current_as->has_loopback_ = 1;
 266   }
 267
 268   if(cluster->limiter_link!=0){
 269     current_as->nb_links_per_node_++;
 270     current_as->has_limiter_ = 1;
 271   }
 272
 273   std::vector<int> *radicals = explodesRadical(cluster->radical);
 274   for (int i : *radicals) {
 275     char * host_id = bprintf("%s%d%s", cluster->prefix, i, cluster->suffix);
 276     char * link_id = bprintf("%s_link_%d", cluster->id, i);
 277
 278     XBT_DEBUG("<host\tid=\"%s\"\tpower=\"%f\">", host_id, cluster->speed);
 279
 280     s_sg_platf_host_cbarg_t host;
 281     memset(&host, 0, sizeof(host));
 282     host.id = host_id;
 283     if ((cluster->properties != NULL) && (!xbt_dict_is_empty(cluster->properties))) {
 284       xbt_dict_cursor_t cursor=NULL;
 285       char *key,*data;
 286       host.properties = xbt_dict_new();
 287
 288       xbt_dict_foreach(cluster->properties,cursor,key,data) {
 289         xbt_dict_set(host.properties, key, xbt_strdup(data),free);
 290       }
 291     }
 292
 293     host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
 294     xbt_dynar_push(host.speed_per_pstate,&cluster->speed);
 295     host.pstate = 0;
 296     host.core_amount = cluster->core_amount;
 297     host.coord = "";
 298     sg_platf_new_host(&host);
 299     xbt_dynar_free(&host.speed_per_pstate);
 300     XBT_DEBUG("</host>");
 301
 302     XBT_DEBUG("<link\tid=\"%s\"\tbw=\"%f\"\tlat=\"%f\"/>", link_id, cluster->bw, cluster->lat);
 303
 304     s_surf_parsing_link_up_down_t info_lim, info_loop;
 305     // All links are saved in a matrix;
 306     // every row describes a single node; every node
 307     // 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.link_up = info_loop.link_down = 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->nb_links_per_node_, &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.link_up = info_lim.link_down = Link::byName(tmp_link);
 341       free(tmp_link);
 342       xbt_dynar_set(current_as->privateLinks_, rankId * current_as->nb_links_per_node_ + current_as->has_loopback_ , &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->nb_links_per_node_ + current_as->has_loopback_ + current_as->has_limiter_ );
 352     }
 353     xbt_free(link_id);
 354     xbt_free(host_id);
 355     rankId++;
 356   }
 357
 358   // Add a router. It is magically used thanks to the way in which surf_routing_cluster is written,
 359   // and it's very useful to connect clusters together
 360   XBT_DEBUG(" ");
 361   XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id);
 362   char *newid = NULL;
 363   s_sg_platf_router_cbarg_t router;
 364   memset(&router, 0, sizeof(router));
 365   router.id = cluster->router_id;
 366   if (!router.id || !strcmp(router.id, ""))
 367     router.id = newid = bprintf("%s%s_router%s", cluster->prefix, cluster->id, cluster->suffix);
 368   sg_platf_new_router(&router);
 369   current_as->router_ = (simgrid::surf::NetCard*) xbt_lib_get_or_null(as_router_lib, router.id, ROUTING_ASR_LEVEL);
 370   free(newid);
 371
 372   //Make the backbone
 373   if ((cluster->bb_bw != 0) || (cluster->bb_lat != 0)) {
 374
 375     memset(&link, 0, sizeof(link));
 376     link.id        = bprintf("%s_backbone", cluster->id);
 377     link.bandwidth = cluster->bb_bw;
 378     link.latency   = cluster->bb_lat;
 379     link.policy    = cluster->bb_sharing_policy;
 380
 381     XBT_DEBUG("<link\tid=\"%s\" bw=\"%f\" lat=\"%f\"/>", link.id, cluster->bb_bw, cluster->bb_lat);
 382     sg_platf_new_link(&link);
 383
 384     routing_cluster_add_backbone(Link::byName(link.id));
 385     free((char*)link.id);
 386   }
 387
 388   XBT_DEBUG("</AS>");
 389   sg_platf_new_AS_seal();
 390
 391   simgrid::surf::on_cluster(cluster);
 392 }
 393 void routing_cluster_add_backbone(simgrid::surf::Link* bb) {
 394   simgrid::surf::AsCluster *cluster = dynamic_cast<simgrid::surf::AsCluster*>(current_routing);
 395
 396   xbt_assert(cluster, "Only hosts from Cluster can get a backbone.");
 397   xbt_assert(nullptr == cluster->backbone_, "Cluster %s already has a backbone link!", cluster->name());
 398
 399   cluster->backbone_ = bb;
 400   XBT_DEBUG("Add a backbone to AS '%s'", current_routing->name());
 401 }
 402
 403 void sg_platf_new_cabinet(sg_platf_cabinet_cbarg_t cabinet)
 404 {
 405   std::vector<int> *radicals = explodesRadical(cabinet->radical);
 406
 407   for (int radical : *radicals) {
 408     char *hostname = bprintf("%s%d%s", cabinet->prefix, radical, cabinet->suffix);
 409     s_sg_platf_host_cbarg_t host;
 410     memset(&host, 0, sizeof(host));
 411     host.pstate           = 0;
 412     host.core_amount      = 1;
 413     host.id               = hostname;
 414     host.speed_per_pstate = xbt_dynar_new(sizeof(double), NULL);
 415     xbt_dynar_push(host.speed_per_pstate,&cabinet->speed);
 416     sg_platf_new_host(&host);
 417     xbt_dynar_free(&host.speed_per_pstate);
 418
 419     s_sg_platf_link_cbarg_t link;
 420     memset(&link, 0, sizeof(link));
 421     link.policy    = SURF_LINK_FULLDUPLEX;
 422     link.latency   = cabinet->lat;
 423     link.bandwidth = cabinet->bw;
 424     link.id        = bprintf("link_%s",hostname);
 425     sg_platf_new_link(&link);
 426     free((char*)link.id);
 427
 428     s_sg_platf_host_link_cbarg_t host_link;
 429     memset(&host_link, 0, sizeof(host_link));
 430     host_link.id        = hostname;
 431     host_link.link_up   = bprintf("link_%s_UP",hostname);
 432     host_link.link_down = bprintf("link_%s_DOWN",hostname);
 433     sg_platf_new_hostlink(&host_link);
 434     free((char*)host_link.link_up);
 435     free((char*)host_link.link_down);
 436
 437     free(hostname);
 438   }
 439   delete(radicals);
 440 }
 441
 442 void sg_platf_new_storage(sg_platf_storage_cbarg_t storage)
 443 {
 444   xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
 445                "Refusing to add a second storage named \"%s\"", storage->id);
 446
 447   void* stype = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
 448   xbt_assert(stype,"No storage type '%s'", storage->type_id);
 449
 450   XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
 451       storage->id,
 452       storage->type_id,
 453       storage->content);
 454
 455   xbt_lib_set(storage_lib, storage->id, ROUTING_STORAGE_LEVEL, (void *) xbt_strdup(storage->type_id));
 456
 457   // if storage content is not specified use the content of storage_type if any
 458   if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
 459     storage->content = ((storage_type_t) stype)->content;
 460     storage->content_type = ((storage_type_t) stype)->content_type;
 461     XBT_DEBUG("For disk '%s' content is empty, inherit the content (of type %s) from storage type '%s' ",
 462         storage->id,((storage_type_t) stype)->content_type,
 463         ((storage_type_t) stype)->type_id);
 464   }
 465
 466   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' "
 467       "\n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tcontent_type '%s' "
 468       "\n\t\tproperties '%p''\n",
 469       storage->id,
 470       ((storage_type_t) stype)->model,
 471       ((storage_type_t) stype)->type_id,
 472       storage->content,
 473       storage->content_type,
 474     storage->properties);
 475
 476   surf_storage_model->createStorage(storage->id,
 477                                      ((storage_type_t) stype)->type_id,
 478                                      storage->content,
 479                                      storage->content_type,
 480                    storage->properties,
 481                                      storage->attach);
 482 }
 483 void sg_platf_new_storage_type(sg_platf_storage_type_cbarg_t storage_type){
 484
 485   xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
 486                "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
 487
 488   storage_type_t stype = xbt_new0(s_storage_type_t, 1);
 489   stype->model = xbt_strdup(storage_type->model);
 490   stype->properties = storage_type->properties;
 491   stype->content = xbt_strdup(storage_type->content);
 492   stype->content_type = xbt_strdup(storage_type->content_type);
 493   stype->type_id = xbt_strdup(storage_type->id);
 494   stype->size = storage_type->size;
 495   stype->model_properties = storage_type->model_properties;
 496
 497   XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s', "
 498       "content '%s', and content_type '%s'",
 499       stype->type_id,
 500       stype->model,
 501       storage_type->content,
 502       storage_type->content_type);
 503
 504   xbt_lib_set(storage_type_lib,
 505       stype->type_id,
 506       ROUTING_STORAGE_TYPE_LEVEL,
 507       (void *) stype);
 508 }
 509
 510 static void mount_free(void *p)
 511 {
 512   mount_t mnt = (mount_t) p;
 513   xbt_free(mnt->name);
 514 }
 515
 516 void sg_platf_new_mount(sg_platf_mount_cbarg_t mount){
 517   xbt_assert(xbt_lib_get_or_null(storage_lib, mount->storageId, ROUTING_STORAGE_LEVEL),
 518       "Cannot mount non-existent disk \"%s\"", mount->storageId);
 519
 520   XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->storageId, mount->name);
 521
 522   s_mount_t mnt;
 523   mnt.storage = surf_storage_resource_priv(surf_storage_resource_by_name(mount->storageId));
 524   mnt.name = xbt_strdup(mount->name);
 525
 526   if(!mount_list){
 527     XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
 528     mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
 529   }
 530   xbt_dynar_push(mount_list, &mnt);
 531 }
 532
 533 void sg_platf_new_route(sg_platf_route_cbarg_t route)
 534 {
 535   routing_get_current()->addRoute(route);
 536 }
 537
 538 void sg_platf_new_bypassRoute(sg_platf_route_cbarg_t bypassRoute)
 539 {
 540   routing_get_current()->addBypassRoute(bypassRoute);
 541 }
 542
 543 void sg_platf_new_process(sg_platf_process_cbarg_t process)
 544 {
 545   xbt_assert(simix_global,"Cannot create process without SIMIX.");
 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   smx_process_arg_t arg = NULL;
 577   smx_process_t process_created = NULL;
 578
 579   arg = xbt_new0(s_smx_process_arg_t, 1);
 580   arg->code = parse_code;
 581   arg->data = NULL;
 582   arg->hostname = sg_host_get_name(host);
 583   arg->argc = process->argc;
 584   arg->argv = xbt_new(char *,process->argc);
 585   int i;
 586   for (i=0; i<process->argc; i++)
 587     arg->argv[i] = xbt_strdup(process->argv[i]);
 588   arg->name = xbt_strdup(arg->argv[0]);
 589   arg->kill_time = kill_time;
 590   arg->properties = current_property_set;
 591   if (!sg_host_simix(host)->boot_processes) {
 592     sg_host_simix(host)->boot_processes = xbt_dynar_new(sizeof(smx_process_arg_t), _SIMIX_host_free_process_arg);
 593   }
 594   xbt_dynar_push_as(sg_host_simix(host)->boot_processes,smx_process_arg_t,arg);
 595
 596   if (start_time > SIMIX_get_clock()) {
 597     arg = xbt_new0(s_smx_process_arg_t, 1);
 598     arg->name = (char*)(process->argv)[0];
 599     arg->code = parse_code;
 600     arg->data = NULL;
 601     arg->hostname = sg_host_get_name(host);
 602     arg->argc = process->argc;
 603     arg->argv = (char**)(process->argv);
 604     arg->kill_time = kill_time;
 605     arg->properties = current_property_set;
 606
 607     XBT_DEBUG("Process %s(%s) will be started at time %f", arg->name,
 608            arg->hostname, start_time);
 609     SIMIX_timer_set(start_time, [](void* arg) {
 610       SIMIX_process_create_from_wrapper((smx_process_arg_t) arg);
 611     }, arg);
 612   } else {                      // start_time <= SIMIX_get_clock()
 613     XBT_DEBUG("Starting Process %s(%s) right now", arg->name, sg_host_get_name(host));
 614
 615     if (simix_global->create_process_function)
 616       process_created = simix_global->create_process_function(
 617           arg->name,
 618                                             parse_code,
 619                                             NULL,
 620                                             sg_host_get_name(host),
 621                                             kill_time,
 622                                             process->argc,
 623                                             (char**)(process->argv),
 624                                             current_property_set,
 625                                             auto_restart, NULL);
 626     else
 627       process_created = simcall_process_create(arg->name, parse_code, NULL, sg_host_get_name(host), kill_time, process->argc,
 628           (char**)process->argv, 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 = NULL;
 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), NULL);
 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 = NULL;
 725   char *cpu_model_name = NULL;
 726   int storage_id = -1;
 727   char *storage_model_name = NULL;
 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_id name of this autonomous system. Must be unique in the platform
 797  * @param wanted_routing_type one of Full, Floyd, Dijkstra or similar. Full list in the variable routing_models, in src/surf/surf_routing.c
 798  */
 799 simgrid::s4u::As * sg_platf_new_AS_begin(sg_platf_AS_cbarg_t AS)
 800 {
 801   if (!surf_parse_models_setup_already_called) {
 802     /* Initialize the surf models. That must be done after we got all config, and before we need the models.
 803      * That is, after the last <config> tag, if any, and before the first of cluster|peer|AS|trace|trace_connect
 804      *
 805      * I'm not sure for <trace> and <trace_connect>, there may be a bug here
 806      * (FIXME: check it out by creating a file beginning with one of these tags)
 807      * but cluster and peer create ASes internally, so putting the code in there is ok.
 808      */
 809     surf_parse_models_setup_already_called = 1;
 810     surf_config_models_setup();
 811   }
 812
 813   xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, AS->id, ROUTING_ASR_LEVEL),
 814       "Refusing to create a second AS called \"%s\".", AS->id);
 815
 816   _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
 817                             * any further config now that we created some real content */
 818
 819
 820   /* search the routing model */
 821   simgrid::surf::AsImpl *new_as = NULL;
 822   switch(AS->routing){
 823     case A_surfxml_AS_routing_Cluster:        new_as = new simgrid::surf::AsCluster(AS->id);        break;
 824     case A_surfxml_AS_routing_ClusterTorus:   new_as = new simgrid::surf::AsClusterTorus(AS->id);   break;
 825     case A_surfxml_AS_routing_ClusterFatTree: new_as = new simgrid::surf::AsClusterFatTree(AS->id); break;
 826     case A_surfxml_AS_routing_Dijkstra:       new_as = new simgrid::surf::AsDijkstra(AS->id, 0);    break;
 827     case A_surfxml_AS_routing_DijkstraCache:  new_as = new simgrid::surf::AsDijkstra(AS->id, 1);    break;
 828     case A_surfxml_AS_routing_Floyd:          new_as = new simgrid::surf::AsFloyd(AS->id);          break;
 829     case A_surfxml_AS_routing_Full:           new_as = new simgrid::surf::AsFull(AS->id);           break;
 830     case A_surfxml_AS_routing_None:           new_as = new simgrid::surf::AsNone(AS->id);           break;
 831     case A_surfxml_AS_routing_Vivaldi:        new_as = new simgrid::surf::AsVivaldi(AS->id);        break;
 832     default:                                  xbt_die("Not a valid model!");                        break;
 833   }
 834
 835   /* make a new routing component */
 836   simgrid::surf::NetCard *netcard = new simgrid::surf::NetCardImpl(new_as->name(), simgrid::surf::NetCard::Type::As, current_routing);
 837
 838   if (current_routing == NULL && routing_platf->root_ == NULL) { /* it is the first one */
 839     routing_platf->root_ = new_as;
 840   } else if (current_routing != NULL && routing_platf->root_ != NULL) {
 841
 842     xbt_assert(!xbt_dict_get_or_null(current_routing->children(), AS->id),
 843                "The AS \"%s\" already exists", AS->id);
 844     /* it is a part of the tree */
 845     new_as->father_ = current_routing;
 846     /* set the father behavior */
 847     if (current_routing->hierarchy_ == simgrid::surf::AsImpl::RoutingMode::unset)
 848       current_routing->hierarchy_ = simgrid::surf::AsImpl::RoutingMode::recursive;
 849     /* add to the sons dictionary */
 850     xbt_dict_set(current_routing->children(), AS->id, (void *) new_as, NULL);
 851   } else {
 852     THROWF(arg_error, 0, "All defined components must belong to a AS");
 853   }
 854
 855   xbt_lib_set(as_router_lib, netcard->name(), ROUTING_ASR_LEVEL, (void *) netcard);
 856   XBT_DEBUG("Having set name '%s' id '%d'", new_as->name(), netcard->id());
 857
 858   /* set the new current component of the tree */
 859   current_routing = new_as;
 860   current_routing->netcard_ = netcard;
 861
 862   simgrid::surf::asCreatedCallbacks(new_as);
 863   if (TRACE_is_enabled())
 864     sg_instr_AS_begin(AS);
 865
 866   return new_as;
 867 }
 868
 869 /**
 870  * \brief Specify that the description of the current AS is finished
 871  *
 872  * Once you've declared all the content of your AS, you have to seal
 873  * it with this call. Your AS is not usable until you call this function.
 874  */
 875 void sg_platf_new_AS_seal()
 876 {
 877   xbt_assert(current_routing, "Cannot seal the current AS: none under construction");
 878   current_routing->seal();
 879   current_routing = static_cast<simgrid::surf::AsImpl*>(current_routing->father());
 880
 881   if (TRACE_is_enabled())
 882     sg_instr_AS_end();
 883 }
 884
 885 /** @brief Add a link connecting an host to the rest of its AS (which must be cluster or vivaldi) */
 886 void sg_platf_new_hostlink(sg_platf_host_link_cbarg_t hostlink)
 887 {
 888   simgrid::surf::NetCard *netcard = sg_host_by_name(hostlink->id)->pimpl_netcard;
 889   xbt_assert(netcard, "Host '%s' not found!", hostlink->id);
 890   xbt_assert(dynamic_cast<simgrid::surf::AsCluster*>(current_routing),
 891       "Only hosts from Cluster and Vivaldi ASes can get an host_link.");
 892
 893   s_surf_parsing_link_up_down_t link_up_down;
 894   link_up_down.link_up = Link::byName(hostlink->link_up);
 895   link_up_down.link_down = Link::byName(hostlink->link_down);
 896
 897   xbt_assert(link_up_down.link_up, "Link '%s' not found!",hostlink->link_up);
 898   xbt_assert(link_up_down.link_down, "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 }