src/surf/workstation.c

   1 /* Copyright (c) 2004-2013. 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/ex.h"
   8 #include "xbt/dict.h"
   9 #include "portable.h"
  10 #include "surf_private.h"
  11 #include "storage_private.h"
  12 #include "surf/surf_resource.h"
  13 #include "simgrid/sg_config.h"
  14 #include "workstation_private.h"
  15 #include "vm_workstation_private.h"
  16 #include "cpu_cas01_private.h"
  17 #include "maxmin_private.h"
  18
  19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  20                                 "Logging specific to the SURF workstation module");
  21
  22 surf_model_t surf_workstation_model = NULL;
  23
  24
  25 static void workstation_new(sg_platf_host_cbarg_t host)
  26 {
  27   const char *name = host->id;
  28
  29   /* NOTE: The properties object is NULL, because the current code uses that of
  30    * that of a cpu resource. */
  31   workstation_CLM03_t ws = (workstation_CLM03_t) surf_resource_new(sizeof(s_workstation_CLM03_t), surf_workstation_model, name, NULL, NULL);
  32
  33   ws->storage = xbt_lib_get_or_null(storage_lib, name, ROUTING_STORAGE_HOST_LEVEL);
  34   ws->net_elm = xbt_lib_get_or_null(host_lib, name, ROUTING_HOST_LEVEL);
  35
  36   XBT_DEBUG("Create ws %s with %ld mounted disks", name, xbt_dynar_length(ws->storage));
  37   xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, ws);
  38 }
  39
  40 static void ws_parallel_action_cancel(surf_action_t action)
  41 {
  42   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  43 }
  44
  45 static int ws_parallel_action_free(surf_action_t action)
  46 {
  47   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  48   return -1;
  49 }
  50
  51 int ws_action_unref(surf_action_t action)
  52 {
  53   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
  54     return surf_network_model->action_unref(action);
  55   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
  56     return action->model_obj->action_unref(action);
  57       // previously was: Adrien/Arnaud 6 feb
  58           // surf_cpu_model->action_unref(action);
  59   else if (action->model_obj->type == SURF_MODEL_TYPE_WORKSTATION)
  60     return ws_parallel_action_free(action);
  61   else
  62     DIE_IMPOSSIBLE;
  63   return 0;
  64 }
  65
  66 void ws_action_cancel(surf_action_t action)
  67 {
  68   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
  69     surf_network_model->action_cancel(action);
  70   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
  71     action->model_obj->action_cancel(action);
  72   else if (action->model_obj->type == SURF_MODEL_TYPE_WORKSTATION)
  73     ws_parallel_action_cancel(action);
  74   else
  75     DIE_IMPOSSIBLE;
  76   return;
  77 }
  78
  79 static void ws_action_state_set(surf_action_t action,
  80                                 e_surf_action_state_t state)
  81 {
  82   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
  83     surf_network_model->action_state_set(action, state);
  84   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
  85     action->model_obj->action_state_set(action, state);
  86   else if (action->model_obj->type == SURF_MODEL_TYPE_WORKSTATION)
  87     surf_action_state_set(action, state);
  88   else
  89     DIE_IMPOSSIBLE;
  90   return;
  91 }
  92
  93
  94 /* -- The callback functions at model_private -- */
  95 /* These callbacks are also used for the vm workstation model. */
  96 int ws_resource_used(void *resource_id)
  97 {
  98   /* This model does not implement parallel tasks */
  99   THROW_IMPOSSIBLE;
 100   return -1;
 101 }
 102
 103
 104 /* TODO: iterating active constraint_set may be faster? */
 105 #if 0
 106 static void deactivate_dummy_cpu_action(void)
 107 {
 108   lmm_system_t sys = surf_cpu_model_vm->model_private->maxmin_system;
 109
 110   lmm_constraint_t cnst;
 111   xbt_swag_foreach(cnst, &sys->active_constraint_set) {
 112     /* get vcpu resource */
 113     surf_resource_t cpu = lmm_constraint_id(cnst);
 114     xbt_assert(cpu->model == surf_cpu_model_vm);
 115
 116     /* get vm_ws resource */
 117     workstation_CLM03_t ws = xbt_lib_get_or_null(host_lib, cpu->name, SURF_WKS_LEVEL);
 118
 119     /* make sure we can cast */
 120     xbt_assert(ws->generic_resouce.model == surf_vm_workstation_model);
 121     workstation_VM2013_t vm_ws = (workstation_VM2013_t) ws;
 122
 123     /* make it active in the PM layer */
 124     surf_action_set_priority(vm_ws->cpu_action, 1);
 125   }
 126 }
 127 #endif
 128
 129
 130 /* TODO: Delete this unused code if everything looks good. */
 131 #if 0
 132 static int constraint_is_active(cpu_Cas01_t cpu_cas01)
 133 {
 134   surf_model_t cpu_model = cpu_cas01->generic_resource.model;
 135   lmm_system_t sys = cpu_model->model_private->maxmin_system;
 136   int found = 0;
 137   lmm_constraint_t cnst_tmp;
 138
 139   xbt_swag_foreach(cnst_tmp, &sys->active_constraint_set) {
 140     if (cnst_tmp == cpu_cas01->constraint) {
 141       found = 1;
 142       break;
 143     }
 144   }
 145
 146   return found;
 147 }
 148 #endif
 149
 150
 151 /* Each VM has a dummy CPU action on the PM layer. This CPU action works as the
 152  * constraint (capacity) of the VM in the PM layer. If the VM does not have any
 153  * active task, the dummy CPU action must be deactivated, so that the VM does
 154  * not get any CPU share in the PM layer. */
 155 static void adjust_weight_of_dummy_cpu_actions(void)
 156 {
 157   /* iterate for all hosts including virtual machines */
 158   xbt_lib_cursor_t cursor;
 159   char *key;
 160   void **ind_host;
 161
 162   xbt_lib_foreach(host_lib, cursor, key, ind_host) {
 163     workstation_CLM03_t ws_clm03 = ind_host[SURF_WKS_LEVEL];
 164     cpu_Cas01_t cpu_cas01 = ind_host[SURF_CPU_LEVEL];
 165
 166     if (!ws_clm03)
 167       continue;
 168     /* skip if it is not a virtual machine */
 169     if (ws_clm03->generic_resource.model != surf_vm_workstation_model)
 170       continue;
 171     xbt_assert(cpu_cas01, "cpu-less workstation");
 172
 173     /* It is a virtual machine, so we can cast it to workstation_VM2013_t */
 174     workstation_VM2013_t ws_vm2013 = (workstation_VM2013_t) ws_clm03;
 175
 176     lmm_system_t sys = surf_cpu_model_vm->model_private->maxmin_system;
 177     int is_active = lmm_constraint_used(sys, cpu_cas01->constraint);
 178     // int is_active_old = constraint_is_active(cpu_cas01);
 179
 180     // {
 181     //   xbt_assert(is_active == is_active_old, "%d %d", is_active, is_active_old);
 182     // }
 183
 184     if (is_active) {
 185       /* some tasks exist on this VM */
 186       XBT_DEBUG("set the weight of the dummy CPU action on PM to 1");
 187
 188       /* FIXME: we shoud use lmm_update_variable_weight() ? */
 189       /* FIXME: If we assgign 1.05 and 0.05, the system makes apparently wrong values. */
 190       surf_action_set_priority(ws_vm2013->cpu_action, 1);
 191
 192     } else {
 193       /* no task exits on this VM */
 194       XBT_DEBUG("set the weight of the dummy CPU action on PM to 0");
 195
 196       surf_action_set_priority(ws_vm2013->cpu_action, 0);
 197     }
 198   }
 199 }
 200
 201
 202 double ws_share_resources(surf_model_t workstation_model, double now)
 203 {
 204   if (workstation_model->type == SURF_MODEL_TYPE_WORKSTATION)
 205     adjust_weight_of_dummy_cpu_actions();
 206
 207   /* Invoke the share_resources() callback of the physical cpu model object and
 208    * the network model objects. */
 209   surf_model_t cpu_model = workstation_model->extension.workstation.cpu_model;
 210   surf_model_t net_model = surf_network_model;
 211
 212   double min_by_cpu = cpu_model->model_private->share_resources(cpu_model, now);
 213   double min_by_net = net_model->model_private->share_resources(net_model, now);
 214
 215   XBT_DEBUG("model %p, %s min_by_cpu %f, %s min_by_net %f",
 216       workstation_model, cpu_model->name, min_by_cpu, net_model->name, min_by_net);
 217
 218   if (min_by_cpu >= 0.0 && min_by_net >= 0.0)
 219     return min(min_by_cpu, min_by_net);
 220   else if (min_by_cpu >= 0.0)
 221     return min_by_cpu;
 222   else if (min_by_net >= 0.0)
 223     return min_by_net;
 224   else
 225     return min_by_cpu;  /* probably min_by_cpu == min_by_net == -1 */
 226 }
 227
 228 void ws_update_actions_state(surf_model_t workstation_model, double now, double delta)
 229 {
 230   return;
 231 }
 232
 233 void ws_update_resource_state(void *id, tmgr_trace_event_t event_type, double value, double date)
 234 {
 235   /* This model does not implement parallel tasks */
 236   THROW_IMPOSSIBLE;
 237 }
 238
 239 void ws_finalize(surf_model_t workstation_model)
 240 {
 241   surf_model_exit(workstation_model);
 242   workstation_model = NULL;
 243 }
 244
 245
 246
 247 surf_action_t ws_execute(void *workstation, double size)
 248 {
 249   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 250   return cpu->model->extension.cpu.execute(workstation, size);
 251 }
 252
 253 surf_action_t ws_action_sleep(void *workstation, double duration)
 254 {
 255   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 256   return cpu->model->extension.cpu.sleep(workstation, duration);
 257 }
 258
 259 void ws_action_suspend(surf_action_t action)
 260 {
 261   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 262     surf_network_model->suspend(action);
 263   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 264     action->model_obj->suspend(action);
 265   else
 266     DIE_IMPOSSIBLE;
 267 }
 268
 269 void ws_action_resume(surf_action_t action)
 270 {
 271   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 272     surf_network_model->resume(action);
 273   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 274     action->model_obj->resume(action);
 275   else
 276     DIE_IMPOSSIBLE;
 277 }
 278
 279 static int ws_action_is_suspended(surf_action_t action)
 280 {
 281   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 282     return surf_network_model->is_suspended(action);
 283   if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 284     return action->model_obj->is_suspended(action);
 285   DIE_IMPOSSIBLE;
 286   return -1;
 287 }
 288
 289 static void ws_action_set_max_duration(surf_action_t action,
 290                                        double duration)
 291 {
 292   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 293     surf_network_model->set_max_duration(action, duration);
 294   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 295     action->model_obj->set_max_duration(action, duration);
 296   else
 297     DIE_IMPOSSIBLE;
 298 }
 299
 300 void ws_action_set_priority(surf_action_t action, double priority)
 301 {
 302   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 303     surf_network_model->set_priority(action, priority);
 304   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 305     action->model_obj->set_priority(action, priority);
 306   else
 307     DIE_IMPOSSIBLE;
 308 }
 309
 310 void ws_action_set_bound(surf_action_t action, double bound)
 311 {
 312   /* FIXME: only for CPU model object? */
 313   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 314     surf_network_model->set_bound(action, bound);
 315   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 316     action->model_obj->set_bound(action, bound);
 317   else
 318     DIE_IMPOSSIBLE;
 319 }
 320
 321 void ws_action_set_affinity(surf_action_t action, void *workstation, unsigned long mask)
 322 {
 323   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 324     DIE_IMPOSSIBLE;
 325   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 326     action->model_obj->set_affinity(action, workstation, mask);
 327   else
 328     DIE_IMPOSSIBLE;
 329 }
 330
 331 #ifdef HAVE_TRACING
 332 static void ws_action_set_category(surf_action_t action, const char *category)
 333 {
 334   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 335     surf_network_model->set_category(action, category);
 336   else if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 337     action->model_obj->set_category(action, category);
 338   else
 339     DIE_IMPOSSIBLE;
 340 }
 341 #endif
 342
 343 #ifdef HAVE_LATENCY_BOUND_TRACKING
 344 static int ws_get_latency_limited(surf_action_t action)
 345 {
 346   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 347     return surf_network_model->get_latency_limited(action);
 348   else
 349     return 0;
 350 }
 351 #endif
 352
 353 double ws_action_get_remains(surf_action_t action)
 354 {
 355   if (action->model_obj->type == SURF_MODEL_TYPE_NETWORK)
 356     return surf_network_model->get_remains(action);
 357   if (action->model_obj->type == SURF_MODEL_TYPE_CPU)
 358     return action->model_obj->get_remains(action);
 359   DIE_IMPOSSIBLE;
 360   return -1.0;
 361 }
 362
 363 static surf_action_t ws_communicate(void *workstation_src,
 364                                     void *workstation_dst, double size,
 365                                     double rate)
 366 {
 367   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 368   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 369   return surf_network_model->extension.network.
 370       communicate(src->net_elm,
 371                   dst->net_elm, size, rate);
 372 }
 373
 374 e_surf_resource_state_t ws_get_state(void *workstation)
 375 {
 376   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 377   return cpu->model->extension.cpu.get_state(workstation);
 378 }
 379
 380 static void ws_set_state(void *workstation, e_surf_resource_state_t state)
 381 {
 382   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 383   cpu->model->extension.cpu.set_state(workstation, state);
 384 }
 385
 386 double ws_get_speed(void *workstation, double load)
 387 {
 388   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 389   return cpu->model->extension.cpu.get_speed(workstation, load);
 390 }
 391
 392 static int ws_get_core(void *workstation)
 393 {
 394   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 395   return cpu->model->extension.cpu.get_core(workstation);
 396 }
 397 static double ws_get_available_speed(void *workstation)
 398 {
 399   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 400   return cpu->model->extension.cpu.get_available_speed(workstation);
 401 }
 402
 403 static double ws_get_current_power_peak(void *workstation)
 404 {
 405   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 406   return cpu->model->extension.cpu.
 407       get_current_power_peak(workstation);
 408 }
 409
 410 static double ws_get_power_peak_at(void *workstation, int pstate_index)
 411 {
 412   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 413   return cpu->model->extension.cpu.
 414       get_power_peak_at(workstation, pstate_index);
 415 }
 416
 417 static int ws_get_nb_pstates(void *workstation)
 418 {
 419   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 420   return cpu->model->extension.cpu.
 421       get_nb_pstates(workstation);
 422 }
 423
 424 static void ws_set_power_peak_at(void *workstation, int pstate_index)
 425 {
 426   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 427   cpu->model->extension.cpu.
 428       set_power_peak_at(workstation, pstate_index);
 429 }
 430
 431 static double ws_get_consumed_energy(void *workstation)
 432 {
 433   surf_resource_t cpu = ((surf_resource_t) surf_cpu_resource_priv(workstation));
 434   return cpu->model->extension.cpu.
 435       get_consumed_energy(workstation);
 436 }
 437
 438
 439 static surf_action_t ws_execute_parallel_task(int workstation_nb,
 440                                               void **workstation_list,
 441                                               double *computation_amount,
 442                                               double *communication_amount,
 443                                               double rate)
 444 {
 445 #define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
 446   if ((workstation_nb == 1)
 447       && (cost_or_zero(communication_amount, 0) == 0.0))
 448     return ws_execute(workstation_list[0], computation_amount[0]);
 449   else if ((workstation_nb == 1)
 450            && (cost_or_zero(computation_amount, 0) == 0.0))
 451     return ws_communicate(workstation_list[0], workstation_list[0],communication_amount[0], rate);
 452   else if ((workstation_nb == 2)
 453              && (cost_or_zero(computation_amount, 0) == 0.0)
 454              && (cost_or_zero(computation_amount, 1) == 0.0)) {
 455     int i,nb = 0;
 456     double value = 0.0;
 457
 458     for (i = 0; i < workstation_nb * workstation_nb; i++) {
 459       if (cost_or_zero(communication_amount, i) > 0.0) {
 460         nb++;
 461         value = cost_or_zero(communication_amount, i);
 462       }
 463     }
 464     if (nb == 1)
 465       return ws_communicate(workstation_list[0], workstation_list[1],value, rate);
 466   }
 467 #undef cost_or_zero
 468
 469   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 470   return NULL;
 471 }
 472
 473
 474 /* returns an array of network_link_CM02_t */
 475 static xbt_dynar_t ws_get_route(void *workstation_src, void *workstation_dst)
 476 {
 477   XBT_DEBUG("ws_get_route");
 478   workstation_CLM03_t src = surf_workstation_resource_priv(workstation_src);
 479   workstation_CLM03_t dst = surf_workstation_resource_priv(workstation_dst);
 480   return surf_network_model->extension.
 481       network.get_route(src->net_elm,
 482                   dst->net_elm);
 483 }
 484
 485 static double ws_get_link_bandwidth(const void *link)
 486 {
 487   return surf_network_model->extension.network.get_link_bandwidth(link);
 488 }
 489
 490 static double ws_get_link_latency(const void *link)
 491 {
 492   return surf_network_model->extension.network.get_link_latency(link);
 493 }
 494
 495 static int ws_link_shared(const void *link)
 496 {
 497   return surf_network_model->extension.network.link_shared(link);
 498 }
 499
 500 static xbt_dict_t ws_get_properties(const void *ws)
 501 {
 502   return surf_resource_properties(surf_cpu_resource_priv(ws));
 503 }
 504
 505 static storage_t find_storage_on_mount_list(void *workstation,const char* mount)
 506 {
 507   storage_t st = NULL;
 508   s_mount_t mnt;
 509   unsigned int cursor;
 510   workstation_CLM03_t ws = (workstation_CLM03_t) surf_workstation_resource_priv(workstation);
 511   xbt_dynar_t storage_list = ws->storage;
 512
 513   XBT_DEBUG("Search for storage name '%s' on '%s'",mount,ws->generic_resource.name);
 514   xbt_dynar_foreach(storage_list,cursor,mnt)
 515   {
 516     XBT_DEBUG("See '%s'",mnt.name);
 517     if(!strcmp(mount,mnt.name)){
 518       st = mnt.storage;
 519       break;
 520     }
 521   }
 522   if(!st) xbt_die("Can't find mount '%s' for '%s'",mount,ws->generic_resource.name);
 523   return st;
 524 }
 525
 526 static xbt_dict_t ws_get_storage_list(void *workstation)
 527 {
 528   s_mount_t mnt;
 529   unsigned int i;
 530   xbt_dict_t storage_list = xbt_dict_new_homogeneous(NULL);
 531   char *storage_name = NULL;
 532
 533   workstation_CLM03_t ws = (workstation_CLM03_t) surf_workstation_resource_priv(workstation);
 534   xbt_dynar_t storages = ws->storage;
 535
 536   xbt_dynar_foreach(storages,i,mnt){
 537     storage_name = ((storage_t)mnt.storage)->generic_resource.name;
 538     xbt_dict_set(storage_list,mnt.name,storage_name,NULL);
 539   }
 540   return storage_list;
 541 }
 542
 543 static surf_action_t ws_action_open(void *workstation, const char* mount,
 544                                     const char* path)
 545 {
 546   storage_t st = find_storage_on_mount_list(workstation, mount);
 547   XBT_DEBUG("OPEN on disk '%s'",st->generic_resource.name);
 548   surf_model_t model = st->generic_resource.model;
 549   return model->extension.storage.open(st, mount, path);
 550 }
 551
 552 static surf_action_t ws_action_close(void *workstation, surf_file_t fd)
 553 {
 554   storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 555   XBT_DEBUG("CLOSE on disk '%s'",st->generic_resource.name);
 556   surf_model_t model = st->generic_resource.model;
 557   return model->extension.storage.close(st, fd);
 558 }
 559
 560 static surf_action_t ws_action_read(void *workstation, surf_file_t fd, sg_storage_size_t size)
 561 {
 562   storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 563   XBT_DEBUG("READ on disk '%s'",st->generic_resource.name);
 564   surf_model_t model = st->generic_resource.model;
 565   return model->extension.storage.read(st, fd, size);
 566 }
 567
 568 static surf_action_t ws_action_write(void *workstation, surf_file_t fd, sg_storage_size_t size)
 569 {
 570   storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 571   XBT_DEBUG("WRITE on disk '%s'",st->generic_resource.name);
 572   surf_model_t model = st->generic_resource.model;
 573   return model->extension.storage.write(st, fd, size);
 574 }
 575
 576 static int ws_file_unlink(void *workstation, surf_file_t fd)
 577 {
 578   if (!fd){
 579     XBT_WARN("No such file descriptor. Impossible to unlink");
 580     return 0;
 581   } else {
 582 //    XBT_INFO("%s %zu", fd->storage, fd->size);
 583     storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 584     xbt_dict_t content_dict = (st)->content;
 585     /* Check if the file is on this storage */
 586     if (!xbt_dict_get_or_null(content_dict, fd->name)){
 587       XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name,
 588           st->generic_resource.name);
 589       return 0;
 590     } else {
 591       XBT_DEBUG("UNLINK on disk '%s'",st->generic_resource.name);
 592       st->used_size -= fd->size;
 593
 594       // Remove the file from storage
 595       xbt_dict_remove(content_dict,fd->name);
 596
 597       free(fd->name);
 598       free(fd->mount);
 599       xbt_free(fd);
 600       return 1;
 601     }
 602   }
 603 }
 604
 605 static surf_action_t ws_action_ls(void *workstation, const char* mount,
 606                                   const char *path)
 607 {
 608   XBT_DEBUG("LS on mount '%s' and file '%s'",mount, path);
 609   storage_t st = find_storage_on_mount_list(workstation, mount);
 610   surf_model_t model = st->generic_resource.model;
 611   return model->extension.storage.ls(st, path);
 612 }
 613
 614 static sg_storage_size_t ws_file_get_size(void *workstation, surf_file_t fd)
 615 {
 616   return fd->size;
 617 }
 618
 619 static xbt_dynar_t ws_file_get_info(void *workstation, surf_file_t fd)
 620 {
 621   storage_t st = find_storage_on_mount_list(workstation, fd->mount);
 622   sg_storage_size_t *psize = xbt_new(sg_storage_size_t, 1);
 623   *psize = fd->size;
 624   xbt_dynar_t info = xbt_dynar_new(sizeof(void*), NULL);
 625   xbt_dynar_push_as(info, sg_storage_size_t *, psize);
 626   xbt_dynar_push_as(info, void *, fd->mount);
 627   xbt_dynar_push_as(info, void *, st->generic_resource.name);
 628   xbt_dynar_push_as(info, void *, st->type_id);
 629   xbt_dynar_push_as(info, void *, st->content_type);
 630
 631   return info;
 632 }
 633
 634 static sg_storage_size_t ws_storage_get_free_size(void *workstation,const char* name)
 635 {
 636   storage_t st = find_storage_on_mount_list(workstation, name);
 637   return st->size - st->used_size;
 638 }
 639
 640 static sg_storage_size_t ws_storage_get_used_size(void *workstation,const char* name)
 641 {
 642   storage_t st = find_storage_on_mount_list(workstation, name);
 643   return st->used_size;
 644 }
 645
 646 void ws_get_params(void *ws, ws_params_t params)
 647 {
 648   workstation_CLM03_t ws_clm03 = surf_workstation_resource_priv(ws);
 649   memcpy(params, &ws_clm03->params, sizeof(s_ws_params_t));
 650 }
 651
 652 void ws_set_params(void *ws, ws_params_t params)
 653 {
 654   workstation_CLM03_t ws_clm03 = surf_workstation_resource_priv(ws);
 655   /* may check something here. */
 656   memcpy(&ws_clm03->params, params, sizeof(s_ws_params_t));
 657 }
 658
 659 static xbt_dynar_t ws_get_vms(void *pm)
 660 {
 661   xbt_dynar_t dyn = xbt_dynar_new(sizeof(smx_host_t), NULL);
 662
 663   /* iterate for all hosts including virtual machines */
 664   xbt_lib_cursor_t cursor;
 665   char *key;
 666   void **ind_host;
 667   xbt_lib_foreach(host_lib, cursor, key, ind_host) {
 668     workstation_CLM03_t ws_clm03 = ind_host[SURF_WKS_LEVEL];
 669     if (!ws_clm03)
 670       continue;
 671     /* skip if it is not a virtual machine */
 672     if (ws_clm03->generic_resource.model != surf_vm_workstation_model)
 673       continue;
 674
 675     /* It is a virtual machine, so we can cast it to workstation_VM2013_t */
 676     workstation_VM2013_t ws_vm2013 = (workstation_VM2013_t) ws_clm03;
 677     if (pm == ws_vm2013->sub_ws)
 678       xbt_dynar_push(dyn, &ws_vm2013->sub_ws);
 679   }
 680
 681   return dyn;
 682 }
 683
 684
 685 static void surf_workstation_model_init_internal(void)
 686 {
 687   surf_model_t model = surf_model_init();
 688
 689   model->name = "Workstation";
 690   model->type = SURF_MODEL_TYPE_WORKSTATION;
 691   model->action_unref     = ws_action_unref;
 692   model->action_cancel    = ws_action_cancel;
 693   model->action_state_set = ws_action_state_set;
 694
 695   model->model_private->resource_used         = ws_resource_used;
 696   model->model_private->share_resources       = ws_share_resources;
 697   model->model_private->update_actions_state  = ws_update_actions_state;
 698   model->model_private->update_resource_state = ws_update_resource_state;
 699   model->model_private->finalize              = ws_finalize;
 700
 701   model->suspend          = ws_action_suspend;
 702   model->resume           = ws_action_resume;
 703   model->is_suspended     = ws_action_is_suspended;
 704   model->set_max_duration = ws_action_set_max_duration;
 705   model->set_priority     = ws_action_set_priority;
 706   model->set_bound        = ws_action_set_bound;
 707   model->set_affinity     = ws_action_set_affinity;
 708   #ifdef HAVE_TRACING
 709   model->set_category     = ws_action_set_category;
 710   #endif
 711   model->get_remains      = ws_action_get_remains;
 712   #ifdef HAVE_LATENCY_BOUND_TRACKING
 713   model->get_latency_limited = ws_get_latency_limited;
 714   #endif
 715
 716   /* For VM support, we have a surf cpu model object for each workstation model
 717    * object. The physical workstation model object has the cpu model object of
 718    * the physical machine layer. */
 719   xbt_assert(surf_cpu_model_pm);
 720   model->extension.workstation.cpu_model = surf_cpu_model_pm;
 721
 722   model->extension.workstation.execute   = ws_execute;
 723   model->extension.workstation.sleep     = ws_action_sleep;
 724   model->extension.workstation.get_state = ws_get_state;
 725   model->extension.workstation.set_state = ws_set_state;
 726   model->extension.workstation.get_core  = ws_get_core;
 727   model->extension.workstation.get_speed = ws_get_speed;
 728   model->extension.workstation.get_available_speed =
 729       ws_get_available_speed;
 730   model->extension.workstation.get_current_power_peak = ws_get_current_power_peak;
 731   model->extension.workstation.get_power_peak_at = ws_get_power_peak_at;
 732   model->extension.workstation.get_nb_pstates = ws_get_nb_pstates;
 733   model->extension.workstation.set_power_peak_at = ws_set_power_peak_at;
 734   model->extension.workstation.get_consumed_energy = ws_get_consumed_energy;
 735
 736   model->extension.workstation.communicate = ws_communicate;
 737   model->extension.workstation.get_route = ws_get_route;
 738   model->extension.workstation.execute_parallel_task = ws_execute_parallel_task;
 739   model->extension.workstation.get_link_bandwidth = ws_get_link_bandwidth;
 740   model->extension.workstation.get_link_latency = ws_get_link_latency;
 741   model->extension.workstation.link_shared = ws_link_shared;
 742   model->extension.workstation.get_properties = ws_get_properties;
 743
 744   model->extension.workstation.open = ws_action_open;
 745   model->extension.workstation.close = ws_action_close;
 746   model->extension.workstation.read = ws_action_read;
 747   model->extension.workstation.write = ws_action_write;
 748   model->extension.workstation.unlink = ws_file_unlink;
 749   model->extension.workstation.ls = ws_action_ls;
 750   model->extension.workstation.get_size = ws_file_get_size;
 751   model->extension.workstation.get_info = ws_file_get_info;
 752   model->extension.workstation.get_free_size = ws_storage_get_free_size;
 753   model->extension.workstation.get_used_size = ws_storage_get_used_size;
 754   model->extension.workstation.get_storage_list = ws_get_storage_list;
 755
 756   model->extension.workstation.get_params = ws_get_params;
 757   model->extension.workstation.set_params = ws_set_params;
 758   model->extension.workstation.get_vms    = ws_get_vms;
 759
 760   surf_workstation_model = model;
 761 }
 762
 763 void surf_workstation_model_init_current_default(void)
 764 {
 765   xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", "yes");
 766   surf_cpu_model_init_Cas01();
 767   surf_network_model_init_LegrandVelho();
 768
 769   /* surf_cpu_mode_pm and surf_network_model must be initialized in advance. */
 770   xbt_assert(surf_cpu_model_pm);
 771   xbt_assert(surf_network_model);
 772   surf_workstation_model_init_internal();
 773
 774   xbt_dynar_push(model_list, &surf_workstation_model);
 775   xbt_dynar_push(model_list_invoke, &surf_workstation_model);
 776   sg_platf_host_add_cb(workstation_new);
 777 }
 778
 779 void surf_workstation_model_init_compound()
 780 {
 781   xbt_assert(surf_cpu_model_pm, "No CPU model defined yet!");
 782   xbt_assert(surf_network_model, "No network model defined yet!");
 783
 784   surf_workstation_model_init_internal();
 785   xbt_dynar_push(model_list, &surf_workstation_model);
 786   xbt_dynar_push(model_list_invoke, &surf_workstation_model);
 787   sg_platf_host_add_cb(workstation_new);
 788 }