src/simix/smx_host.c

   1 /* Copyright (c) 2007-2014. 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 "smx_private.h"
   8 #include "xbt/sysdep.h"
   9 #include "xbt/log.h"
  10 #include "xbt/dict.h"
  11 #include "mc/mc.h"
  12
  13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_host, simix,
  14                                 "Logging specific to SIMIX (hosts)");
  15
  16 static void SIMIX_execution_finish(smx_action_t action);
  17
  18 /**
  19  * \brief Internal function to create a SIMIX host.
  20  * \param name name of the host to create
  21  * \param workstation the SURF workstation to encapsulate
  22  * \param data some user data (may be NULL)
  23  */
  24 smx_host_t SIMIX_host_create(const char *name,
  25                                void *workstation, void *data)
  26 {
  27   smx_host_priv_t smx_host = xbt_new0(s_smx_host_priv_t, 1);
  28   s_smx_process_t proc;
  29
  30   /* Host structure */
  31   smx_host->process_list =
  32       xbt_swag_new(xbt_swag_offset(proc, host_proc_hookup));
  33
  34   /* Update global variables */
  35   xbt_lib_set(host_lib,name,SIMIX_HOST_LEVEL,smx_host);
  36
  37   return xbt_lib_get_elm_or_null(host_lib, name);
  38 }
  39
  40 void simcall_HANDLER_host_on(smx_simcall_t simcall, smx_host_t h)
  41 {
  42   SIMIX_host_on(h);
  43 }
  44
  45 /**
  46  * \brief Start the host if it is off
  47  *
  48  */
  49 void SIMIX_host_on(smx_host_t h)
  50 {
  51   smx_host_priv_t host = SIMIX_host_priv(h);
  52
  53   xbt_assert((host != NULL), "Invalid parameters");
  54
  55   if (surf_resource_get_state(surf_workstation_resource_priv(h))==SURF_RESOURCE_OFF) {
  56     surf_resource_set_state(surf_workstation_resource_priv(h), SURF_RESOURCE_ON);
  57
  58     unsigned int cpt;
  59     smx_process_arg_t arg;
  60     xbt_dynar_foreach(host->boot_processes,cpt,arg) {
  61       smx_process_t process;
  62
  63       char** argv = xbt_new(char*, arg->argc);
  64       for (int i=0; i<arg->argc; i++)
  65         argv[i] = xbt_strdup(arg->argv[i]);
  66
  67       XBT_DEBUG("Booting Process %s(%s) right now", arg->argv[0], arg->hostname);
  68       if (simix_global->create_process_function) {
  69         simix_global->create_process_function(&process,
  70                                               argv[0],
  71                                               arg->code,
  72                                               NULL,
  73                                               arg->hostname,
  74                                               arg->kill_time,
  75                                               arg->argc,
  76                                               argv,
  77                                               arg->properties,
  78                                               arg->auto_restart,
  79                                               NULL);
  80       } else {
  81         simcall_process_create(&process,
  82                                arg->argv[0],
  83                                arg->code,
  84                                NULL,
  85                                arg->hostname,
  86                                arg->kill_time,
  87                                arg->argc,
  88                                argv,
  89                                arg->properties,
  90                                arg->auto_restart);
  91       }
  92     }
  93   }
  94 }
  95
  96 void simcall_HANDLER_host_off(smx_simcall_t simcall, smx_host_t h)
  97 {
  98   SIMIX_host_off(h, simcall->issuer);
  99 }
 100
 101 /**
 102  * \brief Stop the host if it is on
 103  *
 104  */
 105 void SIMIX_host_off(smx_host_t h, smx_process_t issuer)
 106 {
 107   smx_host_priv_t host = SIMIX_host_priv(h);
 108
 109   xbt_assert((host != NULL), "Invalid parameters");
 110
 111   if (surf_resource_get_state(surf_workstation_resource_priv(h))==SURF_RESOURCE_ON) {
 112         surf_resource_set_state(surf_workstation_resource_priv(h), SURF_RESOURCE_OFF);
 113
 114     /* Clean Simulator data */
 115     if (xbt_swag_size(host->process_list) != 0) {
 116       smx_process_t process = NULL;
 117       xbt_swag_foreach(process, host->process_list) {
 118         SIMIX_process_kill(process, issuer);
 119         XBT_DEBUG("Killing %s on %s by %s", process->name,  sg_host_name(process->smx_host), issuer->name);
 120       }
 121     }
 122   }
 123   /*xbt_dynar_t vms = surf_workstation_get_vms(h);
 124   unsigned int cpt;
 125   smx_host_t vm;
 126   xbt_dynar_foreach(vms, cpt, vm) {
 127     SIMIX_vm_shutdown(vm, issuer);
 128     SIMIX_vm_destroy(vm);
 129   }
 130   xbt_dynar_free(&vms);*/
 131 }
 132
 133 /**
 134  * \brief Internal function to destroy a SIMIX host.
 135  *
 136  * \param h the host to destroy (a smx_host_t)
 137  */
 138 void SIMIX_host_destroy(void *h)
 139 {
 140   smx_host_priv_t host = (smx_host_priv_t) h;
 141
 142   xbt_assert((host != NULL), "Invalid parameters");
 143
 144   /* Clean Simulator data */
 145   if (xbt_swag_size(host->process_list) != 0) {
 146     char *msg = xbt_strdup("Shutting down host, but it's not empty:");
 147     char *tmp;
 148     smx_process_t process = NULL;
 149
 150     xbt_swag_foreach(process, host->process_list) {
 151       tmp = bprintf("%s\n\t%s", msg, process->name);
 152       free(msg);
 153       msg = tmp;
 154     }
 155     SIMIX_display_process_status();
 156     THROWF(arg_error, 0, "%s", msg);
 157   }
 158   xbt_dynar_free(&host->auto_restart_processes);
 159   xbt_dynar_free(&host->boot_processes);
 160   xbt_swag_free(host->process_list);
 161
 162   /* Clean host structure */
 163   free(host);
 164   return;
 165 }
 166
 167 ///**
 168 // * \brief Returns a dict of all hosts.
 169 // *
 170 // * \return List of all hosts (as a #xbt_dict_t)
 171 // */
 172 //xbt_dict_t SIMIX_host_get_dict(void)
 173 //{
 174 //  xbt_dict_t host_dict = xbt_dict_new_homogeneous(NULL);
 175 //  xbt_lib_cursor_t cursor = NULL;
 176 //  char *name = NULL;
 177 //  void **host = NULL;
 178 //
 179 //  xbt_lib_foreach(host_lib, cursor, name, host){
 180 //    if(host[SIMIX_HOST_LEVEL])
 181 //            xbt_dict_set(host_dict,name,host[SIMIX_HOST_LEVEL], NULL);
 182 //  }
 183 //  return host_dict;
 184 //}
 185 smx_host_t simcall_HANDLER_host_get_by_name(smx_simcall_t simcall, const char *name){
 186    return SIMIX_host_get_by_name(name);
 187 }
 188 smx_host_t SIMIX_host_get_by_name(const char *name){
 189   xbt_assert(((simix_global != NULL)
 190                && (host_lib != NULL)),
 191               "Environment not set yet");
 192
 193   return xbt_lib_get_elm_or_null(host_lib, name);
 194 }
 195
 196 smx_host_t SIMIX_host_self(void)
 197 {
 198   smx_process_t process = SIMIX_process_self();
 199   return (process == NULL) ? NULL : SIMIX_process_get_host(process);
 200 }
 201
 202 const char* simcall_HANDLER_host_self_get_name(smx_simcall_t simcall){
 203    return SIMIX_host_self_get_name();
 204 }
 205 /* needs to be public and without simcall because it is called
 206    by exceptions and logging events */
 207 const char* SIMIX_host_self_get_name(void)
 208 {
 209   smx_host_t host = SIMIX_host_self();
 210   if (host == NULL || SIMIX_process_self() == simix_global->maestro_process)
 211     return "";
 212
 213   return SIMIX_host_get_name(host);
 214 }
 215
 216 const char* simcall_HANDLER_host_get_name(smx_simcall_t simcall, smx_host_t host){
 217    return SIMIX_host_get_name(host);
 218 }
 219 const char* SIMIX_host_get_name(smx_host_t host){
 220   xbt_assert((host != NULL), "Invalid parameters");
 221
 222   return sg_host_name(host);
 223 }
 224
 225 xbt_dict_t simcall_HANDLER_host_get_properties(smx_simcall_t simcall, smx_host_t host){
 226   return SIMIX_host_get_properties(host);
 227 }
 228 xbt_dict_t SIMIX_host_get_properties(smx_host_t host){
 229   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 230
 231   return surf_resource_get_properties(surf_workstation_resource_priv(host));
 232 }
 233
 234 double simcall_HANDLER_host_get_speed(smx_simcall_t simcall, smx_host_t host){
 235   return SIMIX_host_get_speed(host);
 236 }
 237 double SIMIX_host_get_speed(smx_host_t host){
 238   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 239   return surf_workstation_get_speed(host, 1.0);
 240 }
 241
 242 int simcall_HANDLER_host_get_core(smx_simcall_t simcall, smx_host_t host){
 243   return SIMIX_host_get_core(host);
 244 }
 245 int SIMIX_host_get_core(smx_host_t host){
 246   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 247
 248   return surf_workstation_get_core(host);
 249 }
 250
 251 xbt_swag_t simcall_HANDLER_host_get_process_list(smx_simcall_t simcall, smx_host_t host){
 252   return SIMIX_host_get_process_list(host);
 253 }
 254
 255 xbt_swag_t SIMIX_host_get_process_list(smx_host_t host){
 256   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 257   smx_host_priv_t host_priv = SIMIX_host_priv(host);
 258
 259   return host_priv->process_list;
 260 }
 261
 262
 263 double simcall_HANDLER_host_get_available_speed(smx_simcall_t simcall, smx_host_t host){
 264   return SIMIX_host_get_available_speed(host);
 265 }
 266 double SIMIX_host_get_available_speed(smx_host_t host){
 267   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 268
 269   return surf_workstation_get_available_speed(host);
 270 }
 271
 272 double simcall_HANDLER_host_get_current_power_peak(smx_simcall_t simcall, smx_host_t host){
 273   return SIMIX_host_get_current_power_peak(host);
 274 }
 275 double SIMIX_host_get_current_power_peak(smx_host_t host) {
 276           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 277           return surf_workstation_get_current_power_peak(host);
 278 }
 279
 280 double simcall_HANDLER_host_get_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
 281   return SIMIX_host_get_power_peak_at(host, pstate_index);
 282 }
 283 double SIMIX_host_get_power_peak_at(smx_host_t host, int pstate_index) {
 284           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 285
 286           return surf_workstation_get_power_peak_at(host, pstate_index);
 287 }
 288
 289 int simcall_HANDLER_host_get_nb_pstates(smx_simcall_t simcall, smx_host_t host){
 290   return SIMIX_host_get_nb_pstates(host);
 291 }
 292 int SIMIX_host_get_nb_pstates(smx_host_t host) {
 293           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 294
 295           return surf_workstation_get_nb_pstates(host);
 296 }
 297
 298
 299 void simcall_HANDLER_host_set_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
 300   SIMIX_host_set_power_peak_at(host, pstate_index);
 301 }
 302 void SIMIX_host_set_power_peak_at(smx_host_t host, int pstate_index) {
 303           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 304
 305           surf_workstation_set_power_peak_at(host, pstate_index);
 306 }
 307
 308 double simcall_HANDLER_host_get_consumed_energy(smx_simcall_t simcall, smx_host_t host){
 309   return SIMIX_host_get_consumed_energy(host);
 310 }
 311 double SIMIX_host_get_consumed_energy(smx_host_t host) {
 312           xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 313           return surf_workstation_get_consumed_energy(host);
 314 }
 315
 316 int simcall_HANDLER_host_get_state(smx_simcall_t simcall, smx_host_t host){
 317   return SIMIX_host_get_state(host);
 318 }
 319 int SIMIX_host_get_state(smx_host_t host){
 320   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 321
 322   return surf_resource_get_state(surf_workstation_resource_priv(host));
 323 }
 324
 325 void _SIMIX_host_free_process_arg(void *data)
 326 {
 327   smx_process_arg_t arg = *(void**)data;
 328   int i;
 329   for (i = 0; i < arg->argc; i++)
 330     xbt_free(arg->argv[i]);
 331   xbt_free(arg->argv);
 332   xbt_free(arg->name);
 333   xbt_free(arg);
 334 }
 335 /**
 336  * \brief Add a process to the list of the processes that the host will restart when it comes back
 337  * This function add a process to the list of the processes that will be restarted when the host comes
 338  * back. It is expected that this function is called when the host is down.
 339  * The processes will only be restarted once, meaning that you will have to register the process
 340  * again to restart the process again.
 341  */
 342 void SIMIX_host_add_auto_restart_process(smx_host_t host,
 343                                          const char *name,
 344                                          xbt_main_func_t code,
 345                                          void *data,
 346                                          const char *hostname,
 347                                          double kill_time,
 348                                          int argc, char **argv,
 349                                          xbt_dict_t properties,
 350                                          int auto_restart)
 351 {
 352   if (!SIMIX_host_priv(host)->auto_restart_processes) {
 353     SIMIX_host_priv(host)->auto_restart_processes = xbt_dynar_new(sizeof(smx_process_arg_t),_SIMIX_host_free_process_arg);
 354   }
 355   smx_process_arg_t arg = xbt_new(s_smx_process_arg_t,1);
 356   arg->name = xbt_strdup(name);
 357   arg->code = code;
 358   arg->data = data;
 359   arg->hostname = hostname;
 360   arg->kill_time = kill_time;
 361   arg->argc = argc;
 362
 363   arg->argv = xbt_new(char*,argc + 1);
 364
 365   int i;
 366   for (i = 0; i < argc; i++) {
 367     arg->argv[i] = xbt_strdup(argv[i]);
 368   }
 369   arg->argv[argc] = NULL;
 370
 371   arg->properties = properties;
 372   arg->auto_restart = auto_restart;
 373
 374   if( SIMIX_host_get_state(host) == SURF_RESOURCE_OFF
 375       && !xbt_dict_get_or_null(watched_hosts_lib,sg_host_name(host))){
 376     xbt_dict_set(watched_hosts_lib,sg_host_name(host),host,NULL);
 377     XBT_DEBUG("Have pushed host %s to watched_hosts_lib because state == SURF_RESOURCE_OFF",sg_host_name(host));
 378   }
 379   xbt_dynar_push_as(SIMIX_host_priv(host)->auto_restart_processes,smx_process_arg_t,arg);
 380 }
 381 /**
 382  * \brief Restart the list of processes that have been registered to the host
 383  */
 384 void SIMIX_host_restart_processes(smx_host_t host)
 385 {
 386   unsigned int cpt;
 387   smx_process_arg_t arg;
 388   xbt_dynar_t process_list = SIMIX_host_priv(host)->auto_restart_processes;
 389   if (!process_list)
 390     return;
 391
 392   xbt_dynar_foreach (process_list, cpt, arg) {
 393
 394     smx_process_t process;
 395
 396     XBT_DEBUG("Restarting Process %s(%s) right now", arg->argv[0], arg->hostname);
 397     if (simix_global->create_process_function) {
 398       simix_global->create_process_function(&process,
 399                                             arg->argv[0],
 400                                             arg->code,
 401                                             NULL,
 402                                             arg->hostname,
 403                                             arg->kill_time,
 404                                             arg->argc,
 405                                             arg->argv,
 406                                             arg->properties,
 407                                             arg->auto_restart,
 408                                             NULL);
 409     } else {
 410       simcall_process_create(&process,
 411                              arg->argv[0],
 412                              arg->code,
 413                              NULL,
 414                              arg->hostname,
 415                              arg->kill_time,
 416                              arg->argc,
 417                              arg->argv,
 418                              arg->properties,
 419                              arg->auto_restart);
 420
 421     }
 422     /* arg->argv is used by the process created above.  Hide it to
 423      * _SIMIX_host_free_process_arg() which is called by xbt_dynar_reset()
 424      * below. */
 425     arg->argc = 0;
 426     arg->argv = NULL;
 427   }
 428   xbt_dynar_reset(process_list);
 429 }
 430
 431 void SIMIX_host_autorestart(smx_host_t host)
 432 {
 433   if(simix_global->autorestart)
 434     simix_global->autorestart(host);
 435   else
 436     xbt_die("No function for simix_global->autorestart");
 437 }
 438
 439 smx_action_t simcall_HANDLER_host_execute(smx_simcall_t simcall,const char *name,
 440     smx_host_t host, double computation_amount, double priority, double bound, unsigned long affinity_mask){
 441   return SIMIX_host_execute(name, host, computation_amount, priority, bound, affinity_mask);
 442 }
 443 smx_action_t SIMIX_host_execute(const char *name,
 444     smx_host_t host, double computation_amount, double priority, double bound, unsigned long affinity_mask){
 445
 446   /* alloc structures and initialize */
 447   smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
 448   action->type = SIMIX_ACTION_EXECUTE;
 449   action->name = xbt_strdup(name);
 450   action->state = SIMIX_RUNNING;
 451   action->execution.host = host;
 452
 453 #ifdef HAVE_TRACING
 454   action->category = NULL;
 455 #endif
 456
 457   /* set surf's action */
 458   if (!MC_is_active()) {
 459
 460     action->execution.surf_exec = surf_workstation_execute(host, computation_amount);
 461     surf_action_set_data(action->execution.surf_exec, action);
 462     surf_action_set_priority(action->execution.surf_exec, priority);
 463
 464     /* Note (hypervisor): for multicore, the bound value being passed to the
 465      * surf layer should not be zero (i.e., unlimited). It should be the
 466      * capacity of a CPU core. */
 467     if (bound == 0)
 468       surf_cpu_action_set_bound(action->execution.surf_exec, SIMIX_host_get_speed(host));
 469     else
 470       surf_cpu_action_set_bound(action->execution.surf_exec, bound);
 471
 472     if (affinity_mask != 0) {
 473       /* just a double check to confirm that this host is the host where this task is running. */
 474       xbt_assert(action->execution.host == host);
 475       surf_cpu_action_set_affinity(action->execution.surf_exec, host, affinity_mask);
 476     }
 477   }
 478
 479   XBT_DEBUG("Create execute action %p: %s", action, action->name);
 480
 481   return action;
 482 }
 483
 484 smx_action_t simcall_HANDLER_host_parallel_execute(smx_simcall_t simcall, const char *name,
 485     int host_nb, smx_host_t *host_list,
 486     double *computation_amount, double *communication_amount,
 487     double amount, double rate){
 488   return SIMIX_host_parallel_execute(name, host_nb, host_list, computation_amount,
 489                                      communication_amount, amount, rate);
 490 }
 491 smx_action_t SIMIX_host_parallel_execute(const char *name,
 492     int host_nb, smx_host_t *host_list,
 493     double *computation_amount, double *communication_amount,
 494     double amount, double rate){
 495
 496   void **workstation_list = NULL;
 497   int i;
 498
 499   /* alloc structures and initialize */
 500   smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
 501   action->type = SIMIX_ACTION_PARALLEL_EXECUTE;
 502   action->name = xbt_strdup(name);
 503   action->state = SIMIX_RUNNING;
 504   action->execution.host = NULL; /* FIXME: do we need the list of hosts? */
 505
 506 #ifdef HAVE_TRACING
 507   action->category = NULL;
 508 #endif
 509
 510   /* set surf's action */
 511   workstation_list = xbt_new0(void *, host_nb);
 512   for (i = 0; i < host_nb; i++)
 513     workstation_list[i] = surf_workstation_resource_priv(host_list[i]);
 514
 515
 516   /* FIXME: what happens if host_list contains VMs and PMs. If
 517    * execute_parallel_task() does not change the state of the model, we can mix
 518    * them. */
 519   surf_model_t ws_model = surf_resource_model(host_list[0], SURF_WKS_LEVEL);
 520   for (i = 1; i < host_nb; i++) {
 521     surf_model_t ws_model_tmp = surf_resource_model(host_list[i], SURF_WKS_LEVEL);
 522     if (ws_model_tmp != ws_model) {
 523       XBT_CRITICAL("mixing VMs and PMs is not supported");
 524       DIE_IMPOSSIBLE;
 525     }
 526   }
 527
 528   /* set surf's action */
 529   if (!MC_is_active()) {
 530     action->execution.surf_exec =
 531       surf_workstation_model_execute_parallel_task((surf_workstation_model_t)surf_workstation_model,
 532                   host_nb, workstation_list, computation_amount, communication_amount, rate);
 533
 534     surf_action_set_data(action->execution.surf_exec, action);
 535   }
 536   XBT_DEBUG("Create parallel execute action %p", action);
 537
 538   return action;
 539 }
 540
 541 void simcall_HANDLER_host_execution_destroy(smx_simcall_t simcall, smx_action_t action){
 542   SIMIX_host_execution_destroy(action);
 543 }
 544 void SIMIX_host_execution_destroy(smx_action_t action){
 545   XBT_DEBUG("Destroy action %p", action);
 546
 547   if (action->execution.surf_exec) {
 548     surf_action_unref(action->execution.surf_exec);
 549     action->execution.surf_exec = NULL;
 550   }
 551   xbt_free(action->name);
 552   xbt_mallocator_release(simix_global->action_mallocator, action);
 553 }
 554
 555 void simcall_HANDLER_host_execution_cancel(smx_simcall_t simcall, smx_action_t action){
 556   SIMIX_host_execution_cancel(action);
 557 }
 558 void SIMIX_host_execution_cancel(smx_action_t action){
 559   XBT_DEBUG("Cancel action %p", action);
 560
 561   if (action->execution.surf_exec)
 562     surf_action_cancel(action->execution.surf_exec);
 563 }
 564
 565 double simcall_HANDLER_host_execution_get_remains(smx_simcall_t simcall, smx_action_t action){
 566   return SIMIX_host_execution_get_remains(action);
 567 }
 568 double SIMIX_host_execution_get_remains(smx_action_t action){
 569   double result = 0.0;
 570
 571   if (action->state == SIMIX_RUNNING)
 572     result = surf_action_get_remains(action->execution.surf_exec);
 573
 574   return result;
 575 }
 576
 577 e_smx_state_t simcall_HANDLER_host_execution_get_state(smx_simcall_t simcall, smx_action_t action){
 578   return SIMIX_host_execution_get_state(action);
 579 }
 580 e_smx_state_t SIMIX_host_execution_get_state(smx_action_t action){
 581   return action->state;
 582 }
 583
 584 void simcall_HANDLER_host_execution_set_priority(smx_simcall_t simcall, smx_action_t action,
 585                                         double priority){
 586   SIMIX_host_execution_set_priority(action, priority);
 587 }
 588 void SIMIX_host_execution_set_priority(smx_action_t action, double priority){
 589
 590   if(action->execution.surf_exec)
 591         surf_action_set_priority(action->execution.surf_exec, priority);
 592 }
 593
 594 void simcall_HANDLER_host_execution_set_bound(smx_simcall_t simcall, smx_action_t action,
 595                                         double bound){
 596   SIMIX_host_execution_set_bound(action, bound);
 597 }
 598 void SIMIX_host_execution_set_bound(smx_action_t action, double bound){
 599
 600   if(action->execution.surf_exec)
 601         surf_cpu_action_set_bound(action->execution.surf_exec, bound);
 602 }
 603
 604 void simcall_HANDLER_host_execution_set_affinity(smx_simcall_t simcall,
 605     smx_action_t action, smx_host_t host, unsigned long mask){
 606   SIMIX_host_execution_set_affinity(action, host, mask);
 607 }
 608 void SIMIX_host_execution_set_affinity(smx_action_t action, smx_host_t host, unsigned long mask){
 609   xbt_assert(action->type == SIMIX_ACTION_EXECUTE);
 610
 611   if (action->execution.surf_exec) {
 612     /* just a double check to confirm that this host is the host where this task is running. */
 613     xbt_assert(action->execution.host == host);
 614     surf_cpu_action_set_affinity(action->execution.surf_exec, host, mask);
 615   }
 616 }
 617
 618 void simcall_HANDLER_host_execution_wait(smx_simcall_t simcall, smx_action_t action){
 619
 620   XBT_DEBUG("Wait for execution of action %p, state %d", action, (int)action->state);
 621
 622   /* Associate this simcall to the action */
 623   xbt_fifo_push(action->simcalls, simcall);
 624   simcall->issuer->waiting_action = action;
 625
 626   /* set surf's action */
 627   if (MC_is_active()) {
 628     action->state = SIMIX_DONE;
 629     SIMIX_execution_finish(action);
 630     return;
 631   }
 632
 633   /* If the action is already finished then perform the error handling */
 634   if (action->state != SIMIX_RUNNING)
 635     SIMIX_execution_finish(action);
 636 }
 637
 638 void SIMIX_host_execution_suspend(smx_action_t action)
 639 {
 640   if(action->execution.surf_exec)
 641     surf_action_suspend(action->execution.surf_exec);
 642 }
 643
 644 void SIMIX_host_execution_resume(smx_action_t action)
 645 {
 646   if(action->execution.surf_exec)
 647     surf_action_resume(action->execution.surf_exec);
 648 }
 649
 650 void SIMIX_execution_finish(smx_action_t action)
 651 {
 652   xbt_fifo_item_t item;
 653   smx_simcall_t simcall;
 654
 655   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 656
 657     switch (action->state) {
 658
 659       case SIMIX_DONE:
 660         /* do nothing, action done */
 661   XBT_DEBUG("SIMIX_execution_finished: execution successful");
 662         break;
 663
 664       case SIMIX_FAILED:
 665         XBT_DEBUG("SIMIX_execution_finished: host '%s' failed", sg_host_name(simcall->issuer->smx_host));
 666         simcall->issuer->context->iwannadie = 1;
 667         SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
 668         break;
 669
 670       case SIMIX_CANCELED:
 671         XBT_DEBUG("SIMIX_execution_finished: execution canceled");
 672         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 673         break;
 674
 675       default:
 676         xbt_die("Internal error in SIMIX_execution_finish: unexpected action state %d",
 677             (int)action->state);
 678     }
 679     /* check if the host is down */
 680     if (surf_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
 681       simcall->issuer->context->iwannadie = 1;
 682     }
 683
 684     simcall->issuer->waiting_action =    NULL;
 685     simcall_host_execution_wait__set__result(simcall, action->state);
 686     SIMIX_simcall_answer(simcall);
 687   }
 688
 689   /* We no longer need it */
 690   SIMIX_host_execution_destroy(action);
 691 }
 692
 693
 694 void SIMIX_post_host_execute(smx_action_t action)
 695 {
 696   if (action->type == SIMIX_ACTION_EXECUTE && /* FIMXE: handle resource failure
 697                                                * for parallel tasks too */
 698       surf_resource_get_state(surf_workstation_resource_priv(action->execution.host)) == SURF_RESOURCE_OFF) {
 699     /* If the host running the action failed, notice it so that the asking
 700      * process can be killed if it runs on that host itself */
 701     action->state = SIMIX_FAILED;
 702   } else if (surf_action_get_state(action->execution.surf_exec) == SURF_ACTION_FAILED) {
 703     /* If the host running the action didn't fail, then the action was
 704      * canceled */
 705     action->state = SIMIX_CANCELED;
 706   } else {
 707     action->state = SIMIX_DONE;
 708   }
 709
 710   if (action->execution.surf_exec) {
 711     surf_action_unref(action->execution.surf_exec);
 712     action->execution.surf_exec = NULL;
 713   }
 714
 715   /* If there are simcalls associated with the action, then answer them */
 716   if (xbt_fifo_size(action->simcalls)) {
 717     SIMIX_execution_finish(action);
 718   }
 719 }
 720
 721
 722 #ifdef HAVE_TRACING
 723 void simcall_HANDLER_set_category(smx_simcall_t simcall, smx_action_t action,
 724                             const char *category){
 725   SIMIX_set_category(action, category);
 726 }
 727 void SIMIX_set_category(smx_action_t action, const char *category)
 728 {
 729   if (action->state != SIMIX_RUNNING) return;
 730   if (action->type == SIMIX_ACTION_EXECUTE){
 731     surf_action_set_category(action->execution.surf_exec, category);
 732   }else if (action->type == SIMIX_ACTION_COMMUNICATE){
 733     surf_action_set_category(action->comm.surf_comm, category);
 734   }
 735 }
 736 #endif
 737
 738 /**
 739  * \brief Function to get the parameters of the given the SIMIX host.
 740  *
 741  * \param host the host to get_phys_host (a smx_host_t)
 742  * \param param the parameter object space to be overwritten (a ws_params_t)
 743  */
 744 void SIMIX_host_get_params(smx_host_t ind_vm, ws_params_t params)
 745 {
 746   /* jump to ws_get_params(). */
 747   surf_workstation_get_params(ind_vm, params);
 748 }
 749
 750 void simcall_HANDLER_host_get_params(smx_simcall_t simcall, smx_host_t ind_vm, ws_params_t params)
 751 {
 752   SIMIX_host_get_params(ind_vm, params);
 753 }
 754
 755 void SIMIX_host_set_params(smx_host_t ind_vm, ws_params_t params)
 756 {
 757   /* jump to ws_set_params(). */
 758   surf_workstation_set_params(ind_vm, params);
 759 }
 760
 761 void simcall_HANDLER_host_set_params(smx_simcall_t simcall, smx_host_t ind_vm, ws_params_t params)
 762 {
 763   SIMIX_host_set_params(ind_vm, params);
 764 }
 765
 766 xbt_dict_t simcall_HANDLER_host_get_mounted_storage_list(smx_simcall_t simcall, smx_host_t host){
 767   return SIMIX_host_get_mounted_storage_list(host);
 768 }
 769
 770 xbt_dict_t SIMIX_host_get_mounted_storage_list(smx_host_t host){
 771   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 772
 773   return surf_workstation_get_mounted_storage_list(host);
 774 }
 775
 776 xbt_dynar_t simcall_HANDLER_host_get_attached_storage_list(smx_simcall_t simcall, smx_host_t host){
 777   return SIMIX_host_get_attached_storage_list(host);
 778 }
 779
 780 xbt_dynar_t SIMIX_host_get_attached_storage_list(smx_host_t host){
 781   xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
 782
 783   return surf_workstation_get_attached_storage_list(host);
 784 }