1 /* Copyright (c) 2007-2014. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include "smx_private.h"
8 #include "xbt/sysdep.h"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_host, simix,
14 "Logging specific to SIMIX (hosts)");
16 static void SIMIX_execution_finish(smx_action_t action);
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)
24 smx_host_t SIMIX_host_create(const char *name,
25 void *workstation, void *data)
27 smx_host_priv_t smx_host = xbt_new0(s_smx_host_priv_t, 1);
31 smx_host->process_list =
32 xbt_swag_new(xbt_swag_offset(proc, host_proc_hookup));
34 /* Update global variables */
35 xbt_lib_set(host_lib,name,SIMIX_HOST_LEVEL,smx_host);
37 return xbt_lib_get_elm_or_null(host_lib, name);
40 void SIMIX_pre_host_on(smx_simcall_t simcall, smx_host_t h)
46 * \brief Start the host if it is off
49 void SIMIX_host_on(smx_host_t h)
51 smx_host_priv_t host = SIMIX_host_priv(h);
53 xbt_assert((host != NULL), "Invalid parameters");
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);
58 smx_process_arg_t arg;
59 xbt_dynar_foreach(host->boot_processes,cpt,arg) {
60 smx_process_t process;
62 XBT_DEBUG("Booting Process %s(%s) right now", arg->argv[0], arg->hostname);
63 if (simix_global->create_process_function) {
64 simix_global->create_process_function(&process,
76 simcall_process_create(&process,
91 void SIMIX_pre_host_off(smx_simcall_t simcall, smx_host_t h)
93 SIMIX_host_off(h, simcall->issuer);
97 * \brief Stop the host if it is on
100 void SIMIX_host_off(smx_host_t h, smx_process_t issuer)
102 smx_host_priv_t host = SIMIX_host_priv(h);
104 xbt_assert((host != NULL), "Invalid parameters");
106 if (surf_resource_get_state(surf_workstation_resource_priv(h))==SURF_RESOURCE_ON) {
107 surf_resource_set_state(surf_workstation_resource_priv(h), SURF_RESOURCE_OFF);
109 /* Clean Simulator data */
110 if (xbt_swag_size(host->process_list) != 0) {
111 smx_process_t process = NULL;
112 xbt_swag_foreach(process, host->process_list) {
113 SIMIX_process_kill(process, issuer);
114 XBT_DEBUG("Killing %s on %s by %s", process->name, sg_host_name(process->smx_host), issuer->name);
121 * \brief Internal function to destroy a SIMIX host.
123 * \param h the host to destroy (a smx_host_t)
125 void SIMIX_host_destroy(void *h)
127 smx_host_priv_t host = (smx_host_priv_t) h;
129 xbt_assert((host != NULL), "Invalid parameters");
131 /* Clean Simulator data */
132 if (xbt_swag_size(host->process_list) != 0) {
133 char *msg = xbt_strdup("Shutting down host, but it's not empty:");
135 smx_process_t process = NULL;
137 xbt_swag_foreach(process, host->process_list) {
138 tmp = bprintf("%s\n\t%s", msg, process->name);
142 SIMIX_display_process_status();
143 THROWF(arg_error, 0, "%s", msg);
145 xbt_dynar_free(&host->auto_restart_processes);
146 xbt_dynar_free(&host->boot_processes);
147 xbt_swag_free(host->process_list);
149 /* Clean host structure */
155 // * \brief Returns a dict of all hosts.
157 // * \return List of all hosts (as a #xbt_dict_t)
159 //xbt_dict_t SIMIX_host_get_dict(void)
161 // xbt_dict_t host_dict = xbt_dict_new_homogeneous(NULL);
162 // xbt_lib_cursor_t cursor = NULL;
163 // char *name = NULL;
164 // void **host = NULL;
166 // xbt_lib_foreach(host_lib, cursor, name, host){
167 // if(host[SIMIX_HOST_LEVEL])
168 // xbt_dict_set(host_dict,name,host[SIMIX_HOST_LEVEL], NULL);
172 smx_host_t SIMIX_pre_host_get_by_name(smx_simcall_t simcall, const char *name){
173 return SIMIX_host_get_by_name(name);
175 smx_host_t SIMIX_host_get_by_name(const char *name){
176 xbt_assert(((simix_global != NULL)
177 && (host_lib != NULL)),
178 "Environment not set yet");
180 return xbt_lib_get_elm_or_null(host_lib, name);
183 smx_host_t SIMIX_host_self(void)
185 smx_process_t process = SIMIX_process_self();
186 return (process == NULL) ? NULL : SIMIX_process_get_host(process);
189 const char* SIMIX_pre_host_self_get_name(smx_simcall_t simcall){
190 return SIMIX_host_self_get_name();
192 /* needs to be public and without simcall because it is called
193 by exceptions and logging events */
194 const char* SIMIX_host_self_get_name(void)
196 smx_host_t host = SIMIX_host_self();
197 if (host == NULL || SIMIX_process_self() == simix_global->maestro_process)
200 return SIMIX_host_get_name(host);
203 const char* SIMIX_pre_host_get_name(smx_simcall_t simcall, smx_host_t host){
204 return SIMIX_host_get_name(host);
206 const char* SIMIX_host_get_name(smx_host_t host){
207 xbt_assert((host != NULL), "Invalid parameters");
209 return sg_host_name(host);
212 xbt_dict_t SIMIX_pre_host_get_properties(smx_simcall_t simcall, smx_host_t host){
213 return SIMIX_host_get_properties(host);
215 xbt_dict_t SIMIX_host_get_properties(smx_host_t host){
216 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
218 return surf_resource_get_properties(surf_workstation_resource_priv(host));
221 double SIMIX_pre_host_get_speed(smx_simcall_t simcall, smx_host_t host){
222 return SIMIX_host_get_speed(host);
224 double SIMIX_host_get_speed(smx_host_t host){
225 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
226 return surf_workstation_get_speed(host, 1.0);
229 int SIMIX_pre_host_get_core(smx_simcall_t simcall, smx_host_t host){
230 return SIMIX_host_get_core(host);
232 int SIMIX_host_get_core(smx_host_t host){
233 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
235 return surf_workstation_get_core(host);
238 xbt_swag_t SIMIX_pre_host_get_process_list(smx_simcall_t simcall, smx_host_t host){
239 return SIMIX_host_get_process_list(host);
242 xbt_swag_t SIMIX_host_get_process_list(smx_host_t host){
243 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
244 smx_host_priv_t host_priv = SIMIX_host_priv(host);
246 return host_priv->process_list;
250 double SIMIX_pre_host_get_available_speed(smx_simcall_t simcall, smx_host_t host){
251 return SIMIX_host_get_available_speed(host);
253 double SIMIX_host_get_available_speed(smx_host_t host){
254 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
256 return surf_workstation_get_available_speed(host);
259 double SIMIX_pre_host_get_current_power_peak(smx_simcall_t simcall, smx_host_t host){
260 return SIMIX_host_get_current_power_peak(host);
262 double SIMIX_host_get_current_power_peak(smx_host_t host) {
263 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
264 return surf_workstation_get_current_power_peak(host);
267 double SIMIX_pre_host_get_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
268 return SIMIX_host_get_power_peak_at(host, pstate_index);
270 double SIMIX_host_get_power_peak_at(smx_host_t host, int pstate_index) {
271 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
273 return surf_workstation_get_power_peak_at(host, pstate_index);
276 int SIMIX_pre_host_get_nb_pstates(smx_simcall_t simcall, smx_host_t host){
277 return SIMIX_host_get_nb_pstates(host);
279 int SIMIX_host_get_nb_pstates(smx_host_t host) {
280 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
282 return surf_workstation_get_nb_pstates(host);
286 void SIMIX_pre_host_set_power_peak_at(smx_simcall_t simcall, smx_host_t host, int pstate_index){
287 SIMIX_host_set_power_peak_at(host, pstate_index);
289 void SIMIX_host_set_power_peak_at(smx_host_t host, int pstate_index) {
290 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
292 surf_workstation_set_power_peak_at(host, pstate_index);
295 double SIMIX_pre_host_get_consumed_energy(smx_simcall_t simcall, smx_host_t host){
296 return SIMIX_host_get_consumed_energy(host);
298 double SIMIX_host_get_consumed_energy(smx_host_t host) {
299 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
300 return surf_workstation_get_consumed_energy(host);
303 int SIMIX_pre_host_get_state(smx_simcall_t simcall, smx_host_t host){
304 return SIMIX_host_get_state(host);
306 int SIMIX_host_get_state(smx_host_t host){
307 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
309 return surf_resource_get_state(surf_workstation_resource_priv(host));
312 void _SIMIX_host_free_process_arg(void *data)
314 smx_process_arg_t arg = *(void**)data;
316 for (i = 0; i < arg->argc; i++)
317 xbt_free(arg->argv[i]);
323 * \brief Add a process to the list of the processes that the host will restart when it comes back
324 * This function add a process to the list of the processes that will be restarted when the host comes
325 * back. It is expected that this function is called when the host is down.
326 * The processes will only be restarted once, meaning that you will have to register the process
327 * again to restart the process again.
329 void SIMIX_host_add_auto_restart_process(smx_host_t host,
331 xbt_main_func_t code,
333 const char *hostname,
335 int argc, char **argv,
336 xbt_dict_t properties,
339 if (!SIMIX_host_priv(host)->auto_restart_processes) {
340 SIMIX_host_priv(host)->auto_restart_processes = xbt_dynar_new(sizeof(smx_process_arg_t),_SIMIX_host_free_process_arg);
342 smx_process_arg_t arg = xbt_new(s_smx_process_arg_t,1);
343 arg->name = xbt_strdup(name);
346 arg->hostname = hostname;
347 arg->kill_time = kill_time;
350 arg->argv = xbt_new(char*,argc + 1);
353 for (i = 0; i < argc; i++) {
354 arg->argv[i] = xbt_strdup(argv[i]);
356 arg->argv[argc] = NULL;
358 arg->properties = properties;
359 arg->auto_restart = auto_restart;
361 if( SIMIX_host_get_state(host) == SURF_RESOURCE_OFF
362 && !xbt_dict_get_or_null(watched_hosts_lib,sg_host_name(host))){
363 xbt_dict_set(watched_hosts_lib,sg_host_name(host),host,NULL);
364 XBT_DEBUG("Have pushed host %s to watched_hosts_lib because state == SURF_RESOURCE_OFF",sg_host_name(host));
366 xbt_dynar_push_as(SIMIX_host_priv(host)->auto_restart_processes,smx_process_arg_t,arg);
369 * \brief Restart the list of processes that have been registered to the host
371 void SIMIX_host_restart_processes(smx_host_t host)
374 smx_process_arg_t arg;
375 xbt_dynar_t process_list = SIMIX_host_priv(host)->auto_restart_processes;
379 xbt_dynar_foreach (process_list, cpt, arg) {
381 smx_process_t process;
383 XBT_DEBUG("Restarting Process %s(%s) right now", arg->argv[0], arg->hostname);
384 if (simix_global->create_process_function) {
385 simix_global->create_process_function(&process,
397 simcall_process_create(&process,
409 /* arg->argv is used by the process created above. Hide it to
410 * _SIMIX_host_free_process_arg() which is called by xbt_dynar_reset()
415 xbt_dynar_reset(process_list);
418 void SIMIX_host_autorestart(smx_host_t host)
420 if(simix_global->autorestart)
421 simix_global->autorestart(host);
423 xbt_die("No function for simix_global->autorestart");
426 smx_action_t SIMIX_pre_host_execute(smx_simcall_t simcall,const char *name,
427 smx_host_t host, double computation_amount, double priority, double bound, unsigned long affinity_mask){
428 return SIMIX_host_execute(name, host, computation_amount, priority, bound, affinity_mask);
430 smx_action_t SIMIX_host_execute(const char *name,
431 smx_host_t host, double computation_amount, double priority, double bound, unsigned long affinity_mask){
433 /* alloc structures and initialize */
434 smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
435 action->type = SIMIX_ACTION_EXECUTE;
436 action->name = xbt_strdup(name);
437 action->state = SIMIX_RUNNING;
438 action->execution.host = host;
441 action->category = NULL;
444 /* set surf's action */
445 if (!MC_is_active()) {
447 action->execution.surf_exec = surf_workstation_execute(host, computation_amount);
448 surf_action_set_data(action->execution.surf_exec, action);
449 surf_action_set_priority(action->execution.surf_exec, priority);
451 /* Note (hypervisor): for multicore, the bound value being passed to the
452 * surf layer should not be zero (i.e., unlimited). It should be the
453 * capacity of a CPU core. */
455 surf_cpu_action_set_bound(action->execution.surf_exec, SIMIX_host_get_speed(host));
457 surf_cpu_action_set_bound(action->execution.surf_exec, bound);
459 if (affinity_mask != 0) {
460 /* just a double check to confirm that this host is the host where this task is running. */
461 xbt_assert(action->execution.host == host);
462 surf_cpu_action_set_affinity(action->execution.surf_exec, host, affinity_mask);
466 XBT_DEBUG("Create execute action %p: %s", action, action->name);
471 smx_action_t SIMIX_pre_host_parallel_execute(smx_simcall_t simcall, const char *name,
472 int host_nb, smx_host_t *host_list,
473 double *computation_amount, double *communication_amount,
474 double amount, double rate){
475 return SIMIX_host_parallel_execute(name, host_nb, host_list, computation_amount,
476 communication_amount, amount, rate);
478 smx_action_t SIMIX_host_parallel_execute(const char *name,
479 int host_nb, smx_host_t *host_list,
480 double *computation_amount, double *communication_amount,
481 double amount, double rate){
483 void **workstation_list = NULL;
486 /* alloc structures and initialize */
487 smx_action_t action = xbt_mallocator_get(simix_global->action_mallocator);
488 action->type = SIMIX_ACTION_PARALLEL_EXECUTE;
489 action->name = xbt_strdup(name);
490 action->state = SIMIX_RUNNING;
491 action->execution.host = NULL; /* FIXME: do we need the list of hosts? */
494 action->category = NULL;
497 /* set surf's action */
498 workstation_list = xbt_new0(void *, host_nb);
499 for (i = 0; i < host_nb; i++)
500 workstation_list[i] = surf_workstation_resource_priv(host_list[i]);
503 /* FIXME: what happens if host_list contains VMs and PMs. If
504 * execute_parallel_task() does not change the state of the model, we can mix
506 surf_model_t ws_model = surf_resource_model(host_list[0], SURF_WKS_LEVEL);
507 for (i = 1; i < host_nb; i++) {
508 surf_model_t ws_model_tmp = surf_resource_model(host_list[i], SURF_WKS_LEVEL);
509 if (ws_model_tmp != ws_model) {
510 XBT_CRITICAL("mixing VMs and PMs is not supported");
515 /* set surf's action */
516 if (!MC_is_active()) {
517 action->execution.surf_exec =
518 surf_workstation_model_execute_parallel_task((surf_workstation_model_t)surf_workstation_model,
519 host_nb, workstation_list, computation_amount, communication_amount, rate);
521 surf_action_set_data(action->execution.surf_exec, action);
523 XBT_DEBUG("Create parallel execute action %p", action);
528 void SIMIX_pre_host_execution_destroy(smx_simcall_t simcall, smx_action_t action){
529 SIMIX_host_execution_destroy(action);
531 void SIMIX_host_execution_destroy(smx_action_t action){
532 XBT_DEBUG("Destroy action %p", action);
534 if (action->execution.surf_exec) {
535 surf_action_unref(action->execution.surf_exec);
536 action->execution.surf_exec = NULL;
538 xbt_free(action->name);
539 xbt_mallocator_release(simix_global->action_mallocator, action);
542 void SIMIX_pre_host_execution_cancel(smx_simcall_t simcall, smx_action_t action){
543 SIMIX_host_execution_cancel(action);
545 void SIMIX_host_execution_cancel(smx_action_t action){
546 XBT_DEBUG("Cancel action %p", action);
548 if (action->execution.surf_exec)
549 surf_action_cancel(action->execution.surf_exec);
552 double SIMIX_pre_host_execution_get_remains(smx_simcall_t simcall, smx_action_t action){
553 return SIMIX_host_execution_get_remains(action);
555 double SIMIX_host_execution_get_remains(smx_action_t action){
558 if (action->state == SIMIX_RUNNING)
559 result = surf_action_get_remains(action->execution.surf_exec);
564 e_smx_state_t SIMIX_pre_host_execution_get_state(smx_simcall_t simcall, smx_action_t action){
565 return SIMIX_host_execution_get_state(action);
567 e_smx_state_t SIMIX_host_execution_get_state(smx_action_t action){
568 return action->state;
571 void SIMIX_pre_host_execution_set_priority(smx_simcall_t simcall, smx_action_t action,
573 SIMIX_host_execution_set_priority(action, priority);
575 void SIMIX_host_execution_set_priority(smx_action_t action, double priority){
577 if(action->execution.surf_exec)
578 surf_action_set_priority(action->execution.surf_exec, priority);
581 void SIMIX_pre_host_execution_set_bound(smx_simcall_t simcall, smx_action_t action,
583 SIMIX_host_execution_set_bound(action, bound);
585 void SIMIX_host_execution_set_bound(smx_action_t action, double bound){
587 if(action->execution.surf_exec)
588 surf_cpu_action_set_bound(action->execution.surf_exec, bound);
591 void SIMIX_pre_host_execution_set_affinity(smx_simcall_t simcall,
592 smx_action_t action, smx_host_t host, unsigned long mask){
593 SIMIX_host_execution_set_affinity(action, host, mask);
595 void SIMIX_host_execution_set_affinity(smx_action_t action, smx_host_t host, unsigned long mask){
596 xbt_assert(action->type == SIMIX_ACTION_EXECUTE);
598 if (action->execution.surf_exec) {
599 /* just a double check to confirm that this host is the host where this task is running. */
600 xbt_assert(action->execution.host == host);
601 surf_cpu_action_set_affinity(action->execution.surf_exec, host, mask);
605 void SIMIX_pre_host_execution_wait(smx_simcall_t simcall, smx_action_t action){
607 XBT_DEBUG("Wait for execution of action %p, state %d", action, (int)action->state);
609 /* Associate this simcall to the action */
610 xbt_fifo_push(action->simcalls, simcall);
611 simcall->issuer->waiting_action = action;
613 /* set surf's action */
614 if (MC_is_active()) {
615 action->state = SIMIX_DONE;
616 SIMIX_execution_finish(action);
620 /* If the action is already finished then perform the error handling */
621 if (action->state != SIMIX_RUNNING)
622 SIMIX_execution_finish(action);
625 void SIMIX_host_execution_suspend(smx_action_t action)
627 if(action->execution.surf_exec)
628 surf_action_suspend(action->execution.surf_exec);
631 void SIMIX_host_execution_resume(smx_action_t action)
633 if(action->execution.surf_exec)
634 surf_action_resume(action->execution.surf_exec);
637 void SIMIX_execution_finish(smx_action_t action)
639 xbt_fifo_item_t item;
640 smx_simcall_t simcall;
642 xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
644 switch (action->state) {
647 /* do nothing, action done */
648 XBT_DEBUG("SIMIX_execution_finished: execution successful");
652 XBT_DEBUG("SIMIX_execution_finished: host '%s' failed", sg_host_name(simcall->issuer->smx_host));
653 simcall->issuer->context->iwannadie = 1;
654 SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
658 XBT_DEBUG("SIMIX_execution_finished: execution canceled");
659 SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
663 xbt_die("Internal error in SIMIX_execution_finish: unexpected action state %d",
666 /* check if the host is down */
667 if (surf_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
668 simcall->issuer->context->iwannadie = 1;
671 simcall->issuer->waiting_action = NULL;
672 simcall_host_execution_wait__set__result(simcall, action->state);
673 SIMIX_simcall_answer(simcall);
676 /* We no longer need it */
677 SIMIX_host_execution_destroy(action);
681 void SIMIX_post_host_execute(smx_action_t action)
683 if (action->type == SIMIX_ACTION_EXECUTE && /* FIMXE: handle resource failure
684 * for parallel tasks too */
685 surf_resource_get_state(surf_workstation_resource_priv(action->execution.host)) == SURF_RESOURCE_OFF) {
686 /* If the host running the action failed, notice it so that the asking
687 * process can be killed if it runs on that host itself */
688 action->state = SIMIX_FAILED;
689 } else if (surf_action_get_state(action->execution.surf_exec) == SURF_ACTION_FAILED) {
690 /* If the host running the action didn't fail, then the action was
692 action->state = SIMIX_CANCELED;
694 action->state = SIMIX_DONE;
697 if (action->execution.surf_exec) {
698 surf_action_unref(action->execution.surf_exec);
699 action->execution.surf_exec = NULL;
702 /* If there are simcalls associated with the action, then answer them */
703 if (xbt_fifo_size(action->simcalls)) {
704 SIMIX_execution_finish(action);
710 void SIMIX_pre_set_category(smx_simcall_t simcall, smx_action_t action,
711 const char *category){
712 SIMIX_set_category(action, category);
714 void SIMIX_set_category(smx_action_t action, const char *category)
716 if (action->state != SIMIX_RUNNING) return;
717 if (action->type == SIMIX_ACTION_EXECUTE){
718 surf_action_set_category(action->execution.surf_exec, category);
719 }else if (action->type == SIMIX_ACTION_COMMUNICATE){
720 surf_action_set_category(action->comm.surf_comm, category);
726 * \brief Function to get the parameters of the given the SIMIX host.
728 * \param host the host to get_phys_host (a smx_host_t)
729 * \param param the parameter object space to be overwritten (a ws_params_t)
731 void SIMIX_host_get_params(smx_host_t ind_vm, ws_params_t params)
733 /* jump to ws_get_params(). */
734 surf_workstation_get_params(ind_vm, params);
737 void SIMIX_pre_host_get_params(smx_simcall_t simcall, smx_host_t ind_vm, ws_params_t params)
739 SIMIX_host_get_params(ind_vm, params);
742 void SIMIX_host_set_params(smx_host_t ind_vm, ws_params_t params)
744 /* jump to ws_set_params(). */
745 surf_workstation_set_params(ind_vm, params);
748 void SIMIX_pre_host_set_params(smx_simcall_t simcall, smx_host_t ind_vm, ws_params_t params)
750 SIMIX_host_set_params(ind_vm, params);
753 xbt_dict_t SIMIX_pre_host_get_mounted_storage_list(smx_simcall_t simcall, smx_host_t host){
754 return SIMIX_host_get_mounted_storage_list(host);
757 xbt_dict_t SIMIX_host_get_mounted_storage_list(smx_host_t host){
758 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
760 return surf_workstation_get_mounted_storage_list(host);
763 xbt_dynar_t SIMIX_pre_host_get_attached_storage_list(smx_simcall_t simcall, smx_host_t host){
764 return SIMIX_host_get_attached_storage_list(host);
767 xbt_dynar_t SIMIX_host_get_attached_storage_list(smx_host_t host){
768 xbt_assert((host != NULL), "Invalid parameters (simix host is NULL)");
770 return surf_workstation_get_attached_storage_list(host);