X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/83c1f3bcb7ec8d6219ce4af96b06ac35a172a7ba..54b36b81cc3bd164e2a77326cd59011652d612c0:/src/surf/cpu.c

diff --git a/src/surf/cpu.c b/src/surf/cpu.c
index 83dd5bc370..463d81ff6d 100644
--- a/src/surf/cpu.c
+++ b/src/surf/cpu.c
@@ -1,138 +1,93 @@
-/* Authors: Arnaud Legrand                                                  */
+/* 	$Id$	 */
+
+/* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
 
 /* This program is free software; you can redistribute it and/or modify it
-   under the terms of the license (GNU LGPL) which comes with this package. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "cpu_private.h"
-#include "xbt/dict.h"
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(cpu, surf ,"Logging specific to the SURF CPU module");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(cpu, surf,
+				"Logging specific to the SURF CPU module");
 
 surf_cpu_resource_t surf_cpu_resource = NULL;
 
-static xbt_dict_t cpu_set = NULL;
-
-/* power_scale is the basic power of the cpu when the cpu is
-   completely available. initial_power is therefore expected to be
-   comprised between 0.0 and 1.0, just as the values of power_trace.
-   state_trace values mean SURF_CPU_ON if >0 and SURF_CPU_OFF
-   otherwise.
-*/
-
-static void cpu_free(void *CPU){
-  cpu_t cpu = CPU;
-
-/* lmm_constraint_free(maxmin_system,cpu->constraint); */
-/* Clean somewhere else ! */
+xbt_dict_t cpu_set = NULL;
 
+static void cpu_free(void *cpu)
+{
+  xbt_free(((cpu_Cas01_t)cpu)->name);
   xbt_free(cpu);
 }
 
-static void *cpu_new(const char *name, xbt_maxmin_float_t power_scale,
-		      xbt_maxmin_float_t initial_power, tmgr_trace_t power_trace,
-		      e_surf_cpu_state_t initial_state, tmgr_trace_t state_trace)
+static cpu_Cas01_t cpu_new(char *name, double power_scale,
+		     double power_initial,
+		     tmgr_trace_t power_trace,
+		     e_surf_cpu_state_t state_initial,
+		     tmgr_trace_t state_trace)
 {
-  cpu_t cpu = xbt_new0(s_cpu_t,1);
+  cpu_Cas01_t cpu = xbt_new0(s_cpu_Cas01_t, 1);
 
   cpu->resource = (surf_resource_t) surf_cpu_resource;
   cpu->name = name;
   cpu->power_scale = power_scale;
-  cpu->current_power = initial_power;
-/*   cpu->power_trace = power_trace; */
-  if(power_trace) 
-    cpu->power_event = tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
+  xbt_assert0(cpu->power_scale>0,"Power has to be >0");
+  cpu->power_current = power_initial;
+  if (power_trace)
+    cpu->power_event =
+	tmgr_history_add_trace(history, power_trace, 0.0, 0, cpu);
 
-  cpu->current_state = initial_state;
-/*   cpu->state_trace = state_trace; */
-  if(state_trace) 
-    cpu->state_event = tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
+  cpu->state_current = state_initial;
+  if (state_trace)
+    cpu->state_event =
+	tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
 
-  cpu->constraint = lmm_constraint_new(maxmin_system, cpu, cpu->current_power * cpu->power_scale);
+  cpu->constraint =
+      lmm_constraint_new(maxmin_system, cpu,
+			 cpu->power_current * cpu->power_scale);
 
   xbt_dict_set(cpu_set, name, cpu, cpu_free);
 
   return cpu;
 }
 
-/*  
-   Semantic:  name       scale     initial     power     initial     state
-                                    power      trace      state      trace
-   
-   Token:   TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
-   Type:     string      float      float      string     ON/OFF     string
-*/
-
-static void parse_host(void)
+static void parse_cpu(void)
 {
-  e_surf_token_t token;
-  char *name = NULL; 
-  xbt_maxmin_float_t power_scale = 0.0;
-  xbt_maxmin_float_t initial_power = 0.0;
-  tmgr_trace_t power_trace = NULL;;
-  e_surf_cpu_state_t initial_state = SURF_CPU_OFF;
+  char *name = NULL;
+  double power_scale = 0.0;
+  double power_initial = 0.0;
+  tmgr_trace_t power_trace = NULL;
+  e_surf_cpu_state_t state_initial = SURF_CPU_OFF;
   tmgr_trace_t state_trace = NULL;
 
-  name=xbt_strdup(surf_parse_text);
-
-  token=surf_parse(); /* power_scale */
-  xbt_assert1((token==TOKEN_WORD),"Parse error line %d",line_pos);
-  xbt_assert2((sscanf(surf_parse_text,XBT_MAXMIN_FLOAT_T, &power_scale)==1),
-    "Parse error line %d : %s not a number",line_pos,surf_parse_text);
-
-  token=surf_parse(); /* initial_power */
-  xbt_assert1((token==TOKEN_WORD),"Parse error line %d",line_pos);
-  xbt_assert2((sscanf(surf_parse_text,XBT_MAXMIN_FLOAT_T, &initial_power)==1),
-    "Parse error line %d : %s not a number",line_pos,surf_parse_text);
-
-  token=surf_parse(); /* power_trace */
-  xbt_assert1((token==TOKEN_WORD),"Parse error line %d",line_pos);
-  if(strcmp(surf_parse_text,"")==0) power_trace = NULL;
-  else power_trace = tmgr_trace_new(surf_parse_text);
-
-  token=surf_parse(); /* initial_state */
-  xbt_assert1((token==TOKEN_WORD),"Parse error line %d",line_pos);
-  if(strcmp(surf_parse_text,"ON")==0) initial_state = SURF_CPU_ON;
-  else if(strcmp(surf_parse_text,"OFF")==0) initial_state = SURF_CPU_OFF;
-  else {
-    CRITICAL2("Invalid cpu state (line %d): %s neq ON or OFF\n",line_pos, 
-	      surf_parse_text);
-    xbt_abort();
-  }
+  name = xbt_strdup(A_cpu_name);
+  surf_parse_get_double(&power_scale,A_cpu_power);
+  surf_parse_get_double(&power_initial,A_cpu_availability);
+  surf_parse_get_trace(&power_trace,A_cpu_availability_file);
 
-  token=surf_parse(); /* state_trace */
-  xbt_assert1((token==TOKEN_WORD),"Parse error line %d",line_pos);
-  if(strcmp(surf_parse_text,"")==0) state_trace = NULL;
-  else state_trace = tmgr_trace_new(surf_parse_text);
+  xbt_assert0((A_cpu_state==A_cpu_state_ON)||(A_cpu_state==A_cpu_state_OFF),
+	      "Invalid state")
+  if (A_cpu_state==A_cpu_state_ON) state_initial = SURF_CPU_ON;
+  if (A_cpu_state==A_cpu_state_OFF) state_initial = SURF_CPU_OFF;
+  surf_parse_get_trace(&state_trace,A_cpu_state_file);
 
-  cpu_new(name, power_scale, initial_power, power_trace, initial_state, state_trace);
+  cpu_new(name, power_scale, power_initial, power_trace, state_initial,
+	  state_trace);
 }
 
 static void parse_file(const char *file)
 {
-  e_surf_token_t token;
-
-  find_section(file,"CPU");
-
-  while(1) {
-    token=surf_parse();
-
-    if(token==TOKEN_END_SECTION) break;
-    if(token==TOKEN_NEWLINE) continue;
-    
-    if(token==TOKEN_WORD) parse_host();
-    else {
-      CRITICAL1("Parse error line %d\n",line_pos);
-      xbt_abort();
-    }
-  }
-
-  close_section("CPU");  
+  surf_parse_reset_parser();
+  ETag_cpu_fun=parse_cpu;
+  surf_parse_open(file);
+  xbt_assert1((!surf_parse()),"Parse error in %s",file);
+  surf_parse_close();
 }
 
 static void *name_service(const char *name)
 {
-  void *cpu=NULL;
-  
+  void *cpu = NULL;
+
   xbt_dict_get(cpu_set, name, &cpu);
 
   return cpu;
@@ -140,20 +95,20 @@ static void *name_service(const char *name)
 
 static const char *get_resource_name(void *resource_id)
 {
-  return ((cpu_t) resource_id)->name;
+  return ((cpu_Cas01_t) resource_id)->name;
 }
 
 static int resource_used(void *resource_id)
 {
-  return lmm_constraint_used(maxmin_system, ((cpu_t)resource_id)->constraint);
+  return lmm_constraint_used(maxmin_system,
+			     ((cpu_Cas01_t) resource_id)->constraint);
 }
 
 static void action_free(surf_action_t action)
 {
-  surf_action_cpu_t Action = (surf_action_cpu_t) action;
-
-  xbt_swag_remove(action,action->state_set);
-  lmm_variable_free(maxmin_system,Action->variable);
+  xbt_swag_remove(action, action->state_set);
+  if(((surf_action_cpu_Cas01_t)action)->variable)
+    lmm_variable_free(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable);
   xbt_free(action);
 
   return;
@@ -169,127 +124,164 @@ static void action_recycle(surf_action_t action)
   return;
 }
 
-static void action_change_state(surf_action_t action, e_surf_action_state_t state)
+static void action_change_state(surf_action_t action,
+				e_surf_action_state_t state)
 {
+  if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED))
+    if(((surf_action_cpu_Cas01_t)action)->variable) {
+      lmm_variable_disable(maxmin_system, ((surf_action_cpu_Cas01_t)action)->variable);
+      ((surf_action_cpu_Cas01_t)action)->variable = NULL;
+    }
+
   surf_action_change_state(action, state);
   return;
 }
 
-static xbt_heap_float_t share_resources(xbt_heap_float_t now)
+static double share_resources(double now)
 {
-  surf_action_cpu_t action = NULL;
-  xbt_swag_t running_actions= surf_cpu_resource->common_public->states.running_action_set;
-  xbt_maxmin_float_t min = -1;
-  xbt_maxmin_float_t value = -1;
-  lmm_solve(maxmin_system);  
-
-  action = xbt_swag_getFirst(running_actions);
-  if(!action) return 0.0;
-  value = lmm_variable_getvalue(action->variable);
-  min = action->generic_action.remains / value ;
-
-  xbt_swag_foreach(action,running_actions) {
-    value = action->generic_action.remains / 
-      lmm_variable_getvalue(action->variable);
-    if(value<min) min=value;
-  }
-
-  return min;
+  s_surf_action_cpu_Cas01_t action;
+  return generic_maxmin_share_resources(surf_cpu_resource->common_public->
+					states.running_action_set,
+					xbt_swag_offset(action, variable));
 }
 
-static void update_actions_state(xbt_heap_float_t now,
-				 xbt_heap_float_t delta)
+static void update_actions_state(double now, double delta)
 {
-  surf_action_cpu_t action = NULL;
-  surf_action_cpu_t next_action = NULL;
-  xbt_swag_t running_actions= surf_cpu_resource->common_public->states.running_action_set;
-  xbt_swag_t failed_actions= surf_cpu_resource->common_public->states.failed_action_set;
+  surf_action_cpu_Cas01_t action = NULL;
+  surf_action_cpu_Cas01_t next_action = NULL;
+  xbt_swag_t running_actions =
+      surf_cpu_resource->common_public->states.running_action_set;
+  xbt_swag_t failed_actions =
+      surf_cpu_resource->common_public->states.failed_action_set;
 
   xbt_swag_foreach_safe(action, next_action, running_actions) {
-    action->generic_action.remains -= 
-      lmm_variable_getvalue(action->variable)*delta;
-/*     if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
-    if(action->generic_action.remains<=0) {
-      action_change_state((surf_action_t)action, SURF_ACTION_DONE);
-    } else { /* Need to check that none of the resource has failed*/
+    surf_double_update(&(action->generic_action.remains),
+	lmm_variable_getvalue(action->variable) * delta);
+    if (action->generic_action.max_duration != NO_MAX_DURATION)
+      surf_double_update(&(action->generic_action.max_duration), delta);
+    if ((action->generic_action.remains <= 0) && 
+	(lmm_get_variable_weight(action->variable)>0)) {
+      action->generic_action.finish = surf_get_clock();
+      action_change_state((surf_action_t) action, SURF_ACTION_DONE);
+    } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
+	       (action->generic_action.max_duration <= 0)) {
+      action->generic_action.finish = surf_get_clock();
+      action_change_state((surf_action_t) action, SURF_ACTION_DONE);
+    } else {			/* Need to check that none of the resource has failed */
       lmm_constraint_t cnst = NULL;
-      int i=0;
-      cpu_t cpu = NULL;
+      int i = 0;
+      cpu_Cas01_t cpu = NULL;
 
-      while((cnst=lmm_get_cnst_from_var(maxmin_system, action->variable, i++))) {
+      while ((cnst =
+	      lmm_get_cnst_from_var(maxmin_system, action->variable,
+				    i++))) {
 	cpu = lmm_constraint_id(cnst);
-	if(cpu->current_state==SURF_CPU_OFF) {
- 	  action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
+	if (cpu->state_current == SURF_CPU_OFF) {
+	  action->generic_action.finish = surf_get_clock();
+	  action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
 	  break;
 	}
       }
     }
   }
 
-  xbt_swag_foreach_safe(action, next_action, failed_actions) {
-    lmm_variable_disable(maxmin_system, action->variable);
-  }
-
   return;
 }
 
 static void update_resource_state(void *id,
-				  tmgr_trace_event_t event_type, 
-				  xbt_maxmin_float_t value)
+				  tmgr_trace_event_t event_type,
+				  double value)
 {
-  cpu_t cpu = id;
-  
-  printf("[" XBT_HEAP_FLOAT_T "] Asking to update \"%s\" with value " XBT_MAXMIN_FLOAT_T " for event %p\n",
-	 surf_get_clock(), cpu->name, value, event_type);
-  
-  if(event_type==cpu->power_event) {
-    cpu->current_power = value;
-    lmm_update_constraint_bound(cpu->constraint,cpu->current_power * cpu->power_scale);
-  } else if (event_type==cpu->state_event) {
-    if(value>0) cpu->current_state = SURF_CPU_ON;
-    else cpu->current_state = SURF_CPU_OFF;
-  } else {CRITICAL0("Unknown event ! \n");xbt_abort();}
+  cpu_Cas01_t cpu = id;
+
+  if (event_type == cpu->power_event) {
+    cpu->power_current = value;
+    lmm_update_constraint_bound(maxmin_system, cpu->constraint,
+				cpu->power_current * cpu->power_scale);
+  } else if (event_type == cpu->state_event) {
+    if (value > 0)
+      cpu->state_current = SURF_CPU_ON;
+    else
+      cpu->state_current = SURF_CPU_OFF;
+  } else {
+    CRITICAL0("Unknown event ! \n");
+    xbt_abort();
+  }
 
   return;
 }
 
-static surf_action_t execute(void *cpu, xbt_maxmin_float_t size)
+static surf_action_t execute(void *cpu, double size)
 {
-  surf_action_cpu_t action = NULL;
-  cpu_t CPU = cpu;
-  
-  action=xbt_new0(s_surf_action_cpu_t,1);
-
-  action->generic_action.cost=size;
-  action->generic_action.remains=size;  
-  action->generic_action.start=-1.0;
-  action->generic_action.finish=-1.0;
-  action->generic_action.callback=cpu;
-  action->generic_action.resource_type=(surf_resource_t)surf_cpu_resource;
-
-  if(CPU->current_state==SURF_CPU_ON) 
-    action->generic_action.state_set=surf_cpu_resource->common_public->states.running_action_set;
-  else 
-    action->generic_action.state_set=surf_cpu_resource->common_public->states.failed_action_set;
-  xbt_swag_insert(action,action->generic_action.state_set);
+  surf_action_cpu_Cas01_t action = NULL;
+  cpu_Cas01_t CPU = cpu;
+
+  action = xbt_new0(s_surf_action_cpu_Cas01_t, 1);
+
+  action->generic_action.cost = size;
+  action->generic_action.remains = size;
+  action->generic_action.max_duration = NO_MAX_DURATION;
+  action->generic_action.start = surf_get_clock();
+  action->generic_action.finish = -1.0;
+  action->generic_action.resource_type =
+      (surf_resource_t) surf_cpu_resource;
+
+  if (CPU->state_current == SURF_CPU_ON)
+    action->generic_action.state_set =
+	surf_cpu_resource->common_public->states.running_action_set;
+  else
+    action->generic_action.state_set =
+	surf_cpu_resource->common_public->states.failed_action_set;
+  xbt_swag_insert(action, action->generic_action.state_set);
 
   action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0, 1);
-  lmm_expand(maxmin_system, ((cpu_t)cpu)->constraint, action->variable, 1.0);
+  lmm_expand(maxmin_system, CPU->constraint, action->variable,
+	     1.0);
 
   return (surf_action_t) action;
 }
 
+static surf_action_t action_sleep(void *cpu, double duration)
+{
+  surf_action_cpu_Cas01_t action = NULL;
+
+  action = (surf_action_cpu_Cas01_t) execute(cpu, 1.0);
+  action->generic_action.max_duration = duration;
+  lmm_update_variable_weight(maxmin_system, action->variable, 0.0);
+
+  return (surf_action_t) action;
+}
+
+static void action_suspend(surf_action_t action)
+{
+  lmm_update_variable_weight(maxmin_system,
+			     ((surf_action_cpu_Cas01_t) action)->variable, 0.0);
+}
+
+static void action_resume(surf_action_t action)
+{
+  lmm_update_variable_weight(maxmin_system,
+			     ((surf_action_cpu_Cas01_t) action)->variable, 1.0);
+}
+
+static int action_is_suspended(surf_action_t action)
+{
+  return (lmm_get_variable_weight(((surf_action_cpu_Cas01_t) action)->variable) == 0.0);
+}
+
 static e_surf_cpu_state_t get_state(void *cpu)
 {
-  return SURF_CPU_OFF;
+  return ((cpu_Cas01_t) cpu)->state_current;
 }
 
 static void finalize(void)
 {
   xbt_dict_free(&cpu_set);
   xbt_swag_free(surf_cpu_resource->common_public->states.ready_action_set);
-  xbt_swag_free(surf_cpu_resource->common_public->states.running_action_set);
-  xbt_swag_free(surf_cpu_resource->common_public->states.failed_action_set);
+  xbt_swag_free(surf_cpu_resource->common_public->states.
+		running_action_set);
+  xbt_swag_free(surf_cpu_resource->common_public->states.
+		failed_action_set);
   xbt_swag_free(surf_cpu_resource->common_public->states.done_action_set);
   xbt_free(surf_cpu_resource->common_public);
   xbt_free(surf_cpu_resource->common_private);
@@ -303,46 +295,77 @@ static void surf_cpu_resource_init_internal(void)
 {
   s_surf_action_t action;
 
-  surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t,1);
-  
-  surf_cpu_resource->common_private = xbt_new0(s_surf_resource_private_t,1);
-  surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t,1);
-/*   surf_cpu_resource->extension_private = xbt_new0(s_surf_cpu_resource_extension_private_t,1); */
-  surf_cpu_resource->extension_public = xbt_new0(s_surf_cpu_resource_extension_public_t,1);
-
-  surf_cpu_resource->common_public->states.ready_action_set=
-    xbt_swag_new(xbt_swag_offset(action,state_hookup));
-  surf_cpu_resource->common_public->states.running_action_set=
-    xbt_swag_new(xbt_swag_offset(action,state_hookup));
-  surf_cpu_resource->common_public->states.failed_action_set=
-    xbt_swag_new(xbt_swag_offset(action,state_hookup));
-  surf_cpu_resource->common_public->states.done_action_set=
-    xbt_swag_new(xbt_swag_offset(action,state_hookup));
+  surf_cpu_resource = xbt_new0(s_surf_cpu_resource_t, 1);
+
+  surf_cpu_resource->common_private =
+      xbt_new0(s_surf_resource_private_t, 1);
+  surf_cpu_resource->common_public = xbt_new0(s_surf_resource_public_t, 1);
+
+  surf_cpu_resource->extension_public =
+      xbt_new0(s_surf_cpu_resource_extension_public_t, 1);
+
+  surf_cpu_resource->common_public->states.ready_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
+  surf_cpu_resource->common_public->states.running_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
+  surf_cpu_resource->common_public->states.failed_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
+  surf_cpu_resource->common_public->states.done_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
 
   surf_cpu_resource->common_public->name_service = name_service;
   surf_cpu_resource->common_public->get_resource_name = get_resource_name;
-  surf_cpu_resource->common_public->resource_used = resource_used;
-  surf_cpu_resource->common_public->action_get_state=surf_action_get_state;
+  surf_cpu_resource->common_public->action_get_state =
+      surf_action_get_state;
   surf_cpu_resource->common_public->action_free = action_free;
   surf_cpu_resource->common_public->action_cancel = action_cancel;
   surf_cpu_resource->common_public->action_recycle = action_recycle;
-  surf_cpu_resource->common_public->action_change_state = action_change_state;
+  surf_cpu_resource->common_public->action_change_state =
+      action_change_state;
+  surf_cpu_resource->common_public->action_set_data = surf_action_set_data;
+  surf_cpu_resource->common_public->name = "CPU";
 
+  surf_cpu_resource->common_private->resource_used = resource_used;
   surf_cpu_resource->common_private->share_resources = share_resources;
-  surf_cpu_resource->common_private->update_actions_state = update_actions_state;
-  surf_cpu_resource->common_private->update_resource_state = update_resource_state;
+  surf_cpu_resource->common_private->update_actions_state =
+      update_actions_state;
+  surf_cpu_resource->common_private->update_resource_state =
+      update_resource_state;
   surf_cpu_resource->common_private->finalize = finalize;
 
+  surf_cpu_resource->common_public->suspend = action_suspend;
+  surf_cpu_resource->common_public->resume = action_resume;
+  surf_cpu_resource->common_public->is_suspended = action_is_suspended;
+
   surf_cpu_resource->extension_public->execute = execute;
+  surf_cpu_resource->extension_public->sleep = action_sleep;
+
   surf_cpu_resource->extension_public->get_state = get_state;
 
   cpu_set = xbt_dict_new();
 
-  xbt_assert0(maxmin_system,"surf_init has to be called first!");
+  xbt_assert0(maxmin_system, "surf_init has to be called first!");
 }
 
-void surf_cpu_resource_init(const char* filename)
+/*********************************************************************/
+/* Basic sharing model for CPU: that is where all this started... ;) */
+/*********************************************************************/
+/* @InProceedings{casanova01simgrid, */
+/*   author =       "H. Casanova", */
+/*   booktitle =    "Proceedings of the IEEE Symposium on Cluster Computing */
+/*                  and the Grid (CCGrid'01)", */
+/*   publisher =    "IEEE Computer Society", */
+/*   title =        "Simgrid: {A} Toolkit for the Simulation of Application */
+/*                  Scheduling", */
+/*   year =         "2001", */
+/*   month =        may, */
+/*   note =         "Available at */
+/*                  \url{http://grail.sdsc.edu/papers/simgrid_ccgrid01.ps.gz}." */
+/* } */
+void surf_cpu_resource_init_Cas01(const char *filename)
 {
+  if (surf_cpu_resource)
+    return;
   surf_cpu_resource_init_internal();
   parse_file(filename);
   xbt_dynar_push(resource_list, &surf_cpu_resource);