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Direct context switching: clean the semantics of parmap
[simgrid.git] / src / surf / workstation_ptask_L07.c
index efd2ef5..3994355 100644 (file)
@@ -1,55 +1,49 @@
-/*     $Id$     */
-
-/* Copyright (c) 2007 Arnaud Legrand. All rights reserved.                  */
+/* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
+ * 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. */
 
 #include "xbt/ex.h"
+#include "xbt/str.h"
 #include "xbt/dict.h"
 #include "surf_private.h"
 
 typedef enum {
   SURF_WORKSTATION_RESOURCE_CPU,
   SURF_WORKSTATION_RESOURCE_LINK,
-} e_surf_workstation_resource_type_t;
+} e_surf_workstation_model_type_t;
 
 /**************************************/
 /********* cpu object *****************/
 /**************************************/
 typedef struct cpu_L07 {
-  surf_resource_t resource;    /* Do not move this field */
-  e_surf_workstation_resource_type_t type;     /* Do not move this field */
-  char *name;                  /* Do not move this field */
-  lmm_constraint_t constraint; /* Do not move this field */
+  s_surf_resource_t generic_resource;   /* Do not move this field: must match surf_resource_t */
+  e_surf_workstation_model_type_t type; /* Do not move this field: must match link_L07_t */
+  lmm_constraint_t constraint;  /* Do not move this field: must match link_L07_t */
   double power_scale;
   double power_current;
   tmgr_trace_event_t power_event;
-  e_surf_cpu_state_t state_current;
+  e_surf_resource_state_t state_current;
   tmgr_trace_event_t state_event;
-  int id;                      /* cpu and network card are a single object... */
+  int id;                       /* cpu and network card are a single object... */
 } s_cpu_L07_t, *cpu_L07_t;
 
 /**************************************/
 /*********** network object ***********/
 /**************************************/
 
-typedef struct network_link_L07 {
-  surf_resource_t resource;    /* Do not move this field */
-  e_surf_workstation_resource_type_t type;     /* Do not move this field */
-  char *name;                  /* Do not move this field */
-  lmm_constraint_t constraint; /* Do not move this field */
+typedef struct link_L07 {
+  s_surf_resource_t generic_resource;   /* Do not move this field: must match surf_resource_t */
+  e_surf_workstation_model_type_t type; /* Do not move this field: must match cpu_L07_t */
+  lmm_constraint_t constraint;  /* Do not move this field: must match cpu_L07_t */
+  double lat_current;
+  tmgr_trace_event_t lat_event;
   double bw_current;
   tmgr_trace_event_t bw_event;
-  e_surf_network_link_state_t state_current;
+  e_surf_resource_state_t state_current;
   tmgr_trace_event_t state_event;
-} s_network_link_L07_t, *network_link_L07_t;
-
-
-typedef struct s_route_L07 {
-  network_link_L07_t *links;
-  int size;
-} s_route_L07_t, *route_L07_t;
+} s_link_L07_t, *link_L07_t;
 
 /**************************************/
 /*************** actions **************/
@@ -57,6 +51,11 @@ typedef struct s_route_L07 {
 typedef struct surf_action_workstation_L07 {
   s_surf_action_t generic_action;
   lmm_variable_t variable;
+  int workstation_nb;
+  cpu_L07_t *workstation_list;
+  double *computation_amount;
+  double *communication_amount;
+  double latency;
   double rate;
   int suspended;
 } s_surf_action_workstation_L07_t, *surf_action_workstation_L07_t;
@@ -64,252 +63,334 @@ typedef struct surf_action_workstation_L07 {
 
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_workstation);
 
-static int nb_workstation = 0;
-static s_route_L07_t *routing_table = NULL;
-#define ROUTE(i,j) routing_table[(i)+(j)*nb_workstation]
-static network_link_L07_t loopback = NULL;
-static xbt_dict_t parallel_task_network_link_set = NULL;
+static int ptask_host_count = 0;
+static xbt_dict_t ptask_parallel_task_link_set = NULL;
 lmm_system_t ptask_maxmin_system = NULL;
 
-/**************************************/
-/******* Resource Public     **********/
-/**************************************/
 
-static void *name_service(const char *name)
+static void ptask_update_action_bound(surf_action_workstation_L07_t action)
 {
-  return xbt_dict_get_or_null(workstation_set, name);
-}
+  int workstation_nb = action->workstation_nb;
+  double lat_current = 0.0;
+  double lat_bound = -1.0;
+  int i, j;
+  unsigned int cpt;
+  link_L07_t link;
 
-static const char *get_resource_name(void *resource_id)
-{
-  /* We can freely cast as a cpu_L07_t because it has the same
-     prefix as network_link_L07_t. However, only cpu_L07_t
-     will theoretically be given as an argument here. */
-  return ((cpu_L07_t) resource_id)->name;
+  for (i = 0; i < workstation_nb; i++) {
+    for (j = 0; j < workstation_nb; j++) {
+      xbt_dynar_t route =
+          global_routing->get_route(surf_resource_name
+                                    (action->workstation_list[i]),
+                                    surf_resource_name(action->
+                                                       workstation_list
+                                                       [j]));
+
+      double lat = 0.0;
+
+      if (action->communication_amount[i * workstation_nb + j] > 0) {
+        xbt_dynar_foreach(route, cpt, link) {
+          lat += link->lat_current;
+        }
+        lat_current =
+            MAX(lat_current,
+                lat * action->communication_amount[i * workstation_nb +
+                                                   j]);
+      }
+    }
+  }
+  lat_bound = sg_tcp_gamma / (2.0 * lat_current);
+  XBT_DEBUG("action (%p) : lat_bound = %g", action, lat_bound);
+  if ((action->latency == 0.0) && (action->suspended == 0)) {
+    if (action->rate < 0)
+      lmm_update_variable_bound(ptask_maxmin_system, action->variable,
+                                lat_bound);
+    else
+      lmm_update_variable_bound(ptask_maxmin_system, action->variable,
+                                min(action->rate, lat_bound));
+  }
 }
 
-/* action_get_state is inherited from the surf module */
-
-static void action_use(surf_action_t action)
-{
-  action->using++;
-  return;
-}
+/**************************************/
+/******* Resource Public     **********/
+/**************************************/
 
-static int action_free(surf_action_t action)
+static int ptask_action_unref(surf_action_t action)
 {
-  action->using--;
+  action->refcount--;
 
-  if (!action->using) {
+  if (!action->refcount) {
     xbt_swag_remove(action, action->state_set);
     if (((surf_action_workstation_L07_t) action)->variable)
       lmm_variable_free(ptask_maxmin_system,
-                       ((surf_action_workstation_L07_t) action)->
-                       variable);
-    free(action);
+                        ((surf_action_workstation_L07_t)
+                         action)->variable);
+    free(((surf_action_workstation_L07_t) action)->workstation_list);
+    free(((surf_action_workstation_L07_t) action)->communication_amount);
+    free(((surf_action_workstation_L07_t) action)->computation_amount);
+    surf_action_free(&action);
     return 1;
   }
   return 0;
 }
 
-static void action_cancel(surf_action_t action)
-{
-  surf_action_change_state(action, SURF_ACTION_FAILED);
-  return;
-}
-
-static void action_recycle(surf_action_t action)
+static void ptask_action_cancel(surf_action_t action)
 {
-  DIE_IMPOSSIBLE;
+  surf_action_state_set(action, SURF_ACTION_FAILED);
   return;
 }
 
 /* action_change_state is inherited from the surf module */
 /* action_set_data is inherited from the surf module */
 
-static void action_suspend(surf_action_t action)
+static void ptask_action_suspend(surf_action_t action)
 {
-  XBT_IN1("(%p))", action);
+  XBT_IN("(%p))", action);
   if (((surf_action_workstation_L07_t) action)->suspended != 2) {
     ((surf_action_workstation_L07_t) action)->suspended = 1;
     lmm_update_variable_weight(ptask_maxmin_system,
-                              ((surf_action_workstation_L07_t)
-                               action)->variable, 0.0);
+                               ((surf_action_workstation_L07_t)
+                                action)->variable, 0.0);
   }
-  XBT_OUT;
+  XBT_OUT();
 }
 
-static void action_resume(surf_action_t action)
+static void ptask_action_resume(surf_action_t action)
 {
-  XBT_IN1("(%p)", action);
-  if (((surf_action_workstation_L07_t) action)->suspended != 2) {
-    lmm_update_variable_weight(ptask_maxmin_system,
-                              ((surf_action_workstation_L07_t)
-                               action)->variable, 1.0);
-    ((surf_action_workstation_L07_t) action)->suspended = 0;
+  surf_action_workstation_L07_t act =
+      (surf_action_workstation_L07_t) action;
+
+  XBT_IN("(%p)", act);
+  if (act->suspended != 2) {
+    lmm_update_variable_weight(ptask_maxmin_system, act->variable, 1.0);
+    act->suspended = 0;
   }
-  XBT_OUT;
+  XBT_OUT();
 }
 
-static int action_is_suspended(surf_action_t action)
+static int ptask_action_is_suspended(surf_action_t action)
 {
   return (((surf_action_workstation_L07_t) action)->suspended == 1);
 }
 
-static void action_set_max_duration(surf_action_t action, double duration)
-{                              /* FIXME: should inherit */
-  XBT_IN2("(%p,%g)", action, duration);
+static void ptask_action_set_max_duration(surf_action_t action,
+                                          double duration)
+{                               /* FIXME: should inherit */
+  XBT_IN("(%p,%g)", action, duration);
   action->max_duration = duration;
-  XBT_OUT;
+  XBT_OUT();
 }
 
 
-static void action_set_priority(surf_action_t action, double priority)
-{                              /* FIXME: should inherit */
-  XBT_IN2("(%p,%g)", action, priority);
+static void ptask_action_set_priority(surf_action_t action,
+                                      double priority)
+{                               /* FIXME: should inherit */
+  XBT_IN("(%p,%g)", action, priority);
   action->priority = priority;
-  XBT_OUT;
+  XBT_OUT();
+}
+
+static double ptask_action_get_remains(surf_action_t action)
+{
+  XBT_IN("(%p)", action);
+  return action->remains;
+  XBT_OUT();
 }
 
 /**************************************/
 /******* Resource Private    **********/
 /**************************************/
 
-static int resource_used(void *resource_id)
+static int ptask_resource_used(void *resource_id)
 {
-  /* We can freely cast as a network_link_L07_t because it has
+  /* We can freely cast as a link_L07_t because it has
      the same prefix as cpu_L07_t */
   return lmm_constraint_used(ptask_maxmin_system,
-                            ((network_link_L07_t) resource_id)->
-                            constraint);
+                             ((link_L07_t) resource_id)->constraint);
 
 }
 
-static double share_resources(double now)
+static double ptask_share_resources(double now)
 {
   s_surf_action_workstation_L07_t s_action;
+  surf_action_workstation_L07_t action = NULL;
 
   xbt_swag_t running_actions =
-      surf_workstation_resource->common_public->states.running_action_set;
-  double min = generic_maxmin_share_resources2(running_actions,
-                                              xbt_swag_offset(s_action,
-                                                              variable),
-                                              ptask_maxmin_system,
-                                              bottleneck_solve);
+      surf_workstation_model->states.running_action_set;
+  double min = generic_maxmin_share_resources(running_actions,
+                                              xbt_swag_offset(s_action,
+                                                              variable),
+                                              ptask_maxmin_system,
+                                              bottleneck_solve);
+
+  xbt_swag_foreach(action, running_actions) {
+    if (action->latency > 0) {
+      if (min < 0) {
+        min = action->latency;
+        XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
+               action->generic_action.start, min);
+      } else if (action->latency < min) {
+        min = action->latency;
+        XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
+               action->generic_action.start, min);
+      }
+    }
+  }
 
-  DEBUG1("min value : %f", min);
+  XBT_DEBUG("min value : %f", min);
 
   return min;
 }
 
-static void update_actions_state(double now, double delta)
+static void ptask_update_actions_state(double now, double delta)
 {
+  double deltap = 0.0;
   surf_action_workstation_L07_t action = NULL;
   surf_action_workstation_L07_t next_action = NULL;
   xbt_swag_t running_actions =
-      surf_workstation_resource->common_public->states.running_action_set;
+      surf_workstation_model->states.running_action_set;
 
   xbt_swag_foreach_safe(action, next_action, running_actions) {
-    DEBUG3("Action (%p) : remains (%g) updated by %g.",
-          action, action->generic_action.remains,
-          lmm_variable_getvalue(action->variable) * delta);
+    deltap = delta;
+    if (action->latency > 0) {
+      if (action->latency > deltap) {
+        double_update(&(action->latency), deltap);
+        deltap = 0.0;
+      } else {
+        double_update(&(deltap), action->latency);
+        action->latency = 0.0;
+      }
+      if ((action->latency == 0.0) && (action->suspended == 0)) {
+        ptask_update_action_bound(action);
+        lmm_update_variable_weight(ptask_maxmin_system, action->variable,
+                                   1.0);
+      }
+    }
+    XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
+           action, action->generic_action.remains,
+           lmm_variable_getvalue(action->variable) * delta);
     double_update(&(action->generic_action.remains),
-                 lmm_variable_getvalue(action->variable) * delta);
+                  lmm_variable_getvalue(action->variable) * delta);
 
     if (action->generic_action.max_duration != NO_MAX_DURATION)
       double_update(&(action->generic_action.max_duration), delta);
 
-    DEBUG2("Action (%p) : remains (%g).",
-          action, action->generic_action.remains);
+    XBT_DEBUG("Action (%p) : remains (%g).",
+           action, action->generic_action.remains);
     if ((action->generic_action.remains <= 0) &&
-       (lmm_get_variable_weight(action->variable) > 0)) {
+        (lmm_get_variable_weight(action->variable) > 0)) {
       action->generic_action.finish = surf_get_clock();
-      surf_action_change_state((surf_action_t) action, SURF_ACTION_DONE);
+      surf_action_state_set((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.max_duration <= 0)) {
       action->generic_action.finish = surf_get_clock();
-      surf_action_change_state((surf_action_t) action, SURF_ACTION_DONE);
+      surf_action_state_set((surf_action_t) action, SURF_ACTION_DONE);
     } else {
-      /* Need to check that none of the resource has failed */
+      /* Need to check that none of the model has failed */
       lmm_constraint_t cnst = NULL;
       int i = 0;
       void *constraint_id = NULL;
 
       while ((cnst =
-             lmm_get_cnst_from_var(ptask_maxmin_system, action->variable,
-                                   i++))) {
-       constraint_id = lmm_constraint_id(cnst);
+              lmm_get_cnst_from_var(ptask_maxmin_system, action->variable,
+                                    i++))) {
+        constraint_id = lmm_constraint_id(cnst);
 
-/*     if(((network_link_L07_t)constraint_id)->type== */
+/*     if(((link_L07_t)constraint_id)->type== */
 /*        SURF_WORKSTATION_RESOURCE_LINK) { */
-/*       DEBUG2("Checking for link %s (%p)", */
-/*              ((network_link_L07_t)constraint_id)->name, */
-/*              ((network_link_L07_t)constraint_id)); */
+/*       XBT_DEBUG("Checking for link %s (%p)", */
+/*              ((link_L07_t)constraint_id)->name, */
+/*              ((link_L07_t)constraint_id)); */
 /*     } */
 /*     if(((cpu_L07_t)constraint_id)->type== */
 /*        SURF_WORKSTATION_RESOURCE_CPU) { */
-/*       DEBUG3("Checking for cpu %s (%p) : %s", */
+/*       XBT_DEBUG("Checking for cpu %s (%p) : %s", */
 /*              ((cpu_L07_t)constraint_id)->name, */
 /*              ((cpu_L07_t)constraint_id), */
 /*              ((cpu_L07_t)constraint_id)->state_current==SURF_CPU_OFF?"Off":"On"); */
 /*     } */
 
-       if (((((network_link_L07_t) constraint_id)->type ==
-             SURF_WORKSTATION_RESOURCE_LINK) &&
-            (((network_link_L07_t) constraint_id)->state_current ==
-             SURF_NETWORK_LINK_OFF)) ||
-           ((((cpu_L07_t) constraint_id)->type ==
-             SURF_WORKSTATION_RESOURCE_CPU) &&
-            (((cpu_L07_t) constraint_id)->state_current ==
-             SURF_CPU_OFF))) {
-         DEBUG1("Action (%p) Failed!!", action);
-         action->generic_action.finish = surf_get_clock();
-         surf_action_change_state((surf_action_t) action,
-                                  SURF_ACTION_FAILED);
-         break;
-       }
+        if (((((link_L07_t) constraint_id)->type ==
+              SURF_WORKSTATION_RESOURCE_LINK) &&
+             (((link_L07_t) constraint_id)->state_current ==
+              SURF_RESOURCE_OFF)) ||
+            ((((cpu_L07_t) constraint_id)->type ==
+              SURF_WORKSTATION_RESOURCE_CPU) &&
+             (((cpu_L07_t) constraint_id)->state_current ==
+              SURF_RESOURCE_OFF))) {
+          XBT_DEBUG("Action (%p) Failed!!", action);
+          action->generic_action.finish = surf_get_clock();
+          surf_action_state_set((surf_action_t) action,
+                                SURF_ACTION_FAILED);
+          break;
+        }
       }
     }
   }
   return;
 }
 
-static void update_resource_state(void *id,
-                                 tmgr_trace_event_t event_type,
-                                 double value)
+static void ptask_update_resource_state(void *id,
+                                        tmgr_trace_event_t event_type,
+                                        double value, double date)
 {
   cpu_L07_t cpu = id;
-  network_link_L07_t nw_link = id;
+  link_L07_t nw_link = id;
 
   if (nw_link->type == SURF_WORKSTATION_RESOURCE_LINK) {
-    DEBUG2("Updating link %s (%p)", nw_link->name, nw_link);
+    XBT_DEBUG("Updating link %s (%p)", surf_resource_name(nw_link), nw_link);
     if (event_type == nw_link->bw_event) {
       nw_link->bw_current = value;
       lmm_update_constraint_bound(ptask_maxmin_system, nw_link->constraint,
-                                 nw_link->bw_current);
+                                  nw_link->bw_current);
+      if (tmgr_trace_event_free(event_type))
+        nw_link->bw_event = NULL;
+    } else if (event_type == nw_link->lat_event) {
+      lmm_variable_t var = NULL;
+      surf_action_workstation_L07_t action = NULL;
+      lmm_element_t elem = NULL;
+
+      nw_link->lat_current = value;
+      while ((var = lmm_get_var_from_cnst
+              (ptask_maxmin_system, nw_link->constraint, &elem))) {
+
+
+        action = lmm_variable_id(var);
+        ptask_update_action_bound(action);
+      }
+      if (tmgr_trace_event_free(event_type))
+        nw_link->lat_event = NULL;
+
     } else if (event_type == nw_link->state_event) {
       if (value > 0)
-       nw_link->state_current = SURF_NETWORK_LINK_ON;
+        nw_link->state_current = SURF_RESOURCE_ON;
       else
-       nw_link->state_current = SURF_NETWORK_LINK_OFF;
+        nw_link->state_current = SURF_RESOURCE_OFF;
+      if (tmgr_trace_event_free(event_type))
+        nw_link->state_event = NULL;
     } else {
-      CRITICAL0("Unknown event ! \n");
+      XBT_CRITICAL("Unknown event ! \n");
       xbt_abort();
     }
     return;
   } else if (cpu->type == SURF_WORKSTATION_RESOURCE_CPU) {
-    DEBUG3("Updating cpu %s (%p) with value %g", cpu->name, cpu, value);
+    XBT_DEBUG("Updating cpu %s (%p) with value %g", surf_resource_name(cpu),
+           cpu, value);
     if (event_type == cpu->power_event) {
       cpu->power_current = value;
       lmm_update_constraint_bound(ptask_maxmin_system, cpu->constraint,
-                                 cpu->power_current);
+                                  cpu->power_current * cpu->power_scale);
+      if (tmgr_trace_event_free(event_type))
+        cpu->power_event = NULL;
     } else if (event_type == cpu->state_event) {
       if (value > 0)
-       cpu->state_current = SURF_CPU_ON;
+        cpu->state_current = SURF_RESOURCE_ON;
       else
-       cpu->state_current = SURF_CPU_OFF;
+        cpu->state_current = SURF_RESOURCE_OFF;
+      if (tmgr_trace_event_free(event_type))
+        cpu->state_event = NULL;
     } else {
-      CRITICAL0("Unknown event ! \n");
+      XBT_CRITICAL("Unknown event ! \n");
       xbt_abort();
     }
     return;
@@ -319,37 +400,18 @@ static void update_resource_state(void *id,
   return;
 }
 
-static void finalize(void)
+static void ptask_finalize(void)
 {
-  int i, j;
+  if (ptask_parallel_task_link_set != NULL)
+    xbt_dict_free(&ptask_parallel_task_link_set);
 
-  xbt_dict_free(&network_link_set);
-  xbt_dict_free(&workstation_set);
-  if (parallel_task_network_link_set != NULL) {
-    xbt_dict_free(&parallel_task_network_link_set);
-  }
-  xbt_swag_free(surf_workstation_resource->common_public->states.
-               ready_action_set);
-  xbt_swag_free(surf_workstation_resource->common_public->states.
-               running_action_set);
-  xbt_swag_free(surf_workstation_resource->common_public->states.
-               failed_action_set);
-  xbt_swag_free(surf_workstation_resource->common_public->states.
-               done_action_set);
-
-  free(surf_workstation_resource->common_public);
-  free(surf_workstation_resource->common_private);
-  free(surf_workstation_resource->extension_public);
-
-  free(surf_workstation_resource);
-  surf_workstation_resource = NULL;
-
-  for (i = 0; i < nb_workstation; i++)
-    for (j = 0; j < nb_workstation; j++)
-      free(ROUTE(i, j).links);
-  free(routing_table);
-  routing_table = NULL;
-  nb_workstation = 0;
+  surf_model_exit(surf_workstation_model);
+  surf_workstation_model = NULL;
+  surf_model_exit(surf_network_model);
+  surf_network_model = NULL;
+  global_routing->finalize();
+
+  ptask_host_count = 0;
 
   if (ptask_maxmin_system) {
     lmm_system_free(ptask_maxmin_system);
@@ -361,105 +423,111 @@ static void finalize(void)
 /******* Resource Private    **********/
 /**************************************/
 
-static e_surf_cpu_state_t resource_get_state(void *cpu)
+static e_surf_resource_state_t ptask_resource_get_state(void *cpu)
 {
   return ((cpu_L07_t) cpu)->state_current;
 }
 
-static double get_speed(void *cpu, double load)
+static double ptask_get_speed(void *cpu, double load)
 {
   return load * (((cpu_L07_t) cpu)->power_scale);
 }
 
-static double get_available_speed(void *cpu)
+static double ptask_get_available_speed(void *cpu)
 {
   return ((cpu_L07_t) cpu)->power_current;
 }
 
-static surf_action_t execute_parallel_task(int workstation_nb,
-                                          void **workstation_list,
-                                          double *computation_amount,
-                                          double *communication_amount,
-                                          double amount, double rate)
+static surf_action_t ptask_execute_parallel_task(int workstation_nb,
+                                                 void **workstation_list,
+                                                 double
+                                                 *computation_amount, double
+                                                 *communication_amount,
+                                                 double amount,
+                                                 double rate)
 {
   surf_action_workstation_L07_t action = NULL;
-  int i, j, k;
+  int i, j;
+  unsigned int cpt;
   int nb_link = 0;
   int nb_host = 0;
+  double latency = 0.0;
 
-  if (parallel_task_network_link_set == NULL) {
-    parallel_task_network_link_set =
-       xbt_dict_new_ext(workstation_nb * workstation_nb * 10);
-  }
+  if (ptask_parallel_task_link_set == NULL)
+    ptask_parallel_task_link_set = xbt_dict_new();
+
+  xbt_dict_reset(ptask_parallel_task_link_set);
 
   /* Compute the number of affected resources... */
   for (i = 0; i < workstation_nb; i++) {
     for (j = 0; j < workstation_nb; j++) {
-      cpu_L07_t card_src = workstation_list[i];
-      cpu_L07_t card_dst = workstation_list[j];
-      int route_size = ROUTE(card_src->id, card_dst->id).size;
-      network_link_L07_t *route = ROUTE(card_src->id, card_dst->id).links;
+      link_L07_t link;
+      xbt_dynar_t route =
+          global_routing->get_route(surf_resource_name
+                                    (workstation_list[i]),
+                                    surf_resource_name(workstation_list
+                                                       [j]));
+      double lat = 0.0;
 
       if (communication_amount[i * workstation_nb + j] > 0)
-       for (k = 0; k < route_size; k++) {
-         xbt_dict_set(parallel_task_network_link_set, route[k]->name,
-                      route[k], NULL);
-       }
+        xbt_dynar_foreach(route, cpt, link) {
+        lat += link->lat_current;
+        xbt_dict_set(ptask_parallel_task_link_set,
+                     link->generic_resource.name, link, NULL);
+        }
+      latency = MAX(latency, lat);
     }
   }
-  nb_link = xbt_dict_length(parallel_task_network_link_set);
-  xbt_dict_reset(parallel_task_network_link_set);
+
+  nb_link = xbt_dict_length(ptask_parallel_task_link_set);
+  xbt_dict_reset(ptask_parallel_task_link_set);
 
   for (i = 0; i < workstation_nb; i++)
     if (computation_amount[i] > 0)
       nb_host++;
 
-  action = xbt_new0(s_surf_action_workstation_L07_t, 1);
-  DEBUG3("Creating a parallel task (%p) with %d cpus and %d links.",
-        action, workstation_nb, nb_link);
-  action->generic_action.using = 1;
-  action->generic_action.cost = amount;
-  action->generic_action.remains = amount;
-  action->generic_action.max_duration = NO_MAX_DURATION;
-  action->generic_action.start = -1.0;
-  action->generic_action.finish = -1.0;
-  action->generic_action.resource_type =
-      (surf_resource_t) surf_workstation_resource;
-  action->suspended = 0;       /* Should be useless because of the
-                                  calloc but it seems to help valgrind... */
-  action->generic_action.state_set =
-      surf_workstation_resource->common_public->states.running_action_set;
-
-  xbt_swag_insert(action, action->generic_action.state_set);
+  action =
+      surf_action_new(sizeof(s_surf_action_workstation_L07_t), amount,
+                      surf_workstation_model, 0);
+  XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
+         action, workstation_nb, nb_link);
+  action->suspended = 0;        /* Should be useless because of the
+                                   calloc but it seems to help valgrind... */
+  action->workstation_nb = workstation_nb;
+  action->workstation_list = (cpu_L07_t *) workstation_list;
+  action->computation_amount = computation_amount;
+  action->communication_amount = communication_amount;
+  action->latency = latency;
   action->rate = rate;
 
-  if (action->rate > 0)
-    action->variable =
-       lmm_variable_new(ptask_maxmin_system, action, 1.0, -1.0,
-                        workstation_nb + nb_link);
-  else
-    action->variable =
-       lmm_variable_new(ptask_maxmin_system, action, 1.0, action->rate,
-                        workstation_nb + nb_link);
+  action->variable =
+      lmm_variable_new(ptask_maxmin_system, action, 1.0,
+                       (action->rate > 0) ? action->rate : -1.0,
+                       workstation_nb + nb_link);
+
+  if (action->latency > 0)
+    lmm_update_variable_weight(ptask_maxmin_system, action->variable, 0.0);
 
   for (i = 0; i < workstation_nb; i++)
     lmm_expand(ptask_maxmin_system,
-              ((cpu_L07_t) workstation_list[i])->constraint,
-              action->variable, computation_amount[i]);
-  
+               ((cpu_L07_t) workstation_list[i])->constraint,
+               action->variable, computation_amount[i]);
+
   for (i = 0; i < workstation_nb; i++) {
     for (j = 0; j < workstation_nb; j++) {
-      cpu_L07_t card_src = workstation_list[i];
-      cpu_L07_t card_dst = workstation_list[j];
-      int route_size = ROUTE(card_src->id, card_dst->id).size;
-      network_link_L07_t *route = ROUTE(card_src->id, card_dst->id).links;
-      
-      if (communication_amount[i * workstation_nb + j] == 0.0) 
-       continue;
-      for (k = 0; k < route_size; k++) {
-         lmm_expand_add(ptask_maxmin_system, route[k]->constraint,
-                        action->variable,
-                        communication_amount[i * workstation_nb + j]);
+      link_L07_t link;
+      xbt_dynar_t route =
+          global_routing->get_route(surf_resource_name
+                                    (workstation_list[i]),
+                                    surf_resource_name(workstation_list
+                                                       [j]));
+
+      if (communication_amount[i * workstation_nb + j] == 0.0)
+        continue;
+      xbt_dynar_foreach(route, cpt, link) {
+        lmm_expand_add(ptask_maxmin_system, link->constraint,
+                       action->variable,
+                       communication_amount[i * workstation_nb + j]);
       }
     }
   }
@@ -472,15 +540,23 @@ static surf_action_t execute_parallel_task(int workstation_nb,
   return (surf_action_t) action;
 }
 
-static surf_action_t execute(void *cpu, double size)
+static surf_action_t ptask_execute(void *cpu, double size)
 {
-  double val = 0.0;
+  void **workstation_list = xbt_new0(void *, 1);
+  double *computation_amount = xbt_new0(double, 1);
+  double *communication_amount = xbt_new0(double, 1);
+
+  workstation_list[0] = cpu;
+  communication_amount[0] = 0.0;
+  computation_amount[0] = size;
 
-  return execute_parallel_task(1, &cpu, &size, &val, 1, -1);
+  return ptask_execute_parallel_task(1, workstation_list,
+                                     computation_amount,
+                                     communication_amount, 1, -1);
 }
 
-static surf_action_t communicate(void *src, void *dst, double size,
-                                double rate)
+static surf_action_t ptask_communicate(void *src, void *dst, double size,
+                                       double rate)
 {
   void **workstation_list = xbt_new0(void *, 2);
   double *computation_amount = xbt_new0(double, 2);
@@ -491,434 +567,330 @@ static surf_action_t communicate(void *src, void *dst, double size,
   workstation_list[1] = dst;
   communication_amount[1] = size;
 
-  res = execute_parallel_task(2, workstation_list,
-                             computation_amount, communication_amount,
-                             1, rate);
-
-  free(computation_amount);
-  free(communication_amount);
-  free(workstation_list);
+  res = ptask_execute_parallel_task(2, workstation_list,
+                                    computation_amount,
+                                    communication_amount, 1, rate);
 
   return res;
 }
 
-static surf_action_t action_sleep(void *cpu, double duration)
+static surf_action_t ptask_action_sleep(void *cpu, double duration)
 {
   surf_action_workstation_L07_t action = NULL;
 
-  XBT_IN2("(%s,%g)", ((cpu_L07_t) cpu)->name, duration);
+  XBT_IN("(%s,%g)", surf_resource_name(cpu), duration);
 
-  action = (surf_action_workstation_L07_t) execute(cpu, 1.0);
+  action = (surf_action_workstation_L07_t) ptask_execute(cpu, 1.0);
   action->generic_action.max_duration = duration;
   action->suspended = 2;
   lmm_update_variable_weight(ptask_maxmin_system, action->variable, 0.0);
 
-  XBT_OUT;
+  XBT_OUT();
   return (surf_action_t) action;
 }
 
-/* returns an array of network_link_L07_t */
-static const void **get_route(void *src, void *dst)
+static xbt_dynar_t ptask_get_route(void *src, void *dst)
 {
-  cpu_L07_t card_src = src;
-  cpu_L07_t card_dst = dst;
-  route_L07_t route = &(ROUTE(card_src->id, card_dst->id));
-
-  return (const void **) route->links;
+  return global_routing->get_route(surf_resource_name(src),
+                                   surf_resource_name(dst));
 }
 
-static int get_route_size(void *src, void *dst)
+static double ptask_get_link_bandwidth(const void *link)
 {
-  cpu_L07_t card_src = src;
-  cpu_L07_t card_dst = dst;
-  route_L07_t route = &(ROUTE(card_src->id, card_dst->id));
-  return route->size;
+  return ((link_L07_t) link)->bw_current;
 }
 
-static const char *get_link_name(const void *link)
+static double ptask_get_link_latency(const void *link)
 {
-  return ((network_link_L07_t) link)->name;
+  return ((link_L07_t) link)->lat_current;
 }
 
-static double get_link_bandwidth(const void *link)
+static int ptask_link_shared(const void *link)
 {
-  return ((network_link_L07_t) link)->bw_current;
-}
-
-static double get_link_latency(const void *link)
-{
-  static int warned = 0;
-
-  if(!warned) {
-    WARN0("This model does not take latency into account.");
-    warned = 1;
-  }
-  return 0.0;
+  return lmm_constraint_is_shared(((link_L07_t) link)->constraint);
 }
 
 /**************************************/
 /*** Resource Creation & Destruction **/
 /**************************************/
 
-static void cpu_free(void *cpu)
-{
-  free(((cpu_L07_t) cpu)->name);
-  free(cpu);
-}
-
-static cpu_L07_t cpu_new(const 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)
+static void* ptask_cpu_create_resource(char *name, double power_scale,
+                               double power_initial,
+                               tmgr_trace_t power_trace,
+                               e_surf_resource_state_t state_initial,
+                               tmgr_trace_t state_trace,
+                               xbt_dict_t cpu_properties)
 {
   cpu_L07_t cpu = xbt_new0(s_cpu_L07_t, 1);
+  xbt_assert(!surf_workstation_resource_by_name(name),
+              "Host '%s' declared several times in the platform file.",
+              name);
 
-  cpu->resource = (surf_resource_t) surf_workstation_resource;
+  cpu->generic_resource.model = surf_workstation_model;
   cpu->type = SURF_WORKSTATION_RESOURCE_CPU;
-  cpu->name = xbt_strdup(name);
-  cpu->id = nb_workstation++;
+  cpu->generic_resource.name = xbt_strdup(name);
+  cpu->generic_resource.properties = cpu_properties;
+  cpu->id = ptask_host_count++;
 
   cpu->power_scale = power_scale;
-  xbt_assert0(cpu->power_scale > 0, "Power has to be >0");
+  xbt_assert(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);
+        tmgr_history_add_trace(history, power_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);
+        tmgr_history_add_trace(history, state_trace, 0.0, 0, cpu);
 
   cpu->constraint =
       lmm_constraint_new(ptask_maxmin_system, cpu,
-                        cpu->power_current * cpu->power_scale);
+                         cpu->power_current * cpu->power_scale);
 
-  xbt_dict_set(workstation_set, name, cpu, cpu_free);
+  xbt_lib_set(host_lib, name, SURF_WKS_LEVEL, cpu);
 
   return cpu;
 }
 
-static void parse_cpu(void)
-{
-  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;
-
-  surf_parse_get_double(&power_scale, A_surfxml_cpu_power);
-  surf_parse_get_double(&power_initial, A_surfxml_cpu_availability);
-  surf_parse_get_trace(&power_trace, A_surfxml_cpu_availability_file);
-
-  xbt_assert0((A_surfxml_cpu_state == A_surfxml_cpu_state_ON) ||
-             (A_surfxml_cpu_state == A_surfxml_cpu_state_OFF),
-             "Invalid state");
-  if (A_surfxml_cpu_state == A_surfxml_cpu_state_ON)
-    state_initial = SURF_CPU_ON;
-  if (A_surfxml_cpu_state == A_surfxml_cpu_state_OFF)
-    state_initial = SURF_CPU_OFF;
-  surf_parse_get_trace(&state_trace, A_surfxml_cpu_state_file);
-
-  cpu_new(A_surfxml_cpu_name, power_scale, power_initial, power_trace,
-         state_initial, state_trace);
-}
-
-static void create_routing_table(void)
-{
-  routing_table = xbt_new0(s_route_L07_t, nb_workstation * nb_workstation);
-}
-
-static void network_link_free(void *nw_link)
-{
-  free(((network_link_L07_t) nw_link)->name);
-  free(nw_link);
-}
-
-static network_link_L07_t network_link_new(char *name,
-                                          double bw_initial,
-                                          tmgr_trace_t bw_trace,
-                                          e_surf_network_link_state_t
-                                          state_initial,
-                                          tmgr_trace_t state_trace,
-                                          e_surf_network_link_sharing_policy_t
-                                          policy)
-{
-  network_link_L07_t nw_link = xbt_new0(s_network_link_L07_t, 1);
-
-
-  nw_link->resource = (surf_resource_t) surf_workstation_resource;
+static void ptask_parse_cpu_init(void)
+{
+  ptask_cpu_create_resource(
+                 struct_host->V_host_id,
+                 struct_host->V_host_power_peak,
+                 struct_host->V_host_power_scale,
+                 struct_host->V_host_power_trace,
+                 struct_host->V_host_state_initial,
+                 struct_host->V_host_state_trace,
+          current_property_set);
+  current_property_set=NULL;
+}
+
+static void* ptask_link_create_resource(char *name,
+                                 double bw_initial,
+                                 tmgr_trace_t bw_trace,
+                                 double lat_initial,
+                                 tmgr_trace_t lat_trace,
+                                 e_surf_resource_state_t
+                                 state_initial,
+                                 tmgr_trace_t state_trace,
+                                 e_surf_link_sharing_policy_t
+                                 policy, xbt_dict_t properties)
+{
+  link_L07_t nw_link = xbt_new0(s_link_L07_t, 1);
+  xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
+              "Link '%s' declared several times in the platform file.",
+              name);
+
+  nw_link->generic_resource.model = surf_workstation_model;
+  nw_link->generic_resource.properties = properties;
+  nw_link->generic_resource.name = name;
   nw_link->type = SURF_WORKSTATION_RESOURCE_LINK;
-  nw_link->name = name;
   nw_link->bw_current = bw_initial;
   if (bw_trace)
     nw_link->bw_event =
-       tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
+        tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
   nw_link->state_current = state_initial;
+  nw_link->lat_current = lat_initial;
+  if (lat_trace)
+    nw_link->lat_event =
+        tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
   if (state_trace)
     nw_link->state_event =
-       tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
+        tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
 
   nw_link->constraint =
       lmm_constraint_new(ptask_maxmin_system, nw_link,
-                        nw_link->bw_current);
+                         nw_link->bw_current);
 
-  if (policy == SURF_NETWORK_LINK_FATPIPE)
+  if (policy == SURF_LINK_FATPIPE)
     lmm_constraint_shared(nw_link->constraint);
 
-  xbt_dict_set(network_link_set, name, nw_link, network_link_free);
-
+  xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
   return nw_link;
 }
 
-static void parse_network_link(void)
+static void ptask_parse_link_init(void)
 {
-  char *name;
-  double bw_initial;
-  tmgr_trace_t bw_trace;
-  e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
-  e_surf_network_link_sharing_policy_t policy_initial =
-      SURF_NETWORK_LINK_SHARED;
-  tmgr_trace_t state_trace;
-
-  name = xbt_strdup(A_surfxml_network_link_name);
-  surf_parse_get_double(&bw_initial, A_surfxml_network_link_bandwidth);
-  surf_parse_get_trace(&bw_trace, A_surfxml_network_link_bandwidth_file);
-
-  xbt_assert0((A_surfxml_network_link_state ==
-              A_surfxml_network_link_state_ON)
-             || (A_surfxml_network_link_state ==
-                 A_surfxml_network_link_state_OFF), "Invalid state");
-  if (A_surfxml_network_link_state == A_surfxml_network_link_state_ON)
-    state_initial = SURF_NETWORK_LINK_ON;
-  else if (A_surfxml_network_link_state ==
-          A_surfxml_network_link_state_OFF)
-    state_initial = SURF_NETWORK_LINK_OFF;
-
-  if (A_surfxml_network_link_sharing_policy ==
-      A_surfxml_network_link_sharing_policy_SHARED)
-    policy_initial = SURF_NETWORK_LINK_SHARED;
-  else if (A_surfxml_network_link_sharing_policy ==
-          A_surfxml_network_link_sharing_policy_FATPIPE)
-    policy_initial = SURF_NETWORK_LINK_FATPIPE;
-
-  surf_parse_get_trace(&state_trace, A_surfxml_network_link_state_file);
-
-  network_link_new(name, bw_initial, bw_trace, state_initial, state_trace,
-                  policy_initial);
-}
-
-static void route_new(int src_id, int dst_id,
-                     network_link_L07_t * link_list, int nb_link)
-{
-  route_L07_t route = &(ROUTE(src_id, dst_id));
+  if(struct_lnk->V_policy_initial_link == SURF_LINK_FULLDUPLEX)
+  {
+         ptask_link_create_resource(bprintf("%s_UP",struct_lnk->V_link_id), struct_lnk->V_link_bandwidth, struct_lnk->V_link_bandwidth_file,
+                      struct_lnk->V_link_latency, struct_lnk->V_link_latency_file, struct_lnk->V_link_state, struct_lnk->V_link_state_file,
+                      struct_lnk->V_policy_initial_link, current_property_set);
+    ptask_link_create_resource(bprintf("%s_DOWN",struct_lnk->V_link_id), struct_lnk->V_link_bandwidth, struct_lnk->V_link_bandwidth_file,
+            struct_lnk->V_link_latency, struct_lnk->V_link_latency_file, struct_lnk->V_link_state, struct_lnk->V_link_state_file,
+                      struct_lnk->V_policy_initial_link, current_property_set);
+  }
+  else
+  {
+         ptask_link_create_resource(xbt_strdup(struct_lnk->V_link_id), struct_lnk->V_link_bandwidth, struct_lnk->V_link_bandwidth_file,
+               struct_lnk->V_link_latency, struct_lnk->V_link_latency_file, struct_lnk->V_link_state, struct_lnk->V_link_state_file,
+                      struct_lnk->V_policy_initial_link, current_property_set);
+  }
 
-  route->size = nb_link;
-  route->links = link_list =
-      xbt_realloc(link_list, sizeof(network_link_L07_t) * nb_link);
+  current_property_set = NULL;
 }
 
-static int nb_link;
-static int link_list_capacity;
-static network_link_L07_t *link_list = NULL;
-static int src_id = -1;
-static int dst_id = -1;
-
-static void parse_route_set_endpoints(void)
+static void ptask_add_traces(void)
 {
-  cpu_L07_t cpu_tmp = NULL;
+  xbt_dict_cursor_t cursor = NULL;
+  char *trace_name, *elm;
 
-  cpu_tmp = (cpu_L07_t) name_service(A_surfxml_route_src);
-  xbt_assert1(cpu_tmp, "Invalid cpu %s", A_surfxml_route_src);
-  if (cpu_tmp != NULL)
-    src_id = cpu_tmp->id;
+  if (!trace_connect_list_host_avail)
+    return;
 
-  cpu_tmp = (cpu_L07_t) name_service(A_surfxml_route_dst);
-  xbt_assert1(cpu_tmp, "Invalid cpu %s", A_surfxml_route_dst);
-  if (cpu_tmp != NULL)
-    dst_id = cpu_tmp->id;
+  /* Connect traces relative to cpu */
+  xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
+    tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+    cpu_L07_t host = surf_workstation_resource_by_name(elm);
 
-  nb_link = 0;
-  link_list_capacity = 1;
-  link_list = xbt_new(network_link_L07_t, link_list_capacity);
-}
+    xbt_assert(host, "Host %s undefined", elm);
+    xbt_assert(trace, "Trace %s undefined", trace_name);
 
-static void parse_route_elem(void)
-{
-  xbt_ex_t e;
-  if (nb_link == link_list_capacity) {
-    link_list_capacity *= 2;
-    link_list =
-       xbt_realloc(link_list,
-                   (link_list_capacity) * sizeof(network_link_L07_t));
+    host->state_event =
+        tmgr_history_add_trace(history, trace, 0.0, 0, host);
   }
-  TRY {
-    link_list[nb_link++] =
-       xbt_dict_get(network_link_set, A_surfxml_route_element_name);
+
+  xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
+    tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+    cpu_L07_t host = surf_workstation_resource_by_name(elm);
+
+    xbt_assert(host, "Host %s undefined", elm);
+    xbt_assert(trace, "Trace %s undefined", trace_name);
+
+    host->power_event =
+        tmgr_history_add_trace(history, trace, 0.0, 0, host);
   }
-  CATCH(e) {
-    RETHROW1("Link %s not found (dict raised this exception: %s)",
-            A_surfxml_route_element_name);
+
+  /* Connect traces relative to network */
+  xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
+    tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+    link_L07_t link =
+               xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
+
+    xbt_assert(link, "Link %s undefined", elm);
+    xbt_assert(trace, "Trace %s undefined", trace_name);
+
+    link->state_event =
+        tmgr_history_add_trace(history, trace, 0.0, 0, link);
   }
-}
 
-static void parse_route_set_route(void)
-{
-  if (src_id != -1 && dst_id != -1)
-    route_new(src_id, dst_id, link_list, nb_link);
+  xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
+    tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+    link_L07_t link =
+               xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
+
+    xbt_assert(link, "Link %s undefined", elm);
+    xbt_assert(trace, "Trace %s undefined", trace_name);
+
+    link->bw_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
+  }
+
+  xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
+    tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+    link_L07_t link =
+               xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
+
+    xbt_assert(link, "Link %s undefined", elm);
+    xbt_assert(trace, "Trace %s undefined", trace_name);
+
+    link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
+  }
 }
 
-static void parse_file(const char *file)
+static void ptask_define_callbacks(const char *file)
 {
-  int i;
-
-  /* Figuring out the cpus */
-  surf_parse_reset_parser();
-  ETag_surfxml_cpu_fun = parse_cpu;
-  surf_parse_open(file);
-  xbt_assert1((!surf_parse()), "Parse error in %s", file);
-  surf_parse_close();
-
-  create_routing_table();
-
-  /* Figuring out the network links */
-  surf_parse_reset_parser();
-  ETag_surfxml_network_link_fun = parse_network_link;
-  surf_parse_open(file);
-  xbt_assert1((!surf_parse()), "Parse error in %s", file);
-  surf_parse_close();
-
-  /* Building the routes */
-  surf_parse_reset_parser();
-  STag_surfxml_route_fun = parse_route_set_endpoints;
-  ETag_surfxml_route_element_fun = parse_route_elem;
-  ETag_surfxml_route_fun = parse_route_set_route;
-  surf_parse_open(file);
-  xbt_assert1((!surf_parse()), "Parse error in %s", file);
-  surf_parse_close();
-
-  /* Adding loopback if needed */
-  for (i = 0; i < nb_workstation; i++)
-    if (!ROUTE(i, i).size) {
-      if (!loopback)
-       loopback = network_link_new(xbt_strdup("__MSG_loopback__"),
-                                   498000000, NULL,
-                                   SURF_NETWORK_LINK_ON, NULL,
-                                   SURF_NETWORK_LINK_FATPIPE);
-
-      ROUTE(i, i).size = 1;
-      ROUTE(i, i).links = xbt_new0(network_link_L07_t, 1);
-      ROUTE(i, i).links[0] = loopback;
-    }
+  /* Adding callback functions */
+  surfxml_add_callback(ETag_surfxml_host_cb_list, &ptask_parse_cpu_init);
+  surfxml_add_callback(ETag_surfxml_link_cb_list, &ptask_parse_link_init);
+  surfxml_add_callback(ETag_surfxml_platform_cb_list, &ptask_add_traces);
 }
 
 /**************************************/
 /********* Module  creation ***********/
 /**************************************/
 
-static void resource_init_internal(void)
-{
-  s_surf_action_t action;
-
-  surf_workstation_resource = xbt_new0(s_surf_workstation_resource_t, 1);
-
-  surf_workstation_resource->common_private =
-      xbt_new0(s_surf_resource_private_t, 1);
-  surf_workstation_resource->common_public =
-      xbt_new0(s_surf_resource_public_t, 1);
-  surf_workstation_resource->extension_public =
-      xbt_new0(s_surf_workstation_resource_extension_public_t, 1);
-
-  surf_workstation_resource->common_public->states.ready_action_set =
-      xbt_swag_new(xbt_swag_offset(action, state_hookup));
-  surf_workstation_resource->common_public->states.running_action_set =
-      xbt_swag_new(xbt_swag_offset(action, state_hookup));
-  surf_workstation_resource->common_public->states.failed_action_set =
-      xbt_swag_new(xbt_swag_offset(action, state_hookup));
-  surf_workstation_resource->common_public->states.done_action_set =
-      xbt_swag_new(xbt_swag_offset(action, state_hookup));
-
-  surf_workstation_resource->common_public->name_service = name_service;
-  surf_workstation_resource->common_public->get_resource_name =
-      get_resource_name;
-  surf_workstation_resource->common_public->action_get_state =
-      surf_action_get_state;
-  surf_workstation_resource->common_public->action_get_start_time =
-      surf_action_get_start_time;
-  surf_workstation_resource->common_public->action_get_finish_time =
-      surf_action_get_finish_time;
-  surf_workstation_resource->common_public->action_use = action_use;
-  surf_workstation_resource->common_public->action_free = action_free;
-  surf_workstation_resource->common_public->action_cancel = action_cancel;
-  surf_workstation_resource->common_public->action_recycle =
-      action_recycle;
-  surf_workstation_resource->common_public->action_change_state =
-      surf_action_change_state;
-  surf_workstation_resource->common_public->action_set_data =
-      surf_action_set_data;
-  surf_workstation_resource->common_public->suspend = action_suspend;
-  surf_workstation_resource->common_public->resume = action_resume;
-  surf_workstation_resource->common_public->is_suspended =
-      action_is_suspended;
-  surf_workstation_resource->common_public->set_max_duration =
-      action_set_max_duration;
-  surf_workstation_resource->common_public->set_priority =
-      action_set_priority;
-  surf_workstation_resource->common_public->name = "Workstation ptask_L07";
-
-  surf_workstation_resource->common_private->resource_used = resource_used;
-  surf_workstation_resource->common_private->share_resources =
-      share_resources;
-  surf_workstation_resource->common_private->update_actions_state =
-      update_actions_state;
-  surf_workstation_resource->common_private->update_resource_state =
-      update_resource_state;
-  surf_workstation_resource->common_private->finalize = finalize;
-
-  surf_workstation_resource->extension_public->execute = execute;
-  surf_workstation_resource->extension_public->sleep = action_sleep;
-  surf_workstation_resource->extension_public->get_state =
-      resource_get_state;
-  surf_workstation_resource->extension_public->get_speed = get_speed;
-  surf_workstation_resource->extension_public->get_available_speed =
-      get_available_speed;
-  surf_workstation_resource->extension_public->communicate = communicate;
-  surf_workstation_resource->extension_public->execute_parallel_task =
-      execute_parallel_task;
-  surf_workstation_resource->extension_public->get_route = get_route;
-  surf_workstation_resource->extension_public->get_route_size =
-      get_route_size;
-  surf_workstation_resource->extension_public->get_link_name =
-      get_link_name;
-  surf_workstation_resource->extension_public->get_link_bandwidth =
-      get_link_bandwidth;
-  surf_workstation_resource->extension_public->get_link_latency =
-      get_link_latency;
-
-  workstation_set = xbt_dict_new();
-  network_link_set = xbt_dict_new();
+static void ptask_model_init_internal(void)
+{
+  surf_workstation_model = surf_model_init();
+
+  surf_workstation_model->action_unref = ptask_action_unref;
+  surf_workstation_model->action_cancel = ptask_action_cancel;
+  surf_workstation_model->action_state_set = surf_action_state_set;
+  surf_workstation_model->suspend = ptask_action_suspend;
+  surf_workstation_model->resume = ptask_action_resume;
+  surf_workstation_model->is_suspended = ptask_action_is_suspended;
+  surf_workstation_model->set_max_duration = ptask_action_set_max_duration;
+  surf_workstation_model->set_priority = ptask_action_set_priority;
+  surf_workstation_model->get_remains = ptask_action_get_remains;
+  surf_workstation_model->name = "Workstation ptask_L07";
+
+  surf_workstation_model->model_private->resource_used =
+      ptask_resource_used;
+  surf_workstation_model->model_private->share_resources =
+      ptask_share_resources;
+  surf_workstation_model->model_private->update_actions_state =
+      ptask_update_actions_state;
+  surf_workstation_model->model_private->update_resource_state =
+      ptask_update_resource_state;
+  surf_workstation_model->model_private->finalize = ptask_finalize;
+
+
+  surf_workstation_model->extension.workstation.execute = ptask_execute;
+  surf_workstation_model->extension.workstation.sleep = ptask_action_sleep;
+  surf_workstation_model->extension.workstation.get_state =
+      ptask_resource_get_state;
+  surf_workstation_model->extension.workstation.get_speed =
+      ptask_get_speed;
+  surf_workstation_model->extension.workstation.get_available_speed =
+      ptask_get_available_speed;
+  surf_workstation_model->extension.workstation.communicate =
+      ptask_communicate;
+  surf_workstation_model->extension.workstation.get_route =
+      ptask_get_route;
+  surf_workstation_model->extension.workstation.execute_parallel_task =
+      ptask_execute_parallel_task;
+  surf_workstation_model->extension.workstation.get_link_bandwidth =
+      ptask_get_link_bandwidth;
+  surf_workstation_model->extension.workstation.get_link_latency =
+      ptask_get_link_latency;
+  surf_workstation_model->extension.workstation.link_shared =
+      ptask_link_shared;
+  surf_workstation_model->extension.workstation.get_properties =
+      surf_resource_properties;
+  surf_workstation_model->extension.workstation.link_create_resource =
+      ptask_link_create_resource;
+  surf_workstation_model->extension.workstation.cpu_create_resource =
+      ptask_cpu_create_resource;
+  surf_workstation_model->extension.workstation.add_traces =
+      ptask_add_traces;
 
   if (!ptask_maxmin_system)
     ptask_maxmin_system = lmm_system_new();
+
+  routing_model_create(sizeof(link_L07_t),
+      ptask_link_create_resource(xbt_strdup("__loopback__"),
+                                      498000000, NULL, 0.000015, NULL,
+                                      SURF_RESOURCE_ON, NULL,
+                                      SURF_LINK_FATPIPE, NULL),
+                       ptask_get_link_latency);
+
 }
 
 /**************************************/
 /*************** Generic **************/
 /**************************************/
-void surf_workstation_resource_init_ptask_L07(const char *filename)
-{
-  xbt_assert0(!surf_cpu_resource, "CPU resource type already defined");
-  xbt_assert0(!surf_network_resource,
-             "network resource type already defined");
-  resource_init_internal();
-  parse_file(filename);
-  WARN0("This model does not take latency into account.");
-
-  update_resource_description(surf_workstation_resource_description,
-                             surf_workstation_resource_description_size,
-                             "ptask_L07",
-                             (surf_resource_t) surf_workstation_resource);
-  xbt_dynar_push(resource_list, &surf_workstation_resource);
+void surf_workstation_model_init_ptask_L07(const char *filename)
+{
+  XBT_INFO("surf_workstation_model_init_ptask_L07");
+  xbt_assert(!surf_cpu_model, "CPU model type already defined");
+  xbt_assert(!surf_network_model, "network model type already defined");
+  surf_network_model = surf_model_init();
+  ptask_define_callbacks(filename);
+  ptask_model_init_internal();
+
+  update_model_description(surf_workstation_model_description,
+                           "ptask_L07", surf_workstation_model);
+  xbt_dynar_push(model_list, &surf_workstation_model);
 }