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rename the fields of CpuTi
[simgrid.git] / src / surf / cpu_ti.cpp
index 6f77ebf..724a9c5 100644 (file)
@@ -5,8 +5,9 @@
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "cpu_ti.hpp"
-#include "trace_mgr_private.h"
 #include "xbt/heap.h"
+#include "src/surf/trace_mgr.hpp"
+#include "src/surf/platform.hpp"
 
 #ifndef SURF_MODEL_CPUTI_H_
 #define SURF_MODEL_CPUTI_H_
@@ -34,32 +35,32 @@ CpuTiTrace::CpuTiTrace(tmgr_trace_t speedTrace)
   double integral = 0;
   double time = 0;
   int i = 0;
-  p_timePoints = (double*) xbt_malloc0(sizeof(double) *
-                  (xbt_dynar_length(speedTrace->s_list.event_list) + 1));
-  p_integral = (double*) xbt_malloc0(sizeof(double) *
-                  (xbt_dynar_length(speedTrace->s_list.event_list) + 1));
-  m_nbPoints = xbt_dynar_length(speedTrace->s_list.event_list) + 1;
-  xbt_dynar_foreach(speedTrace->s_list.event_list, cpt, val) {
-    p_timePoints[i] = time;
-    p_integral[i] = integral;
+  timePoints_ = (double*) xbt_malloc0(sizeof(double) *
+                  (xbt_dynar_length(speedTrace->event_list) + 1));
+  integral_ = (double*) xbt_malloc0(sizeof(double) *
+                  (xbt_dynar_length(speedTrace->event_list) + 1));
+  nbPoints_ = xbt_dynar_length(speedTrace->event_list) + 1;
+  xbt_dynar_foreach(speedTrace->event_list, cpt, val) {
+    timePoints_[i] = time;
+    integral_[i] = integral;
     integral += val.delta * val.value;
     time += val.delta;
     i++;
   }
-  p_timePoints[i] = time;
-  p_integral[i] = integral;
+  timePoints_[i] = time;
+  integral_[i] = integral;
 }
 
 CpuTiTrace::~CpuTiTrace()
 {
-  xbt_free(p_timePoints);
-  xbt_free(p_integral);
+  xbt_free(timePoints_);
+  xbt_free(integral_);
 }
 
 CpuTiTgmr::~CpuTiTgmr()
 {
-  if (p_trace)
-    delete p_trace;
+  if (trace_)
+    delete trace_;
 }
 
 /**
@@ -89,34 +90,34 @@ double CpuTiTgmr::integrate(double a, double b)
   if (a == b)
     return 0.0;
 
-  if (m_type == TRACE_FIXED) {
-    return ((b - a) * m_value);
+  if (type_ == TRACE_FIXED) {
+    return ((b - a) * value_);
   }
 
-  if (ceil(a / m_lastTime) == a / m_lastTime)
-    a_index = 1 + (int) (ceil(a / m_lastTime));
+  if (ceil(a / lastTime_) == a / lastTime_)
+    a_index = 1 + (int) (ceil(a / lastTime_));
   else
-    a_index = (int) (ceil(a / m_lastTime));
+    a_index = (int) (ceil(a / lastTime_));
 
-  b_index = (int) (floor(b / m_lastTime));
+  b_index = (int) (floor(b / lastTime_));
 
   if (a_index > b_index) {      /* Same chunk */
-    return p_trace->integrateSimple(a - (a_index -
-                                              1) * m_lastTime,
+    return trace_->integrateSimple(a - (a_index -
+                                              1) * lastTime_,
                                          b -
                                          (b_index) *
-                                         m_lastTime);
+                                         lastTime_);
   }
 
-  first_chunk = p_trace->integrateSimple(a - (a_index -
+  first_chunk = trace_->integrateSimple(a - (a_index -
                                                    1) *
-                                              m_lastTime,
-                                              m_lastTime);
-  middle_chunk = (b_index - a_index) * m_total;
-  last_chunk = p_trace->integrateSimple(0.0,
+                                              lastTime_,
+                                              lastTime_);
+  middle_chunk = (b_index - a_index) * total_;
+  last_chunk = trace_->integrateSimple(0.0,
                                              b -
                                              (b_index) *
-                                             m_lastTime);
+                                             lastTime_);
 
   XBT_DEBUG("first_chunk=%.2f  middle_chunk=%.2f  last_chunk=%.2f\n",
          first_chunk, middle_chunk, last_chunk);
@@ -125,13 +126,10 @@ double CpuTiTgmr::integrate(double a, double b)
 }
 
 /**
- * \brief Auxiliary function to calculate the integral between a and b.
- *     It simply calculates the integral at point a and b and returns the difference
- *   between them.
- * \param trace    Trace structure
- * \param a        Initial point
+ * \brief Auxiliary function to compute the integral between a and b.
+ *     It simply computes the integrals at point a and b and returns the difference between them.
+ * \param a  Initial point
  * \param b  Final point
- * \return  Integral
 */
 double CpuTiTrace::integrateSimple(double a, double b)
 {
@@ -139,39 +137,33 @@ double CpuTiTrace::integrateSimple(double a, double b)
 }
 
 /**
- * \brief Auxiliary function to calculate the integral at point a.
- * \param trace    Trace structure
+ * \brief Auxiliary function to compute the integral at point a.
  * \param a        point
- * \return  Integral
-*/
+ */
 double CpuTiTrace::integrateSimplePoint(double a)
 {
   double integral = 0;
   int ind;
   double a_aux = a;
-  ind = binarySearch(p_timePoints, a, 0, m_nbPoints - 1);
-  integral += p_integral[ind];
-  XBT_DEBUG
-      ("a %f ind %d integral %f ind + 1 %f ind %f time +1 %f time %f",
-       a, ind, integral, p_integral[ind + 1], p_integral[ind],
-       p_timePoints[ind + 1], p_timePoints[ind]);
-  double_update(&a_aux, p_timePoints[ind], sg_maxmin_precision*sg_surf_precision);
+  ind = binarySearch(timePoints_, a, 0, nbPoints_ - 1);
+  integral += integral_[ind];
+  XBT_DEBUG("a %f ind %d integral %f ind + 1 %f ind %f time +1 %f time %f",
+       a, ind, integral, integral_[ind + 1], integral_[ind],
+       timePoints_[ind + 1], timePoints_[ind]);
+  double_update(&a_aux, timePoints_[ind], sg_maxmin_precision*sg_surf_precision);
   if (a_aux > 0)
-    integral +=
-        ((p_integral[ind + 1] -
-          p_integral[ind]) / (p_timePoints[ind + 1] -
-                              p_timePoints[ind])) * (a - p_timePoints[ind]);
+    integral +=((integral_[ind + 1] -
+          integral_[ind]) / (timePoints_[ind + 1] - timePoints_[ind])) * (a - timePoints_[ind]);
   XBT_DEBUG("Integral a %f = %f", a, integral);
 
   return integral;
 }
 
 /**
-* \brief Calculate the time needed to execute "amount" on cpu.
+* \brief Computes the time needed to execute "amount" on cpu.
 *
 * Here, amount can span multiple trace periods
 *
-* \param trace   CPU trace structure
 * \param a        Initial time
 * \param amount  Amount to be executed
 * \return  End time
@@ -206,16 +198,16 @@ double CpuTiTgmr::solve(double a, double amount)
     return a;
 
 /* Is the trace fixed ? */
-  if (m_type == TRACE_FIXED) {
-    return (a + (amount / m_value));
+  if (type_ == TRACE_FIXED) {
+    return (a + (amount / value_));
   }
 
-  XBT_DEBUG("amount %f total %f", amount, m_total);
+  XBT_DEBUG("amount %f total %f", amount, total_);
 /* Reduce the problem to one where amount <= trace_total */
-  quotient = (int) (floor(amount / m_total));
-  reduced_amount = (m_total) * ((amount / m_total) -
-                                     floor(amount / m_total));
-  reduced_a = a - (m_lastTime) * (int) (floor(a / m_lastTime));
+  quotient = (int) (floor(amount / total_));
+  reduced_amount = (total_) * ((amount / total_) -
+                                     floor(amount / total_));
+  reduced_a = a - (lastTime_) * (int) (floor(a / lastTime_));
 
   XBT_DEBUG("Quotient: %d reduced_amount: %f reduced_a: %f", quotient,
          reduced_amount, reduced_a);
@@ -228,8 +220,8 @@ double CpuTiTgmr::solve(double a, double amount)
   reduced_b = solveSomewhatSimple(reduced_a, reduced_amount);
 
 /* Re-map to the original b and amount */
-  b = (m_lastTime) * (int) (floor(a / m_lastTime)) +
-      (quotient * m_lastTime) + reduced_b;
+  b = (lastTime_) * (int) (floor(a / lastTime_)) +
+      (quotient * lastTime_) + reduced_b;
   return b;
 }
 
@@ -246,15 +238,15 @@ double CpuTiTgmr::solveSomewhatSimple(double a, double amount)
   double b;
 
   XBT_DEBUG("Solve integral: [%.2f, amount=%.2f]", a, amount);
-  amount_till_end = integrate(a, m_lastTime);
+  amount_till_end = integrate(a, lastTime_);
 /*
    fprintf(stderr,"amount_till_end=%.2f\n",amount_till_end);
  */
 
   if (amount_till_end > amount) {
-    b = p_trace->solveSimple(a, amount);
+    b = trace_->solveSimple(a, amount);
   } else {
-    b = m_lastTime + p_trace->solveSimple(0.0, amount - amount_till_end);
+    b = lastTime_ + trace_->solveSimple(0.0, amount - amount_till_end);
   }
   return b;
 }
@@ -273,14 +265,14 @@ double CpuTiTrace::solveSimple(double a, double amount)
   int ind;
   double time;
   integral_a = integrateSimplePoint(a);
-  ind = binarySearch(p_integral, integral_a + amount, 0, m_nbPoints - 1);
-  time = p_timePoints[ind];
+  ind = binarySearch(integral_, integral_a + amount, 0, nbPoints_ - 1);
+  time = timePoints_[ind];
   time +=
       (integral_a + amount -
-       p_integral[ind]) / ((p_integral[ind + 1] -
-                                 p_integral[ind]) /
-                                (p_timePoints[ind + 1] -
-                                 p_timePoints[ind]));
+       integral_[ind]) / ((integral_[ind + 1] -
+                                 integral_[ind]) /
+                                (timePoints_[ind + 1] -
+                                 timePoints_[ind]));
 
   return time;
 }
@@ -299,10 +291,10 @@ double CpuTiTgmr::getPowerScale(double a)
   int point;
   s_tmgr_event_t val;
 
-  reduced_a = a - floor(a / m_lastTime) * m_lastTime;
-  point = p_trace->binarySearch(p_trace->p_timePoints, reduced_a, 0,
-                                p_trace->m_nbPoints - 1);
-  xbt_dynar_get_cpy(p_speedTrace->s_list.event_list, point, &val);
+  reduced_a = a - floor(a / lastTime_) * lastTime_;
+  point = trace_->binarySearch(trace_->timePoints_, reduced_a, 0,
+                                trace_->nbPoints_ - 1);
+  xbt_dynar_get_cpy(speedTrace_->event_list, point, &val);
   return val.value;
 }
 
@@ -319,37 +311,37 @@ CpuTiTgmr::CpuTiTgmr(tmgr_trace_t speedTrace, double value)
   double total_time = 0.0;
   s_tmgr_event_t val;
   unsigned int cpt;
-  p_trace = 0;
+  trace_ = 0;
 
 /* no availability file, fixed trace */
   if (!speedTrace) {
-    m_type = TRACE_FIXED;
-    m_value = value;
+    type_ = TRACE_FIXED;
+    value_ = value;
     XBT_DEBUG("No availability trace. Constant value = %f", value);
     return;
   }
 
   /* only one point available, fixed trace */
-  if (xbt_dynar_length(speedTrace->s_list.event_list) == 1) {
-    xbt_dynar_get_cpy(speedTrace->s_list.event_list, 0, &val);
-    m_type = TRACE_FIXED;
-    m_value = val.value;
+  if (xbt_dynar_length(speedTrace->event_list) == 1) {
+    xbt_dynar_get_cpy(speedTrace->event_list, 0, &val);
+    type_ = TRACE_FIXED;
+    value_ = val.value;
     return;
   }
 
-  m_type = TRACE_DYNAMIC;
-  p_speedTrace = speedTrace;
+  type_ = TRACE_DYNAMIC;
+  speedTrace_ = speedTrace;
 
   /* count the total time of trace file */
-  xbt_dynar_foreach(speedTrace->s_list.event_list, cpt, val) {
+  xbt_dynar_foreach(speedTrace->event_list, cpt, val) {
     total_time += val.delta;
   }
-  p_trace = new CpuTiTrace(speedTrace);
-  m_lastTime = total_time;
-  m_total = p_trace->integrateSimple(0, total_time);
+  trace_ = new CpuTiTrace(speedTrace);
+  lastTime_ = total_time;
+  total_ = trace_->integrateSimple(0, total_time);
 
   XBT_DEBUG("Total integral %f, last_time %f ",
-            m_total, m_lastTime);
+            total_, lastTime_);
 }
 
 /**
@@ -385,15 +377,6 @@ int CpuTiTrace::binarySearch(double *array, double a, int low, int high)
 }
 }
 
-/*************
- * CallBacks *
- *************/
-
-static void cpu_ti_define_callbacks()
-{
-  sg_platf_postparse_add_cb(simgrid::surf::cpu_add_traces);
-}
-
 /*********
  * Model *
  *********/
@@ -404,13 +387,10 @@ void surf_cpu_model_init_ti()
   xbt_assert(!surf_cpu_model_vm,"CPU model already initialized. This should not happen.");
 
   surf_cpu_model_pm = new simgrid::surf::CpuTiModel();
-  surf_cpu_model_vm = new simgrid::surf::CpuTiModel();
+  xbt_dynar_push(all_existing_models, &surf_cpu_model_pm);
 
-  cpu_ti_define_callbacks();
-  simgrid::surf::Model *model_pm = static_cast<simgrid::surf::Model*>(surf_cpu_model_pm);
-  simgrid::surf::Model *model_vm = static_cast<simgrid::surf::Model*>(surf_cpu_model_vm);
-  xbt_dynar_push(all_existing_models, &model_pm);
-  xbt_dynar_push(all_existing_models, &model_vm);
+  surf_cpu_model_vm = new simgrid::surf::CpuTiModel();
+  xbt_dynar_push(all_existing_models, &surf_cpu_model_vm);
 }
 
 namespace simgrid {
@@ -418,46 +398,46 @@ namespace surf {
 
 CpuTiModel::CpuTiModel() : CpuModel()
 {
-  p_runningActionSetThatDoesNotNeedBeingChecked = new ActionList();
+  runningActionSetThatDoesNotNeedBeingChecked_ = new ActionList();
 
-  p_modifiedCpu = new CpuTiList();
+  modifiedCpu_ = new CpuTiList();
 
-  p_tiActionHeap = xbt_heap_new(8, NULL);
-  xbt_heap_set_update_callback(p_tiActionHeap,
+  tiActionHeap_ = xbt_heap_new(8, NULL);
+  xbt_heap_set_update_callback(tiActionHeap_,
                                cpu_ti_action_update_index_heap);
 }
 
 CpuTiModel::~CpuTiModel()
 {
   surf_cpu_model_pm = NULL;
-  delete p_runningActionSetThatDoesNotNeedBeingChecked;
-  delete p_modifiedCpu;
-  xbt_heap_free(p_tiActionHeap);
+  delete runningActionSetThatDoesNotNeedBeingChecked_;
+  delete modifiedCpu_;
+  xbt_heap_free(tiActionHeap_);
 }
 
-Cpu *CpuTiModel::createCpu(simgrid::Host *host,
-                              xbt_dynar_t speedPeak,
-                              int pstate,
+Cpu *CpuTiModel::createCpu(simgrid::s4u::Host *host,
+                         xbt_dynar_t speedPeak,
+                         int pstate,
                            double speedScale,
                            tmgr_trace_t speedTrace,
                            int core,
-                           e_surf_resource_state_t stateInitial,
+                           int initiallyOn,
                            tmgr_trace_t stateTrace)
 {
   xbt_assert(core==1,"Multi-core not handled with this model yet");
   xbt_assert(xbt_dynar_getfirst_as(speedPeak, double) > 0.0,
       "Speed has to be >0.0. Did you forget to specify the mandatory speed attribute?");
   CpuTi *cpu = new CpuTi(this, host, speedPeak, pstate, speedScale, speedTrace,
-                          core, stateInitial, stateTrace);
+               core, initiallyOn, stateTrace);
   return cpu;
 }
 
-double CpuTiModel::shareResources(double now)
+double CpuTiModel::next_occuring_event(double now)
 {
   double min_action_duration = -1;
 
 /* iterates over modified cpus to update share resources */
-  for(CpuTiList::iterator it(p_modifiedCpu->begin()), itend(p_modifiedCpu->end())
+  for(CpuTiList::iterator it(modifiedCpu_->begin()), itend(modifiedCpu_->end())
      ; it != itend ;) {
     CpuTi *ti = &*it;
     ++it;
@@ -465,8 +445,8 @@ double CpuTiModel::shareResources(double now)
   }
 
 /* get the min next event if heap not empty */
-  if (xbt_heap_size(p_tiActionHeap) > 0)
-    min_action_duration = xbt_heap_maxkey(p_tiActionHeap) - now;
+  if (xbt_heap_size(tiActionHeap_) > 0)
+    min_action_duration = xbt_heap_maxkey(tiActionHeap_) - now;
 
   XBT_DEBUG("Share resources, min next event date: %f", min_action_duration);
 
@@ -475,188 +455,133 @@ double CpuTiModel::shareResources(double now)
 
 void CpuTiModel::updateActionsState(double now, double /*delta*/)
 {
-  while ((xbt_heap_size(p_tiActionHeap) > 0)
-         && (xbt_heap_maxkey(p_tiActionHeap) <= now)) {
-    CpuTiAction *action = (CpuTiAction*) xbt_heap_pop(p_tiActionHeap);
+  while ((xbt_heap_size(tiActionHeap_) > 0)
+         && (xbt_heap_maxkey(tiActionHeap_) <= now)) {
+    CpuTiAction *action = (CpuTiAction*) xbt_heap_pop(tiActionHeap_);
     XBT_DEBUG("Action %p: finish", action);
     action->finish();
     /* set the remains to 0 due to precision problems when updating the remaining amount */
     action->setRemains(0);
     action->setState(SURF_ACTION_DONE);
     /* update remaining amount of all actions */
-    action->p_cpu->updateRemainingAmount(surf_get_clock());
-  }
-}
-
-void CpuTiModel::addTraces()
-{
-  xbt_dict_cursor_t cursor = NULL;
-  char *trace_name, *elm;
-
-  static int called = 0;
-
-  if (called)
-    return;
-  called = 1;
-
-/* connect all traces relative to hosts */
-  xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
-    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
-    CpuTi *cpu = static_cast<CpuTi*>(sg_host_surfcpu(sg_host_by_name(elm)));
-
-    xbt_assert(cpu, "Host %s undefined", elm);
-    xbt_assert(trace, "Trace %s undefined", trace_name);
-
-    if (cpu->p_stateEvent) {
-      XBT_DEBUG("Trace already configured for this CPU(%s), ignoring it",
-             elm);
-      continue;
-    }
-    XBT_DEBUG("Add state trace: %s to CPU(%s)", trace_name, elm);
-    cpu->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, cpu);
-  }
-
-  xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
-    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
-    CpuTi *cpu = static_cast<CpuTi*>(sg_host_surfcpu(sg_host_by_name(elm)));
-
-    xbt_assert(cpu, "Host %s undefined", elm);
-    xbt_assert(trace, "Trace %s undefined", trace_name);
-
-    XBT_DEBUG("Add speed trace: %s to CPU(%s)", trace_name, elm);
-    if (cpu->p_availTrace)
-      delete cpu->p_availTrace;
-
-    cpu->p_availTrace = new CpuTiTgmr(trace, cpu->m_speedScale);
-
-    /* add a fake trace event if periodicity == 0 */
-    if (trace && xbt_dynar_length(trace->s_list.event_list) > 1) {
-      s_tmgr_event_t val;
-      xbt_dynar_get_cpy(trace->s_list.event_list,
-                        xbt_dynar_length(trace->s_list.event_list) - 1, &val);
-      if (val.delta == 0) {
-        tmgr_trace_t empty_trace;
-        empty_trace = tmgr_empty_trace_new();
-        cpu->p_speedEvent =
-            tmgr_history_add_trace(history, empty_trace,
-                                   cpu->p_availTrace->m_lastTime, 0, cpu);
-      }
-    }
+    action->cpu_->updateRemainingAmount(surf_get_clock());
   }
 }
 
 /************
  * Resource *
  ************/
-CpuTi::CpuTi(CpuTiModel *model, simgrid::Host *host, xbt_dynar_t speedPeak,
+CpuTi::CpuTi(CpuTiModel *model, simgrid::s4u::Host *host, xbt_dynar_t speedPeak,
         int pstate, double speedScale, tmgr_trace_t speedTrace, int core,
-        e_surf_resource_state_t stateInitial, tmgr_trace_t stateTrace)
-  : Cpu(model, host, NULL, pstate, core, 0, speedScale, stateInitial)
+        int initiallyOn, tmgr_trace_t stateTrace)
+  : Cpu(model, host, NULL, pstate, core, 0, speedScale, initiallyOn)
 {
-  p_speedEvent = NULL;
-  m_speedScale = speedScale;
+  xbt_assert(core==1,"Multi-core not handled by this model yet");
   m_core = core;
-  tmgr_trace_t empty_trace;
-  s_tmgr_event_t val;
-  xbt_assert(core==1,"Multi-core not handled with this model yet");
-  XBT_DEBUG("speed scale %f", speedScale);
-  p_availTrace = new CpuTiTgmr(speedTrace, speedScale);
 
-  p_actionSet = new ActionTiList();
+  p_speed.scale = speedScale;
+  availTrace_ = new CpuTiTgmr(speedTrace, speedScale);
 
-  m_lastUpdate = 0;
+  actionSet_ = new ActionTiList();
 
-  xbt_dynar_get_cpy(speedPeak, 0, &m_speedPeak);
-  XBT_DEBUG("CPU create: peak=%f", m_speedPeak);
+  xbt_dynar_get_cpy(speedPeak, 0, &p_speed.peak);
+  XBT_DEBUG("CPU create: peak=%f", p_speed.peak);
 
   if (stateTrace)
-    p_stateEvent = tmgr_history_add_trace(history, stateTrace, 0.0, 0, this);
-  if (speedTrace && xbt_dynar_length(speedTrace->s_list.event_list) > 1) {
+    p_stateEvent = future_evt_set->add_trace(stateTrace, 0.0, this);
+
+  if (speedTrace && xbt_dynar_length(speedTrace->event_list) > 1) {
+  s_tmgr_event_t val;
     // add a fake trace event if periodicity == 0
-    xbt_dynar_get_cpy(speedTrace->s_list.event_list,
-                      xbt_dynar_length(speedTrace->s_list.event_list) - 1, &val);
+    xbt_dynar_get_cpy(speedTrace->event_list,
+                      xbt_dynar_length(speedTrace->event_list) - 1, &val);
     if (val.delta == 0) {
-      empty_trace = tmgr_empty_trace_new();
-      p_speedEvent =
-        tmgr_history_add_trace(history, empty_trace,
-                               p_availTrace->m_lastTime, 0, this);
+      p_speed.event =
+          future_evt_set->add_trace(tmgr_empty_trace_new(), availTrace_->lastTime_, this);
     }
   }
-};
+}
 
 CpuTi::~CpuTi()
 {
   modified(false);
-  delete p_availTrace;
-  delete p_actionSet;
+  delete availTrace_;
+  delete actionSet_;
 }
-
-void CpuTi::updateState(tmgr_trace_event_t event_type,
-                        double value, double date)
+void CpuTi::set_speed_trace(tmgr_trace_t trace)
 {
-  CpuTiAction *action;
+  if (availTrace_)
+    delete availTrace_;
+
+  availTrace_ = new CpuTiTgmr(trace, p_speed.scale);
 
-  if (event_type == p_speedEvent) {
+  /* add a fake trace event if periodicity == 0 */
+  if (trace && xbt_dynar_length(trace->event_list) > 1) {
+    s_tmgr_event_t val;
+    xbt_dynar_get_cpy(trace->event_list, xbt_dynar_length(trace->event_list) - 1, &val);
+    if (val.delta == 0)
+      p_speed.event = future_evt_set->add_trace(tmgr_empty_trace_new(), 0.0, this);
+  }
+}
+
+void CpuTi::apply_event(tmgr_trace_iterator_t event, double value)
+{
+  if (event == p_speed.event) {
     tmgr_trace_t speedTrace;
     CpuTiTgmr *trace;
     s_tmgr_event_t val;
 
-    XBT_DEBUG("Finish trace date: %f value %f date %f", surf_get_clock(),
-           value, date);
+    XBT_DEBUG("Finish trace date: value %f", value);
     /* update remaining of actions and put in modified cpu swag */
-    updateRemainingAmount(date);
+    updateRemainingAmount(surf_get_clock());
 
     modified(true);
 
-    speedTrace = p_availTrace->p_speedTrace;
-    xbt_dynar_get_cpy(speedTrace->s_list.event_list,
-                      xbt_dynar_length(speedTrace->s_list.event_list) - 1, &val);
-    /* free old trace */
-    delete p_availTrace;
-    m_speedScale = val.value;
+    speedTrace = availTrace_->speedTrace_;
+    xbt_dynar_get_cpy(speedTrace->event_list, xbt_dynar_length(speedTrace->event_list) - 1, &val);
+    delete availTrace_;
+    p_speed.scale = val.value;
 
     trace = new CpuTiTgmr(TRACE_FIXED, val.value);
     XBT_DEBUG("value %f", val.value);
 
-    p_availTrace = trace;
+    availTrace_ = trace;
 
-    if (tmgr_trace_event_free(event_type))
-      p_speedEvent = NULL;
+    tmgr_trace_event_unref(&p_speed.event);
 
-  } else if (event_type == p_stateEvent) {
+  } else if (event == p_stateEvent) {
     if (value > 0) {
-      if(getState() == SURF_RESOURCE_OFF)
+      if(isOff())
         xbt_dynar_push_as(host_that_restart, char*, (char *)getName());
-      setState(SURF_RESOURCE_ON);
+      turnOn();
     } else {
-      setState(SURF_RESOURCE_OFF);
+      turnOff();
+      double date = surf_get_clock();
 
       /* put all action running on cpu to failed */
-      for(ActionTiList::iterator it(p_actionSet->begin()), itend(p_actionSet->end())
+      for(ActionTiList::iterator it(actionSet_->begin()), itend(actionSet_->end())
           ; it != itend ; ++it) {
-             action = &*it;
+
+        CpuTiAction *action = &*it;
         if (action->getState() == SURF_ACTION_RUNNING
          || action->getState() == SURF_ACTION_READY
          || action->getState() == SURF_ACTION_NOT_IN_THE_SYSTEM) {
           action->setFinishTime(date);
           action->setState(SURF_ACTION_FAILED);
-          if (action->m_indexHeap >= 0) {
+          if (action->indexHeap_ >= 0) {
             CpuTiAction *heap_act = (CpuTiAction*)
-                xbt_heap_remove(static_cast<CpuTiModel*>(getModel())->p_tiActionHeap, action->m_indexHeap);
+                xbt_heap_remove(static_cast<CpuTiModel*>(getModel())->tiActionHeap_, action->indexHeap_);
             if (heap_act != action)
               DIE_IMPOSSIBLE;
           }
         }
       }
     }
-    if (tmgr_trace_event_free(event_type))
-      p_stateEvent = NULL;
+    tmgr_trace_event_unref(&p_stateEvent);
+
   } else {
-    XBT_CRITICAL("Unknown event ! \n");
-    xbt_abort();
+    xbt_die("Unknown event!\n");
   }
-
-  return;
 }
 
 void CpuTi::updateActionsFinishTime(double now)
@@ -664,15 +589,13 @@ void CpuTi::updateActionsFinishTime(double now)
   CpuTiAction *action;
   double sum_priority = 0.0, total_area, min_finish = -1;
 
-/* update remaning amount of actions */
-updateRemainingAmount(now);
+  /* update remaining amount of actions */
+  updateRemainingAmount(now);
 
-  for(ActionTiList::iterator it(p_actionSet->begin()), itend(p_actionSet->end())
-      ; it != itend ; ++it) {
+  for(ActionTiList::iterator it(actionSet_->begin()), itend(actionSet_->end()) ; it != itend ; ++it) {
     action = &*it;
     /* action not running, skip it */
-    if (action->getStateSet() !=
-        surf_cpu_model_pm->getRunningActionSet())
+    if (action->getStateSet() != surf_cpu_model_pm->getRunningActionSet())
       continue;
 
     /* bogus priority, skip it */
@@ -680,15 +603,14 @@ updateRemainingAmount(now);
       continue;
 
     /* action suspended, skip it */
-    if (action->m_suspended != 0)
+    if (action->suspended_ != 0)
       continue;
 
     sum_priority += 1.0 / action->getPriority();
   }
-  m_sumPriority = sum_priority;
+  sumPriority_ = sum_priority;
 
-  for(ActionTiList::iterator it(p_actionSet->begin()), itend(p_actionSet->end())
-     ; it != itend ; ++it) {
+  for(ActionTiList::iterator it(actionSet_->begin()), itend(actionSet_->end()) ; it != itend ; ++it) {
     action = &*it;
     min_finish = -1;
     /* action not running, skip it */
@@ -697,15 +619,15 @@ updateRemainingAmount(now);
       continue;
 
     /* verify if the action is really running on cpu */
-    if (action->m_suspended == 0 && action->getPriority() > 0) {
+    if (action->suspended_ == 0 && action->getPriority() > 0) {
       /* total area needed to finish the action. Used in trace integration */
       total_area =
           (action->getRemains()) * sum_priority *
            action->getPriority();
 
-      total_area /= m_speedPeak;
+      total_area /= p_speed.peak;
 
-      action->setFinishTime(p_availTrace->solve(now, total_area));
+      action->setFinishTime(availTrace_->solve(now, total_area));
       /* verify which event will happen before (max_duration or finish time) */
       if (action->getMaxDuration() != NO_MAX_DURATION &&
           action->getStartTime() + action->getMaxDuration() < action->m_finish)
@@ -718,15 +640,15 @@ updateRemainingAmount(now);
         min_finish = action->getStartTime() + action->getMaxDuration();
     }
     /* add in action heap */
-    XBT_DEBUG("action(%p) index %d", action, action->m_indexHeap);
-    if (action->m_indexHeap >= 0) {
+    XBT_DEBUG("action(%p) index %d", action, action->indexHeap_);
+    if (action->indexHeap_ >= 0) {
       CpuTiAction *heap_act = (CpuTiAction*)
-          xbt_heap_remove(static_cast<CpuTiModel*>(getModel())->p_tiActionHeap, action->m_indexHeap);
+          xbt_heap_remove(static_cast<CpuTiModel*>(getModel())->tiActionHeap_, action->indexHeap_);
       if (heap_act != action)
         DIE_IMPOSSIBLE;
     }
     if (min_finish != NO_MAX_DURATION)
-      xbt_heap_push(static_cast<CpuTiModel*>(getModel())->p_tiActionHeap, action, min_finish);
+      xbt_heap_push(static_cast<CpuTiModel*>(getModel())->tiActionHeap_, action, min_finish);
 
     XBT_DEBUG
         ("Update finish time: Cpu(%s) Action: %p, Start Time: %f Finish Time: %f Max duration %f",
@@ -734,46 +656,37 @@ updateRemainingAmount(now);
          action->m_finish,
          action->getMaxDuration());
   }
-/* remove from modified cpu */
+  /* remove from modified cpu */
   modified(false);
 }
 
 bool CpuTi::isUsed()
 {
-  return !p_actionSet->empty();
+  return !actionSet_->empty();
 }
 
 double CpuTi::getAvailableSpeed()
 {
-  m_speedScale = p_availTrace->getPowerScale(surf_get_clock());
+  p_speed.scale = availTrace_->getPowerScale(surf_get_clock());
   return Cpu::getAvailableSpeed();
 }
 
-/**
-* \brief Update the remaining amount of actions
-*
-* \param  now    Current time
-*/
+/** @brief Update the remaining amount of actions */
 void CpuTi::updateRemainingAmount(double now)
 {
-  double area_total;
-  CpuTiAction *action;
 
   /* already updated */
-  if (m_lastUpdate >= now)
+  if (lastUpdate_ >= now)
     return;
 
-/* calcule the surface */
-  area_total = p_availTrace->integrate(m_lastUpdate, now) * m_speedPeak;
-  XBT_DEBUG("Flops total: %f, Last update %f", area_total,
-         m_lastUpdate);
+  /* compute the integration area */
+  double area_total = availTrace_->integrate(lastUpdate_, now) * p_speed.peak;
+  XBT_DEBUG("Flops total: %f, Last update %f", area_total, lastUpdate_);
 
-  for(ActionTiList::iterator it(p_actionSet->begin()), itend(p_actionSet->end())
-     ; it != itend ; ++it) {
-    action = &*it;
+  for(ActionTiList::iterator it(actionSet_->begin()), itend(actionSet_->end()) ; it != itend ; ++it) {
+    CpuTiAction *action = &*it;
     /* action not running, skip it */
-    if (action->getStateSet() !=
-        getModel()->getRunningActionSet())
+    if (action->getStateSet() != getModel()->getRunningActionSet())
       continue;
 
     /* bogus priority, skip it */
@@ -781,7 +694,7 @@ void CpuTi::updateRemainingAmount(double now)
       continue;
 
     /* action suspended, skip it */
-    if (action->m_suspended != 0)
+    if (action->suspended_ != 0)
       continue;
 
     /* action don't need update */
@@ -789,24 +702,22 @@ void CpuTi::updateRemainingAmount(double now)
       continue;
 
     /* skip action that are finishing now */
-    if (action->m_finish >= 0
-        && action->m_finish <= now)
+    if (action->m_finish >= 0 && action->m_finish <= now)
       continue;
 
     /* update remaining */
-    action->updateRemains(area_total / (m_sumPriority * action->getPriority()));
-    XBT_DEBUG("Update remaining action(%p) remaining %f", action,
-           action->m_remains);
+    action->updateRemains(area_total / (sumPriority_ * action->getPriority()));
+    XBT_DEBUG("Update remaining action(%p) remaining %f", action, action->m_remains);
   }
-  m_lastUpdate = now;
+  lastUpdate_ = now;
 }
 
-CpuAction *CpuTi::execute(double size)
+CpuAction *CpuTi::execution_start(double size)
 {
   XBT_IN("(%s,%g)", getName(), size);
-  CpuTiAction *action = new CpuTiAction(static_cast<CpuTiModel*>(getModel()), size, getState() != SURF_RESOURCE_ON, this);
+  CpuTiAction *action = new CpuTiAction(static_cast<CpuTiModel*>(getModel()), size, isOff(), this);
 
-  p_actionSet->push_back(*action);
+  actionSet_->push_back(*action);
 
   XBT_OUT();
   return action;
@@ -819,26 +730,26 @@ CpuAction *CpuTi::sleep(double duration)
     duration = MAX(duration, sg_surf_precision);
 
   XBT_IN("(%s,%g)", getName(), duration);
-  CpuTiAction *action = new CpuTiAction(static_cast<CpuTiModel*>(getModel()), 1.0, getState() != SURF_RESOURCE_ON, this);
+  CpuTiAction *action = new CpuTiAction(static_cast<CpuTiModel*>(getModel()), 1.0, isOff(), this);
 
   action->m_maxDuration = duration;
-  action->m_suspended = 2;
+  action->suspended_ = 2;
   if (duration == NO_MAX_DURATION) {
    /* Move to the *end* of the corresponding action set. This convention
       is used to speed up update_resource_state  */
-       action->getStateSet()->erase(action->getStateSet()->iterator_to(*action));
-    action->p_stateSet = static_cast<CpuTiModel*>(getModel())->p_runningActionSetThatDoesNotNeedBeingChecked;
+  action->getStateSet()->erase(action->getStateSet()->iterator_to(*action));
+    action->p_stateSet = static_cast<CpuTiModel*>(getModel())->runningActionSetThatDoesNotNeedBeingChecked_;
     action->getStateSet()->push_back(*action);
   }
 
-  p_actionSet->push_back(*action);
+  actionSet_->push_back(*action);
 
   XBT_OUT();
   return action;
 }
 
 void CpuTi::modified(bool modified){
-  CpuTiList *modifiedCpu = static_cast<CpuTiModel*>(getModel())->p_modifiedCpu;
+  CpuTiList *modifiedCpu = static_cast<CpuTiModel*>(getModel())->modifiedCpu_;
   if (modified) {
     if (!cpu_ti_hook.is_linked()) {
       modifiedCpu->push_back(*this);
@@ -854,38 +765,37 @@ void CpuTi::modified(bool modified){
  * Action *
  **********/
 
-CpuTiAction::CpuTiAction(CpuTiModel *model_, double cost, bool failed,
-                                CpuTi *cpu)
+CpuTiAction::CpuTiAction(CpuTiModel *model_, double cost, bool failed, CpuTi *cpu)
  : CpuAction(model_, cost, failed)
 {
-  p_cpu = cpu;
-  m_indexHeap = -1;
-  p_cpu->modified(true);
+  cpu_ = cpu;
+  indexHeap_ = -1;
+  cpu_->modified(true);
 }
 
 void CpuTiAction::updateIndexHeap(int i)
 {
-  m_indexHeap = i;
+  indexHeap_ = i;
 }
 
 void CpuTiAction::setState(e_surf_action_state_t state)
 {
   CpuAction::setState(state);
-  p_cpu->modified(true);
+  cpu_->modified(true);
 }
 
 int CpuTiAction::unref()
 {
   m_refcount--;
   if (!m_refcount) {
-       if (action_hook.is_linked())
-         getStateSet()->erase(getStateSet()->iterator_to(*this));
+    if (action_hook.is_linked())
+      getStateSet()->erase(getStateSet()->iterator_to(*this));
     /* remove from action_set */
     if (action_ti_hook.is_linked())
-      p_cpu->p_actionSet->erase(p_cpu->p_actionSet->iterator_to(*this));
+      cpu_->actionSet_->erase(cpu_->actionSet_->iterator_to(*this));
     /* remove from heap */
-    xbt_heap_remove(static_cast<CpuTiModel*>(getModel())->p_tiActionHeap, this->m_indexHeap);
-    p_cpu->modified(true);
+    xbt_heap_remove(static_cast<CpuTiModel*>(getModel())->tiActionHeap_, this->indexHeap_);
+    cpu_->modified(true);
     delete this;
     return 1;
   }
@@ -895,18 +805,18 @@ int CpuTiAction::unref()
 void CpuTiAction::cancel()
 {
   this->setState(SURF_ACTION_FAILED);
-  xbt_heap_remove(getModel()->getActionHeap(), this->m_indexHeap);
-  p_cpu->modified(true);
+  xbt_heap_remove(getModel()->getActionHeap(), this->indexHeap_);
+  cpu_->modified(true);
   return;
 }
 
 void CpuTiAction::suspend()
 {
   XBT_IN("(%p)", this);
-  if (m_suspended != 2) {
-    m_suspended = 1;
-    xbt_heap_remove(getModel()->getActionHeap(), m_indexHeap);
-    p_cpu->modified(true);
+  if (suspended_ != 2) {
+    suspended_ = 1;
+    xbt_heap_remove(getModel()->getActionHeap(), indexHeap_);
+    cpu_->modified(true);
   }
   XBT_OUT();
 }
@@ -914,18 +824,13 @@ void CpuTiAction::suspend()
 void CpuTiAction::resume()
 {
   XBT_IN("(%p)", this);
-  if (m_suspended != 2) {
-    m_suspended = 0;
-    p_cpu->modified(true);
+  if (suspended_ != 2) {
+    suspended_ = 0;
+    cpu_->modified(true);
   }
   XBT_OUT();
 }
 
-bool CpuTiAction::isSuspended()
-{
-  return m_suspended == 1;
-}
-
 void CpuTiAction::setMaxDuration(double duration)
 {
   double min_finish;
@@ -941,9 +846,9 @@ void CpuTiAction::setMaxDuration(double duration)
     min_finish = getFinishTime();
 
 /* add in action heap */
-  if (m_indexHeap >= 0) {
+  if (indexHeap_ >= 0) {
     CpuTiAction *heap_act = (CpuTiAction*)
-        xbt_heap_remove(getModel()->getActionHeap(), m_indexHeap);
+        xbt_heap_remove(getModel()->getActionHeap(), indexHeap_);
     if (heap_act != this)
       DIE_IMPOSSIBLE;
   }
@@ -956,14 +861,14 @@ void CpuTiAction::setPriority(double priority)
 {
   XBT_IN("(%p,%g)", this, priority);
   m_priority = priority;
-  p_cpu->modified(true);
+  cpu_->modified(true);
   XBT_OUT();
 }
 
 double CpuTiAction::getRemains()
 {
   XBT_IN("(%p)", this);
-  p_cpu->updateRemainingAmount(surf_get_clock());
+  cpu_->updateRemainingAmount(surf_get_clock());
   XBT_OUT();
   return m_remains;
 }