src/kernel/resource/Action.cpp

   1 /* Copyright (c) 2004-2021. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include "simgrid/kernel/resource/Action.hpp"
   7 #include "simgrid/kernel/resource/Model.hpp"
   8 #include "src/kernel/lmm/maxmin.hpp"
   9 #include "src/surf/surf_interface.hpp"
  10 #include "surf/surf.hpp"
  11
  12 XBT_LOG_NEW_CATEGORY(kernel, "SimGrid internals");
  13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ker_resource, kernel, "Resources, modeling the platform performance");
  14
  15 namespace simgrid {
  16 namespace kernel {
  17 namespace resource {
  18
  19 Action::Action(Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr) {}
  20
  21 Action::Action(Model* model, double cost, bool failed, lmm::Variable* var)
  22     : remains_(cost), start_time_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
  23 {
  24   if (failed)
  25     state_set_ = model_->get_failed_action_set();
  26   else
  27     state_set_ = model_->get_started_action_set();
  28
  29   state_set_->push_back(*this);
  30 }
  31
  32 Action::~Action()
  33 {
  34   if (state_set_hook_.is_linked())
  35     xbt::intrusive_erase(*state_set_, *this);
  36   if (get_variable())
  37     model_->get_maxmin_system()->variable_free(get_variable());
  38
  39   /* remove from heap on need (ie, if selective update) */
  40   model_->get_action_heap().remove(this);
  41   if (modified_set_hook_.is_linked())
  42     xbt::intrusive_erase(*model_->get_modified_set(), *this);
  43 }
  44
  45 void Action::finish(Action::State state)
  46 {
  47   finish_time_ = surf_get_clock();
  48   set_remains(0);
  49   set_state(state);
  50 }
  51
  52 Action::State Action::get_state() const
  53 {
  54   if (state_set_ == model_->get_inited_action_set())
  55     return Action::State::INITED;
  56   if (state_set_ == model_->get_started_action_set())
  57     return Action::State::STARTED;
  58   if (state_set_ == model_->get_failed_action_set())
  59     return Action::State::FAILED;
  60   if (state_set_ == model_->get_finished_action_set())
  61     return Action::State::FINISHED;
  62   if (state_set_ == model_->get_ignored_action_set())
  63     return Action::State::IGNORED;
  64   THROW_IMPOSSIBLE;
  65 }
  66
  67 void Action::set_state(Action::State state)
  68 {
  69   xbt::intrusive_erase(*state_set_, *this);
  70   switch (state) {
  71     case Action::State::INITED:
  72       state_set_ = model_->get_inited_action_set();
  73       break;
  74     case Action::State::STARTED:
  75       state_set_ = model_->get_started_action_set();
  76       break;
  77     case Action::State::FAILED:
  78       state_set_ = model_->get_failed_action_set();
  79       break;
  80     case Action::State::FINISHED:
  81       state_set_ = model_->get_finished_action_set();
  82       break;
  83     case Action::State::IGNORED:
  84       state_set_ = model_->get_ignored_action_set();
  85       break;
  86     default:
  87       state_set_ = nullptr;
  88       break;
  89   }
  90   if (state_set_)
  91     state_set_->push_back(*this);
  92 }
  93
  94 double Action::get_bound() const
  95 {
  96   return variable_ ? variable_->get_bound() : 0;
  97 }
  98
  99 double Action::get_rate() const
 100 {
 101   return variable_ ? variable_->get_value() * factor_ : 0;
 102 }
 103
 104 void Action::set_bound(double bound)
 105 {
 106   XBT_IN("(%p,%g)", this, bound);
 107   if (variable_)
 108     model_->get_maxmin_system()->update_variable_bound(variable_, bound);
 109
 110   if (model_->is_update_lazy() && get_last_update() != surf_get_clock())
 111     model_->get_action_heap().remove(this);
 112   XBT_OUT();
 113 }
 114
 115 void Action::ref()
 116 {
 117   refcount_++;
 118 }
 119
 120 void Action::set_max_duration(double duration)
 121 {
 122   max_duration_ = duration;
 123   if (model_->is_update_lazy()) // remove action from the heap
 124     model_->get_action_heap().remove(this);
 125 }
 126
 127 void Action::set_sharing_penalty(double sharing_penalty)
 128 {
 129   XBT_IN("(%p,%g)", this, sharing_penalty);
 130   sharing_penalty_ = sharing_penalty;
 131   model_->get_maxmin_system()->update_variable_penalty(get_variable(), sharing_penalty);
 132
 133   if (model_->is_update_lazy())
 134     model_->get_action_heap().remove(this);
 135   XBT_OUT();
 136 }
 137
 138 void Action::cancel()
 139 {
 140   set_state(Action::State::FAILED);
 141   if (model_->is_update_lazy()) {
 142     if (modified_set_hook_.is_linked())
 143       xbt::intrusive_erase(*model_->get_modified_set(), *this);
 144     model_->get_action_heap().remove(this);
 145   }
 146 }
 147
 148 bool Action::unref()
 149 {
 150   refcount_--;
 151   if (not refcount_) {
 152     delete this;
 153     return true;
 154   }
 155   return false;
 156 }
 157
 158 void Action::suspend()
 159 {
 160   XBT_IN("(%p)", this);
 161   if (suspended_ != SuspendStates::SLEEPING) {
 162     model_->get_maxmin_system()->update_variable_penalty(get_variable(), 0.0);
 163     if (model_->is_update_lazy()) {
 164       model_->get_action_heap().remove(this);
 165       if (state_set_ == model_->get_started_action_set() && sharing_penalty_ > 0) {
 166         // If we have a lazy model, we need to update the remaining value accordingly
 167         update_remains_lazy(surf_get_clock());
 168       }
 169     }
 170     suspended_ = SuspendStates::SUSPENDED;
 171   }
 172   XBT_OUT();
 173 }
 174
 175 void Action::resume()
 176 {
 177   XBT_IN("(%p)", this);
 178   if (suspended_ != SuspendStates::SLEEPING) {
 179     model_->get_maxmin_system()->update_variable_penalty(get_variable(), get_sharing_penalty());
 180     suspended_ = SuspendStates::RUNNING;
 181     if (model_->is_update_lazy())
 182       model_->get_action_heap().remove(this);
 183   }
 184   XBT_OUT();
 185 }
 186
 187 double Action::get_remains()
 188 {
 189   XBT_IN("(%p)", this);
 190   /* update remains before returning it */
 191   if (model_->is_update_lazy()) /* update remains before return it */
 192     update_remains_lazy(surf_get_clock());
 193   XBT_OUT();
 194   return remains_;
 195 }
 196
 197 void Action::update_max_duration(double delta)
 198 {
 199   if (max_duration_ != NO_MAX_DURATION)
 200     double_update(&max_duration_, delta, sg_surf_precision);
 201 }
 202
 203 void Action::update_remains(double delta)
 204 {
 205   double_update(&remains_, delta, sg_maxmin_precision * sg_surf_precision);
 206 }
 207
 208 void Action::set_last_update()
 209 {
 210   last_update_ = surf_get_clock();
 211 }
 212
 213 double ActionHeap::top_date() const
 214 {
 215   return top().first;
 216 }
 217
 218 void ActionHeap::insert(Action* action, double date, ActionHeap::Type type)
 219 {
 220   action->type_      = type;
 221   action->heap_hook_ = emplace(std::make_pair(date, action));
 222 }
 223
 224 void ActionHeap::remove(Action* action)
 225 {
 226   action->type_ = ActionHeap::Type::unset;
 227   if (action->heap_hook_) {
 228     erase(*action->heap_hook_);
 229     action->heap_hook_ = boost::none;
 230   }
 231 }
 232
 233 void ActionHeap::update(Action* action, double date, ActionHeap::Type type)
 234 {
 235   action->type_ = type;
 236   if (action->heap_hook_) {
 237     heap_type::update(*action->heap_hook_, std::make_pair(date, action));
 238   } else {
 239     action->heap_hook_ = emplace(std::make_pair(date, action));
 240   }
 241 }
 242
 243 Action* ActionHeap::pop()
 244 {
 245   Action* action = top().second;
 246   heap_type::pop();
 247   action->heap_hook_ = boost::none;
 248   return action;
 249 }
 250
 251 } // namespace resource
 252 } // namespace kernel
 253 } // namespace simgrid