-/* Copyright (c) 2004-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2004-2023. 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 "src/kernel/resource/Model.hpp"
+#include "simgrid/kernel/resource/Model.hpp"
#include "src/kernel/lmm/maxmin.hpp"
+#include "xbt/ex.h"
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(resource);
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ker_resource);
-namespace simgrid {
-namespace surf {
+namespace simgrid::kernel::resource {
-Model::Model() : maxminSystem_(nullptr)
+Model::Model(const std::string& name) : name_(name)
{
- readyActionSet_ = new ActionList();
- runningActionSet_ = new ActionList();
- failedActionSet_ = new ActionList();
- doneActionSet_ = new ActionList();
-
- modifiedSet_ = nullptr;
- updateMechanism_ = UM_UNDEFINED;
- selectiveUpdate_ = 0;
}
-Model::~Model()
+Model::~Model() =
+ default; // Don't move this declaration to the header, or it will break external projects such as SimGrid-FMI
+
+Model* Model::set_update_algorithm(Model::UpdateAlgo algo)
+{
+ update_algorithm_ = algo;
+ return this;
+}
+
+Action::ModifiedSet* Model::get_modified_set() const
{
- delete readyActionSet_;
- delete runningActionSet_;
- delete failedActionSet_;
- delete doneActionSet_;
- delete modifiedSet_;
- delete maxminSystem_;
+ return maxmin_system_->get_modified_action_set();
}
-Action* Model::actionHeapPop()
+void Model::set_maxmin_system(lmm::System* system)
{
- Action* action = actionHeap_.top().second;
- actionHeap_.pop();
- action->clearHeapHandle();
- return action;
+ maxmin_system_.release(); // ugly...
+ maxmin_system_.reset(system);
}
-double Model::nextOccuringEvent(double now)
+double Model::next_occurring_event(double now)
{
// FIXME: set the good function once and for all
- if (updateMechanism_ == UM_LAZY)
- return nextOccuringEventLazy(now);
- else if (updateMechanism_ == UM_FULL)
- return nextOccuringEventFull(now);
+ if (update_algorithm_ == Model::UpdateAlgo::LAZY)
+ return next_occurring_event_lazy(now);
+ else if (update_algorithm_ == Model::UpdateAlgo::FULL)
+ return next_occurring_event_full(now);
else
xbt_die("Invalid cpu update mechanism!");
}
-double Model::nextOccuringEventLazy(double now)
+double Model::next_occurring_event_lazy(double now)
{
- XBT_DEBUG("Before share resources, the size of modified actions set is %zu", modifiedSet_->size());
- lmm_solve(maxminSystem_);
- XBT_DEBUG("After share resources, The size of modified actions set is %zu", modifiedSet_->size());
-
- while (not modifiedSet_->empty()) {
- Action* action = &(modifiedSet_->front());
- modifiedSet_->pop_front();
- bool max_dur_flag = false;
-
- if (action->getStateSet() != runningActionSet_)
+ XBT_DEBUG("Before share resources, the size of modified actions set is %zu",
+ maxmin_system_->get_modified_action_set()->size());
+ maxmin_system_->solve();
+ Action::ModifiedSet* modified_action_set = maxmin_system_->get_modified_action_set();
+ XBT_DEBUG("After share resources, The size of modified actions set is %zu", modified_action_set->size());
+
+ while (not modified_action_set->empty()) {
+ Action* action = &(modified_action_set->front());
+ modified_action_set->pop_front();
+ ActionHeap::Type action_type = ActionHeap::Type::normal;
+
+ if (action->get_state_set() != &started_action_set_)
continue;
/* bogus priority, skip it */
- if (action->getPriority() <= 0 || action->getType() == Action::Type::LATENCY)
+ if (action->get_sharing_penalty() <= 0 || action->get_type() == ActionHeap::Type::latency)
continue;
- action->updateRemainingLazy(now);
+ action->update_remains_lazy(now);
double min = -1;
- double share = action->getVariable()->get_value();
+ double share = action->get_rate();
if (share > 0) {
double time_to_completion;
- if (action->getRemains() > 0) {
- time_to_completion = action->getRemainsNoUpdate() / share;
+ if (action->get_remains() > 0) {
+ time_to_completion = action->get_remains_no_update() / share;
} else {
time_to_completion = 0.0;
}
min = now + time_to_completion; // when the task will complete if nothing changes
}
- if ((action->getMaxDuration() > NO_MAX_DURATION) &&
- (min <= -1 || action->getStartTime() + action->getMaxDuration() < min)) {
+ if ((action->get_max_duration() != NO_MAX_DURATION) &&
+ (min <= -1 || action->get_start_time() + action->get_max_duration() < min)) {
// when the task will complete anyway because of the deadline if any
- min = action->getStartTime() + action->getMaxDuration();
- max_dur_flag = true;
+ min = action->get_start_time() + action->get_max_duration();
+ action_type = ActionHeap::Type::max_duration;
}
- XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
+ XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->get_variable()->rank_);
XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
- action->getStartTime(), min, share, action->getMaxDuration());
+ action->get_start_time(), min, share, action->get_max_duration());
if (min > -1) {
- action->heapUpdate(actionHeap_, min, max_dur_flag ? Action::Type::MAX_DURATION : Action::Type::NORMAL);
+ action_heap_.update(action, min, action_type);
XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min, now);
} else
DIE_IMPOSSIBLE;
}
// hereafter must have already the min value for this resource model
- if (not actionHeapIsEmpty()) {
- double min = actionHeapTopDate() - now;
+ if (not action_heap_.empty()) {
+ double min = action_heap_.top_date() - now;
XBT_DEBUG("minimum with the HEAP %f", min);
return min;
} else {
}
}
-double Model::nextOccuringEventFull(double /*now*/)
+double Model::next_occurring_event_full(double /*now*/)
{
- maxminSystem_->solve_fun(maxminSystem_);
+ maxmin_system_->solve();
double min = -1;
- for (Action& action : *getRunningActionSet()) {
- double value = action.getVariable()->get_value();
- if (value > 0) {
- if (action.getRemains() > 0)
- value = action.getRemainsNoUpdate() / value;
+ for (Action& action : *get_started_action_set()) {
+ if (double value = action.get_rate(); value > 0) {
+ if (action.get_remains() > 0)
+ value = action.get_remains_no_update() / value;
else
value = 0.0;
if (min < 0 || value < min) {
XBT_DEBUG("Updating min (value) with %p: %f", &action, min);
}
}
- if ((action.getMaxDuration() >= 0) && (min < 0 || action.getMaxDuration() < min)) {
- min = action.getMaxDuration();
+ if ((action.get_max_duration() >= 0) && (min < 0 || action.get_max_duration() < min)) {
+ min = action.get_max_duration();
XBT_DEBUG("Updating min (duration) with %p: %f", &action, min);
}
}
return min;
}
-void Model::updateActionsState(double now, double delta)
+void Model::update_actions_state(double now, double delta)
{
- if (updateMechanism_ == UM_FULL)
- updateActionsStateFull(now, delta);
- else if (updateMechanism_ == UM_LAZY)
- updateActionsStateLazy(now, delta);
+ if (update_algorithm_ == Model::UpdateAlgo::FULL)
+ update_actions_state_full(now, delta);
+ else if (update_algorithm_ == Model::UpdateAlgo::LAZY)
+ update_actions_state_lazy(now, delta);
else
xbt_die("Invalid cpu update mechanism!");
}
-void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
+/** Pops and returns the first action of that state set (or nullptr if none exist) */
+Action* Model::extract_action(Action::StateSet* list)
+{
+ if (list->empty())
+ return nullptr;
+ Action* res = &list->front();
+ list->pop_front();
+ return res;
+}
+
+/** Pops and returns the first finished action (or nullptr if none exist) */
+Action* Model::extract_done_action()
+{
+ return extract_action(get_finished_action_set());
+}
+
+/** Pops and returns the failed finished action (or nullptr if none exist) */
+Action* Model::extract_failed_action()
+{
+ return extract_action(get_failed_action_set());
+}
+
+void Model::update_actions_state_lazy(double /*now*/, double /*delta*/)
{
THROW_UNIMPLEMENTED;
}
-void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
+void Model::update_actions_state_full(double /*now*/, double /*delta*/)
{
THROW_UNIMPLEMENTED;
}
-} // namespace surf
-} // namespace simgrid
+} // namespace simgrid::kernel::resource
