-/* Copyright (c) 2019-2021. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2019-2023. 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/profile/Profile.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_disk, ker_resource, "Disk resources, that fuel I/O activities");
-
-namespace simgrid {
-namespace kernel {
-namespace resource {
+namespace simgrid::kernel::resource {
xbt::signal<void(DiskAction const&, Action::State, Action::State)> DiskAction::on_state_change;
-/*********
- * Model *
- *********/
-
-DiskModel::DiskModel(const std::string& name) : Model(name)
-{
- set_maxmin_system(new lmm::System(true /* selective update */));
-}
-
/************
* Resource *
************/
void DiskImpl::destroy()
{
s4u::Disk::on_destruction(piface_);
+ piface_.on_this_destruction(piface_);
delete this;
}
-bool DiskImpl::is_used() const
-{
- return get_model()->get_maxmin_system()->constraint_used(get_constraint());
-}
-
void DiskImpl::turn_on()
{
if (not is_on()) {
Resource::turn_on();
- s4u::Disk::on_state_change(piface_);
+ s4u::Disk::on_onoff(piface_);
+ piface_.on_this_onoff(piface_);
}
}
void DiskImpl::turn_off()
{
if (is_on()) {
Resource::turn_off();
- s4u::Disk::on_state_change(piface_);
+ s4u::Disk::on_onoff(piface_);
+ piface_.on_this_onoff(piface_);
+
+ const kernel::lmm::Element* elem = nullptr;
+ double now = EngineImpl::get_clock();
+ while (const auto* var = get_constraint()->get_variable(&elem)) {
+ Action* action = var->get_id();
+ if (action->get_state() == Action::State::INITED || action->get_state() == Action::State::STARTED) {
+ action->set_finish_time(now);
+ action->set_state(Action::State::FAILED);
+ }
+ }
}
}
void DiskImpl::seal()
{
+ if (is_sealed())
+ return;
+
xbt_assert(this->get_model(), "Cannot seal Disk (%s) without setting the model first", get_cname());
lmm::System* maxmin_system = get_model()->get_maxmin_system();
+ /* set readwrite constraint if not configured by user */
+ if (readwrite_bw_ == -1) {
+ readwrite_bw_ = std::max(read_bw_.peak, write_bw_.peak);
+ }
this->set_read_constraint(maxmin_system->constraint_new(this, read_bw_.peak * read_bw_.scale))
->set_write_constraint(maxmin_system->constraint_new(this, write_bw_.peak * write_bw_.scale))
- ->set_constraint(maxmin_system->constraint_new(this, std::max(read_bw_.peak, write_bw_.peak)));
+ ->set_constraint(maxmin_system->constraint_new(this, readwrite_bw_));
+ apply_sharing_policy_cfg();
XBT_DEBUG("Create resource with read_bw '%f' write_bw '%f'", read_bw_.peak, write_bw_.peak);
Resource::seal();
turn_on();
}
+constexpr kernel::lmm::Constraint::SharingPolicy to_maxmin_policy(s4u::Disk::SharingPolicy policy)
+{
+ kernel::lmm::Constraint::SharingPolicy lmm_policy = kernel::lmm::Constraint::SharingPolicy::SHARED;
+ if (policy == s4u::Disk::SharingPolicy::NONLINEAR)
+ lmm_policy = kernel::lmm::Constraint::SharingPolicy::NONLINEAR;
+ return lmm_policy;
+}
+
+void DiskImpl::set_read_bandwidth(double value)
+{
+ read_bw_.peak = value;
+ if (constraint_read_)
+ get_model()->get_maxmin_system()->update_constraint_bound(constraint_read_, read_bw_.peak * read_bw_.scale);
+}
+
+void DiskImpl::set_write_bandwidth(double value)
+{
+ write_bw_.peak = value;
+ if (constraint_write_) {
+ get_model()->get_maxmin_system()->update_constraint_bound(constraint_write_, write_bw_.peak* write_bw_.scale);
+ }
+}
+
+void DiskImpl::set_readwrite_bandwidth(double value)
+{
+ readwrite_bw_ = value;
+ if (get_constraint()) {
+ get_model()->get_maxmin_system()->update_constraint_bound(get_constraint(), readwrite_bw_);
+ }
+}
+
+void DiskImpl::set_sharing_policy(s4u::Disk::Operation op, s4u::Disk::SharingPolicy policy,
+ const s4u::NonLinearResourceCb& cb)
+{
+ sharing_policy_[op] = policy;
+ sharing_policy_cb_[op] = cb;
+ apply_sharing_policy_cfg();
+}
+
+s4u::Disk::SharingPolicy DiskImpl::get_sharing_policy(s4u::Disk::Operation op) const
+{
+ return sharing_policy_.at(op);
+}
+
+void DiskImpl::apply_sharing_policy_cfg()
+{
+ if (get_constraint())
+ get_constraint()->set_sharing_policy(to_maxmin_policy(sharing_policy_[s4u::Disk::Operation::READWRITE]),
+ sharing_policy_cb_[s4u::Disk::Operation::READWRITE]);
+ if (constraint_read_)
+ constraint_read_->set_sharing_policy(to_maxmin_policy(sharing_policy_[s4u::Disk::Operation::READ]),
+ sharing_policy_cb_[s4u::Disk::Operation::READ]);
+ if (constraint_write_)
+ constraint_write_->set_sharing_policy(to_maxmin_policy(sharing_policy_[s4u::Disk::Operation::WRITE]),
+ sharing_policy_cb_[s4u::Disk::Operation::WRITE]);
+}
+
+void DiskImpl::set_factor_cb(const std::function<s4u::Disk::IoFactorCb>& cb)
+{
+ xbt_assert(not is_sealed(), "Cannot set I/O factor callback in an already sealed disk(%s)", get_cname());
+ factor_cb_ = cb;
+}
+
/**********
* Action *
**********/
on_state_change(*this, previous_state, new_state);
}
}
-} // namespace resource
-} // namespace kernel
-} // namespace simgrid
+
+void DiskAction::update_remains_lazy(double /*now*/)
+{
+ THROW_IMPOSSIBLE;
+}
+} // namespace simgrid::kernel::resource