-/* Copyright (c) 2013-2021. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2013-2022. 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 "disk_s19.hpp"
-#include "simgrid/kernel/routing/NetPoint.hpp"
-#include "simgrid/s4u/Engine.hpp"
-#include "simgrid/s4u/Host.hpp"
+#include "simgrid/sg_config.hpp"
+#include <simgrid/kernel/routing/NetPoint.hpp>
+#include <simgrid/kernel/routing/NetZoneImpl.hpp>
+#include <simgrid/s4u/Engine.hpp>
+#include <simgrid/s4u/Host.hpp>
+
+#include "src/kernel/EngineImpl.hpp"
#include "src/kernel/lmm/maxmin.hpp"
-#include "src/surf/xml/platf.hpp"
-#include "surf/surf.hpp"
+#include "src/kernel/resource/profile/Event.hpp"
+#include "src/surf/disk_s19.hpp"
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(res_disk);
+/***********
+ * Options *
+ ***********/
+static simgrid::config::Flag<std::string> cfg_disk_solver("disk/solver",
+ "Set linear equations solver used by disk model", "maxmin",
+ &simgrid::kernel::lmm::System::validate_solver);
/*********
* Model *
*********/
-void surf_disk_model_init_default()
+void surf_disk_model_init_S19()
{
- /* FIXME[donassolo]: this smells bad, but works
- * (the constructor saves its pointer in all_existing_models and models_by_type :O).
- * We need a manager for these models */
- new simgrid::kernel::resource::DiskS19Model();
+ auto disk_model = std::make_shared<simgrid::kernel::resource::DiskS19Model>("Disk");
+ auto* engine = simgrid::kernel::EngineImpl::get_instance();
+ engine->add_model(disk_model);
+ engine->get_netzone_root()->set_disk_model(disk_model);
}
-namespace simgrid {
-namespace kernel {
-namespace resource {
+namespace simgrid::kernel::resource {
+/*********
+ * Model *
+ *********/
-DiskS19Model::DiskS19Model()
+DiskS19Model::DiskS19Model(const std::string& name) : DiskModel(name)
{
- all_existing_models.push_back(this);
- models_by_type[simgrid::kernel::resource::Model::Type::DISK].push_back(this);
+ set_maxmin_system(lmm::System::build(cfg_disk_solver.get(), true /* selective update */));
}
+
DiskImpl* DiskS19Model::create_disk(const std::string& name, double read_bandwidth, double write_bandwidth)
{
return (new DiskS19(name, read_bandwidth, write_bandwidth))->set_model(this);
}
-double DiskS19Model::next_occurring_event(double now)
-{
- return DiskModel::next_occurring_event_full(now);
-}
-
void DiskS19Model::update_actions_state(double /*now*/, double delta)
{
for (auto it = std::begin(*get_started_action_set()); it != std::end(*get_started_action_set());) {
auto& action = *it;
++it; // increment iterator here since the following calls to action.finish() may invalidate it
- action.update_remains(rint(action.get_variable()->get_value() * delta));
+ action.update_remains(rint(action.get_rate() * delta));
action.update_max_duration(delta);
if (((action.get_remains_no_update() <= 0) && (action.get_variable()->get_penalty() > 0)) ||
/************
* Resource *
************/
-DiskAction* DiskS19::io_start(sg_size_t size, s4u::Io::OpType type)
-{
- return new DiskS19Action(get_model(), static_cast<double>(size), not is_on(), this, type);
-}
-DiskAction* DiskS19::read(sg_size_t size)
+void DiskS19::apply_event(kernel::profile::Event* triggered, double value)
{
- return new DiskS19Action(get_model(), static_cast<double>(size), not is_on(), this, s4u::Io::OpType::READ);
-}
+ /* Find out which of my iterators was triggered, and react accordingly */
+ if (triggered == get_read_event()) {
+ set_read_bandwidth(value);
+ unref_read_event();
+ } else if (triggered == get_write_event()) {
+ set_write_bandwidth(value);
+ unref_write_event();
+ } else if (triggered == get_state_event()) {
+ if (value > 0)
+ turn_on();
+ else
+ turn_off();
+ unref_state_event();
+ } else {
+ xbt_die("Unknown event!\n");
+ }
-DiskAction* DiskS19::write(sg_size_t size)
-{
- return new DiskS19Action(get_model(), static_cast<double>(size), not is_on(), this, s4u::Io::OpType::WRITE);
+ XBT_DEBUG("There was a resource state event, need to update actions related to the constraint (%p)",
+ get_constraint());
}
/**********
* Action *
**********/
-DiskS19Action::DiskS19Action(Model* model, double cost, bool failed, DiskImpl* disk, s4u::Io::OpType type)
- : DiskAction(model, cost, failed, model->get_maxmin_system()->variable_new(this, 1.0, -1.0, 3), disk, type)
+DiskS19Action::DiskS19Action(Model* model, double cost, bool failed)
+ : DiskAction(model, cost, failed, model->get_maxmin_system()->variable_new(this, 1.0, -1.0, 3))
{
- XBT_IN("(%s,%g", disk->get_cname(), cost);
+}
- // Must be less than the max bandwidth for all actions
- model->get_maxmin_system()->expand(disk->get_constraint(), get_variable(), 1.0);
+DiskAction* DiskS19::io_start(sg_size_t size, s4u::Io::OpType type)
+{
+ auto* action = new DiskS19Action(get_model(), static_cast<double>(size), not is_on());
+ get_model()->get_maxmin_system()->expand(get_constraint(), action->get_variable(), 1.0);
switch (type) {
case s4u::Io::OpType::READ:
- model->get_maxmin_system()->expand(disk->get_read_constraint(), get_variable(), 1.0);
+ get_model()->get_maxmin_system()->expand(get_read_constraint(), action->get_variable(), 1.0);
break;
case s4u::Io::OpType::WRITE:
- model->get_maxmin_system()->expand(disk->get_write_constraint(), get_variable(), 1.0);
+ get_model()->get_maxmin_system()->expand(get_write_constraint(), action->get_variable(), 1.0);
break;
default:
THROW_UNIMPLEMENTED;
}
- XBT_OUT();
-}
-
-void DiskS19Action::cancel()
-{
- set_state(Action::State::FAILED);
-}
-
-void DiskS19Action::suspend()
-{
- XBT_IN("(%p)", this);
- if (is_running()) {
- get_model()->get_maxmin_system()->update_variable_penalty(get_variable(), 0.0);
- set_suspend_state(Action::SuspendStates::SUSPENDED);
+ if (const auto& factor_cb = get_factor_cb()) { // handling disk variability
+ action->set_rate_factor(factor_cb(size, type));
}
- XBT_OUT();
-}
-
-void DiskS19Action::resume()
-{
- THROW_UNIMPLEMENTED;
-}
-
-void DiskS19Action::set_max_duration(double /*duration*/)
-{
- THROW_UNIMPLEMENTED;
+ return action;
}
-void DiskS19Action::set_sharing_penalty(double)
-{
- THROW_UNIMPLEMENTED;
-}
-void DiskS19Action::update_remains_lazy(double /*now*/)
-{
- THROW_IMPOSSIBLE;
-}
-} // namespace resource
-} // namespace kernel
-} // namespace simgrid
+} // namespace simgrid::kernel::resource
