+++ /dev/null
-/* Copyright (c) 2013-2023. 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 "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/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 *
- *********/
-
-SIMGRID_REGISTER_DISK_MODEL(S19, "Simplistic disk model.", []() {
- 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::kernel::resource {
-/*********
- * Model *
- *********/
-
-DiskS19Model::DiskS19Model(const std::string& name) : DiskModel(name)
-{
- 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);
-}
-
-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_rate() * delta));
- action.update_max_duration(delta);
-
- if (((action.get_remains_no_update() <= 0) && (action.get_variable()->get_penalty() > 0)) ||
- ((action.get_max_duration() != NO_MAX_DURATION) && (action.get_max_duration() <= 0))) {
- action.finish(Action::State::FINISHED);
- }
- }
-}
-
-/************
- * Resource *
- ************/
-
-void DiskS19::apply_event(kernel::profile::Event* triggered, double value)
-{
- /* 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");
- }
-
- 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)
- : DiskAction(model, cost, failed, model->get_maxmin_system()->variable_new(this, 1.0, -1.0, 3))
-{
-}
-
-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:
- get_model()->get_maxmin_system()->expand(get_read_constraint(), action->get_variable(), 1.0);
- break;
- case s4u::Io::OpType::WRITE:
- get_model()->get_maxmin_system()->expand(get_write_constraint(), action->get_variable(), 1.0);
- break;
- default:
- THROW_UNIMPLEMENTED;
- }
- if (const auto& factor_cb = get_factor_cb()) { // handling disk variability
- action->set_rate_factor(factor_cb(size, type));
- }
- return action;
-}
-
-} // namespace simgrid::kernel::resource
