X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5c008e5e2b41b0b2b9bcafd4f3f841554e687133..HEAD:/src/surf/cpu_cas01.cpp diff --git a/src/surf/cpu_cas01.cpp b/src/surf/cpu_cas01.cpp deleted file mode 100644 index b4115db6f7..0000000000 --- a/src/surf/cpu_cas01.cpp +++ /dev/null @@ -1,204 +0,0 @@ -/* Copyright (c) 2009-2021. 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 "cpu_cas01.hpp" -#include "simgrid/kernel/routing/NetZoneImpl.hpp" -#include "simgrid/s4u/Engine.hpp" -#include "simgrid/sg_config.hpp" -#include "src/kernel/EngineImpl.hpp" -#include "src/kernel/resource/profile/Event.hpp" -#include "src/surf/cpu_ti.hpp" -#include "src/surf/surf_interface.hpp" -#include "surf/surf.hpp" - -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(cpu_cas, res_cpu, "CPU resource, CAS01 model (used by default)"); - -/*********** - * Options * - ***********/ - -static simgrid::config::Flag - cpu_optim_opt("cpu/optim", "Optimization algorithm to use for CPU resources. ", "Lazy", - - std::map>({ - {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining)."}, - {"TI", "Trace integration. Highly optimized mode when using availability traces (only available " - "for the Cas01 CPU model for now)."}, - {"Full", "Full update of remaining and variables. Slow but may be useful when debugging."}, - }), - - [](std::string const&) { - xbt_assert(_sg_cfg_init_status < 2, - "Cannot change the optimization algorithm after the initialization"); - }); - -/********* - * Model * - *********/ -void surf_cpu_model_init_Cas01() -{ - if (cpu_optim_opt == "TI") { - simgrid::kernel::resource::CpuTiModel::create_pm_models(); - return; - } - - auto cpu_model_pm = std::make_shared(); - cpu_model_pm->set_name("Cpu_Cas01"); - simgrid::kernel::EngineImpl::get_instance()->add_model(cpu_model_pm); - simgrid::s4u::Engine::get_instance()->get_netzone_root()->get_impl()->set_cpu_pm_model(cpu_model_pm); -} - -namespace simgrid { -namespace kernel { -namespace resource { - -CpuCas01Model::CpuCas01Model() -{ - if (config::get_value("cpu/optim") == "Lazy") - set_update_algorithm(Model::UpdateAlgo::LAZY); - - bool select = config::get_value("cpu/maxmin-selective-update"); - - if (is_update_lazy()) { - xbt_assert(select || config::is_default("cpu/maxmin-selective-update"), - "You cannot disable cpu selective update when using the lazy update mechanism"); - select = true; - } - - set_maxmin_system(new lmm::System(select)); -} - -Cpu* CpuCas01Model::create_cpu(s4u::Host* host, const std::vector& speed_per_pstate) -{ - return (new CpuCas01(host, speed_per_pstate))->set_model(this); -} - -/************ - * Resource * - ************/ -bool CpuCas01::is_used() const -{ - return get_model()->get_maxmin_system()->constraint_used(get_constraint()); -} - -/** @brief take into account changes of speed (either load or max) */ -void CpuCas01::on_speed_change() -{ - const lmm::Element* elem = nullptr; - - get_model()->get_maxmin_system()->update_constraint_bound(get_constraint(), - get_core_count() * speed_.scale * speed_.peak); - while (const auto* var = get_constraint()->get_variable(&elem)) { - const auto* action = static_cast(var->get_id()); - - get_model()->get_maxmin_system()->update_variable_bound(action->get_variable(), - action->requested_core() * speed_.scale * speed_.peak); - } - - Cpu::on_speed_change(); -} - -void CpuCas01::apply_event(profile::Event* event, double value) -{ - if (event == speed_.event) { - /* TODO (Hypervisor): do the same thing for constraint_core[i] */ - xbt_assert(get_core_count() == 1, "FIXME: add speed scaling code also for constraint_core[i]"); - - speed_.scale = value; - on_speed_change(); - - tmgr_trace_event_unref(&speed_.event); - } else if (event == state_event_) { - /* TODO (Hypervisor): do the same thing for constraint_core[i] */ - xbt_assert(get_core_count() == 1, "FIXME: add state change code also for constraint_core[i]"); - - if (value > 0) { - if (not is_on()) { - XBT_VERB("Restart actors on host %s", get_iface()->get_cname()); - get_iface()->turn_on(); - } - } else { - const lmm::Element* elem = nullptr; - double date = surf_get_clock(); - - get_iface()->turn_off(); - - 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->get_state() == Action::State::IGNORED) { - action->set_finish_time(date); - action->set_state(Action::State::FAILED); - } - } - } - tmgr_trace_event_unref(&state_event_); - - } else { - xbt_die("Unknown event!\n"); - } -} - -/** @brief Start a new execution on this CPU lasting @param size flops and using one core */ -CpuAction* CpuCas01::execution_start(double size) -{ - return new CpuCas01Action(get_model(), size, not is_on(), speed_.scale * speed_.peak, get_constraint()); -} - -CpuAction* CpuCas01::execution_start(double size, int requested_cores) -{ - return new CpuCas01Action(get_model(), size, not is_on(), speed_.scale * speed_.peak, get_constraint(), - requested_cores); -} - -CpuAction* CpuCas01::sleep(double duration) -{ - if (duration > 0) - duration = std::max(duration, sg_surf_precision); - - XBT_IN("(%s,%g)", get_cname(), duration); - auto* action = new CpuCas01Action(get_model(), 1.0, not is_on(), speed_.scale * speed_.peak, get_constraint()); - - // FIXME: sleep variables should not consume 1.0 in System::expand() - action->set_max_duration(duration); - action->set_suspend_state(Action::SuspendStates::SLEEPING); - if (duration == NO_MAX_DURATION) - action->set_state(Action::State::IGNORED); - - get_model()->get_maxmin_system()->update_variable_penalty(action->get_variable(), 0.0); - if (get_model()->is_update_lazy()) { // remove action from the heap - get_model()->get_action_heap().remove(action); - // this is necessary for a variable with weight 0 since such variables are ignored in lmm and we need to set its - // max_duration correctly at the next call to share_resources - get_model()->get_modified_set()->push_front(*action); - } - - XBT_OUT(); - return action; -} - -/********** - * Action * - **********/ -CpuCas01Action::CpuCas01Action(Model* model, double cost, bool failed, double speed, lmm::Constraint* constraint, - int requested_core) - : CpuAction(model, cost, failed, - model->get_maxmin_system()->variable_new(this, 1.0 / requested_core, requested_core * speed, 1)) - , requested_core_(requested_core) -{ - if (model->is_update_lazy()) - set_last_update(); - model->get_maxmin_system()->expand(constraint, get_variable(), 1.0); -} - -int CpuCas01Action::requested_core() const -{ - return requested_core_; -} - -} // namespace resource -} // namespace kernel -} // namespace simgrid