-/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2023. 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/modelchecker.h"
-#include "src/mc/mc_replay.hpp"
+#include <simgrid/Exception.hpp>
+#include <simgrid/kernel/routing/NetPoint.hpp>
+#include <simgrid/modelchecker.h>
+#include <simgrid/s4u/Engine.hpp>
#include "src/kernel/activity/ExecImpl.hpp"
-#include "src/simix/smx_host_private.hpp"
-#include "src/surf/surf_interface.hpp"
-#include "src/surf/cpu_interface.hpp"
+#include "src/kernel/actor/ActorImpl.hpp"
+#include "src/kernel/actor/SimcallObserver.hpp"
+#include "src/kernel/resource/CpuImpl.hpp"
+#include "src/kernel/resource/HostImpl.hpp"
+#include "src/mc/mc_replay.hpp"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ker_cpu, kernel, "Kernel cpu-related synchronization");
+
+namespace simgrid::kernel::activity {
+
+ExecImpl::ExecImpl()
+{
+ piface_ = new s4u::Exec(this);
+ actor::ActorImpl* self = actor::ActorImpl::self();
+ if (self) {
+ set_actor(self);
+ self->activities_.insert(this);
+ }
+}
+
+ExecImpl& ExecImpl::set_host(s4u::Host* host)
+{
+ ActivityImpl::set_hosts({host});
+ return *this;
+}
-#include "simgrid/s4u/Host.hpp"
+ExecImpl& ExecImpl::set_hosts(const std::vector<s4u::Host*>& hosts)
+{
+ ActivityImpl::set_hosts(hosts);
+ return *this;
+}
+
+ExecImpl& ExecImpl::set_timeout(double timeout)
+{
+ if (timeout >= 0 && not MC_is_active() && not MC_record_replay_is_active()) {
+ timeout_detector_.reset(get_host()->get_cpu()->sleep(timeout));
+ timeout_detector_->set_activity(this);
+ }
+ return *this;
+}
+
+ExecImpl& ExecImpl::set_flops_amount(double flops_amount)
+{
+ flops_amounts_.assign(1, flops_amount);
+ return *this;
+}
+
+ExecImpl& ExecImpl::set_flops_amounts(const std::vector<double>& flops_amounts)
+{
+ flops_amounts_ = flops_amounts;
+ return *this;
+}
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_process);
+ExecImpl& ExecImpl::set_bytes_amounts(const std::vector<double>& bytes_amounts)
+{
+ bytes_amounts_ = bytes_amounts;
-simgrid::kernel::activity::ExecImpl::ExecImpl(const char* name, sg_host_t host) : host_(host)
+ return *this;
+}
+ExecImpl& ExecImpl::set_thread_count(int thread_count)
{
- if (name)
- this->name = name;
- this->state = SIMIX_RUNNING;
- XBT_DEBUG("Create exec %p", this);
+ thread_count_ = thread_count;
+
+ return *this;
}
-simgrid::kernel::activity::ExecImpl::~ExecImpl()
+ExecImpl* ExecImpl::start()
{
- if (surfAction_)
- surfAction_->unref();
- if (timeoutDetector)
- timeoutDetector->unref();
- XBT_DEBUG("Destroy exec %p", this);
+ set_state(State::RUNNING);
+ if (not MC_is_active() && not MC_record_replay_is_active()) {
+ if (get_hosts().size() == 1) {
+ if (thread_count_ == 1) {
+ model_action_ = get_host()->get_cpu()->execution_start(flops_amounts_.front(), bound_);
+ model_action_->set_sharing_penalty(sharing_penalty_);
+ } else {
+ auto host_model = get_host()->get_netpoint()->get_englobing_zone()->get_host_model();
+ model_action_ = host_model->execute_thread(get_host(), flops_amounts_.front(), thread_count_);
+ }
+ model_action_->set_category(get_tracing_category());
+ } else {
+ // get the model from first host since we have only 1 by now
+ auto host_model = get_host()->get_netpoint()->get_englobing_zone()->get_host_model();
+ model_action_ = host_model->execute_parallel(get_hosts(), flops_amounts_.data(), bytes_amounts_.data(), -1);
+ }
+ model_action_->set_activity(this);
+ set_start_time(model_action_->get_start_time());
+ }
+
+ XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
+ return this;
}
-void simgrid::kernel::activity::ExecImpl::suspend()
+double ExecImpl::get_remaining() const
{
- XBT_VERB("This exec is suspended (remain: %f)", surfAction_->getRemains());
- if (surfAction_)
- surfAction_->suspend();
+ if (get_state() == State::WAITING || get_state() == State::FAILED)
+ return flops_amounts_.front();
+ return ActivityImpl::get_remaining();
}
-void simgrid::kernel::activity::ExecImpl::resume()
+double ExecImpl::get_seq_remaining_ratio()
{
- XBT_VERB("This exec is resumed (remain: %f)", surfAction_->getRemains());
- if (surfAction_)
- surfAction_->resume();
+ if (get_state() == State::WAITING)
+ return 1;
+ return (model_action_ == nullptr) ? 0 : model_action_->get_remains() / model_action_->get_cost();
}
-double simgrid::kernel::activity::ExecImpl::remains()
+double ExecImpl::get_par_remaining_ratio()
{
- xbt_assert(host_ != nullptr, "Calling remains() on a parallel execution is not allowed. "
- "We would need to return a vector instead of a scalar. "
- "Did you mean remainingRatio() instead?");
+ // parallel task: their remain is already between 0 and 1
+ if (get_state() == State::WAITING)
+ return 1;
+ return (model_action_ == nullptr) ? 0 : model_action_->get_remains();
+}
- return surfAction_ ? surfAction_->getRemains() : 0;
+ExecImpl& ExecImpl::set_bound(double bound)
+{
+ bound_ = bound;
+ return *this;
}
-double simgrid::kernel::activity::ExecImpl::remainingRatio()
+ExecImpl& ExecImpl::set_sharing_penalty(double sharing_penalty)
{
- if (host_ == nullptr) // parallel task: their remain is already between 0 and 1 (see comment in ExecImpl::remains())
- return surfAction_->getRemains();
- else // Actually compute the ratio for sequential tasks
- return surfAction_->getRemains() / surfAction_->getCost();
+ sharing_penalty_ = sharing_penalty;
+ return *this;
}
-void simgrid::kernel::activity::ExecImpl::setBound(double bound)
+ExecImpl& ExecImpl::update_sharing_penalty(double sharing_penalty)
{
- if (surfAction_)
- surfAction_->setBound(bound);
+ sharing_penalty_ = sharing_penalty;
+ model_action_->set_sharing_penalty(sharing_penalty);
+ return *this;
}
-void simgrid::kernel::activity::ExecImpl::post()
+void ExecImpl::post()
{
- if (host_ && host_->isOff()) { /* FIXME: handle resource failure for parallel tasks too */
- /* If the host running the synchro failed, notice it. This way, the asking
- * process can be killed if it runs on that host itself */
- state = SIMIX_FAILED;
- } else if (surfAction_->getState() == simgrid::surf::Action::State::failed) {
- /* If the host running the synchro didn't fail, then the synchro was canceled */
- state = SIMIX_CANCELED;
- } else if (timeoutDetector && timeoutDetector->getState() == simgrid::surf::Action::State::done) {
- state = SIMIX_TIMEOUT;
+ xbt_assert(model_action_ != nullptr);
+ if (auto const& hosts = get_hosts();
+ std::any_of(hosts.begin(), hosts.end(), [](const s4u::Host* host) { return not host->is_on(); })) {
+ /* If one of the hosts running the synchro failed, notice it. This way, the asking
+ * process can be killed if it runs on that host itself */
+ set_state(State::FAILED);
+ } else if (model_action_->get_state() == resource::Action::State::FAILED) {
+ /* If all the hosts are running the synchro didn't fail, then the synchro was canceled */
+ set_state(State::CANCELED);
+ } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED &&
+ model_action_->get_remains() > 0.0) {
+ model_action_->set_state(resource::Action::State::FAILED);
+ set_state(State::TIMEOUT);
} else {
- state = SIMIX_DONE;
+ set_state(State::DONE);
}
- if (surfAction_) {
- surfAction_->unref();
- surfAction_ = nullptr;
+ clean_action();
+ timeout_detector_.reset();
+ if (get_actor() != nullptr) {
+ get_actor()->activities_.erase(this);
}
- if (timeoutDetector) {
- timeoutDetector->unref();
- timeoutDetector = nullptr;
+ if (get_state() != State::FAILED && cb_id_ >= 0)
+ s4u::Host::on_state_change.disconnect(cb_id_);
+ /* Answer all simcalls associated with the synchro */
+ finish();
+}
+
+void ExecImpl::set_exception(actor::ActorImpl* issuer)
+{
+ switch (get_state()) {
+ case State::FAILED:
+ static_cast<s4u::Exec*>(get_iface())->complete(s4u::Activity::State::FAILED);
+ if (issuer->get_host()->is_on())
+ issuer->exception_ = std::make_exception_ptr(HostFailureException(XBT_THROW_POINT, "Host failed"));
+ else /* else, the actor will be killed with no possibility to survive */
+ issuer->set_wannadie();
+ break;
+
+ case State::CANCELED:
+ issuer->exception_ = std::make_exception_ptr(CancelException(XBT_THROW_POINT, "Execution Canceled"));
+ break;
+
+ case State::TIMEOUT:
+ issuer->exception_ = std::make_exception_ptr(TimeoutException(XBT_THROW_POINT, "Timeouted"));
+ break;
+
+ default:
+ xbt_assert(get_state() == State::DONE, "Internal error in ExecImpl::finish(): unexpected synchro state %s",
+ get_state_str());
}
+}
+void ExecImpl::finish()
+{
+ XBT_DEBUG("ExecImpl::finish() in state %s", get_state_str());
+ while (not simcalls_.empty()) {
+ actor::Simcall* simcall = simcalls_.front();
+ simcalls_.pop_front();
+
+ if (simcall->call_ == actor::Simcall::Type::NONE) // FIXME: maybe a better way to handle this case
+ continue; // if process handling comm is killed
+
+ handle_activity_waitany(simcall);
- onCompletion(this);
- /* If there are simcalls associated with the synchro, then answer them */
- if (not simcalls.empty())
- SIMIX_execution_finish(this);
+ set_exception(simcall->issuer_);
+
+ simcall->issuer_->waiting_synchro_ = nullptr;
+ /* Fail the process if the host is down */
+ if (simcall->issuer_->get_host()->is_on())
+ simcall->issuer_->simcall_answer();
+ else
+ simcall->issuer_->set_wannadie();
+ }
}
-simgrid::kernel::activity::ActivityImpl*
-simgrid::kernel::activity::ExecImpl::migrate(simgrid::s4u::Host* to)
+void ExecImpl::reset()
{
+ clear_hosts();
+ bytes_amounts_.clear();
+ flops_amounts_.clear();
+ set_start_time(-1.0);
+}
+ActivityImpl* ExecImpl::migrate(s4u::Host* to)
+{
if (not MC_is_active() && not MC_record_replay_is_active()) {
- surf_action_t oldAction = this->surfAction_;
- surf_action_t newAction = to->pimpl_cpu->execution_start(oldAction->getCost());
- newAction->setRemains(oldAction->getRemains());
- newAction->setData(this);
- newAction->setSharingWeight(oldAction->getPriority());
-
- // FIXME: the user-defined bound seem to not be kept by LMM, that seem to overwrite it for the multi-core modeling.
- // I hope that the user did not provide any.
-
- oldAction->setData(nullptr);
- oldAction->cancel();
- oldAction->unref();
- this->surfAction_ = newAction;
+ resource::Action* old_action = this->model_action_;
+ resource::Action* new_action = to->get_cpu()->execution_start(old_action->get_cost(), old_action->get_user_bound());
+ new_action->set_remains(old_action->get_remains());
+ new_action->set_activity(this);
+ new_action->set_sharing_penalty(old_action->get_sharing_penalty());
+ new_action->set_user_bound(old_action->get_user_bound());
+
+ old_action->set_activity(nullptr);
+ old_action->cancel();
+ old_action->unref();
+ this->model_action_ = new_action;
}
- onMigration(this, to);
+ on_migration(*this, to);
return this;
}
/*************
* Callbacks *
*************/
-simgrid::xbt::signal<void(simgrid::kernel::activity::ExecImplPtr)> simgrid::kernel::activity::ExecImpl::onCreation;
-simgrid::xbt::signal<void(simgrid::kernel::activity::ExecImplPtr)> simgrid::kernel::activity::ExecImpl::onCompletion;
-simgrid::xbt::signal<void(simgrid::kernel::activity::ExecImplPtr, simgrid::s4u::Host*)> simgrid::kernel::activity::ExecImpl::onMigration;
+xbt::signal<void(ExecImpl const&, s4u::Host*)> ExecImpl::on_migration;
+
+} // namespace simgrid::kernel::activity