-/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2020. 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/activity/ExecImpl.hpp"
+#include "simgrid/Exception.hpp"
#include "simgrid/modelchecker.h"
#include "src/mc/mc_replay.hpp"
-
-#include "src/kernel/activity/ExecImpl.hpp"
-#include "src/simix/smx_host_private.hpp"
-#include "src/surf/surf_interface.hpp"
+#include "src/surf/HostImpl.hpp"
#include "src/surf/cpu_interface.hpp"
+#include "src/surf/surf_interface.hpp"
#include "simgrid/s4u/Host.hpp"
+#include <boost/range/algorithm.hpp>
+
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_process);
-simgrid::kernel::activity::ExecImpl::ExecImpl(const char* name, sg_host_t host) : host_(host)
+void simcall_HANDLER_execution_wait(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro, double timeout)
{
- if (name)
- this->name = name;
- this->state = SIMIX_RUNNING;
- XBT_DEBUG("Create exec %p", this);
+ synchro->wait_for(simcall->issuer_, timeout);
}
-simgrid::kernel::activity::ExecImpl::~ExecImpl()
+void simcall_HANDLER_execution_waitany_for(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* execs[],
+ size_t count, double timeout)
+{
+ if (timeout < 0.0) {
+ simcall->timeout_cb_ = nullptr;
+ } else {
+ simcall->timeout_cb_ = simgrid::simix::Timer::set(SIMIX_get_clock() + timeout, [simcall, execs, count]() {
+ for (size_t i = 0; i < count; i++) {
+ // Remove the first occurrence of simcall:
+ auto* exec = execs[i];
+ auto j = boost::range::find(exec->simcalls_, simcall);
+ if (j != exec->simcalls_.end())
+ exec->simcalls_.erase(j);
+ }
+ simcall_execution_waitany_for__set__result(simcall, -1);
+ simcall->issuer_->simcall_answer();
+ });
+ }
+
+ for (size_t i = 0; i < count; i++) {
+ /* associate this simcall to the the synchro */
+ auto* exec = execs[i];
+ exec->simcalls_.push_back(simcall);
+
+ /* see if the synchro is already finished */
+ if (exec->state_ != simgrid::kernel::activity::State::WAITING &&
+ exec->state_ != simgrid::kernel::activity::State::RUNNING) {
+ exec->finish();
+ break;
+ }
+ }
+}
+
+namespace simgrid {
+namespace kernel {
+namespace activity {
+
+ExecImpl& ExecImpl::set_host(s4u::Host* host)
{
- if (surfAction_)
- surfAction_->unref();
- if (timeoutDetector)
- timeoutDetector->unref();
- XBT_DEBUG("Destroy exec %p", this);
+ hosts_.assign(1, host);
+ return *this;
}
-void simgrid::kernel::activity::ExecImpl::suspend()
+ExecImpl& ExecImpl::set_hosts(const std::vector<s4u::Host*>& hosts)
{
- XBT_VERB("This exec is suspended (remain: %f)", surfAction_->getRemains());
- if (surfAction_)
- surfAction_->suspend();
+ hosts_ = hosts;
+ return *this;
}
-void simgrid::kernel::activity::ExecImpl::resume()
+ExecImpl& ExecImpl::set_timeout(double timeout)
{
- XBT_VERB("This exec is resumed (remain: %f)", surfAction_->getRemains());
- if (surfAction_)
- surfAction_->resume();
+ if (timeout > 0 && not MC_is_active() && not MC_record_replay_is_active()) {
+ timeout_detector_.reset(hosts_.front()->pimpl_cpu->sleep(timeout));
+ timeout_detector_->set_activity(this);
+ }
+ return *this;
}
-double simgrid::kernel::activity::ExecImpl::remains()
+ExecImpl& ExecImpl::set_flops_amount(double flops_amount)
{
- 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?");
+ flops_amounts_.assign(1, flops_amount);
+ return *this;
+}
- return surfAction_ ? surfAction_->getRemains() : 0;
+ExecImpl& ExecImpl::set_flops_amounts(const std::vector<double>& flops_amounts)
+{
+ flops_amounts_ = flops_amounts;
+ return *this;
}
-double simgrid::kernel::activity::ExecImpl::remainingRatio()
+ExecImpl& ExecImpl::set_bytes_amounts(const std::vector<double>& bytes_amounts)
{
- 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();
+ bytes_amounts_ = bytes_amounts;
+
+ return *this;
}
-void simgrid::kernel::activity::ExecImpl::setBound(double bound)
+ExecImpl* ExecImpl::start()
{
- if (surfAction_)
- surfAction_->set_bound(bound);
+ state_ = State::RUNNING;
+ if (not MC_is_active() && not MC_record_replay_is_active()) {
+ if (hosts_.size() == 1) {
+ surf_action_ = hosts_.front()->pimpl_cpu->execution_start(flops_amounts_.front());
+ surf_action_->set_sharing_penalty(sharing_penalty_);
+ surf_action_->set_category(get_tracing_category());
+
+ if (bound_ > 0)
+ surf_action_->set_bound(bound_);
+ } else {
+ surf_action_ = surf_host_model->execute_parallel(hosts_, flops_amounts_.data(), bytes_amounts_.data(), -1);
+ }
+ surf_action_->set_activity(this);
+ }
+
+ XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
+ return this;
}
-void simgrid::kernel::activity::ExecImpl::post()
+void ExecImpl::wait_for(actor::ActorImpl* issuer, double timeout)
{
- 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_->get_state() == simgrid::kernel::resource::Action::State::failed) {
- /* If the host running the synchro didn't fail, then the synchro was canceled */
- state = SIMIX_CANCELED;
- } else if (timeoutDetector && timeoutDetector->get_state() == simgrid::kernel::resource::Action::State::done) {
- state = SIMIX_TIMEOUT;
- } else {
- state = SIMIX_DONE;
+ XBT_DEBUG("Wait for execution of synchro %p, state %d", this, (int)state_);
+ xbt_assert(std::isfinite(timeout), "timeout is not finite!");
+
+ /* Associate this simcall to the synchro */
+ register_simcall(&issuer->simcall);
+
+ if (MC_is_active() || MC_record_replay_is_active()) {
+ int idx = SIMCALL_GET_MC_VALUE(issuer->simcall);
+ if (idx == 0) {
+ state_ = simgrid::kernel::activity::State::DONE;
+ } else {
+ /* If we reached this point, the wait simcall must have a timeout */
+ /* Otherwise it shouldn't be enabled and executed by the MC */
+ if (timeout < 0.0)
+ THROW_IMPOSSIBLE;
+ state_ = simgrid::kernel::activity::State::TIMEOUT;
+ }
+ finish();
+ return;
}
- if (surfAction_) {
- surfAction_->unref();
- surfAction_ = nullptr;
+ /* If the synchro is already finished then perform the error handling */
+ if (state_ != simgrid::kernel::activity::State::RUNNING) {
+ finish();
+ } else { /* we need a sleep action (even when there is no timeout) to be notified of host failures */
+ set_timeout(timeout);
}
- if (timeoutDetector) {
- timeoutDetector->unref();
- timeoutDetector = nullptr;
+}
+
+double ExecImpl::get_seq_remaining_ratio()
+{
+ return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains() / surf_action_->get_cost();
+}
+
+double ExecImpl::get_par_remaining_ratio()
+{
+ // parallel task: their remain is already between 0 and 1
+ return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains();
+}
+
+ExecImpl& ExecImpl::set_bound(double bound)
+{
+ bound_ = bound;
+ return *this;
+}
+
+ExecImpl& ExecImpl::set_sharing_penalty(double sharing_penalty)
+{
+ sharing_penalty_ = sharing_penalty;
+ return *this;
+}
+
+void ExecImpl::post()
+{
+ if (hosts_.size() == 1 && not hosts_.front()->is_on()) { /* 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_ = State::FAILED;
+ } else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
+ /* If the host running the synchro didn't fail, then the synchro was canceled */
+ state_ = State::CANCELED;
+ } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
+ state_ = State::TIMEOUT;
+ } else {
+ state_ = State::DONE;
}
- onCompletion(this);
- /* If there are simcalls associated with the synchro, then answer them */
- if (not simcalls.empty())
- SIMIX_execution_finish(this);
+ clean_action();
+ timeout_detector_.reset();
+ /* Answer all simcalls associated with the synchro */
+ finish();
}
-simgrid::kernel::activity::ActivityImpl*
-simgrid::kernel::activity::ExecImpl::migrate(simgrid::s4u::Host* to)
+void ExecImpl::finish()
{
+ while (not simcalls_.empty()) {
+ smx_simcall_t simcall = simcalls_.front();
+ simcalls_.pop_front();
+ /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany
+ * list. Afterwards, get the position of the actual synchro in the waitany list and return it as the result of the
+ * simcall */
+
+ if (simcall->call_ == SIMCALL_NONE) // FIXME: maybe a better way to handle this case
+ continue; // if process handling comm is killed
+ if (simcall->call_ == SIMCALL_EXECUTION_WAITANY_FOR) {
+ simgrid::kernel::activity::ExecImpl** execs = simcall_execution_waitany_for__get__execs(simcall);
+ size_t count = simcall_execution_waitany_for__get__count(simcall);
+
+ for (size_t i = 0; i < count; i++) {
+ // Remove the first occurrence of simcall:
+ auto* exec = execs[i];
+ auto j = boost::range::find(exec->simcalls_, simcall);
+ if (j != exec->simcalls_.end())
+ exec->simcalls_.erase(j);
+
+ if (simcall->timeout_cb_) {
+ simcall->timeout_cb_->remove();
+ simcall->timeout_cb_ = nullptr;
+ }
+ }
+
+ if (not MC_is_active() && not MC_record_replay_is_active()) {
+ ExecImpl** element = std::find(execs, execs + count, this);
+ int rank = (element != execs + count) ? element - execs : -1;
+ simcall_execution_waitany_for__set__result(simcall, rank);
+ }
+ }
+
+ switch (state_) {
+ case State::DONE:
+ /* do nothing, synchro done */
+ XBT_DEBUG("ExecImpl::finish(): execution successful");
+ break;
+
+ case State::FAILED:
+ XBT_DEBUG("ExecImpl::finish(): host '%s' failed", simcall->issuer_->get_host()->get_cname());
+ simcall->issuer_->context_->set_wannadie();
+ if (simcall->issuer_->get_host()->is_on())
+ simcall->issuer_->exception_ =
+ std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
+ /* else, the actor will be killed with no possibility to survive */
+ break;
+
+ case State::CANCELED:
+ XBT_DEBUG("ExecImpl::finish(): execution canceled");
+ simcall->issuer_->exception_ =
+ std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "Execution Canceled"));
+ break;
+
+ case State::TIMEOUT:
+ XBT_DEBUG("ExecImpl::finish(): execution timeouted");
+ simcall->issuer_->exception_ = std::make_exception_ptr(simgrid::TimeoutException(XBT_THROW_POINT, "Timeouted"));
+ break;
+
+ default:
+ xbt_die("Internal error in ExecImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
+ }
+
+ 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_->context_->set_wannadie();
+ }
+}
+
+ActivityImpl* ExecImpl::migrate(s4u::Host* to)
+{
if (not MC_is_active() && not MC_record_replay_is_active()) {
- simgrid::kernel::resource::Action* oldAction = this->surfAction_;
- simgrid::kernel::resource::Action* newAction = to->pimpl_cpu->execution_start(oldAction->getCost());
- newAction->setRemains(oldAction->getRemains());
- newAction->set_data(this);
- newAction->setSharingWeight(oldAction->getPriority());
+ resource::Action* old_action = this->surf_action_;
+ resource::Action* new_action = to->pimpl_cpu->execution_start(old_action->get_cost());
+ new_action->set_remains(old_action->get_remains());
+ new_action->set_activity(this);
+ new_action->set_sharing_penalty(old_action->get_sharing_penalty());
// 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->set_data(nullptr);
- oldAction->cancel();
- oldAction->unref();
- this->surfAction_ = newAction;
+ old_action->set_activity(nullptr);
+ old_action->cancel();
+ old_action->unref();
+ this->surf_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 activity
+} // namespace kernel
+} // namespace simgrid