1 /* Copyright (c) 2006-2021. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/Exception.hpp"
7 #include "simgrid/actor.h"
8 #include "simgrid/modelchecker.h"
9 #include "simgrid/s4u/Actor.hpp"
10 #include "simgrid/s4u/Exec.hpp"
11 #include "simgrid/s4u/Host.hpp"
12 #include "simgrid/s4u/VirtualMachine.hpp"
13 #include "src/include/mc/mc.h"
14 #include "src/kernel/EngineImpl.hpp"
15 #include "src/kernel/activity/ExecImpl.hpp"
16 #include "src/mc/mc_replay.hpp"
17 #include "src/surf/HostImpl.hpp"
22 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_actor, s4u, "S4U actors");
26 template class xbt::Extendable<s4u::Actor>;
30 xbt::signal<void(Actor&)> s4u::Actor::on_creation;
31 xbt::signal<void(Actor const&)> s4u::Actor::on_suspend;
32 xbt::signal<void(Actor const&)> s4u::Actor::on_resume;
33 xbt::signal<void(Actor const&)> s4u::Actor::on_sleep;
34 xbt::signal<void(Actor const&)> s4u::Actor::on_wake_up;
36 xbt::signal<void(Actor const&)> s4u::Actor::on_migration_start; // XBT_ATTRIB_DEPRECATED_v329
37 xbt::signal<void(Actor const&)> s4u::Actor::on_migration_end; // XBT_ATTRIB_DEPRECATED_v329
39 xbt::signal<void(Actor const&, Host const& previous_location)> s4u::Actor::on_host_change;
40 xbt::signal<void(Actor const&)> s4u::Actor::on_termination;
41 xbt::signal<void(Actor const&)> s4u::Actor::on_destruction;
43 // ***** Actor creation *****
46 const kernel::context::Context* self_context = kernel::context::Context::self();
47 if (self_context == nullptr)
50 return self_context->get_actor()->get_ciface();
53 ActorPtr Actor::init(const std::string& name, s4u::Host* host)
55 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
56 kernel::actor::ActorImpl* actor =
57 kernel::actor::simcall([self, &name, host] { return self->init(name, host).get(); });
58 return actor->get_iface();
61 /** Set a non-default stack size for this context (in Kb)
63 * This must be done before starting the actor, and it won't work with the thread factory. */
64 ActorPtr Actor::set_stacksize(unsigned stacksize)
66 pimpl_->set_stacksize(stacksize * 1024);
70 ActorPtr Actor::start(const std::function<void()>& code)
72 simgrid::kernel::actor::simcall([this, &code] { pimpl_->start(code); });
76 ActorPtr Actor::create(const std::string& name, s4u::Host* host, const std::function<void()>& code)
78 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
79 kernel::actor::ActorImpl* actor =
80 kernel::actor::simcall([self, &name, host, &code] { return self->init(name, host)->start(code); });
82 return actor->get_iface();
85 ActorPtr Actor::create(const std::string& name, s4u::Host* host, const std::string& function,
86 std::vector<std::string> args)
88 const simgrid::kernel::actor::ActorCodeFactory& factory =
89 simgrid::kernel::EngineImpl::get_instance()->get_function(function);
90 return create(name, host, factory(std::move(args)));
93 void intrusive_ptr_add_ref(const Actor* actor)
95 intrusive_ptr_add_ref(actor->pimpl_);
97 void intrusive_ptr_release(const Actor* actor)
99 intrusive_ptr_release(actor->pimpl_);
101 int Actor::get_refcount() const
103 return pimpl_->get_refcount();
106 // ***** Actor methods *****
108 void Actor::join() const
113 void Actor::join(double timeout) const
115 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
116 const kernel::actor::ActorImpl* target = pimpl_;
117 kernel::actor::simcall_blocking([issuer, target, timeout] {
118 if (target->finished_) {
119 // The joined process is already finished, just wake up the issuer right away
120 issuer->simcall_answer();
122 kernel::activity::ActivityImplPtr sync = issuer->join(target, timeout);
123 sync->register_simcall(&issuer->simcall_);
128 void Actor::set_auto_restart(bool autorestart)
130 kernel::actor::simcall([this, autorestart]() {
131 xbt_assert(autorestart && not pimpl_->has_to_auto_restart()); // FIXME: handle all cases
132 pimpl_->set_auto_restart(autorestart);
134 auto* arg = new kernel::actor::ProcessArg(pimpl_->get_host(), pimpl_);
135 XBT_DEBUG("Adding %s to the actors_at_boot_ list of Host %s", arg->name.c_str(), arg->host->get_cname());
136 pimpl_->get_host()->get_impl()->add_actor_at_boot(arg);
140 void Actor::on_exit(const std::function<void(bool /*failed*/)>& fun) const
142 kernel::actor::simcall([this, &fun] { pimpl_->on_exit->emplace_back(fun); });
145 void Actor::set_host(Host* new_host)
147 if (s4u::Actor::on_migration_start.get_slot_count() > 0) { // XBT_ATTRIB_DEPRECATED_v329
148 static bool already_warned = false;
149 if (not already_warned) {
150 XBT_INFO("Please use s4u::Actor::on_host_change instead of s4u::Actor::on_migration_start. This will be removed "
152 already_warned = true;
154 s4u::Actor::on_migration_start(*this);
157 const s4u::Host* previous_location = get_host();
159 kernel::actor::simcall([this, new_host]() {
160 for (auto const& activity : pimpl_->activities_) {
161 // FIXME: implement the migration of other kinds of activities
162 if (auto exec = boost::dynamic_pointer_cast<kernel::activity::ExecImpl>(activity))
163 exec->migrate(new_host);
165 this->pimpl_->set_host(new_host);
168 if (s4u::Actor::on_migration_end.get_slot_count() > 0) { // XBT_ATTRIB_DEPRECATED_v329
169 static bool already_warned = false;
170 if (not already_warned) {
171 XBT_INFO("Please use s4u::Actor::on_host_change instead of s4u::Actor::on_migration_end. This will be removed in "
173 already_warned = true;
175 s4u::Actor::on_migration_end(*this);
178 s4u::Actor::on_host_change(*this, *previous_location);
181 s4u::Host* Actor::get_host() const
183 return this->pimpl_->get_host();
186 void Actor::daemonize()
188 kernel::actor::simcall([this]() { pimpl_->daemonize(); });
191 bool Actor::is_daemon() const
193 return this->pimpl_->is_daemon();
196 const simgrid::xbt::string& Actor::get_name() const
198 return this->pimpl_->get_name();
201 const char* Actor::get_cname() const
203 return this->pimpl_->get_cname();
206 aid_t Actor::get_pid() const
208 return this->pimpl_->get_pid();
211 aid_t Actor::get_ppid() const
213 return this->pimpl_->get_ppid();
216 void Actor::suspend()
218 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
219 kernel::actor::ActorImpl* target = pimpl_;
220 s4u::Actor::on_suspend(*this);
221 kernel::actor::simcall_blocking([issuer, target]() {
223 if (target != issuer) {
224 /* If we are suspending ourselves, then just do not finish the simcall now */
225 issuer->simcall_answer();
232 kernel::actor::simcall([this] { pimpl_->resume(); });
233 s4u::Actor::on_resume(*this);
236 bool Actor::is_suspended() const
238 return pimpl_->is_suspended();
241 void Actor::set_kill_time(double kill_time)
243 kernel::actor::simcall([this, kill_time] { pimpl_->set_kill_time(kill_time); });
246 /** @brief Get the kill time of an actor(or 0 if unset). */
247 double Actor::get_kill_time() const
249 return pimpl_->get_kill_time();
254 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
255 kernel::actor::simcall([this, self] { self->kill(pimpl_); });
258 // ***** Static functions *****
260 ActorPtr Actor::by_pid(aid_t pid)
262 kernel::actor::ActorImpl* actor = kernel::actor::ActorImpl::by_pid(pid);
263 if (actor != nullptr)
264 return actor->get_iface();
269 void Actor::kill_all()
271 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
272 kernel::actor::simcall([self] { self->kill_all(); });
275 const std::unordered_map<std::string, std::string>* Actor::get_properties() const
277 return pimpl_->get_properties();
280 /** Retrieve the property value (or nullptr if not set) */
281 const char* Actor::get_property(const std::string& key) const
283 return pimpl_->get_property(key);
286 void Actor::set_property(const std::string& key, const std::string& value)
288 kernel::actor::simcall([this, &key, &value] { pimpl_->set_property(key, value); });
291 Actor* Actor::restart()
293 return kernel::actor::simcall([this]() { return pimpl_->restart(); });
296 // ***** this_actor *****
298 namespace this_actor {
300 /** Returns true if run from the kernel mode, and false if run from a real actor
302 * Everything that is run out of any actor (simulation setup before the engine is run,
303 * computing the model evolutions as a result to the actors' action, etc) is run in
304 * kernel mode, just as in any operating systems.
306 * In SimGrid, the actor in charge of doing the stuff in kernel mode is called Maestro,
307 * because it is the one scheduling when the others should move or wait.
311 return SIMIX_is_maestro();
314 void sleep_for(double duration)
316 xbt_assert(std::isfinite(duration), "duration is not finite!");
318 if (duration <= 0) /* that's a no-op */
321 if (duration < sg_surf_precision) {
322 static unsigned int warned = 0; // At most 20 such warnings
325 XBT_INFO("The parameter to sleep_for() is smaller than the SimGrid numerical accuracy (%g < %g). "
326 "Please refer to https://simgrid.org/doc/latest/Configuring_SimGrid.html#numerical-precision",
327 duration, sg_surf_precision);
329 XBT_VERB("(further warnings about the numerical accuracy of sleep_for() will be omitted).");
332 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
333 Actor::on_sleep(*issuer->get_ciface());
335 kernel::actor::simcall_blocking([issuer, duration]() {
336 if (MC_is_active() || MC_record_replay_is_active()) {
337 MC_process_clock_add(issuer, duration);
338 issuer->simcall_answer();
341 kernel::activity::ActivityImplPtr sync = issuer->sleep(duration);
342 sync->register_simcall(&issuer->simcall_);
345 Actor::on_wake_up(*issuer->get_ciface());
350 kernel::actor::simcall([] { /* do nothing*/ });
353 XBT_PUBLIC void sleep_until(double wakeup_time)
355 double now = SIMIX_get_clock();
356 if (wakeup_time > now)
357 sleep_for(wakeup_time - now);
360 void execute(double flops)
362 execute(flops, 1.0 /* priority */);
365 void execute(double flops, double priority)
367 exec_init(flops)->set_priority(priority)->vetoable_start()->wait();
370 void parallel_execute(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
371 const std::vector<double>& bytes_amounts)
373 exec_init(hosts, flops_amounts, bytes_amounts)->wait();
376 void parallel_execute(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
377 const std::vector<double>& bytes_amounts, double timeout) // XBT_ATTRIB_DEPRECATED_v329
379 exec_init(hosts, flops_amounts, bytes_amounts)->wait_for(timeout);
382 ExecPtr exec_init(double flops_amount)
384 return Exec::init()->set_flops_amount(flops_amount)->set_host(get_host());
387 ExecPtr exec_init(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
388 const std::vector<double>& bytes_amounts)
390 xbt_assert(hosts.size() > 0, "Your parallel executions must span over at least one host.");
391 xbt_assert(hosts.size() == flops_amounts.size() || flops_amounts.empty(),
392 "Host count (%zu) does not match flops_amount count (%zu).", hosts.size(), flops_amounts.size());
393 xbt_assert(hosts.size() * hosts.size() == bytes_amounts.size() || bytes_amounts.empty(),
394 "bytes_amounts must be a matrix of size host_count * host_count (%zu*%zu), but it's of size %zu.",
395 hosts.size(), hosts.size(), bytes_amounts.size());
396 /* Check that we are not mixing VMs and PMs in the parallel task */
397 bool is_a_vm = (nullptr != dynamic_cast<VirtualMachine*>(hosts.front()));
398 xbt_assert(std::all_of(hosts.begin(), hosts.end(),
399 [is_a_vm](s4u::Host* elm) {
400 bool tmp_is_a_vm = (nullptr != dynamic_cast<VirtualMachine*>(elm));
401 return is_a_vm == tmp_is_a_vm;
403 "parallel_execute: mixing VMs and PMs is not supported (yet).");
404 /* checking for infinite values */
405 xbt_assert(std::all_of(flops_amounts.begin(), flops_amounts.end(), [](double elm) { return std::isfinite(elm); }),
406 "flops_amounts comprises infinite values!");
407 xbt_assert(std::all_of(bytes_amounts.begin(), bytes_amounts.end(), [](double elm) { return std::isfinite(elm); }),
408 "flops_amounts comprises infinite values!");
410 return Exec::init()->set_flops_amounts(flops_amounts)->set_bytes_amounts(bytes_amounts)->set_hosts(hosts);
413 ExecPtr exec_async(double flops)
415 ExecPtr res = exec_init(flops);
416 res->vetoable_start();
422 return simgrid::kernel::actor::ActorImpl::self()->get_pid();
427 return simgrid::kernel::actor::ActorImpl::self()->get_ppid();
430 std::string get_name()
432 return simgrid::kernel::actor::ActorImpl::self()->get_name();
435 const char* get_cname()
437 return simgrid::kernel::actor::ActorImpl::self()->get_cname();
442 return simgrid::kernel::actor::ActorImpl::self()->get_host();
447 kernel::actor::ActorImpl* self = simgrid::kernel::actor::ActorImpl::self();
448 s4u::Actor::on_suspend(*self->get_ciface());
449 kernel::actor::simcall_blocking([self] { self->suspend(); });
454 kernel::actor::ActorImpl* self = simgrid::kernel::actor::ActorImpl::self();
455 simgrid::kernel::actor::simcall([self] { self->exit(); });
458 void on_exit(const std::function<void(bool)>& fun)
460 simgrid::kernel::actor::ActorImpl::self()->get_iface()->on_exit(fun);
463 /** @brief Moves the current actor to another host
465 * @see simgrid::s4u::Actor::migrate() for more information
467 void set_host(Host* new_host)
469 simgrid::kernel::actor::ActorImpl::self()->get_iface()->set_host(new_host);
471 void migrate(Host* new_host) // XBT_ATTRIB_DEPRECATED_v329
476 } // namespace this_actor
478 } // namespace simgrid
480 /* **************************** Public C interface *************************** */
481 size_t sg_actor_count()
483 return simgrid::s4u::Engine::get_instance()->get_actor_count();
486 sg_actor_t* sg_actor_list()
488 const simgrid::s4u::Engine* e = simgrid::s4u::Engine::get_instance();
489 size_t actor_count = e->get_actor_count();
490 xbt_assert(actor_count > 0, "There is no actor!");
491 std::vector<simgrid::s4u::ActorPtr> actors = e->get_all_actors();
493 sg_actor_t* res = xbt_new(sg_actor_t, actors.size());
494 for (size_t i = 0; i < actor_count; i++)
495 res[i] = actors[i].get();
499 sg_actor_t sg_actor_init(const char* name, sg_host_t host)
501 return simgrid::s4u::Actor::init(name, host).get();
504 void sg_actor_start_(sg_actor_t actor, xbt_main_func_t code, int argc, const char* const* argv)
506 simgrid::kernel::actor::ActorCode function;
508 function = simgrid::xbt::wrap_main(code, argc, argv);
509 actor->start(function);
512 sg_actor_t sg_actor_create_(const char* name, sg_host_t host, xbt_main_func_t code, int argc, const char* const* argv)
514 simgrid::kernel::actor::ActorCode function = simgrid::xbt::wrap_main(code, argc, argv);
515 return simgrid::s4u::Actor::init(name, host)->start(function).get();
518 void sg_actor_set_stacksize(sg_actor_t actor, unsigned size)
520 actor->set_stacksize(size);
525 simgrid::s4u::this_actor::exit();
529 * @brief Returns the process ID of @a actor.
531 * This function checks whether @a actor is a valid pointer and return its PID (or 0 in case of problem).
534 aid_t sg_actor_get_pid(const_sg_actor_t actor)
536 /* Do not raise an exception here: this function is called by the logs
537 * and the exceptions, so it would be called back again and again */
538 if (actor == nullptr || actor->get_impl() == nullptr)
540 return actor->get_pid();
544 * @brief Returns the process ID of the parent of @a actor.
546 * This function checks whether @a actor is a valid pointer and return its parent's PID.
547 * Returns -1 if the actor has not been created by any other actor.
549 aid_t sg_actor_get_ppid(const_sg_actor_t actor)
551 return actor->get_ppid();
555 * @brief Return a #sg_actor_t given its PID.
557 * This function search in the list of all the created sg_actor_t for a sg_actor_t whose PID is equal to @a PID.
558 * If none is found, @c nullptr is returned.
559 Note that the PID are unique in the whole simulation, not only on a given host.
561 sg_actor_t sg_actor_by_pid(aid_t pid)
563 return simgrid::s4u::Actor::by_pid(pid).get();
566 aid_t sg_actor_get_PID(const_sg_actor_t actor) // XBT_ATTRIB_DEPRECATED_v331
568 return sg_actor_get_pid(actor);
571 aid_t sg_actor_get_PPID(const_sg_actor_t actor) // XBT_ATTRIB_DEPRECATED_v331
573 return sg_actor_get_ppid(actor);
576 sg_actor_t sg_actor_by_PID(aid_t pid) // XBT_ATTRIB_DEPRECATED_v331
578 return sg_actor_by_pid(pid);
581 /** @brief Return the name of an actor. */
582 const char* sg_actor_get_name(const_sg_actor_t actor)
584 return actor->get_cname();
587 sg_host_t sg_actor_get_host(const_sg_actor_t actor)
589 return actor->get_host();
593 * @brief Returns the value of a given actor property
595 * @param actor an actor
596 * @param name a property name
597 * @return value of a property (or nullptr if the property is not set)
599 const char* sg_actor_get_property_value(const_sg_actor_t actor, const char* name)
601 return actor->get_property(name);
605 * @brief Return the list of properties
607 * This function returns all the parameters associated with an actor
609 xbt_dict_t sg_actor_get_properties(const_sg_actor_t actor)
611 xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
612 xbt_dict_t as_dict = xbt_dict_new_homogeneous(xbt_free_f);
613 const std::unordered_map<std::string, std::string>* props = actor->get_properties();
614 if (props == nullptr)
616 for (auto const& kv : *props) {
617 xbt_dict_set(as_dict, kv.first.c_str(), xbt_strdup(kv.second.c_str()));
623 * @brief Suspend the actor.
625 * This function suspends the actor by suspending the task on which it was waiting for the completion.
627 void sg_actor_suspend(sg_actor_t actor)
629 xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
634 * @brief Resume a suspended actor.
636 * This function resumes a suspended actor by resuming the task on which it was waiting for the completion.
638 void sg_actor_resume(sg_actor_t actor)
640 xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
645 * @brief Returns true if the actor is suspended .
647 * This checks whether an actor is suspended or not by inspecting the task on which it was waiting for the completion.
649 int sg_actor_is_suspended(const_sg_actor_t actor)
651 return actor->is_suspended();
654 /** @brief Restarts an actor from the beginning. */
655 sg_actor_t sg_actor_restart(sg_actor_t actor)
657 return actor->restart();
661 * @brief Sets the "auto-restart" flag of the actor.
662 * If the flag is set to 1, the actor will be automatically restarted when its host comes back up.
664 void sg_actor_set_auto_restart(sg_actor_t actor, int auto_restart)
666 actor->set_auto_restart(auto_restart);
669 /** @brief This actor will be terminated automatically when the last non-daemon actor finishes */
670 void sg_actor_daemonize(sg_actor_t actor)
675 /** Returns whether or not this actor has been daemonized or not */
676 int sg_actor_is_daemon(const_sg_actor_t actor)
678 return actor->is_daemon();
682 * @brief Migrates an actor to another location.
684 * This function changes the value of the #sg_host_t on which @a actor is running.
686 void sg_actor_set_host(sg_actor_t actor, sg_host_t host)
688 actor->set_host(host);
690 void sg_actor_migrate(sg_actor_t process, sg_host_t host) // XBT_ATTRIB_DEPRECATED_v329
692 process->set_host(host);
696 * @brief Wait for the completion of a #sg_actor_t.
698 * @param actor the actor to wait for
699 * @param timeout wait until the actor is over, or the timeout expires
701 void sg_actor_join(const_sg_actor_t actor, double timeout)
703 actor->join(timeout);
706 void sg_actor_kill(sg_actor_t actor)
711 void sg_actor_kill_all()
713 simgrid::s4u::Actor::kill_all();
717 * @brief Set the kill time of an actor.
719 * @param actor an actor
720 * @param kill_time the time when the actor is killed.
722 void sg_actor_set_kill_time(sg_actor_t actor, double kill_time)
724 actor->set_kill_time(kill_time);
727 /** Yield the current actor; let the other actors execute first */
728 void sg_actor_yield()
730 simgrid::s4u::this_actor::yield();
733 void sg_actor_sleep_for(double duration)
735 simgrid::s4u::this_actor::sleep_for(duration);
738 void sg_actor_sleep_until(double wakeup_time)
740 simgrid::s4u::this_actor::sleep_until(wakeup_time);
743 sg_actor_t sg_actor_attach(const char* name, void* data, sg_host_t host, xbt_dict_t properties)
745 xbt_assert(host != nullptr, "Invalid parameters: host and code params must not be nullptr");
746 std::unordered_map<std::string, std::string> props;
747 xbt_dict_cursor_t cursor = nullptr;
750 xbt_dict_foreach (properties, cursor, key, value)
752 xbt_dict_free(&properties);
754 /* Let's create the process: SIMIX may decide to start it right now, even before returning the flow control to us */
755 smx_actor_t actor = nullptr;
757 actor = simgrid::kernel::actor::ActorImpl::attach(name, data, host).get();
758 actor->set_properties(props);
759 } catch (simgrid::HostFailureException const&) {
760 xbt_die("Could not attach");
763 simgrid::s4u::this_actor::yield();
764 return actor->get_ciface();
767 void sg_actor_detach()
769 simgrid::kernel::actor::ActorImpl::detach();
772 aid_t sg_actor_self_get_pid()
774 return simgrid::s4u::this_actor::get_pid();
777 aid_t sg_actor_self_get_ppid()
779 return simgrid::s4u::this_actor::get_ppid();
782 const char* sg_actor_self_get_name()
784 return simgrid::s4u::this_actor::get_cname();
787 void* sg_actor_self_get_data()
789 return simgrid::s4u::Actor::self()->get_data();
792 void sg_actor_self_set_data(void* userdata)
794 simgrid::s4u::Actor::self()->set_data(userdata);
797 void* sg_actor_self_data() // XBT_ATTRIB_DEPRECATED_v330
799 return sg_actor_self_get_data();
802 void sg_actor_self_data_set(void* userdata) // XBT_ATTRIB_DEPRECATED_v330
804 sg_actor_self_set_data(userdata);
807 sg_actor_t sg_actor_self()
809 return simgrid::s4u::Actor::self();
812 void sg_actor_self_execute(double flops) // XBT_ATTRIB_DEPRECATED_v330
814 simgrid::s4u::this_actor::execute(flops);
817 void sg_actor_execute(double flops)
819 simgrid::s4u::this_actor::execute(flops);
821 void sg_actor_execute_with_priority(double flops, double priority)
823 simgrid::s4u::this_actor::exec_init(flops)->set_priority(priority)->wait();
826 void sg_actor_parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount)
828 std::vector<simgrid::s4u::Host*> hosts(host_list, host_list + host_nb);
829 std::vector<double> flops;
830 std::vector<double> bytes;
831 if (flops_amount != nullptr)
832 flops = std::vector<double>(flops_amount, flops_amount + host_nb);
833 if (bytes_amount != nullptr)
834 bytes = std::vector<double>(bytes_amount, bytes_amount + host_nb * host_nb);
836 simgrid::s4u::this_actor::parallel_execute(hosts, flops, bytes);
839 /** @brief Take an extra reference on that actor to prevent it to be garbage-collected */
840 void sg_actor_ref(const_sg_actor_t actor)
842 intrusive_ptr_add_ref(actor);
844 /** @brief Release a reference on that actor so that it can get be garbage-collected */
845 void sg_actor_unref(const_sg_actor_t actor)
847 intrusive_ptr_release(actor);
850 /** @brief Return the user data of a #sg_actor_t */
851 void* sg_actor_get_data(const_sg_actor_t actor)
853 return actor->get_data();
856 /** @brief Set the user data of a #sg_actor_t */
857 void sg_actor_set_data(sg_actor_t actor, void* userdata)
859 actor->set_data(userdata);
862 void* sg_actor_data(const_sg_actor_t actor) // XBT_ATTRIB_DEPRECATED_v330
864 return sg_actor_get_data(actor);
867 void sg_actor_data_set(sg_actor_t actor, void* userdata) // XBT_ATTRIB_DEPRECATED_v330
869 sg_actor_set_data(actor, userdata);
872 /** @brief Add a function to the list of "on_exit" functions for the current process.
873 * The on_exit functions are the functions executed when your process is killed.
874 * You should use them to free the data used by your process.
876 void sg_actor_on_exit(void_f_int_pvoid_t fun, void* data)
878 simgrid::s4u::this_actor::on_exit([fun, data](bool failed) { fun(failed ? 1 /*FAILURE*/ : 0 /*SUCCESS*/, data); });
881 sg_exec_t sg_actor_exec_init(double computation_amount)
883 simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_init(computation_amount);
888 sg_exec_t sg_actor_parallel_exec_init(int host_nb, const sg_host_t* host_list, double* flops_amount,
889 double* bytes_amount)
891 std::vector<simgrid::s4u::Host*> hosts(host_list, host_list + host_nb);
892 std::vector<double> flops;
893 std::vector<double> bytes;
894 if (flops_amount != nullptr)
895 flops = std::vector<double>(flops_amount, flops_amount + host_nb);
896 if (bytes_amount != nullptr)
897 bytes = std::vector<double>(bytes_amount, bytes_amount + host_nb * host_nb);
899 simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_init(hosts, flops, bytes);
904 sg_exec_t sg_actor_exec_async(double computation_amount)
906 simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_async(computation_amount);