1 /* Copyright (c) 2006-2023. 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/Engine.hpp>
11 #include <simgrid/s4u/Exec.hpp>
12 #include <simgrid/s4u/VirtualMachine.hpp>
14 #include "src/kernel/EngineImpl.hpp"
15 #include "src/kernel/actor/ActorImpl.hpp"
16 #include "src/kernel/resource/HostImpl.hpp"
17 #include "src/mc/mc.h"
18 #include "src/mc/mc_replay.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;
35 xbt::signal<void(Actor const&, Host const& previous_location)> s4u::Actor::on_host_change;
36 xbt::signal<void(Actor const&)> s4u::Actor::on_termination;
37 xbt::signal<void(Actor const&)> s4u::Actor::on_destruction;
39 // ***** Actor creation *****
42 const kernel::context::Context* self_context = kernel::context::Context::self();
43 if (self_context == nullptr)
46 return self_context->get_actor()->get_ciface();
49 ActorPtr Actor::init(const std::string& name, s4u::Host* host)
51 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
52 kernel::actor::ActorImpl* actor =
53 kernel::actor::simcall_answered([self, &name, host] { return self->init(name, host).get(); });
54 return actor->get_iface();
57 /** Set a non-default stack size for this context (in Kb)
59 * This must be done before starting the actor, and it won't work with the thread factory. */
60 ActorPtr Actor::set_stacksize(unsigned stacksize)
62 pimpl_->set_stacksize(stacksize * 1024);
66 ActorPtr Actor::start(const std::function<void()>& code)
68 simgrid::kernel::actor::simcall_answered([this, &code] { pimpl_->start(code); });
72 ActorPtr Actor::create(const std::string& name, s4u::Host* host, const std::function<void()>& code)
74 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
75 kernel::actor::ActorImpl* actor =
76 kernel::actor::simcall_answered([self, &name, host, &code] { return self->init(name, host)->start(code); });
78 return actor->get_iface();
81 ActorPtr Actor::create(const std::string& name, s4u::Host* host, const std::string& function,
82 std::vector<std::string> args)
84 const simgrid::kernel::actor::ActorCodeFactory& factory =
85 simgrid::kernel::EngineImpl::get_instance()->get_function(function);
86 return create(name, host, factory(std::move(args)));
89 void intrusive_ptr_add_ref(const Actor* actor)
91 intrusive_ptr_add_ref(actor->pimpl_);
93 void intrusive_ptr_release(const Actor* actor)
95 intrusive_ptr_release(actor->pimpl_);
97 int Actor::get_refcount() const
99 return pimpl_->get_refcount();
102 // ***** Actor methods *****
104 void Actor::join() const
109 void Actor::join(double timeout) const
111 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
112 const kernel::actor::ActorImpl* target = pimpl_;
113 kernel::actor::ActorJoinSimcall observer{issuer, get_impl(), timeout};
115 kernel::actor::simcall_blocking(
116 [issuer, target, timeout] {
117 if (target->wannadie()) {
118 // The joined actor is already finished, just wake up the issuer right away
119 issuer->simcall_answer();
121 kernel::activity::ActivityImplPtr sync = issuer->join(target, timeout);
122 sync->register_simcall(&issuer->simcall_);
128 Actor* Actor::set_auto_restart(bool autorestart)
130 if (autorestart == pimpl_->has_to_auto_restart()) // not changed
133 kernel::actor::simcall_answered([this, autorestart]() {
134 xbt_assert(autorestart, "Asking an actor to stop being autorestart is not implemented yet. Ask us if you need it.");
135 pimpl_->set_auto_restart(autorestart);
137 auto* arg = new kernel::actor::ProcessArg(pimpl_->get_host(), pimpl_);
138 XBT_DEBUG("Adding %s to the actors_at_boot_ list of Host %s", arg->name.c_str(), arg->host->get_cname());
139 pimpl_->get_host()->get_impl()->add_actor_at_boot(arg);
143 int Actor::get_restart_count() const
145 return pimpl_->get_restart_count();
148 void Actor::on_exit(const std::function<void(bool /*failed*/)>& fun) const
150 kernel::actor::simcall_answered([this, &fun] { pimpl_->on_exit->emplace_back(fun); });
153 void Actor::set_host(Host* new_host)
155 const s4u::Host* previous_location = get_host();
157 kernel::actor::simcall_answered([this, new_host]() {
158 for (auto const& activity : pimpl_->activities_) {
159 // FIXME: implement the migration of other kinds of activities
160 if (auto exec = boost::dynamic_pointer_cast<kernel::activity::ExecImpl>(activity))
161 exec->migrate(new_host);
163 this->pimpl_->set_host(new_host);
166 s4u::Actor::on_host_change(*this, *previous_location);
167 s4u::Actor::on_this_host_change(*this, *previous_location);
170 s4u::Host* Actor::get_host() const
172 return this->pimpl_->get_host();
175 Actor* Actor::daemonize()
177 kernel::actor::simcall_answered([this]() { pimpl_->daemonize(); });
181 bool Actor::is_daemon() const
183 return this->pimpl_->is_daemon();
186 bool Actor::is_maestro()
188 const auto* self = kernel::actor::ActorImpl::self();
189 return self == nullptr || kernel::EngineImpl::get_instance()->is_maestro(self);
192 const std::string& Actor::get_name() const
194 return this->pimpl_->get_name();
197 const char* Actor::get_cname() const
199 return this->pimpl_->get_cname();
202 aid_t Actor::get_pid() const
204 return this->pimpl_->get_pid();
207 aid_t Actor::get_ppid() const
209 return this->pimpl_->get_ppid();
212 void Actor::suspend()
214 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
215 kernel::actor::ActorImpl* target = pimpl_;
216 s4u::Actor::on_suspend(*this);
217 s4u::Actor::on_this_suspend(*this);
218 kernel::actor::simcall_blocking([issuer, target]() {
220 if (target != issuer) {
221 /* If we are suspending ourselves, then just do not finish the simcall now */
222 issuer->simcall_answer();
229 kernel::actor::simcall_answered([this] { pimpl_->resume(); });
230 s4u::Actor::on_resume(*this);
231 s4u::Actor::on_this_resume(*this);
234 bool Actor::is_suspended() const
236 return pimpl_->is_suspended();
239 void Actor::set_kill_time(double kill_time)
241 kernel::actor::simcall_answered([this, kill_time] { pimpl_->set_kill_time(kill_time); });
244 /** @brief Get the kill time of an actor(or 0 if unset). */
245 double Actor::get_kill_time() const
247 return pimpl_->get_kill_time();
252 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
253 kernel::actor::simcall_answered([this, self] { self->kill(pimpl_); });
256 // ***** Static functions *****
258 ActorPtr Actor::by_pid(aid_t pid)
260 kernel::actor::ActorImpl* actor = kernel::EngineImpl::get_instance()->get_actor_by_pid(pid);
261 if (actor != nullptr)
262 return actor->get_iface();
267 void Actor::kill_all()
269 const kernel::actor::ActorImpl* self = kernel::actor::ActorImpl::self();
270 kernel::actor::simcall_answered([self] { self->kill_all(); });
273 const std::unordered_map<std::string, std::string>* Actor::get_properties() const
275 return pimpl_->get_properties();
278 /** Retrieve the property value (or nullptr if not set) */
279 const char* Actor::get_property(const std::string& key) const
281 return pimpl_->get_property(key);
284 void Actor::set_property(const std::string& key, const std::string& value)
286 kernel::actor::simcall_answered([this, &key, &value] { pimpl_->set_property(key, value); });
289 Actor* Actor::restart()
291 return kernel::actor::simcall_answered([this]() { return pimpl_->restart(); });
294 // ***** this_actor *****
296 namespace this_actor {
298 /** Returns true if run from the kernel mode, and false if run from a real actor
300 * Everything that is run out of any actor (simulation setup before the engine is run,
301 * computing the model evolutions as a result to the actors' action, etc) is run in
302 * kernel mode, just as in any operating systems.
304 * In SimGrid, the actor in charge of doing the stuff in kernel mode is called Maestro,
305 * because it is the one scheduling when the others should move or wait.
309 return Actor::is_maestro();
312 void sleep_for(double duration)
314 xbt_assert(std::isfinite(duration), "duration is not finite!");
316 if (duration <= 0) /* that's a no-op */
319 if (duration < sg_precision_timing) {
320 static unsigned int warned = 0; // At most 20 such warnings
323 XBT_INFO("The parameter to sleep_for() is smaller than the SimGrid numerical accuracy (%g < %g). "
324 "Please refer to https://simgrid.org/doc/latest/Configuring_SimGrid.html#numerical-precision",
325 duration, sg_precision_timing);
327 XBT_VERB("(further warnings about the numerical accuracy of sleep_for() will be omitted).");
330 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
331 kernel::actor::ActorSleepSimcall observer(issuer);
333 Actor::on_sleep(*issuer->get_ciface());
334 issuer->get_ciface()->on_this_sleep(*issuer->get_ciface());
336 kernel::actor::simcall_blocking(
337 [issuer, duration]() {
338 if (MC_is_active() || MC_record_replay_is_active()) {
339 // MC_process_clock_add(issuer, duration); // BUG: Makes the exploration loop
340 issuer->simcall_answer();
342 kernel::activity::ActivityImplPtr sync = issuer->sleep(duration);
343 sync->register_simcall(&issuer->simcall_);
348 Actor::on_wake_up(*issuer->get_ciface());
349 issuer->get_ciface()->on_this_wake_up(*issuer->get_ciface());
354 kernel::actor::simcall_answered([] { /* do nothing*/ });
357 XBT_PUBLIC void sleep_until(double wakeup_time)
359 double now = s4u::Engine::get_clock();
360 if (wakeup_time > now)
361 sleep_for(wakeup_time - now);
364 void execute(double flops)
366 execute(flops, 1.0 /* priority */);
369 void execute(double flops, double priority)
371 exec_init(flops)->set_priority(priority)->start()->wait();
374 void parallel_execute(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
375 const std::vector<double>& bytes_amounts)
377 exec_init(hosts, flops_amounts, bytes_amounts)->wait();
380 void thread_execute(s4u::Host* host, double flops_amount, int thread_count)
382 Exec::init()->set_flops_amount(flops_amount)->set_host(host)->set_thread_count(thread_count)->wait();
385 ExecPtr exec_init(double flops_amount)
387 return Exec::init()->set_flops_amount(flops_amount)->set_host(get_host());
390 ExecPtr exec_init(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
391 const std::vector<double>& bytes_amounts)
393 xbt_assert(not hosts.empty(), "Your parallel executions must span over at least one host.");
394 xbt_assert(hosts.size() == flops_amounts.size() || flops_amounts.empty(),
395 "Host count (%zu) does not match flops_amount count (%zu).", hosts.size(), flops_amounts.size());
396 xbt_assert(hosts.size() * hosts.size() == bytes_amounts.size() || bytes_amounts.empty(),
397 "bytes_amounts must be a matrix of size host_count * host_count (%zu*%zu), but it's of size %zu.",
398 hosts.size(), hosts.size(), bytes_amounts.size());
399 /* Check that we are not mixing VMs and PMs in the parallel task */
400 bool is_a_vm = (nullptr != dynamic_cast<VirtualMachine*>(hosts.front()));
401 xbt_assert(std::all_of(hosts.begin(), hosts.end(),
402 [is_a_vm](s4u::Host* elm) {
403 bool tmp_is_a_vm = (nullptr != dynamic_cast<VirtualMachine*>(elm));
404 return is_a_vm == tmp_is_a_vm;
406 "parallel_execute: mixing VMs and PMs is not supported (yet).");
407 /* checking for infinite values */
408 xbt_assert(std::all_of(flops_amounts.begin(), flops_amounts.end(), [](double elm) { return std::isfinite(elm); }),
409 "flops_amounts comprises infinite values!");
410 xbt_assert(std::all_of(bytes_amounts.begin(), bytes_amounts.end(), [](double elm) { return std::isfinite(elm); }),
411 "flops_amounts comprises infinite values!");
413 return Exec::init()->set_flops_amounts(flops_amounts)->set_bytes_amounts(bytes_amounts)->set_hosts(hosts);
416 ExecPtr exec_async(double flops)
418 ExecPtr res = exec_init(flops);
425 const auto* self = simgrid::kernel::actor::ActorImpl::self();
426 return self ? self->get_pid() : 0;
431 return simgrid::kernel::actor::ActorImpl::self()->get_ppid();
434 std::string get_name()
436 return simgrid::kernel::actor::ActorImpl::self()->get_name();
439 const char* get_cname()
441 const auto* self = simgrid::kernel::actor::ActorImpl::self();
442 return self ? self->get_cname() : nullptr;
447 return simgrid::kernel::actor::ActorImpl::self()->get_host();
452 kernel::actor::ActorImpl* self = simgrid::kernel::actor::ActorImpl::self();
453 s4u::Actor::on_suspend(*self->get_ciface());
454 self->get_ciface()->on_this_suspend(*self->get_ciface());
455 kernel::actor::simcall_blocking([self] { self->suspend(); });
460 kernel::actor::ActorImpl* self = simgrid::kernel::actor::ActorImpl::self();
461 simgrid::kernel::actor::simcall_answered([self] { self->exit(); });
465 void on_exit(const std::function<void(bool)>& fun)
467 simgrid::kernel::actor::ActorImpl::self()->get_iface()->on_exit(fun);
470 /** @brief Moves the current actor to another host
472 * @see simgrid::s4u::Actor::migrate() for more information
474 void set_host(Host* new_host)
476 simgrid::kernel::actor::ActorImpl::self()->get_iface()->set_host(new_host);
479 } // namespace this_actor
481 } // namespace simgrid
483 /* **************************** Public C interface *************************** */
484 size_t sg_actor_count()
486 return simgrid::s4u::Engine::get_instance()->get_actor_count();
489 sg_actor_t* sg_actor_list()
491 const simgrid::s4u::Engine* e = simgrid::s4u::Engine::get_instance();
492 size_t actor_count = e->get_actor_count();
493 xbt_assert(actor_count > 0, "There is no actor!");
494 std::vector<simgrid::s4u::ActorPtr> actors = e->get_all_actors();
496 auto* res = xbt_new(sg_actor_t, actors.size());
497 for (size_t i = 0; i < actor_count; i++)
498 res[i] = actors[i].get();
502 sg_actor_t sg_actor_init(const char* name, sg_host_t host)
504 return simgrid::s4u::Actor::init(name, host).get();
507 void sg_actor_start_(sg_actor_t actor, xbt_main_func_t code, int argc, const char* const* argv)
509 simgrid::kernel::actor::ActorCode function;
511 function = simgrid::xbt::wrap_main(code, argc, argv);
512 actor->start(function);
515 sg_actor_t sg_actor_create_(const char* name, sg_host_t host, xbt_main_func_t code, int argc, const char* const* argv)
517 simgrid::kernel::actor::ActorCode function = simgrid::xbt::wrap_main(code, argc, argv);
518 return simgrid::s4u::Actor::init(name, host)->start(function).get();
521 void sg_actor_set_stacksize(sg_actor_t actor, unsigned size)
523 actor->set_stacksize(size);
528 simgrid::s4u::this_actor::exit();
532 * @brief Returns the process ID of @a actor.
534 * This function checks whether @a actor is a valid pointer and return its PID (or 0 in case of problem).
537 aid_t sg_actor_get_pid(const_sg_actor_t actor)
539 /* Do not raise an exception here: this function is called by the logs
540 * and the exceptions, so it would be called back again and again */
541 if (actor == nullptr || actor->get_impl() == nullptr)
543 return actor->get_pid();
547 * @brief Returns the process ID of the parent of @a actor.
549 * This function checks whether @a actor is a valid pointer and return its parent's PID.
550 * Returns -1 if the actor has not been created by any other actor.
552 aid_t sg_actor_get_ppid(const_sg_actor_t actor)
554 return actor->get_ppid();
558 * @brief Return a #sg_actor_t given its PID.
560 * 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.
561 * If none is found, @c nullptr is returned.
562 Note that the PID are unique in the whole simulation, not only on a given host.
564 sg_actor_t sg_actor_by_pid(aid_t pid)
566 return simgrid::s4u::Actor::by_pid(pid).get();
569 /** @brief Return the name of an actor. */
570 const char* sg_actor_get_name(const_sg_actor_t actor)
572 return actor->get_cname();
575 sg_host_t sg_actor_get_host(const_sg_actor_t actor)
577 return actor->get_host();
581 * @brief Returns the value of a given actor property
583 * @param actor an actor
584 * @param name a property name
585 * @return value of a property (or nullptr if the property is not set)
587 const char* sg_actor_get_property_value(const_sg_actor_t actor, const char* name)
589 return actor->get_property(name);
593 * @brief Return the list of properties
595 * This function returns all the parameters associated with an actor
597 xbt_dict_t sg_actor_get_properties(const_sg_actor_t actor)
599 xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
600 xbt_dict_t as_dict = xbt_dict_new_homogeneous(xbt_free_f);
601 const std::unordered_map<std::string, std::string>* props = actor->get_properties();
602 if (props == nullptr)
604 for (auto const& [key, value] : *props) {
605 xbt_dict_set(as_dict, key.c_str(), xbt_strdup(value.c_str()));
611 * @brief Suspend the actor.
613 * This function suspends the actor by suspending the task on which it was waiting for the completion.
615 void sg_actor_suspend(sg_actor_t actor)
617 xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
622 * @brief Resume a suspended actor.
624 * This function resumes a suspended actor by resuming the task on which it was waiting for the completion.
626 void sg_actor_resume(sg_actor_t actor)
628 xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
633 * @brief Returns true if the actor is suspended .
635 * This checks whether an actor is suspended or not by inspecting the task on which it was waiting for the completion.
637 int sg_actor_is_suspended(const_sg_actor_t actor)
639 return actor->is_suspended();
642 /** @brief Restarts an actor from the beginning. */
643 sg_actor_t sg_actor_restart(sg_actor_t actor)
645 return actor->restart();
649 * @brief Sets the "auto-restart" flag of the actor.
650 * If the flag is set to 1, the actor will be automatically restarted when its host comes back up.
652 void sg_actor_set_auto_restart(sg_actor_t actor, int auto_restart)
654 actor->set_auto_restart(auto_restart);
657 /** @brief This actor will be terminated automatically when the last non-daemon actor finishes */
658 void sg_actor_daemonize(sg_actor_t actor)
663 /** Returns whether or not this actor has been daemonized or not */
664 int sg_actor_is_daemon(const_sg_actor_t actor)
666 return actor->is_daemon();
670 * @brief Migrates an actor to another location.
672 * This function changes the value of the #sg_host_t on which @a actor is running.
674 void sg_actor_set_host(sg_actor_t actor, sg_host_t host)
676 actor->set_host(host);
680 * @brief Wait for the completion of a #sg_actor_t.
682 * @param actor the actor to wait for
683 * @param timeout wait until the actor is over, or the timeout expires
685 void sg_actor_join(const_sg_actor_t actor, double timeout)
687 actor->join(timeout);
690 void sg_actor_kill(sg_actor_t actor)
695 void sg_actor_kill_all()
697 simgrid::s4u::Actor::kill_all();
701 * @brief Set the kill time of an actor.
703 * @param actor an actor
704 * @param kill_time the time when the actor is killed.
706 void sg_actor_set_kill_time(sg_actor_t actor, double kill_time)
708 actor->set_kill_time(kill_time);
711 /** Yield the current actor; let the other actors execute first */
712 void sg_actor_yield()
714 simgrid::s4u::this_actor::yield();
717 void sg_actor_sleep_for(double duration)
719 simgrid::s4u::this_actor::sleep_for(duration);
722 void sg_actor_sleep_until(double wakeup_time)
724 simgrid::s4u::this_actor::sleep_until(wakeup_time);
727 sg_actor_t sg_actor_attach(const char* name, void* data, sg_host_t host, xbt_dict_t properties)
729 xbt_assert(host != nullptr, "Invalid parameters: host and code params must not be nullptr");
730 std::unordered_map<std::string, std::string> props;
731 xbt_dict_cursor_t cursor = nullptr;
734 xbt_dict_foreach (properties, cursor, key, value)
736 xbt_dict_free(&properties);
738 /* Let's create the actor: SIMIX may decide to start it right now, even before returning the flow control to us */
739 simgrid::kernel::actor::ActorImpl* actor = nullptr;
741 actor = simgrid::kernel::actor::ActorImpl::attach(name, data, host).get();
742 actor->set_properties(props);
743 } catch (simgrid::HostFailureException const&) {
744 xbt_die("Could not attach");
747 simgrid::s4u::this_actor::yield();
748 return actor->get_ciface();
751 void sg_actor_detach()
753 simgrid::kernel::actor::ActorImpl::detach();
756 aid_t sg_actor_self_get_pid()
758 return simgrid::s4u::this_actor::get_pid();
761 aid_t sg_actor_self_get_ppid()
763 return simgrid::s4u::this_actor::get_ppid();
766 const char* sg_actor_self_get_name()
768 if (simgrid::s4u::Actor::is_maestro())
770 return simgrid::s4u::this_actor::get_cname();
773 void* sg_actor_self_get_data()
775 return simgrid::s4u::Actor::self()->get_data<void>();
778 void sg_actor_self_set_data(void* userdata)
780 simgrid::s4u::Actor::self()->set_data(userdata);
783 sg_actor_t sg_actor_self()
785 return simgrid::s4u::Actor::self();
788 void sg_actor_execute(double flops)
790 simgrid::s4u::this_actor::execute(flops);
792 void sg_actor_execute_with_priority(double flops, double priority)
794 simgrid::s4u::this_actor::exec_init(flops)->set_priority(priority)->wait();
797 void sg_actor_parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount)
799 std::vector<simgrid::s4u::Host*> hosts(host_list, host_list + host_nb);
800 std::vector<double> flops;
801 std::vector<double> bytes;
802 if (flops_amount != nullptr)
803 flops = std::vector<double>(flops_amount, flops_amount + host_nb);
804 if (bytes_amount != nullptr)
805 bytes = std::vector<double>(bytes_amount, bytes_amount + host_nb * host_nb);
807 simgrid::s4u::this_actor::parallel_execute(hosts, flops, bytes);
810 /** @brief Take an extra reference on that actor to prevent it to be garbage-collected */
811 void sg_actor_ref(const_sg_actor_t actor)
813 intrusive_ptr_add_ref(actor);
815 /** @brief Release a reference on that actor so that it can get be garbage-collected */
816 void sg_actor_unref(const_sg_actor_t actor)
818 intrusive_ptr_release(actor);
821 /** @brief Return the user data of a #sg_actor_t */
822 void* sg_actor_get_data(const_sg_actor_t actor)
824 return actor->get_data<void>();
827 /** @brief Set the user data of a #sg_actor_t */
828 void sg_actor_set_data(sg_actor_t actor, void* userdata)
830 actor->set_data(userdata);
833 /** @brief Add a function to the list of "on_exit" functions for the current actor.
834 * The on_exit functions are the functions executed when your actor is killed.
835 * You should use them to free the data used by your actor.
837 void sg_actor_on_exit(void_f_int_pvoid_t fun, void* data)
839 simgrid::s4u::this_actor::on_exit([fun, data](bool failed) { fun(failed ? 1 /*FAILURE*/ : 0 /*SUCCESS*/, data); });
842 sg_exec_t sg_actor_exec_init(double computation_amount)
844 simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_init(computation_amount);
849 sg_exec_t sg_actor_parallel_exec_init(int host_nb, const sg_host_t* host_list, double* flops_amount,
850 double* bytes_amount)
852 std::vector<simgrid::s4u::Host*> hosts(host_list, host_list + host_nb);
853 std::vector<double> flops;
854 std::vector<double> bytes;
855 if (flops_amount != nullptr)
856 flops = std::vector<double>(flops_amount, flops_amount + host_nb);
857 if (bytes_amount != nullptr)
858 bytes = std::vector<double>(bytes_amount, bytes_amount + host_nb * host_nb);
860 simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_init(hosts, flops, bytes);
865 sg_exec_t sg_actor_exec_async(double computation_amount)
867 simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_async(computation_amount);