1 /* Copyright (c) 2006-2019. 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/s4u/Actor.hpp"
7 #include "simgrid/s4u/Exec.hpp"
8 #include "src/kernel/activity/ExecImpl.hpp"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_exec, s4u_activity, "S4U asynchronous executions");
15 simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Exec::on_start;
16 simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Exec::on_completion;
20 pimpl_ = simcall_execution_start(name_, tracing_category_, flops_amount_, 1. / priority_, bound_, host_);
21 state_ = State::STARTED;
22 on_start(Actor::self());
28 simgrid::simix::simcall([this] { dynamic_cast<kernel::activity::ExecImpl*>(pimpl_.get())->cancel(); });
29 state_ = State::CANCELED;
35 if (state_ == State::INITED)
37 simcall_execution_wait(pimpl_);
38 state_ = State::FINISHED;
39 on_completion(Actor::self());
43 Exec* Exec::wait_for(double timeout)
49 /** @brief Returns whether the state of the exec is finished */
52 xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED);
54 if (state_ == State::FINISHED)
57 if (state_ == State::INITED)
60 if (simcall_execution_test(pimpl_)) {
61 state_ = State::FINISHED;
68 /** @brief Change the execution priority, don't you think?
70 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
71 * The default priority is 1.
73 * Currently, this cannot be changed once the exec started. */
74 ExecPtr Exec::set_priority(double priority)
76 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
81 /** @brief change the execution bound, ie the maximal amount of flops per second that it may consume, regardless of what
82 * the host may deliver
84 * Currently, this cannot be changed once the exec started. */
85 ExecPtr Exec::set_bound(double bound)
87 xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start");
92 /** @brief Change the host on which this activity takes place.
94 * The activity cannot be terminated already (but it may be started). */
95 ExecPtr Exec::set_host(Host* host)
97 xbt_assert(state_ == State::INITED || state_ == State::STARTED,
98 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
99 if (state_ == State::STARTED)
100 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->migrate(host);
105 ExecPtr Exec::set_name(std::string name)
107 xbt_assert(state_ == State::INITED, "Cannot change the name of an exec after its start");
112 ExecPtr Exec::set_tracing_category(std::string category)
114 xbt_assert(state_ == State::INITED, "Cannot change the tracing category of an exec after its start");
115 tracing_category_ = category;
119 /** @brief Retrieve the host on which this activity takes place. */
120 Host* Exec::get_host()
125 /** @brief Returns the amount of flops that remain to be done */
126 double Exec::get_remaining()
128 return simgrid::simix::simcall(
129 [this]() { return boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
132 /** @brief Returns the ratio of elements that are still to do
134 * The returned value is between 0 (completely done) and 1 (nothing done yet).
136 double Exec::get_remaining_ratio()
138 return simgrid::simix::simcall([this]() {
139 return boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->get_remaining_ratio();
143 void intrusive_ptr_release(simgrid::s4u::Exec* e)
145 if (e->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
146 std::atomic_thread_fence(std::memory_order_acquire);
151 void intrusive_ptr_add_ref(simgrid::s4u::Exec* e)
153 e->refcount_.fetch_add(1, std::memory_order_relaxed);
156 } // namespace simgrid