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;
18 Exec::Exec(sg_host_t host, double flops_amount) : Activity(), host_(host), flops_amount_(flops_amount)
20 Activity::set_remaining(flops_amount_);
21 pimpl_ = simix::simcall([this] {
22 return kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl(name_, tracing_category_,
23 /*timeout_detector*/ nullptr, host_));
29 simix::simcall([this] {
30 dynamic_cast<kernel::activity::ExecImpl*>(pimpl_.get())->start(flops_amount_, 1. / priority_, bound_);
32 state_ = State::STARTED;
33 on_start(Actor::self());
39 simgrid::simix::simcall([this] { dynamic_cast<kernel::activity::ExecImpl*>(pimpl_.get())->cancel(); });
40 state_ = State::CANCELED;
46 if (state_ == State::INITED)
48 simcall_execution_wait(pimpl_);
49 state_ = State::FINISHED;
50 on_completion(Actor::self());
54 Exec* Exec::wait_for(double)
60 /** @brief Returns whether the state of the exec is finished */
63 xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED);
65 if (state_ == State::FINISHED)
68 if (state_ == State::INITED)
71 if (simcall_execution_test(pimpl_)) {
72 state_ = State::FINISHED;
79 /** @brief Change the execution priority, don't you think?
81 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
82 * The default priority is 1.
84 * Currently, this cannot be changed once the exec started. */
85 ExecPtr Exec::set_priority(double priority)
87 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
92 /** @brief change the execution bound, ie the maximal amount of flops per second that it may consume, regardless of what
93 * the host may deliver
95 * Currently, this cannot be changed once the exec started. */
96 ExecPtr Exec::set_bound(double bound)
98 xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start");
103 /** @brief Change the host on which this activity takes place.
105 * The activity cannot be terminated already (but it may be started). */
106 ExecPtr Exec::set_host(Host* host)
108 xbt_assert(state_ == State::INITED || state_ == State::STARTED,
109 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
110 if (state_ == State::STARTED)
111 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->migrate(host);
113 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->host_ = host;
117 ExecPtr Exec::set_name(std::string name)
119 xbt_assert(state_ == State::INITED, "Cannot change the name of an exec after its start");
124 ExecPtr Exec::set_tracing_category(std::string category)
126 xbt_assert(state_ == State::INITED, "Cannot change the tracing category of an exec after its start");
127 tracing_category_ = category;
131 /** @brief Retrieve the host on which this activity takes place. */
132 Host* Exec::get_host()
137 /** @brief Returns the amount of flops that remain to be done */
138 double Exec::get_remaining()
140 return simgrid::simix::simcall(
141 [this]() { return boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
144 /** @brief Returns the ratio of elements that are still to do
146 * The returned value is between 0 (completely done) and 1 (nothing done yet).
148 double Exec::get_remaining_ratio()
150 return simgrid::simix::simcall([this]() {
151 return boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->get_remaining_ratio();
155 void intrusive_ptr_release(simgrid::s4u::Exec* e)
157 if (e->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
158 std::atomic_thread_fence(std::memory_order_acquire);
163 void intrusive_ptr_add_ref(simgrid::s4u::Exec* e)
165 e->refcount_.fetch_add(1, std::memory_order_relaxed);
168 } // namespace simgrid