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 xbt::signal<void(Actor const&)> Exec::on_start;
16 xbt::signal<void(Actor const&)> Exec::on_completion;
20 pimpl_ = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl());
25 xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED);
27 if (state_ == State::FINISHED)
30 if (state_ == State::INITED)
33 if (simcall_execution_test(pimpl_)) {
34 state_ = State::FINISHED;
43 if (state_ == State::INITED)
45 simcall_execution_wait(pimpl_);
46 state_ = State::FINISHED;
47 on_completion(*Actor::self());
51 Exec* Exec::wait_for(double)
56 int Exec::wait_any_for(std::vector<ExecPtr>* execs, double timeout)
58 std::unique_ptr<kernel::activity::ExecImpl* []> rexecs(new kernel::activity::ExecImpl*[execs->size()]);
59 std::transform(begin(*execs), end(*execs), rexecs.get(),
60 [](const ExecPtr& exec) { return static_cast<kernel::activity::ExecImpl*>(exec->pimpl_.get()); });
61 return simcall_execution_waitany_for(rexecs.get(), execs->size(), timeout);
66 simix::simcall([this] { boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->cancel(); });
67 state_ = State::CANCELED;
71 void intrusive_ptr_release(simgrid::s4u::Exec* e)
73 if (e->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
74 std::atomic_thread_fence(std::memory_order_acquire);
79 void intrusive_ptr_add_ref(simgrid::s4u::Exec* e)
81 e->refcount_.fetch_add(1, std::memory_order_relaxed);
84 /** @brief change the execution bound
85 * This means changing the maximal amount of flops per second that it may consume, regardless of what the host may
86 * deliver. Currently, this cannot be changed once the exec started.
88 ExecPtr Exec::set_bound(double bound)
90 xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start");
94 ExecPtr Exec::set_timeout(double timeout)
96 xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start");
101 ExecPtr Exec::set_name(const std::string& name)
103 xbt_assert(state_ == State::INITED, "Cannot change the name of an exec after its start");
108 /** @brief Change the execution priority, don't you think?
110 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
111 * The default priority is 1.
113 * Currently, this cannot be changed once the exec started. */
114 ExecPtr Exec::set_priority(double priority)
116 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
117 priority_ = priority;
121 ExecPtr Exec::set_tracing_category(const std::string& category)
123 xbt_assert(state_ == State::INITED, "Cannot change the tracing category of an exec after its start");
124 tracing_category_ = category;
128 ///////////// SEQUENTIAL EXECUTIONS ////////
129 ExecSeq::ExecSeq(sg_host_t host, double flops_amount) : Exec(), flops_amount_(flops_amount)
131 Activity::set_remaining(flops_amount_);
132 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->set_host(host);
135 Exec* ExecSeq::start()
137 simix::simcall([this] {
138 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
140 .set_tracing_category(tracing_category_)
141 .set_sharing_penalty(1. / priority_)
143 .set_flops_amount(flops_amount_)
146 state_ = State::STARTED;
147 on_start(*Actor::self());
151 /** @brief Returns whether the state of the exec is finished */
152 /** @brief Change the host on which this activity takes place.
154 * The activity cannot be terminated already (but it may be started). */
155 ExecPtr ExecSeq::set_host(Host* host)
157 xbt_assert(state_ == State::INITED || state_ == State::STARTED,
158 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
159 if (state_ == State::STARTED)
160 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->migrate(host);
162 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->set_host(host);
167 /** @brief Retrieve the host on which this activity takes place. */
168 Host* ExecSeq::get_host()
173 /** @brief Returns the amount of flops that remain to be done */
174 double ExecSeq::get_remaining()
176 return simgrid::simix::simcall(
177 [this]() { return boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
180 /** @brief Returns the ratio of elements that are still to do
182 * The returned value is between 0 (completely done) and 1 (nothing done yet).
184 double ExecSeq::get_remaining_ratio()
186 return simgrid::simix::simcall([this]() {
187 return boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_)->get_seq_remaining_ratio();
191 ///////////// PARALLEL EXECUTIONS ////////
192 ExecPar::ExecPar(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
193 const std::vector<double>& bytes_amounts)
194 : Exec(), hosts_(hosts), flops_amounts_(flops_amounts), bytes_amounts_(bytes_amounts)
198 Exec* ExecPar::start()
200 simix::simcall([this] {
201 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
203 .set_timeout(timeout_)
204 .set_flops_amounts(flops_amounts_)
205 .set_bytes_amounts(bytes_amounts_)
208 state_ = State::STARTED;
209 on_start(*Actor::self());
213 double ExecPar::get_remaining_ratio()
215 return simix::simcall(
216 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_par_remaining_ratio(); });
219 double ExecPar::get_remaining()
221 XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead.");
222 return get_remaining_ratio();
225 } // namespace simgrid