1 /* Copyright (c) 2006-2020. 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 const&)> Exec::on_start;
16 xbt::signal<void(Actor const&, Exec const&)> Exec::on_completion;
20 pimpl_ = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl());
25 xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::STARTING ||
26 state_ == State::FINISHED);
28 if (state_ == State::FINISHED)
31 if (state_ == State::INITED || state_ == State::STARTING)
32 this->vetoable_start();
34 if (simcall_execution_test(pimpl_)) {
35 state_ = State::FINISHED;
44 return this->wait_for(-1);
47 Exec* Exec::wait_for(double timeout)
49 if (state_ == State::INITED)
51 simcall_execution_wait(pimpl_, timeout);
52 state_ = State::FINISHED;
53 on_completion(*Actor::self(), *this);
54 this->release_dependencies();
58 int Exec::wait_any_for(std::vector<ExecPtr>* execs, double timeout)
60 std::unique_ptr<kernel::activity::ExecImpl* []> rexecs(new kernel::activity::ExecImpl*[execs->size()]);
61 std::transform(begin(*execs), end(*execs), rexecs.get(),
62 [](const ExecPtr& exec) { return static_cast<kernel::activity::ExecImpl*>(exec->pimpl_.get()); });
64 int changed_pos = simcall_execution_waitany_for(rexecs.get(), execs->size(), timeout);
65 if (changed_pos != -1)
66 execs->at(changed_pos)->release_dependencies();
72 kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->cancel(); });
73 state_ = State::CANCELED;
77 /** @brief change the execution bound
78 * This means changing the maximal amount of flops per second that it may consume, regardless of what the host may
79 * deliver. Currently, this cannot be changed once the exec started.
81 ExecPtr Exec::set_bound(double bound)
83 xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start");
87 ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329
89 xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start");
94 /** @brief Retrieve the host on which this activity takes place.
95 * If it runs on more than one host, only the first host is returned.
97 Host* Exec::get_host() const
99 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host();
101 unsigned int Exec::get_host_number() const
103 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host_number();
105 double Exec::get_start_time() const
107 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_start_time();
109 double Exec::get_finish_time() const
111 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_finish_time();
113 double Exec::get_cost() const
115 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost();
118 /** @brief Change the execution priority, don't you think?
120 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
121 * The default priority is 1.
123 * Currently, this cannot be changed once the exec started. */
124 ExecPtr Exec::set_priority(double priority)
126 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
127 priority_ = priority;
131 ///////////// SEQUENTIAL EXECUTIONS ////////
132 ExecSeq::ExecSeq(sg_host_t host, double flops_amount) : Exec(), flops_amount_(flops_amount)
134 Activity::set_remaining(flops_amount_);
135 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->set_host(host);
138 Exec* ExecSeq::start()
140 kernel::actor::simcall([this] {
141 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
142 .set_name(get_name())
143 .set_tracing_category(get_tracing_category())
144 .set_sharing_penalty(1. / priority_)
146 .set_flops_amount(flops_amount_)
149 state_ = State::STARTED;
150 on_start(*Actor::self(), *this);
154 /** @brief Returns whether the state of the exec is finished */
155 /** @brief Change the host on which this activity takes place.
157 * The activity cannot be terminated already (but it may be started). */
158 ExecPtr ExecSeq::set_host(Host* host)
160 xbt_assert(state_ == State::INITED || state_ == State::STARTED,
161 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
162 if (state_ == State::STARTED)
163 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->migrate(host);
164 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->set_host(host);
168 /** @brief Returns the amount of flops that remain to be done */
169 double ExecSeq::get_remaining()
171 return kernel::actor::simcall(
172 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
175 /** @brief Returns the ratio of elements that are still to do
177 * The returned value is between 0 (completely done) and 1 (nothing done yet).
179 double ExecSeq::get_remaining_ratio()
181 return kernel::actor::simcall(
182 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_seq_remaining_ratio(); });
185 ///////////// PARALLEL EXECUTIONS ////////
186 ExecPar::ExecPar(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
187 const std::vector<double>& bytes_amounts)
188 : Exec(), hosts_(hosts), flops_amounts_(flops_amounts), bytes_amounts_(bytes_amounts)
192 Exec* ExecPar::start()
194 kernel::actor::simcall([this] {
195 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
197 .set_timeout(timeout_)
198 .set_flops_amounts(flops_amounts_)
199 .set_bytes_amounts(bytes_amounts_)
202 state_ = State::STARTED;
203 on_start(*Actor::self(), *this);
207 double ExecPar::get_remaining_ratio()
209 return kernel::actor::simcall(
210 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_par_remaining_ratio(); });
213 double ExecPar::get_remaining()
215 XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead.");
216 return get_remaining_ratio();
219 } // namespace simgrid