1 /* Copyright (c) 2006-2021. 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/exec.h"
8 #include "simgrid/s4u/Actor.hpp"
9 #include "simgrid/s4u/Exec.hpp"
10 #include "src/kernel/activity/ExecImpl.hpp"
11 #include "src/kernel/actor/ActorImpl.hpp"
12 #include "src/mc/checker/SimcallObserver.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_exec, s4u_activity, "S4U asynchronous executions");
19 xbt::signal<void(Exec const&)> Exec::on_start;
20 xbt::signal<void(Exec const&)> Exec::on_completion;
22 Exec::Exec(kernel::activity::ExecImplPtr pimpl)
29 auto pimpl = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl());
30 return ExecPtr(pimpl->get_iface());
35 return this->wait_for(-1);
38 Exec* Exec::wait_for(double timeout)
40 if (state_ == State::INITED)
43 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
44 kernel::actor::simcall_blocking([this, issuer, timeout] { this->get_impl()->wait_for(issuer, timeout); });
45 state_ = State::FINISHED;
47 this->release_dependencies();
51 int Exec::wait_any_for(std::vector<ExecPtr>* execs, double timeout)
53 std::vector<kernel::activity::ExecImpl*> rexecs(execs->size());
54 std::transform(begin(*execs), end(*execs), begin(rexecs),
55 [](const ExecPtr& exec) { return static_cast<kernel::activity::ExecImpl*>(exec->pimpl_.get()); });
57 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
58 mc::ExecutionWaitanySimcall observer{issuer, &rexecs, timeout};
59 int changed_pos = kernel::actor::simcall_blocking(
61 kernel::activity::ExecImpl::wait_any_for(observer.get_issuer(), observer.get_execs(), observer.get_timeout());
64 if (changed_pos != -1) {
65 on_completion(*(execs->at(changed_pos)));
66 execs->at(changed_pos)->release_dependencies();
73 kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->cancel(); });
74 state_ = State::CANCELED;
79 /** @brief change the execution bound
80 * This means changing the maximal amount of flops per second that it may consume, regardless of what the host may
81 * deliver. Currently, this cannot be changed once the exec started.
83 ExecPtr Exec::set_bound(double bound)
85 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
86 "Cannot change the bound of an exec after its start");
90 ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329
92 xbt_assert(state_ == State::INITED|| state_ == State::STARTING,
93 "Cannot change the bound of an exec after its start");
98 ExecPtr Exec::set_flops_amount(double flops_amount)
100 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
101 "Cannot change the flop_amount of an exec after its start");
102 flops_amounts_.assign(1, flops_amount);
103 Activity::set_remaining(flops_amounts_.front());
107 ExecPtr Exec::set_flops_amounts(const std::vector<double>& flops_amounts)
109 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
110 "Cannot change the flops_amounts of an exec after its start");
111 flops_amounts_ = flops_amounts;
116 ExecPtr Exec::set_bytes_amounts(const std::vector<double>& bytes_amounts)
118 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
119 "Cannot change the bytes_amounts of an exec after its start");
120 bytes_amounts_ = bytes_amounts;
125 /** @brief Retrieve the host on which this activity takes place.
126 * If it runs on more than one host, only the first host is returned.
128 Host* Exec::get_host() const
130 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host();
132 unsigned int Exec::get_host_number() const
134 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host_number();
136 double Exec::get_cost() const
138 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost();
141 /** @brief Change the execution priority, don't you think?
143 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
144 * The default priority is 1.
146 * Currently, this cannot be changed once the exec started. */
147 ExecPtr Exec::set_priority(double priority)
149 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
150 priority_ = priority;
154 /** @brief Change the host on which this activity takes place.
156 * The activity cannot be terminated already (but it may be started). */
157 ExecPtr Exec::set_host(Host* host)
159 xbt_assert(state_ == State::INITED || state_ == State::STARTING || state_ == State::STARTED,
160 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
161 hosts_.assign(1, host);
163 if (state_ == State::STARTED)
164 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->migrate(host);
166 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->set_host(host);
168 if (state_ == State::STARTING)
169 // Setting the host may allow to start the activity, let's try
175 ExecPtr Exec::set_hosts(const std::vector<Host*>& hosts)
177 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
178 "Cannot change the hosts of an exec once it's done (state: %d)", (int)state_);
183 // Setting the host may allow to start the activity, let's try
184 if (state_ == State::STARTING)
193 kernel::actor::simcall([this] {
194 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
196 .set_timeout(timeout_)
197 .set_flops_amounts(flops_amounts_)
198 .set_bytes_amounts(bytes_amounts_)
202 kernel::actor::simcall([this] {
203 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
204 .set_name(get_name())
205 .set_tracing_category(get_tracing_category())
206 .set_sharing_penalty(1. / priority_)
208 .set_flops_amount(flops_amounts_.front())
215 state_ = State::STARTED;
216 start_time_ = pimpl_->surf_action_->get_start_time();
221 double Exec::get_remaining() const
224 XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead.");
225 return get_remaining_ratio();
227 return kernel::actor::simcall(
228 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
231 /** @brief Returns the ratio of elements that are still to do
233 * The returned value is between 0 (completely done) and 1 (nothing done yet).
235 double Exec::get_remaining_ratio() const
238 return kernel::actor::simcall(
239 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_par_remaining_ratio(); });
241 return kernel::actor::simcall(
242 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_seq_remaining_ratio(); });
246 } // namespace simgrid
248 /* **************************** Public C interface *************************** */
249 void sg_exec_set_bound(sg_exec_t exec, double bound)
251 exec->set_bound(bound);
254 const char* sg_exec_get_name(const_sg_exec_t exec)
256 return exec->get_cname();
259 void sg_exec_set_name(sg_exec_t exec, const char* name)
261 exec->set_name(name);
264 void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host)
266 exec->set_host(new_host);
269 double sg_exec_get_remaining(const_sg_exec_t exec)
271 return exec->get_remaining();
274 double sg_exec_get_remaining_ratio(const_sg_exec_t exec)
276 return exec->get_remaining_ratio();
279 void sg_exec_start(sg_exec_t exec)
281 exec->vetoable_start();
284 void sg_exec_cancel(sg_exec_t exec)
290 int sg_exec_test(sg_exec_t exec)
292 bool finished = exec->test();
298 sg_error_t sg_exec_wait(sg_exec_t exec)
300 sg_error_t status = SG_OK;
302 simgrid::s4u::ExecPtr s4u_exec(exec, false);
304 s4u_exec->wait_for(-1);
305 } catch (const simgrid::TimeoutException&) {
306 status = SG_ERROR_TIMEOUT;
307 } catch (const simgrid::CancelException&) {
308 status = SG_ERROR_CANCELED;
309 } catch (const simgrid::HostFailureException&) {
310 status = SG_ERROR_HOST;
315 sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout)
317 sg_error_t status = SG_OK;
319 simgrid::s4u::ExecPtr s4u_exec(exec, false);
321 s4u_exec->wait_for(timeout);
322 } catch (const simgrid::TimeoutException&) {
323 status = SG_ERROR_TIMEOUT;
324 } catch (const simgrid::CancelException&) {
325 status = SG_ERROR_CANCELED;
326 } catch (const simgrid::HostFailureException&) {
327 status = SG_ERROR_HOST;
332 int sg_exec_wait_any(sg_exec_t* execs, size_t count)
334 return sg_exec_wait_any_for(execs, count, -1);
337 int sg_exec_wait_any_for(sg_exec_t* execs, size_t count, double timeout)
339 std::vector<simgrid::s4u::ExecPtr> s4u_execs;
340 for (unsigned int i = 0; i < count; i++)
341 s4u_execs.emplace_back(execs[i], false);
343 int pos = simgrid::s4u::Exec::wait_any_for(&s4u_execs, timeout);
344 for (unsigned i = 0; i < count; i++) {
345 if (pos != -1 && static_cast<unsigned>(pos) != i)
346 s4u_execs[i]->add_ref();