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<void>([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 kernel::actor::simcall_blocking<void>(
61 kernel::activity::ExecImpl::wait_any_for(observer.get_issuer(), observer.get_execs(), observer.get_timeout());
64 int changed_pos = observer.get_result();
65 if (changed_pos != -1) {
66 on_completion(*(execs->at(changed_pos)));
67 execs->at(changed_pos)->release_dependencies();
74 kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->cancel(); });
75 state_ = State::CANCELED;
80 /** @brief change the execution bound
81 * This means changing the maximal amount of flops per second that it may consume, regardless of what the host may
82 * deliver. Currently, this cannot be changed once the exec started.
84 ExecPtr Exec::set_bound(double bound)
86 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
87 "Cannot change the bound of an exec after its start");
91 ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329
93 xbt_assert(state_ == State::INITED|| state_ == State::STARTING,
94 "Cannot change the bound of an exec after its start");
99 ExecPtr Exec::set_flops_amount(double flops_amount)
101 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
102 "Cannot change the flop_amount of an exec after its start");
103 flops_amounts_.assign(1, flops_amount);
104 Activity::set_remaining(flops_amounts_.front());
108 ExecPtr Exec::set_flops_amounts(const std::vector<double>& flops_amounts)
110 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
111 "Cannot change the flops_amounts of an exec after its start");
112 flops_amounts_ = flops_amounts;
117 ExecPtr Exec::set_bytes_amounts(const std::vector<double>& bytes_amounts)
119 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
120 "Cannot change the bytes_amounts of an exec after its start");
121 bytes_amounts_ = bytes_amounts;
126 /** @brief Retrieve the host on which this activity takes place.
127 * If it runs on more than one host, only the first host is returned.
129 Host* Exec::get_host() const
131 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host();
133 unsigned int Exec::get_host_number() const
135 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host_number();
137 double Exec::get_cost() const
139 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost();
142 /** @brief Change the execution priority, don't you think?
144 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
145 * The default priority is 1.
147 * Currently, this cannot be changed once the exec started. */
148 ExecPtr Exec::set_priority(double priority)
150 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
151 priority_ = priority;
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 Exec::set_host(Host* host)
160 xbt_assert(state_ == State::INITED || state_ == State::STARTING || state_ == State::STARTED,
161 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
162 hosts_.assign(1, host);
164 if (state_ == State::STARTED)
165 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->migrate(host);
167 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->set_host(host);
169 if (state_ == State::STARTING)
170 // Setting the host may allow to start the activity, let's try
176 ExecPtr Exec::set_hosts(const std::vector<Host*>& hosts)
178 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
179 "Cannot change the hosts of an exec once it's done (state: %d)", (int)state_);
184 // Setting the host may allow to start the activity, let's try
185 if (state_ == State::STARTING)
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_)
203 kernel::actor::simcall([this] {
204 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
205 .set_name(get_name())
206 .set_tracing_category(get_tracing_category())
207 .set_sharing_penalty(1. / priority_)
209 .set_flops_amount(flops_amounts_.front())
216 state_ = State::STARTED;
217 start_time_ = pimpl_->surf_action_->get_start_time();
222 double Exec::get_remaining() const
225 XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead.");
226 return get_remaining_ratio();
228 return kernel::actor::simcall(
229 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
232 /** @brief Returns the ratio of elements that are still to do
234 * The returned value is between 0 (completely done) and 1 (nothing done yet).
236 double Exec::get_remaining_ratio() const
239 return kernel::actor::simcall(
240 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_par_remaining_ratio(); });
242 return kernel::actor::simcall(
243 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_seq_remaining_ratio(); });
247 } // namespace simgrid
249 /* **************************** Public C interface *************************** */
250 void sg_exec_set_bound(sg_exec_t exec, double bound)
252 exec->set_bound(bound);
255 const char* sg_exec_get_name(const_sg_exec_t exec)
257 return exec->get_cname();
260 void sg_exec_set_name(sg_exec_t exec, const char* name)
262 exec->set_name(name);
265 void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host)
267 exec->set_host(new_host);
270 double sg_exec_get_remaining(const_sg_exec_t exec)
272 return exec->get_remaining();
275 double sg_exec_get_remaining_ratio(const_sg_exec_t exec)
277 return exec->get_remaining_ratio();
280 void sg_exec_start(sg_exec_t exec)
282 exec->vetoable_start();
285 void sg_exec_cancel(sg_exec_t exec)
291 int sg_exec_test(sg_exec_t exec)
293 bool finished = exec->test();
299 sg_error_t sg_exec_wait(sg_exec_t exec)
301 sg_error_t status = SG_OK;
303 simgrid::s4u::ExecPtr s4u_exec(exec, false);
305 s4u_exec->wait_for(-1);
306 } catch (const simgrid::TimeoutException&) {
307 status = SG_ERROR_TIMEOUT;
308 } catch (const simgrid::CancelException&) {
309 status = SG_ERROR_CANCELED;
310 } catch (const simgrid::HostFailureException&) {
311 status = SG_ERROR_HOST;
316 sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout)
318 sg_error_t status = SG_OK;
320 simgrid::s4u::ExecPtr s4u_exec(exec, false);
322 s4u_exec->wait_for(timeout);
323 } catch (const simgrid::TimeoutException&) {
324 status = SG_ERROR_TIMEOUT;
325 } catch (const simgrid::CancelException&) {
326 status = SG_ERROR_CANCELED;
327 } catch (const simgrid::HostFailureException&) {
328 status = SG_ERROR_HOST;
333 int sg_exec_wait_any(sg_exec_t* execs, size_t count)
335 return sg_exec_wait_any_for(execs, count, -1);
338 int sg_exec_wait_any_for(sg_exec_t* execs, size_t count, double timeout)
340 std::vector<simgrid::s4u::ExecPtr> s4u_execs;
341 for (unsigned int i = 0; i < count; i++)
342 s4u_execs.emplace_back(execs[i], false);
344 int pos = simgrid::s4u::Exec::wait_any_for(&s4u_execs, timeout);
345 for (unsigned i = 0; i < count; i++) {
346 if (pos != -1 && static_cast<unsigned>(pos) != i)
347 s4u_execs[i]->add_ref();