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"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_exec, s4u_activity, "S4U asynchronous executions");
18 xbt::signal<void(Exec const&)> Exec::on_start;
19 xbt::signal<void(Exec const&)> Exec::on_completion;
21 Exec::Exec(kernel::activity::ExecImplPtr pimpl)
28 auto pimpl = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl());
29 return ExecPtr(pimpl->get_iface());
34 return this->wait_for(-1);
37 Exec* Exec::wait_for(double timeout)
39 if (state_ == State::INITED)
42 kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
43 kernel::actor::simcall_blocking<void>([this, issuer, timeout] { this->get_impl()->wait_for(issuer, timeout); });
44 state_ = State::FINISHED;
46 this->release_dependencies();
50 int Exec::wait_any_for(std::vector<ExecPtr>* execs, double timeout)
52 std::vector<kernel::activity::ExecImpl*> rexecs(execs->size());
53 std::transform(begin(*execs), end(*execs), begin(rexecs),
54 [](const ExecPtr& exec) { return static_cast<kernel::activity::ExecImpl*>(exec->pimpl_.get()); });
56 int changed_pos = simcall_execution_waitany_for(rexecs.data(), rexecs.size(), timeout);
57 if (changed_pos != -1) {
58 on_completion(*(execs->at(changed_pos)));
59 execs->at(changed_pos)->release_dependencies();
66 kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->cancel(); });
67 state_ = State::CANCELED;
72 /** @brief change the execution bound
73 * This means changing the maximal amount of flops per second that it may consume, regardless of what the host may
74 * deliver. Currently, this cannot be changed once the exec started.
76 ExecPtr Exec::set_bound(double bound)
78 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
79 "Cannot change the bound of an exec after its start");
83 ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329
85 xbt_assert(state_ == State::INITED|| state_ == State::STARTING,
86 "Cannot change the bound of an exec after its start");
91 ExecPtr Exec::set_flops_amount(double flops_amount)
93 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
94 "Cannot change the flop_amount of an exec after its start");
95 flops_amounts_.assign(1, flops_amount);
96 Activity::set_remaining(flops_amounts_.front());
100 ExecPtr Exec::set_flops_amounts(const std::vector<double>& flops_amounts)
102 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
103 "Cannot change the flops_amounts of an exec after its start");
104 flops_amounts_ = flops_amounts;
109 ExecPtr Exec::set_bytes_amounts(const std::vector<double>& bytes_amounts)
111 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
112 "Cannot change the bytes_amounts of an exec after its start");
113 bytes_amounts_ = bytes_amounts;
118 /** @brief Retrieve the host on which this activity takes place.
119 * If it runs on more than one host, only the first host is returned.
121 Host* Exec::get_host() const
123 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host();
125 unsigned int Exec::get_host_number() const
127 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host_number();
129 double Exec::get_cost() const
131 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost();
134 /** @brief Change the execution priority, don't you think?
136 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
137 * The default priority is 1.
139 * Currently, this cannot be changed once the exec started. */
140 ExecPtr Exec::set_priority(double priority)
142 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
143 priority_ = priority;
147 /** @brief Change the host on which this activity takes place.
149 * The activity cannot be terminated already (but it may be started). */
150 ExecPtr Exec::set_host(Host* host)
152 xbt_assert(state_ == State::INITED || state_ == State::STARTING || state_ == State::STARTED,
153 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
154 hosts_.assign(1, host);
156 if (state_ == State::STARTED)
157 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->migrate(host);
159 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->set_host(host);
161 if (state_ == State::STARTING)
162 // Setting the host may allow to start the activity, let's try
168 ExecPtr Exec::set_hosts(const std::vector<Host*>& hosts)
170 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
171 "Cannot change the hosts of an exec once it's done (state: %d)", (int)state_);
176 // Setting the host may allow to start the activity, let's try
177 if (state_ == State::STARTING)
186 kernel::actor::simcall([this] {
187 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
189 .set_timeout(timeout_)
190 .set_flops_amounts(flops_amounts_)
191 .set_bytes_amounts(bytes_amounts_)
195 kernel::actor::simcall([this] {
196 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
197 .set_name(get_name())
198 .set_tracing_category(get_tracing_category())
199 .set_sharing_penalty(1. / priority_)
201 .set_flops_amount(flops_amounts_.front())
208 state_ = State::STARTED;
209 start_time_ = pimpl_->surf_action_->get_start_time();
214 double Exec::get_remaining() const
217 XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead.");
218 return get_remaining_ratio();
220 return kernel::actor::simcall(
221 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
224 /** @brief Returns the ratio of elements that are still to do
226 * The returned value is between 0 (completely done) and 1 (nothing done yet).
228 double Exec::get_remaining_ratio() const
231 return kernel::actor::simcall(
232 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_par_remaining_ratio(); });
234 return kernel::actor::simcall(
235 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_seq_remaining_ratio(); });
239 } // namespace simgrid
241 /* **************************** Public C interface *************************** */
242 void sg_exec_set_bound(sg_exec_t exec, double bound)
244 exec->set_bound(bound);
247 const char* sg_exec_get_name(const_sg_exec_t exec)
249 return exec->get_cname();
252 void sg_exec_set_name(sg_exec_t exec, const char* name)
254 exec->set_name(name);
257 void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host)
259 exec->set_host(new_host);
262 double sg_exec_get_remaining(const_sg_exec_t exec)
264 return exec->get_remaining();
267 double sg_exec_get_remaining_ratio(const_sg_exec_t exec)
269 return exec->get_remaining_ratio();
272 void sg_exec_start(sg_exec_t exec)
274 exec->vetoable_start();
277 void sg_exec_cancel(sg_exec_t exec)
283 int sg_exec_test(sg_exec_t exec)
285 bool finished = exec->test();
291 sg_error_t sg_exec_wait(sg_exec_t exec)
293 sg_error_t status = SG_OK;
295 simgrid::s4u::ExecPtr s4u_exec(exec, false);
297 s4u_exec->wait_for(-1);
298 } catch (const simgrid::TimeoutException&) {
299 status = SG_ERROR_TIMEOUT;
300 } catch (const simgrid::CancelException&) {
301 status = SG_ERROR_CANCELED;
302 } catch (const simgrid::HostFailureException&) {
303 status = SG_ERROR_HOST;
308 sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout)
310 sg_error_t status = SG_OK;
312 simgrid::s4u::ExecPtr s4u_exec(exec, false);
314 s4u_exec->wait_for(timeout);
315 } catch (const simgrid::TimeoutException&) {
316 status = SG_ERROR_TIMEOUT;
317 } catch (const simgrid::CancelException&) {
318 status = SG_ERROR_CANCELED;
319 } catch (const simgrid::HostFailureException&) {
320 status = SG_ERROR_HOST;
325 int sg_exec_wait_any(sg_exec_t* execs, size_t count)
327 return sg_exec_wait_any_for(execs, count, -1);
330 int sg_exec_wait_any_for(sg_exec_t* execs, size_t count, double timeout)
332 std::vector<simgrid::s4u::ExecPtr> s4u_execs;
333 for (unsigned int i = 0; i < count; i++)
334 s4u_execs.emplace_back(execs[i], false);
336 int pos = simgrid::s4u::Exec::wait_any_for(&s4u_execs, timeout);
337 for (unsigned i = 0; i < count; i++) {
338 if (pos != -1 && static_cast<unsigned>(pos) != i)
339 s4u_execs[i]->add_ref();