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"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_exec, s4u_activity, "S4U asynchronous executions");
17 xbt::signal<void(Exec const&)> Exec::on_start;
18 xbt::signal<void(Exec const&)> Exec::on_completion;
20 Exec::Exec(kernel::activity::ExecImplPtr pimpl)
27 auto pimpl = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl());
28 return ExecPtr(pimpl->get_iface());
33 return this->wait_for(-1);
36 Exec* Exec::wait_for(double timeout)
38 if (state_ == State::INITED)
41 kernel::actor::ActorImpl* issuer = Actor::self()->get_impl();
42 kernel::actor::simcall_blocking<void>([this, issuer, timeout] { this->get_impl()->wait_for(issuer, timeout); });
43 state_ = State::FINISHED;
45 this->release_dependencies();
49 int Exec::wait_any_for(std::vector<ExecPtr>* execs, double timeout)
51 std::vector<kernel::activity::ExecImpl*> rexecs(execs->size());
52 std::transform(begin(*execs), end(*execs), begin(rexecs),
53 [](const ExecPtr& exec) { return static_cast<kernel::activity::ExecImpl*>(exec->pimpl_.get()); });
55 int changed_pos = simcall_execution_waitany_for(rexecs.data(), rexecs.size(), timeout);
56 if (changed_pos != -1) {
57 on_completion(*(execs->at(changed_pos)));
58 execs->at(changed_pos)->release_dependencies();
65 kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->cancel(); });
66 state_ = State::CANCELED;
70 /** @brief change the execution bound
71 * This means changing the maximal amount of flops per second that it may consume, regardless of what the host may
72 * deliver. Currently, this cannot be changed once the exec started.
74 ExecPtr Exec::set_bound(double bound)
76 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
77 "Cannot change the bound of an exec after its start");
81 ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329
83 xbt_assert(state_ == State::INITED|| state_ == State::STARTING,
84 "Cannot change the bound of an exec after its start");
89 ExecPtr Exec::set_flops_amount(double flops_amount)
91 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
92 "Cannot change the flop_amount of an exec after its start");
93 flops_amounts_.assign(1, flops_amount);
94 Activity::set_remaining(flops_amounts_.front());
98 ExecPtr Exec::set_flops_amounts(const std::vector<double>& flops_amounts)
100 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
101 "Cannot change the flops_amounts of an exec after its start");
102 flops_amounts_ = flops_amounts;
107 ExecPtr Exec::set_bytes_amounts(const std::vector<double>& bytes_amounts)
109 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
110 "Cannot change the bytes_amounts of an exec after its start");
111 bytes_amounts_ = bytes_amounts;
116 /** @brief Retrieve the host on which this activity takes place.
117 * If it runs on more than one host, only the first host is returned.
119 Host* Exec::get_host() const
121 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host();
123 unsigned int Exec::get_host_number() const
125 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host_number();
127 double Exec::get_cost() const
129 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost();
132 /** @brief Change the execution priority, don't you think?
134 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
135 * The default priority is 1.
137 * Currently, this cannot be changed once the exec started. */
138 ExecPtr Exec::set_priority(double priority)
140 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
141 priority_ = priority;
145 /** @brief Change the host on which this activity takes place.
147 * The activity cannot be terminated already (but it may be started). */
148 ExecPtr Exec::set_host(Host* host)
150 xbt_assert(state_ == State::INITED || state_ == State::STARTING || state_ == State::STARTED,
151 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
152 hosts_.assign(1, host);
154 if (state_ == State::STARTED)
155 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->migrate(host);
157 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->set_host(host);
159 if (state_ == State::STARTING)
160 // Setting the host may allow to start the activity, let's try
166 ExecPtr Exec::set_hosts(const std::vector<Host*>& hosts)
168 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
169 "Cannot change the hosts of an exec once it's done (state: %d)", (int)state_);
174 // Setting the host may allow to start the activity, let's try
175 if (state_ == State::STARTING)
181 ///////////// SEQUENTIAL EXECUTIONS ////////
185 kernel::actor::simcall([this] {
186 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
188 .set_timeout(timeout_)
189 .set_flops_amounts(flops_amounts_)
190 .set_bytes_amounts(bytes_amounts_)
194 kernel::actor::simcall([this] {
195 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
196 .set_name(get_name())
197 .set_tracing_category(get_tracing_category())
198 .set_sharing_penalty(1. / priority_)
200 .set_flops_amount(flops_amounts_.front())
207 state_ = State::STARTED;
208 start_time_ = pimpl_->surf_action_->get_start_time();
213 double Exec::get_remaining() const
216 XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead.");
217 return get_remaining_ratio();
219 return kernel::actor::simcall(
220 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
223 /** @brief Returns the ratio of elements that are still to do
225 * The returned value is between 0 (completely done) and 1 (nothing done yet).
227 double Exec::get_remaining_ratio() const
230 return kernel::actor::simcall(
231 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_par_remaining_ratio(); });
233 return kernel::actor::simcall(
234 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_seq_remaining_ratio(); });
238 } // namespace simgrid
239 /* **************************** Public C interface *************************** */
240 void sg_exec_set_bound(sg_exec_t exec, double bound)
242 exec->set_bound(bound);
245 const char* sg_exec_get_name(const_sg_exec_t exec)
247 return exec->get_cname();
250 void sg_exec_set_name(sg_exec_t exec, const char* name)
252 exec->set_name(name);
255 void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host)
257 exec->set_host(new_host);
260 double sg_exec_get_remaining(const_sg_exec_t exec)
262 return exec->get_remaining();
265 double sg_exec_get_remaining_ratio(const_sg_exec_t exec)
267 return exec->get_remaining_ratio();
270 void sg_exec_start(sg_exec_t exec)
272 exec->vetoable_start();
275 void sg_exec_cancel(sg_exec_t exec)
281 int sg_exec_test(sg_exec_t exec)
283 bool finished = exec->test();
289 sg_error_t sg_exec_wait(sg_exec_t exec)
291 sg_error_t status = SG_OK;
293 simgrid::s4u::ExecPtr s4u_exec(exec, false);
295 s4u_exec->wait_for(-1);
296 } catch (const simgrid::TimeoutException&) {
297 status = SG_ERROR_TIMEOUT;
298 } catch (const simgrid::CancelException&) {
299 status = SG_ERROR_CANCELED;
300 } catch (const simgrid::HostFailureException&) {
301 status = SG_ERROR_HOST;
306 sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout)
308 sg_error_t status = SG_OK;
310 simgrid::s4u::ExecPtr s4u_exec(exec, false);
312 s4u_exec->wait_for(timeout);
313 } catch (const simgrid::TimeoutException&) {
314 status = SG_ERROR_TIMEOUT;
315 } catch (const simgrid::CancelException&) {
316 status = SG_ERROR_CANCELED;
317 } catch (const simgrid::HostFailureException&) {
318 status = SG_ERROR_HOST;
323 int sg_exec_wait_any(sg_exec_t* execs, size_t count)
325 return sg_exec_wait_any_for(execs, count, -1);
328 int sg_exec_wait_any_for(sg_exec_t* execs, size_t count, double timeout)
330 std::vector<simgrid::s4u::ExecPtr> s4u_execs;
331 for (unsigned int i = 0; i < count; i++)
332 s4u_execs.emplace_back(execs[i], false);
334 int pos = simgrid::s4u::Exec::wait_any_for(&s4u_execs, timeout);
335 for (unsigned i = 0; i < count; i++) {
336 if (pos != -1 && static_cast<unsigned>(pos) != i)
337 s4u_execs[i]->add_ref();