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, "Cannot change the bound of an exec after its start");
80 ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329
82 xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start");
87 ExecPtr Exec::set_flops_amount(double flops_amount)
89 xbt_assert(state_ == State::INITED, "Cannot change the flop_amount of an exec after its start");
90 flops_amounts_.assign(1, flops_amount);
91 Activity::set_remaining(flops_amounts_.front());
95 ExecPtr Exec::set_flops_amounts(const std::vector<double>& flops_amounts)
97 xbt_assert(state_ == State::INITED, "Cannot change the flops_amounts of an exec after its start");
98 flops_amounts_ = flops_amounts;
103 ExecPtr Exec::set_bytes_amounts(const std::vector<double>& bytes_amounts)
105 xbt_assert(state_ == State::INITED, "Cannot change the bytes_amounts of an exec after its start");
106 bytes_amounts_ = bytes_amounts;
111 /** @brief Retrieve the host on which this activity takes place.
112 * If it runs on more than one host, only the first host is returned.
114 Host* Exec::get_host() const
116 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host();
118 unsigned int Exec::get_host_number() const
120 return static_cast<kernel::activity::ExecImpl*>(pimpl_.get())->get_host_number();
122 double Exec::get_cost() const
124 return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost();
127 /** @brief Change the execution priority, don't you think?
129 * An execution with twice the priority will get twice the amount of flops when the resource is shared.
130 * The default priority is 1.
132 * Currently, this cannot be changed once the exec started. */
133 ExecPtr Exec::set_priority(double priority)
135 xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start");
136 priority_ = priority;
140 /** @brief Change the host on which this activity takes place.
142 * The activity cannot be terminated already (but it may be started). */
143 ExecPtr Exec::set_host(Host* host)
145 xbt_assert(state_ == State::INITED || state_ == State::STARTING || state_ == State::STARTED,
146 "Cannot change the host of an exec once it's done (state: %d)", (int)state_);
147 hosts_.assign(1, host);
149 if (state_ == State::STARTED)
150 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->migrate(host);
152 boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->set_host(host);
154 if (state_ == State::STARTING)
155 // Setting the host may allow to start the activity, let's try
161 ExecPtr Exec::set_hosts(const std::vector<Host*>& hosts)
163 xbt_assert(state_ == State::INITED || state_ == State::STARTING,
164 "Cannot change the hosts of an exec once it's done (state: %d)", (int)state_);
169 // Setting the host may allow to start the activity, let's try
170 if (state_ == State::STARTING)
176 ///////////// SEQUENTIAL EXECUTIONS ////////
180 kernel::actor::simcall([this] {
181 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
183 .set_timeout(timeout_)
184 .set_flops_amounts(flops_amounts_)
185 .set_bytes_amounts(bytes_amounts_)
189 kernel::actor::simcall([this] {
190 (*boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_))
191 .set_name(get_name())
192 .set_tracing_category(get_tracing_category())
193 .set_sharing_penalty(1. / priority_)
195 .set_flops_amount(flops_amounts_.front())
202 state_ = State::STARTED;
203 start_time_ = pimpl_->surf_action_->get_start_time();
208 double Exec::get_remaining() const
211 XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead.");
212 return get_remaining_ratio();
214 return kernel::actor::simcall(
215 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_remaining(); });
218 /** @brief Returns the ratio of elements that are still to do
220 * The returned value is between 0 (completely done) and 1 (nothing done yet).
222 double Exec::get_remaining_ratio() const
225 return kernel::actor::simcall(
226 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_par_remaining_ratio(); });
228 return kernel::actor::simcall(
229 [this]() { return boost::static_pointer_cast<kernel::activity::ExecImpl>(pimpl_)->get_seq_remaining_ratio(); });
233 } // namespace simgrid
234 /* **************************** Public C interface *************************** */
235 void sg_exec_set_bound(sg_exec_t exec, double bound)
237 exec->set_bound(bound);
240 const char* sg_exec_get_name(const_sg_exec_t exec)
242 return exec->get_cname();
245 void sg_exec_set_name(sg_exec_t exec, const char* name)
247 exec->set_name(name);
250 void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host)
252 exec->set_host(new_host);
255 double sg_exec_get_remaining(const_sg_exec_t exec)
257 return exec->get_remaining();
260 double sg_exec_get_remaining_ratio(const_sg_exec_t exec)
262 return exec->get_remaining_ratio();
265 void sg_exec_start(sg_exec_t exec)
270 void sg_exec_cancel(sg_exec_t exec)
276 int sg_exec_test(sg_exec_t exec)
278 bool finished = exec->test();
284 sg_error_t sg_exec_wait(sg_exec_t exec)
286 sg_error_t status = SG_OK;
288 simgrid::s4u::ExecPtr s4u_exec(exec, false);
290 s4u_exec->wait_for(-1);
291 } catch (const simgrid::TimeoutException&) {
292 status = SG_ERROR_TIMEOUT;
293 } catch (const simgrid::CancelException&) {
294 status = SG_ERROR_CANCELED;
295 } catch (const simgrid::HostFailureException&) {
296 status = SG_ERROR_HOST;
301 sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout)
303 sg_error_t status = SG_OK;
305 simgrid::s4u::ExecPtr s4u_exec(exec, false);
307 s4u_exec->wait_for(timeout);
308 } catch (const simgrid::TimeoutException&) {
309 status = SG_ERROR_TIMEOUT;
310 } catch (const simgrid::CancelException&) {
311 status = SG_ERROR_CANCELED;
312 } catch (const simgrid::HostFailureException&) {
313 status = SG_ERROR_HOST;
318 int sg_exec_wait_any(sg_exec_t* execs, size_t count)
320 return sg_exec_wait_any_for(execs, count, -1);
323 int sg_exec_wait_any_for(sg_exec_t* execs, size_t count, double timeout)
325 std::vector<simgrid::s4u::ExecPtr> s4u_execs;
326 for (unsigned int i = 0; i < count; i++)
327 s4u_execs.emplace_back(execs[i], false);
329 int pos = simgrid::s4u::Exec::wait_any_for(&s4u_execs, timeout);
330 for (unsigned i = 0; i < count; i++) {
331 if (pos != -1 && static_cast<unsigned>(pos) != i)
332 s4u_execs[i]->add_ref();