1 /* Copyright (c) 2007-2019. 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 "src/kernel/activity/ExecImpl.hpp"
7 #include "simgrid/Exception.hpp"
8 #include "simgrid/modelchecker.h"
9 #include "src/mc/mc_replay.hpp"
10 #include "src/simix/smx_host_private.hpp"
11 #include "src/surf/cpu_interface.hpp"
12 #include "src/surf/surf_interface.hpp"
14 #include "simgrid/s4u/Host.hpp"
16 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_process);
18 void simcall_HANDLER_execution_wait(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro)
20 XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_);
22 /* Associate this simcall to the synchro */
23 synchro->simcalls_.push_back(simcall);
24 simcall->issuer->waiting_synchro = synchro;
26 /* set surf's synchro */
27 if (MC_is_active() || MC_record_replay_is_active()) {
28 synchro->state_ = SIMIX_DONE;
33 /* If the synchro is already finished then perform the error handling */
34 if (synchro->state_ != SIMIX_RUNNING)
38 void simcall_HANDLER_execution_test(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro)
40 int res = (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING);
42 synchro->simcalls_.push_back(simcall);
45 SIMIX_simcall_answer(simcall);
47 simcall_execution_test__set__result(simcall, res);
54 ExecImpl::ExecImpl(std::string name, std::string tracing_category, s4u::Host* host)
55 : ActivityImpl(std::move(name)), host_(host)
57 this->state_ = SIMIX_RUNNING;
58 this->set_category(std::move(tracing_category));
60 XBT_DEBUG("Create exec %p", this);
63 ExecImpl::ExecImpl(std::string name, std::string tracing_category, s4u::Host* host, double timeout)
64 : ExecImpl(std::move(name), std::move(tracing_category), nullptr)
66 if (timeout > 0 && not MC_is_active() && not MC_record_replay_is_active()) {
67 timeout_detector_ = host->pimpl_cpu->sleep(timeout);
68 timeout_detector_->set_data(this);
70 XBT_DEBUG("Create exec %p", this);
76 surf_action_->unref();
77 if (timeout_detector_)
78 timeout_detector_->unref();
79 XBT_DEBUG("Destroy exec %p", this);
82 ExecImpl* ExecImpl::start(double flops_amount, double priority, double bound)
84 if (not MC_is_active() && not MC_record_replay_is_active()) {
85 surf_action_ = host_->pimpl_cpu->execution_start(flops_amount);
86 surf_action_->set_data(this);
87 surf_action_->set_priority(priority);
89 surf_action_->set_bound(bound);
92 XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
93 ExecImpl::on_creation(this);
97 void ExecImpl::cancel()
99 XBT_VERB("This exec %p is canceled", this);
100 if (surf_action_ != nullptr)
101 surf_action_->cancel();
104 double ExecImpl::get_remaining()
106 xbt_assert(host_ != nullptr, "Calling remains() on a parallel execution is not allowed. "
107 "We would need to return a vector instead of a scalar. "
108 "Did you mean remainingRatio() instead?");
109 return surf_action_ ? surf_action_->get_remains() : 0;
112 double ExecImpl::get_remaining_ratio()
115 nullptr) // parallel task: their remain is already between 0 and 1 (see comment in ExecImpl::get_remaining())
116 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains();
117 else // Actually compute the ratio for sequential tasks
118 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains() / surf_action_->get_cost();
121 void ExecImpl::set_bound(double bound)
124 surf_action_->set_bound(bound);
126 void ExecImpl::set_priority(double priority)
129 surf_action_->set_priority(priority);
132 void ExecImpl::post()
134 if (host_ && not host_->is_on()) { /* FIXME: handle resource failure for parallel tasks too */
135 /* If the host running the synchro failed, notice it. This way, the asking
136 * process can be killed if it runs on that host itself */
137 state_ = SIMIX_FAILED;
138 } else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
139 /* If the host running the synchro didn't fail, then the synchro was canceled */
140 state_ = SIMIX_CANCELED;
141 } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
142 state_ = SIMIX_TIMEOUT;
150 surf_action_->unref();
151 surf_action_ = nullptr;
153 if (timeout_detector_) {
154 timeout_detector_->unref();
155 timeout_detector_ = nullptr;
158 /* If there are simcalls associated with the synchro, then answer them */
159 if (not simcalls_.empty())
163 void ExecImpl::finish()
165 while (not simcalls_.empty()) {
166 smx_simcall_t simcall = simcalls_.front();
167 simcalls_.pop_front();
171 /* do nothing, synchro done */
172 XBT_DEBUG("ExecImpl::finish(): execution successful");
176 XBT_DEBUG("ExecImpl::finish(): host '%s' failed", simcall->issuer->get_host()->get_cname());
177 simcall->issuer->context_->iwannadie = true;
178 simcall->issuer->exception_ =
179 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
183 XBT_DEBUG("ExecImpl::finish(): execution canceled");
184 simcall->issuer->exception_ =
185 std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "Execution Canceled"));
189 XBT_DEBUG("ExecImpl::finish(): execution timeouted");
190 simcall->issuer->exception_ = std::make_exception_ptr(simgrid::TimeoutError(XBT_THROW_POINT, "Timeouted"));
194 xbt_die("Internal error in ExecImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
197 simcall->issuer->waiting_synchro = nullptr;
198 simcall_execution_wait__set__result(simcall, state_);
200 /* Fail the process if the host is down */
201 if (simcall->issuer->get_host()->is_on())
202 SIMIX_simcall_answer(simcall);
204 simcall->issuer->context_->iwannadie = true;
208 ActivityImpl* ExecImpl::migrate(simgrid::s4u::Host* to)
210 if (not MC_is_active() && not MC_record_replay_is_active()) {
211 resource::Action* old_action = this->surf_action_;
212 resource::Action* new_action = to->pimpl_cpu->execution_start(old_action->get_cost());
213 new_action->set_remains(old_action->get_remains());
214 new_action->set_data(this);
215 new_action->set_priority(old_action->get_priority());
217 // FIXME: the user-defined bound seem to not be kept by LMM, that seem to overwrite it for the multi-core modeling.
218 // I hope that the user did not provide any.
220 old_action->set_data(nullptr);
221 old_action->cancel();
223 this->surf_action_ = new_action;
226 on_migration(this, to);
233 xbt::signal<void(ExecImplPtr)> ExecImpl::on_creation;
234 xbt::signal<void(ExecImplPtr)> ExecImpl::on_completion;
235 xbt::signal<void(ExecImplPtr, s4u::Host*)> ExecImpl::on_migration;
237 } // namespace activity
238 } // namespace kernel
239 } // namespace simgrid