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, resource::Action* timeout_detector, s4u::Host* host)
55 : ActivityImpl(std::move(name)), host_(host), timeout_detector_(timeout_detector)
57 this->state_ = SIMIX_RUNNING;
58 this->set_category(std::move(tracing_category));
60 if (timeout_detector != nullptr)
61 timeout_detector_->set_data(this);
63 XBT_DEBUG("Create exec %p", this);
69 surf_action_->unref();
70 if (timeout_detector_)
71 timeout_detector_->unref();
72 XBT_DEBUG("Destroy exec %p", this);
75 ExecImpl* ExecImpl::start(double flops_amount, double priority, double bound)
77 if (not MC_is_active() && not MC_record_replay_is_active()) {
78 surf_action_ = host_->pimpl_cpu->execution_start(flops_amount);
79 surf_action_->set_data(this);
80 surf_action_->set_priority(priority);
82 surf_action_->set_bound(bound);
85 XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
86 ExecImpl::on_creation(this);
90 void ExecImpl::cancel()
92 XBT_VERB("This exec %p is canceled", this);
93 if (surf_action_ != nullptr)
94 surf_action_->cancel();
97 double ExecImpl::get_remaining()
99 xbt_assert(host_ != nullptr, "Calling remains() on a parallel execution is not allowed. "
100 "We would need to return a vector instead of a scalar. "
101 "Did you mean remainingRatio() instead?");
102 return surf_action_ ? surf_action_->get_remains() : 0;
105 double ExecImpl::get_remaining_ratio()
108 nullptr) // parallel task: their remain is already between 0 and 1 (see comment in ExecImpl::get_remaining())
109 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains();
110 else // Actually compute the ratio for sequential tasks
111 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains() / surf_action_->get_cost();
114 void ExecImpl::set_bound(double bound)
117 surf_action_->set_bound(bound);
119 void ExecImpl::set_priority(double priority)
122 surf_action_->set_priority(priority);
125 void ExecImpl::post()
127 if (host_ && not host_->is_on()) { /* FIXME: handle resource failure for parallel tasks too */
128 /* If the host running the synchro failed, notice it. This way, the asking
129 * process can be killed if it runs on that host itself */
130 state_ = SIMIX_FAILED;
131 } else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
132 /* If the host running the synchro didn't fail, then the synchro was canceled */
133 state_ = SIMIX_CANCELED;
134 } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
135 state_ = SIMIX_TIMEOUT;
143 surf_action_->unref();
144 surf_action_ = nullptr;
146 if (timeout_detector_) {
147 timeout_detector_->unref();
148 timeout_detector_ = nullptr;
151 /* If there are simcalls associated with the synchro, then answer them */
152 if (not simcalls_.empty())
156 void ExecImpl::finish()
158 while (not simcalls_.empty()) {
159 smx_simcall_t simcall = simcalls_.front();
160 simcalls_.pop_front();
164 /* do nothing, synchro done */
165 XBT_DEBUG("ExecImpl::finish(): execution successful");
169 XBT_DEBUG("ExecImpl::finish(): host '%s' failed", simcall->issuer->get_host()->get_cname());
170 simcall->issuer->context_->iwannadie = true;
171 simcall->issuer->exception_ =
172 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
176 XBT_DEBUG("ExecImpl::finish(): execution canceled");
177 simcall->issuer->exception_ =
178 std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "Execution Canceled"));
182 XBT_DEBUG("ExecImpl::finish(): execution timeouted");
183 simcall->issuer->exception_ = std::make_exception_ptr(simgrid::TimeoutError(XBT_THROW_POINT, "Timeouted"));
187 xbt_die("Internal error in ExecImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
190 simcall->issuer->waiting_synchro = nullptr;
191 simcall_execution_wait__set__result(simcall, state_);
193 /* Fail the process if the host is down */
194 if (simcall->issuer->get_host()->is_on())
195 SIMIX_simcall_answer(simcall);
197 simcall->issuer->context_->iwannadie = true;
201 ActivityImpl* ExecImpl::migrate(simgrid::s4u::Host* to)
203 if (not MC_is_active() && not MC_record_replay_is_active()) {
204 resource::Action* old_action = this->surf_action_;
205 resource::Action* new_action = to->pimpl_cpu->execution_start(old_action->get_cost());
206 new_action->set_remains(old_action->get_remains());
207 new_action->set_data(this);
208 new_action->set_priority(old_action->get_priority());
210 // FIXME: the user-defined bound seem to not be kept by LMM, that seem to overwrite it for the multi-core modeling.
211 // I hope that the user did not provide any.
213 old_action->set_data(nullptr);
214 old_action->cancel();
216 this->surf_action_ = new_action;
219 on_migration(this, to);
226 xbt::signal<void(ExecImplPtr)> ExecImpl::on_creation;
227 xbt::signal<void(ExecImplPtr)> ExecImpl::on_completion;
228 xbt::signal<void(ExecImplPtr, s4u::Host*)> ExecImpl::on_migration;
230 } // namespace activity
231 } // namespace kernel
232 } // namespace simgrid