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/surf/HostImpl.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->register_simcall(simcall);
25 /* set surf's synchro */
26 if (MC_is_active() || MC_record_replay_is_active()) {
27 synchro->state_ = SIMIX_DONE;
32 /* If the synchro is already finished then perform the error handling */
33 if (synchro->state_ != SIMIX_RUNNING)
37 void simcall_HANDLER_execution_test(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro)
39 bool res = (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING);
41 synchro->simcalls_.push_back(simcall);
44 SIMIX_simcall_answer(simcall);
46 simcall_execution_test__set__result(simcall, res);
55 if (timeout_detector_)
56 timeout_detector_->unref();
57 XBT_DEBUG("Destroy exec %p", this);
60 ExecImpl& ExecImpl::set_host(s4u::Host* host)
62 if (not hosts_.empty())
64 hosts_.push_back(host);
68 ExecImpl& ExecImpl::set_hosts(const std::vector<s4u::Host*>& hosts)
74 ExecImpl& ExecImpl::set_timeout(double timeout)
76 if (timeout > 0 && not MC_is_active() && not MC_record_replay_is_active()) {
77 timeout_detector_ = hosts_.front()->pimpl_cpu->sleep(timeout);
78 timeout_detector_->set_activity(this);
83 ExecImpl& ExecImpl::set_flops_amount(double flops_amount)
85 if (not flops_amounts_.empty())
86 flops_amounts_.clear();
87 flops_amounts_.push_back(flops_amount);
91 ExecImpl& ExecImpl::set_flops_amounts(const std::vector<double>& flops_amounts)
93 flops_amounts_ = flops_amounts;
97 ExecImpl& ExecImpl::set_bytes_amounts(const std::vector<double>& bytes_amounts)
99 bytes_amounts_ = bytes_amounts;
104 ExecImpl* ExecImpl::start()
106 state_ = SIMIX_RUNNING;
107 if (not MC_is_active() && not MC_record_replay_is_active()) {
108 if (hosts_.size() == 1) {
109 surf_action_ = hosts_.front()->pimpl_cpu->execution_start(flops_amounts_.front());
110 surf_action_->set_priority(priority_);
111 surf_action_->set_category(get_tracing_category());
114 surf_action_->set_bound(bound_);
116 surf_action_ = surf_host_model->execute_parallel(hosts_, flops_amounts_.data(), bytes_amounts_.data(), -1);
118 surf_action_->set_activity(this);
121 XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
122 ExecImpl::on_creation(*this);
126 double ExecImpl::get_seq_remaining_ratio()
128 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains() / surf_action_->get_cost();
131 double ExecImpl::get_par_remaining_ratio()
133 // parallel task: their remain is already between 0 and 1
134 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains();
137 ExecImpl& ExecImpl::set_bound(double bound)
143 ExecImpl& ExecImpl::set_priority(double priority)
145 priority_ = priority;
149 void ExecImpl::post()
151 if (hosts_.size() == 1 && not hosts_.front()->is_on()) { /* FIXME: handle resource failure for parallel tasks too */
152 /* If the host running the synchro failed, notice it. This way, the asking
153 * process can be killed if it runs on that host itself */
154 state_ = SIMIX_FAILED;
155 } else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
156 /* If the host running the synchro didn't fail, then the synchro was canceled */
157 state_ = SIMIX_CANCELED;
158 } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
159 state_ = SIMIX_TIMEOUT;
164 on_completion(*this);
168 if (timeout_detector_) {
169 timeout_detector_->unref();
170 timeout_detector_ = nullptr;
173 /* If there are simcalls associated with the synchro, then answer them */
174 if (not simcalls_.empty())
178 void ExecImpl::finish()
180 while (not simcalls_.empty()) {
181 smx_simcall_t simcall = simcalls_.front();
182 simcalls_.pop_front();
186 /* do nothing, synchro done */
187 XBT_DEBUG("ExecImpl::finish(): execution successful");
191 XBT_DEBUG("ExecImpl::finish(): host '%s' failed", simcall->issuer->get_host()->get_cname());
192 simcall->issuer->context_->iwannadie = true;
193 if (simcall->issuer->get_host()->is_on())
194 simcall->issuer->exception_ =
195 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
196 /* else, the actor will be killed with no possibility to survive */
200 XBT_DEBUG("ExecImpl::finish(): execution canceled");
201 simcall->issuer->exception_ =
202 std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "Execution Canceled"));
206 XBT_DEBUG("ExecImpl::finish(): execution timeouted");
207 simcall->issuer->exception_ = std::make_exception_ptr(simgrid::TimeoutError(XBT_THROW_POINT, "Timeouted"));
211 xbt_die("Internal error in ExecImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
214 simcall->issuer->waiting_synchro = nullptr;
215 simcall_execution_wait__set__result(simcall, state_);
217 /* Fail the process if the host is down */
218 if (simcall->issuer->get_host()->is_on())
219 SIMIX_simcall_answer(simcall);
221 simcall->issuer->context_->iwannadie = true;
225 ActivityImpl* ExecImpl::migrate(s4u::Host* to)
227 if (not MC_is_active() && not MC_record_replay_is_active()) {
228 resource::Action* old_action = this->surf_action_;
229 resource::Action* new_action = to->pimpl_cpu->execution_start(old_action->get_cost());
230 new_action->set_remains(old_action->get_remains());
231 new_action->set_activity(this);
232 new_action->set_priority(old_action->get_priority());
234 // FIXME: the user-defined bound seem to not be kept by LMM, that seem to overwrite it for the multi-core modeling.
235 // I hope that the user did not provide any.
237 old_action->set_activity(nullptr);
238 old_action->cancel();
240 this->surf_action_ = new_action;
243 on_migration(*this, to);
250 xbt::signal<void(ExecImpl&)> ExecImpl::on_creation;
251 xbt::signal<void(ExecImpl const&)> ExecImpl::on_completion;
252 xbt::signal<void(ExecImpl const&, s4u::Host*)> ExecImpl::on_migration;
254 } // namespace activity
255 } // namespace kernel
256 } // namespace simgrid