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 #include <boost/range/algorithm.hpp>
18 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_process);
20 void simcall_HANDLER_execution_wait(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro)
22 XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_);
24 /* Associate this simcall to the synchro */
25 synchro->register_simcall(simcall);
27 /* set surf's synchro */
28 if (MC_is_active() || MC_record_replay_is_active()) {
29 synchro->state_ = SIMIX_DONE;
34 /* If the synchro is already finished then perform the error handling */
35 if (synchro->state_ != SIMIX_RUNNING)
39 void simcall_HANDLER_execution_test(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro)
41 bool res = (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING);
43 synchro->simcalls_.push_back(simcall);
46 SIMIX_simcall_answer(simcall);
48 simcall_execution_test__set__result(simcall, res);
51 void simcall_HANDLER_execution_waitany_for(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* execs[],
52 size_t count, double timeout)
55 simcall->timer = nullptr;
57 simcall->timer = simgrid::simix::Timer::set(SIMIX_get_clock() + timeout, [simcall]() {
58 simgrid::kernel::activity::ExecImpl** execs = simcall_execution_waitany_for__get__execs(simcall);
59 size_t count = simcall_execution_waitany_for__get__count(simcall);
61 for (size_t i = 0; i < count; i++) {
62 // Remove the first occurence of simcall:
63 auto* exec = execs[i];
64 auto j = boost::range::find(exec->simcalls_, simcall);
65 if (j != exec->simcalls_.end())
66 exec->simcalls_.erase(j);
68 simcall_execution_waitany_for__set__result(simcall, -1);
69 SIMIX_simcall_answer(simcall);
73 for (size_t i = 0; i < count; i++) {
74 /* associate this simcall to the the synchro */
75 auto* exec = execs[i];
76 exec->simcalls_.push_back(simcall);
78 /* see if the synchro is already finished */
79 if (exec->state_ != SIMIX_WAITING && exec->state_ != SIMIX_RUNNING) {
92 if (timeout_detector_)
93 timeout_detector_->unref();
94 XBT_DEBUG("Destroy exec %p", this);
97 ExecImpl& ExecImpl::set_host(s4u::Host* host)
99 if (not hosts_.empty())
101 hosts_.push_back(host);
105 ExecImpl& ExecImpl::set_hosts(const std::vector<s4u::Host*>& hosts)
111 ExecImpl& ExecImpl::set_timeout(double timeout)
113 if (timeout > 0 && not MC_is_active() && not MC_record_replay_is_active()) {
114 timeout_detector_ = hosts_.front()->pimpl_cpu->sleep(timeout);
115 timeout_detector_->set_activity(this);
120 ExecImpl& ExecImpl::set_flops_amount(double flops_amount)
122 if (not flops_amounts_.empty())
123 flops_amounts_.clear();
124 flops_amounts_.push_back(flops_amount);
128 ExecImpl& ExecImpl::set_flops_amounts(const std::vector<double>& flops_amounts)
130 flops_amounts_ = flops_amounts;
134 ExecImpl& ExecImpl::set_bytes_amounts(const std::vector<double>& bytes_amounts)
136 bytes_amounts_ = bytes_amounts;
141 ExecImpl* ExecImpl::start()
143 state_ = SIMIX_RUNNING;
144 if (not MC_is_active() && not MC_record_replay_is_active()) {
145 if (hosts_.size() == 1) {
146 surf_action_ = hosts_.front()->pimpl_cpu->execution_start(flops_amounts_.front());
147 surf_action_->set_priority(priority_);
148 surf_action_->set_category(get_tracing_category());
151 surf_action_->set_bound(bound_);
153 surf_action_ = surf_host_model->execute_parallel(hosts_, flops_amounts_.data(), bytes_amounts_.data(), -1);
155 surf_action_->set_activity(this);
158 XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
159 ExecImpl::on_creation(*this);
163 double ExecImpl::get_seq_remaining_ratio()
165 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains() / surf_action_->get_cost();
168 double ExecImpl::get_par_remaining_ratio()
170 // parallel task: their remain is already between 0 and 1
171 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains();
174 ExecImpl& ExecImpl::set_bound(double bound)
180 ExecImpl& ExecImpl::set_priority(double priority)
182 priority_ = priority;
186 void ExecImpl::post()
188 if (hosts_.size() == 1 && not hosts_.front()->is_on()) { /* FIXME: handle resource failure for parallel tasks too */
189 /* If the host running the synchro failed, notice it. This way, the asking
190 * process can be killed if it runs on that host itself */
191 state_ = SIMIX_FAILED;
192 } else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
193 /* If the host running the synchro didn't fail, then the synchro was canceled */
194 state_ = SIMIX_CANCELED;
195 } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
196 state_ = SIMIX_TIMEOUT;
201 on_completion(*this);
205 if (timeout_detector_) {
206 timeout_detector_->unref();
207 timeout_detector_ = nullptr;
210 /* If there are simcalls associated with the synchro, then answer them */
211 if (not simcalls_.empty())
215 void ExecImpl::finish()
217 while (not simcalls_.empty()) {
218 smx_simcall_t simcall = simcalls_.front();
219 simcalls_.pop_front();
221 /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany
222 * list. Afterwards, get the position of the actual synchro in the waitany list and return it as the result of the
225 if (simcall->call == SIMCALL_NONE) // FIXME: maybe a better way to handle this case
226 continue; // if process handling comm is killed
227 if (simcall->call == SIMCALL_EXECUTION_WAITANY_FOR) {
228 simgrid::kernel::activity::ExecImpl** execs = simcall_execution_waitany_for__get__execs(simcall);
229 size_t count = simcall_execution_waitany_for__get__count(simcall);
231 for (size_t i = 0; i < count; i++) {
232 // Remove the first occurence of simcall:
233 auto* exec = execs[i];
234 auto j = boost::range::find(exec->simcalls_, simcall);
235 if (j != exec->simcalls_.end())
236 exec->simcalls_.erase(j);
238 if (simcall->timer) {
239 simcall->timer->remove();
240 simcall->timer = nullptr;
244 if (not MC_is_active() && not MC_record_replay_is_active()) {
245 ExecImpl** element = std::find(execs, execs + count, this);
246 int rank = (element != execs + count) ? element - execs : -1;
247 simcall_execution_waitany_for__set__result(simcall, rank);
254 /* do nothing, synchro done */
255 XBT_DEBUG("ExecImpl::finish(): execution successful");
259 XBT_DEBUG("ExecImpl::finish(): host '%s' failed", simcall->issuer->get_host()->get_cname());
260 simcall->issuer->context_->iwannadie = true;
261 if (simcall->issuer->get_host()->is_on())
262 simcall->issuer->exception_ =
263 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
264 /* else, the actor will be killed with no possibility to survive */
268 XBT_DEBUG("ExecImpl::finish(): execution canceled");
269 simcall->issuer->exception_ =
270 std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "Execution Canceled"));
274 XBT_DEBUG("ExecImpl::finish(): execution timeouted");
275 simcall->issuer->exception_ = std::make_exception_ptr(simgrid::TimeoutError(XBT_THROW_POINT, "Timeouted"));
279 xbt_die("Internal error in ExecImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
282 simcall->issuer->waiting_synchro = nullptr;
283 /* Fail the process if the host is down */
284 if (simcall->issuer->get_host()->is_on())
285 SIMIX_simcall_answer(simcall);
287 simcall->issuer->context_->iwannadie = true;
291 ActivityImpl* ExecImpl::migrate(s4u::Host* to)
293 if (not MC_is_active() && not MC_record_replay_is_active()) {
294 resource::Action* old_action = this->surf_action_;
295 resource::Action* new_action = to->pimpl_cpu->execution_start(old_action->get_cost());
296 new_action->set_remains(old_action->get_remains());
297 new_action->set_activity(this);
298 new_action->set_priority(old_action->get_priority());
300 // FIXME: the user-defined bound seem to not be kept by LMM, that seem to overwrite it for the multi-core modeling.
301 // I hope that the user did not provide any.
303 old_action->set_activity(nullptr);
304 old_action->cancel();
306 this->surf_action_ = new_action;
309 on_migration(*this, to);
316 xbt::signal<void(ExecImpl&)> ExecImpl::on_creation;
317 xbt::signal<void(ExecImpl const&)> ExecImpl::on_completion;
318 xbt::signal<void(ExecImpl const&, s4u::Host*)> ExecImpl::on_migration;
320 } // namespace activity
321 } // namespace kernel
322 } // namespace simgrid