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 simcall->issuer_->simcall_answer();
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->timeout_cb_ = nullptr;
57 simcall->timeout_cb_ = simgrid::simix::Timer::set(SIMIX_get_clock() + timeout, [simcall, execs, count]() {
58 for (size_t i = 0; i < count; i++) {
59 // Remove the first occurence of simcall:
60 auto* exec = execs[i];
61 auto j = boost::range::find(exec->simcalls_, simcall);
62 if (j != exec->simcalls_.end())
63 exec->simcalls_.erase(j);
65 simcall_execution_waitany_for__set__result(simcall, -1);
66 simcall->issuer_->simcall_answer();
70 for (size_t i = 0; i < count; i++) {
71 /* associate this simcall to the the synchro */
72 auto* exec = execs[i];
73 exec->simcalls_.push_back(simcall);
75 /* see if the synchro is already finished */
76 if (exec->state_ != SIMIX_WAITING && exec->state_ != SIMIX_RUNNING) {
89 if (timeout_detector_)
90 timeout_detector_->unref();
91 XBT_DEBUG("Destroy exec %p", this);
94 ExecImpl& ExecImpl::set_host(s4u::Host* host)
96 if (not hosts_.empty())
98 hosts_.push_back(host);
102 ExecImpl& ExecImpl::set_hosts(const std::vector<s4u::Host*>& hosts)
108 ExecImpl& ExecImpl::set_timeout(double timeout)
110 if (timeout > 0 && not MC_is_active() && not MC_record_replay_is_active()) {
111 timeout_detector_ = hosts_.front()->pimpl_cpu->sleep(timeout);
112 timeout_detector_->set_activity(this);
117 ExecImpl& ExecImpl::set_flops_amount(double flops_amount)
119 if (not flops_amounts_.empty())
120 flops_amounts_.clear();
121 flops_amounts_.push_back(flops_amount);
125 ExecImpl& ExecImpl::set_flops_amounts(const std::vector<double>& flops_amounts)
127 flops_amounts_ = flops_amounts;
131 ExecImpl& ExecImpl::set_bytes_amounts(const std::vector<double>& bytes_amounts)
133 bytes_amounts_ = bytes_amounts;
138 ExecImpl* ExecImpl::start()
140 state_ = SIMIX_RUNNING;
141 if (not MC_is_active() && not MC_record_replay_is_active()) {
142 if (hosts_.size() == 1) {
143 surf_action_ = hosts_.front()->pimpl_cpu->execution_start(flops_amounts_.front());
144 surf_action_->set_sharing_penalty(sharing_penalty_);
145 surf_action_->set_category(get_tracing_category());
148 surf_action_->set_bound(bound_);
150 surf_action_ = surf_host_model->execute_parallel(hosts_, flops_amounts_.data(), bytes_amounts_.data(), -1);
152 surf_action_->set_activity(this);
155 XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
159 double ExecImpl::get_seq_remaining_ratio()
161 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains() / surf_action_->get_cost();
164 double ExecImpl::get_par_remaining_ratio()
166 // parallel task: their remain is already between 0 and 1
167 return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains();
170 ExecImpl& ExecImpl::set_bound(double bound)
176 ExecImpl& ExecImpl::set_sharing_penalty(double sharing_penalty)
178 sharing_penalty_ = sharing_penalty;
182 void ExecImpl::post()
184 if (hosts_.size() == 1 && not hosts_.front()->is_on()) { /* FIXME: handle resource failure for parallel tasks too */
185 /* If the host running the synchro failed, notice it. This way, the asking
186 * process can be killed if it runs on that host itself */
187 state_ = SIMIX_FAILED;
188 } else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
189 /* If the host running the synchro didn't fail, then the synchro was canceled */
190 state_ = SIMIX_CANCELED;
191 } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
192 state_ = SIMIX_TIMEOUT;
199 if (timeout_detector_) {
200 timeout_detector_->unref();
201 timeout_detector_ = nullptr;
204 /* Answer all simcalls associated with the synchro */
208 void ExecImpl::finish()
210 while (not simcalls_.empty()) {
211 smx_simcall_t simcall = simcalls_.front();
212 simcalls_.pop_front();
214 /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany
215 * list. Afterwards, get the position of the actual synchro in the waitany list and return it as the result of the
218 if (simcall->call_ == SIMCALL_NONE) // FIXME: maybe a better way to handle this case
219 continue; // if process handling comm is killed
220 if (simcall->call_ == SIMCALL_EXECUTION_WAITANY_FOR) {
221 simgrid::kernel::activity::ExecImpl** execs = simcall_execution_waitany_for__get__execs(simcall);
222 size_t count = simcall_execution_waitany_for__get__count(simcall);
224 for (size_t i = 0; i < count; i++) {
225 // Remove the first occurence of simcall:
226 auto* exec = execs[i];
227 auto j = boost::range::find(exec->simcalls_, simcall);
228 if (j != exec->simcalls_.end())
229 exec->simcalls_.erase(j);
231 if (simcall->timeout_cb_) {
232 simcall->timeout_cb_->remove();
233 simcall->timeout_cb_ = nullptr;
237 if (not MC_is_active() && not MC_record_replay_is_active()) {
238 ExecImpl** element = std::find(execs, execs + count, this);
239 int rank = (element != execs + count) ? element - execs : -1;
240 simcall_execution_waitany_for__set__result(simcall, rank);
247 /* do nothing, synchro done */
248 XBT_DEBUG("ExecImpl::finish(): execution successful");
252 XBT_DEBUG("ExecImpl::finish(): host '%s' failed", simcall->issuer_->get_host()->get_cname());
253 simcall->issuer_->context_->iwannadie = true;
254 if (simcall->issuer_->get_host()->is_on())
255 simcall->issuer_->exception_ =
256 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
257 /* else, the actor will be killed with no possibility to survive */
261 XBT_DEBUG("ExecImpl::finish(): execution canceled");
262 simcall->issuer_->exception_ =
263 std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "Execution Canceled"));
267 XBT_DEBUG("ExecImpl::finish(): execution timeouted");
268 simcall->issuer_->exception_ = std::make_exception_ptr(simgrid::TimeoutException(XBT_THROW_POINT, "Timeouted"));
272 xbt_die("Internal error in ExecImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
275 simcall->issuer_->waiting_synchro = nullptr;
276 /* Fail the process if the host is down */
277 if (simcall->issuer_->get_host()->is_on())
278 simcall->issuer_->simcall_answer();
280 simcall->issuer_->context_->iwannadie = true;
284 ActivityImpl* ExecImpl::migrate(s4u::Host* to)
286 if (not MC_is_active() && not MC_record_replay_is_active()) {
287 resource::Action* old_action = this->surf_action_;
288 resource::Action* new_action = to->pimpl_cpu->execution_start(old_action->get_cost());
289 new_action->set_remains(old_action->get_remains());
290 new_action->set_activity(this);
291 new_action->set_sharing_penalty(old_action->get_sharing_penalty());
293 // FIXME: the user-defined bound seem to not be kept by LMM, that seem to overwrite it for the multi-core modeling.
294 // I hope that the user did not provide any.
296 old_action->set_activity(nullptr);
297 old_action->cancel();
299 this->surf_action_ = new_action;
302 on_migration(*this, to);
309 xbt::signal<void(ExecImpl const&, s4u::Host*)> ExecImpl::on_migration;
311 } // namespace activity
312 } // namespace kernel
313 } // namespace simgrid