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let base class dtor deal with surf action
[simgrid.git] / src / kernel / activity / ExecImpl.cpp
1 /* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved.          */
2
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. */
5
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"
13
14 #include "simgrid/s4u/Host.hpp"
15
16 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_process);
17
18 void simcall_HANDLER_execution_wait(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro)
19 {
20   XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_);
21
22   /* Associate this simcall to the synchro */
23   synchro->simcalls_.push_back(simcall);
24   simcall->issuer->waiting_synchro = synchro;
25
26   /* set surf's synchro */
27   if (MC_is_active() || MC_record_replay_is_active()) {
28     synchro->state_ = SIMIX_DONE;
29     synchro->finish();
30     return;
31   }
32
33   /* If the synchro is already finished then perform the error handling */
34   if (synchro->state_ != SIMIX_RUNNING)
35     synchro->finish();
36 }
37
38 void simcall_HANDLER_execution_test(smx_simcall_t simcall, simgrid::kernel::activity::ExecImpl* synchro)
39 {
40   int res = (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING);
41   if (res) {
42     synchro->simcalls_.push_back(simcall);
43     synchro->finish();
44   } else {
45     SIMIX_simcall_answer(simcall);
46   }
47   simcall_execution_test__set__result(simcall, res);
48 }
49
50 namespace simgrid {
51 namespace kernel {
52 namespace activity {
53
54 ExecImpl::ExecImpl(const std::string& name, const std::string& tracing_category) : ActivityImpl(name)
55 {
56   this->state_ = SIMIX_RUNNING;
57   this->set_category(tracing_category);
58
59   XBT_DEBUG("Create exec %p", this);
60 }
61
62 ExecImpl::~ExecImpl()
63 {
64   if (timeout_detector_)
65     timeout_detector_->unref();
66   XBT_DEBUG("Destroy exec %p", this);
67 }
68
69 ExecImpl* ExecImpl::set_host(s4u::Host* host)
70 {
71   host_ = host;
72   return this;
73 }
74
75 ExecImpl* ExecImpl::set_timeout(double timeout)
76 {
77   if (timeout > 0 && not MC_is_active() && not MC_record_replay_is_active()) {
78     timeout_detector_ = host_->pimpl_cpu->sleep(timeout);
79     timeout_detector_->set_data(this);
80   }
81   return this;
82 }
83
84 ExecImpl* ExecImpl::start(double flops_amount, double priority, double bound)
85 {
86   if (not MC_is_active() && not MC_record_replay_is_active()) {
87     surf_action_ = host_->pimpl_cpu->execution_start(flops_amount);
88     surf_action_->set_data(this);
89     surf_action_->set_priority(priority);
90     if (bound > 0)
91       surf_action_->set_bound(bound);
92   }
93
94   XBT_DEBUG("Create execute synchro %p: %s", this, get_cname());
95   ExecImpl::on_creation(this);
96   return this;
97 }
98
99 ExecImpl* ExecImpl::start(const std::vector<s4u::Host*>& hosts, const std::vector<double>& flops_amounts,
100                           const std::vector<double>& bytes_amounts)
101 {
102   /* set surf's synchro */
103   if (not MC_is_active() && not MC_record_replay_is_active()) {
104     surf_action_ = surf_host_model->execute_parallel(hosts, flops_amounts.data(), bytes_amounts.data(), -1);
105     if (surf_action_ != nullptr) {
106       surf_action_->set_data(this);
107     }
108   }
109   XBT_DEBUG("Create parallel execute synchro %p", this);
110   ExecImpl::on_creation(this);
111   return this;
112 }
113 void ExecImpl::cancel()
114 {
115   XBT_VERB("This exec %p is canceled", this);
116   if (surf_action_ != nullptr)
117     surf_action_->cancel();
118 }
119
120 double ExecImpl::get_remaining()
121 {
122   return surf_action_ ? surf_action_->get_remains() : 0;
123 }
124
125 double ExecImpl::get_seq_remaining_ratio()
126 {
127   return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains() / surf_action_->get_cost();
128 }
129
130 double ExecImpl::get_par_remaining_ratio()
131 {
132   // parallel task: their remain is already between 0 and 1
133   return (surf_action_ == nullptr) ? 0 : surf_action_->get_remains();
134 }
135
136 void ExecImpl::set_bound(double bound)
137 {
138   if (surf_action_)
139     surf_action_->set_bound(bound);
140 }
141 void ExecImpl::set_priority(double priority)
142 {
143   if (surf_action_)
144     surf_action_->set_priority(priority);
145 }
146
147 void ExecImpl::post()
148 {
149   if (host_ && not host_->is_on()) { /* FIXME: handle resource failure for parallel tasks too */
150     /* If the host running the synchro failed, notice it. This way, the asking
151      * process can be killed if it runs on that host itself */
152     state_ = SIMIX_FAILED;
153   } else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
154     /* If the host running the synchro didn't fail, then the synchro was canceled */
155     state_ = SIMIX_CANCELED;
156   } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
157     state_ = SIMIX_TIMEOUT;
158   } else {
159     state_ = SIMIX_DONE;
160   }
161
162   on_completion(this);
163
164   if (surf_action_) {
165     surf_action_->unref();
166     surf_action_ = nullptr;
167   }
168   if (timeout_detector_) {
169     timeout_detector_->unref();
170     timeout_detector_ = nullptr;
171   }
172
173   /* If there are simcalls associated with the synchro, then answer them */
174   if (not simcalls_.empty())
175     finish();
176 }
177
178 void ExecImpl::finish()
179 {
180   while (not simcalls_.empty()) {
181     smx_simcall_t simcall = simcalls_.front();
182     simcalls_.pop_front();
183     switch (state_) {
184
185       case SIMIX_DONE:
186         /* do nothing, synchro done */
187         XBT_DEBUG("ExecImpl::finish(): execution successful");
188         break;
189
190       case SIMIX_FAILED:
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 */
197         break;
198
199       case SIMIX_CANCELED:
200         XBT_DEBUG("ExecImpl::finish(): execution canceled");
201         simcall->issuer->exception_ =
202             std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "Execution Canceled"));
203         break;
204
205       case SIMIX_TIMEOUT:
206         XBT_DEBUG("ExecImpl::finish(): execution timeouted");
207         simcall->issuer->exception_ = std::make_exception_ptr(simgrid::TimeoutError(XBT_THROW_POINT, "Timeouted"));
208         break;
209
210       default:
211         xbt_die("Internal error in ExecImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
212     }
213
214     simcall->issuer->waiting_synchro = nullptr;
215     simcall_execution_wait__set__result(simcall, state_);
216
217     /* Fail the process if the host is down */
218     if (simcall->issuer->get_host()->is_on())
219       SIMIX_simcall_answer(simcall);
220     else
221       simcall->issuer->context_->iwannadie = true;
222   }
223 }
224
225 ActivityImpl* ExecImpl::migrate(s4u::Host* to)
226 {
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_data(this);
232     new_action->set_priority(old_action->get_priority());
233
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.
236
237     old_action->set_data(nullptr);
238     old_action->cancel();
239     old_action->unref();
240     this->surf_action_ = new_action;
241   }
242
243   on_migration(this, to);
244   return this;
245 }
246
247 /*************
248  * Callbacks *
249  *************/
250 xbt::signal<void(ExecImplPtr)> ExecImpl::on_creation;
251 xbt::signal<void(ExecImplPtr)> ExecImpl::on_completion;
252 xbt::signal<void(ExecImplPtr, s4u::Host*)> ExecImpl::on_migration;
253
254 } // namespace activity
255 } // namespace kernel
256 } // namespace simgrid