1 /* Copyright (c) 2007-2018. 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. */
7 #include "smx_private.hpp"
8 #include "src/kernel/activity/CommImpl.hpp"
9 #include "src/kernel/activity/ExecImpl.hpp"
10 #include "src/mc/mc_replay.hpp"
11 #include "src/plugins/vm/VirtualMachineImpl.hpp"
12 #include "src/simix/smx_host_private.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_host, simix, "SIMIX hosts");
17 /* needs to be public and without simcall for exceptions and logging events */
18 const char* sg_host_self_get_name()
20 sg_host_t host = sg_host_self();
21 if (host == nullptr || SIMIX_process_self() == simix_global->maestro_process)
24 return host->get_cname();
28 * @brief Add a process to the list of the processes that the host will restart when it comes back
29 * This function add a process to the list of the processes that will be restarted when the host comes
30 * back. It is expected that this function is called when the host is down.
31 * The processes will only be restarted once, meaning that you will have to register the process
32 * again to restart the process again.
34 void SIMIX_host_add_auto_restart_process(sg_host_t host, simgrid::kernel::actor::ActorImpl* actor)
36 simgrid::kernel::actor::ProcessArg* arg = new simgrid::kernel::actor::ProcessArg(host, actor);
38 if (host->is_off() && watched_hosts.find(host->get_cname()) == watched_hosts.end()) {
39 watched_hosts.insert(host->get_cname());
40 XBT_DEBUG("Push host %s to watched_hosts because state == SURF_RESOURCE_OFF", host->get_cname());
42 XBT_DEBUG("Adding Process %s to the auto-restart list of Host %s", arg->name.c_str(), arg->host->get_cname());
43 host->pimpl_->auto_restart_processes_.push_back(arg);
46 /** @brief Restart the list of processes that have been registered to the host */
47 void SIMIX_host_autorestart(sg_host_t host)
49 std::vector<simgrid::kernel::actor::ProcessArg*> process_list = host->pimpl_->auto_restart_processes_;
51 for (auto const& arg : process_list) {
52 XBT_DEBUG("Restarting Process %s@%s right now", arg->name.c_str(), arg->host->get_cname());
53 smx_actor_t actor = simix_global->create_process_function(arg->name.c_str(), arg->code, nullptr, arg->host,
54 arg->properties.get(), nullptr);
55 if (arg->kill_time >= 0)
56 simcall_process_set_kill_time(actor, arg->kill_time);
57 if (arg->auto_restart)
58 actor->auto_restart_ = arg->auto_restart;
63 simgrid::kernel::activity::ExecImplPtr SIMIX_execution_start(std::string name, std::string category,
64 double flops_amount, double priority, double bound,
67 /* set surf's action */
68 simgrid::kernel::resource::Action* surf_action = nullptr;
69 if (not MC_is_active() && not MC_record_replay_is_active()) {
70 surf_action = host->pimpl_cpu->execution_start(flops_amount);
71 surf_action->set_priority(priority);
73 surf_action->set_bound(bound);
76 simgrid::kernel::activity::ExecImplPtr exec = simgrid::kernel::activity::ExecImplPtr(
77 new simgrid::kernel::activity::ExecImpl(name, surf_action, /*timeout_detector*/ nullptr, host));
79 exec->set_category(name);
80 XBT_DEBUG("Create execute synchro %p: %s", exec.get(), exec->name_.c_str());
81 simgrid::kernel::activity::ExecImpl::on_creation(exec);
86 simgrid::kernel::activity::ExecImplPtr SIMIX_execution_parallel_start(std::string name, int host_nb,
87 sg_host_t* host_list, double* flops_amount,
88 double* bytes_amount, double rate, double timeout)
91 /* Check that we are not mixing VMs and PMs in the parallel task */
92 bool is_a_vm = (nullptr != dynamic_cast<simgrid::s4u::VirtualMachine*>(host_list[0]));
93 for (int i = 1; i < host_nb; i++) {
94 bool tmp_is_a_vm = (nullptr != dynamic_cast<simgrid::s4u::VirtualMachine*>(host_list[i]));
95 xbt_assert(is_a_vm == tmp_is_a_vm, "parallel_execute: mixing VMs and PMs is not supported (yet).");
98 /* set surf's synchro */
99 simgrid::kernel::resource::Action* surf_action = nullptr;
100 simgrid::kernel::resource::Action* timeout_detector = nullptr;
101 if (not MC_is_active() && not MC_record_replay_is_active()) {
102 sg_host_t* host_list_cpy = new sg_host_t[host_nb];
103 std::copy_n(host_list, host_nb, host_list_cpy);
104 surf_action = surf_host_model->execute_parallel(host_nb, host_list_cpy, flops_amount, bytes_amount, rate);
106 timeout_detector = host_list[0]->pimpl_cpu->sleep(timeout);
110 simgrid::kernel::activity::ExecImplPtr exec = simgrid::kernel::activity::ExecImplPtr(
111 new simgrid::kernel::activity::ExecImpl(name, surf_action, timeout_detector, nullptr));
113 XBT_DEBUG("Create parallel execute synchro %p", exec.get());
118 void simcall_HANDLER_execution_wait(smx_simcall_t simcall, smx_activity_t synchro)
120 XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro.get(), (int)synchro->state_);
122 /* Associate this simcall to the synchro */
123 synchro->simcalls_.push_back(simcall);
124 simcall->issuer->waiting_synchro = synchro;
126 /* set surf's synchro */
127 if (MC_is_active() || MC_record_replay_is_active()) {
128 synchro->state_ = SIMIX_DONE;
129 SIMIX_execution_finish(synchro);
133 /* If the synchro is already finished then perform the error handling */
134 if (synchro->state_ != SIMIX_RUNNING)
135 SIMIX_execution_finish(synchro);
138 void simcall_HANDLER_execution_test(smx_simcall_t simcall, smx_activity_t synchro)
140 int res = (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING);
142 synchro->simcalls_.push_back(simcall);
143 SIMIX_execution_finish(synchro);
145 SIMIX_simcall_answer(simcall);
147 simcall_execution_test__set__result(simcall, res);
150 void SIMIX_execution_finish(smx_activity_t synchro)
152 simgrid::kernel::activity::ExecImplPtr exec =
153 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(synchro);
155 while (not synchro->simcalls_.empty()) {
156 smx_simcall_t simcall = synchro->simcalls_.front();
157 synchro->simcalls_.pop_front();
158 switch (exec->state_) {
161 /* do nothing, synchro done */
162 XBT_DEBUG("SIMIX_execution_finished: execution successful");
166 XBT_DEBUG("SIMIX_execution_finished: host '%s' failed", simcall->issuer->host_->get_cname());
167 simcall->issuer->context_->iwannadie = 1;
168 SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
172 XBT_DEBUG("SIMIX_execution_finished: execution canceled");
173 SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
177 XBT_DEBUG("SIMIX_execution_finished: execution timeouted");
178 SMX_EXCEPTION(simcall->issuer, timeout_error, 0, "Timeouted");
182 xbt_die("Internal error in SIMIX_execution_finish: unexpected synchro state %d", (int)exec->state_);
184 /* Fail the process if the host is down */
185 if (simcall->issuer->host_->is_off())
186 simcall->issuer->context_->iwannadie = 1;
188 simcall->issuer->waiting_synchro = nullptr;
189 simcall_execution_wait__set__result(simcall, exec->state_);
190 SIMIX_simcall_answer(simcall);
194 void SIMIX_set_category(smx_activity_t synchro, std::string category)
196 if (synchro->state_ != SIMIX_RUNNING)
199 simgrid::kernel::activity::ExecImplPtr exec =
200 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(synchro);
201 if (exec != nullptr) {
202 exec->surf_action_->set_category(category);
206 simgrid::kernel::activity::CommImplPtr comm =
207 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro);
208 if (comm != nullptr) {
209 comm->surfAction_->set_category(category);