1 /* Copyright (c) 2007-2016. 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.h"
8 #include "src/kernel/activity/CommImpl.hpp"
9 #include "src/mc/mc_replay.h"
10 #include "src/plugins/vm/VirtualMachineImpl.hpp"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_host, simix, "SIMIX hosts");
17 simgrid::xbt::Extension<simgrid::s4u::Host, Host> Host::EXTENSION_ID;
21 if (not Host::EXTENSION_ID.valid())
22 Host::EXTENSION_ID = s4u::Host::extension_create<simix::Host>();
24 simgrid::simix::ActorImpl act;
25 process_list = xbt_swag_new(xbt_swag_offset(act, host_proc_hookup));
30 /* Clean Simulator data */
31 if (xbt_swag_size(process_list) != 0) {
32 std::string msg = std::string("Shutting down host, but it's not empty:");
33 smx_actor_t process = nullptr;
35 xbt_swag_foreach(process, process_list) msg = msg + "\n\t" + process->name.c_str();
37 SIMIX_display_process_status();
38 THROWF(arg_error, 0, "%s", msg.c_str());
40 for (auto arg : auto_restart_processes)
42 auto_restart_processes.clear();
43 for (auto arg : boot_processes)
45 boot_processes.clear();
46 xbt_swag_free(process_list);
49 /** Re-starts all the actors that are marked as restartable.
51 * Weird things will happen if you turn on an host that is already on. S4U is fool-proof, not this.
55 for (auto arg : boot_processes) {
56 XBT_DEBUG("Booting Process %s(%s) right now", arg->name.c_str(), arg->host->getCname());
57 smx_actor_t actor = simix_global->create_process_function(arg->name.c_str(), arg->code, nullptr, arg->host,
58 arg->properties, nullptr);
59 if (arg->kill_time >= 0)
60 simcall_process_set_kill_time(actor, arg->kill_time);
61 if (arg->auto_restart)
62 actor->auto_restart = arg->auto_restart;
68 /** @brief Stop the host if it is on */
69 void SIMIX_host_off(sg_host_t h, smx_actor_t issuer)
71 simgrid::simix::Host* host = h->extension<simgrid::simix::Host>();
73 xbt_assert((host != nullptr), "Invalid parameters");
76 h->pimpl_cpu->turnOff();
78 /* Clean Simulator data */
79 if (xbt_swag_size(host->process_list) != 0) {
80 smx_actor_t process = nullptr;
81 xbt_swag_foreach(process, host->process_list) {
82 SIMIX_process_kill(process, issuer);
83 XBT_DEBUG("Killing %s@%s on behalf of %s", process->cname(), process->host->getCname(), issuer->cname());
87 XBT_INFO("Host %s is already off", h->getCname());
91 sg_host_t sg_host_self()
93 smx_actor_t process = SIMIX_process_self();
94 return (process == nullptr) ? nullptr : process->host;
97 /* needs to be public and without simcall for exceptions and logging events */
98 const char* sg_host_self_get_name()
100 sg_host_t host = sg_host_self();
101 if (host == nullptr || SIMIX_process_self() == simix_global->maestro_process)
104 return host->getCname();
108 * \brief Add a process to the list of the processes that the host will restart when it comes back
109 * This function add a process to the list of the processes that will be restarted when the host comes
110 * back. It is expected that this function is called when the host is down.
111 * The processes will only be restarted once, meaning that you will have to register the process
112 * again to restart the process again.
114 void SIMIX_host_add_auto_restart_process(
115 sg_host_t host, const char *name, std::function<void()> code,
116 void* data, double kill_time, xbt_dict_t properties, int auto_restart)
118 smx_process_arg_t arg = new simgrid::simix::ProcessArg();
120 arg->code = std::move(code);
123 arg->kill_time = kill_time;
124 arg->properties = properties;
125 arg->auto_restart = auto_restart;
127 if (host->isOff() && not xbt_dict_get_or_null(watched_hosts_lib, host->getCname())) {
128 xbt_dict_set(watched_hosts_lib, host->getCname(), host, nullptr);
129 XBT_DEBUG("Push host %s to watched_hosts_lib because state == SURF_RESOURCE_OFF", host->getCname());
131 host->extension<simgrid::simix::Host>()->auto_restart_processes.push_back(arg);
133 /** @brief Restart the list of processes that have been registered to the host */
134 void SIMIX_host_autorestart(sg_host_t host)
136 std::vector<simgrid::simix::ProcessArg*> process_list =
137 host->extension<simgrid::simix::Host>()->auto_restart_processes;
139 for (auto arg : process_list) {
140 XBT_DEBUG("Restarting Process %s@%s right now", arg->name.c_str(), arg->host->getCname());
141 smx_actor_t actor = simix_global->create_process_function(arg->name.c_str(), arg->code, nullptr, arg->host,
142 arg->properties, nullptr);
143 if (arg->kill_time >= 0)
144 simcall_process_set_kill_time(actor, arg->kill_time);
145 if (arg->auto_restart)
146 actor->auto_restart = arg->auto_restart;
148 process_list.clear();
151 boost::intrusive_ptr<simgrid::kernel::activity::ExecImpl> simcall_HANDLER_execution_start(smx_simcall_t simcall,
154 double priority, double bound)
156 return SIMIX_execution_start(simcall->issuer, name,flops_amount,priority,bound);
159 boost::intrusive_ptr<simgrid::kernel::activity::ExecImpl>
160 SIMIX_execution_start(smx_actor_t issuer, const char* name, double flops_amount, double priority, double bound)
163 /* alloc structures and initialize */
164 simgrid::kernel::activity::ExecImplPtr exec =
165 simgrid::kernel::activity::ExecImplPtr(new simgrid::kernel::activity::ExecImpl(name, issuer->host));
167 /* set surf's action */
168 if (not MC_is_active() && not MC_record_replay_is_active()) {
170 exec->surf_exec = issuer->host->pimpl_cpu->execution_start(flops_amount);
171 exec->surf_exec->setData(exec.get());
172 exec->surf_exec->setSharingWeight(priority);
175 static_cast<simgrid::surf::CpuAction*>(exec->surf_exec)->setBound(bound);
178 XBT_DEBUG("Create execute synchro %p: %s", exec.get(), exec->name.c_str());
183 boost::intrusive_ptr<simgrid::kernel::activity::ExecImpl>
184 SIMIX_execution_parallel_start(const char* name, int host_nb, sg_host_t* host_list, double* flops_amount,
185 double* bytes_amount, double rate, double timeout)
188 /* alloc structures and initialize */
189 simgrid::kernel::activity::ExecImplPtr exec =
190 simgrid::kernel::activity::ExecImplPtr(new simgrid::kernel::activity::ExecImpl(name, nullptr));
192 /* set surf's synchro */
193 sg_host_t *host_list_cpy = xbt_new0(sg_host_t, host_nb);
194 for (int i = 0; i < host_nb; i++)
195 host_list_cpy[i] = host_list[i];
197 /* Check that we are not mixing VMs and PMs in the parallel task */
198 bool is_a_vm = (nullptr != dynamic_cast<simgrid::s4u::VirtualMachine*>(host_list[0]));
199 for (int i = 1; i < host_nb; i++) {
200 bool tmp_is_a_vm = (nullptr != dynamic_cast<simgrid::s4u::VirtualMachine*>(host_list[i]));
201 xbt_assert(is_a_vm == tmp_is_a_vm, "parallel_execute: mixing VMs and PMs is not supported (yet).");
204 /* set surf's synchro */
205 if (not MC_is_active() && not MC_record_replay_is_active()) {
206 exec->surf_exec = surf_host_model->executeParallelTask(host_nb, host_list_cpy, flops_amount, bytes_amount, rate);
207 exec->surf_exec->setData(exec.get());
209 exec->timeoutDetector = host_list[0]->pimpl_cpu->sleep(timeout);
210 exec->timeoutDetector->setData(exec.get());
213 XBT_DEBUG("Create parallel execute synchro %p", exec.get());
218 void SIMIX_execution_cancel(smx_activity_t synchro)
220 XBT_DEBUG("Cancel synchro %p", synchro.get());
221 simgrid::kernel::activity::ExecImplPtr exec =
222 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(synchro);
225 exec->surf_exec->cancel();
228 void SIMIX_execution_set_priority(smx_activity_t synchro, double priority)
230 simgrid::kernel::activity::ExecImplPtr exec =
231 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(synchro);
233 exec->surf_exec->setSharingWeight(priority);
236 void SIMIX_execution_set_bound(smx_activity_t synchro, double bound)
238 simgrid::kernel::activity::ExecImplPtr exec =
239 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(synchro);
241 static_cast<simgrid::surf::CpuAction*>(exec->surf_exec)->setBound(bound);
244 void simcall_HANDLER_execution_wait(smx_simcall_t simcall, smx_activity_t synchro)
246 simgrid::kernel::activity::ExecImplPtr exec =
247 boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(synchro);
248 XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro.get(), (int)synchro->state);
250 /* Associate this simcall to the synchro */
251 synchro->simcalls.push_back(simcall);
252 simcall->issuer->waiting_synchro = synchro;
254 /* set surf's synchro */
255 if (MC_is_active() || MC_record_replay_is_active()) {
256 synchro->state = SIMIX_DONE;
257 SIMIX_execution_finish(exec);
261 /* If the synchro is already finished then perform the error handling */
262 if (synchro->state != SIMIX_RUNNING)
263 SIMIX_execution_finish(exec);
266 void SIMIX_execution_finish(simgrid::kernel::activity::ExecImplPtr exec)
268 for (smx_simcall_t simcall : exec->simcalls) {
269 switch (exec->state) {
272 /* do nothing, synchro done */
273 XBT_DEBUG("SIMIX_execution_finished: execution successful");
277 XBT_DEBUG("SIMIX_execution_finished: host '%s' failed", simcall->issuer->host->getCname());
278 simcall->issuer->context->iwannadie = 1;
279 SMX_EXCEPTION(simcall->issuer, host_error, 0, "Host failed");
283 XBT_DEBUG("SIMIX_execution_finished: execution canceled");
284 SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
288 XBT_DEBUG("SIMIX_execution_finished: execution timeouted");
289 SMX_EXCEPTION(simcall->issuer, timeout_error, 0, "Timeouted");
293 xbt_die("Internal error in SIMIX_execution_finish: unexpected synchro state %d",
296 /* Fail the process if the host is down */
297 if (simcall->issuer->host->isOff())
298 simcall->issuer->context->iwannadie = 1;
300 simcall->issuer->waiting_synchro = nullptr;
301 simcall_execution_wait__set__result(simcall, exec->state);
302 SIMIX_simcall_answer(simcall);
306 void SIMIX_set_category(smx_activity_t synchro, const char *category)
308 if (synchro->state != SIMIX_RUNNING)
311 simgrid::kernel::activity::ExecImplPtr exec =
312 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(synchro);
313 if (exec != nullptr) {
314 exec->surf_exec->setCategory(category);
318 simgrid::kernel::activity::CommImplPtr comm =
319 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro);
320 if (comm != nullptr) {
321 comm->surf_comm->setCategory(category);