1 /* Copyright (c) 2009-2018. 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. */
6 #include "src/smpi/include/smpi_actor.hpp"
8 #include "smpi_comm.hpp"
9 #include "src/mc/mc_replay.hpp"
10 #include "src/simix/smx_private.hpp"
14 extern std::string papi_default_config_name;
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_process, smpi, "Logging specific to SMPI (kernel)");
22 using simgrid::s4u::Actor;
23 using simgrid::s4u::ActorPtr;
25 ActorExt::ActorExt(ActorPtr actor, simgrid::s4u::Barrier* finalization_barrier)
26 : finalization_barrier_(finalization_barrier), actor_(actor)
28 mailbox_ = simgrid::s4u::Mailbox::by_name("SMPI-" + std::to_string(actor_->get_pid()));
29 mailbox_small_ = simgrid::s4u::Mailbox::by_name("small-" + std::to_string(actor_->get_pid()));
30 mailboxes_mutex_ = xbt_mutex_init();
31 timer_ = xbt_os_timer_new();
32 state_ = SmpiProcessState::UNINITIALIZED;
34 MC_ignore_heap(timer_, xbt_os_timer_size());
37 if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
38 // TODO: Implement host/process/thread based counters. This implementation
39 // just always takes the values passed via "default", like this:
40 // "default:COUNTER1:COUNTER2:COUNTER3;".
41 auto it = units2papi_setup.find(papi_default_config_name);
42 if (it != units2papi_setup.end()) {
43 papi_event_set_ = it->second.event_set;
44 papi_counter_data_ = it->second.counter_data;
45 XBT_DEBUG("Setting PAPI set for process %li", actor->get_pid());
47 papi_event_set_ = PAPI_NULL;
48 XBT_DEBUG("No PAPI set for process %li", actor->get_pid());
56 if (comm_self_ != MPI_COMM_NULL)
57 simgrid::smpi::Comm::destroy(comm_self_);
58 if (comm_intra_ != MPI_COMM_NULL)
59 simgrid::smpi::Comm::destroy(comm_intra_);
60 xbt_os_timer_free(timer_);
61 xbt_mutex_destroy(mailboxes_mutex_);
64 void ActorExt::set_data(int* argc, char*** argv)
66 instance_id_ = std::string((*argv)[1]);
67 comm_world_ = smpi_deployment_comm_world(instance_id_);
68 simgrid::s4u::Barrier* barrier = smpi_deployment_finalization_barrier(instance_id_);
69 if (barrier != nullptr) // don't overwrite the current one if the instance has none
70 finalization_barrier_ = barrier;
73 memmove(&(*argv)[0], &(*argv)[2], sizeof(char*) * (*argc - 2));
74 (*argv)[(*argc) - 1] = nullptr;
75 (*argv)[(*argc) - 2] = nullptr;
80 // set the process attached to the mailbox
81 mailbox_small_->set_receiver(actor_);
82 XBT_DEBUG("<%ld> SMPI process has been initialized: %p", actor_->get_pid(), actor_.get());
85 /** @brief Prepares the current process for termination. */
86 void ActorExt::finalize()
88 state_ = SmpiProcessState::FINALIZED;
89 XBT_DEBUG("<%ld> Process left the game", actor_->get_pid());
91 // This leads to an explosion of the search graph which cannot be reduced:
92 if (MC_is_active() || MC_record_replay_is_active())
94 // wait for all pending asynchronous comms to finish
95 finalization_barrier_->wait();
98 /** @brief Check if a process is finalized */
99 int ActorExt::finalized()
101 return (state_ == SmpiProcessState::FINALIZED);
104 /** @brief Check if a process is initialized */
105 int ActorExt::initialized()
107 // TODO cheinrich: Check if we still need this. This should be a global condition, not for a
108 // single process ... ?
109 return (state_ == SmpiProcessState::INITIALIZED);
112 /** @brief Mark a process as initialized (=MPI_Init called) */
113 void ActorExt::mark_as_initialized()
115 if (state_ != SmpiProcessState::FINALIZED)
116 state_ = SmpiProcessState::INITIALIZED;
119 void ActorExt::set_replaying(bool value)
121 if (state_ != SmpiProcessState::FINALIZED)
125 bool ActorExt::replaying()
130 void ActorExt::set_user_data(void* data)
135 void* ActorExt::get_user_data()
140 ActorPtr ActorExt::get_actor()
146 * \brief Returns a structure that stores the location (filename + linenumber) of the last calls to MPI_* functions.
148 * \see smpi_trace_set_call_location
150 smpi_trace_call_location_t* ActorExt::call_location()
152 return &trace_call_loc_;
155 void ActorExt::set_privatized_region(smpi_privatization_region_t region)
157 privatized_region_ = region;
160 smpi_privatization_region_t ActorExt::privatized_region()
162 return privatized_region_;
165 MPI_Comm ActorExt::comm_world()
167 return comm_world_ == nullptr ? MPI_COMM_NULL : *comm_world_;
170 smx_mailbox_t ActorExt::mailbox()
172 return mailbox_->get_impl();
175 smx_mailbox_t ActorExt::mailbox_small()
177 return mailbox_small_->get_impl();
180 xbt_mutex_t ActorExt::mailboxes_mutex()
182 return mailboxes_mutex_;
186 int ActorExt::papi_event_set()
188 return papi_event_set_;
191 papi_counter_t& ActorExt::papi_counters()
193 return papi_counter_data_;
197 xbt_os_timer_t ActorExt::timer()
202 void ActorExt::simulated_start()
204 simulated_ = SIMIX_get_clock();
207 double ActorExt::simulated_elapsed()
209 return SIMIX_get_clock() - simulated_;
212 MPI_Comm ActorExt::comm_self()
214 if (comm_self_ == MPI_COMM_NULL) {
215 MPI_Group group = new Group(1);
216 comm_self_ = new Comm(group, nullptr);
217 group->set_mapping(actor_, 0);
222 MPI_Comm ActorExt::comm_intra()
227 void ActorExt::set_comm_intra(MPI_Comm comm)
232 void ActorExt::set_sampling(int s)
237 int ActorExt::sampling()
242 void ActorExt::init(int* argc, char*** argv)
245 if (smpi_process_count() == 0) {
246 xbt_die("SimGrid was not initialized properly before entering MPI_Init. Aborting, please check compilation process "
247 "and use smpirun\n");
249 if (argc != nullptr && argv != nullptr) {
250 simgrid::s4u::ActorPtr proc = simgrid::s4u::Actor::self();
251 proc->get_impl()->context_->set_cleanup(&SIMIX_process_cleanup);
253 char* instance_id = (*argv)[1];
255 int rank = std::stoi(std::string((*argv)[2]));
256 smpi_deployment_register_process(instance_id, rank, proc);
257 } catch (std::invalid_argument& ia) {
258 throw std::invalid_argument(std::string("Invalid rank: ") + (*argv)[2]);
261 // cheinrich: I'm not sure what the impact of the SMPI_switch_data_segment on this call is. I moved
262 // this up here so that I can set the privatized region before the switch.
263 ActorExt* process = smpi_process_remote(proc);
264 if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
265 /* Now using the segment index of this process */
266 process->set_privatized_region(smpi_init_global_memory_segment_process());
267 /* Done at the process's creation */
268 SMPI_switch_data_segment(proc);
271 process->set_data(argc, argv);
273 xbt_assert(smpi_process(), "smpi_process() returned nullptr. You probably gave a nullptr parameter to MPI_Init. "
274 "Although it's required by MPI-2, this is currently not supported by SMPI. "
275 "Please use MPI_Init(&argc, &argv) as usual instead.");
278 int ActorExt::get_optind()
282 void ActorExt::set_optind(int new_optind)
288 } // namespace simgrid