1 /* Copyright (c) 2009-2019. 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/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 ActorExt::ActorExt(s4u::ActorPtr actor, s4u::Barrier* finalization_barrier)
23 : finalization_barrier_(finalization_barrier), actor_(actor)
25 mailbox_ = s4u::Mailbox::by_name("SMPI-" + std::to_string(actor_->get_pid()));
26 mailbox_small_ = s4u::Mailbox::by_name("small-" + std::to_string(actor_->get_pid()));
27 mailboxes_mutex_ = s4u::Mutex::create();
28 timer_ = xbt_os_timer_new();
29 state_ = SmpiProcessState::UNINITIALIZED;
31 MC_ignore_heap(timer_, xbt_os_timer_size());
34 if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
35 // TODO: Implement host/process/thread based counters. This implementation
36 // just always takes the values passed via "default", like this:
37 // "default:COUNTER1:COUNTER2:COUNTER3;".
38 auto it = units2papi_setup.find(papi_default_config_name);
39 if (it != units2papi_setup.end()) {
40 papi_event_set_ = it->second.event_set;
41 papi_counter_data_ = it->second.counter_data;
42 XBT_DEBUG("Setting PAPI set for process %li", actor->get_pid());
44 papi_event_set_ = PAPI_NULL;
45 XBT_DEBUG("No PAPI set for process %li", actor->get_pid());
53 if (comm_self_ != MPI_COMM_NULL)
54 simgrid::smpi::Comm::destroy(comm_self_);
55 if (comm_intra_ != MPI_COMM_NULL)
56 simgrid::smpi::Comm::destroy(comm_intra_);
57 xbt_os_timer_free(timer_);
60 void ActorExt::set_data(const char* instance_id)
62 instance_id_ = std::string(instance_id);
63 comm_world_ = smpi_deployment_comm_world(instance_id_);
64 simgrid::s4u::Barrier* barrier = smpi_deployment_finalization_barrier(instance_id_);
65 if (barrier != nullptr) // don't overwrite the current one if the instance has none
66 finalization_barrier_ = barrier;
68 // set the process attached to the mailbox
69 mailbox_small_->set_receiver(actor_);
70 XBT_DEBUG("<%ld> SMPI process has been initialized: %p", actor_->get_pid(), actor_.get());
73 /** @brief Prepares the current process for termination. */
74 void ActorExt::finalize()
76 state_ = SmpiProcessState::FINALIZED;
77 XBT_DEBUG("<%ld> Process left the game", actor_->get_pid());
79 // This leads to an explosion of the search graph which cannot be reduced:
80 if (MC_is_active() || MC_record_replay_is_active())
82 // wait for all pending asynchronous comms to finish
83 finalization_barrier_->wait();
86 /** @brief Check if a process is finalized */
87 int ActorExt::finalized()
89 return (state_ == SmpiProcessState::FINALIZED);
92 /** @brief Check if a process is partially initialized already */
93 int ActorExt::initializing()
95 return (state_ == SmpiProcessState::INITIALIZING);
98 /** @brief Check if a process is initialized */
99 int ActorExt::initialized()
101 // TODO cheinrich: Check if we still need this. This should be a global condition, not for a
102 // single process ... ?
103 return (state_ == SmpiProcessState::INITIALIZED);
106 /** @brief Mark a process as initialized (=MPI_Init called) */
107 void ActorExt::mark_as_initialized()
109 if (state_ != SmpiProcessState::FINALIZED)
110 state_ = SmpiProcessState::INITIALIZED;
113 void ActorExt::set_replaying(bool value)
115 if (state_ != SmpiProcessState::FINALIZED)
119 bool ActorExt::replaying()
124 s4u::ActorPtr ActorExt::get_actor()
130 * @brief Returns a structure that stores the location (filename + linenumber) of the last calls to MPI_* functions.
132 * @see smpi_trace_set_call_location
134 smpi_trace_call_location_t* ActorExt::call_location()
136 return &trace_call_loc_;
139 void ActorExt::set_privatized_region(smpi_privatization_region_t region)
141 privatized_region_ = region;
144 smpi_privatization_region_t ActorExt::privatized_region()
146 return privatized_region_;
149 MPI_Comm ActorExt::comm_world()
151 return comm_world_ == nullptr ? MPI_COMM_NULL : *comm_world_;
154 s4u::MutexPtr ActorExt::mailboxes_mutex()
156 return mailboxes_mutex_;
160 int ActorExt::papi_event_set()
162 return papi_event_set_;
165 papi_counter_t& ActorExt::papi_counters()
167 return papi_counter_data_;
171 xbt_os_timer_t ActorExt::timer()
176 void ActorExt::simulated_start()
178 simulated_ = SIMIX_get_clock();
181 double ActorExt::simulated_elapsed()
183 return SIMIX_get_clock() - simulated_;
186 MPI_Comm ActorExt::comm_self()
188 if (comm_self_ == MPI_COMM_NULL) {
189 MPI_Group group = new Group(1);
190 comm_self_ = new Comm(group, nullptr);
191 group->set_mapping(actor_, 0);
196 MPI_Comm ActorExt::comm_intra()
201 void ActorExt::set_comm_intra(MPI_Comm comm)
206 void ActorExt::set_sampling(int s)
211 int ActorExt::sampling()
216 void ActorExt::init()
218 if (smpi_process_count() == 0) {
219 xbt_die("SimGrid was not initialized properly before entering MPI_Init. Aborting, please check compilation process "
220 "and use smpirun\n");
223 simgrid::s4u::ActorPtr proc = simgrid::s4u::Actor::self();
224 // cheinrich: I'm not sure what the impact of the SMPI_switch_data_segment on this call is. I moved
225 // this up here so that I can set the privatized region before the switch.
226 ActorExt* process = smpi_process_remote(proc);
227 // if we are in MPI_Init and argc handling has already been done.
228 if (process->initialized())
231 if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
232 /* Now using the segment index of this process */
233 process->set_privatized_region(smpi_init_global_memory_segment_process());
234 /* Done at the process's creation */
235 SMPI_switch_data_segment(proc);
238 const char* instance_id = proc->get_property("instance_id");
239 const int rank = xbt_str_parse_int(proc->get_property("rank"), "Cannot parse rank");
241 process->state_ = SmpiProcessState::INITIALIZING;
242 smpi_deployment_register_process(instance_id, rank, proc);
244 process->set_data(instance_id);
247 int ActorExt::get_optind()
251 void ActorExt::set_optind(int new_optind)
253 optind_ = new_optind;
257 } // namespace simgrid