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 "smpi_process.hpp"
8 #include "smpi_comm.hpp"
9 #include "src/mc/mc_replay.hpp"
10 #include "src/msg/msg_private.hpp"
11 #include "src/simix/smx_private.hpp"
15 extern std::string papi_default_config_name;
18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_process, smpi, "Logging specific to SMPI (kernel)");
23 using simgrid::s4u::Actor;
24 using simgrid::s4u::ActorPtr;
26 Process::Process(ActorPtr actor, simgrid::s4u::Barrier* finalization_barrier)
27 : finalization_barrier_(finalization_barrier), actor_(actor)
29 mailbox_ = simgrid::s4u::Mailbox::by_name("SMPI-" + std::to_string(actor_->get_pid()));
30 mailbox_small_ = simgrid::s4u::Mailbox::by_name("small-" + std::to_string(actor_->get_pid()));
31 mailboxes_mutex_ = xbt_mutex_init();
32 timer_ = xbt_os_timer_new();
33 state_ = SmpiProcessState::UNINITIALIZED;
35 MC_ignore_heap(timer_, xbt_os_timer_size());
38 if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
39 // TODO: Implement host/process/thread based counters. This implementation
40 // just always takes the values passed via "default", like this:
41 // "default:COUNTER1:COUNTER2:COUNTER3;".
42 auto it = units2papi_setup.find(papi_default_config_name);
43 if (it != units2papi_setup.end()) {
44 papi_event_set_ = it->second.event_set;
45 papi_counter_data_ = it->second.counter_data;
46 XBT_DEBUG("Setting PAPI set for process %li", actor->get_pid());
48 papi_event_set_ = PAPI_NULL;
49 XBT_DEBUG("No PAPI set for process %li", actor->get_pid());
57 if (comm_self_ != MPI_COMM_NULL)
58 simgrid::smpi::Comm::destroy(comm_self_);
59 if (comm_intra_ != MPI_COMM_NULL)
60 simgrid::smpi::Comm::destroy(comm_intra_);
61 xbt_os_timer_free(timer_);
62 xbt_mutex_destroy(mailboxes_mutex_);
65 void Process::set_data(int* argc, char*** argv)
67 instance_id_ = std::string((*argv)[1]);
68 comm_world_ = smpi_deployment_comm_world(instance_id_);
69 simgrid::s4u::Barrier* barrier = smpi_deployment_finalization_barrier(instance_id_);
70 if (barrier != nullptr) // don't overwrite the current one if the instance has none
71 finalization_barrier_ = barrier;
73 static_cast<simgrid::msg::ActorExt*>(actor_->get_impl()->get_user_data())->data = this;
76 memmove(&(*argv)[0], &(*argv)[2], sizeof(char*) * (*argc - 2));
77 (*argv)[(*argc) - 1] = nullptr;
78 (*argv)[(*argc) - 2] = nullptr;
83 // set the process attached to the mailbox
84 mailbox_small_->set_receiver(actor_);
85 XBT_DEBUG("<%ld> SMPI process has been initialized: %p", actor_->get_pid(), actor_.get());
88 /** @brief Prepares the current process for termination. */
89 void Process::finalize()
91 state_ = SmpiProcessState::FINALIZED;
92 XBT_DEBUG("<%ld> Process left the game", actor_->get_pid());
94 // This leads to an explosion of the search graph which cannot be reduced:
95 if(MC_is_active() || MC_record_replay_is_active())
97 // wait for all pending asynchronous comms to finish
98 finalization_barrier_->wait();
101 /** @brief Check if a process is finalized */
102 int Process::finalized()
104 return (state_ == SmpiProcessState::FINALIZED);
107 /** @brief Check if a process is initialized */
108 int Process::initialized()
110 // TODO cheinrich: Check if we still need this. This should be a global condition, not for a
111 // single process ... ?
112 return (state_ == SmpiProcessState::INITIALIZED);
115 /** @brief Mark a process as initialized (=MPI_Init called) */
116 void Process::mark_as_initialized()
118 if (state_ != SmpiProcessState::FINALIZED)
119 state_ = SmpiProcessState::INITIALIZED;
122 void Process::set_replaying(bool value){
123 if (state_ != SmpiProcessState::FINALIZED)
127 bool Process::replaying(){
131 void Process::set_user_data(void *data)
136 void *Process::get_user_data()
141 ActorPtr Process::get_actor()
147 * \brief Returns a structure that stores the location (filename + linenumber) of the last calls to MPI_* functions.
149 * \see smpi_trace_set_call_location
151 smpi_trace_call_location_t* Process::call_location()
153 return &trace_call_loc_;
156 void Process::set_privatized_region(smpi_privatization_region_t region)
158 privatized_region_ = region;
161 smpi_privatization_region_t Process::privatized_region()
163 return privatized_region_;
166 MPI_Comm Process::comm_world()
168 return comm_world_==nullptr ? MPI_COMM_NULL : *comm_world_;
171 smx_mailbox_t Process::mailbox()
173 return mailbox_->get_impl();
176 smx_mailbox_t Process::mailbox_small()
178 return mailbox_small_->get_impl();
181 xbt_mutex_t Process::mailboxes_mutex()
183 return mailboxes_mutex_;
187 int Process::papi_event_set()
189 return papi_event_set_;
192 papi_counter_t& Process::papi_counters()
194 return papi_counter_data_;
198 xbt_os_timer_t Process::timer()
203 void Process::simulated_start()
205 simulated_ = SIMIX_get_clock();
208 double Process::simulated_elapsed()
210 return SIMIX_get_clock() - simulated_;
213 MPI_Comm Process::comm_self()
215 if(comm_self_==MPI_COMM_NULL){
216 MPI_Group group = new Group(1);
217 comm_self_ = new Comm(group, nullptr);
218 group->set_mapping(actor_, 0);
223 MPI_Comm Process::comm_intra()
228 void Process::set_comm_intra(MPI_Comm comm)
233 void Process::set_sampling(int s)
238 int Process::sampling()
243 void Process::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 and use smpirun\n");
248 if (argc != nullptr && argv != nullptr) {
249 simgrid::s4u::ActorPtr proc = simgrid::s4u::Actor::self();
250 proc->get_impl()->context_->set_cleanup(&MSG_process_cleanup_from_SIMIX);
252 char* instance_id = (*argv)[1];
254 int rank = std::stoi(std::string((*argv)[2]));
255 smpi_deployment_register_process(instance_id, rank, proc);
256 } catch (std::invalid_argument& ia) {
257 throw std::invalid_argument(std::string("Invalid rank: ") + (*argv)[2]);
260 // cheinrich: I'm not sure what the impact of the SMPI_switch_data_segment on this call is. I moved
261 // this up here so that I can set the privatized region before the switch.
262 Process* process = smpi_process_remote(proc);
263 if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
264 /* Now using the segment index of this process */
265 process->set_privatized_region(smpi_init_global_memory_segment_process());
266 /* Done at the process's creation */
267 SMPI_switch_data_segment(proc);
270 process->set_data(argc, argv);
272 xbt_assert(smpi_process(), "smpi_process() returned nullptr. You probably gave a nullptr parameter to MPI_Init. "
273 "Although it's required by MPI-2, this is currently not supported by SMPI. "
274 "Please use MPI_Init(&argc, &argv) as usual instead.");
277 int Process::get_optind(){
280 void Process::set_optind(int new_optind){