src/smpi/internals/smpi_actor.cpp

   1 /* Copyright (c) 2009-2019. The SimGrid Team. All rights reserved.          */
   2
   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. */
   5
   6 #include "src/smpi/include/smpi_actor.hpp"
   7 #include "mc/mc.h"
   8 #include "smpi_comm.hpp"
   9 #include "smpi_info.hpp"
  10 #include "src/mc/mc_replay.hpp"
  11 #include "src/simix/smx_private.hpp"
  12
  13 #if HAVE_PAPI
  14 #include "papi.h"
  15 extern std::string papi_default_config_name;
  16 #endif
  17
  18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_process, smpi, "Logging specific to SMPI (kernel)");
  19
  20 namespace simgrid {
  21 namespace smpi {
  22
  23 ActorExt::ActorExt(s4u::ActorPtr actor) : actor_(actor)
  24 {
  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;
  30   info_env_        = MPI_INFO_NULL;
  31   if (MC_is_active())
  32     MC_ignore_heap(timer_, xbt_os_timer_size());
  33
  34 #if HAVE_PAPI
  35   if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
  36     // TODO: Implement host/process/thread based counters. This implementation
  37     // just always takes the values passed via "default", like this:
  38     // "default:COUNTER1:COUNTER2:COUNTER3;".
  39     auto it = units2papi_setup.find(papi_default_config_name);
  40     if (it != units2papi_setup.end()) {
  41       papi_event_set_    = it->second.event_set;
  42       papi_counter_data_ = it->second.counter_data;
  43       XBT_DEBUG("Setting PAPI set for process %li", actor->get_pid());
  44     } else {
  45       papi_event_set_ = PAPI_NULL;
  46       XBT_DEBUG("No PAPI set for process %li", actor->get_pid());
  47     }
  48   }
  49 #endif
  50 }
  51
  52 ActorExt::~ActorExt()
  53 {
  54   TRACE_smpi_finalize(actor_->get_pid());
  55
  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 }
  62
  63 /** @brief Prepares the current process for termination. */
  64 void ActorExt::finalize()
  65 {
  66   state_ = SmpiProcessState::FINALIZED;
  67   XBT_DEBUG("<%ld> Process left the game", actor_->get_pid());
  68
  69   smpi_deployment_unregister_process(instance_id_);
  70 }
  71
  72 /** @brief Check if a process is finalized */
  73 int ActorExt::finalized()
  74 {
  75   return (state_ == SmpiProcessState::FINALIZED);
  76 }
  77
  78 /** @brief Check if a process is partially initialized already */
  79 int ActorExt::initializing()
  80 {
  81   return (state_ == SmpiProcessState::INITIALIZING);
  82 }
  83
  84 /** @brief Check if a process is initialized */
  85 int ActorExt::initialized()
  86 {
  87   // TODO cheinrich: Check if we still need this. This should be a global condition, not for a
  88   // single process ... ?
  89   return (state_ == SmpiProcessState::INITIALIZED);
  90 }
  91
  92 /** @brief Mark a process as initialized (=MPI_Init called) */
  93 void ActorExt::mark_as_initialized()
  94 {
  95   if (state_ != SmpiProcessState::FINALIZED)
  96     state_ = SmpiProcessState::INITIALIZED;
  97 }
  98
  99 void ActorExt::set_replaying(bool value)
 100 {
 101   if (state_ != SmpiProcessState::FINALIZED)
 102     replaying_ = value;
 103 }
 104
 105 bool ActorExt::replaying()
 106 {
 107   return replaying_;
 108 }
 109
 110 s4u::ActorPtr ActorExt::get_actor()
 111 {
 112   return actor_;
 113 }
 114
 115 /**
 116  * @brief Returns a structure that stores the location (filename + linenumber) of the last calls to MPI_* functions.
 117  *
 118  * @see smpi_trace_set_call_location
 119  */
 120 smpi_trace_call_location_t* ActorExt::call_location()
 121 {
 122   return &trace_call_loc_;
 123 }
 124
 125 void ActorExt::set_privatized_region(smpi_privatization_region_t region)
 126 {
 127   privatized_region_ = region;
 128 }
 129
 130 smpi_privatization_region_t ActorExt::privatized_region()
 131 {
 132   return privatized_region_;
 133 }
 134
 135 MPI_Comm ActorExt::comm_world()
 136 {
 137   return comm_world_ == nullptr ? MPI_COMM_NULL : *comm_world_;
 138 }
 139
 140 s4u::MutexPtr ActorExt::mailboxes_mutex()
 141 {
 142   return mailboxes_mutex_;
 143 }
 144
 145 #if HAVE_PAPI
 146 int ActorExt::papi_event_set()
 147 {
 148   return papi_event_set_;
 149 }
 150
 151 papi_counter_t& ActorExt::papi_counters()
 152 {
 153   return papi_counter_data_;
 154 }
 155 #endif
 156
 157 xbt_os_timer_t ActorExt::timer()
 158 {
 159   return timer_;
 160 }
 161
 162 void ActorExt::simulated_start()
 163 {
 164   simulated_ = SIMIX_get_clock();
 165 }
 166
 167 double ActorExt::simulated_elapsed()
 168 {
 169   return SIMIX_get_clock() - simulated_;
 170 }
 171
 172 MPI_Comm ActorExt::comm_self()
 173 {
 174   if (comm_self_ == MPI_COMM_NULL) {
 175     MPI_Group group = new Group(1);
 176     comm_self_      = new Comm(group, nullptr);
 177     group->set_mapping(actor_, 0);
 178   }
 179   return comm_self_;
 180 }
 181
 182 MPI_Info ActorExt::info_env()
 183 {
 184   if (info_env_==MPI_INFO_NULL)
 185     info_env_=new Info();
 186   return info_env_;
 187 }
 188
 189 MPI_Comm ActorExt::comm_intra()
 190 {
 191   return comm_intra_;
 192 }
 193
 194 void ActorExt::set_comm_intra(MPI_Comm comm)
 195 {
 196   comm_intra_ = comm;
 197 }
 198
 199 void ActorExt::set_sampling(int s)
 200 {
 201   sampling_ = s;
 202 }
 203
 204 int ActorExt::sampling()
 205 {
 206   return sampling_;
 207 }
 208
 209 void ActorExt::init()
 210 {
 211   xbt_assert(smpi_get_universe_size() != 0, "SimGrid was not initialized properly before entering MPI_Init. "
 212                                             "Aborting, please check compilation process and use smpirun.");
 213
 214   simgrid::s4u::ActorPtr self = simgrid::s4u::Actor::self();
 215   // cheinrich: I'm not sure what the impact of the SMPI_switch_data_segment on this call is. I moved
 216   // this up here so that I can set the privatized region before the switch.
 217   ActorExt* ext = smpi_process();
 218   // if we are in MPI_Init and argc handling has already been done.
 219   if (ext->initialized())
 220     return;
 221
 222   if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
 223     /* Now using the segment index of this process  */
 224     ext->set_privatized_region(smpi_init_global_memory_segment_process());
 225     /* Done at the process's creation */
 226     SMPI_switch_data_segment(self);
 227   }
 228
 229   ext->instance_id_ = self->get_property("instance_id");
 230   const int rank    = xbt_str_parse_int(self->get_property("rank"), "Cannot parse rank");
 231
 232   ext->state_ = SmpiProcessState::INITIALIZING;
 233   smpi_deployment_register_process(ext->instance_id_, rank, self);
 234
 235   ext->comm_world_ = smpi_deployment_comm_world(ext->instance_id_);
 236
 237   // set the process attached to the mailbox
 238   ext->mailbox_small_->set_receiver(ext->actor_);
 239   XBT_DEBUG("<%ld> SMPI process has been initialized: %p", ext->actor_->get_pid(), ext->actor_.get());
 240 }
 241
 242 int ActorExt::get_optind()
 243 {
 244   return optind_;
 245 }
 246
 247 void ActorExt::set_optind(int new_optind)
 248 {
 249   optind_ = new_optind;
 250 }
 251
 252 } // namespace smpi
 253 } // namespace simgrid