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 "src/mc/mc_replay.hpp"
  10 #include "src/simix/smx_private.hpp"
  11
  12 #if HAVE_PAPI
  13 #include "papi.h"
  14 extern std::string papi_default_config_name;
  15 #endif
  16
  17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_process, smpi, "Logging specific to SMPI (kernel)");
  18
  19 namespace simgrid {
  20 namespace smpi {
  21
  22 ActorExt::ActorExt(s4u::ActorPtr actor) : actor_(actor)
  23 {
  24   mailbox_         = s4u::Mailbox::by_name("SMPI-" + std::to_string(actor_->get_pid()));
  25   mailbox_small_   = s4u::Mailbox::by_name("small-" + std::to_string(actor_->get_pid()));
  26   mailboxes_mutex_ = s4u::Mutex::create();
  27   timer_           = xbt_os_timer_new();
  28   state_           = SmpiProcessState::UNINITIALIZED;
  29   info_env_        = MPI_INFO_NULL;
  30   if (MC_is_active())
  31     MC_ignore_heap(timer_, xbt_os_timer_size());
  32
  33 #if HAVE_PAPI
  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());
  43     } else {
  44       papi_event_set_ = PAPI_NULL;
  45       XBT_DEBUG("No PAPI set for process %li", actor->get_pid());
  46     }
  47   }
  48 #endif
  49 }
  50
  51 ActorExt::~ActorExt()
  52 {
  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_);
  58 }
  59
  60 /** @brief Prepares the current process for termination. */
  61 void ActorExt::finalize()
  62 {
  63   state_ = SmpiProcessState::FINALIZED;
  64   XBT_DEBUG("<%ld> Process left the game", actor_->get_pid());
  65
  66   smpi_deployment_unregister_process(instance_id_);
  67 }
  68
  69 /** @brief Check if a process is finalized */
  70 int ActorExt::finalized()
  71 {
  72   return (state_ == SmpiProcessState::FINALIZED);
  73 }
  74
  75 /** @brief Check if a process is partially initialized already */
  76 int ActorExt::initializing()
  77 {
  78   return (state_ == SmpiProcessState::INITIALIZING);
  79 }
  80
  81 /** @brief Check if a process is initialized */
  82 int ActorExt::initialized()
  83 {
  84   // TODO cheinrich: Check if we still need this. This should be a global condition, not for a
  85   // single process ... ?
  86   return (state_ == SmpiProcessState::INITIALIZED);
  87 }
  88
  89 /** @brief Mark a process as initialized (=MPI_Init called) */
  90 void ActorExt::mark_as_initialized()
  91 {
  92   if (state_ != SmpiProcessState::FINALIZED)
  93     state_ = SmpiProcessState::INITIALIZED;
  94 }
  95
  96 void ActorExt::set_replaying(bool value)
  97 {
  98   if (state_ != SmpiProcessState::FINALIZED)
  99     replaying_ = value;
 100 }
 101
 102 bool ActorExt::replaying()
 103 {
 104   return replaying_;
 105 }
 106
 107 s4u::ActorPtr ActorExt::get_actor()
 108 {
 109   return actor_;
 110 }
 111
 112 /**
 113  * @brief Returns a structure that stores the location (filename + linenumber) of the last calls to MPI_* functions.
 114  *
 115  * @see smpi_trace_set_call_location
 116  */
 117 smpi_trace_call_location_t* ActorExt::call_location()
 118 {
 119   return &trace_call_loc_;
 120 }
 121
 122 void ActorExt::set_privatized_region(smpi_privatization_region_t region)
 123 {
 124   privatized_region_ = region;
 125 }
 126
 127 smpi_privatization_region_t ActorExt::privatized_region()
 128 {
 129   return privatized_region_;
 130 }
 131
 132 MPI_Comm ActorExt::comm_world()
 133 {
 134   return comm_world_ == nullptr ? MPI_COMM_NULL : *comm_world_;
 135 }
 136
 137 s4u::MutexPtr ActorExt::mailboxes_mutex()
 138 {
 139   return mailboxes_mutex_;
 140 }
 141
 142 #if HAVE_PAPI
 143 int ActorExt::papi_event_set()
 144 {
 145   return papi_event_set_;
 146 }
 147
 148 papi_counter_t& ActorExt::papi_counters()
 149 {
 150   return papi_counter_data_;
 151 }
 152 #endif
 153
 154 xbt_os_timer_t ActorExt::timer()
 155 {
 156   return timer_;
 157 }
 158
 159 void ActorExt::simulated_start()
 160 {
 161   simulated_ = SIMIX_get_clock();
 162 }
 163
 164 double ActorExt::simulated_elapsed()
 165 {
 166   return SIMIX_get_clock() - simulated_;
 167 }
 168
 169 MPI_Comm ActorExt::comm_self()
 170 {
 171   if (comm_self_ == MPI_COMM_NULL) {
 172     MPI_Group group = new Group(1);
 173     comm_self_      = new Comm(group, nullptr);
 174     group->set_mapping(actor_, 0);
 175   }
 176   return comm_self_;
 177 }
 178
 179 MPI_Info ActorExt::info_env()
 180 {
 181   return info_env_;
 182 }
 183
 184 MPI_Comm ActorExt::comm_intra()
 185 {
 186   return comm_intra_;
 187 }
 188
 189 void ActorExt::set_comm_intra(MPI_Comm comm)
 190 {
 191   comm_intra_ = comm;
 192 }
 193
 194 void ActorExt::set_sampling(int s)
 195 {
 196   sampling_ = s;
 197 }
 198
 199 int ActorExt::sampling()
 200 {
 201   return sampling_;
 202 }
 203
 204 void ActorExt::init()
 205 {
 206   xbt_assert(smpi_get_universe_size() != 0, "SimGrid was not initialized properly before entering MPI_Init. "
 207                                             "Aborting, please check compilation process and use smpirun.");
 208
 209   simgrid::s4u::ActorPtr self = simgrid::s4u::Actor::self();
 210   // cheinrich: I'm not sure what the impact of the SMPI_switch_data_segment on this call is. I moved
 211   // this up here so that I can set the privatized region before the switch.
 212   ActorExt* ext = smpi_process();
 213   // if we are in MPI_Init and argc handling has already been done.
 214   if (ext->initialized())
 215     return;
 216
 217   if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
 218     /* Now using the segment index of this process  */
 219     ext->set_privatized_region(smpi_init_global_memory_segment_process());
 220     /* Done at the process's creation */
 221     SMPI_switch_data_segment(self);
 222   }
 223
 224   ext->instance_id_ = self->get_property("instance_id");
 225   const int rank    = xbt_str_parse_int(self->get_property("rank"), "Cannot parse rank");
 226
 227   ext->state_ = SmpiProcessState::INITIALIZING;
 228   smpi_deployment_register_process(ext->instance_id_, rank, self);
 229
 230   ext->comm_world_ = smpi_deployment_comm_world(ext->instance_id_);
 231
 232   // set the process attached to the mailbox
 233   ext->mailbox_small_->set_receiver(ext->actor_);
 234   XBT_DEBUG("<%ld> SMPI process has been initialized: %p", ext->actor_->get_pid(), ext->actor_.get());
 235 }
 236
 237 int ActorExt::get_optind()
 238 {
 239   return optind_;
 240 }
 241
 242 void ActorExt::set_optind(int new_optind)
 243 {
 244   optind_ = new_optind;
 245 }
 246
 247 } // namespace smpi
 248 } // namespace simgrid