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 simgrid::xbt::Extension<simgrid::s4u::Actor, ActorExt> ActorExt::EXTENSION_ID;
  23
  24 ActorExt::ActorExt(s4u::Actor* actor) : actor_(actor)
  25 {
  26   if (not simgrid::smpi::ActorExt::EXTENSION_ID.valid())
  27     simgrid::smpi::ActorExt::EXTENSION_ID = simgrid::s4u::Actor::extension_create<simgrid::smpi::ActorExt>();
  28
  29   mailbox_         = s4u::Mailbox::by_name("SMPI-" + std::to_string(actor_->get_pid()));
  30   mailbox_small_   = s4u::Mailbox::by_name("small-" + std::to_string(actor_->get_pid()));
  31   mailboxes_mutex_ = s4u::Mutex::create();
  32   timer_           = xbt_os_timer_new();
  33   state_           = SmpiProcessState::UNINITIALIZED;
  34   info_env_        = MPI_INFO_NULL;
  35   if (MC_is_active())
  36     MC_ignore_heap(timer_, xbt_os_timer_size());
  37
  38 #if HAVE_PAPI
  39   if (not smpi_cfg_papi_events_file().empty()) {
  40     // TODO: Implement host/process/thread based counters. This implementation
  41     // just always takes the values passed via "default", like this:
  42     // "default:COUNTER1:COUNTER2:COUNTER3;".
  43     auto it = units2papi_setup.find(papi_default_config_name);
  44     if (it != units2papi_setup.end()) {
  45       papi_event_set_    = it->second.event_set;
  46       papi_counter_data_ = it->second.counter_data;
  47       XBT_DEBUG("Setting PAPI set for process %li", actor->get_pid());
  48     } else {
  49       papi_event_set_ = PAPI_NULL;
  50       XBT_DEBUG("No PAPI set for process %li", actor->get_pid());
  51     }
  52   }
  53 #endif
  54 }
  55
  56 ActorExt::~ActorExt()
  57 {
  58   if (info_env_ != MPI_INFO_NULL)
  59     simgrid::smpi::Info::unref(info_env_);
  60   if (comm_self_ != MPI_COMM_NULL)
  61     simgrid::smpi::Comm::destroy(comm_self_);
  62   if (comm_intra_ != MPI_COMM_NULL)
  63     simgrid::smpi::Comm::destroy(comm_intra_);
  64   xbt_os_timer_free(timer_);
  65 }
  66
  67 /** @brief Prepares the current process for termination. */
  68 void ActorExt::finalize()
  69 {
  70   state_ = SmpiProcessState::FINALIZED;
  71   XBT_DEBUG("<%ld> Process left the game", actor_->get_pid());
  72
  73   smpi_deployment_unregister_process(instance_id_);
  74 }
  75
  76 /** @brief Check if a process is finalized */
  77 int ActorExt::finalized()
  78 {
  79   return (state_ == SmpiProcessState::FINALIZED);
  80 }
  81
  82 /** @brief Check if a process is partially initialized already */
  83 int ActorExt::initializing()
  84 {
  85   return (state_ == SmpiProcessState::INITIALIZING);
  86 }
  87
  88 /** @brief Check if a process is initialized */
  89 int ActorExt::initialized()
  90 {
  91   // TODO cheinrich: Check if we still need this. This should be a global condition, not for a
  92   // single process ... ?
  93   return (state_ == SmpiProcessState::INITIALIZED);
  94 }
  95
  96 /** @brief Mark a process as initialized (=MPI_Init called) */
  97 void ActorExt::mark_as_initialized()
  98 {
  99   if (state_ != SmpiProcessState::FINALIZED)
 100     state_ = SmpiProcessState::INITIALIZED;
 101 }
 102
 103 void ActorExt::set_replaying(bool value)
 104 {
 105   if (state_ != SmpiProcessState::FINALIZED)
 106     replaying_ = value;
 107 }
 108
 109 bool ActorExt::replaying()
 110 {
 111   return replaying_;
 112 }
 113
 114 s4u::ActorPtr ActorExt::get_actor()
 115 {
 116   return actor_;
 117 }
 118
 119 /**
 120  * @brief Returns a structure that stores the location (filename + linenumber) of the last calls to MPI_* functions.
 121  *
 122  * @see smpi_trace_set_call_location
 123  */
 124 smpi_trace_call_location_t* ActorExt::call_location()
 125 {
 126   return &trace_call_loc_;
 127 }
 128
 129 void ActorExt::set_privatized_region(smpi_privatization_region_t region)
 130 {
 131   privatized_region_ = region;
 132 }
 133
 134 smpi_privatization_region_t ActorExt::privatized_region()
 135 {
 136   return privatized_region_;
 137 }
 138
 139 MPI_Comm ActorExt::comm_world()
 140 {
 141   return comm_world_ == nullptr ? MPI_COMM_NULL : *comm_world_;
 142 }
 143
 144 s4u::MutexPtr ActorExt::mailboxes_mutex()
 145 {
 146   return mailboxes_mutex_;
 147 }
 148
 149 #if HAVE_PAPI
 150 int ActorExt::papi_event_set()
 151 {
 152   return papi_event_set_;
 153 }
 154
 155 papi_counter_t& ActorExt::papi_counters()
 156 {
 157   return papi_counter_data_;
 158 }
 159 #endif
 160
 161 xbt_os_timer_t ActorExt::timer()
 162 {
 163   return timer_;
 164 }
 165
 166 void ActorExt::simulated_start()
 167 {
 168   simulated_ = SIMIX_get_clock();
 169 }
 170
 171 double ActorExt::simulated_elapsed()
 172 {
 173   return SIMIX_get_clock() - simulated_;
 174 }
 175
 176 MPI_Comm ActorExt::comm_self()
 177 {
 178   if (comm_self_ == MPI_COMM_NULL) {
 179     MPI_Group group = new Group(1);
 180     comm_self_      = new Comm(group, nullptr);
 181     group->set_mapping(actor_, 0);
 182   }
 183   return comm_self_;
 184 }
 185
 186 MPI_Info ActorExt::info_env()
 187 {
 188   if (info_env_==MPI_INFO_NULL)
 189     info_env_=new Info();
 190   return info_env_;
 191 }
 192
 193 MPI_Comm ActorExt::comm_intra()
 194 {
 195   return comm_intra_;
 196 }
 197
 198 void ActorExt::set_comm_intra(MPI_Comm comm)
 199 {
 200   comm_intra_ = comm;
 201 }
 202
 203 void ActorExt::set_sampling(int s)
 204 {
 205   sampling_ = s;
 206 }
 207
 208 int ActorExt::sampling()
 209 {
 210   return sampling_;
 211 }
 212
 213 void ActorExt::init()
 214 {
 215   xbt_assert(smpi_get_universe_size() != 0, "SimGrid was not initialized properly before entering MPI_Init. "
 216                                             "Aborting, please check compilation process and use smpirun.");
 217
 218   simgrid::s4u::Actor* self = simgrid::s4u::Actor::self();
 219   // cheinrich: I'm not sure what the impact of the SMPI_switch_data_segment on this call is. I moved
 220   // this up here so that I can set the privatized region before the switch.
 221   ActorExt* ext = smpi_process();
 222   // if we are in MPI_Init and argc handling has already been done.
 223   if (ext->initialized())
 224     return;
 225
 226   if (smpi_cfg_privatization() == SmpiPrivStrategies::MMAP) {
 227     /* Now using the segment index of this process  */
 228     ext->set_privatized_region(smpi_init_global_memory_segment_process());
 229     /* Done at the process's creation */
 230     SMPI_switch_data_segment(self);
 231   }
 232
 233   ext->instance_id_ = self->get_property("instance_id");
 234   const int rank    = xbt_str_parse_int(self->get_property("rank"), "Cannot parse rank");
 235
 236   ext->state_ = SmpiProcessState::INITIALIZING;
 237   smpi_deployment_register_process(ext->instance_id_, rank, self);
 238
 239   ext->comm_world_ = smpi_deployment_comm_world(ext->instance_id_);
 240
 241   // set the process attached to the mailbox
 242   ext->mailbox_small_->set_receiver(ext->actor_);
 243   XBT_DEBUG("<%ld> SMPI process has been initialized: %p", ext->actor_->get_pid(), ext->actor_);
 244 }
 245
 246 int ActorExt::get_optind()
 247 {
 248   return optind_;
 249 }
 250
 251 void ActorExt::set_optind(int new_optind)
 252 {
 253   optind_ = new_optind;
 254 }
 255
 256 void ActorExt::bsend_buffer(void** buf, int* size)
 257 {
 258   *buf  = bsend_buffer_;
 259   *size = bsend_buffer_size_;
 260 }
 261
 262 void ActorExt::set_bsend_buffer(void* buf, int size)
 263 {
 264   bsend_buffer_     = buf;
 265   bsend_buffer_size_= size;
 266 }
 267
 268 } // namespace smpi
 269 } // namespace simgrid