X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c0a8dc4347a48934194fcc4b1db60613bc816cc8..a39d19f655f4f30d3672e25d2003482867164559:/src/smpi/internals/smpi_global.cpp diff --git a/src/smpi/internals/smpi_global.cpp b/src/smpi/internals/smpi_global.cpp index c9e5e7b24e..edfc750a82 100644 --- a/src/smpi/internals/smpi_global.cpp +++ b/src/smpi/internals/smpi_global.cpp @@ -6,8 +6,10 @@ #include "SmpiHost.hpp" #include "mc/mc.h" #include "private.hpp" +#include "simgrid/s4u/Engine.hpp" #include "simgrid/s4u/Host.hpp" #include "simgrid/s4u/Mailbox.hpp" +#include "simgrid/s4u/forward.hpp" #include "smpi_coll.hpp" #include "smpi_comm.hpp" #include "smpi_group.hpp" @@ -50,10 +52,13 @@ struct papi_process_data { }; #endif +using simgrid::s4u::Actor; +using simgrid::s4u::ActorPtr; std::unordered_map location2speedup; -static std::map process_data; +static std::map process_data; int process_count = 0; +static int smpi_exit_status = 0; int smpi_universe_size = 0; extern double smpi_total_benched_time; xbt_os_timer_t global_timer; @@ -73,7 +78,7 @@ MPI_Errhandler *MPI_ERRORS_ARE_FATAL = nullptr; MPI_Errhandler *MPI_ERRHANDLER_NULL = nullptr; // No instance gets manually created; check also the smpirun.in script as // this default name is used there as well (when the tag is generated). -static const char* smpi_default_instance_name = "smpirun"; +static const std::string smpi_default_instance_name("smpirun"); static simgrid::config::Flag smpi_wtime_sleep( "smpi/wtime", "Minimum time to inject inside a call to MPI_Wtime", 0.0); static simgrid::config::Flag smpi_init_sleep( @@ -81,12 +86,6 @@ static simgrid::config::Flag smpi_init_sleep( void (*smpi_comm_copy_data_callback) (smx_activity_t, void*, size_t) = &smpi_comm_copy_buffer_callback; -void smpi_add_process(int smx_process) -{ - process_data.insert( - std::pair(smx_process, new simgrid::smpi::Process(smx_process, nullptr))); -} - int smpi_process_count() { return process_count; @@ -94,16 +93,16 @@ int smpi_process_count() simgrid::smpi::Process* smpi_process() { - smx_actor_t me = SIMIX_process_self(); + ActorPtr me = Actor::self(); if (me == nullptr) // This happens sometimes (eg, when linking against NS3 because it pulls openMPI...) return nullptr; - simgrid::msg::ActorExt* msgExt = static_cast(me->userdata); + simgrid::msg::ActorExt* msgExt = static_cast(me->get_impl()->userdata); return static_cast(msgExt->data); } -simgrid::smpi::Process* smpi_process_remote(int index) +simgrid::smpi::Process* smpi_process_remote(ActorPtr actor) { - return process_data.at(index); + return process_data.at(actor); } MPI_Comm smpi_process_comm_self(){ @@ -115,7 +114,7 @@ void smpi_process_init(int *argc, char ***argv){ } int smpi_process_index(){ - return smpi_process()->index(); + return simgrid::s4u::this_actor::get_pid(); } void * smpi_process_get_user_data(){ @@ -190,23 +189,19 @@ void smpi_comm_copy_buffer_callback(smx_activity_t synchro, void *buff, size_t b auto private_blocks = merge_private_blocks(src_private_blocks, dst_private_blocks); check_blocks(private_blocks, buff_size); void* tmpbuff=buff; - if ((smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) && (static_cast(buff) >= smpi_data_exe_start) && + if ((smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) && + (static_cast(buff) >= smpi_data_exe_start) && (static_cast(buff) < smpi_data_exe_start + smpi_data_exe_size)) { XBT_DEBUG("Privatization : We are copying from a zone inside global memory... Saving data to temp buffer !"); - - smpi_switch_data_segment( - static_cast((static_cast(comm->src_proc->userdata)->data)) - ->index()); + smpi_switch_data_segment(comm->src_proc->iface()); tmpbuff = static_cast(xbt_malloc(buff_size)); memcpy_private(tmpbuff, buff, private_blocks); } - if ((smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) && ((char*)comm->dst_buff >= smpi_data_exe_start) && + if ((smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) && ((char*)comm->dst_buff >= smpi_data_exe_start) && ((char*)comm->dst_buff < smpi_data_exe_start + smpi_data_exe_size)) { XBT_DEBUG("Privatization : We are copying to a zone inside global memory - Switch data segment"); - smpi_switch_data_segment( - static_cast((static_cast(comm->dst_proc->userdata)->data)) - ->index()); + smpi_switch_data_segment(comm->dst_proc->iface()); } XBT_DEBUG("Copying %zu bytes from %p to %p", buff_size, tmpbuff,comm->dst_buff); memcpy_private(comm->dst_buff, tmpbuff, private_blocks); @@ -351,18 +346,6 @@ void smpi_global_destroy() smpi_bench_destroy(); smpi_shared_destroy(); smpi_deployment_cleanup_instances(); - for (auto& pair : process_data) { - auto& process = pair.second; - if (process->comm_self() != MPI_COMM_NULL) { - simgrid::smpi::Comm::destroy(process->comm_self()); - } - if (process->comm_intra() != MPI_COMM_NULL) { - simgrid::smpi::Comm::destroy(process->comm_intra()); - } - xbt_os_timer_free(process->timer()); - xbt_mutex_destroy(process->mailboxes_mutex()); - } - process_data.clear(); if (simgrid::smpi::Colls::smpi_coll_cleanup_callback != nullptr) simgrid::smpi::Colls::smpi_coll_cleanup_callback(); @@ -373,7 +356,7 @@ void smpi_global_destroy() xbt_os_timer_free(global_timer); } - if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) + if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) smpi_destroy_global_memory_segments(); smpi_free_static(); } @@ -386,23 +369,28 @@ static void smpi_init_options(){ simgrid::smpi::Colls::smpi_coll_cleanup_callback = nullptr; smpi_cpu_threshold = xbt_cfg_get_double("smpi/cpu-threshold"); smpi_host_speed = xbt_cfg_get_double("smpi/host-speed"); + xbt_assert(smpi_host_speed >= 0, "You're trying to set the host_speed to a negative value (%f)", smpi_host_speed); std::string smpi_privatize_option = xbt_cfg_get_string("smpi/privatization"); if (smpi_privatize_option == "no" || smpi_privatize_option == "0") - smpi_privatize_global_variables = SMPI_PRIVATIZE_NONE; + smpi_privatize_global_variables = SmpiPrivStrategies::None; else if (smpi_privatize_option == "yes" || smpi_privatize_option == "1") - smpi_privatize_global_variables = SMPI_PRIVATIZE_DEFAULT; + smpi_privatize_global_variables = SmpiPrivStrategies::Default; else if (smpi_privatize_option == "mmap") - smpi_privatize_global_variables = SMPI_PRIVATIZE_MMAP; + smpi_privatize_global_variables = SmpiPrivStrategies::Mmap; else if (smpi_privatize_option == "dlopen") - smpi_privatize_global_variables = SMPI_PRIVATIZE_DLOPEN; + smpi_privatize_global_variables = SmpiPrivStrategies::Dlopen; else xbt_die("Invalid value for smpi/privatization: '%s'", smpi_privatize_option.c_str()); + if (not SMPI_switch_data_segment) { + XBT_DEBUG("Running without smpi_main(); disable smpi/privatization."); + smpi_privatize_global_variables = SmpiPrivStrategies::None; + } #if defined(__FreeBSD__) - if (smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) { - XBT_INFO("Mixing mmap privatization is broken on FreeBSD, switching to dlopen privatization instead."); - smpi_privatize_global_variables = SMPI_PRIVATIZE_DLOPEN; - } + if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) { + XBT_INFO("mmap privatization is broken on FreeBSD, switching to dlopen privatization instead."); + smpi_privatize_global_variables = SmpiPrivStrategies::Dlopen; + } #endif if (smpi_cpu_threshold < 0) @@ -437,7 +425,8 @@ static int smpi_run_entry_point(smpi_entry_point_type entry_point, std::vectorset_return_value(res); + if (smpi_exit_status == 0) + smpi_exit_status = res; } return 0; } @@ -479,6 +468,9 @@ int smpi_main(const char* executable, int argc, char *argv[]) SMPI_switch_data_segment = &smpi_switch_data_segment; + // TODO This will not be executed in the case where smpi_main is not called, + // e.g., not for smpi_msg_masterslave. This should be moved to another location + // that is always called -- maybe close to Actor::onCreation? simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) { host.extension_set(new simgrid::smpi::SmpiHost(&host)); }); @@ -488,8 +480,7 @@ int smpi_main(const char* executable, int argc, char *argv[]) SIMIX_comm_set_copy_data_callback(smpi_comm_copy_buffer_callback); smpi_init_options(); - - if (smpi_privatize_global_variables == SMPI_PRIVATIZE_DLOPEN) { + if (smpi_privatize_global_variables == SmpiPrivStrategies::Dlopen) { std::string executable_copy = executable; @@ -508,17 +499,18 @@ int smpi_main(const char* executable, int argc, char *argv[]) + "_" + std::to_string(rank++) + ".so"; int fdin = open(executable_copy.c_str(), O_RDONLY); - xbt_assert(fdin >= 0, "Cannot read from %s", executable_copy.c_str()); + xbt_assert(fdin >= 0, "Cannot read from %s. Please make sure that the file exists and is executable.", + executable_copy.c_str()); int fdout = open(target_executable.c_str(), O_CREAT | O_RDWR, S_IRWXU); xbt_assert(fdout >= 0, "Cannot write into %s", target_executable.c_str()); + XBT_DEBUG("Copy %ld bytes into %s", static_cast(fdin_size), target_executable.c_str()); #if HAVE_SENDFILE ssize_t sent_size = sendfile(fdout, fdin, NULL, fdin_size); xbt_assert(sent_size == fdin_size, "Error while copying %s: only %zd bytes copied instead of %ld (errno: %d -- %s)", target_executable.c_str(), sent_size, fdin_size, errno, strerror(errno)); #else - XBT_VERB("Copy %d bytes into %s", static_cast(fdin_size), target_executable.c_str()); const int bufsize = 1024 * 1024 * 4; char buf[bufsize]; while (int got = read(fdin, buf, bufsize)) { @@ -555,18 +547,19 @@ int smpi_main(const char* executable, int argc, char *argv[]) smpi_run_entry_point(entry_point, args); }); }; - } else { - + if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) + smpi_prepare_global_memory_segment(); // Load the dynamic library and resolve the entry point: - void* handle = dlopen(executable, RTLD_LAZY | RTLD_LOCAL | RTLD_DEEPBIND); + void* handle = dlopen(executable, RTLD_LAZY | RTLD_LOCAL); if (handle == nullptr) xbt_die("dlopen failed for %s: %s (errno: %d -- %s)", executable, dlerror(), errno, strerror(errno)); smpi_entry_point_type entry_point = smpi_resolve_function(handle); if (not entry_point) xbt_die("main not found in %s", executable); - // TODO, register the executable for SMPI privatization + if (smpi_privatize_global_variables == SmpiPrivStrategies::Mmap) + smpi_backup_global_memory_segment(); // Execute the same entry point for each simulated process: simix_global->default_function = [entry_point](std::vector args) { @@ -574,13 +567,12 @@ int smpi_main(const char* executable, int argc, char *argv[]) smpi_run_entry_point(entry_point, args); }); }; - } SMPI_init(); SIMIX_launch_application(argv[2]); - SMPI_app_instance_register(smpi_default_instance_name, nullptr, - SIMIX_process_count()); // This call has a side effect on process_count... + SMPI_app_instance_register(smpi_default_instance_name.c_str(), nullptr, + process_data.size()); // This call has a side effect on process_count... MPI_COMM_WORLD = *smpi_deployment_comm_world(smpi_default_instance_name); smpi_universe_size = process_count; @@ -608,29 +600,33 @@ int smpi_main(const char* executable, int argc, char *argv[]) "You may want to use sampling functions or trace replay to reduce this."); } } - int ret = 0; - for (int i = 0, count = smpi_process_count(); i < count; i++) { - if (process_data.at(i)->return_value() != 0) { - ret = process_data.at(i)->return_value(); // return first non 0 value - break; - } - } smpi_global_destroy(); TRACE_end(); - return ret; + return smpi_exit_status; } // Called either directly from the user code, or from the code called by smpirun void SMPI_init(){ + simgrid::s4u::Actor::on_creation.connect([](simgrid::s4u::ActorPtr actor) { + if (not actor->is_daemon()) { + process_data.insert({actor, new simgrid::smpi::Process(actor, nullptr)}); + } + }); + simgrid::s4u::Actor::on_destruction.connect([](simgrid::s4u::ActorPtr actor) { + auto it = process_data.find(actor); + if (it != process_data.end()) { + delete it->second; + process_data.erase(it); + } + }); + smpi_init_options(); smpi_global_init(); smpi_check_options(); TRACE_smpi_alloc(); - simgrid::surf::surfExitCallbacks.connect(TRACE_smpi_release); - if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) - smpi_backup_global_memory_segment(); + simgrid::s4u::onSimulationEnd.connect(TRACE_smpi_release); } void SMPI_finalize(){