-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2021. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "smpi_coll.hpp"
#include "smpi_f2c.hpp"
#include "smpi_host.hpp"
+#include "smpi_config.hpp"
#include "src/kernel/activity/CommImpl.hpp"
#include "src/simix/smx_private.hpp"
#include "src/smpi/include/smpi_actor.hpp"
#include "xbt/config.hpp"
+#include "xbt/file.hpp"
#include <algorithm>
-#include <boost/algorithm/string.hpp> /* trim_right / trim_left */
+#include <array>
+#include <boost/algorithm/string.hpp> /* split */
#include <boost/tokenizer.hpp>
-#include <cfloat> /* DBL_MAX */
+#include <boost/core/demangle.hpp>
+#include <cerrno>
#include <cinttypes>
#include <cstdint> /* intmax_t */
+#include <cstring> /* strerror */
#include <dlfcn.h>
#include <fcntl.h>
#include <fstream>
#include <sys/stat.h>
-#if SIMGRID_HAVE_MC
-#include "src/mc/mc_config.hpp"
-#endif
-
#if SG_HAVE_SENDFILE
#include <sys/sendfile.h>
#endif
#include <link.h>
#endif
-#if defined(__APPLE__)
-# include <AvailabilityMacros.h>
-# ifndef MAC_OS_X_VERSION_10_12
-# define MAC_OS_X_VERSION_10_12 101200
-# endif
-constexpr bool HAVE_WORKING_MMAP = (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_12);
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__sun) || defined(__HAIKU__)
-constexpr bool HAVE_WORKING_MMAP = false;
-#else
-constexpr bool HAVE_WORKING_MMAP = true;
-#endif
-
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi, "Logging specific to SMPI (kernel)");
#if SMPI_IFORT
#endif
#if HAVE_PAPI
-std::string papi_default_config_name = "default";
-std::map</* computation unit name */ std::string, papi_process_data> units2papi_setup;
+std::map</* computation unit name */ std::string, papi_process_data, std::less<>> units2papi_setup;
#endif
std::unordered_map<std::string, double> location2speedup;
static void (*saved_callback)(smx_activity_t, void*, size_t);
saved_callback = callback;
smpi_comm_copy_data_callback = [](simgrid::kernel::activity::CommImpl* comm, void* buff, size_t size) {
- saved_callback(smx_activity_t(comm), buff, size);
+ saved_callback(comm, buff, size);
};
}
-static void memcpy_private(void* dest, const void* src, std::vector<std::pair<size_t, size_t>>& private_blocks)
+static void memcpy_private(void* dest, const void* src, const std::vector<std::pair<size_t, size_t>>& private_blocks)
{
for (auto const& block : private_blocks)
memcpy((uint8_t*)dest+block.first, (uint8_t*)src+block.first, block.second-block.first);
}
-static void check_blocks(std::vector<std::pair<size_t, size_t>> &private_blocks, size_t buff_size) {
+static void check_blocks(const std::vector<std::pair<size_t, size_t>>& private_blocks, size_t buff_size)
+{
for (auto const& block : private_blocks)
xbt_assert(block.first <= block.second && block.second <= buff_size, "Oops, bug in shared malloc.");
}
XBT_DEBUG("Copy the data over");
if(smpi_is_shared(buff, src_private_blocks, &src_offset)) {
src_private_blocks = shift_and_frame_private_blocks(src_private_blocks, src_offset, buff_size);
- if (src_private_blocks.size()==1 && (src_private_blocks[0].second - src_private_blocks[0].first)==buff_size){//simple shared malloc ... return.
- XBT_DEBUG("Sender %p is shared. Let's ignore it.", buff);
+ if (src_private_blocks.empty()) { // simple shared malloc ... return.
+ XBT_VERB("Sender is shared. Let's ignore it.");
smpi_cleanup_comm_after_copy(comm, buff);
return;
}
}
else {
src_private_blocks.clear();
- src_private_blocks.push_back(std::make_pair(0, buff_size));
+ src_private_blocks.emplace_back(0, buff_size);
}
if (smpi_is_shared((char*)comm->dst_buff_, dst_private_blocks, &dst_offset)) {
dst_private_blocks = shift_and_frame_private_blocks(dst_private_blocks, dst_offset, buff_size);
- if (src_private_blocks.size()==1 && (src_private_blocks[0].second - src_private_blocks[0].first)==buff_size){//simple shared malloc ... return.
- XBT_DEBUG("Receiver %p is shared. Let's ignore it.", (char*)comm->dst_buff_);
+ if (dst_private_blocks.empty()) { // simple shared malloc ... return.
+ XBT_VERB("Receiver is shared. Let's ignore it.");
smpi_cleanup_comm_after_copy(comm, buff);
return;
}
}
else {
dst_private_blocks.clear();
- dst_private_blocks.push_back(std::make_pair(0, buff_size));
+ dst_private_blocks.emplace_back(0, buff_size);
}
check_blocks(src_private_blocks, buff_size);
check_blocks(dst_private_blocks, buff_size);
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 == SmpiPrivStrategies::MMAP) &&
+ if ((smpi_cfg_privatization() == SmpiPrivStrategies::MMAP) &&
(static_cast<char*>(buff) >= smpi_data_exe_start) &&
(static_cast<char*>(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(comm->src_actor_->iface());
- tmpbuff = static_cast<void*>(xbt_malloc(buff_size));
+ smpi_switch_data_segment(comm->src_actor_->get_iface());
+ tmpbuff = xbt_malloc(buff_size);
memcpy_private(tmpbuff, buff, private_blocks);
}
- if ((smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) &&
+ if ((smpi_cfg_privatization() == 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(comm->dst_actor_->iface());
+ smpi_switch_data_segment(comm->dst_actor_->get_iface());
}
XBT_DEBUG("Copying %zu bytes from %p to %p", buff_size, tmpbuff, comm->dst_buff_);
memcpy_private(comm->dst_buff_, tmpbuff, private_blocks);
/* nothing done in this version */
}
-static void smpi_check_options()
-{
-#if SIMGRID_HAVE_MC
- if (MC_is_active()) {
- if (_sg_mc_buffering == "zero")
- simgrid::config::set_value<int>("smpi/send-is-detached-thresh", 0);
- else if (_sg_mc_buffering == "infty")
- simgrid::config::set_value<int>("smpi/send-is-detached-thresh", INT_MAX);
- else
- THROW_IMPOSSIBLE;
- }
-#endif
-
- xbt_assert(simgrid::config::get_value<int>("smpi/async-small-thresh") <=
- simgrid::config::get_value<int>("smpi/send-is-detached-thresh"),
- "smpi/async-small-thresh (=%d) should be smaller or equal to smpi/send-is-detached-thresh (=%d)",
- simgrid::config::get_value<int>("smpi/async-small-thresh"),
- simgrid::config::get_value<int>("smpi/send-is-detached-thresh"));
-
- if (simgrid::config::is_default("smpi/host-speed") && not MC_is_active()) {
- XBT_INFO("You did not set the power of the host running the simulation. "
- "The timings will certainly not be accurate. "
- "Use the option \"--cfg=smpi/host-speed:<flops>\" to set its value. "
- "Check "
- "https://simgrid.org/doc/latest/Configuring_SimGrid.html#automatic-benchmarking-of-smpi-code for more "
- "information.");
- }
-
- xbt_assert(simgrid::config::get_value<double>("smpi/cpu-threshold") >= 0,
- "The 'smpi/cpu-threshold' option cannot have negative values [anymore]. If you want to discard "
- "the simulation of any computation, please use 'smpi/simulate-computation:no' instead.");
-}
-
int smpi_enabled() {
return MPI_COMM_WORLD != MPI_COMM_UNINITIALIZED;
}
// the configuration as given by the user (counter data as a pair of (counter_name, counter_counter))
// and the (computed) event_set.
- if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
+ if (not smpi_cfg_papi_events_file().empty()) {
if (PAPI_library_init(PAPI_VER_CURRENT) != PAPI_VER_CURRENT)
XBT_ERROR("Could not initialize PAPI library; is it correctly installed and linked?"
" Expected version is %u", PAPI_VER_CURRENT);
- typedef boost::tokenizer<boost::char_separator<char>> Tokenizer;
+ using Tokenizer = boost::tokenizer<boost::char_separator<char>>;
boost::char_separator<char> separator_units(";");
- std::string str = simgrid::config::get_value<std::string>("smpi/papi-events");
+ std::string str = smpi_cfg_papi_events_file();
Tokenizer tokens(str, separator_units);
// Iterate over all the computational units. This could be processes, hosts, threads, ranks... You name it.
}
// NOTE: We cannot use a map here, as we must obey the order of the counters
- // This is important for PAPI: We need to map the values of counters back
- // to the event_names (so, when PAPI_read() has finished)!
+ // This is important for PAPI: We need to map the values of counters back to the event_names (so, when PAPI_read()
+ // has finished)!
papi_counter_t counters2values;
- // Iterate over all counters that were specified for this specific
- // unit.
- // Note that we need to remove the name of the unit
- // (that could also be the "default" value), which always comes first.
- // Hence, we start at ++(events.begin())!
+ // Iterate over all counters that were specified for this specific unit.
+ // Note that we need to remove the name of the unit (that could also be the "default" value), which always comes
+ // first. Hence, we start at ++(events.begin())!
for (Tokenizer::iterator events_it = ++(event_tokens.begin()); events_it != event_tokens.end(); ++events_it) {
-
int event_code = PAPI_NULL;
- char* event_name = const_cast<char*>((*events_it).c_str());
+ auto* event_name = const_cast<char*>((*events_it).c_str());
if (PAPI_event_name_to_code(event_name, &event_code) != PAPI_OK) {
XBT_CRITICAL("Could not find PAPI event '%s'. Skipping.", event_name);
continue;
}
XBT_DEBUG("Successfully added PAPI event '%s' to the event set.", event_name);
- counters2values.push_back(
- // We cannot just pass *events_it, as this is of type const basic_string
- std::make_pair<std::string, long long>(std::string(*events_it), 0));
+ counters2values.emplace_back(*events_it, 0LL);
}
std::string unit_name = *(event_tokens.begin());
#endif
}
-static void smpi_init_options(){
- // return if already called
- if (smpi_cpu_threshold > -1)
- return;
- simgrid::smpi::colls::set_collectives();
- simgrid::smpi::colls::smpi_coll_cleanup_callback = nullptr;
- smpi_cpu_threshold = simgrid::config::get_value<double>("smpi/cpu-threshold");
- if (smpi_cpu_threshold < 0)
- smpi_cpu_threshold = DBL_MAX;
-
- smpi_host_speed = simgrid::config::get_value<double>("smpi/host-speed");
- std::string smpi_privatize_option = simgrid::config::get_value<std::string>("smpi/privatization");
- if (smpi_privatize_option == "no" || smpi_privatize_option == "0")
- smpi_privatize_global_variables = SmpiPrivStrategies::NONE;
- else if (smpi_privatize_option == "yes" || smpi_privatize_option == "1")
- smpi_privatize_global_variables = SmpiPrivStrategies::DEFAULT;
- else if (smpi_privatize_option == "mmap")
- smpi_privatize_global_variables = SmpiPrivStrategies::MMAP;
- else if (smpi_privatize_option == "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 (not HAVE_WORKING_MMAP && smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
- XBT_INFO("mmap privatization is broken on this platform, switching to dlopen privatization instead.");
- smpi_privatize_global_variables = SmpiPrivStrategies::DLOPEN;
- }
-
- std::string val = simgrid::config::get_value<std::string>("smpi/shared-malloc");
- if ((val == "yes") || (val == "1") || (val == "on") || (val == "global")) {
- smpi_cfg_shared_malloc = SharedMallocType::GLOBAL;
- } else if (val == "local") {
- smpi_cfg_shared_malloc = SharedMallocType::LOCAL;
- } else if ((val == "no") || (val == "0") || (val == "off")) {
- smpi_cfg_shared_malloc = SharedMallocType::NONE;
- } else {
- xbt_die("Invalid value '%s' for option smpi/shared-malloc. Possible values: 'on' or 'global', 'local', 'off'",
- val.c_str());
- }
-}
-
-typedef std::function<int(int argc, char *argv[])> smpi_entry_point_type;
-typedef int (* smpi_c_entry_point_type)(int argc, char **argv);
-typedef void (*smpi_fortran_entry_point_type)();
+using smpi_entry_point_type = std::function<int(int argc, char* argv[])>;
+using smpi_c_entry_point_type = int (*)(int argc, char** argv);
+using smpi_fortran_entry_point_type = void (*)();
template <typename F>
static int smpi_run_entry_point(const F& entry_point, const std::string& executable_path, std::vector<std::string> args)
{
// copy C strings, we need them writable
- std::vector<char*>* args4argv = new std::vector<char*>(args.size());
+ auto* args4argv = new std::vector<char*>(args.size());
std::transform(begin(args), end(args), begin(*args4argv), [](const std::string& s) { return xbt_strdup(s.c_str()); });
// set argv[0] to executable_path
// TODO, remove the number of functions involved here
static smpi_entry_point_type smpi_resolve_function(void* handle)
{
- smpi_fortran_entry_point_type entry_point_fortran = (smpi_fortran_entry_point_type)dlsym(handle, "user_main_");
+ auto* entry_point_fortran = reinterpret_cast<smpi_fortran_entry_point_type>(dlsym(handle, "user_main_"));
if (entry_point_fortran != nullptr) {
return [entry_point_fortran](int, char**) {
entry_point_fortran();
};
}
- smpi_c_entry_point_type entry_point = (smpi_c_entry_point_type)dlsym(handle, "main");
+ auto* entry_point = reinterpret_cast<smpi_c_entry_point_type>(dlsym(handle, "main"));
if (entry_point != nullptr) {
return entry_point;
}
{
int fdin = open(src.c_str(), O_RDONLY);
xbt_assert(fdin >= 0, "Cannot read from %s. Please make sure that the file exists and is executable.", src.c_str());
- int fdout = open(target.c_str(), O_CREAT | O_RDWR, S_IRWXU);
- xbt_assert(fdout >= 0, "Cannot write into %s", target.c_str());
+ XBT_ATTRIB_UNUSED int unlink_status = unlink(target.c_str());
+ xbt_assert(unlink_status == 0 || errno == ENOENT, "Failed to unlink file %s: %s", target.c_str(), strerror(errno));
+ int fdout = open(target.c_str(), O_CREAT | O_RDWR | O_EXCL, S_IRWXU);
+ xbt_assert(fdout >= 0, "Cannot write into %s: %s", target.c_str(), strerror(errno));
XBT_DEBUG("Copy %" PRIdMAX " bytes into %s", static_cast<intmax_t>(fdin_size), target.c_str());
#if SG_HAVE_SENDFILE
- ssize_t sent_size = sendfile(fdout, fdin, NULL, fdin_size);
+ ssize_t sent_size = sendfile(fdout, fdin, nullptr, fdin_size);
if (sent_size == fdin_size) {
close(fdin);
close(fdout);
}
#endif
// If this point is reached, sendfile() actually is not available. Copy file by hand.
- const int bufsize = 1024 * 1024 * 4;
- char* buf = new char[bufsize];
- while (int got = read(fdin, buf, bufsize)) {
+ std::vector<unsigned char> buf(1024 * 1024 * 4);
+ while (ssize_t got = read(fdin, buf.data(), buf.size())) {
if (got == -1) {
xbt_assert(errno == EINTR, "Cannot read from %s", src.c_str());
} else {
- char* p = buf;
- int todo = got;
- while (int done = write(fdout, p, todo)) {
+ const unsigned char* p = buf.data();
+ ssize_t todo = got;
+ while (ssize_t done = write(fdout, p, todo)) {
if (done == -1) {
xbt_assert(errno == EINTR, "Cannot write into %s", target.c_str());
} else {
}
}
}
- delete[] buf;
close(fdin);
close(fdout);
}
#if not defined(__APPLE__) && not defined(__HAIKU__)
static int visit_libs(struct dl_phdr_info* info, size_t, void* data)
{
- char* libname = (char*)(data);
- const char *path = info->dlpi_name;
- if(strstr(path, libname)){
- strncpy(libname, path, 512);
+ auto* libname = static_cast<std::string*>(data);
+ std::string path = info->dlpi_name;
+ if (path.find(*libname) != std::string::npos) {
+ *libname = std::move(path);
return 1;
}
-
return 0;
}
#endif
for (auto const& libname : privatize_libs) {
// load the library once to add it to the local libs, to get the absolute path
void* libhandle = dlopen(libname.c_str(), RTLD_LAZY);
+ xbt_assert(libhandle != nullptr,
+ "Cannot dlopen %s - check your settings in smpi/privatize-libs", libname.c_str());
// get library name from path
- char fullpath[512] = {'\0'};
- strncpy(fullpath, libname.c_str(), 511);
+ std::string fullpath = libname;
#if not defined(__APPLE__) && not defined(__HAIKU__)
- xbt_assert(0 != dl_iterate_phdr(visit_libs, fullpath),
- "Can't find a linked %s - check your settings in smpi/privatize-libs", fullpath);
- XBT_DEBUG("Extra lib to privatize '%s' found", fullpath);
+ XBT_ATTRIB_UNUSED int dl_iterate_res = dl_iterate_phdr(visit_libs, &fullpath);
+ xbt_assert(dl_iterate_res != 0, "Can't find a linked %s - check your settings in smpi/privatize-libs",
+ fullpath.c_str());
+ XBT_DEBUG("Extra lib to privatize '%s' found", fullpath.c_str());
#else
xbt_die("smpi/privatize-libs is not (yet) compatible with OSX nor with Haiku");
#endif
- privatize_libs_paths.push_back(fullpath);
+ privatize_libs_paths.emplace_back(std::move(fullpath));
dlclose(libhandle);
}
}
- simix_global->default_function = [executable, fdin_size](std::vector<std::string> args) {
+ simgrid::s4u::Engine::get_instance()->register_default([executable, fdin_size](std::vector<std::string> args) {
return std::function<void()>([executable, fdin_size, args] {
static std::size_t rank = 0;
// Copy the dynamic library:
- std::string target_executable =
- executable + "_" + std::to_string(getpid()) + "_" + std::to_string(rank) + ".so";
+ simgrid::xbt::Path path(executable);
+ std::string target_executable = simgrid::config::get_value<std::string>("smpi/tmpdir") + "/" +
+ path.get_base_name() + "_" + std::to_string(getpid()) + "_" + std::to_string(rank) + ".so";
smpi_copy_file(executable, target_executable, fdin_size);
// if smpi/privatize-libs is set, duplicate pointed lib and link each executable copy to a different one.
// Copy the dynamic library, the new name must be the same length as the old one
// just replace the name with 7 digits for the rank and the rest of the name.
- unsigned int pad = 7;
- if (libname.length() < pad)
- pad = libname.length();
- std::string target_lib =
- std::string(pad - std::to_string(rank).length(), '0') + std::to_string(rank) + libname.substr(pad);
+ auto pad = std::min<unsigned>(7, libname.length());
+ std::string target_libname = std::string(pad - std::to_string(rank).length(), '0') + std::to_string(rank) + libname.substr(pad);
+ std::string target_lib = simgrid::config::get_value<std::string>("smpi/tmpdir") + "/" + target_libname;
target_libs.push_back(target_lib);
XBT_DEBUG("copy lib %s to %s, with size %lld", libpath.c_str(), target_lib.c_str(), (long long)fdin_size2);
smpi_copy_file(libpath, target_lib, fdin_size2);
- std::string sedcommand = "sed -i -e 's/" + libname + "/" + target_lib + "/g' " + target_executable;
- xbt_assert(system(sedcommand.c_str()) == 0, "error while applying sed command %s \n", sedcommand.c_str());
+ std::string sedcommand = "sed -i -e 's/" + libname + "/" + target_libname + "/g' " + target_executable;
+ int status = system(sedcommand.c_str());
+ xbt_assert(status == 0, "error while applying sed command %s \n", sedcommand.c_str());
}
}
// Load the copy and resolve the entry point:
void* handle = dlopen(target_executable.c_str(), RTLD_LAZY | RTLD_LOCAL | WANT_RTLD_DEEPBIND);
int saved_errno = errno;
- if (simgrid::config::get_value<bool>("smpi/keep-temps") == false) {
+ if (not simgrid::config::get_value<bool>("smpi/keep-temps")) {
unlink(target_executable.c_str());
for (const std::string& target_lib : target_libs)
unlink(target_lib.c_str());
}
- xbt_assert(handle != nullptr, "dlopen failed: %s (errno: %d -- %s)", dlerror(), saved_errno,
- strerror(saved_errno));
+ xbt_assert(handle != nullptr,
+ "dlopen failed: %s (errno: %d -- %s).\nError: Did you compile the program with a SMPI-specific "
+ "compiler (spmicc or friends)?",
+ dlerror(), saved_errno, strerror(saved_errno));
smpi_entry_point_type entry_point = smpi_resolve_function(handle);
xbt_assert(entry_point, "Could not resolve entry point");
smpi_run_entry_point(entry_point, executable, args);
});
- };
+ });
}
static void smpi_init_privatization_no_dlopen(const std::string& executable)
{
- if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP)
+ if (smpi_cfg_privatization() == SmpiPrivStrategies::MMAP)
smpi_prepare_global_memory_segment();
// Load the dynamic library and resolve the entry point:
smpi_entry_point_type entry_point = smpi_resolve_function(handle);
xbt_assert(entry_point, "main not found in %s", executable.c_str());
- if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP)
+ if (smpi_cfg_privatization() == SmpiPrivStrategies::MMAP)
smpi_backup_global_memory_segment();
// Execute the same entry point for each simulated process:
- simix_global->default_function = [entry_point, executable](std::vector<std::string> args) {
+ simgrid::s4u::Engine::get_instance()->register_default([entry_point, executable](std::vector<std::string> args) {
return std::function<void()>(
[entry_point, executable, args] { smpi_run_entry_point(entry_point, executable, args); });
- };
+ });
}
int smpi_main(const char* executable, int argc, char* argv[])
* configuration tools */
return 0;
}
-
- TRACE_global_init();
+
+ SMPI_switch_data_segment = &smpi_switch_data_segment;
+ smpi_init_options();
+ simgrid::instr::init();
SIMIX_global_init(&argc, argv);
auto engine = simgrid::s4u::Engine::get_instance();
- SMPI_switch_data_segment = &smpi_switch_data_segment;
+
sg_storage_file_system_init();
// parse the platform file: get the host list
engine->load_platform(argv[1]);
SIMIX_comm_set_copy_data_callback(smpi_comm_copy_buffer_callback);
- smpi_init_options();
- if (smpi_privatize_global_variables == SmpiPrivStrategies::DLOPEN)
+ if (smpi_cfg_privatization() == SmpiPrivStrategies::DLOPEN)
smpi_init_privatization_dlopen(executable);
else
smpi_init_privatization_no_dlopen(executable);
+ simgrid::smpi::colls::set_collectives();
+ simgrid::smpi::colls::smpi_coll_cleanup_callback = nullptr;
+
SMPI_init();
/* This is a ... heavy way to count the MPI ranks */
int rank_counts = 0;
- simgrid::s4u::Actor::on_creation.connect([&rank_counts](simgrid::s4u::Actor& actor) {
+ simgrid::s4u::Actor::on_creation.connect([&rank_counts](const simgrid::s4u::Actor& actor) {
if (not actor.is_daemon())
rank_counts++;
});
if (MC_is_active()) {
MC_run();
} else {
-
SIMIX_run();
xbt_os_walltimer_stop(global_timer);
// Called either directly from the user code, or from the code called by smpirun
void SMPI_init(){
+ smpi_init_options();
simgrid::s4u::Actor::on_creation.connect([](simgrid::s4u::Actor& actor) {
if (not actor.is_daemon())
actor.extension_set<simgrid::smpi::ActorExt>(new simgrid::smpi::ActorExt(&actor));
for (auto const& host : simgrid::s4u::Engine::get_instance()->get_all_hosts())
host->extension_set(new simgrid::smpi::Host(host));
- smpi_init_options();
if (not MC_is_active()) {
global_timer = xbt_os_timer_new();
xbt_os_walltimer_start(global_timer);
}
-
- std::string filename = simgrid::config::get_value<std::string>("smpi/comp-adjustment-file");
- if (not filename.empty()) {
- std::ifstream fstream(filename);
- xbt_assert(fstream.is_open(), "Could not open file %s. Does it exist?", filename.c_str());
-
- std::string line;
- typedef boost::tokenizer<boost::escaped_list_separator<char>> Tokenizer;
- std::getline(fstream, line); // Skip the header line
- while (std::getline(fstream, line)) {
- Tokenizer tok(line);
- Tokenizer::iterator it = tok.begin();
- Tokenizer::iterator end = std::next(tok.begin());
-
- std::string location = *it;
- boost::trim(location);
- location2speedup.insert(std::pair<std::string, double>(location, std::stod(*end)));
- }
- }
smpi_init_papi();
smpi_check_options();
}
xbt_os_timer_free(global_timer);
}
- if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP)
+ if (smpi_cfg_privatization() == SmpiPrivStrategies::MMAP)
smpi_destroy_global_memory_segments();
- if (simgrid::smpi::F2C::lookup() != nullptr)
- simgrid::smpi::F2C::delete_lookup();
+
+ if (simgrid::smpi::F2C::lookup() != nullptr &&
+ simgrid::smpi::F2C::lookup()->size() > simgrid::smpi::F2C::get_num_default_handles()) {
+ XBT_WARN("Probable memory leaks in your code: SMPI detected %zu unfreed MPI handles : "
+ "display types and addresses (n max) with --cfg=smpi/list-leaks:n.\n"
+ "Running smpirun with -wrapper \"valgrind --leak-check=full\" can provide more information",
+ simgrid::smpi::F2C::lookup()->size() - simgrid::smpi::F2C::get_num_default_handles());
+ int n = simgrid::config::get_value<int>("smpi/list-leaks");
+ for (auto const& p : *simgrid::smpi::F2C::lookup()) {
+ static int printed = 0;
+ if (printed >= n)
+ break;
+ if (p.first >= simgrid::smpi::F2C::get_num_default_handles()) {
+ XBT_WARN("Leak %p of type %s", p.second, boost::core::demangle(typeid(*(p.second)).name()).c_str());
+ printed++;
+ }
+ }
+ }
}
void smpi_mpi_init() {
if(smpi_init_sleep > 0)
simgrid::s4u::this_actor::sleep_for(smpi_init_sleep);
}
+
+void SMPI_thread_create() {
+ TRACE_smpi_init(simgrid::s4u::this_actor::get_pid(), __func__);
+}
