#include "xbt/config.hpp"
#include <algorithm>
-#include <boost/algorithm/string.hpp> /* trim_right / trim_left */
+#include <boost/algorithm/string.hpp> /* split */
#include <boost/tokenizer.hpp>
-#include <cfloat> /* DBL_MAX */
#include <cinttypes>
#include <cstdint> /* intmax_t */
#include <dlfcn.h>
#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
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 !");
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");
/* 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;
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.
#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);
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:
* configuration tools */
return 0;
}
-
+
+ SMPI_switch_data_segment = &smpi_switch_data_segment;
+ smpi_init_options();
TRACE_global_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 */
// 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();
