-/* Copyright (c) 2007, 2009-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2019. 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 "getopt.h"
#include "private.hpp"
+#include "simgrid/host.h"
#include "simgrid/modelchecker.h"
+#include "simgrid/s4u/Exec.hpp"
#include "smpi_comm.hpp"
-#include "simgrid/host.h"
-#include "smpi_process.hpp"
#include "src/internal_config.h"
#include "src/mc/mc_replay.hpp"
+#include "src/simix/ActorImpl.hpp"
+#include "xbt/config.hpp"
+
+#include "src/smpi/include/smpi_actor.hpp"
#include <unordered_map>
#ifndef WIN32
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_bench, smpi, "Logging specific to SMPI (benchmarking)");
+static simgrid::config::Flag<double>
+ smpi_wtime_sleep("smpi/wtime",
+ "Minimum time to inject inside a call to MPI_Wtime(), gettimeofday() and clock_gettime()",
+ 1e-8 /* Documented to be 10 ns */);
+
double smpi_cpu_threshold = -1;
double smpi_host_speed;
-shared_malloc_type smpi_cfg_shared_malloc = shmalloc_global;
+SharedMallocType smpi_cfg_shared_malloc = SharedMallocType::GLOBAL;
double smpi_total_benched_time = 0;
-extern "C" XBT_PUBLIC(void) smpi_execute_flops_(double *flops);
+extern "C" XBT_PUBLIC void smpi_execute_flops_(double* flops);
+
void smpi_execute_flops_(double *flops)
{
smpi_execute_flops(*flops);
}
-extern "C" XBT_PUBLIC(void) smpi_execute_(double *duration);
+extern "C" XBT_PUBLIC void smpi_execute_(double* duration);
void smpi_execute_(double *duration)
{
smpi_execute(*duration);
}
void smpi_execute_flops(double flops) {
+ xbt_assert(flops >= 0, "You're trying to execute a negative amount of flops (%f)!", flops);
XBT_DEBUG("Handle real computation time: %f flops", flops);
- smx_activity_t action = simcall_execution_start("computation", flops, 1, 0);
- simcall_set_category (action, TRACE_internal_smpi_get_category());
- simcall_execution_wait(action);
- smpi_switch_data_segment(smpi_process()->index());
+ simgrid::s4u::this_actor::exec_init(flops)
+ ->set_name("computation")
+ ->set_tracing_category(TRACE_internal_smpi_get_category())
+ ->start()
+ ->wait();
+ smpi_switch_data_segment(simgrid::s4u::Actor::self());
}
void smpi_execute(double duration)
if (duration >= smpi_cpu_threshold) {
XBT_DEBUG("Sleep for %g to handle real computation time", duration);
double flops = duration * smpi_host_speed;
- int rank = smpi_process()->index();
+ int rank = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_computing_in(rank, flops);
smpi_execute_flops(flops);
void smpi_bench_begin()
{
- if (smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP) {
- smpi_switch_data_segment(smpi_process()->index());
+ if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
+ smpi_switch_data_segment(simgrid::s4u::Actor::self());
}
if (MC_is_active() || MC_record_replay_is_active())
return;
#if HAVE_PAPI
- if (not xbt_cfg_get_string("smpi/papi-events").empty()) {
+ if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
int event_set = smpi_process()->papi_event_set();
// PAPI_start sets everything to 0! See man(3) PAPI_start
- if (PAPI_LOW_LEVEL_INITED == PAPI_is_initialized()) {
- if (PAPI_start(event_set) != PAPI_OK) {
- // TODO This needs some proper handling.
- XBT_CRITICAL("Could not start PAPI counters.\n");
- xbt_die("Error.");
- }
+ if (PAPI_LOW_LEVEL_INITED == PAPI_is_initialized() && PAPI_start(event_set) != PAPI_OK) {
+ // TODO This needs some proper handling.
+ XBT_CRITICAL("Could not start PAPI counters.\n");
+ xbt_die("Error.");
}
}
#endif
* An MPI function has been called and now is the right time to update
* our PAPI counters for this process.
*/
- if (xbt_cfg_get_string("smpi/papi-events")[0] != '\0') {
+ if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
papi_counter_t& counter_data = smpi_process()->papi_counters();
int event_set = smpi_process()->papi_event_set();
std::vector<long long> event_values = std::vector<long long>(counter_data.size());
xbt_die("Aborting.");
}
- if (xbt_cfg_get_string("smpi/comp-adjustment-file")[0] != '\0') { // Maybe we need to artificially speed up or slow
- // down our computation based on our statistical analysis.
+ // Maybe we need to artificially speed up or slow down our computation based on our statistical analysis.
+ if (simgrid::config::get_value<std::string>("smpi/comp-adjustment-file")[0] != '\0') {
smpi_trace_call_location_t* loc = smpi_process()->call_location();
std::string key = loc->get_composed_key();
}
// Simulate the benchmarked computation unless disabled via command-line argument
- if (xbt_cfg_get_boolean("smpi/simulate-computation")) {
+ if (simgrid::config::get_value<bool>("smpi/simulate-computation")) {
smpi_execute(xbt_os_timer_elapsed(timer)/speedup);
}
#if HAVE_PAPI
- if (xbt_cfg_get_string("smpi/papi-events")[0] != '\0' && TRACE_smpi_is_enabled()) {
+ if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty() && TRACE_smpi_is_enabled()) {
container_t container =
- new simgrid::instr::Container(std::string("rank-") + std::to_string(smpi_process()->index()));
+ simgrid::instr::Container::by_name(std::string("rank-") + std::to_string(simgrid::s4u::this_actor::get_pid()));
papi_counter_t& counter_data = smpi_process()->papi_counters();
for (auto const& pair : counter_data) {
- new simgrid::instr::SetVariableEvent(
- surf_get_clock(), container, PJ_type_get(/* countername */ pair.first.c_str(), container->type), pair.second);
+ simgrid::instr::VariableType* variable = static_cast<simgrid::instr::VariableType*>(container->type_->by_name(pair.first));
+ variable->set_event(SIMIX_get_clock(), pair.second);
}
}
#endif
smpi_total_benched_time += xbt_os_timer_elapsed(timer);
}
-/* Private sleep function used by smpi_sleep() and smpi_usleep() */
+/* Private sleep function used by smpi_sleep(), smpi_usleep() and friends */
static unsigned int private_sleep(double secs)
{
smpi_bench_end();
XBT_DEBUG("Sleep for: %lf secs", secs);
- int rank = MPI_COMM_WORLD->rank();
+ int rank = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_sleeping_in(rank, secs);
simcall_process_sleep(secs);
unsigned int smpi_sleep(unsigned int secs)
{
+ if (not smpi_process())
+ return sleep(secs);
return private_sleep(static_cast<double>(secs));
}
int smpi_usleep(useconds_t usecs)
{
+ if (not smpi_process())
+ return usleep(usecs);
return static_cast<int>(private_sleep(static_cast<double>(usecs) / 1000000.0));
}
#if _POSIX_TIMERS > 0
-int smpi_nanosleep(const struct timespec* tp, struct timespec* /*t*/)
+int smpi_nanosleep(const struct timespec* tp, struct timespec* t)
{
+ if (not smpi_process())
+ return nanosleep(tp,t);
return static_cast<int>(private_sleep(static_cast<double>(tp->tv_sec + tp->tv_nsec / 1000000000.0)));
}
#endif
-int smpi_gettimeofday(struct timeval* tv, void* /*tz*/)
+int smpi_gettimeofday(struct timeval* tv, struct timezone* tz)
{
+ if (not smpi_process())
+ return gettimeofday(tv, tz);
+
smpi_bench_end();
double now = SIMIX_get_clock();
if (tv) {
tv->tv_usec = static_cast<suseconds_t>((now - tv->tv_sec) * 1e6);
#endif
}
+ if (smpi_wtime_sleep > 0)
+ simcall_process_sleep(smpi_wtime_sleep);
smpi_bench_begin();
return 0;
}
#if _POSIX_TIMERS > 0
-int smpi_clock_gettime(clockid_t /*clk_id*/, struct timespec* tp)
+int smpi_clock_gettime(clockid_t clk_id, struct timespec* tp)
{
+ if (not smpi_process())
+ return clock_gettime(clk_id, tp);
//there is only one time in SMPI, so clk_id is ignored.
smpi_bench_end();
double now = SIMIX_get_clock();
tp->tv_sec = static_cast<time_t>(now);
tp->tv_nsec = static_cast<long int>((now - tp->tv_sec) * 1e9);
}
+ if (smpi_wtime_sleep > 0)
+ simcall_process_sleep(smpi_wtime_sleep);
smpi_bench_begin();
return 0;
}
#endif
+double smpi_mpi_wtime()
+{
+ double time;
+ if (smpi_process()->initialized() && not smpi_process()->finalized() && not smpi_process()->sampling()) {
+ smpi_bench_end();
+ time = SIMIX_get_clock();
+ if (smpi_wtime_sleep > 0)
+ simcall_process_sleep(smpi_wtime_sleep);
+ smpi_bench_begin();
+ } else {
+ time = SIMIX_get_clock();
+ }
+ return time;
+}
+
extern double sg_surf_precision;
unsigned long long smpi_rastro_resolution ()
{
SampleLocation(bool global, const char* file, int line) : std::string(std::string(file) + ":" + std::to_string(line))
{
if (not global)
- this->append(":" + std::to_string(smpi_process()->index()));
+ this->append(":" + std::to_string(simgrid::s4u::this_actor::get_pid()));
}
};
bool need_more_benchs() const;
};
-}
-
-std::unordered_map<SampleLocation, LocalData, std::hash<std::string>> samples;
bool LocalData::need_more_benchs() const
{
return res;
}
+std::unordered_map<SampleLocation, LocalData, std::hash<std::string>> samples;
+}
+
void smpi_sample_1(int global, const char *file, int line, int iters, double threshold)
{
SampleLocation loc(global, file, line);
} else {
// Enough data, no more bench (either we got enough data from previous visits to this benched nest, or we just
//ran one bench and need to bail out now that our job is done). Just sleep instead
- XBT_DEBUG("No benchmark (either no need, or just ran one): count >= iter (%d >= %d) or stderr<thres (%f<=%f)."
+ if (not data.need_more_benchs())
+ XBT_DEBUG("No benchmark (either no need, or just ran one): count >= iter (%d >= %d) or stderr<thres (%f<=%f)."
" apply the %fs delay instead",
data.count, data.iters, data.relstderr, data.threshold, data.mean);
+ else
+ XBT_DEBUG("Skipping - Benchmark already performed");
smpi_execute(data.mean);
smpi_process()->set_sampling(0);
res = 0; // prepare to capture future, unrelated computations
data.benching = false;
}
-extern "C" { /** These functions will be called from the user code **/
smpi_trace_call_location_t* smpi_trace_get_call_location()
{
return smpi_process()->call_location();
{
smpi_trace_set_call_location(file, *line);
}
-}
void smpi_bench_destroy()
{
samples.clear();
}
+
+int smpi_getopt_long_only (int argc, char *const *argv, const char *options,
+ const struct option * long_options, int *opt_index)
+{
+ if (smpi_process())
+ optind = smpi_process()->get_optind();
+ int ret = getopt_long_only (argc, argv, options, long_options, opt_index);
+ if (smpi_process())
+ smpi_process()->set_optind(optind);
+ return ret;
+}
+
+int smpi_getopt_long (int argc, char *const *argv, const char *options,
+ const struct option * long_options, int *opt_index)
+{
+ if (smpi_process())
+ optind = smpi_process()->get_optind();
+ int ret = getopt_long (argc, argv, options, long_options, opt_index);
+ if (smpi_process())
+ smpi_process()->set_optind(optind);
+ return ret;
+}
+
+int smpi_getopt (int argc, char *const *argv, const char *options)
+{
+ if (smpi_process())
+ optind = smpi_process()->get_optind();
+ int ret = getopt (argc, argv, options);
+ if (smpi_process())
+ smpi_process()->set_optind(optind);
+ return ret;
+}
