-/* 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 "simgrid/modelchecker.h"
#include "simgrid/s4u/Exec.hpp"
#include "smpi_comm.hpp"
+#include "smpi_utils.hpp"
#include "src/internal_config.h"
#include "src/mc/mc_replay.hpp"
#include "xbt/config.hpp"
+#include "xbt/file.hpp"
#include "src/smpi/include/smpi_actor.hpp"
#include <unordered_map>
#ifndef WIN32
#include <sys/mman.h>
#endif
+#include <cerrno>
#include <cmath>
#if HAVE_PAPI
"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;
-
-SharedMallocType smpi_cfg_shared_malloc = SharedMallocType::GLOBAL;
-double smpi_total_benched_time = 0;
-
-// Private execute_flops used by smpi_execute and spmi_execute benched
+// Private execute_flops used by smpi_execute and smpi_execute_benched
void private_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);
smpi_switch_data_segment(simgrid::s4u::Actor::self());
}
-void smpi_execute_flops(double flops) {
- int rank = simgrid::s4u::this_actor::get_pid();
- TRACE_smpi_computing_in(rank, flops);
-
+void smpi_execute_flops(double flops)
+{
private_execute_flops(flops);
-
- TRACE_smpi_computing_out(rank);
}
void smpi_execute(double duration)
{
- if (duration >= smpi_cpu_threshold) {
+ if (duration >= smpi_cfg_cpu_thresh()) {
XBT_DEBUG("Sleep for %g to handle real computation time", duration);
- double flops = duration * smpi_host_speed;
- int rank = simgrid::s4u::this_actor::get_pid();
- TRACE_smpi_computing_in(rank, flops);
-
- private_execute_flops(flops);
-
- TRACE_smpi_computing_out(rank);
-
+ private_execute_flops(duration * smpi_cfg_host_speed());
} else {
XBT_DEBUG("Real computation took %g while option smpi/cpu-threshold is set to %g => ignore it", duration,
- smpi_cpu_threshold);
+ smpi_cfg_cpu_thresh());
}
}
void smpi_execute_benched(double duration)
{
smpi_bench_end();
- double speed = sg_host_speed(sg_host_self());
+ double speed = sg_host_get_speed(sg_host_self());
smpi_execute_flops(duration*speed);
smpi_bench_begin();
}
+void smpi_execute_flops_benched(double flops) {
+ smpi_bench_end();
+ smpi_execute_flops(flops);
+ smpi_bench_begin();
+}
+
void smpi_bench_begin()
{
- if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
+ if (smpi_cfg_privatization() == SmpiPrivStrategies::MMAP) {
smpi_switch_data_segment(simgrid::s4u::Actor::self());
}
return;
#if HAVE_PAPI
- if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
+ if (not smpi_cfg_papi_events_file().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() && 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() && event_set)
+ xbt_assert(PAPI_start(event_set) == PAPI_OK,
+ "Could not start PAPI counters (TODO: this needs some proper handling).");
}
#endif
xbt_os_threadtimer_start(smpi_process()->timer());
}
+double smpi_adjust_comp_speed(){
+ double speedup=1;
+ if (smpi_cfg_comp_adjustment_file()[0] != '\0') {
+ const smpi_trace_call_location_t* loc = smpi_process()->call_location();
+ std::string key = loc->get_composed_key();
+ std::unordered_map<std::string, double>::const_iterator it = location2speedup.find(key);
+ if (it != location2speedup.end()) {
+ speedup = it->second;
+ }
+ }
+ return speedup;
+}
+
void smpi_bench_end()
{
if (MC_is_active() || MC_record_replay_is_active())
return;
- double speedup = 1;
xbt_os_timer_t timer = smpi_process()->timer();
xbt_os_threadtimer_stop(timer);
* An MPI function has been called and now is the right time to update
* our PAPI counters for this process.
*/
- if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty()) {
+ if (not smpi_cfg_papi_events_file().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());
+ std::vector<long long> event_values(counter_data.size());
- if (PAPI_stop(event_set, &event_values[0]) != PAPI_OK) { // Error
- XBT_CRITICAL("Could not stop PAPI counters.\n");
- xbt_die("Error.");
- } else {
- for (unsigned int i = 0; i < counter_data.size(); i++) {
- counter_data[i].second += event_values[i];
- }
- }
+ if (event_set)
+ xbt_assert(PAPI_stop(event_set, &event_values[0]) == PAPI_OK, "Could not stop PAPI counters.");
+ for (unsigned int i = 0; i < counter_data.size(); i++)
+ counter_data[i].second += event_values[i];
}
#endif
if (smpi_process()->sampling()) {
XBT_CRITICAL("Cannot do recursive benchmarks.");
- XBT_CRITICAL("Are you trying to make a call to MPI within a SMPI_SAMPLE_ block?");
+ XBT_CRITICAL("Are you trying to make a call to MPI within an SMPI_SAMPLE_ block?");
xbt_backtrace_display_current();
xbt_die("Aborting.");
}
// 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();
- std::unordered_map<std::string, double>::const_iterator it = location2speedup.find(key);
- if (it != location2speedup.end()) {
- speedup = it->second;
- }
- }
-
// Simulate the benchmarked computation unless disabled via command-line argument
- if (simgrid::config::get_value<bool>("smpi/simulate-computation")) {
- smpi_execute(xbt_os_timer_elapsed(timer)/speedup);
+ if (smpi_cfg_simulate_computation()) {
+ smpi_execute(xbt_os_timer_elapsed(timer)/smpi_adjust_comp_speed());
}
#if HAVE_PAPI
- if (not simgrid::config::get_value<std::string>("smpi/papi-events").empty() && TRACE_smpi_is_enabled()) {
- container_t container =
+ if (not smpi_cfg_papi_events_file().empty() && TRACE_smpi_is_enabled()) {
+ simgrid::instr::Container* container =
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();
+ const papi_counter_t& counter_data = smpi_process()->papi_counters();
for (auto const& pair : counter_data) {
- simgrid::instr::VariableType* variable = static_cast<simgrid::instr::VariableType*>(container->type_->by_name(pair.first));
- variable->set_event(SIMIX_get_clock(), pair.second);
+ container->get_variable(pair.first)->set_event(SIMIX_get_clock(), pair.second);
}
}
#endif
- smpi_total_benched_time += xbt_os_timer_elapsed(timer);
+ simgrid::smpi::utils::add_benched_time(xbt_os_timer_elapsed(timer));
}
/* Private sleep function used by smpi_sleep(), smpi_usleep() and friends */
smpi_bench_end();
XBT_DEBUG("Sleep for: %lf secs", secs);
- int rank = simgrid::s4u::this_actor::get_pid();
- TRACE_smpi_sleeping_in(rank, secs);
+ aid_t pid = simgrid::s4u::this_actor::get_pid();
+ TRACE_smpi_sleeping_in(pid, secs);
simgrid::s4u::this_actor::sleep_for(secs);
- TRACE_smpi_sleeping_out(rank);
+ TRACE_smpi_sleeping_out(pid);
smpi_bench_begin();
return 0;
int smpi_gettimeofday(struct timeval* tv, struct timezone* tz)
{
- if (not smpi_process())
+ if (not smpi_process()->initialized() || smpi_process()->finalized() || smpi_process()->sampling())
return gettimeofday(tv, tz);
smpi_bench_end();
#if _POSIX_TIMERS > 0
int smpi_clock_gettime(clockid_t clk_id, struct timespec* tp)
{
- if (not smpi_process())
+ if (not tp) {
+ errno = EFAULT;
+ return -1;
+ }
+ if (not smpi_process()->initialized() || smpi_process()->finalized() || smpi_process()->sampling())
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();
- if (tp) {
- tp->tv_sec = static_cast<time_t>(now);
- tp->tv_nsec = static_cast<long int>((now - tp->tv_sec) * 1e9);
- }
+ 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)
simgrid::s4u::this_actor::sleep_for(smpi_wtime_sleep);
smpi_bench_begin();
smpi_bench_end();
double now = SIMIX_get_clock();
- unsigned long long sec = static_cast<unsigned long long>(now);
+ auto sec = static_cast<unsigned long long>(now);
unsigned long long pre = (now - sec) * smpi_rastro_resolution();
smpi_bench_begin();
- return static_cast<unsigned long long>(sec) * smpi_rastro_resolution() + pre;
+ return sec * smpi_rastro_resolution() + pre;
}
/* ****************************** Functions related to the SMPI_SAMPLE_ macros ************************************/
0, // count
true // benching (if we have no data, we need at least one)
});
- LocalData& data = insert.first->second;
if (insert.second) {
XBT_DEBUG("XXXXX First time ever on benched nest %s.", loc.c_str());
xbt_assert(threshold > 0 || iters > 0,
"You should provide either a positive amount of iterations to bench, or a positive maximal stderr (or both)");
} else {
+ LocalData& data = insert.first->second;
if (data.iters != iters || data.threshold != threshold) {
XBT_ERROR("Asked to bench block %s with different settings %d, %f is not %d, %f. "
"How did you manage to give two numbers at the same line??",
XBT_DEBUG("sample2 %s %d", loc.c_str(), iter_count);
auto sample = samples.find(loc);
- if (sample == samples.end())
- xbt_die("Y U NO use SMPI_SAMPLE_* macros? Stop messing directly with smpi_sample_* functions!");
- LocalData& data = sample->second;
+ xbt_assert(sample != samples.end(),
+ "Y U NO use SMPI_SAMPLE_* macros? Stop messing directly with smpi_sample_* functions!");
+ const LocalData& data = sample->second;
if (data.benching) {
// we need to run a new bench
XBT_DEBUG("sample3 %s", loc.c_str());
auto sample = samples.find(loc);
- if (sample == samples.end())
- xbt_die("Y U NO use SMPI_SAMPLE_* macros? Stop messing directly with smpi_sample_* functions!");
+ xbt_assert(sample != samples.end(),
+ "Y U NO use SMPI_SAMPLE_* macros? Stop messing directly with smpi_sample_* functions!");
LocalData& data = sample->second;
if (not data.benching)
XBT_DEBUG("sample exit %s", loc.c_str());
auto sample = samples.find(loc);
- if (sample == samples.end())
- xbt_die("Y U NO use SMPI_SAMPLE_* macros? Stop messing directly with smpi_sample_* functions!");
- LocalData& data = sample->second;
-
+ xbt_assert(sample != samples.end(),
+ "Y U NO use SMPI_SAMPLE_* macros? Stop messing directly with smpi_sample_* functions!");
+
if (smpi_process()->sampling()){//end of loop, but still sampling needed
- smpi_process()->set_sampling(0);
- smpi_execute(data.mean*iter_count);
- smpi_bench_begin();
+ const LocalData& data = sample->second;
+ smpi_process()->set_sampling(0);
+ smpi_execute(data.mean * iter_count);
+ smpi_bench_begin();
}
}
return 0;
loc->previous_filename = loc->filename;
loc->previous_linenumber = loc->linenumber;
- loc->filename = file;
- loc->linenumber = line;
+ if(not smpi_cfg_trace_call_use_absolute_path())
+ loc->filename = simgrid::xbt::Path(file).get_base_name();
+ else
+ loc->filename = file;
+ loc->linenumber = line;
}
/** Required for Fortran bindings */
-void smpi_trace_set_call_location_(const char* file, int* line)
+void smpi_trace_set_call_location_(const char* file, const int* line)
{
smpi_trace_set_call_location(file, *line);
}
/** Required for Fortran if -fsecond-underscore is activated */
-void smpi_trace_set_call_location__(const char* file, int* line)
+void smpi_trace_set_call_location__(const char* file, const int* line)
{
smpi_trace_set_call_location(file, *line);
}
