-#include <algorithm>
-#include <cmath>
#include <cstring>
-#include <tr1/functional>
#include <iostream>
-#include <numeric>
#include <stdexcept>
-#include <vector>
#include <msg/msg.h>
#include <xbt/log.h>
#include "misc.h"
#include "options.h"
#include "process.h"
+#include "statistics.h"
#include "timer.h"
+#include "tracing.h"
#include "version.h"
namespace {
EXIT_FAILURE_CLEAN = 0x08, // error at cleanup
};
- std::vector<double> comps;
- double comp_total;
- double comp_avg;
- double comp_stddev;
+ xbt_mutex_t proc_mutex;
+ xbt_cond_t proc_cond;
+ unsigned proc_counter;
+
+ struct statistics comps;
+ struct statistics loads;
- std::vector<double> loads;
- double load_avg;
- double load_stddev;
}
static int simulation_main(int argc, char* argv[])
process* proc;
try {
proc = opt::loba_algorithms.new_instance(opt::loba_algo, argc, argv);
+
+ xbt_mutex_acquire(proc_mutex);
+ ++proc_counter;
+ xbt_mutex_release(proc_mutex);
+
result = proc->run();
- comps.push_back(proc->get_comp());
- loads.push_back(proc->get_load());
+
+ xbt_mutex_acquire(proc_mutex);
+ comps.push(proc->get_comp());
+ loads.push(proc->get_real_load());
+
+ // Synchronization barrier...
+ // The goal is to circumvent a limitation in SimGrid (at least
+ // in version 3.5): a process must be alive when another one
+ // destroys a communication they had together.
+
+ --proc_counter;
+ xbt_cond_broadcast(proc_cond);
+ while (proc_counter > 0)
+ xbt_cond_wait(proc_cond, proc_mutex);
+ xbt_mutex_release(proc_mutex);
+
delete proc;
}
catch (std::invalid_argument& e) {
double lost_ratio = 100.0 * lost / total_init;
if (lost_ratio < -opt::load_ratio_threshold)
CRITICAL2("Gained load at exit! %g (%g%%) <============",
- lost, lost_ratio);
+ -lost, -lost_ratio);
else if (lost_ratio > opt::load_ratio_threshold)
CRITICAL2("Lost load at exit! %g (%g%%) <============",
lost, lost_ratio);
else
- DEBUG2("Total load at exit looks good: %g (%g%%)", lost, lost_ratio);
+ VERB2("Total load at exit looks good: %g (%g%%)", lost, lost_ratio);
double total_running = process::get_total_load_running();
double running_ratio = 100.0 * total_running / total_init;
CRITICAL2("Remaining running load at exit! %g (%g%%) <============",
total_running, running_ratio);
else
- DEBUG2("Running load at exit looks good: %g (%g%%)",
+ VERB2("Running load at exit looks good: %g (%g%%)",
total_running, running_ratio);
}
-static void statistics(const std::vector<double>& vec,
- double* sum, double* avg, double* stddev)
-{
- using std::tr1::bind;
- using std::tr1::placeholders::_1;
-
- unsigned n = vec.size();
- double vec_sum = std::accumulate(vec.begin(), vec.end(), 0.0);
- double vec_avg = vec_sum / n;
-
- if (sum)
- *sum = vec_sum;
- if (avg)
- *avg = vec_avg;
-
- if (stddev) {
- std::vector<double> diff(vec);
- std::transform(diff.begin(), diff.end(), diff.begin(),
- bind(std::minus<double>(), _1, vec_avg));
- double epsilon = std::accumulate(diff.begin(), diff.end(), 0.0);
- double square_sum = std::inner_product(diff.begin(), diff.end(),
- diff.begin(), 0.0);
- double variance = (square_sum - (epsilon * epsilon) / n) / n;
- *stddev = sqrt(variance);
- }
-}
-
-static void compute_metrics()
-{
- statistics(comps, &comp_total, &comp_avg, &comp_stddev);
- statistics(loads, NULL, &load_avg, &load_stddev);
-}
+#define PR_STATS(descr, st) \
+ INFO5("| %.*s: %g / %g / %g", 39, \
+ descr " total/avg./stddev. at exit.........................", \
+ st.get_sum(), st.get_mean(), st.get_stddev())
int main(int argc, char* argv[])
{
MSG_launch_application(opt::deployment_file.c_str());
}
+ // Register tracing categories
+ TRACE_category(TRACE_CAT_COMP);
+ TRACE_category(TRACE_CAT_CTRL);
+ TRACE_category(TRACE_CAT_DATA);
+
exit_status = EXIT_FAILURE_SIMU; // =====
+ proc_mutex = xbt_mutex_init();
+ proc_cond = xbt_cond_init();
+ proc_counter = 0;
+
// Launch the MSG simulation.
INFO1("Starting simulation at %f...", MSG_get_clock());
res = MSG_main();
simulated_time = MSG_get_clock();
INFO1("Simulation ended at %f.", simulated_time);
+
+ xbt_cond_destroy(proc_cond);
+ xbt_mutex_destroy(proc_mutex);
+
if (res != MSG_OK)
THROW1(0, 0, "MSG_main() failed with status %#x", res);
if (simulated_time >= 0.0) {
simulation_time.stop();
check_for_lost_load();
- compute_metrics();
INFO0(",----[ Results ]");
- INFO2("| Load avg./stddev. at exit..............: %g / %g",
- load_avg, load_stddev);
- INFO3("| Computation total/avg./stddev. at exit.: %g / %g / %g",
- comp_total, comp_avg, comp_stddev);
+ PR_STATS("Load", loads);
+ PR_STATS("Computation", comps);
INFO1("| Total simulated time...................: %g", simulated_time);
INFO1("| Total simulation time..................: %g",
simulation_time.duration());
