X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/46ef54f8ce05841e476c3cd9d425a9c680a84882..4fe47748b018bd1d159839fe9e2bb6685a895e85:/main.cpp?ds=inline diff --git a/main.cpp b/main.cpp index 3ee3ae1..92e4882 100644 --- a/main.cpp +++ b/main.cpp @@ -1,15 +1,13 @@ +#include +#include #include +#include #include +#include #include +#include #include #include -#include "deployment.h" -#include "hostdata.h" -#include "misc.h" -#include "options.h" -#include "process.h" -#include "timer.h" -#include "version.h" // Creates log categories XBT_LOG_NEW_CATEGORY(simu, "Root of simulation messages"); @@ -21,22 +19,43 @@ XBT_LOG_NEW_SUBCATEGORY(loba, simu, "Messages from load-balancer"); XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); -// Failure exit status -enum { - EXIT_NO_FAILURE = 0x00, // no error - EXIT_FAILURE_ARGS = 0x01, // bad arguments - EXIT_FAILURE_INIT = 0x02, // failed to initialize simulator - EXIT_FAILURE_SIMU = 0x04, // simulation failed - EXIT_FAILURE_CLEAN = 0x08, // error at cleanup -}; +#include "deployment.h" +#include "hostdata.h" +#include "misc.h" +#include "options.h" +#include "process.h" +#include "timer.h" +#include "version.h" -int simulation_main(int argc, char* argv[]) +namespace { + // Failure exit status + enum { + EXIT_NO_FAILURE = 0x00, // no error + EXIT_FAILURE_ARGS = 0x01, // bad arguments + EXIT_FAILURE_INIT = 0x02, // failed to initialize simulator + EXIT_FAILURE_SIMU = 0x04, // simulation failed + EXIT_FAILURE_CLEAN = 0x08, // error at cleanup + }; + + std::vector comps; + double comp_total; + double comp_avg; + double comp_stddev; + + std::vector loads; + double load_avg; + double load_stddev; +} + +static int simulation_main(int argc, char* argv[]) { int result; process* proc; try { proc = opt::loba_algorithms.new_instance(opt::loba_algo, argc, argv); result = proc->run(); + comps.push_back(proc->get_comp()); + loads.push_back(proc->get_load()); delete proc; } catch (std::invalid_argument& e) { @@ -45,23 +64,66 @@ int simulation_main(int argc, char* argv[]) return result; } -void check_for_lost_load() +static void check_for_lost_load() { - const double threshold = 1e-4; double total_init = process::get_total_load_init(); + double total_exit = process::get_total_load_exit(); double lost = total_init - total_exit; - double lost_ratio = 100 * lost / total_init; - if (lost_ratio < -threshold) { + 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); - } else if (lost_ratio > threshold) { + else if (lost_ratio > opt::load_ratio_threshold) CRITICAL2("Lost load at exit! %g (%g%%) <============", lost, lost_ratio); - } else { + else DEBUG2("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; + if (running_ratio < -opt::load_ratio_threshold) + CRITICAL2("Negative running load at exit! %g (%g%%) <============", + total_running, running_ratio); + else if (running_ratio > opt::load_ratio_threshold) + CRITICAL2("Remaining running load at exit! %g (%g%%) <============", + total_running, running_ratio); + else + DEBUG2("Running load at exit looks good: %g (%g%%)", + total_running, running_ratio); +} + +static void statistics(const std::vector& 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 diff(vec); + std::transform(diff.begin(), diff.end(), diff.begin(), + bind(std::minus(), _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); } int main(int argc, char* argv[]) @@ -92,7 +154,7 @@ int main(int argc, char* argv[]) MSG_global_init(&argc, argv); // Parse global parameters - int parse_res = opt::parse_args(&argc, argv); + bool parse_res = opt::parse_args(&argc, argv); if (!parse_res || opt::version_requested || opt::help_requested) { if (opt::version_requested) @@ -141,7 +203,6 @@ int main(int argc, char* argv[]) res = MSG_main(); simulated_time = MSG_get_clock(); INFO1("Simulation ended at %f.", simulated_time); - check_for_lost_load(); if (res != MSG_OK) THROW1(0, 0, "MSG_main() failed with status %#x", res); @@ -167,9 +228,16 @@ int main(int argc, char* argv[]) // Report final simulation status. if (simulated_time >= 0.0) { simulation_time.stop(); + check_for_lost_load(); + compute_metrics(); INFO0(",----[ Results ]"); - INFO1("| Total simulated time...: %g", simulated_time); - INFO1("| Total simulation time..: %g", simulation_time.duration()); + 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); + INFO1("| Total simulated time...................: %g", simulated_time); + INFO1("| Total simulation time..................: %g", + simulation_time.duration()); INFO0("`----"); } if (exit_status)