X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/ffc874c5572820b9e2533d6e7b01602bfd5909d2..6d4707a65e4e27048bc5cb33f8db62fdb1b958a3:/main.cpp diff --git a/main.cpp b/main.cpp index 0ec5b6d..907869e 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 +19,37 @@ 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" + +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 loads; + double load_stddev; + double load_avg; +} -int simulation_main(int argc, char* argv[]) +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(); + loads.push_back(proc->get_load()); delete proc; } catch (std::invalid_argument& e) { @@ -45,6 +58,53 @@ int simulation_main(int argc, char* argv[]) return result; } +static void check_for_lost_load() +{ + 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 = 100.0 * lost / total_init; + if (lost_ratio < -opt::load_ratio_threshold) + CRITICAL2("Gained load at exit! %g (%g%%) <============", + lost, lost_ratio); + else if (lost_ratio > 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); + + 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 compute_load_imbalance() +{ + using std::tr1::bind; + using std::tr1::placeholders::_1; + + unsigned n = loads.size(); + load_avg = std::accumulate(loads.begin(), loads.end(), 0.0) / n; + + std::vector diff(loads); + std::transform(diff.begin(), diff.end(), diff.begin(), + bind(std::minus(), _1, load_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; + load_stddev = sqrt(variance); +} + int main(int argc, char* argv[]) { // Note: variables used after THROW must be declared as volatile. @@ -57,9 +117,15 @@ int main(int argc, char* argv[]) simulation_time.start(); // Set default logging parameters - // xbt_log_control_set("simu.thres:verbose"); - xbt_log_control_set("simu.fmt:'[%h %r] [%c/%p] %m%n'"); - xbt_log_control_set("main.fmt:'[%c/%p] %m%n'"); + bool do_log_control_set = true; + for (int i = 1 ; do_log_control_set && i < argc ; i++) + do_log_control_set = !(argv[i][0] == '-' && argv[i][1] != '-' && + strchr(argv[i] + 1, 'v')); + if (do_log_control_set) { + // xbt_log_control_set("simu.thres:verbose"); + xbt_log_control_set("simu.fmt:'[%h %r] [%c/%p] %m%n'"); + xbt_log_control_set("main.fmt:'[%c/%p] %m%n'"); + } // Initialize some MSG internal data. // Note: MSG_global_init() may throw an exception, but it seems @@ -67,7 +133,7 @@ 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) @@ -80,6 +146,8 @@ int main(int argc, char* argv[]) MSG_clean(); exit(parse_res ? EXIT_NO_FAILURE : EXIT_FAILURE_ARGS); } + INFO3("%s v%s (%s)", opt::program_name.c_str(), version::num.c_str(), + version::date.c_str()); opt::print(); TRY { @@ -95,8 +163,13 @@ int main(int argc, char* argv[]) if (opt::auto_depl::enabled) { if (!opt::auto_depl::nhosts) opt::auto_depl::nhosts = hostdata::size(); + if (opt::auto_depl::nhosts > hostdata::size()) { + WARN2("%u hosts is too much: limiting to %u", + opt::auto_depl::nhosts, (unsigned )hostdata::size()); + opt::auto_depl::nhosts = hostdata::size(); + } if (!opt::auto_depl::load) - opt::auto_depl::load = hostdata::size(); + opt::auto_depl::load = opt::auto_depl::nhosts; MY_launch_application(); // it is already opt::* aware... } else { MSG_launch_application(opt::deployment_file.c_str()); @@ -107,8 +180,10 @@ int main(int argc, char* argv[]) // Launch the MSG simulation. INFO1("Starting simulation at %f...", MSG_get_clock()); res = MSG_main(); - INFO1("Simulation ended at %f.", MSG_get_clock()); simulated_time = MSG_get_clock(); + INFO1("Simulation ended at %f.", simulated_time); + check_for_lost_load(); + compute_load_imbalance(); if (res != MSG_OK) THROW1(0, 0, "MSG_main() failed with status %#x", res); @@ -135,8 +210,9 @@ int main(int argc, char* argv[]) if (simulated_time >= 0.0) { simulation_time.stop(); 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); + INFO1("| Total simulated time......: %g", simulated_time); + INFO1("| Total simulation time.....: %g", simulation_time.duration()); INFO0("`----"); } if (exit_status)