X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/147d0e88c4da14c801d15e0875bedb474180bea2..cd488767770ec6e9fb9437dcdd589af3fb02fbb7:/main.cpp?ds=sidebyside diff --git a/main.cpp b/main.cpp index 314cac2..8a23727 100644 --- a/main.cpp +++ b/main.cpp @@ -1,32 +1,106 @@ +#include #include #include +#include +#include +#include #include #include + +// Creates log categories +XBT_LOG_NEW_CATEGORY(simu, "Root of simulation messages"); +XBT_LOG_NEW_SUBCATEGORY(main, simu, "Messages from global infrastructure"); +XBT_LOG_NEW_SUBCATEGORY(depl, main, "Messages from auto deployment"); +XBT_LOG_NEW_SUBCATEGORY(comm, simu, "Messages from asynchronous pipes"); +XBT_LOG_NEW_SUBCATEGORY(proc, simu, "Messages from base process class"); +XBT_LOG_NEW_SUBCATEGORY(loba, simu, "Messages from load-balancer"); + +XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); + +#include "deployment.h" +#include "hostdata.h" #include "misc.h" #include "options.h" #include "process.h" #include "timer.h" #include "version.h" -// Creates a new log category and makes it the default -XBT_LOG_NEW_DEFAULT_CATEGORY(simu, "Simulation messages"); +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; +} -// 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 -}; +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) { + THROW1(arg_error, 0, "%s", e.what()); + } + return result; +} -int simulation_main(int argc, char *argv[]) +static void check_for_lost_load() { - process proc(argc, argv); - return proc.run(); + 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); } -int main(int argc, char *argv[]) +static void compute_load_imbalance() +{ + unsigned n = loads.size(); + load_avg = std::accumulate(loads.begin(), loads.end(), 0.0) / n; + double variance = 0.0; + double epsilon = 0.0; + for (unsigned i = 0 ; i < n ; ++i) { + double diff = loads[i] - load_avg; + variance += diff * diff; + epsilon += diff; + } + variance = (variance - (epsilon * epsilon) / n) / n; + load_stddev = sqrt(variance); +} + +int main(int argc, char* argv[]) { // Note: variables used after THROW must be declared as volatile. volatile int exit_status = 0; // global exit status @@ -38,8 +112,15 @@ int main(int argc, char *argv[]) simulation_time.start(); // Set default logging parameters - // xbt_log_control_set("simu.thres:verbose"); + 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 @@ -47,11 +128,12 @@ 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) - std::clog << version::name << " version " << version::num << "\n" + std::clog << version::name << " (" << opt::program_name << ")" + << " version " << version::num << "\n" << version::copyright << "\n" "Compiled on " << version::date << "\n\n"; if (!parse_res || opt::help_requested) @@ -59,35 +141,44 @@ 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 { exit_status = EXIT_FAILURE_INIT; // ===== - // Register the main function of an agent in a global table. - MSG_function_register("simulation_main", simulation_main); - // Preserve some compatibility with old code... - MSG_function_register("Calculs", simulation_main); + // Register the default function of an agent + // MSG_function_register("simulation_main", simulation_main); + MSG_function_register_default(simulation_main); // Create the platform and the application. - MSG_create_environment(opt::platform_file); - if (LOG_ISENABLED(xbt_log_priority_verbose)) { - int n = MSG_get_host_number(); - m_host_t *h = MSG_get_host_table(); - VERB1("Got %d hosts.", n); - for (int i = 0; i < n; i++) - VERB2("Host #%d named \"%s\".", i, MSG_host_get_name(h[i])); - xbt_free(h); + MSG_create_environment(opt::platform_file.c_str()); + hostdata::create(); + 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 = opt::auto_depl::nhosts; + MY_launch_application(); // it is already opt::* aware... + } else { + MSG_launch_application(opt::deployment_file.c_str()); } - MSG_launch_application(opt::application_file); exit_status = EXIT_FAILURE_SIMU; // ===== // Launch the MSG simulation. - INFO0("Starting simulation..."); + INFO1("Starting simulation at %f...", MSG_get_clock()); res = MSG_main(); - INFO0("Simulation ended."); 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); @@ -103,6 +194,7 @@ int main(int argc, char *argv[]) } // Clean the MSG simulation. + hostdata::destroy(); res = MSG_clean(); if (res != MSG_OK) { ERROR1("MSG_clean() failed with status %#x", res); @@ -113,8 +205,9 @@ 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)