X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/c4e7c13743a9d1e8dfa5dc27d4b2fa3aaf1557ab..596a21890fc3cae8f7ec57c76224b300c246ed1f:/main.cpp diff --git a/main.cpp b/main.cpp index 3ba517c..fc42d75 100644 --- a/main.cpp +++ b/main.cpp @@ -3,39 +3,74 @@ #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 "statistics.h" #include "timer.h" +#include "tracing.h" #include "version.h" -// Creates log categories -XBT_LOG_NEW_CATEGORY(simu, "Simulation messages"); -XBT_LOG_NEW_SUBCATEGORY(main, simu, "Messages from global infrastructure"); -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"); +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 + }; -XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); + xbt_mutex_t proc_mutex; + xbt_cond_t proc_cond; + unsigned proc_counter; + + struct statistics comps; + struct statistics loads; -// 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 -}; +} -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); + + xbt_mutex_acquire(proc_mutex); + ++proc_counter; + xbt_mutex_release(proc_mutex); + result = proc->run(); + + 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) { @@ -44,6 +79,40 @@ 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 + 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; + 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 + VERB2("Running load at exit looks good: %g (%g%%)", + total_running, running_ratio); +} + +#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[]) { // Note: variables used after THROW must be declared as volatile. @@ -56,9 +125,15 @@ 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 @@ -66,7 +141,7 @@ 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) @@ -79,6 +154,8 @@ 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 { @@ -94,20 +171,38 @@ 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()); } + // 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(); - INFO1("Simulation ended at %f.", MSG_get_clock()); 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); @@ -133,9 +228,13 @@ int main(int argc, char* argv[]) // Report final simulation status. if (simulated_time >= 0.0) { simulation_time.stop(); + check_for_lost_load(); INFO0(",----[ Results ]"); - INFO1("| Total simulated time...: %g", simulated_time); - INFO1("| Total simulation time..: %g", simulation_time.duration()); + PR_STATS("Load", loads); + PR_STATS("Computation", comps); + INFO1("| Total simulated time...................: %g", simulated_time); + INFO1("| Total simulation time..................: %g", + simulation_time.duration()); INFO0("`----"); } if (exit_status)