X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/751ae9fcfc70b0b48670338c2273e2eaebc388d2..8f4688912eba3ef24340c76b4db4a336b04a7c66:/main.cpp diff --git a/main.cpp b/main.cpp index 8b5c3bd..76125e9 100644 --- a/main.cpp +++ b/main.cpp @@ -1,5 +1,7 @@ -#include +#include +#include // strchr #include +#include #include #include #include @@ -11,6 +13,7 @@ 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_NEW_SUBCATEGORY(thrd, simu, "Messages from thread wrapper class"); XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); @@ -20,10 +23,13 @@ XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); #include "options.h" #include "process.h" #include "statistics.h" +#include "synchro.h" #include "timer.h" #include "tracing.h" #include "version.h" +#define DATA_DESCR_WIDTH 37 + namespace { // Failure exit status enum { @@ -32,14 +38,24 @@ namespace { EXIT_FAILURE_INIT = 0x02, // failed to initialize simulator EXIT_FAILURE_SIMU = 0x04, // simulation failed EXIT_FAILURE_CLEAN = 0x08, // error at cleanup + EXIT_FAILURE_OTHER = 0x10, // other error }; - xbt_mutex_t proc_mutex; - xbt_cond_t proc_cond; - unsigned proc_counter; - - struct statistics comps; - struct statistics loads; + // Cannot be globally initialized... + mutex_t* proc_mutex; + condition_t* proc_cond; + unsigned proc_counter = 0; + + statistics loads; + statistics comps; + statistics data_send_amount; + statistics data_recv_amount; + statistics data_send_count; + statistics data_recv_count; + statistics ctrl_send_amount; + statistics ctrl_recv_amount; + statistics ctrl_send_count; + statistics ctrl_recv_count; } @@ -50,15 +66,23 @@ static int simulation_main(int argc, char* argv[]) try { proc = opt::loba_algorithms.new_instance(opt::loba_algo, argc, argv); - xbt_mutex_acquire(proc_mutex); + proc_mutex->acquire(); ++proc_counter; - xbt_mutex_release(proc_mutex); + proc_mutex->release(); result = proc->run(); - xbt_mutex_acquire(proc_mutex); - comps.push(proc->get_comp()); + proc_mutex->acquire(); loads.push(proc->get_real_load()); + comps.push(proc->get_comp_amount()); + data_send_amount.push(proc->get_data_send_amount()); + data_recv_amount.push(proc->get_data_recv_amount()); + data_send_count.push(proc->get_data_send_count()); + data_recv_count.push(proc->get_data_recv_count()); + ctrl_send_amount.push(proc->get_ctrl_send_amount()); + ctrl_recv_amount.push(proc->get_ctrl_recv_amount()); + ctrl_send_count.push(proc->get_ctrl_send_count()); + ctrl_recv_count.push(proc->get_ctrl_recv_count()); // Synchronization barrier... // The goal is to circumvent a limitation in SimGrid (at least @@ -66,51 +90,75 @@ static int simulation_main(int argc, char* argv[]) // destroys a communication they had together. --proc_counter; - xbt_cond_broadcast(proc_cond); + proc_cond->broadcast(); while (proc_counter > 0) - xbt_cond_wait(proc_cond, proc_mutex); - xbt_mutex_release(proc_mutex); + proc_cond->wait(*proc_mutex); + proc_mutex->release(); delete proc; } - catch (std::invalid_argument& e) { + catch (const std::invalid_argument& e) { THROW1(arg_error, 0, "%s", e.what()); } + catch (const std::exception& e) { + THROW1(0, 0, "%s", e.what()); + } 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) - XBT_CRITICAL("Gained load at exit! %g (%g%%) <============", - -lost, -lost_ratio); + XBT_ERROR("Gained load at exit! %g (%g%%) <============", + -lost, -lost_ratio); else if (lost_ratio > opt::load_ratio_threshold) - XBT_CRITICAL("Lost load at exit! %g (%g%%) <============", - lost, lost_ratio); + XBT_ERROR("Lost load at exit! %g (%g%%) <============", + lost, lost_ratio); else XBT_VERB("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) - XBT_CRITICAL("Negative running load at exit! %g (%g%%) <============", - total_running, running_ratio); + XBT_ERROR("Negative running load at exit! %g (%g%%) <============", + total_running, running_ratio); else if (running_ratio > opt::load_ratio_threshold) - XBT_CRITICAL("Remaining running load at exit! %g (%g%%) <============", - total_running, running_ratio); + XBT_ERROR("Remaining running load at exit! %g (%g%%) <============", + total_running, running_ratio); else XBT_VERB("Running load at exit looks good: %g (%g%%)", total_running, running_ratio); } +static void signal_handler(int /*sig*/) +{ + if (!opt::exit_request) { + XBT_CRITICAL(">>>>>>>>>>" + " caught CTRL-C: global exit requested " + "<<<<<<<<<<"); + opt::exit_request = true; + } +} + +static void install_signal_handler() +{ + struct sigaction action; + action.sa_handler = signal_handler; + sigemptyset(&action.sa_mask); + action.sa_flags = SA_RESTART; + if (sigaction (SIGINT, &action, NULL) == -1) { + std::cerr << "sigaction: " << strerror(errno) << "\n"; + exit(EXIT_FAILURE_OTHER); + } +} + #define PR_STATS(descr, st) \ - XBT_INFO("| %.*s: %g / %g / %g", 39, \ - descr " total/avg./stddev. at exit.........................", \ + XBT_INFO("| %.*s: %g / %g / %g", DATA_DESCR_WIDTH, \ + descr " (total/avg./stddev)................................", \ st.get_sum(), st.get_mean(), st.get_stddev()) int main(int argc, char* argv[]) @@ -139,6 +187,7 @@ int main(int argc, char* argv[]) // Note: MSG_global_init() may throw an exception, but it seems // impossible to catch it correctly :-( MSG_global_init(&argc, argv); + install_signal_handler(); // Parse global parameters bool parse_res = opt::parse_args(&argc, argv); @@ -166,8 +215,11 @@ int main(int argc, char* argv[]) MSG_function_register_default(simulation_main); // Create the platform and the application. + XBT_DEBUG("Loading platform file..."); MSG_create_environment(opt::platform_file.c_str()); + XBT_DEBUG("Creating hostdata..."); hostdata::create(); + XBT_DEBUG("Deploying processes..."); if (opt::auto_depl::enabled) { if (!opt::auto_depl::nhosts) opt::auto_depl::nhosts = hostdata::size(); @@ -190,9 +242,8 @@ int main(int argc, char* argv[]) exit_status = EXIT_FAILURE_SIMU; // ===== - proc_mutex = xbt_mutex_init(); - proc_cond = xbt_cond_init(); - proc_counter = 0; + proc_mutex = new mutex_t(); + proc_cond = new condition_t(); // Launch the MSG simulation. XBT_INFO("Starting simulation at %f...", MSG_get_clock()); @@ -200,8 +251,8 @@ int main(int argc, char* argv[]) simulated_time = MSG_get_clock(); XBT_INFO("Simulation ended at %f.", simulated_time); - xbt_cond_destroy(proc_cond); - xbt_mutex_destroy(proc_mutex); + delete proc_cond; + delete proc_mutex; if (res != MSG_OK) THROW1(0, 0, "MSG_main() failed with status %#x", res); @@ -232,9 +283,19 @@ int main(int argc, char* argv[]) XBT_INFO(",----[ Results ]"); PR_STATS("Load", loads); PR_STATS("Computation", comps); - XBT_INFO("| Total simulated time...................: %g", + PR_STATS("Data send amount", data_send_amount); + PR_STATS("Data recv amount", data_recv_amount); + PR_STATS("Data send count", data_send_count); + PR_STATS("Data recv count", data_recv_count); + PR_STATS("Ctrl send amount", ctrl_send_amount); + PR_STATS("Ctrl recv amount", ctrl_recv_amount); + PR_STATS("Ctrl send count", ctrl_send_count); + PR_STATS("Ctrl recv count", ctrl_recv_count); + XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH, + "Total simulated time..................................", simulated_time); - XBT_INFO("| Total simulation time..................: %g", + XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH, + "Total simulation time.................................", simulation_time.duration()); XBT_INFO("`----"); }