X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/1017c5419ee314344cc11741052e51eca59b846e..f8daec44188cc69bbd5b05a1eebfb813a07ae495:/main.cpp diff --git a/main.cpp b/main.cpp index bce9749..c373553 100644 --- a/main.cpp +++ b/main.cpp @@ -1,4 +1,5 @@ #include +#include #include #include // strchr #include @@ -28,7 +29,7 @@ XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); #include "tracing.h" #include "version.h" -#define DATA_DESCR_WIDTH 37 +#define DATA_DESCR_WIDTH 39 namespace { // Failure exit status @@ -39,7 +40,8 @@ namespace { EXIT_FAILURE_SIMU = 0x04, // simulation failed EXIT_FAILURE_CLEAN = 0x08, // error at cleanup EXIT_FAILURE_INTR = 0x10, // interrupted by user - EXIT_FAILURE_OTHER = 0x20, // other error + EXIT_FAILURE_LOAD = 0x20, // lost load on exit + EXIT_FAILURE_OTHER = 0x40, // other error }; // Cannot be globally initialized... @@ -49,6 +51,8 @@ namespace { statistics loads; statistics comps; + statistics comp_iterations; + statistics all_comp_iterations; statistics data_send_amount; statistics data_recv_amount; statistics data_send_count; @@ -57,6 +61,7 @@ namespace { statistics ctrl_recv_amount; statistics ctrl_send_count; statistics ctrl_recv_count; + statistics convergence; } @@ -76,6 +81,8 @@ static int simulation_main(int argc, char* argv[]) proc_mutex->acquire(); loads.push(proc->get_real_load()); comps.push(proc->get_comp_amount()); + comp_iterations.push(proc->get_comp_iter()); + all_comp_iterations.push(proc->get_all_comp_iter()); 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()); @@ -84,6 +91,9 @@ static int simulation_main(int argc, char* argv[]) 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()); + double c = proc->get_convergence(); + if (c != -1.0) + convergence.push(c); // Synchronization barrier... // The goal is to circumvent a limitation in SimGrid (at least @@ -107,32 +117,38 @@ static int simulation_main(int argc, char* argv[]) return result; } -static void check_for_lost_load() +static bool check_for_lost_load() { + bool res = true; 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) + if (lost_ratio < -opt::load_ratio_threshold) { XBT_ERROR("Gained load at exit! %g (%g%%) <============", -lost, -lost_ratio); - else if (lost_ratio > opt::load_ratio_threshold) + res = false; + } else if (lost_ratio > opt::load_ratio_threshold) { XBT_ERROR("Lost load at exit! %g (%g%%) <============", lost, lost_ratio); - else + res = false; + } 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) + if (running_ratio < -opt::load_ratio_threshold) { XBT_ERROR("Negative running load at exit! %g (%g%%) <============", total_running, running_ratio); - else if (running_ratio > opt::load_ratio_threshold) + res = false; + } else if (running_ratio > opt::load_ratio_threshold) { XBT_ERROR("Remaining running load at exit! %g (%g%%) <============", total_running, running_ratio); - else + res = false; + } else XBT_VERB("Running load at exit looks good: %g (%g%%)", total_running, running_ratio); + return res; } static void signal_handler(int /*sig*/) @@ -162,9 +178,14 @@ static void install_signal_handler() } } +#define PR_VALUE(descr, format, ...) \ + XBT_INFO("| %.*s: " format, DATA_DESCR_WIDTH, \ + descr ".................................................", \ + __VA_ARGS__) + #define PR_STATS(descr, st) \ XBT_INFO("| %.*s: %g / %g / %g", DATA_DESCR_WIDTH, \ - descr " (total/avg./stddev)................................", \ + descr " (total/avg./stddev).............................", \ st.get_sum(), st.get_mean(), st.get_stddev()) int main(int argc, char* argv[]) @@ -227,6 +248,7 @@ int main(int argc, char* argv[]) MSG_create_environment(opt::platform_file.c_str()); XBT_DEBUG("Creating hostdata..."); hostdata::create(); + XBT_INFO("Loaded description of %zd hosts.", hostdata::size()); XBT_DEBUG("Deploying processes..."); if (opt::auto_depl::enabled) { if (!opt::auto_depl::nhosts) @@ -236,8 +258,19 @@ int main(int argc, char* argv[]) opt::auto_depl::nhosts, hostdata::size()); opt::auto_depl::nhosts = hostdata::size(); } - if (!opt::auto_depl::load) + if (opt::auto_depl::load == 0.0) { + XBT_WARN("Initial load is zero! " + "Falling back on old behaviour (load = nhosts)."); opt::auto_depl::load = opt::auto_depl::nhosts; + } else if (opt::auto_depl::load < 0.0) + opt::auto_depl::load = + -opt::auto_depl::load * opt::auto_depl::nhosts; + double iload = std::trunc(opt::auto_depl::load); + if (opt::integer_transfer && opt::auto_depl::load != iload) { + XBT_WARN("Total load %g is not an integer. Truncate it.", + opt::auto_depl::load); + opt::auto_depl::load = iload; + } MY_launch_application(); // it is already opt::* aware... } else { MSG_launch_application(opt::deployment_file.c_str()); @@ -288,10 +321,14 @@ int main(int argc, char* argv[]) if (simulated_time >= 0.0) { simulation_time.stop(); elapsed_time.stop(); - check_for_lost_load(); + if (!check_for_lost_load()) + exit_status |= EXIT_FAILURE_LOAD; + XBT_INFO(",----[ Results ]"); PR_STATS("Load", loads); PR_STATS("Computation", comps); + PR_STATS("Comp. iterations", comp_iterations); + PR_STATS("X-Comp. iterations", all_comp_iterations); PR_STATS("Data send amount", data_send_amount); PR_STATS("Data recv amount", data_recv_amount); PR_STATS("Data send count", data_send_count); @@ -300,16 +337,27 @@ int main(int argc, char* argv[]) 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("| %.*s: %g", DATA_DESCR_WIDTH, - "Total simulation time.................................", - simulation_time.duration()); - XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH, - "Elapsed (wall clock) time.............................", - elapsed_time.duration()); + PR_VALUE("Total simulated time", "%g", simulated_time); + PR_VALUE("Total simulation time", "%g", simulation_time.duration()); + PR_VALUE("Elapsed (wall clock) time", "%g", elapsed_time.duration()); + XBT_INFO("`----"); + + double load_imbalance = 100.0 * loads.get_stddev() / loads.get_mean(); + double transfer_amount = + data_send_amount.get_sum() / opt::comm_cost(loads.get_sum()); + + XBT_INFO(",----[ Useful metrics ]"); + PR_VALUE("Final load imbalance", "%g %s", load_imbalance, + "percent of the load average"); + PR_VALUE("Data transfer amount", "%g %s", transfer_amount, + "times the total amount of data"); + PR_VALUE("Number of hosts that converged", "%u / %u", + convergence.get_count(), loads.get_count()); + PR_VALUE("Times of convergence (min/max/avg/dev)", "%g / %g / %g / %g", + convergence.get_min(), convergence.get_max(), + convergence.get_mean(), convergence.get_stddev()); XBT_INFO("`----"); + } if (exit_status) XBT_ERROR("Simulation failed (%#x).", exit_status);