Short documentation for makhoul3, and reindentation.

[loba.git] / main.cpp

diff --git a/main.cpp b/main.cpp
index ff1fa1bb27f0708b1f2eb1b9ecac24c9e41f7b24..478d1e870fec04d34ae80e461275d400e8aa0e46 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -1,4 +1,7 @@
-#include <cstring>
+#include <cerrno>
+#include <cmath>
+#include <csignal>
+#include <cstring>              // strchr

 #include <iostream>
 #include <stdexcept>
 #include <msg/msg.h>
 #include <iostream>
 #include <stdexcept>
 #include <msg/msg.h>


@@ -36,6 +39,9 @@ namespace {
         EXIT_FAILURE_INIT  = 0x02,  // failed to initialize simulator
         EXIT_FAILURE_SIMU  = 0x04,  // simulation failed
         EXIT_FAILURE_CLEAN = 0x08,  // error at cleanup
         EXIT_FAILURE_INIT  = 0x02,  // failed to initialize simulator
         EXIT_FAILURE_SIMU  = 0x04,  // simulation failed
         EXIT_FAILURE_CLEAN = 0x08,  // error at cleanup

+        EXIT_FAILURE_INTR  = 0x10,  // interrupted by user
+        EXIT_FAILURE_LOAD  = 0x20,  // lost load on exit
+        EXIT_FAILURE_OTHER = 0x40,  // other error

     };
 
     // Cannot be globally initialized...
     };
 
     // Cannot be globally initialized...


@@ -95,40 +101,73 @@ static int simulation_main(int argc, char* argv[])
         delete proc;
     }
     catch (const std::invalid_argument& e) {
         delete proc;
     }
     catch (const std::invalid_argument& e) {

-        THROW1(arg_error, 0, "%s", e.what());
+        THROWF(arg_error, 0, "%s", e.what());

     }
     catch (const std::exception& e) {
     }
     catch (const std::exception& e) {

-        THROW1(0, 0, "%s", e.what());
+        THROWF(0, 0, "%s", e.what());

     }
     return result;
 }
 
     }
     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;
     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);
         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);
         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;
         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);
         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);
         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);
         XBT_VERB("Running load at exit looks good: %g (%g%%)",
                  total_running, running_ratio);

+    return res;
+}
+
+static void signal_handler(int /*sig*/)
+{
+    if (!opt::exit_request) {
+        XBT_CRITICAL(">>>>>>>>>>"
+                     " caught CTRL-C: global exit requested "
+                     "<<<<<<<<<<");
+        opt::exit_request = 1;
+    } else {
+        XBT_CRITICAL(">>>>>>>>>>"
+                     " caught CTRL-C for the 2nd time: exit immediately "
+                     "<<<<<<<<<<");
+        exit(EXIT_FAILURE_INTR);
+    }
+}
+
+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)                                             \
 }
 
 #define PR_STATS(descr, st)                                             \


@@ -141,10 +180,12 @@ int main(int argc, char* argv[])
     // Note: variables used after THROW must be declared as volatile.
     volatile int exit_status = 0;   // global exit status
     volatile double simulated_time = -1.0;
     // Note: variables used after THROW must be declared as volatile.
     volatile int exit_status = 0;   // global exit status
     volatile double simulated_time = -1.0;

-    timestamp simulation_time;
+    timestamp elapsed_time(timestamp::wallclock_time);
+    timestamp simulation_time(timestamp::cpu_time);

     xbt_ex_t ex;
     MSG_error_t res;
 
     xbt_ex_t ex;
     MSG_error_t res;
 

+    elapsed_time.start();

     simulation_time.start();
 
     // Set default logging parameters
     simulation_time.start();
 
     // Set default logging parameters


@@ -162,6 +203,7 @@ 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);
     // 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);
 
     // Parse global parameters
     bool parse_res = opt::parse_args(&argc, argv);


@@ -193,6 +235,7 @@ int main(int argc, char* argv[])
         MSG_create_environment(opt::platform_file.c_str());
         XBT_DEBUG("Creating hostdata...");
         hostdata::create();
         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)
         XBT_DEBUG("Deploying processes...");
         if (opt::auto_depl::enabled) {
             if (!opt::auto_depl::nhosts)


@@ -202,17 +245,28 @@ int main(int argc, char* argv[])
                          opt::auto_depl::nhosts, hostdata::size());
                 opt::auto_depl::nhosts = hostdata::size();
             }
                          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;
                 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());
         }
 
         // Register tracing categories
             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);
+        TRACE_category_with_color(TRACE_CAT_COMP, TRACE_COLOR_COMP);
+        TRACE_category_with_color(TRACE_CAT_CTRL, TRACE_COLOR_CTRL);
+        TRACE_category_with_color(TRACE_CAT_DATA, TRACE_COLOR_DATA);

 
         exit_status = EXIT_FAILURE_SIMU; // =====
 
 
         exit_status = EXIT_FAILURE_SIMU; // =====
 


@@ -229,7 +283,7 @@ int main(int argc, char* argv[])
         delete proc_mutex;
 
         if (res != MSG_OK)
         delete proc_mutex;
 
         if (res != MSG_OK)

-            THROW1(0, 0, "MSG_main() failed with status %#x", res);
+            THROWF(0, 0, "MSG_main() failed with status %#x", res);

 
         exit_status = EXIT_NO_FAILURE; // =====
     }
 
         exit_status = EXIT_NO_FAILURE; // =====
     }


@@ -253,7 +307,9 @@ int main(int argc, char* argv[])
     // Report final simulation status.
     if (simulated_time >= 0.0) {
         simulation_time.stop();
     // Report final simulation status.
     if (simulated_time >= 0.0) {
         simulation_time.stop();

-        check_for_lost_load();
+        elapsed_time.stop();
+        if (!check_for_lost_load())
+            exit_status |= EXIT_FAILURE_LOAD;

         XBT_INFO(",----[ Results ]");
         PR_STATS("Load", loads);
         PR_STATS("Computation", comps);
         XBT_INFO(",----[ Results ]");
         PR_STATS("Load", loads);
         PR_STATS("Computation", comps);


@@ -271,6 +327,9 @@ int main(int argc, char* argv[])
         XBT_INFO("| %.*s: %g", DATA_DESCR_WIDTH,
                  "Total simulation time.................................",
                  simulation_time.duration());
         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());

         XBT_INFO("`----");
     }
     if (exit_status)
         XBT_INFO("`----");
     }
     if (exit_status)