examples/simdag/sd_fail.c

   1 /* Copyright (c) 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include "simdag/simdag.h"
  10 #include "xbt/ex.h"
  11 #include "xbt/log.h"
  12
  13 XBT_LOG_NEW_DEFAULT_CATEGORY(sd_fail,
  14                              "Logging specific to this SimDag example");
  15
  16 int main(int argc, char **argv)
  17 {
  18   SD_task_t task;
  19   double computation_amount[1];
  20   double communication_amount[2] = { 0 };
  21   SD_workstation_t workstation_list[1];
  22   /* initialization of SD */
  23   SD_init(&argc, argv);
  24
  25   /* creation of the environment */
  26   SD_create_environment("./faulty_host.xml");
  27
  28   /* creation of a single task that will poorly fail when the workstation
  29    * will stop */
  30   XBT_INFO("First test: COMP_SEQ task");
  31   task = SD_task_create_comp_seq("Poor task", NULL, 2e10);
  32   SD_task_watch(task, SD_FAILED);
  33   SD_task_watch(task, SD_DONE);
  34
  35   XBT_INFO("Schedule task '%s' on workstation 'Faulty Host'",
  36            SD_task_get_name(task));
  37
  38   SD_task_schedulel(task, 1, SD_workstation_get_by_name("Faulty Host"));
  39
  40   SD_simulate(-1.0);
  41
  42   SD_task_dump(task);
  43
  44   XBT_INFO("Task '%s' has failed. %.f flops remain to be done",
  45            SD_task_get_name(task),
  46            SD_task_get_remaining_amount(task));
  47
  48   XBT_INFO("let's unschedule task '%s' and reschedule it on the 'Safe Host'",
  49            SD_task_get_name(task));
  50   SD_task_unschedule(task);
  51   SD_task_schedulel(task, 1, SD_workstation_get_by_name("Safe Host"));
  52
  53   XBT_INFO("Run the simulation again");
  54   SD_simulate(-1.0);
  55
  56   SD_task_dump(task);
  57   XBT_INFO("Task '%s' start time: %f, finish time: %f",
  58       SD_task_get_name(task),
  59       SD_task_get_start_time(task),
  60       SD_task_get_finish_time(task));
  61
  62   SD_task_destroy(task);
  63   task=NULL;
  64
  65   XBT_INFO("Second test: NON TYPED task");
  66
  67   task = SD_task_create("Poor parallel task", NULL, 2e10);
  68   SD_task_watch(task, SD_FAILED);
  69   SD_task_watch(task, SD_DONE);
  70
  71   computation_amount[0] = 2e10;
  72
  73   XBT_INFO("Schedule task '%s' on workstation 'Faulty Host'",
  74              SD_task_get_name(task));
  75
  76   workstation_list[0] = SD_workstation_get_by_name("Faulty Host");
  77   SD_task_schedule(task, 1, workstation_list,
  78           computation_amount, communication_amount,-1);
  79
  80   SD_simulate(-1.0);
  81
  82   SD_task_dump(task);
  83
  84   XBT_INFO("Task '%s' has failed. %.f flops remain to be done",
  85             SD_task_get_name(task),
  86             SD_task_get_remaining_amount(task));
  87
  88   XBT_INFO("let's unschedule task '%s' and reschedule it on the 'Safe Host'",
  89            SD_task_get_name(task));
  90   SD_task_unschedule(task);
  91
  92   workstation_list[0] = SD_workstation_get_by_name("Safe Host");
  93
  94   SD_task_schedule(task, 1, workstation_list,
  95                    computation_amount, communication_amount,-1);
  96
  97   XBT_INFO("Run the simulation again");
  98   SD_simulate(-1.0);
  99
 100   SD_task_dump(task);
 101   XBT_INFO("Task '%s' start time: %f, finish time: %f",
 102            SD_task_get_name(task),
 103            SD_task_get_start_time(task),
 104            SD_task_get_finish_time(task));
 105
 106   SD_task_destroy(task);
 107   SD_exit();
 108   return 0;
 109 }