examples/simdag/sd_fail.c

   1 /* Copyright (c) 2006-2010, 2012-2015. 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 "simgrid/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
  23   /* initialization of SD */
  24   SD_init(&argc, argv);
  25
  26   /* creation of the environment */
  27   SD_create_environment("./faulty_host.xml");
  28
  29   /* creation of a single task that will poorly fail when the workstation
  30    * will stop */
  31   XBT_INFO("First test: COMP_SEQ task");
  32   task = SD_task_create_comp_seq("Poor task", NULL, 2e10);
  33   SD_task_watch(task, SD_FAILED);
  34   SD_task_watch(task, SD_DONE);
  35
  36   XBT_INFO("Schedule task '%s' on workstation 'Faulty Host'",
  37            SD_task_get_name(task));
  38
  39   SD_task_schedulel(task, 1, SD_workstation_get_by_name("Faulty Host"));
  40
  41   SD_simulate(-1.0);
  42
  43   SD_task_dump(task);
  44
  45   XBT_INFO("Task '%s' has failed. %.f flops remain to be done",
  46            SD_task_get_name(task),
  47            SD_task_get_remaining_amount(task));
  48
  49   XBT_INFO("let's unschedule task '%s' and reschedule it on the 'Safe Host'",
  50            SD_task_get_name(task));
  51   SD_task_unschedule(task);
  52   SD_task_schedulel(task, 1, SD_workstation_get_by_name("Safe Host"));
  53
  54   XBT_INFO("Run the simulation again");
  55   SD_simulate(-1.0);
  56
  57   SD_task_dump(task);
  58   XBT_INFO("Task '%s' start time: %f, finish time: %f",
  59       SD_task_get_name(task),
  60       SD_task_get_start_time(task),
  61       SD_task_get_finish_time(task));
  62
  63   SD_task_destroy(task);
  64   task=NULL;
  65
  66   XBT_INFO("Second test: NON TYPED task");
  67
  68   task = SD_task_create("Poor parallel task", NULL, 2e10);
  69   SD_task_watch(task, SD_FAILED);
  70   SD_task_watch(task, SD_DONE);
  71
  72   computation_amount[0] = 2e10;
  73
  74   XBT_INFO("Schedule task '%s' on workstation 'Faulty Host'",
  75              SD_task_get_name(task));
  76
  77   workstation_list[0] = SD_workstation_get_by_name("Faulty Host");
  78   SD_task_schedule(task, 1, workstation_list,
  79           computation_amount, communication_amount,-1);
  80
  81   SD_simulate(-1.0);
  82
  83   SD_task_dump(task);
  84
  85   XBT_INFO("Task '%s' has failed. %.f flops remain to be done",
  86             SD_task_get_name(task),
  87             SD_task_get_remaining_amount(task));
  88
  89   XBT_INFO("let's unschedule task '%s' and reschedule it on the 'Safe Host'",
  90            SD_task_get_name(task));
  91   SD_task_unschedule(task);
  92
  93   workstation_list[0] = SD_workstation_get_by_name("Safe Host");
  94
  95   SD_task_schedule(task, 1, workstation_list,
  96                    computation_amount, communication_amount,-1);
  97
  98   XBT_INFO("Run the simulation again");
  99   SD_simulate(-1.0);
 100
 101   SD_task_dump(task);
 102   XBT_INFO("Task '%s' start time: %f, finish time: %f",
 103            SD_task_get_name(task),
 104            SD_task_get_start_time(task),
 105            SD_task_get_finish_time(task));
 106
 107   SD_task_destroy(task);
 108   SD_exit();
 109   return 0;
 110 }