examples/simdag/simdag_trace.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_seq_access,
  14                              "Logging specific to this SimDag example");
  15
  16 int main(int argc, char **argv)
  17 {
  18   int i;
  19   const char *platform_file;
  20   const SD_workstation_t *workstations;
  21   int kind;
  22   SD_task_t task, taskA, taskB, taskC;
  23   xbt_dynar_t changed_tasks;
  24   SD_workstation_t workstation_list[2];
  25   double computation_amount[2];
  26   double communication_amount[4] = { 0 };
  27   double rate = -1.0;
  28   SD_workstation_t w1, w2;
  29
  30   /* initialisation of SD */
  31   SD_init(&argc, argv);
  32
  33   TRACE_start ();
  34
  35   /*  xbt_log_control_set("sd.thres=debug"); */
  36
  37   if (argc < 2) {
  38     INFO1("Usage: %s platform_file", argv[0]);
  39     INFO1("example: %s sd_platform.xml", argv[0]);
  40     exit(1);
  41   }
  42
  43   /* creation of the environment */
  44   platform_file = argv[1];
  45   SD_create_environment(platform_file);
  46
  47   /* Change the access mode of the workstations */
  48   workstations = SD_workstation_get_list();
  49   w1 = workstations[0];
  50   w2 = workstations[1];
  51   for (i = 0; i < 2; i++) {
  52     SD_workstation_set_access_mode(workstations[i],
  53                                    SD_WORKSTATION_SEQUENTIAL_ACCESS);
  54     INFO2("Access mode of %s is %s",
  55           SD_workstation_get_name(workstations[i]),
  56           (SD_workstation_get_access_mode(workstations[i]) ==
  57            SD_WORKSTATION_SEQUENTIAL_ACCESS) ? "sequential" : "shared");
  58   }
  59
  60   /* creation of the tasks and their dependencies */
  61   taskA = SD_task_create_comp_seq("Task A", NULL, 2e9);
  62   taskB = SD_task_create_comm_e2e("Task B", NULL, 2e9);
  63   taskC = SD_task_create_comp_seq("Task C", NULL, 1e9);
  64   TRACE_category ("taskA");
  65   TRACE_category ("taskB");
  66   TRACE_category ("taskC");
  67   TRACE_sd_set_task_category (taskA, "taskA");
  68   TRACE_sd_set_task_category (taskB, "taskB");
  69   TRACE_sd_set_task_category (taskC, "taskC");
  70
  71   /* if everything is ok, no exception is forwarded or rethrown by main() */
  72
  73   /* watch points */
  74   SD_task_watch(taskA, SD_RUNNING);
  75   SD_task_watch(taskB, SD_RUNNING);
  76   SD_task_watch(taskC, SD_RUNNING);
  77   SD_task_watch(taskC, SD_DONE);
  78
  79
  80   /* scheduling parameters */
  81   workstation_list[0] = w1;
  82   workstation_list[1] = w2;
  83   computation_amount[0] = SD_task_get_amount(taskA);
  84   computation_amount[1] = SD_task_get_amount(taskB);
  85
  86   communication_amount[1] = SD_task_get_amount(taskC);
  87   communication_amount[2] = 0.0;
  88
  89   SD_task_schedule(taskA, 1, &w1,
  90                    &(computation_amount[0]), SD_SCHED_NO_COST, rate);
  91   SD_task_schedule(taskB, 2, workstation_list,
  92                    SD_SCHED_NO_COST, communication_amount, rate);
  93   SD_task_schedule(taskC, 1, &w1,
  94                    &(computation_amount[1]), SD_SCHED_NO_COST, rate);
  95
  96   /* let's launch the simulation! */
  97   while (xbt_dynar_length(changed_tasks = SD_simulate(-1.0)) > 0) {
  98     for (i = 0; i < 2; i++) {
  99       task = SD_workstation_get_current_task(workstations[i]);
 100       if (task)
 101         kind = SD_task_get_kind(task);
 102       else {
 103         INFO1("There is no task running on %s",
 104               SD_workstation_get_name(workstations[i]));
 105         continue;
 106       }
 107
 108       switch (kind) {
 109       case SD_TASK_COMP_SEQ:
 110         INFO2("%s is currently running on %s (SD_TASK_COMP_SEQ)",
 111               SD_task_get_name(task),
 112               SD_workstation_get_name(workstations[i]));
 113         break;
 114       case SD_TASK_COMM_E2E:
 115         INFO2("%s is currently running on %s (SD_TASK_COMM_E2E)",
 116               SD_task_get_name(task),
 117               SD_workstation_get_name(workstations[i]));
 118         break;
 119       case SD_TASK_NOT_TYPED:
 120         INFO1("Task running on %s has no type",
 121               SD_workstation_get_name(workstations[i]));
 122         break;
 123       default:
 124         ERROR0("Shouldn't be here");
 125       }
 126     }
 127     xbt_dynar_free_container(&changed_tasks);
 128   }
 129
 130   DEBUG0("Destroying tasks...");
 131
 132   SD_task_destroy(taskA);
 133   SD_task_destroy(taskB);
 134   SD_task_destroy(taskC);
 135
 136   DEBUG0("Tasks destroyed. Exiting SimDag...");
 137
 138   SD_exit();
 139   TRACE_end();
 140   return 0;
 141 }