testsuite/simdag/sd_test.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_test,
  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
  21   const SD_workstation_t *workstations;
  22   SD_workstation_t w1;
  23   SD_workstation_t w2;
  24   const char *name1 = NULL;
  25   const char *name2 = NULL;
  26   const double computation_amount1 = 2000000;
  27   const double computation_amount2 = 1000000;
  28   const double communication_amount12 = 2000000;
  29   const double communication_amount21 = 3000000;
  30   const SD_link_t *route;
  31   int route_size;
  32   SD_task_t taskA;
  33   SD_task_t taskB, checkB;
  34   SD_task_t taskC, checkC;
  35   SD_task_t taskD, checkD;
  36   xbt_ex_t ex;
  37
  38   /* initialisation of SD */
  39   SD_init(&argc, argv);
  40
  41   if (argc < 2) {
  42     INFO1("Usage: %s platform_file", argv[0]);
  43     INFO1("example: %s sd_platform.xml", argv[0]);
  44     exit(1);
  45   }
  46
  47   /* creation of the environment */
  48
  49   platform_file = argv[1];
  50
  51   SD_create_environment(platform_file);
  52
  53   /* test the estimation functions (use small_platform.xml) */
  54   workstations = SD_workstation_get_list();
  55
  56
  57   for(i=0 ; i < SD_workstation_get_number() ; i++)
  58   {
  59           INFO1("name : %s",SD_workstation_get_name(workstations[i]) );
  60   }
  61
  62   w1 = workstations[0];
  63   w2 = workstations[1];
  64   name1 = SD_workstation_get_name(w1);
  65   name2 = SD_workstation_get_name(w2);
  66
  67   route = SD_route_get_list(w1, w2);
  68
  69   route_size = SD_route_get_size(w1, w2);
  70
  71   taskA = SD_task_create("Task A", NULL, 10.0);
  72   taskB = SD_task_create("Task B", NULL, 40.0);
  73   taskC = SD_task_create("Task C", NULL, 30.0);
  74   taskD = SD_task_create("Task D", NULL, 60.0);
  75
  76   INFO3("Computation time for %f flops on %s: %f", computation_amount1, name1,
  77         SD_workstation_get_computation_time(w1, computation_amount1));
  78   INFO3("Computation time for %f flops on %s: %f", computation_amount2, name2,
  79         SD_workstation_get_computation_time(w2, computation_amount2));
  80
  81   INFO2("Route between %s and %s:", name1, name2);
  82   for (i = 0; i < route_size; i++) {
  83     INFO3("\tLink %s: latency = %f, bandwidth = %f",
  84           SD_link_get_name(route[i]), SD_link_get_current_latency(route[i]),
  85           SD_link_get_current_bandwidth(route[i]));
  86   }
  87   INFO2("Route latency = %f, route bandwidth = %f",
  88         SD_route_get_current_latency(w1, w2),
  89         SD_route_get_current_bandwidth(w1, w2));
  90   INFO4("Communication time for %f bytes between %s and %s: %f",
  91         communication_amount12, name1, name2,
  92         SD_route_get_communication_time(w1, w2, communication_amount12));
  93   INFO4("Communication time for %f bytes between %s and %s: %f",
  94         communication_amount21, name2, name1,
  95         SD_route_get_communication_time(w2, w1, communication_amount21));
  96
  97   /* creation of the tasks and their dependencies */
  98
  99   SD_task_dependency_add(NULL, NULL, taskB, taskA);
 100   SD_task_dependency_add(NULL, NULL, taskC, taskA);
 101   SD_task_dependency_add(NULL, NULL, taskD, taskB);
 102   SD_task_dependency_add(NULL, NULL, taskD, taskC);
 103   /*  SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock */
 104
 105   TRY {
 106     SD_task_dependency_add(NULL, NULL, taskA, taskA);   /* shouldn't work and must raise an exception */
 107     xbt_assert0(0, "Hey, I can add a dependency between Task A and Task A!");
 108   }
 109   CATCH(ex) {
 110   }
 111
 112   TRY {
 113     SD_task_dependency_add(NULL, NULL, taskA, taskB);   /* shouldn't work and must raise an exception */
 114     xbt_assert0(0, "Oh oh, I can add an already existing dependency!");
 115   }
 116   CATCH(ex) {
 117   }
 118
 119   SD_task_dependency_remove(taskA, taskB);
 120
 121   TRY {
 122     SD_task_dependency_remove(taskC, taskA);    /* shouldn't work and must raise an exception */
 123     xbt_assert0(0, "Dude, I can remove an unknown dependency!");
 124   }
 125   CATCH(ex) {
 126   }
 127
 128   TRY {
 129     SD_task_dependency_remove(taskC, taskC);    /* shouldn't work and must raise an exception */
 130     xbt_assert0(0,
 131                 "Wow, I can remove a dependency between Task C and itself!");
 132   }
 133   CATCH(ex) {
 134   }
 135
 136
 137   /* if everything is ok, no exception is forwarded or rethrown by main() */
 138
 139   /* watch points */
 140   SD_task_watch(taskD, SD_DONE);
 141   SD_task_watch(taskB, SD_DONE);
 142   SD_task_unwatch(taskD, SD_DONE);
 143
 144
 145   /* scheduling parameters */
 146   {
 147     const int workstation_number = 2;
 148     const SD_workstation_t workstation_list[] = { w1, w2 };
 149     double computation_amount[] =
 150       { computation_amount1, computation_amount2 };
 151     double communication_amount[] = {
 152       0, communication_amount12,
 153       communication_amount21, 0
 154     };
 155     xbt_dynar_t changed_tasks;
 156     double rate = -1.0;
 157
 158     /* estimated time */
 159     SD_task_t task = taskD;
 160     INFO2("Estimated time for '%s': %f", SD_task_get_name(task),
 161           SD_task_get_execution_time(task, workstation_number,
 162                                      workstation_list, computation_amount,
 163                                      communication_amount));
 164
 165     /* let's launch the simulation! */
 166
 167     SD_task_schedule(taskA, workstation_number, workstation_list,
 168                      computation_amount, communication_amount, rate);
 169     SD_task_schedule(taskB, workstation_number, workstation_list,
 170                      computation_amount, communication_amount, rate);
 171     SD_task_schedule(taskC, workstation_number, workstation_list,
 172                      computation_amount, communication_amount, rate);
 173     SD_task_schedule(taskD, workstation_number, workstation_list,
 174                      computation_amount, communication_amount, rate);
 175
 176     changed_tasks = SD_simulate(-1.0);
 177
 178     xbt_dynar_get_cpy(changed_tasks, 0, &checkD);
 179     xbt_dynar_get_cpy(changed_tasks, 1, &checkC);
 180     xbt_dynar_get_cpy(changed_tasks, 2, &checkB);
 181
 182     xbt_assert0(checkD == taskD &&
 183                 checkC == taskC &&
 184                 checkB == taskB, "Unexpected simulation results");
 185
 186     xbt_dynar_free_container(&changed_tasks);
 187   }
 188   DEBUG0("Destroying tasks...");
 189
 190   SD_task_destroy(taskA);
 191   SD_task_destroy(taskB);
 192   SD_task_destroy(taskC);
 193   SD_task_destroy(taskD);
 194
 195   DEBUG0("Tasks destroyed. Exiting SimDag...");
 196
 197   SD_exit();
 198   return 0;
 199 }