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     INFO1("name : %s", SD_workstation_get_name(workstations[i]));
  59   }
  60
  61   w1 = workstations[0];
  62   w2 = workstations[1];
  63   name1 = SD_workstation_get_name(w1);
  64   name2 = SD_workstation_get_name(w2);
  65
  66   route = SD_route_get_list(w1, w2);
  67
  68   route_size = SD_route_get_size(w1, w2);
  69
  70   taskA = SD_task_create("Task A", NULL, 10.0);
  71   taskB = SD_task_create("Task B", NULL, 40.0);
  72   taskC = SD_task_create("Task C", NULL, 30.0);
  73   taskD = SD_task_create("Task D", NULL, 60.0);
  74
  75   INFO3("Computation time for %f flops on %s: %f", computation_amount1,
  76         name1, SD_workstation_get_computation_time(w1,
  77                                                    computation_amount1));
  78   INFO3("Computation time for %f flops on %s: %f", computation_amount2,
  79         name2, SD_workstation_get_computation_time(w2,
  80                                                    computation_amount2));
  81
  82   INFO2("Route between %s and %s:", name1, name2);
  83   for (i = 0; i < route_size; i++) {
  84     INFO3("\tLink %s: latency = %f, bandwidth = %f",
  85           SD_link_get_name(route[i]),
  86           SD_link_get_current_latency(route[i]),
  87           SD_link_get_current_bandwidth(route[i]));
  88   }
  89   INFO2("Route latency = %f, route bandwidth = %f",
  90         SD_route_get_current_latency(w1, w2),
  91         SD_route_get_current_bandwidth(w1, w2));
  92   INFO4("Communication time for %f bytes between %s and %s: %f",
  93         communication_amount12, name1, name2,
  94         SD_route_get_communication_time(w1, w2, communication_amount12));
  95   INFO4("Communication time for %f bytes between %s and %s: %f",
  96         communication_amount21, name2, name1,
  97         SD_route_get_communication_time(w2, w1, communication_amount21));
  98
  99   /* creation of the tasks and their dependencies */
 100
 101   SD_task_dependency_add(NULL, NULL, taskB, taskA);
 102   SD_task_dependency_add(NULL, NULL, taskC, taskA);
 103   SD_task_dependency_add(NULL, NULL, taskD, taskB);
 104   SD_task_dependency_add(NULL, NULL, taskD, taskC);
 105   /*  SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock */
 106
 107   TRY {
 108     SD_task_dependency_add(NULL, NULL, taskA, taskA);   /* shouldn't work and must raise an exception */
 109     xbt_assert0(0,
 110                 "Hey, I can add a dependency between Task A and Task A!");
 111   }
 112   CATCH(ex) {
 113   }
 114
 115   TRY {
 116     SD_task_dependency_add(NULL, NULL, taskA, taskB);   /* shouldn't work and must raise an exception */
 117     xbt_assert0(0, "Oh oh, I can add an already existing dependency!");
 118   }
 119   CATCH(ex) {
 120   }
 121
 122   SD_task_dependency_remove(taskA, taskB);
 123
 124   TRY {
 125     SD_task_dependency_remove(taskC, taskA);    /* shouldn't work and must raise an exception */
 126     xbt_assert0(0, "Dude, I can remove an unknown dependency!");
 127   }
 128   CATCH(ex) {
 129   }
 130
 131   TRY {
 132     SD_task_dependency_remove(taskC, taskC);    /* shouldn't work and must raise an exception */
 133     xbt_assert0(0,
 134                 "Wow, I can remove a dependency between Task C and itself!");
 135   }
 136   CATCH(ex) {
 137   }
 138
 139
 140   /* if everything is ok, no exception is forwarded or rethrown by main() */
 141
 142   /* watch points */
 143   SD_task_watch(taskD, SD_DONE);
 144   SD_task_watch(taskB, SD_DONE);
 145   SD_task_unwatch(taskD, SD_DONE);
 146
 147
 148   /* scheduling parameters */
 149   {
 150     const int workstation_number = 2;
 151     const SD_workstation_t workstation_list[] = { w1, w2 };
 152     double computation_amount[] =
 153         { computation_amount1, computation_amount2 };
 154     double communication_amount[] = {
 155       0, communication_amount12,
 156       communication_amount21, 0
 157     };
 158     xbt_dynar_t changed_tasks;
 159     double rate = -1.0;
 160
 161     /* estimated time */
 162     SD_task_t task = taskD;
 163     INFO2("Estimated time for '%s': %f", SD_task_get_name(task),
 164           SD_task_get_execution_time(task, workstation_number,
 165                                      workstation_list, computation_amount,
 166                                      communication_amount));
 167
 168     /* let's launch the simulation! */
 169
 170     SD_task_schedule(taskA, workstation_number, workstation_list,
 171                      computation_amount, communication_amount, rate);
 172     SD_task_schedule(taskB, workstation_number, workstation_list,
 173                      computation_amount, communication_amount, rate);
 174     SD_task_schedule(taskC, workstation_number, workstation_list,
 175                      computation_amount, communication_amount, rate);
 176     SD_task_schedule(taskD, workstation_number, workstation_list,
 177                      computation_amount, communication_amount, rate);
 178
 179     changed_tasks = SD_simulate(-1.0);
 180
 181     xbt_dynar_get_cpy(changed_tasks, 0, &checkD);
 182     xbt_dynar_get_cpy(changed_tasks, 1, &checkC);
 183     xbt_dynar_get_cpy(changed_tasks, 2, &checkB);
 184
 185     xbt_assert0(checkD == taskD &&
 186                 checkC == taskC &&
 187                 checkB == taskB, "Unexpected simulation results");
 188
 189     xbt_dynar_free_container(&changed_tasks);
 190   }
 191   DEBUG0("Destroying tasks...");
 192
 193   SD_task_destroy(taskA);
 194   SD_task_destroy(taskB);
 195   SD_task_destroy(taskC);
 196   SD_task_destroy(taskD);
 197
 198   DEBUG0("Tasks destroyed. Exiting SimDag...");
 199
 200   SD_exit();
 201   return 0;
 202 }