testsuite/simdag/sd_test.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "simdag/simdag.h"
   4 #include "xbt/ex.h"
   5 #include "xbt/log.h"
   6
   7 XBT_LOG_NEW_DEFAULT_CATEGORY(sd_test,
   8                              "Logging specific to this SimDag example");
   9
  10 int main(int argc, char **argv)
  11 {
  12   int i;
  13   const char *platform_file;
  14
  15   const SD_workstation_t *workstations;
  16   SD_workstation_t w1;
  17   SD_workstation_t w2;
  18   const char *name1;
  19   const char *name2;
  20   const double computation_amount1 = 2000000;
  21   const double computation_amount2 = 1000000;
  22   const double communication_amount12 = 2000000;
  23   const double communication_amount21 = 3000000;
  24   const SD_link_t *route;
  25   int route_size;
  26   SD_task_t taskA;
  27   SD_task_t taskB;
  28   SD_task_t taskC;
  29   SD_task_t taskD;
  30   xbt_ex_t ex;
  31
  32   /* initialisation of SD */
  33   SD_init(&argc, argv);
  34
  35   if (argc < 2) {
  36     INFO1("Usage: %s platform_file", argv[0]);
  37     INFO1("example: %s sd_platform.xml", argv[0]);
  38     exit(1);
  39   }
  40
  41   /* creation of the environment */
  42
  43   platform_file = argv[1];
  44
  45   SD_create_environment(platform_file);
  46
  47   /* test the estimation functions (use small_platform.xml) */
  48   workstations = SD_workstation_get_list();
  49   w1 = workstations[0];
  50   w2 = workstations[1];
  51   name1 = SD_workstation_get_name(w1);
  52   name2 = SD_workstation_get_name(w2);
  53   route = SD_route_get_list(w1, w2);
  54   route_size = SD_route_get_size(w1, w2);
  55   taskA = SD_task_create("Task A", NULL, 10.0);
  56   taskB = SD_task_create("Task B", NULL, 40.0);
  57   taskC = SD_task_create("Task C", NULL, 30.0);
  58   taskD = SD_task_create("Task D", NULL, 60.0);
  59
  60   INFO3("Computation time for %f flops on %s: %f", computation_amount1, name1,
  61         SD_workstation_get_computation_time(w1, computation_amount1));
  62   INFO3("Computation time for %f flops on %s: %f", computation_amount2, name2,
  63         SD_workstation_get_computation_time(w2, computation_amount2));
  64
  65   INFO2("Route between %s and %s:", name1, name2);
  66   for (i = 0; i < route_size; i++) {
  67     INFO3("\tLink %s: latency = %f, bandwidth = %f",
  68           SD_link_get_name(route[i]), SD_link_get_current_latency(route[i]),
  69           SD_link_get_current_bandwidth(route[i]));
  70   }
  71   INFO2("Route latency = %f, route bandwidth = %f",
  72         SD_route_get_current_latency(w1, w2),
  73         SD_route_get_current_bandwidth(w1, w2));
  74   INFO4("Communication time for %f bytes between %s and %s: %f",
  75         communication_amount12, name1, name2,
  76         SD_route_get_communication_time(w1, w2, communication_amount12));
  77   INFO4("Communication time for %f bytes between %s and %s: %f",
  78         communication_amount21, name2, name1,
  79         SD_route_get_communication_time(w2, w1, communication_amount21));
  80
  81   /* creation of the tasks and their dependencies */
  82
  83   SD_task_dependency_add(NULL, NULL, taskB, taskA);
  84   SD_task_dependency_add(NULL, NULL, taskC, taskA);
  85   SD_task_dependency_add(NULL, NULL, taskD, taskB);
  86   SD_task_dependency_add(NULL, NULL, taskD, taskC);
  87   /*  SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock */
  88
  89   TRY {
  90     SD_task_dependency_add(NULL, NULL, taskA, taskA);   /* shouldn't work and must raise an exception */
  91     xbt_assert0(0, "Hey, I can add a dependency between Task A and Task A!");
  92   }
  93   CATCH(ex) {
  94   }
  95
  96   TRY {
  97     SD_task_dependency_add(NULL, NULL, taskA, taskB);   /* shouldn't work and must raise an exception */
  98     xbt_assert0(0, "Oh oh, I can add an already existing dependency!");
  99   }
 100   CATCH(ex) {
 101   }
 102
 103   SD_task_dependency_remove(taskA, taskB);
 104
 105   TRY {
 106     SD_task_dependency_remove(taskC, taskA);    /* shouldn't work and must raise an exception */
 107     xbt_assert0(0, "Dude, I can remove an unknown dependency!");
 108   }
 109   CATCH(ex) {
 110   }
 111
 112   TRY {
 113     SD_task_dependency_remove(taskC, taskC);    /* shouldn't work and must raise an exception */
 114     xbt_assert0(0,
 115                 "Wow, I can remove a dependency between Task C and itself!");
 116   }
 117   CATCH(ex) {
 118   }
 119
 120
 121   /* if everything is ok, no exception is forwarded or rethrown by main() */
 122
 123   /* watch points */
 124   SD_task_watch(taskD, SD_DONE);
 125   SD_task_watch(taskB, SD_DONE);
 126   SD_task_unwatch(taskD, SD_DONE);
 127
 128
 129   /* scheduling parameters */
 130   {
 131     const int workstation_number = 2;
 132     const SD_workstation_t workstation_list[] = { w1, w2 };
 133     double computation_amount[] =
 134       { computation_amount1, computation_amount2 };
 135     double communication_amount[] = {
 136       0, communication_amount12,
 137       communication_amount21, 0
 138     };
 139     SD_task_t *changed_tasks;
 140     double rate = -1.0;
 141
 142     /* estimated time */
 143     SD_task_t task = taskD;
 144     INFO2("Estimated time for '%s': %f", SD_task_get_name(task),
 145           SD_task_get_execution_time(task, workstation_number,
 146                                      workstation_list, computation_amount,
 147                                      communication_amount));
 148
 149     /* let's launch the simulation! */
 150
 151     SD_task_schedule(taskA, workstation_number, workstation_list,
 152                      computation_amount, communication_amount, rate);
 153     SD_task_schedule(taskB, workstation_number, workstation_list,
 154                      computation_amount, communication_amount, rate);
 155     SD_task_schedule(taskC, workstation_number, workstation_list,
 156                      computation_amount, communication_amount, rate);
 157     SD_task_schedule(taskD, workstation_number, workstation_list,
 158                      computation_amount, communication_amount, rate);
 159
 160     changed_tasks = SD_simulate(-1.0);
 161     xbt_assert0(changed_tasks[0] == taskD &&
 162                 changed_tasks[1] == taskC &&
 163                 changed_tasks[2] == taskB &&
 164                 changed_tasks[3] == NULL, "Unexpected simulation results");
 165
 166     xbt_free(changed_tasks);
 167   }
 168   DEBUG0("Destroying tasks...");
 169
 170   SD_task_destroy(taskA);
 171   SD_task_destroy(taskB);
 172   SD_task_destroy(taskC);
 173   SD_task_destroy(taskD);
 174
 175   DEBUG0("Tasks destroyed. Exiting SimDag...");
 176
 177   SD_exit();
 178   return 0;
 179 }