examples/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   int i;
  12
  13   /* initialisation of SD */
  14   SD_init(&argc, argv);
  15
  16 /*   xbt_log_control_set("sd_test.thres=debug"); */
  17 /*   xbt_log_control_set("sd.thres=debug"); */
  18
  19   if (argc < 2) {
  20      INFO1("Usage: %s platform_file", argv[0]);
  21      INFO1("example: %s sd_platform.xml", argv[0]);
  22      exit(1);
  23   }
  24
  25   /* creation of the environment */
  26   char * platform_file = argv[1];
  27   SD_create_environment(platform_file);
  28
  29   /* test the estimation functions (use small_platform.xml) */
  30   const SD_workstation_t *workstations = SD_workstation_get_list();
  31   SD_workstation_t w1 = workstations[0];
  32   SD_workstation_t w2 = workstations[1];
  33   const char *name1 = SD_workstation_get_name(w1);
  34   const char *name2 = SD_workstation_get_name(w2);
  35   const double computation_amount1 = 2000000;
  36   const double computation_amount2 = 1000000;
  37   const double communication_amount12 = 2000000;
  38   const double communication_amount21 = 3000000;
  39   INFO3("Computation time for %f flops on %s: %f", computation_amount1, name1,
  40         SD_workstation_get_computation_time(w1, computation_amount1));
  41   INFO3("Computation time for %f flops on %s: %f", computation_amount2, name2,
  42         SD_workstation_get_computation_time(w2, computation_amount2));
  43
  44   INFO2("Route between %s and %s:", name1, name2);
  45   SD_link_t *route = SD_route_get_list(w1, w2);
  46   int route_size = SD_route_get_size(w1, w2);
  47   for (i = 0; i < route_size; i++) {
  48     INFO3("\tLink %s: latency = %f, bandwidth = %f", SD_link_get_name(route[i]),
  49           SD_link_get_current_latency(route[i]), SD_link_get_current_bandwidth(route[i]));
  50   }
  51   INFO2("Route latency = %f, route bandwidth = %f", SD_route_get_current_latency(w1, w2),
  52         SD_route_get_current_bandwidth(w1, w2));
  53   INFO4("Communication time for %f bytes between %s and %s: %f", communication_amount12, name1, name2,
  54         SD_route_get_communication_time(w1, w2, communication_amount12));
  55   INFO4("Communication time for %f bytes between %s and %s: %f", communication_amount21, name2, name1,
  56         SD_route_get_communication_time(w2, w1, communication_amount21));
  57   xbt_free(route);
  58
  59   /* creation of the tasks and their dependencies */
  60   SD_task_t taskA = SD_task_create("Task A", NULL, 10.0);
  61   SD_task_t taskB = SD_task_create("Task B", NULL, 40.0);
  62   SD_task_t taskC = SD_task_create("Task C", NULL, 30.0);
  63   SD_task_t taskD = SD_task_create("Task D", NULL, 60.0);
  64
  65   SD_task_dependency_add(NULL, NULL, taskB, taskA);
  66   SD_task_dependency_add(NULL, NULL, taskC, taskA);
  67   SD_task_dependency_add(NULL, NULL, taskD, taskB);
  68   SD_task_dependency_add(NULL, NULL, taskD, taskC);
  69   /*  SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock *\/ */
  70
  71   /* scheduling parameters */
  72
  73   const int workstation_number = 2;
  74   /*  const SD_workstation_t *workstation_list = SD_workstation_get_list();*/
  75   const SD_workstation_t workstation_list[] = {w1, w2};
  76   double computation_amount[] = {computation_amount1, computation_amount2};
  77   double communication_amount[] =
  78     {
  79       0, communication_amount12,
  80       communication_amount21, 0
  81     };
  82   double rate = -1.0;
  83
  84   /* estimated time */
  85   SD_task_t task = taskD;
  86   INFO2("Estimated time for '%s': %f", SD_task_get_name(task),
  87         SD_task_get_execution_time(task, workstation_number, workstation_list,
  88                                    computation_amount, communication_amount, rate));
  89
  90   /* let's launch the simulation! */
  91
  92   SD_task_schedule(taskA, workstation_number, workstation_list,
  93                    computation_amount, communication_amount, rate);
  94   SD_task_schedule(taskB, workstation_number, workstation_list,
  95                    computation_amount, communication_amount, rate);
  96   SD_task_schedule(taskC, workstation_number, workstation_list,
  97                    computation_amount, communication_amount, rate);
  98   SD_task_schedule(taskD, workstation_number, workstation_list,
  99                    computation_amount, communication_amount, rate);
 100
 101   SD_task_watch(taskC, SD_DONE);
 102
 103   SD_task_t *changed_tasks;
 104
 105   changed_tasks = SD_simulate(0.001);
 106
 107   while (changed_tasks[0] != NULL) {
 108     INFO0("Tasks whose state has changed:");
 109     i = 0;
 110     while(changed_tasks[i] != NULL) {
 111       switch (SD_task_get_state(changed_tasks[i])) {
 112       case SD_SCHEDULED:
 113         INFO1("%s is scheduled.", SD_task_get_name(changed_tasks[i]));
 114         break;
 115       case SD_READY:
 116         INFO1("%s is ready.", SD_task_get_name(changed_tasks[i]));
 117         break;
 118       case SD_RUNNING:
 119         INFO1("%s is running.", SD_task_get_name(changed_tasks[i]));
 120         break;
 121       case SD_DONE:
 122         INFO1("%s is done.", SD_task_get_name(changed_tasks[i]));
 123         break;
 124       case SD_FAILED:
 125         INFO1("%s is failed.", SD_task_get_name(changed_tasks[i]));
 126         break;
 127       default:
 128         INFO1("Unknown status for %s", SD_task_get_name(changed_tasks[i]));
 129         break;
 130       }
 131       i++;
 132     }
 133     xbt_free(changed_tasks);
 134     changed_tasks = SD_simulate(100);
 135   }
 136
 137   xbt_free(changed_tasks);
 138
 139   DEBUG0("Destroying tasks...");
 140
 141   SD_task_destroy(taskA);
 142   SD_task_destroy(taskB);
 143   SD_task_destroy(taskC);
 144   SD_task_destroy(taskD);
 145
 146   DEBUG0("Tasks destroyed. Exiting SimDag...");
 147
 148   SD_exit();
 149   return 0;
 150 }