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