3 #include "simdag/simdag.h"
7 XBT_LOG_NEW_DEFAULT_CATEGORY(sd_test,
8 "Logging specific to this SimDag example");
10 int main(int argc, char **argv) {
13 /* initialisation of SD */
16 /* xbt_log_control_set("sd.thres=debug");*/
19 INFO1("Usage: %s platform_file", argv[0]);
20 INFO1("example: %s sd_platform.xml", argv[0]);
24 /* creation of the environment */
25 const char * platform_file = argv[1];
26 SD_create_environment(platform_file);
28 /* test the estimation functions */
29 const SD_workstation_t *workstations = SD_workstation_get_list();
30 SD_workstation_t w1 = workstations[0];
31 SD_workstation_t w2 = workstations[1];
32 SD_workstation_set_access_mode(w2, SD_WORKSTATION_SEQUENTIAL_ACCESS);
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));
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]));
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));
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);
66 SD_task_dependency_add(NULL, NULL, taskB, taskA);
67 SD_task_dependency_add(NULL, NULL, taskC, taskA);
68 SD_task_dependency_add(NULL, NULL, taskD, taskB);
69 SD_task_dependency_add(NULL, NULL, taskD, taskC);
70 /* SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock */
75 SD_task_dependency_add(NULL, NULL, taskA, taskA); /* shouldn't work and must raise an exception */
76 xbt_die("Hey, I can add a dependency between Task A and Task A!");
79 if (ex.category != arg_error)
80 RETHROW; /* this is a serious error */
85 SD_task_dependency_add(NULL, NULL, taskB, taskA); /* shouldn't work and must raise an exception */
86 xbt_die("Oh oh, I can add an already existing dependency!");
89 if (ex.category != arg_error)
95 SD_task_dependency_remove(taskA, taskC); /* shouldn't work and must raise an exception */
96 xbt_die("Dude, I can remove an unknown dependency!");
99 if (ex.category != arg_error)
105 SD_task_dependency_remove(taskC, taskC); /* shouldn't work and must raise an exception */
106 xbt_die("Wow, I can remove a dependency between Task C and itself!");
109 if (ex.category != arg_error)
115 /* if everything is ok, no exception is forwarded or rethrown by main() */
118 SD_task_watch(taskD, SD_DONE);
119 SD_task_watch(taskB, SD_DONE);
120 SD_task_unwatch(taskD, SD_DONE);
123 /* scheduling parameters */
125 const int workstation_number = 2;
126 const SD_workstation_t workstation_list[] = {w1, w2};
127 double computation_amount[] = {computation_amount1, computation_amount2};
128 double communication_amount[] =
130 0, communication_amount12,
131 communication_amount21, 0
136 SD_task_t task = taskD;
137 INFO2("Estimated time for '%s': %f", SD_task_get_name(task),
138 SD_task_get_execution_time(task, workstation_number, workstation_list,
139 computation_amount, communication_amount, rate));
141 /* let's launch the simulation! */
143 SD_task_schedule(taskA, workstation_number, workstation_list,
144 computation_amount, communication_amount, rate);
145 SD_task_schedule(taskB, workstation_number, workstation_list,
146 computation_amount, communication_amount, rate);
147 SD_task_schedule(taskC, workstation_number, workstation_list,
148 computation_amount, communication_amount, rate);
149 SD_task_schedule(taskD, workstation_number, workstation_list,
150 computation_amount, communication_amount, rate);
152 SD_task_t *changed_tasks;
154 changed_tasks = SD_simulate(-1.0);
155 for (i = 0; changed_tasks[i] != NULL; i++) {
156 INFO3("Task '%s' start time: %f, finish time: %f",
157 SD_task_get_name(changed_tasks[i]),
158 SD_task_get_start_time(changed_tasks[i]),
159 SD_task_get_finish_time(changed_tasks[i]));
162 xbt_assert0(changed_tasks[0] == taskD &&
163 changed_tasks[1] == taskB &&
164 changed_tasks[2] == NULL,
165 "Unexpected simulation results");
167 xbt_free(changed_tasks);
169 DEBUG0("Destroying tasks...");
171 SD_task_destroy(taskA);
172 SD_task_destroy(taskB);
173 SD_task_destroy(taskC);
174 SD_task_destroy(taskD);
176 DEBUG0("Tasks destroyed. Exiting SimDag...");