1 /* Copyright (c) 2007-2019. The SimGrid Team.
2 * All rights reserved. */
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. */
7 #include "simgrid/simdag.h"
10 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(basic5, sd, "SimDag test basic5");
12 /* Basic SimDag Test 5
14 * - Create a no-op Init task
15 * - Create two tasks: send 100kB and compute 10Mflops
16 * - Schedule them concurrently
17 * The two tasks should overlap smoothly as they use different resources.
18 * Simulated time should be:
19 * MAX(1e5/(1.25e8), 1e7/4e9) = MAX(.0009, .0025) = 0.0025 seconds
21 int main(int argc, char **argv)
23 /* scheduling parameters */
24 double no_cost[] = { 0., 0., 0., 0. };
25 double amount[] = { 0., 100000., 0., 0. };
26 double comput[] = { 10000000. };
28 /* initialization of SD */
31 /* creation of the environment */
32 SD_create_environment(argv[1]);
34 /* creation of the tasks and their dependencies */
35 SD_task_t taskInit = SD_task_create("Task Init", NULL, 1.0);
36 SD_task_t taskA = SD_task_create("Task A", NULL, 1.0);
37 SD_task_t taskB = SD_task_create("Task B", NULL, 1.0);
39 SD_task_dependency_add(taskInit, taskA);
40 SD_task_dependency_add(taskInit, taskB);
42 sg_host_t *hosts = sg_host_list();
43 SD_task_schedule(taskInit, 1, hosts, no_cost, no_cost, -1.0);
44 SD_task_schedule(taskA, 2, hosts, no_cost, amount, -1.0);
45 SD_task_schedule(taskB, 1, hosts, comput, no_cost, -1.0);
48 /* let's launch the simulation! */
50 SD_task_destroy(taskInit);
51 SD_task_destroy(taskA);
52 SD_task_destroy(taskB);
54 XBT_INFO("Simulation time: %f", SD_get_clock());