1 /* Copyright (c) 2007-2012, 2014-2015. 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. */
9 #include "simgrid/simdag.h"
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(basic5, sd, "SimDag test basic5");
14 /* Basic SimDag Test 5
16 * - Create a no-op Init task
17 * - Create two tasks: send 100kB and compute 10Mflops
18 * - Schedule them concurrently
19 * The two tasks should overlap smoothly as they use different resources.
20 * Simulated time should be:
21 * MAX(1e5/(1.25e8), 1e7/4e9) = MAX(.0009, .0025) = 0.0025 seconds
23 int main(int argc, char **argv)
26 /* creation of the tasks and their dependencies */
31 /* scheduling parameters */
33 double no_cost[] = { 0., 0., 0., 0. };
34 double amount[] = { 0., 100000., 0., 0. };
35 double comput[] = { 10000000. };
37 /* initialization of SD */
40 /* creation of the environment */
41 SD_create_environment(argv[1]);
43 /* creation of the tasks and their dependencies */
44 taskInit = SD_task_create("Task Init", NULL, 1.0);
45 taskA = SD_task_create("Task A", NULL, 1.0);
46 taskB = SD_task_create("Task B", NULL, 1.0);
48 /* let's launch the simulation! */
49 SD_task_schedule(taskInit, 1, sg_host_list(), no_cost,
51 SD_task_schedule(taskA, 2, sg_host_list(), no_cost, amount,
53 SD_task_schedule(taskB, 1, sg_host_list(), comput, no_cost,
56 SD_task_dependency_add(NULL, NULL, taskInit, taskA);
57 SD_task_dependency_add(NULL, NULL, taskInit, taskB);
60 SD_task_destroy(taskInit);
61 SD_task_destroy(taskA);
62 SD_task_destroy(taskB);
64 XBT_INFO("Simulation time: %f", SD_get_clock());