1 /* Copyright (c) 2010-2016. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/msg.h"
8 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_async_wait, "Messages specific for this msg example");
10 /* Main function of the Sender process */
11 static int sender(int argc, char *argv[])
13 xbt_assert(argc==7, "The sender function expects 6 arguments from the XML deployment file");
14 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s"); /* - number of tasks */
15 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s"); /* - computational cost */
16 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s"); /* - communication cost */
17 long receivers_count = xbt_str_parse_int(argv[4], "Invalid amount of receivers: %s"); /* - number of receivers */
18 double sleep_start_time = xbt_str_parse_double(argv[5], "Invalid sleep start time: %s"); /* - start time */
19 double sleep_test_time = xbt_str_parse_double(argv[6], "Invalid test time: %s"); /* - test time */
21 XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time, sleep_test_time);
23 MSG_process_sleep(sleep_start_time);
24 for (int i = 0; i < number_of_tasks; i++) {
28 snprintf(mailbox,79, "receiver-%ld", i % receivers_count);
29 snprintf(taskname,79, "Task_%d", i);
31 /* This process first creates a task and send it asynchronously with @ref MSG_task_isend. Then, if: */
32 msg_task_t task = MSG_task_create(taskname, task_comp_size, task_comm_size, NULL);
33 msg_comm_t comm = MSG_task_isend(task, mailbox);
34 XBT_INFO("Send to receiver-%ld Task_%d", i % receivers_count, i);
36 if (sleep_test_time > 0) { /* - "test_time" is set to 0, wait on @ref MSG_comm_wait */
37 while (MSG_comm_test(comm) == 0) { /* - Call @ref MSG_comm_test every "test_time" otherwise */
38 MSG_process_sleep(sleep_test_time);
41 MSG_comm_wait(comm, -1);
43 MSG_comm_destroy(comm);
46 for (int i = 0; i < receivers_count; i++) {
48 snprintf(mailbox,79, "receiver-%ld", i % receivers_count);
49 msg_task_t task = MSG_task_create("finalize", 0, 0, 0);
50 msg_comm_t comm = MSG_task_isend(task, mailbox);
51 XBT_INFO("Send to receiver-%ld finalize", i % receivers_count);
52 if (sleep_test_time > 0) {
53 while (MSG_comm_test(comm) == 0) {
54 MSG_process_sleep(sleep_test_time);
57 MSG_comm_wait(comm, -1);
59 MSG_comm_destroy(comm);
62 XBT_INFO("Goodbye now!");
66 /* Receiver process expects 3 arguments: */
67 static int receiver(int argc, char *argv[])
69 xbt_assert(argc==4, "The relay_runner function does not accept any parameter from the XML deployment file");
70 int id = xbt_str_parse_int(argv[1], "Invalid id: %s"); /* - unique id */
71 double sleep_start_time = xbt_str_parse_double(argv[2], "Invalid sleep start parameter: %s"); /* - start time */
72 double sleep_test_time = xbt_str_parse_double(argv[3], "Invalid sleep test parameter: %s"); /* - test time */
73 XBT_INFO("sleep_start_time : %f , sleep_test_time : %f", sleep_start_time, sleep_test_time);
75 MSG_process_sleep(sleep_start_time); /* This process first sleeps for "start time" seconds. */
78 snprintf(mailbox,79, "receiver-%d", id);
80 msg_task_t task = NULL;
81 msg_comm_t comm = MSG_task_irecv(&task, mailbox); /* Then it posts asynchronous receives (@ref MSG_task_irecv) and*/
82 XBT_INFO("Wait to receive a task");
84 if (sleep_test_time > 0) { /* - if "test_time" is set to 0, wait on @ref MSG_comm_wait */
85 while (MSG_comm_test(comm) == 0) { /* - Call @ref MSG_comm_test every "test_time" otherwise */
86 MSG_process_sleep(sleep_test_time);
89 msg_error_t res = MSG_comm_wait(comm, -1);
90 xbt_assert(res == MSG_OK, "MSG_task_get failed");
92 MSG_comm_destroy(comm);
94 XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
95 if (strcmp(MSG_task_get_name(task), "finalize") == 0) { /* If the received task is "finalize", the process ends */
96 MSG_task_destroy(task);
100 XBT_INFO("Processing \"%s\"", MSG_task_get_name(task)); /* Otherwise, the task is processed */
101 MSG_task_execute(task);
102 XBT_INFO("\"%s\" done", MSG_task_get_name(task));
103 MSG_task_destroy(task);
105 XBT_INFO("I'm done. See you!");
109 int main(int argc, char *argv[])
111 MSG_init(&argc, argv);
112 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
113 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
115 MSG_create_environment(argv[1]);/* - Load the platform description */
117 MSG_function_register("sender", sender);
118 MSG_function_register("receiver", receiver);
119 MSG_launch_application(argv[2]);/* - Deploy the sender and receiver processes */
121 msg_error_t res = MSG_main(); /* - Run the simulation */
123 XBT_INFO("Simulation time %g", MSG_get_clock());
125 return res != MSG_OK;