1 /* Copyright (c) 2007-2019. 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 #include <stdio.h> /* snprintf */
10 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
12 #define FINALIZE ((void*)221297) /* a magic number to tell people to stop working */
14 static int master(int argc, char *argv[])
16 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s");
17 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s");
18 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s");
19 long workers_count = xbt_str_parse_int(argv[4], "Invalid amount of workers: %s");
21 XBT_INFO("Got %ld workers and %ld tasks to process", workers_count, number_of_tasks);
23 for (int i = 0; i < number_of_tasks; i++) {
25 snprintf(mailbox, 255, "worker-%ld", i % workers_count);
26 XBT_INFO("Send a message to %s", mailbox);
27 msg_task_t task = MSG_task_create("Task", task_comp_size, task_comm_size, NULL);
29 switch ( MSG_task_send_with_timeout(task,mailbox,10.0) ) {
31 XBT_INFO("Send to %s completed", mailbox);
34 case MSG_TRANSFER_FAILURE:
35 XBT_INFO("Mmh. Something went wrong with '%s'. Nevermind. Let's keep going!", mailbox);
36 MSG_task_destroy(task);
40 XBT_INFO ("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox);
41 MSG_task_destroy(task);
45 xbt_die( "Unexpected behavior");
49 XBT_INFO("All tasks have been dispatched. Let's tell everybody the computation is over.");
50 for (int i = 0; i < workers_count; i++) {
52 snprintf(mailbox, 255, "worker-%ld", i % workers_count);
53 msg_task_t task = MSG_task_create("finalize", 0, 0, FINALIZE);
55 switch (MSG_task_send_with_timeout(task,mailbox,1.0)) {
57 case MSG_TRANSFER_FAILURE:
58 XBT_INFO("Mmh. Can't reach '%s'! Nevermind. Let's keep going!", mailbox);
59 MSG_task_destroy(task);
63 XBT_INFO("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox);
64 MSG_task_destroy(task);
72 xbt_die("Unexpected behavior with '%s'", mailbox);
76 XBT_INFO("Goodbye now!");
80 static int worker(int argc, char *argv[])
84 long id= xbt_str_parse_int(argv[1], "Invalid argument %s");
86 snprintf(mailbox, 79,"worker-%ld", id);
89 msg_task_t task = NULL;
90 XBT_INFO("Waiting a message on %s", mailbox);
91 int retcode = MSG_task_receive( &(task), mailbox);
92 if (retcode == MSG_OK) {
93 if (MSG_task_get_data(task) == FINALIZE) {
94 MSG_task_destroy(task);
97 XBT_INFO("Start execution...");
98 retcode = MSG_task_execute(task);
99 if (retcode == MSG_OK) {
100 XBT_INFO("Execution complete.");
101 MSG_task_destroy(task);
103 XBT_INFO("Hey ?! What's up ? ");
104 xbt_die("Unexpected behavior");
106 } else if (retcode == MSG_TRANSFER_FAILURE) {
107 XBT_INFO("Mmh. Something went wrong. Nevermind. Let's keep going!");
109 xbt_die("Unexpected behavior");
112 XBT_INFO("I'm done. See you!");
116 int main(int argc, char *argv[])
118 MSG_init(&argc, argv);
119 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
120 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
122 MSG_create_environment(argv[1]);
124 MSG_function_register("master", master);
125 MSG_function_register("worker", worker);
126 MSG_launch_application(argv[2]);
128 msg_error_t res = MSG_main();
130 XBT_INFO("Simulation time %g", MSG_get_clock());
132 return res != MSG_OK;