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, xbt_new0(double, 1));
28 *((double *) task->data) = MSG_get_clock();
30 switch ( MSG_task_send_with_timeout(task,mailbox,10.0) ) {
32 XBT_INFO("Send to %s completed", mailbox);
35 case MSG_HOST_FAILURE:
36 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
38 MSG_task_destroy(task);
41 case MSG_TRANSFER_FAILURE:
42 XBT_INFO("Mmh. Something went wrong with '%s'. Nevermind. Let's keep going!", mailbox);
44 MSG_task_destroy(task);
48 XBT_INFO ("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox);
50 MSG_task_destroy(task);
54 xbt_die( "Unexpected behavior");
58 XBT_INFO("All tasks have been dispatched. Let's tell everybody the computation is over.");
59 for (int i = 0; i < workers_count; i++) {
61 snprintf(mailbox, 255, "worker-%ld", i % workers_count);
62 msg_task_t task = MSG_task_create("finalize", 0, 0, FINALIZE);
64 switch (MSG_task_send_with_timeout(task,mailbox,1.0)) {
65 case MSG_HOST_FAILURE:
66 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
67 MSG_task_destroy(task);
70 case MSG_TRANSFER_FAILURE:
71 XBT_INFO("Mmh. Can't reach '%s'! Nevermind. Let's keep going!", mailbox);
72 MSG_task_destroy(task);
76 XBT_INFO("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox);
77 MSG_task_destroy(task);
85 xbt_die("Unexpected behavior with '%s'", mailbox);
89 XBT_INFO("Goodbye now!");
93 static int worker(int argc, char *argv[])
97 long id= xbt_str_parse_int(argv[1], "Invalid argument %s");
99 snprintf(mailbox, 79,"worker-%ld", id);
102 msg_task_t task = NULL;
103 XBT_INFO("Waiting a message on %s", mailbox);
104 int retcode = MSG_task_receive( &(task), mailbox);
105 if (retcode == MSG_OK) {
106 if (MSG_task_get_data(task) == FINALIZE) {
107 MSG_task_destroy(task);
110 XBT_INFO("Start execution...");
111 retcode = MSG_task_execute(task);
112 if (retcode == MSG_OK) {
113 XBT_INFO("Execution complete.");
115 MSG_task_destroy(task);
116 } else if (retcode == MSG_HOST_FAILURE) {
117 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
119 MSG_task_destroy(task);
122 XBT_INFO("Hey ?! What's up ? ");
123 xbt_die("Unexpected behavior");
125 } else if (retcode == MSG_HOST_FAILURE) {
126 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
128 } else if (retcode == MSG_TRANSFER_FAILURE) {
129 XBT_INFO("Mmh. Something went wrong. Nevermind. Let's keep going!");
131 xbt_die("Unexpected behavior");
134 XBT_INFO("I'm done. See you!");
138 int main(int argc, char *argv[])
140 MSG_init(&argc, argv);
141 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
142 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
144 MSG_create_environment(argv[1]);
146 MSG_function_register("master", master);
147 MSG_function_register("worker", worker);
148 MSG_launch_application(argv[2]);
150 msg_error_t res = MSG_main();
152 XBT_INFO("Simulation time %g", MSG_get_clock());
154 return res != MSG_OK;