1 /* Copyright (c) 2007-2015. 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. */
7 #include "simgrid/msg.h"
9 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
11 #define FINALIZE ((void*)221297) /* a magic number to tell people to stop working */
13 static int master(int argc, char *argv[])
17 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s");
18 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s");
19 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s");
20 long workers_count = xbt_str_parse_int(argv[4], "Invalid amount of workers: %s");
22 XBT_INFO("Got %ld workers and %ld tasks to process", workers_count, number_of_tasks);
24 for (i = 0; i < number_of_tasks; i++) {
26 snprintf(mailbox, 255, "worker-%ld", i % workers_count);
28 msg_task_t task = MSG_task_create("Task", task_comp_size, task_comm_size, xbt_new0(double, 1));
29 *((double *) task->data) = MSG_get_clock();
31 switch ( MSG_task_send_with_timeout(task,mailbox,10.0) ) {
33 XBT_INFO("Send completed");
36 case MSG_HOST_FAILURE:
37 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
39 MSG_task_destroy(task);
42 case MSG_TRANSFER_FAILURE:
43 XBT_INFO("Mmh. Something went wrong with '%s'. Nevermind. Let's keep going!", mailbox);
45 MSG_task_destroy(task);
49 XBT_INFO ("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox);
51 MSG_task_destroy(task);
55 xbt_die( "Unexpected behavior");
59 XBT_INFO("All tasks have been dispatched. Let's tell everybody the computation is over.");
60 for (i = 0; i < workers_count; i++) {
62 snprintf(mailbox, 255, "worker-%ld", i % workers_count);
63 msg_task_t task = MSG_task_create("finalize", 0, 0, FINALIZE);
65 switch (MSG_task_send_with_timeout(task,mailbox,1.0)) {
66 case MSG_HOST_FAILURE:
67 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
68 MSG_task_destroy(task);
71 case MSG_TRANSFER_FAILURE:
72 XBT_INFO("Mmh. Can't reach '%s'! Nevermind. Let's keep going!", mailbox);
73 MSG_task_destroy(task);
77 XBT_INFO("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox);
78 MSG_task_destroy(task);
86 xbt_die("Unexpected behavior with '%s'", mailbox);
90 XBT_INFO("Goodbye now!");
94 static int worker(int argc, char *argv[])
96 msg_task_t task = NULL;
99 long id= xbt_str_parse_int(argv[1], "Invalid argument %s");
101 snprintf(mailbox, 79,"worker-%ld", id);
104 double time1 = MSG_get_clock();
105 int retcode = MSG_task_receive( &(task), mailbox);
106 double time2 = MSG_get_clock();
107 if (retcode == MSG_OK) {
108 XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
109 if (MSG_task_get_data(task) == FINALIZE) {
110 MSG_task_destroy(task);
114 if (time1 < *((double *) task->data))
115 time1 = *((double *) task->data);
116 XBT_INFO("Communication time : \"%f\"", time2 - time1);
117 XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
118 retcode = MSG_task_execute(task);
119 if (retcode == MSG_OK) {
120 XBT_INFO("\"%s\" done", MSG_task_get_name(task));
121 MSG_task_destroy(task);
123 } else if (retcode == MSG_HOST_FAILURE) {
124 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
125 MSG_task_destroy(task);
129 XBT_INFO("Hey ?! What's up ? ");
130 xbt_die("Unexpected behavior");
132 } else if (retcode == MSG_HOST_FAILURE) {
133 XBT_INFO("Gloups. The cpu on which I'm running just turned off!. See you!");
135 } else if (retcode == MSG_TRANSFER_FAILURE) {
136 XBT_INFO("Mmh. Something went wrong. Nevermind. Let's keep going!");
138 xbt_die("Unexpected behavior");
141 XBT_INFO("I'm done. See you!");
145 int main(int argc, char *argv[])
147 msg_error_t res = MSG_OK;
149 MSG_init(&argc, argv);
150 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
151 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
153 MSG_create_environment(argv[1]);
155 MSG_function_register("master", master);
156 MSG_function_register("worker", worker);
157 MSG_launch_application(argv[2]);
161 XBT_INFO("Simulation time %g", MSG_get_clock());
163 return res != MSG_OK;