1 /* Copyright (c) 2010. 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 "xbt/sysdep.h" /* calloc, printf */
11 /* Create a log channel to have nice outputs. */
13 #include "xbt/asserts.h"
14 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
15 "Messages specific for this msg example");
17 /** Emitter function */
18 int master(int argc, char *argv[])
20 long number_of_tasks = atol(argv[1]);
21 double task_comp_size = atof(argv[2]);
22 double task_comm_size = atof(argv[3]);
23 long slaves_count = atol(argv[4]);
25 //setting the variable "is_master" (previously declared) to value 1
26 TRACE_host_variable_set(MSG_host_self()->name, "is_master", 1);
28 TRACE_mark("msmark", "start_send_tasks");
30 for (i = 0; i < number_of_tasks; i++) {
32 task = MSG_task_create("task", task_comp_size, task_comm_size, NULL);
34 //setting the variable "task_creation" to value i
35 TRACE_host_variable_set(MSG_host_self()->name, "task_creation", i);
37 //setting the category of task to "compute"
38 //the category of a task must be defined before it is sent or executed
39 TRACE_msg_set_task_category(task, "compute");
40 MSG_task_send(task, "master_mailbox");
42 TRACE_mark("msmark", "finish_send_tasks");
44 for (i = 0; i < slaves_count; i++) {
45 m_task_t finalize = MSG_task_create("finalize", 0, 0, 0);
46 TRACE_msg_set_task_category(finalize, "finalize");
47 MSG_task_send(finalize, "master_mailbox");
53 /** Receiver function */
54 int slave(int argc, char *argv[])
58 TRACE_host_variable_set(MSG_host_self()->name, "is_slave", 1);
60 MSG_task_receive(&(task), "master_mailbox");
62 if (!strcmp(MSG_task_get_name(task), "finalize")) {
63 MSG_task_destroy(task);
66 //adding the value returned by MSG_task_get_compute_duration(task)
67 //to the variable "task_computation"
68 TRACE_host_variable_add(MSG_host_self()->name,
70 MSG_task_get_compute_duration(task));
71 MSG_task_execute(task);
72 MSG_task_destroy(task);
79 int main(int argc, char *argv[])
81 MSG_error_t res = MSG_OK;
83 MSG_global_init(&argc, argv);
85 printf("Usage: %s platform_file deployment_file\n", argv[0]);
89 char *platform_file = argv[1];
90 char *deployment_file = argv[2];
91 MSG_create_environment(platform_file);
93 //declaring user variables
94 TRACE_host_variable_declare("is_slave");
95 TRACE_host_variable_declare("is_master");
96 TRACE_host_variable_declare("task_creation");
97 TRACE_host_variable_declare("task_computation");
99 //declaring user markers
100 TRACE_declare_mark("msmark");
102 //declaring user categories with RGB colors (values from 0 to 1)
103 TRACE_category_with_color ("compute", "1 0 0"); //compute is red
104 TRACE_category_with_color ("finalize", "0 1 0"); //finalize is green
105 //categories without user-defined colors receive
106 //random colors generated by the tracing system
107 TRACE_category ("request");
108 TRACE_category_with_color ("report", NULL);
110 MSG_function_register("master", master);
111 MSG_function_register("slave", slave);
112 MSG_launch_application(deployment_file);