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 int master(int argc, char *argv[]);
18 int slave(int argc, char *argv[]);
20 /** Emitter function */
21 int master(int argc, char *argv[])
23 long number_of_tasks = atol(argv[1]);
24 double task_comp_size = atof(argv[2]);
25 double task_comm_size = atof(argv[3]);
26 long slaves_count = atol(argv[4]);
28 //setting the variable "is_master" (previously declared) to value 1
29 TRACE_host_variable_set(MSG_host_self()->name, "is_master", 1);
31 TRACE_mark("msmark", "start_send_tasks");
33 for (i = 0; i < number_of_tasks; i++) {
35 task = MSG_task_create("task", task_comp_size, task_comm_size, NULL);
37 //setting the variable "task_creation" to value i
38 TRACE_host_variable_set(MSG_host_self()->name, "task_creation", i);
40 //setting the category of task to "compute"
41 //the category of a task must be defined before it is sent or executed
42 TRACE_msg_set_task_category(task, "compute");
43 MSG_task_send(task, "master_mailbox");
45 TRACE_mark("msmark", "finish_send_tasks");
47 for (i = 0; i < slaves_count; i++) {
48 m_task_t finalize = MSG_task_create("finalize", 0, 0, 0);
49 TRACE_msg_set_task_category(finalize, "finalize");
50 MSG_task_send(finalize, "master_mailbox");
56 /** Receiver function */
57 int slave(int argc, char *argv[])
61 TRACE_host_variable_set(MSG_host_self()->name, "is_slave", 1);
63 MSG_task_receive(&(task), "master_mailbox");
65 if (!strcmp(MSG_task_get_name(task), "finalize")) {
66 MSG_task_destroy(task);
69 //adding the value returned by MSG_task_get_compute_duration(task)
70 //to the variable "task_computation"
71 TRACE_host_variable_add(MSG_host_self()->name,
73 MSG_task_get_compute_duration(task));
74 MSG_task_execute(task);
75 MSG_task_destroy(task);
82 int main(int argc, char *argv[])
84 MSG_global_init(&argc, argv);
86 printf("Usage: %s platform_file deployment_file\n", argv[0]);
90 char *platform_file = argv[1];
91 char *deployment_file = argv[2];
92 MSG_create_environment(platform_file);
94 //declaring user variables
95 TRACE_host_variable_declare("is_slave");
96 TRACE_host_variable_declare("is_master");
97 TRACE_host_variable_declare("task_creation");
98 TRACE_host_variable_declare("task_computation");
100 //declaring user markers
101 TRACE_declare_mark("msmark");
103 //declaring user categories with RGB colors (values from 0 to 1)
104 TRACE_category_with_color ("compute", "1 0 0"); //compute is red
105 TRACE_category_with_color ("finalize", "0 1 0"); //finalize is green
106 //categories without user-defined colors receive
107 //random colors generated by the tracing system
108 TRACE_category ("request");
109 TRACE_category_with_color ("report", NULL);
111 MSG_function_register("master", master);
112 MSG_function_register("slave", slave);
113 MSG_launch_application(deployment_file);