1 /* Copyright (c) 2010-2016. 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 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_trace_masterworker, "Messages specific for this msg example");
10 static int master(int argc, char *argv[])
12 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s");
13 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s");
14 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s");
15 long workers_count = xbt_str_parse_int(argv[4], "Invalid amount of workers: %s");
17 //setting the variable "is_master" (previously declared) to value 1
18 TRACE_host_variable_set(MSG_host_get_name(MSG_host_self()), "is_master", 1);
20 TRACE_mark("msmark", "start_send_tasks");
21 for (int i = 0; i < number_of_tasks; i++) {
22 msg_task_t task = NULL;
23 task = MSG_task_create("task", task_comp_size, task_comm_size, NULL);
25 //setting the variable "task_creation" to value i
26 TRACE_host_variable_set(MSG_host_get_name(MSG_host_self()), "task_creation", i);
28 //setting the category of task to "compute"
29 //the category of a task must be defined before it is sent or executed
30 MSG_task_set_category(task, "compute");
31 MSG_task_send(task, "master_mailbox");
33 TRACE_mark("msmark", "finish_send_tasks");
35 for (int i = 0; i < workers_count; i++) {
36 msg_task_t finalize = MSG_task_create("finalize", 0, 0, 0);
37 MSG_task_set_category(finalize, "finalize");
38 MSG_task_send(finalize, "master_mailbox");
44 static int worker(int argc, char *argv[])
46 msg_task_t task = NULL;
48 TRACE_host_variable_set(MSG_host_get_name(MSG_host_self()), "is_worker", 1);
49 TRACE_host_variable_set(MSG_host_get_name(MSG_host_self()), "task_computation", 0);
51 MSG_task_receive(&(task), "master_mailbox");
53 if (!strcmp(MSG_task_get_name(task), "finalize")) {
54 MSG_task_destroy(task);
57 //adding the value returned by MSG_task_get_compute_duration(task)
58 //to the variable "task_computation"
59 TRACE_host_variable_add(MSG_host_get_name(MSG_host_self()), "task_computation", MSG_task_get_flops_amount(task));
60 MSG_task_execute(task);
61 MSG_task_destroy(task);
67 int main(int argc, char *argv[])
69 MSG_init(&argc, argv);
70 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
71 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
73 MSG_create_environment(argv[1]);
75 //declaring user variables
76 TRACE_host_variable_declare("is_worker");
77 TRACE_host_variable_declare("is_master");
78 TRACE_host_variable_declare("task_creation");
79 TRACE_host_variable_declare("task_computation");
81 //declaring user markers and values
82 TRACE_declare_mark("msmark");
83 TRACE_declare_mark_value ("msmark", "start_send_tasks");
84 TRACE_declare_mark_value ("msmark", "finish_send_tasks");
86 //declaring user categories with RGB colors (values from 0 to 1)
87 TRACE_category_with_color ("compute", "1 0 0"); //compute is red
88 TRACE_category_with_color ("finalize", "0 1 0"); //finalize is green
89 //categories without user-defined colors receive random colors generated by the tracing system
90 TRACE_category ("request");
91 TRACE_category_with_color ("report", NULL);
93 MSG_function_register("master", master);
94 MSG_function_register("worker", worker);
95 MSG_launch_application(argv[2]);
100 xbt_dynar_t categories = TRACE_get_categories ();
102 XBT_INFO ("Declared tracing categories:");
104 xbt_dynar_foreach (categories, cursor, category){
105 XBT_INFO ("%s", category);
107 xbt_dynar_free (&categories);
110 xbt_dynar_t marks = TRACE_get_marks ();
112 XBT_INFO ("Declared marks:");
114 xbt_dynar_foreach (marks, cursor, mark){
115 XBT_INFO ("%s", mark);
117 xbt_dynar_free (&marks);