1 /* Copyright (c) 2010-2020. 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 xbt_assert(argc == 5);
13 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s");
14 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s");
15 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s");
16 long workers_count = xbt_str_parse_int(argv[4], "Invalid amount of workers: %s");
18 //setting the variable "is_master" (previously declared) to value 1
19 TRACE_host_variable_set(MSG_host_get_name(MSG_host_self()), "is_master", 1);
21 TRACE_mark("msmark", "start_send_tasks");
22 for (int i = 0; i < number_of_tasks; i++) {
23 msg_task_t 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(XBT_ATTRIB_UNUSED int argc, XBT_ATTRIB_UNUSED 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") == 0) {
54 MSG_task_destroy(task);
57 // adding the value returned by MSG_task_get_compute_duration(task) to the variable "task_computation"
58 TRACE_host_variable_add(MSG_host_get_name(MSG_host_self()), "task_computation", MSG_task_get_flops_amount(task));
59 MSG_task_execute(task);
60 MSG_task_destroy(task);
66 int main(int argc, char *argv[])
68 MSG_init(&argc, argv);
69 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
70 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
72 MSG_create_environment(argv[1]);
74 //declaring user variables
75 TRACE_host_variable_declare("is_worker");
76 TRACE_host_variable_declare("is_master");
77 TRACE_host_variable_declare("task_creation");
78 TRACE_host_variable_declare("task_computation");
80 //declaring user markers and values
81 TRACE_declare_mark("msmark");
82 TRACE_declare_mark_value ("msmark", "start_send_tasks");
83 TRACE_declare_mark_value ("msmark", "finish_send_tasks");
85 //declaring user categories with RGB colors (values from 0 to 1)
86 TRACE_category_with_color ("compute", "1 0 0"); //compute is red
87 TRACE_category_with_color ("finalize", "0 1 0"); //finalize is green
88 //categories without user-defined colors receive random colors generated by the tracing system
89 TRACE_category ("request");
90 TRACE_category_with_color ("report", NULL);
92 MSG_function_register("master", master);
93 MSG_function_register("worker", worker);
94 MSG_launch_application(argv[2]);
99 xbt_dynar_t categories = TRACE_get_categories ();
101 XBT_INFO ("Declared tracing categories:");
103 xbt_dynar_foreach (categories, cursor, category){
104 XBT_INFO ("%s", category);
106 xbt_dynar_free (&categories);
109 xbt_dynar_t marks = TRACE_get_marks ();
111 XBT_INFO ("Declared marks:");
113 xbt_dynar_foreach (marks, cursor, mark){
114 XBT_INFO ("%s", mark);
116 xbt_dynar_free (&marks);