1 /* Copyright (c) 2010, 2012-2015. 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 /** @addtogroup MSG_examples
9 * - <b>tracing/user_variables.c</b>: This program demonstrates how to trace user variables associated to the hosts of
10 * the platform file. You might want to run this program with the following parameters:
12 * --cfg=tracing/platform:yes
13 * (See \ref tracing_tracing_options for details)
16 #include "simgrid/msg.h"
18 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
20 static int master(int argc, char *argv[])
22 const char *hostname = MSG_host_get_name(MSG_host_self());
25 //the hostname has an empty HDD with a capacity of 100000 (bytes)
26 TRACE_host_variable_set(hostname, "HDD_capacity", 100000);
27 TRACE_host_variable_set(hostname, "HDD_utilization", 0);
29 for (i = 0; i < 10; i++) {
30 //create and execute a task just to make the simulated time advance
31 msg_task_t task = MSG_task_create("task", 10000, 0, NULL);
32 MSG_task_execute (task);
33 MSG_task_destroy (task);
35 //ADD: after the execution of this task, the HDD utilization increases by 100 (bytes)
36 TRACE_host_variable_add(hostname, "HDD_utilization", 100);
39 for (i = 0; i < 10; i++) {
40 //create and execute a task just to make the simulated time advance
41 msg_task_t task = MSG_task_create("task", 10000, 0, NULL);
42 MSG_task_execute (task);
43 MSG_task_destroy (task);
45 //SUB: after the execution of this task, the HDD utilization decreases by 100 (bytes)
46 TRACE_host_variable_sub(hostname, "HDD_utilization", 100);
51 int main(int argc, char *argv[])
53 MSG_init(&argc, argv);
55 printf("Usage: %s platform_file deployment_file\n", argv[0]);
59 MSG_create_environment(argv[1]);
61 //declaring user variables
62 TRACE_host_variable_declare("HDD_capacity");
63 TRACE_host_variable_declare("HDD_utilization");
65 //register functions and launch deployment
66 MSG_function_register("master", master);
67 MSG_function_register("slave", master);
68 MSG_launch_application(argv[2]);
72 //get user declared variables
75 xbt_dynar_t host_variables = TRACE_get_host_variables ();
77 XBT_INFO ("Declared host variables:");
78 xbt_dynar_foreach (host_variables, cursor, variable){
79 XBT_INFO ("%s", variable);
81 xbt_dynar_free (&host_variables);
83 xbt_dynar_t link_variables = TRACE_get_link_variables ();
85 XBT_INFO ("Declared link variables:");
86 xbt_dynar_foreach (link_variables, cursor, variable){
87 XBT_INFO ("%s", variable);
89 xbt_dynar_free (&link_variables);
92 //create a customized viva graph configuration file
94 fp = fopen ("viva_graph.plist", "w");
98 fprintf (fp, "{\n node = (");
99 xbt_dynar_t nodes_type = TRACE_get_node_types ();
101 XBT_INFO ("Node types in the trace:");
103 xbt_dynar_foreach (nodes_type, cursor, node_type){
104 XBT_INFO ("%s", node_type);
105 fprintf (fp, "%s, ", node_type);
107 xbt_dynar_free (&nodes_type);
109 fprintf (fp, ");\n edge = (");
110 xbt_dynar_t edges_type = TRACE_get_edge_types ();
112 XBT_INFO ("Node types in the trace:");
114 xbt_dynar_foreach (edges_type, cursor, edge_type){
115 XBT_INFO ("%s", edge_type);
116 fprintf (fp, "%s, ", edge_type);
118 xbt_dynar_free (&edges_type);
120 fprintf (fp, ");\n");
121 fprintf (fp, " host = {\n type = square;\n size = HDD_capacity; \n values = (HDD_utilization);\n };\n");
122 fprintf (fp, " link = {\n type = rhombus;\n size = bandwidth;\n };\n");