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 trace_fun(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);
54 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
55 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
57 MSG_create_environment(argv[1]);
59 //declaring user variables
60 TRACE_host_variable_declare("HDD_capacity");
61 TRACE_host_variable_declare("HDD_utilization");
63 //register functions and launch deployment
64 MSG_function_register("master", trace_fun);
65 MSG_function_register("worker", trace_fun);
66 MSG_launch_application(argv[2]);
70 //get user declared variables
73 xbt_dynar_t host_variables = TRACE_get_host_variables ();
75 XBT_INFO ("Declared host variables:");
76 xbt_dynar_foreach (host_variables, cursor, variable){
77 XBT_INFO ("%s", variable);
79 xbt_dynar_free (&host_variables);
81 xbt_dynar_t link_variables = TRACE_get_link_variables ();
83 XBT_INFO ("Declared link variables:");
84 xbt_dynar_foreach (link_variables, cursor, variable){
85 XBT_INFO ("%s", variable);
87 xbt_dynar_free (&link_variables);
90 //create a customized viva graph configuration file
92 fp = fopen ("viva_graph.plist", "w");
96 fprintf (fp, "{\n node = (");
97 xbt_dynar_t nodes_type = TRACE_get_node_types ();
99 XBT_INFO ("Node types in the trace:");
101 xbt_dynar_foreach (nodes_type, cursor, node_type){
102 XBT_INFO ("%s", node_type);
103 fprintf (fp, "%s, ", node_type);
105 xbt_dynar_free (&nodes_type);
107 fprintf (fp, ");\n edge = (");
108 xbt_dynar_t edges_type = TRACE_get_edge_types ();
110 XBT_INFO ("Node types in the trace:");
112 xbt_dynar_foreach (edges_type, cursor, edge_type){
113 XBT_INFO ("%s", edge_type);
114 fprintf (fp, "%s, ", edge_type);
116 xbt_dynar_free (&edges_type);
118 fprintf (fp, ");\n");
119 fprintf (fp, " host = {\n type = square;\n size = HDD_capacity; \n values = (HDD_utilization);\n };\n");
120 fprintf (fp, " link = {\n type = rhombus;\n size = bandwidth;\n };\n");