SimGrid  3.16
Versatile Simulation of Distributed Systems
examples/msg/trace-link-user-variables/trace-link-user-variables.c
/* Copyright (c) 2012-2016. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <simgrid/msg.h>
//dump function to create and execute a task
static void create_and_execute_task (void)
{
msg_task_t task = MSG_task_create("task", 1000000, 0, NULL);
}
static int trace_fun(int argc, char *argv[])
{
//set initial values for the link user variables this example only shows for links identified by "6" and "3" in the
//platform file
//Set the Link_Capacity variable
TRACE_link_variable_set("6", "Link_Capacity", 12.34);
TRACE_link_variable_set("3", "Link_Capacity", 56.78);
//Set the Link_Utilization variable
TRACE_link_variable_set("3", "Link_Utilization", 1.2);
TRACE_link_variable_set("6", "Link_Utilization", 3.4);
//run the simulation, update my variables accordingly
for (int i = 0; i < 10; i++) {
create_and_execute_task ();
//Add to link user variables
TRACE_link_variable_add ("3", "Link_Utilization", 5.6);
TRACE_link_variable_add ("6", "Link_Utilization", 7.8);
}
for (int i = 0; i < 10; i++) {
create_and_execute_task ();
//Subtract from link user variables
TRACE_link_variable_sub ("3", "Link_Utilization", 3.4);
TRACE_link_variable_sub ("6", "Link_Utilization", 5.6);
}
return 0;
}
int main(int argc, char *argv[])
{
MSG_init(&argc, argv);
xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
"\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
//declaring link user variables (one without, another with a RGB color)
TRACE_link_variable_declare("Link_Capacity");
TRACE_link_variable_declare_with_color ("Link_Utilization", "0.9 0.1 0.1");
//register functions and launch deployment
MSG_function_register("master", trace_fun);
MSG_function_register("worker", trace_fun);
return 0;
}