// $Id: ConstSysProperties.java,v 1.6 2007/11/07 08:56:27 zahorjan Exp $

/**
 * These control the behavior of the simulated system.  You can
 * alter them ONLY to see how they affect performance.  But,
 * they're properties of the system, not choices that can
 * be affected by software implementation strategies, so
 * cannot be used to 'tune' your approach.
 */

public class ConstSysProperties {

    /**
     * Probability that a node has its update method called
     * during each time step.  This is one way the simulator
     * mimics the randomness of timing that occurs in real 
     * system.
     */
    public static final double UPDATE_PROB = 0.90;

    /**
     * Mean time to failure for each individual node,
     * measured in time steps.
     */
    public static final int NODE_MTF = 10000;

    /**
     * Mean time to recovery for each individual node,
     * measured in time steps.
     */
    public static final int NODE_MTR = 200;

    /**
     * A weight applied to update message overhead in computing
     * a score.  It represents, roughly, the fraction of all data
     * traffic a single update packet from each node to each other 
     * node would be.
     */
    public static final double UPDATE_PACKET_OVERHEAD_WEIGHT = 0.01;

}