Package jline.examples.java.basic

Class OpenNNPPModel

java.lang.Object

jline.examples.java.basic.OpenNNPPModel

public class OpenNNPPModel
extends Object

Open queueing network with an NNPP (nonstationary non-Poisson) arrival process.

NNPP takes a rate function lambda(t) on [0, S] and a dispersion ratio C, the variance-to-mean ratio of the arrival counts. With C = 1 it is the nonhomogeneous Poisson process of rate lambda(t), generated by Lewis-Shedler thinning; with C != 1 it is generated by SCIATA (Liu, Kuhl, Liu and Wilson, WSC 2015). NNPP is supported by LDES only, as an arrival process.

Constructor Summary

Constructors

Constructor	Description
OpenNNPPModel()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)	Solves the NNPP model with the LDES simulation engine and prints the average performance table.
static Network	oqn_nnpp()	Open M/M/1-like queue whose Source uses a cyclic NNPP arrival stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

OpenNNPPModel

public OpenNNPPModel()

Method Details

oqn_nnpp

public static Network oqn_nnpp()

Open M/M/1-like queue whose Source uses a cyclic NNPP arrival stream. The rate interpolates linearly through (0,10), (2,40), (5,5), (8,20) and repeats every 8 time units, with dispersion ratio 0.5. The time-average rate is 155/8 = 19.375, so the Exp(38.75) server runs at utilization 0.5.

Returns:

configured open network with an NNPP arrival process

main

public static void main(String[] args)
                 throws Exception

Solves the NNPP model with the LDES simulation engine and prints the average performance table.

Parameters:

args - command line arguments (not used)

Throws:

Exception - if the solver encounters an error