Package jline.api.sn

Class SnOpenProbTerms

java.lang.Object

jline.api.sn.SnOpenProbTerms

public final class SnOpenProbTerms
extends Object

Open-class contribution to an aggregate state probability at one station.

The mixed branch shared by getProbAggr and getProbSysAggr: a Delay carries an independent Poisson per open class, a queueing station carries the multinomial-geometric product form in its utilizations, and a Source (EXT) carries neither, its population belonging to the environment. The system probability is the sum of these terms over the stations, plus the closed classes' multinomial, so both getters call this one method.

Mirrors @SolverMVA/getProbAggr.m and @SolverFLD/getProbAggr.m and the native Python _open_prob_aggr_terms.

Since:

LINE 3.0

Method Summary

Modifier and Type	Method	Description
static double	snOpenProbTerms(NetworkStruct sn, Matrix Q, Matrix U, Matrix nir, int ist)	Log-probability contributed by the open classes at one station.

Methods inherited from class java.lang.Object

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

Method Details

snOpenProbTerms

public static double snOpenProbTerms(NetworkStruct sn,
 Matrix Q,
 Matrix U,
 Matrix nir,
 int ist)

Log-probability contributed by the open classes at one station.

Parameters:

sn - the NetworkStruct object for the queueing network model

Q - mean queue lengths, stations by classes

U - utilizations, stations by classes

nir - per-class job counts at station ist, as a row

ist - station index (0-based)

Returns:

the log contribution, or negative infinity for an impossible state