Class CoMoMSolver

java.lang.Object

solvers.queueingnet.QNSolver

solvers.queueingnet.CoMoMSolver

All Implemented Interfaces:

QNSolverInterface

Direct Known Subclasses:

CoMoMBTFSolver, CoMoMSimpleSolver

public class CoMoMSolver
extends QNSolver

This class provides the high-level implementation of the CoMoM algorithm, it is programmed to the interface provided by the LinearSystem class. Sub-classes must choose the linear system they are to use.

Author:

Jack Bradshaw *

Field Summary

Fields

Modifier and Type	Field	Description
protected CoMoMBasis	basis
protected LinearSystem	system

Fields inherited from class QNSolver

G, memUsage, qnm, totalTimer

Constructor Summary

Constructors

Constructor	Description
CoMoMSolver(QNModel qnm)

Method Summary

Modifier and Type	Method	Description
void	computeNormalisingConstant()	Computes the normalising constant for the specified QNModel.
void	computePerformanceMeasures()	Computes and stores the performance measures (mean throughputs and mean queue lengths for the current model.

Methods inherited from class QNSolver

getNormalisingConstant, printMemUsage, printTimeStatistics, printWelcome

Methods inherited from class Object

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

Field Details

system

protected LinearSystem system

basis

protected CoMoMBasis basis

Constructor Details

CoMoMSolver

public CoMoMSolver(QNModel qnm)
            throws InternalErrorException

Throws:

InternalErrorException

Method Details

computeNormalisingConstant

public void computeNormalisingConstant()
                                throws InternalErrorException,
OperationNotSupportedException,
InconsistentLinearSystemException,
BTFMatrixErrorException

Description copied from class: QNSolver

Computes the normalising constant for the specified QNModel.

Specified by:

computeNormalisingConstant in interface QNSolverInterface

Overrides:

computeNormalisingConstant in class QNSolver

Throws:

InternalErrorException - * @throws InternalErrorException An exception is thrown if any internal error is encountered during computations.

OperationNotSupportedException

InconsistentLinearSystemException

BTFMatrixErrorException

computePerformanceMeasures

public void computePerformanceMeasures()
                                throws InternalErrorException

Description copied from class: QNSolver

Computes and stores the performance measures (mean throughputs and mean queue lengths for the current model.

Specified by:

computePerformanceMeasures in interface QNSolverInterface

Overrides:

computePerformanceMeasures in class QNSolver

Throws:

InternalErrorException - Thrown when any computation fails