Package xal.extension.solver.algorithm

Class SimplexSearchAlgorithm

java.lang.Object

xal.extension.solver.algorithm.SearchAlgorithm

xal.extension.solver.algorithm.SimplexSearchAlgorithm

All Implemented Interfaces:

AlgorithmScheduleListener, SolutionJudgeListener

public class SimplexSearchAlgorithm
extends SearchAlgorithm

Simplex optimization search algorithm.

Author:

shishlo

Field Summary

Fields inherited from class xal.extension.solver.algorithm.SearchAlgorithm

EFFICIENCY_COMPARATOR, problem

Constructor Summary

Constructors

Constructor	Description
SimplexSearchAlgorithm()	Empty constructor.

Method Summary

Modifier and Type	Method	Description
void	foundNewOptimalSolution(SolutionJudge source, List<Trial> solutions, Trial solution)	Send a message that a new optimal solution has been found.
String	getLabel()	Get the label for this search algorithm.
int	getMaxEvaluationsPerRun()	Get the maximum number of evaluations per run.
int	getMinEvaluationsPerRun()	Get the minimum number of evaluations per run.
int	globalRating()	Get the rating for this algorithm which in an integer between 0 and 10 and indicates how well this algorithm performs on global searches.
int	localRating()	Get the rating for this algorithm which in an integer between 0 and 10 and indicates how well this algorithm performs on local searches.
void	performRun(AlgorithmSchedule algorithmSchedule)	Calculate the next few trial points.
void	reset()	Reset this algorithm.
void	setProblem(Problem problem)	Set the specified problem to solve.
void	trialScored(AlgorithmSchedule schedule, Trial trial)	Handle a message that a trial has been scored.
void	trialVetoed(AlgorithmSchedule schedule, Trial trial)	Handle a message that a trial has been vetoed.

Methods inherited from class xal.extension.solver.algorithm.SearchAlgorithm

addSearchAlgorithmListener, algorithmRunExecuted, algorithmRunWillExecute, evaluateTrialPoint, executeRun, getEfficiency, getEvaluationsLeft, removeSearchAlgorithmListener, setProposedEvaluations

Methods inherited from class java.lang.Object

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

Constructor Details

SimplexSearchAlgorithm

public SimplexSearchAlgorithm()

Empty constructor.

Method Details

setProblem

public void setProblem(Problem problem)

Set the specified problem to solve. Override the inherited method to initialize the searcher.

Overrides:

setProblem in class SearchAlgorithm

Parameters:

problem - the problem to solve

reset

public void reset()

Reset this algorithm.

Overrides:

reset in class SearchAlgorithm

getLabel

public String getLabel()

Get the label for this search algorithm.

Specified by:

getLabel in class SearchAlgorithm

Returns:

The label for this algorithm

performRun

public void performRun(AlgorithmSchedule algorithmSchedule)

Calculate the next few trial points.

Specified by:

performRun in class SearchAlgorithm

getMinEvaluationsPerRun

public int getMinEvaluationsPerRun()

Get the minimum number of evaluations per run.

Overrides:

getMinEvaluationsPerRun in class SearchAlgorithm

Returns:

the minimum number of evaluation per run.

getMaxEvaluationsPerRun

public int getMaxEvaluationsPerRun()

Get the maximum number of evaluations per run.

Overrides:

getMaxEvaluationsPerRun in class SearchAlgorithm

Returns:

the maximum number of evaluation per run.

globalRating

public int globalRating()

Get the rating for this algorithm which in an integer between 0 and 10 and indicates how well this algorithm performs on global searches.

Returns:

The global search rating for this algorithm.

localRating

public int localRating()

Get the rating for this algorithm which in an integer between 0 and 10 and indicates how well this algorithm performs on local searches.

Returns:

The local search rating for this algorithm.

trialScored

public void trialScored(AlgorithmSchedule schedule,
 Trial trial)

Handle a message that a trial has been scored.

Specified by:

trialScored in interface AlgorithmScheduleListener

Overrides:

trialScored in class SearchAlgorithm

Parameters:

schedule - Description of the Parameter

trial - Description of the Parameter

trialVetoed

public void trialVetoed(AlgorithmSchedule schedule,
 Trial trial)

Handle a message that a trial has been vetoed.

Specified by:

trialVetoed in interface AlgorithmScheduleListener

Overrides:

trialVetoed in class SearchAlgorithm

Parameters:

schedule - Description of the Parameter

trial - Description of the Parameter

foundNewOptimalSolution

public void foundNewOptimalSolution(SolutionJudge source,
 List<Trial> solutions,
 Trial solution)

Send a message that a new optimal solution has been found.

Specified by:

foundNewOptimalSolution in interface SolutionJudgeListener

Overrides:

foundNewOptimalSolution in class SearchAlgorithm

Parameters:

source - The source of the new optimal solution.

solutions - The list of solutions.

solution - The new optimal solution.