SimplexSolverParams Class

Article
12/06/2011

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Defines the parameters used by the simplex solver.

Inheritance Hierarchy

System.Object
Microsoft.SolverFoundation.Solvers.SimplexSolverParams

Namespace: Microsoft.SolverFoundation.Solvers
Assembly: Microsoft.Solver.Foundation (in Microsoft.Solver.Foundation.dll)

Syntax

'Declaration
Public Class SimplexSolverParams _
    Implements ISolverParameters, ISolverEvents

public class SimplexSolverParams : ISolverParameters, 
    ISolverEvents

public ref class SimplexSolverParams : ISolverParameters, 
    ISolverEvents

type SimplexSolverParams =  
    class
        interface ISolverParameters
        interface ISolverEvents
    end

public class SimplexSolverParams implements ISolverParameters, ISolverEvents

The SimplexSolverParams type exposes the following members.

Constructors

	Name	Description
	SimplexSolverParams()	Initializes a new instance of the SimplexSolverParams class.
	SimplexSolverParams(Func<TResult>)	Initializes a new instance of the SimplexSolverParams class.
	SimplexSolverParams(Directive)	Initializes a new instance of the SimplexSolverParams class using the specified directive.
	SimplexSolverParams(SimplexSolverParams)	Initializes a new instance of the SimplexSolverParams class.

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Properties

	Name	Description
	Abort	Gets or sets a value that specifies whether the solver should stop.
	Algorithm	Gets or sets the type of simplex algorithm to use.
	Costing	Gets or sets the simplex costing.
	CostTolerance	Gets or sets the numeric tolerance for simplex pricing.
	CutKinds	Gets or sets the kinds of cuts that are generated.
	GeometricScalingThreshold	Gets or sets the threshold of geometric scaling in the reduced model.
	GetInfeasibilityReport	Gets or sets a value that specifies whether to create an infeasibility report.
	GetSensitivityReport	Gets or sets a value that specifies whether to create a sensitivity report.
	InitialBasisKind	Gets or sets the initial basis for the simplex solver.
	KindOfSolver	Gets the type of solver to use.
	MaxGeometricScalingIterations	Gets or sets the upper limit for geometric scaling in the reduced model.
	MaxPivotCount	Gets or sets the upper limit for pivot count.
	MixedIntegerBranchingStrategyPostFeasibility	Gets or sets the method that the solver uses after feasibility to select variables to branch on.
	MixedIntegerBranchingStrategyPreFeasibility	Gets or sets the method that the solver uses before feasibility to select variables to branch on.
	MixedIntegerGapTolerance	Gets or sets the tolerance to declare an integer solution optimal.
	MixedIntegerGenerateCuts	Gets or sets a value that specifies whether to generate cuts.
	MixedIntegerGomoryCutRoundLimit	Gets or sets the limit on generating cutting planes.
	MixedIntegerNodePresolve	Gets or sets a value that indicates whether to perform presolve during a search.
	MixedIntegerPresolve	Gets or sets a value that specifies whether to presolve a model.
	MixedIntegerSearchStrategy	Gets or sets the search strategy for finding an optimal integer solution.
	PresolveLevel	Gets or sets the level of presolve that the simplex solver applies.
	QueryAbort	Gets or sets the callback function that determines when to stop a computation.
	ShiftBounds	Gets or sets a value that specifies whether to shift variable bounds.
	Solving	Gets or sets the callback function that is called during the solve process.
	UseDouble	Gets or sets a value that indicates whether to use double arithmetic.
	UseExact	Gets or sets a value that specifies whether to use exact arithmetic.
	VariableFeasibilityTolerance	Gets or sets the numerical tolerance for variables.

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Methods

	Name	Description
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	NotifyEndFactorization	Defines the callback function called after matrix factorization.
	NotifyEndPivot	Defines the callback function called after the pivot.
	NotifyFindNext	Defines the callback function called when the simplex solver find the next pair of pivoting variables.
	NotifyStartFactorization	Defines the callback function called before matrix factorization.
	NotifyStartPivot	Defines the callback function called before the pivot.
	NotifyStartSolve	Defines the callback function called before a solver starts.
	ShouldAbort	Returns a value that indicates whether the solver should stop.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

The properties in the SimplexSolverParams object are examined once by the solver when the SimplexSolver::Solve(ISolverParameters) or SimplexSolver::Solve(array<SimplexSolverParams>) method is invoked. To adjust these properties during the solve process, stop the solver by using the Abort property, modify the properties, and then re-invoke the SimplexSolver::Solve(ISolverParameters) or SimplexSolver::Solve(array<SimplexSolverParams>) method.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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