SimplexSolver Class
Solver Foundation 3.0
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Defines a branch-and-bound search for optimizing mixed integer problems.
System.Object
Microsoft.SolverFoundation.Services.RowVariableModel
Microsoft.SolverFoundation.Services.LinearModel
Microsoft.SolverFoundation.Solvers.SimplexSolver
Microsoft.SolverFoundation.Services.RowVariableModel
Microsoft.SolverFoundation.Services.LinearModel
Microsoft.SolverFoundation.Solvers.SimplexSolver
Namespace: Microsoft.SolverFoundation.Solvers
Assembly: Microsoft.Solver.Foundation (in Microsoft.Solver.Foundation.dll)
The SimplexSolver type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | SimplexSolver | Initializes a new instance of the SimplexSolver class. |
![]() | SimplexSolver(IEqualityComparer(Of Object)) | Initializes a new instance of the SimplexSolver class using the specified comparer. |
![]() | SimplexSolver(ISolverEnvironment) | Initializes a new instance of the SimplexSolver class. |
| Name | Description | |
|---|---|---|
![]() | AlgorithmUsed | Gets the type of algorithm that is used by a solver. |
![]() | BranchCount | Gets the number of branches performed when the branch-and-bound algorithm is applied to a mixed integer linear problem. |
![]() | CoefficientCount | Gets the number of non-zero coefficients in a linear model. (Inherited from LinearModel.) |
![]() | CostingUsedDouble | Gets the costing used for double arithmetic. |
![]() | CostingUsedExact | Gets the costing used for exact arithmetic. |
![]() | FactorCount | Gets the number of basis matrix LU factorizations performed during a solve attempt. |
![]() | FactorCountDouble | Gets the number of basis matrix LU factorizations performed for double arithmetic. |
![]() | FactorCountExact | Gets the number of basis matrix LU factorizations performed for exact arithmetic. |
![]() | Gap | Gets the difference between an integer solution and a relaxed solution. |
![]() | GoalCount | Gets the number of goals in a linear model. (Inherited from LinearModel.) |
![]() | Goals | Gets the goal collection of a linear model. (Inherited from LinearModel.) |
![]() | Indices | Gets the collection of row and variable indexes for a model. (Inherited from RowVariableModel.) |
![]() | InnerIndexCount | Gets the number of user and row variables used internally when a linear model is being solved. |
![]() | InnerIntegerIndexCount | Gets the number of integer user and row variables used internally when a linear model is being solved. |
![]() | InnerRowCount | Gets the number of rows used internally when a linear model is being solved. |
![]() | InnerSlackCount | Gets the number of row variables used internally when a linear model is being solved. |
![]() | IntegerIndexCount | Gets the number of integer variables in a model. (Inherited from RowVariableModel.) |
![]() | IsMipModel | Gets a value that indicates whether a model is a mixed integer programming (MIP) model. (Inherited from RowVariableModel.) |
![]() | IsQuadraticModel | Gets a value that indicates whether a model has a quadratic term on the objective function. (Inherited from LinearModel.) |
![]() | IsSpecialOrderedSet | Gets a value that indicates whether a linear model is a special ordered set. (Inherited from LinearModel.) |
![]() | KeyComparer | Gets the object that is used to compare keys for rows or variables. (Inherited from RowVariableModel.) |
![]() | KeyCount | Gets the number of keys that are in a model. (Inherited from RowVariableModel.) |
![]() | Keys | Gets the variable key and row key collection. (Inherited from RowVariableModel.) |
![]() | LpResult | Gets the result of solving a linear programming (LP) relaxation. |
![]() | MipBestBound | Gets the best result from the mixed integer programming solver (MIP) solver. |
![]() | MipResult | Gets a result of solving a model after considering integrality conditions. |
![]() | PivotCount | Gets the number of simplex pivots performed during a solve attempt. |
![]() | PivotCountDegenerate | Gets the number of degenerated pivots performed during a solve attempt. |
![]() | PivotCountDouble | Gets the number of pivots performed for double arithmetic. |
![]() | PivotCountDoublePhaseOne | Gets the number of phase one pivots performed for double arithmetic. |
![]() | PivotCountDoublePhaseTwo | Gets the number of phase two pivots performed for double arithmetic. |
![]() | PivotCountExact | Gets the number of pivots performed for exact arithmetic. |
![]() | PivotCountExactPhaseOne | Gets the number of phase one pivots performed for exact arithmetic. |
![]() | PivotCountExactPhaseTwo | Gets the number of phase two pivots performed for exact arithmetic. |
![]() | Result | Gets the result of a solve attempt. |
![]() | RowCount | Gets the number of rows in a model. (Inherited from RowVariableModel.) |
![]() | RowIndices | Gets the collection of row indexes of a linear model. (Inherited from LinearModel.) |
![]() | RowKeys | Gets the collection of row keys. (Inherited from RowVariableModel.) |
![]() | SolutionQuality | Gets the quality level of a solution. |
![]() | SolvedGoalCount | Gets the number of goals being solved. |
![]() | UseDouble | Gets a value that indicates whether a solve attempt is instructed to use double arithmetic. |
![]() | UseExact | Gets a value that indicates whether a solve attempt is instructed to use exact arithmetic. |
![]() | VariableCount | Gets the number of variables in a model. (Inherited from RowVariableModel.) |
![]() | VariableIndices | Gets the collection of variable indexes. (Inherited from RowVariableModel.) |
![]() | VariableKeys | Gets the collection of variable keys. (Inherited from RowVariableModel.) |
| Name | Description | |
|---|---|---|
![]() | AddGoal | Creates an ILinearGoal object and adds it to the goal list in a model. (Inherited from LinearModel.) |
![]() | AddListener | Adds a tracing listener for solve attempts.. |
![]() | AddRow(Object, Int32) | Adds a row to a linear model. (Inherited from LinearModel.) |
![]() | AddRow(Object, SpecialOrderedSetType, Int32) | Adds a reference row for a special ordered set to a linear model. (Inherited from LinearModel.) |
![]() | AddVariable | Adds a user variable to a model. (Inherited from RowVariableModel.) |
![]() | ClearGoals | Clears all the goals in a linear model. (Inherited from LinearModel.) |
![]() | 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.) |
![]() | GetBasic | Returns a value that indicates whether a variable is a basic variable. (Inherited from LinearModel.) |
![]() | GetBounds | Returns the bounds for a variable. (Inherited from RowVariableModel.) |
![]() | GetCoefficient(Int32, Int32) | Returns the coefficient of the A matrix in a linear model. (Inherited from LinearModel.) |
![]() | GetCoefficient(Int32, Int32, Int32) | Returns the coefficient of the Q matrix on the objective row. (Inherited from LinearModel.) |
![]() | GetGoalFromIndex | Returns a goal entry if the row index is associated with a goal. (Inherited from LinearModel.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetIgnoreBounds | Returns a value that indicates whether the bounds of a variable are ignored. (Inherited from RowVariableModel.) |
![]() | GetIndexFromKey | Returns the index that is associated with a specified key. (Inherited from RowVariableModel.) |
![]() | GetIntegrality | Returns a value that indicates whether a variable is an integer variable. (Inherited from RowVariableModel.) |
![]() | GetKeyFromIndex | Returns the key that is associated with the specified variable index. (Inherited from RowVariableModel.) |
![]() | GetProperty | Returns the value of a specified property. (Overrides RowVariableModel.GetProperty(String, Int32).) |
![]() | GetReport(LinearSolverReportType) | Gets a sensitivity report associated with a solve attempt. |
![]() | GetReport(SolverContext, Solution, SolutionMapping) | Gets a report associated with a solve attempt. |
![]() | GetRowEntries | Returns the collection of non-zero variable entries. (Inherited from LinearModel.) |
![]() | GetRowEntryCount | Returns the number of non-zero coefficients for the given row index. (Inherited from LinearModel.) |
![]() | GetRowQuadraticEntries | Returns a collection of non-zero variable entries on a quadratic row. (Inherited from LinearModel.) |
![]() | GetSolutionValue | Returns the objective value of a goal. |
![]() | GetSolvedGoal | Returns the information that is associated with a solved goal. |
![]() | GetSpecialOrderedSetTypeRowIndexes | Returns a list of rows for a special ordered set. (Inherited from LinearModel.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | GetValue | Returns the value that is associated with the specified variable index. (Inherited from RowVariableModel.) |
![]() | GetValueState | Returns the value state for a variable. (Inherited from LinearModel.) |
![]() | GetVariableEntries | Returns a collection of non-zero column entries. (Inherited from LinearModel.) |
![]() | GetVariableEntryCount | Returns the number of non-zero coefficients for a given column variable index. (Inherited from LinearModel.) |
![]() | InitModel | Allocates data structures for a new model. (Overrides LinearModel.InitModel(IEqualityComparer(Of Object), Int32, Int32, Int32).) |
![]() | IsGoal(Int32) | Returns a value that indicates whether a row identifier is a goal row. (Inherited from LinearModel.) |
![]() | IsGoal(Int32, ILinearGoal) | Returns a value that indicates whether a row identifier is a goal row. (Inherited from LinearModel.) |
![]() | IsQuadraticVariable | Returns a value that indicates whether a variable is in any quadratic row. (Inherited from LinearModel.) |
![]() | IsRow | Returns a value that indicates whether a variable index corresponds to a row. (Inherited from RowVariableModel.) |
![]() | LoadLinearModel | Loads the information from one linear model into another model. (Inherited from LinearModel.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | Preallocate | Allocates data structures for a new linear model. (Inherited from LinearModel.) |
![]() | RemoveGoal | Removes a goal row. (Inherited from LinearModel.) |
![]() | RemoveListener | Removes a tracing listener. |
![]() | SetBasic | Sets the basic status for a variable. (Inherited from LinearModel.) |
![]() | SetBounds | Sets the bounds for a row. (Inherited from RowVariableModel.) |
![]() | SetCoefficient(Int32, Int32, Rational) | Sets the coefficient of the A matrix in a linear model. (Inherited from LinearModel.) |
![]() | SetCoefficient(Int32, Rational, Int32, Int32) | Sets the coefficient of the Q matrix on the objective row. (Inherited from LinearModel.) |
![]() | SetIgnoreBounds | Specifies whether the bounds of a variable should be respected or ignored during a solve attempt. (Inherited from RowVariableModel.) |
![]() | SetIntegrality | Specifies whether a variable is an integer variable. (Inherited from RowVariableModel.) |
![]() | SetLowerBound | Sets the lower bound of a variable. (Inherited from RowVariableModel.) |
![]() | SetProperty | Sets the value of a property. (Overrides RowVariableModel.SetProperty(String, Int32, Object).) |
![]() | SetUpperBound | Sets the upper bound of a variable. (Inherited from RowVariableModel.) |
![]() | SetValue | Sets the value for the specified variable index. (Inherited from RowVariableModel.) |
![]() | Shutdown | Stops a solver instance. |
![]() | Solve(ISolverParameters) | Runs a solver using the specified solver parameters. |
![]() | Solve(SimplexSolverParams()) | Runs a solver using one thread for each SimplexSolverParams object. |
![]() | SolveRelaxation | Solves a relaxation problem. |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
![]() | TryGetIndexFromKey | Attempts to return the variable index that is associated with the specified key. (Inherited from RowVariableModel.) |
| Name | Description | |
|---|---|---|
![]() | m_cvidBasic | Represents the number of variables that are marked as basic. (Inherited from LinearModel.) |
![]() | m_cvidInt | Represents the number of integer variables. (Inherited from RowVariableModel.) |
![]() | m_mpkeyvid | Represents the mapping from key to variable index. (Inherited from RowVariableModel.) |
![]() | m_qpRowVar | The goal variable that has the QP form. (Inherited from LinearModel.) |
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