Class HighsSolverConfiguration14x

Inheritance
System.Object
SolverConfiguration
HighsSolverConfiguration14x
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: OPTANO.Modeling.Optimization.Solver.Highs14x
Assembly: Optimization.Solver.Highs14x.dll
Syntax
public class HighsSolverConfiguration14x : SolverConfiguration

Properties

DualFeasibilityTolerance

"Dual feasibility tolerance type: double, advanced: false, range: [1e-10, inf], default: 1e-07

Declaration
[OptionName("dual_feasibility_tolerance")]
public double DualFeasibilityTolerance { get; set; }
Property Value
Type Description
System.Double

HighsAnalysisLevel

"Analysis level in HiGHS type: HighsInt, advanced: false, range: {0, 63}, default: 0

Declaration
[OptionName("highs_analysis_level")]
public int HighsAnalysisLevel { get; set; }
Property Value
Type Description
System.Int32

HighsDebugLevel

"Debugging level in HiGHS type: HighsInt, advanced: false, range: {0, 3}, default: 0

Declaration
[OptionName("highs_debug_level")]
public int HighsDebugLevel { get; set; }
Property Value
Type Description
System.Int32

InfiniteBound

"Limit on |constraint bound|: values larger than this will be treated as infinite type: double, advanced: false, range: [1e+15, inf], default: 1e+20

Declaration
[OptionName("infinite_bound")]
public double InfiniteBound { get; set; }
Property Value
Type Description
System.Double

InfiniteCost

"Limit on cost coefficient: values larger than this will be treated as infinite type: double, advanced: false, range: [1e+15, inf], default: 1e+20

Declaration
[OptionName("infinite_cost")]
public double InfiniteCost { get; set; }
Property Value
Type Description
System.Double

IpmIterationLimit

"Iteration limit for IPM solver type: HighsInt, advanced: false, range: {0, 2147483647}, default: 2147483647

Declaration
[OptionName("ipm_iteration_limit")]
public int IpmIterationLimit { get; set; }
Property Value
Type Description
System.Int32

IpmOptimalityTolerance

"IPM optimality tolerance type: double, advanced: false, range: [1e-12, inf], default: 1e-08

Declaration
[OptionName("ipm_optimality_tolerance")]
public double IpmOptimalityTolerance { get; set; }
Property Value
Type Description
System.Double

LargeMatrixValue

"Upper limit on |matrix entries|: values larger than this will be treated as infinite type: double, advanced: false, range: [1, inf], default: 1e+15

Declaration
[OptionName("large_matrix_value")]
public double LargeMatrixValue { get; set; }
Property Value
Type Description
System.Double

LogToConsole

"Enables or disables console logging type: bool, advanced: false, range: {false, true}, default: true

Declaration
[OptionName("log_to_console")]
public bool LogToConsole { get; set; }
Property Value
Type Description
System.Boolean

MipDetectSymmetry

"Whether symmetry should be detected type: bool, advanced: false, range: {false, true}, default: true

Declaration
[OptionName("mip_detect_symmetry")]
public bool MipDetectSymmetry { get; set; }
Property Value
Type Description
System.Boolean

MipFeasibilityTolerance

"MIP feasibility tolerance type: double, advanced: false, range: [1e-10, inf], default: 1e-06

Declaration
[OptionName("mip_feasibility_tolerance")]
public double MipFeasibilityTolerance { get; set; }
Property Value
Type Description
System.Double

MIPGap

Relative MIP optimality gap (MIP only). The MIP solver will terminate (with an optimal result) when the relative gap between the lower and upper objective bound is less than MIPGap.

Declaration
[OptionName("mip_rel_gap")]
public override double MIPGap { get; set; }
Property Value
Type Description
System.Double

Sets a relative tolerance on the gap between the best integer objective and the objective of the best node remaining. When the value

|bestnode-bestinteger|/(1e-10+|bestinteger|)

falls below the value of this parameter, the mixed integer optimization is stopped. For example, to instruct CPLEX to stop as soon as it has found a feasible integer solution proved to be within five percent of optimal, set the relative mipgap tolerance to 0.05.
Overrides

MIPGapAbs

Absolute MIP optimality gap (MIP only). The MIP solver will terminate (with an optimal result) when the absolute gap between the lower and upper objective bound is less than MIPGapAbs.

Declaration
[OptionName("mip_abs_gap")]
public override double MIPGapAbs { get; set; }
Property Value
Type Description
System.Double

The MIP gap abs.
Overrides

MipHeuristicEffort

"effort spent for MIP heuristics type: double, advanced: false, range: [0, 1], default: 0.05

Declaration
[OptionName("mip_heuristic_effort")]
public double MipHeuristicEffort { get; set; }
Property Value
Type Description
System.Double

MipLpAgeLimit

"maximal age of dynamic LP rows before they are removed from the LP relaxation type: HighsInt, advanced: false, range: {0, 32767}, default: 10

Declaration
[OptionName("mip_lp_age_limit")]
public int MipLpAgeLimit { get; set; }
Property Value
Type Description
System.Int32

MipMaxLeaves

"MIP solver max number of leave nodes type: HighsInt, advanced: false, range: {0, 2147483647}, default: 2147483647

Declaration
[OptionName("mip_max_leaves")]
public int MipMaxLeaves { get; set; }
Property Value
Type Description
System.Int32

MipMaxNodes

"MIP solver max number of nodes type: HighsInt, advanced: false, range: {0, 2147483647}, default: 2147483647

Declaration
[OptionName("mip_max_nodes")]
public int MipMaxNodes { get; set; }
Property Value
Type Description
System.Int32

MipMaxStallNodes

"MIP solver max number of nodes where estimate is above cutoff bound type: HighsInt, advanced: false, range: {0, 2147483647}, default: 2147483647

Declaration
[OptionName("mip_max_stall_nodes")]
public int MipMaxStallNodes { get; set; }
Property Value
Type Description
System.Int32

MipPoolAgeLimit

"maximal age of rows in the cutpool before they are deleted type: HighsInt, advanced: false, range: {0, 1000}, default: 30

Declaration
[OptionName("mip_pool_age_limit")]
public int MipPoolAgeLimit { get; set; }
Property Value
Type Description
System.Int32

MipPoolSoftLimit

"soft limit on the number of rows in the cutpool for dynamic age adjustment type: HighsInt, advanced: false, range: {1, 2147483647}, default: 10000

Declaration
[OptionName("mip_pool_soft_limit")]
public int MipPoolSoftLimit { get; set; }
Property Value
Type Description
System.Int32

MipPscostMinreliable

"minimal number of observations before pseudo costs are considered reliable type: HighsInt, advanced: false, range: {0, 2147483647}, default: 8

Declaration
[OptionName("mip_pscost_minreliable")]
public int MipPscostMinreliable { get; set; }
Property Value
Type Description
System.Int32

MipReportLevel

"MIP solver reporting level type: HighsInt, advanced: false, range: {0, 2}, default: 1

Declaration
[OptionName("mip_report_level")]
public int MipReportLevel { get; set; }
Property Value
Type Description
System.Int32

ObjectiveBound

"Objective bound for termination type: double, advanced: false, range: [-inf, inf], default: inf

Declaration
[OptionName("objective_bound")]
public double ObjectiveBound { get; set; }
Property Value
Type Description
System.Double

ObjectiveTarget

"Objective target for termination type: double, advanced: false, range: [-inf, inf], default: -inf

Declaration
[OptionName("objective_target")]
public double ObjectiveTarget { get; set; }
Property Value
Type Description
System.Double

OutputFlag

"Enables or disables solver output type: bool, advanced: false, range: {false, true}, default: true

Declaration
[OptionName("output_flag")]
public bool OutputFlag { get; set; }
Property Value
Type Description
System.Boolean

Parallel

"Parallel option: "off", "choose" or "on" type: string, advanced: false, default: "choose"

Declaration
[OptionName("parallel")]
public string Parallel { get; set; }
Property Value
Type Description
System.String

Presolve

"Presolve option: "off", "choose" or "on" type: string, advanced: false, default: "choose"

Declaration
[OptionName("presolve")]
public string Presolve { get; set; }
Property Value
Type Description
System.String

PrimalFeasibilityTolerance

"Primal feasibility tolerance type: double, advanced: false, range: [1e-10, inf], default: 1e-07

Declaration
[OptionName("primal_feasibility_tolerance")]
public double PrimalFeasibilityTolerance { get; set; }
Property Value
Type Description
System.Double

RandomSeed

"random seed used in HiGHS type: HighsInt, advanced: false, range: {0, 2147483647}, default: 0

Declaration
[OptionName("random_seed")]
public int RandomSeed { get; set; }
Property Value
Type Description
System.Int32

Ranging

"Compute cost, bound, RHS and basic solution ranging: "off" or "on" type: string, advanced: false, default: "off"

Declaration
[OptionName("ranging")]
public string Ranging { get; set; }
Property Value
Type Description
System.String

SimplexCrashStrategy

"Strategy for simplex crash: off / LTSSF / Bixby (0/1/2) type: HighsInt, advanced: false, range: {0, 9}, default: 0

Declaration
[OptionName("simplex_crash_strategy")]
public int SimplexCrashStrategy { get; set; }
Property Value
Type Description
System.Int32

SimplexDualEdgeWeightStrategy

"Strategy for simplex dual edge weights: Choose / Dantzig / Devex / Steepest Edge (-1/0/1/2) type: HighsInt, advanced: false, range: {-1, 3}, default: -1

Declaration
[OptionName("simplex_dual_edge_weight_strategy")]
public int SimplexDualEdgeWeightStrategy { get; set; }
Property Value
Type Description
System.Int32

SimplexIterationLimit

"Iteration limit for simplex solver type: HighsInt, advanced: false, range: {0, 2147483647}, default: 2147483647

Declaration
[OptionName("simplex_iteration_limit")]
public int SimplexIterationLimit { get; set; }
Property Value
Type Description
System.Int32

SimplexMaxConcurrency

"Maximum level of concurrency in parallel simplex type: HighsInt, advanced: false, range: {1, 8}, default: 8

Declaration
[OptionName("simplex_max_concurrency")]
public int SimplexMaxConcurrency { get; set; }
Property Value
Type Description
System.Int32

SimplexMinConcurrency

"Minimum level of concurrency in parallel simplex type: HighsInt, advanced: false, range: {1, 8}, default: 1

Declaration
[OptionName("simplex_min_concurrency")]
public int SimplexMinConcurrency { get; set; }
Property Value
Type Description
System.Int32

SimplexPrimalEdgeWeightStrategy

"Strategy for simplex primal edge weights: Choose / Dantzig / Devex (-1/0/1) type: HighsInt, advanced: false, range: {-1, 1}, default: -1

Declaration
[OptionName("simplex_primal_edge_weight_strategy")]
public int SimplexPrimalEdgeWeightStrategy { get; set; }
Property Value
Type Description
System.Int32

SimplexScaleStrategy

"Simplex scaling strategy: off / choose / equilibration / forced equilibration / max value 0 / max value 1 (0/1/2/3/4/5) type: HighsInt, advanced: false, range: {0, 5}, default: 1

Declaration
[OptionName("simplex_scale_strategy")]
public int SimplexScaleStrategy { get; set; }
Property Value
Type Description
System.Int32

SimplexStrategy

"Strategy for simplex solver type: HighsInt, advanced: false, range: {0, 4}, default: 1

Declaration
[OptionName("simplex_strategy")]
public int SimplexStrategy { get; set; }
Property Value
Type Description
System.Int32

SimplexUpdateLimit

"Limit on the number of simplex UPDATE operations type: HighsInt, advanced: false, range: {0, 2147483647}, default: 5000

Declaration
[OptionName("simplex_update_limit")]
public int SimplexUpdateLimit { get; set; }
Property Value
Type Description
System.Int32

SmallMatrixValue

"Lower limit on |matrix entries|: values smaller than this will be treated as zero type: double, advanced: false, range: [1e-12, inf], default: 1e-09

Declaration
[OptionName("small_matrix_value")]
public double SmallMatrixValue { get; set; }
Property Value
Type Description
System.Double

SolutionFile

"Solution file type: string, advanced: false, default: ""

Declaration
[OptionName("solution_file")]
public string SolutionFile { get; set; }
Property Value
Type Description
System.String

Solver

"Solver option: "simplex", "choose" or "ipm" type: string, advanced: false, default: "choose"

Declaration
[OptionName("solver")]
public string Solver { get; set; }
Property Value
Type Description
System.String

Threads

"number of threads used by HiGHS (0: automatic) type: HighsInt, advanced: false, range: {0, 2147483647}, default: 0

Declaration
[OptionName("threads")]
public int Threads { get; set; }
Property Value
Type Description
System.Int32

WriteSolutionStyle

"Write the solution in style: 0=>Raw (computer-readable); 1=>Pretty (human-readable) type: HighsInt, advanced: false, range: {0, 1}, default: 0

Declaration
[OptionName("write_solution_style")]
public int WriteSolutionStyle { get; set; }
Property Value
Type Description
System.Int32

WriteSolutionToFile

"Write the primal and dual solution to a file type: bool, advanced: false, range: {false, true}, default: false

Declaration
[OptionName("write_solution_to_file")]
public bool WriteSolutionToFile { get; set; }
Property Value
Type Description
System.Boolean

Methods

GetHighsBoolOptions()

Declaration
public IEnumerable<HighsOption<int>> GetHighsBoolOptions()
Returns
Type Description
System.Collections.Generic.IEnumerable<HighsOption<System.Int32>>

GetHighsDoubleOptions()

Declaration
public IEnumerable<HighsOption<double>> GetHighsDoubleOptions()
Returns
Type Description
System.Collections.Generic.IEnumerable<HighsOption<System.Double>>

GetHighsIntOptions()

Declaration
public IEnumerable<HighsOption<int>> GetHighsIntOptions()
Returns
Type Description
System.Collections.Generic.IEnumerable<HighsOption<System.Int32>>

GetHighsStringOptions()

Declaration
public IEnumerable<HighsOption<string>> GetHighsStringOptions()
Returns
Type Description
System.Collections.Generic.IEnumerable<HighsOption<System.String>>

Extension Methods