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Enums.h
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/**
The Supporting Hyperplane Optimization Toolkit (SHOT).
@author Andreas Lundell, Åbo Akademi University
@section LICENSE
This software is licensed under the Eclipse Public License 2.0.
Please see the README and LICENSE files for more information.
*/
#pragma once
namespace SHOT
{
enum class E_AuxiliaryVariableType
{
None,
NonlinearObjectiveFunction, // From epigraph formulation of (nonlinear) objective function
NonlinearExpressionPartitioning, // From reformulating nonlinear terms as constraints
MonomialTermsPartitioning, // From reformulating monomial terms as constraints
SignomialTermsPartitioning, // From reformulating signomial terms as constraints
SquareTermsPartitioning, // From reformulating sums of square terms
ContinuousBilinear, // From linearizing a bilinear term x1 * x2 where x1 and x2 are real
BinaryBilinear, // From linearizing a bilinear term b1 * b2 where b1 and b2 are binary
BinaryContinuousBilinear, // From linearizing a bilinear term b1 * x2 where b1 is binary and x2 is continuous
IntegerBilinear, // From linearizing a bilinear term i1 * x2, where i1 is integer and x2 is continuous or discrete
BinaryMonomial, // Fram linearizing a monomial term b1 * b2 * ... * bn, where bi are binary
AbsoluteValue, // From rewriting an absolute value
AntiEpigraph, // For rewriting an epigraph formulation as objective
EigenvalueDecomposition // From performing an eigenvalue decomposition on quadratic sums
};
enum class E_Convexity
{
Linear,
Convex,
Concave,
Nonconvex,
Unknown,
NotSet
};
enum class E_DualSolutionSource
{
LPSolution,
MIPSolutionOptimal,
ObjectiveConstraint,
MIPSolverBound
};
enum class E_EventType
{
NewPrimalSolution,
UserTerminationCheck
};
enum class E_HyperplaneSource
{
None,
MIPOptimalRootsearch,
MIPSolutionPoolRootsearch,
LPRelaxedRootsearch,
MIPOptimalSolutionPoint,
MIPSolutionPoolSolutionPoint,
LPRelaxedSolutionPoint,
LPFixedIntegers,
PrimalSolutionSearch,
PrimalSolutionSearchInteriorObjective,
InteriorPointSearch,
MIPCallbackRelaxed,
ObjectiveRootsearch,
ObjectiveCuttingPlane
};
enum class E_IntegerCutSource
{
None,
NLPFixedInteger
};
enum class E_IterationLineType
{
DualSolution,
DualCallback,
DualIntegerFixed,
DualRepair,
DualReductionCut,
PrimalNLP
};
enum class E_DualProblemClass
{
LP,
QP,
QCQP,
MIP,
MIQP,
MIQCQP
};
enum class E_LogLevel
{
Off = 6,
Critical = 5,
Error = 4,
Warning = 3,
Info = 2,
Debug = 1,
Trace = 0
};
enum class E_ModelReturnStatus
{
None,
OptimalGlobal,
// OptimalLocal,
Unbounded,
UnboundedNoSolution,
InfeasibleGlobal,
InfeasibleLocal,
FeasibleSolution,
NoSolutionReturned,
ErrorUnknown,
ErrorNoSolution
};
enum class E_Monotonicity
{
NotSet,
Unknown,
Nondecreasing,
Nonincreasing,
Constant
};
enum class E_PrimalNLPSource
{
FirstSolution,
FeasibleSolution,
InfeasibleSolution,
SmallestDeviationSolution,
FirstSolutionNewDualBound
};
enum class E_PrimalSolutionSource
{
Rootsearch,
RootsearchFixedIntegers,
NLPFixedIntegers,
NLPRelaxed,
MIPSolutionPool,
LPFixedIntegers,
MIPCallback,
InteriorPointSearch
};
enum class E_ProblemConvexity
{
NotSet,
Convex,
Nonconvex
};
enum class E_NLPSolutionStatus
{
Feasible,
Optimal,
Infeasible,
Unbounded,
IterationLimit,
TimeLimit,
Error
};
enum class E_ObjectiveFunctionType
{
Linear,
Quadratic,
Nonlinear,
QuadraticConsideredAsNonlinear,
None
};
enum class E_ProblemSolutionStatus
{
Feasible,
Optimal,
Infeasible,
Unbounded,
IterationLimit,
TimeLimit,
SolutionLimit,
Error,
Numeric,
CutOff,
NodeLimit,
Abort,
None
};
enum class E_ProblemType
{
LP,
QP,
NLP,
QCQP,
MILP,
MIQP,
MIQCQP,
MINLP,
None
};
enum E_SettingType
{
String,
Integer,
Double,
Enum,
Boolean
};
enum class E_SolutionStrategy
{
SingleTree,
MultiTree,
NLP,
MIQP,
MIQCQP,
None
};
enum class E_SOSType
{
One,
Two
};
enum class E_TerminationReason
{
ConstraintTolerance,
ObjectiveStagnation,
IterationLimit,
TimeLimit,
InfeasibleProblem,
UnboundedProblem,
Error,
AbsoluteGap,
RelativeGap,
NumericIssues,
UserAbort,
NoDualCutsAdded,
None
};
enum class E_VariableType
{
None,
Real,
Binary,
Integer,
Semicontinuous,
Semiinteger
};
enum class ES_AddPrimalPointAsInteriorPoint
{
KeepOriginal,
KeepBoth,
KeepNew,
OnlyAverage
};
enum class ES_EigenValueDecompositionFormulation
{
CoefficientReformulated,
CoefficientRemains
};
enum class ES_HyperplaneCutStrategy
{
ESH,
ECP
};
enum class ES_IpoptSolver
{
IpoptDefault,
ma27,
ma57,
ma86,
ma97,
mumps
};
enum class ES_IterationOutputDetail
{
Full,
ObjectiveGapUpdates,
ObjectiveGapUpdatesAndNLPCalls
};
enum class ES_ObjectiveRootsearch
{
Always,
IfConvex,
Never
};
enum class ES_RootsearchConstraintStrategy
{
AllAsMaxFunct,
IndividualConstraints
};
enum class ES_RootsearchMethod
{
BoostTOMS748,
BoostBisection
};
enum class ES_MIPSolver
{
Cplex,
Gurobi,
Cbc,
None
};
enum class ES_MIPPresolveStrategy
{
Never,
Once,
EveryIteration
};
enum class ES_OutputDirectory
{
Problem,
Program
};
enum class ES_PrimalNLPFixedPoint
{
AllSolutions,
FirstSolution,
AllFeasibleSolutions,
FirstAndFeasibleSolutions,
SmallestDeviationSolution
};
enum class ES_PrimalNLPProblemSource
{
OriginalProblem,
ReformulatedProblem,
Both
};
enum class ES_PrimalNLPSolver
{
Ipopt,
GAMS,
SHOT,
None
};
enum class ES_PrimalNLPStrategy
{
AlwaysUse,
IterationOrTime,
IterationOrTimeAndAllFeasibleSolutions
};
enum class ES_ReformulationBinaryMonomials
{
None,
Simple,
CostaLiberti
};
enum class ES_ReformulateBilinearInteger
{
No,
NoIfQuadraticSupport,
Yes
};
enum class ES_PartitionNonlinearSums
{
Always,
IfConvex,
Never
};
enum class ES_QuadraticProblemStrategy
{
Nonlinear,
QuadraticObjective,
ConvexQuadraticallyConstrained,
NonconvexQuadraticallyConstrained
};
enum class ES_QuadraticTermsExtractStrategy
{
DoNotExtract,
ExtractTermsToSame, // Extract terms at first level of nonlinear expression (at model read) to the same objective or
// constraint
ExtractToEqualityConstraintIfNonconvex, // Extract terms at all levels (at reformulation step) to a new equality
// expression
ExtractToEqualityConstraintAlways // Extract terms at all levels (at reformulation step) to a new equality
// expression
};
enum class ES_SourceFormat
{
OSiL,
GAMS,
NL,
None
};
enum class ES_TreeStrategy
{
MultiTree,
SingleTree
};
} // namespace SHOT