Enum MipFractionReduce

Specifies how often the optimizer should run a heuristic to reduce the number of fractional integer variables in the node LP solutions.

This heuristic is only applicable to problems that are dual degenerate. These are problems that contain multiple solutions with identical objective function value. The more dual degenerate a problem is, the more likely it will be for this heuristic to have an improving effect. Refers to: http://www.maths.ed.ac.uk/hall/Xpress/FICO_Docs/optimizer/HTML/MIPFRACREDUCE.html

Namespace: OPTANO.Modeling.Optimization.Solver.FicoXpress843.ConfigurationEnums
Assembly: Optimization.Solver.FicoXpress843.dll
Syntax
public enum MipFractionReduce

Fields

Name Description
Automatic

Automatic selection.
BeforeAndAfterRootCut

Run before and after cutting on the root node.
Disabled

Disable heuristic.
DuringRootCut

Run also during root cutting. Implies BeforeAndAfterRootCut.
DuringTreeSearch

Run also during the tree search. Implies BeforeAndAfterRootCut & DuringRootCut.

Extension Methods