Enum HeuristicSearchTreeSelections

Enum for selecting which local search heuristics to apply on the root node of a global solve. Use HeuristicSearchRootSelections to control local search heuristics on the root node Default: SmallNeighborhoodContinuous (= 1).

The local search heuristics will benefit from having an existing incumbent solution, but it is not required. An initial solution can also be provided by the user through either XPRSloadmipsol or XPRSreadbinsol. Refers to: http://www.maths.ed.ac.uk/hall/Xpress/FICO_Docs/optimizer/HTML/HEURSEARCHTREESELECT.html

[Flags]
public enum HeuristicSearchTreeSelections

Name	Description
All	Enable all strategies. Not recommended.
CombinedNeighborhoodInteger	Local search with a neighborhood set up through the combination of multiple integer solutions.
LargeNeighborhood	Local search with a large neighborhood. Potentially slow but is good for finding solutions that differs significantly from the incumbent.
None	Disable heuristic.
SearchUserAddedSolutions	Local search on solutions added by XPRSaddmipsol. If this bit is disabled, a partial or an infeasible solution loaded with XPRSaddmipsol will be rejected without a search being performed.
SmallNeighborhoodContinuous	Local search with a small neighborhood centered around a node LP solution.
SmallNeighborhoodInteger	Local search with a small neighborhood centered around an integer solution. This heuristic will often provide smaller, incremental improvements to an incumbent solution.