Initializing help system before first use

# MIPFRACREDUCE

Description | Branch and Bound: Specifies how often the Optimizer should run a heuristic to reduce the number of fractional integer variables in the node LP solutions.
Type | Integer
Topic areas | Branch and Bound Search, Root
Values |
-1 | Automatic.
0 | Disabled.
1 | Run before and after cutting on the root node.
2 | Run also during root cutting.
3 | Run also during the tree search.
Default value | -1
Note | 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.
Affects routines | XPRSmipoptimize ( MIPOPTIMIZE).
Category | Control

Parent Topic Control Parameters

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