MIP Heuristic Large Neighborhood Search
- Type
Bit Selection
- Range
{-1..3}
- Default
-1
This option specifies whether or not to enable the MIP large neighborhood search heuristics. Possible values are:
-1 (auto): Let Knitro determine automatically from MIP Heuristic Strategy
0 (disable): Disable all large neighborhood search heuristics
1 (bit 0): Enable relaxation enforced neighborhood search (RENS) heuristic
2 (bit 1): Enable relaxation induced neighborhood search (RINS) heuristic
Knitro considers the bit values of this parameter. For example, if this parameter is set to 3, bit 0 and bit 1 are equal to 1 and, as a result, both RENS and RINS heuristics are enabled. If this parameter is set to 2, only RINS heuristic is enabled.
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