C Name

CPX_PARAM_SOLNPOOLREPLACE

C++ Name

SolnPoolReplace

Java Name

SolnPoolReplace

.NET Name

SolnPoolReplace

InteractiveOptimizer

mip pool replace

Identifier

2104

Description

Designates the strategy for replacing a solution in the solution pool when the solution pool has reached its capacity.

The value 0 (CPX_SOLNPOOL_FIFO) replaces solutions according to a first-in, first-out policy. The value 1 (CPX_SOLNPOOL_OBJ) keeps the solutions with the best objective values. The value 2 (CPX_SOLNPOOL_DIV) replaces solutions in order to build a set of diverse solutions.

If the solutions you obtain are too similar to each other, try setting SolnPoolReplace to 2.

The replacement strategy applies only to the subset of solutions created in the current call of MIP optimization or populate. Solutions already in the pool are not affected by the replacement strategy. They will not be replaced, even if they satisfy the criterion of the replacement strategy.

Values