Limit on the number of solutions kept in the solution pool

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Limit on the number of solutions kept in the solution pool

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C Name

CPX_PARAM_SOLNPOOLCAPACITY

C++ Name

SolnPoolCapacity

Java Name

SolnPoolCapacity

.NET Name

SolnPoolCapacity

InteractiveOptimizer

mip pool capacity

Identifier

2103

Description

Limits the number of solutions kept in the solution pool. At most, SolnPoolCapacity solutions will be stored in the pool. Superfluous solutions are managed according to the replacement strategy set by the solution pool replacement parameter (SolnPoolReplace, CPX_PARAM_SOLNPOOLREPLACE).

The optimization (whether by MIP optimization or the populate procedure) will not stop if more than SolnPoolCapacity solutions are generated. Instead, stopping criteria can be specified by these parameters:

The default value for SolnPoolCapacity is 2100000000, but it may be set to any nonnegative integer value. If set to zero, it will turn off all features related to the solution pool.

If you are looking for a parameter to control the number of solutions generated by the populate procedure, consider the parameter PopulateLim, CPX_PARAM_POPULATELIM.

Values

Any nonnegative integer; 0 (zero) turns off all features of the solution pool; default: 2100000000.

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