What is the solution pool?

Defines the solution pool for storing multiple solutions of a MIP model.

The solution pool allows you to generate and store multiple solutions to a mixed integer programming (MIP) model. This feature uses an extension of the IBM ILOG CPLEX branch-and-cut algorithm to generate multiple solutions in addition to the optimal solution.

For example, some constraints may be difficult to formulate efficiently as linear expressions, or the objective may be difficult to quantify exactly. In such cases, obtaining multiple solutions will help you choose one which best fits all your criteria, including the criteria that could not be expressed easily in a conventional MIP model.

Furthermore, you can use the solution pool and tools associated with it to explore and evaluate alternative solutions in a variety of ways:


The solution pool distinguishes solutions by the values of their discrete variables only. For more explanation of this point, see Limitations due to continuous variables and finite precision