IBM ILOG Solver User's Manual > More on Solving > Setting Filter Levels: Coloring Graphs > Suggested answers > Exercise 2

What is the difference between the filter levels IloExtendedLevel, IloMediumLevel, and IloBasicLevel?

Suggested Answer

In general, the filter level IloExtendedLevel is the most thorough, but takes the longest. The filter level IloBasicLevel is less thorough, but faster. IloMediumLevel is a compromise between the two levels--faster than IloExtendedLevel and more thorough than IloBasicLevel. However, these are general rules and are not true for every situation.