type of cut limit

Purpose

Type of cut limit

Description

This parameter allows you to set a uniform limit on the number of cuts of each type that CPLEX generates at every cut pass. That is, every time CPLEX attempts to generate new cuts, the number of generated cuts of each type will not exceed such a limit.

By default, the limit is the largest integer supported by a given platform; that is, there is no effective limit by default.

Tighter limits on the number of cuts of each type may benefit certain models. For example, a limit on each type of cut will prevent any one type of cut from being created in such large number that the limit on the total number of all types of cuts is reached before other types of cuts have an opportunity to be created.

A setting of 0 (zero) means no cuts.

This parameter does not influence the number of Gomory cuts. For means to control the number of Gomory cuts, see also the fractional cut parameters:

• candidate limit for generating Gomory fractional cuts: CPX_PARAM_FRACCAND, FracCand;

• MIP Gomory fractional cuts switch: CPX_PARAM_FRACCUTS, FracCuts;

• pass limit for generating Gomory fractional cuts: CPX_PARAM_FRACPASS, FracPass.