Use this parameter to control the nodes in the solution tree where the branch-and-bound solver adds constraint cuts in linear integer models. You have the following three options:

Under the Root Only option, the solver appends cuts only at the first node, or root node, in the solution tree. With the All Nodes option, cuts are appended at each node of the tree. Under the Solver Decides option, the solver dynamically decides when it is best to append cuts at a node.

The default is to let the solver decide when to append cuts. In general, this will offer superior performance. There may be instances, however, where one of the other two options prevails.