Heuristics
ILOG CPLEX provides a heuristic to find integer solutions at nodes during the branch & cut procedure.
This feature is controlled by the parameter HeurFreq
. At its default value of 0
, ILOG CPLEX dynamically determines the frequency with which the heuristic is invoked. The value of -1
turns the feature off. A positive value specifies the frequency (in node count) with which the heuristic will be called. For example, if the HeurFreq
parameter is set to 20
, then the node heuristic will be applied at node 0
, node 20
, node 40
, and so on.