preprocessing aggregator application limit

Invokes the aggregator to use substitution where possible to reduce the number of rows and columns before the problem is solved.

Purpose

Preprocessing aggregator application limit

API Parameter Name Name prior to V12.6.0
C CPXPARAM_Preprocessing_Aggregator CPX_PARAM_AGGIND (int)
C++ IloCplex::Param::Preprocessing::Aggregator AggInd (int)
OPL aggind
Interactive preprocessing aggregator preprocessing aggregator
Identifier 1003 1003

Description

Invokes the aggregator to use substitution where possible to reduce the number of rows and columns before the problem is solved. If set to a positive value, the aggregator is applied the specified number of times or until no more reductions are possible.

Table 1. Values
Value Meaning
-1 Automatic (1 for LP, infinite for MIP) default
0 Do not use any aggregator
Any positive integer Number of times to apply aggregator