Originally posted by: Khronum

I was wondering if there is a way to disable the CPLEX aggregator and/or the pre-solver for a discrete optimization problem (binary linear programming)

On one hand, I am interested in learning to do this to learn more about the solver, on the other, I am having problems with the model the CPLEX's pre-solver re-defines (see this other question).

Thanks
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Originally posted by: SystemAdmin

You can disable presolving with the CPX_PARAM_PREIND parameter (please check the manual to find the corresponding Matlab parameter).
This also disables the aggregator, which is part of the presolver.

You can disable the aggregator alone (without disabling the rest of presolve) with the CPX_PARAM_AGGIND parameter.

Tobias
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#DecisionOptimization

Originally posted by: Khronum

Fantastic. Sorry for missing that and thanks!
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