MIP Update

Type

Selection

Range

The settings listed below

Default

Yes

When solving an updated version of an already loaded model, CPLEX retrieves these updates from AIMMS, modifies the model and solves the model using the results of the previous solve. This means that the basis present in CPLEX is used. Although such a basis can provide a good starting point, it does not always have to be in case of an updated MIP model. It may even be better to reload the updated model with the option MIP Basis “Off” in order to gain performance enhancements as a result of presolving and crashing the updated MIP model. If you want to solve each MIP afresh turn both this and the option MIP Basis “Off”. Possible values are:

  • No (do not reload the updated model)

  • Yes (reload the updated model)

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