Hi,

I am working on an IP using Cplex coupled with Concert Technology C++.
I know that the new generic callback feature allows to do some of the cool stuff that could be done within legacy control callbacks such as adding cuts or rejecting candidate solutions. I want to fix some variables based on some partial solution (a solution where some variables have already been fixed to integer values and the remaining are still fractional).

I know this can be done using the traditional legacy branchCallback, but is this possible with the new generic callbacks?


Thanks in advance.

Rafael Colares

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Rafael Colares
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#DecisionOptimization

Yes, this is possible using the CPX_CALLBACKCONTEXT_BRANCHING context, see also here.

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Daniel Junglas
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