Decision Optimization

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why only one cut can be added by cut callback at the same node?

  • 1.  why only one cut can be added by cut callback at the same node?

    Posted Tue July 08, 2008 12:40 AM

    Originally posted by: SystemAdmin


    [leo said:]

    Dear All,

    I use a cut callback to add the found cuts as local cut. But only one cut can be added at each node.

    After the cut callback is called one time, no cut can be added although more cuts have been found at root node and CPLEX call the cut callback.

    I do not understand why not more cuts can be added after CPLEX calls the cut callback the first time. In the first call, the same routine "CPXcutcallbackaddlocal" can add one cut. After that, no cut can be added at the same node. In fact, I have found new cut. This routine return 0, which shows a cut is successfully added. But I check the model and find that only the first cut is added. The second is not there




    Thanks.


    Leo
    #CPLEXOptimizers
    #DecisionOptimization


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