Decision Optimization

Decision Optimization

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  • 1.  Get unbounded direction for non convex QP

    Posted 04/26/19 03:14 PM

    Originally posted by: AnirudhSubramanyam


    I'm getting a CPLEX solution status code 133 after solving a nonconvex QP.  Is it possible to get an unbounded direction in this case? I understand that CPXXgetray only works for LPs (?)


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  • 2.  Re: Get unbounded direction for non convex QP

    Posted 05/02/19 03:15 PM

    Originally posted by: AnirudhSubramanyam


    Could anyone from CPLEX help me with this question? Thanks.


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  • 3.  Re: Get unbounded direction for non convex QP

    Posted 05/09/19 02:53 PM

    Originally posted by: AnirudhSubramanyam


    ?


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  • 4.  Re: Get unbounded direction for non convex QP

    Posted 05/10/19 04:55 AM

    Originally posted by: PierreBonami


    Sorry for the late answer,

    No, it is not possible to get the ray for nonconvex QPs. Note that error 133 means that the convex relaxation that we computed was not bounded but the original model might be bounded.

    The direction we have is in a different space and can't be accessed.

    Best,

    Pierre


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