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how can i use gurobi 11 to quickly get the lower bound of my MINLP model?

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  • Jaromił Najman
    Gurobi Staff Gurobi Staff

    Hi Yinhong,

    I do not know YALMIP well enough so I cannot help with direct YALMIP code but I will try to provide some general input.

    How can I use Gurobi to get a more tight lower bound quickly? Is there any parameter that I can set through yalmip sdpsettings?

    For nonconvex models, trying different formulations often helps. You should also always try to provide tight lower and upper bounds for all variables participating in a nonlinear term. As for parameters, you could experiment with Presolve, MIPFocus, Cuts, Heuristics.

    Could you please share Gurobi's log output. If you want, you could also share your model. To generate an MPS model from YALMIP, please refer to How do I write an MPS model file from a third-party API? Note that uploading files in the Community Forum is not possible but we discuss an alternative in Posting to the Community Forum.

    Best regards, 


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