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Best Objective Bound Does not Change

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2 comments

  • Simranjit Kaur
    Gurobi Staff Gurobi Staff

    Have you tried setting the MIPfocus parameter to 2 or 3? This setting encourages the solver to spend more time on improving the best bound. Other parameters to try are: Cuts  to higher values and VarBranch=3 (strong branching) 

    You may also find the subsection titled "Lack of Progress in the Best Bound" of this paper useful: Practical guidelines for solving difficult mixed integer linear programs.

    1
  • Mingze Li
    Conversationalist
    First Question

    Simranjit,

    I have tried changing MIPfocus parameter. I will try the other parameters. Thank you for the paper!

    0

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