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on which variable does gurobi do branching in each node of MIPNODE callback

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  • Official comment
    Simranjit Kaur
    • Gurobi Staff Gurobi Staff
    This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum. Or why not try our AI Gurobot?.
  • Silke Horn
    • Gurobi Staff Gurobi Staff

    Hi Sina,

    You cannot get information about the branching. (Also note that the variables that Gurobi branches on may not be your variables at all since the model is transformed during presolve.)

    As for the BranchDir parameter, this determines the order in which the current node's child nodes are explored. The terms "down branch" and "up branch" refer to rounding down or up. (E.g. the down branch is the one where the branching variable is rounded down.) There is no setting for depth-first-search.

    Silke

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  • Sina Rastani
    • Gurobi-versary
    • First Question
    • First Comment

    Hi Sike,

    I get it. Thanks for your explanation.

    0

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