How to use MIPGap in JuMP

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Matias Montecinos Jamett

2020年09月04日 21:27

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I'm solving a MILP and I need to fix the GAP using MIPGap by Gurobi

How do I use it?

Thanks in advance

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• 正式なコメント

  

  Simranjit Kaur

  • Gurobi Staff

  2025年06月23日 03:07 編集済み

  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?.
• 

  Eli Towle

  • Gurobi Staff

  2020年09月04日 23:21 編集済み

  You can set the MIPGap parameter with the set_optimizer_attribute function:

  model = Model(Gurobi.Optimizer)
  set_optimizer_attribute(model, "MIPGap", 0.01)

  Use the set_optimizer_attributes function to set multiple parameters at once:

  set_optimizer_attributes(model, "MIPGap" => 0.01, "MIPFocus" => 1)

  You can also set parameters inside of the \( \texttt{Model} \) constructor with the optimizer_with_attributes function:

  model = Model(
      optimizer_with_attributes(
          Gurobi.Optimizer, "MIPGap" => 0.01, "MIPFocus" => 1
      )
  )

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