"callbacks disabled for solver gurobi"

回答済み

Noortje Bonenkamp

2020年04月01日 13:17

• 
• 
• 

Hello community,

Currently I am investigating an MILP in Pyomo with gurobi. I would like to be able to add cuts during the B&B and found that callback functions can be used for this purpose. However, when I try to implement a callback function I get the following error: "callbacks disabled for solver gurobi". This error does not seem very common, and I wonder if you have any clue where it comes from.

I hope to hear from you.

Best regards,

Noortje

0

• 正式なコメント

  

  Simranjit Kaur

  • Gurobi Staff

  2025年06月23日 03:15 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?.
• 

  Noortje Bonenkamp

  2020年04月06日 13:43

  • 
  • 
  • 

  This question is answered, as apparently  callbacks are not possible in Pyomo. 

  0
• 

  Gwyneth Butera

  • Gurobi Staff

  2020年04月06日 14:54

  Hi Noortje - 

  I am not an expert Pyomo user, but I do see an example of a Gurobi callback in the Pyomo documentation here:

  https://pyomo.readthedocs.io/en/stable/library_reference/solvers/gurobi_persistent.html#pyomo.solvers.plugins.solvers.gurobi_persistent.GurobiPersistent.set_callback

  And in StackOverflow here:

  https://stackoverflow.com/questions/58200552/pyomo-and-gurobi-does-pyomo-support-solver-callbacks-to-gurobi/61028887#61028887

  I hope this helps!

  0
• 

  Noortje Bonenkamp

  2020年04月08日 14:37

  • 
  • 
  • 

  Thank you!!

  0

投稿コメントは受け付けていません。