Inserting solution in preexisting tree

Answered

Diego Mendieta

January 05, 2021 14:21

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Hello, I am using different heuristics to get good solutions for a Routing Problem. I want to insert these solutions into the Branch and Bound tree and maintain the previously generated nodes, but when I insert a solution using the Start attribute, and run model.optimize(), the model is run from scratch, and I lose the previous Best Bound. Is there a way to do this?

Thank you!

0

• Official comment

  

  Gwyneth Butera

  • Gurobi Staff

  January 05, 2021 15:11

  Hi Diego - 

  Please see our Knowledge Base article How do I inject a solution calculated in a separate process? for an example.

   Gwyneth
• Official comment

  

  Simranjit Kaur

  • Gurobi Staff

  December 06, 2024 00:37

  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?.

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