Is it possible to retrieve duals from the root node (with added cuts by the solver) in a MILP problem?

Seyedkianoush Mousavichashmi

• April 01, 2021 14:58

Hi,

I have a MILP problem with a tight LP relaxation. In order to get the MILP value functions, I use LP relaxation duals.

When solving the MILP, I noticed in the root node has a much better bound than LP relaxation (thanks to the added cuts by the solver). I was wondering if I can get the duals from the root node (that also includes the added cuts) since it's probably closer to the value of functions of MILP and more accurate than the LP relaxation.

 

Thank you!

 

Regards,

Kianoush

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• Official comment

  

  Simranjit Kaur

  Gurobi Staff

  • December 06, 2024 00:33

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