Can gurobi optimize SOS1 variables?

Answered

Chunqi Chen

October 15, 2022 08:30 Edited

I have an ILP optimization problem and I use the special ordered set of type 1(SOS1) to transform it into a linear program with only binary optimization variables. However, my optimization variables are all belongs to SOS1 which means that the x1,x2,... in C^T*X are all SOS1. Can gurobi solve this problem?

 

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• Official comment

  

  Simranjit Kaur

  • Gurobi Staff

  November 16, 2025 23:26

  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 try Gurobot, our chatbot interface offering instant, expert-level support.
• 

  Jaromił Najman

  • Gurobi Staff

  October 17, 2022 08:46

  Gurobi can handle SOS constraints. You can add these special constraints via the addSOS() method.

  Best regards, 
  Jaromił

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