Set an initial solution to Gurobi while using lazy constraints

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haonan 钟

2023年07月19日 15:00

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Hi,

I want to send Gurobi an initial solution. It is also feasible to all lazy constraints that will be added. What should I do to let Gurobi accept it?

Thank you!

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  Simranjit Kaur

  • Gurobi Staff

  2026年11月13日 01:40

  This post is more than two 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.
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  Elisabeth Rodríguez Heck

  • Gurobi Staff

  2023年07月20日 06:34

  Hi,

  You can provide an initial solution to Gurobi using a MIP Start. Please see How do I use MIP starts? for more information.

  However, please note that it is possible that your MIP start might not produce a new incumbent. In other words, it is possible that Gurobi has found a better solution by the time your MIP start has been processed or that the solution you provided is infeasible due to numerical issues. This is explained more in detail in this article.

  Best regards,

  Elisabeth

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