Guorbi version 9.0.1 TimeLimit

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Zhen Lin

2021年07月22日 01:48

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For Gurobi version 9.0.1: If I set a start solution x0 and a "TimeLimit" for Gurobi, and it stops because it reaches this TimeLimit, does Gurobi always give me the BEST feasible solution it has found (including x0)? Or it is possible that it will give me a solution that is worse than x0? By BEST solution I mean the solution with the smallest objective value in a minimization problem. If it does not give the best solution, is there a way to get the best solution it has found so far?

Also, is the behavior the same in different versions of Gurobi? For example, version 9.0.1 and version 9.1?

Thanks!

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  Simranjit Kaur

  • Gurobi Staff

  2025年06月23日 02:51 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?.
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  Eli Towle

  • Gurobi Staff

  2021年07月24日 00:31

  Assuming you are solving a MIP, Gurobi will return the best feasible solution it finds, including your MIP start. Note that the MIP start could be rejected for various reasons, or Gurobi may not finish processing the MIP start before the time limit is reached. The log file will tell you how Gurobi handled the MIP start. This behavior is the same in all versions of Gurobi.

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