Pulling out the runtime value seeming to not work properly in Gurobi 9.0

Answered

Laaziz Lahlou

May 12, 2020 22:49 Edited

Hi,

I am getting a strange result from Gurobi 9.0 when I try to pull out the runtime. From the statistics I get this :

Multi-objectives: solved in 0.11 seconds, solution count 6

However, when I do something like this :

print "Solved in %.6f" % model.Runtime

it says : Solved in 0.000000

Is there any reason why it does not pull out the same runtime value as the one returned by the statistics ?

Thanks

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Comments

4 comments

Official comment
Simranjit Kaur

Gurobi Staff

June 23, 2025 03:13 Edited
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?.
Eli Towle

Gurobi Staff

May 13, 2020 00:41 Edited
Hi Lahlou,

There is currently an issue with the RunTime attribute resetting after you (e.g.) write a solution file or update the model. Could you try querying the runtime immediately after optimizing, before doing anything else?

Thanks,

Eli
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Laaziz Lahlou

May 13, 2020 14:20
Hi ELi

it works just after executing the optimize function. I hope this will be fixed for the next release.

Thanks a lot
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Eli Towle

Gurobi Staff

May 13, 2020 21:58
Hi Lahlou,

Great, thanks for the update. Yes, this will be fixed in the next major release.

Eli
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