Different result using an initial basis

Ongoing

Brais González

• February 07, 2020 09:48

Hello,

I was using gurobi in order to solve some linear problems and I found something which I do not understand. The issue is the following: I solved a problem using gurobi and I obtained 6.601723419e+01 as optimal value. However, I loaded a .bas file in order to set an initial basis and I obtained 7.000861317e+01 as optimal value.

Any idea why this happens? The problem file could be downloaded from https://www.dropbox.com/s/o8f95f29vvevvhv/problem.lp?dl=0 and the basis file from https://www.dropbox.com/s/9l07eplky2nf0ob/basis.bas?dl=0

Thank you in advance for your time.

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• Official comment

  

  Simranjit Kaur

  Gurobi Staff

  • December 06, 2024 00:50

  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?.
• 

  Silke Horn

  Gurobi Staff

  • February 07, 2020 14:31

  Hi,

  I could reproduce this. We'll reach out to you via a support ticket.

  Silke

  0
• 

  Brais González

  • February 11, 2020 15:36

  

  

  

  Thanks Silke!

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