Fan YANG

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3. Will Gurobi retain lazy cuts after changing the objective coefficients?

Dear Eli, Thanks for your reply! :)

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• Fan YANG
• March 02, 2021 13:52
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1. Community
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3. Will Gurobi retain lazy cuts after changing the objective coefficients?

Hi Eli, I meet a similar problem. Before re-solving, I need to change some constraints instead of the objective. I guess the Gurobi will also discard all of lazy constraints generated in an earlier...

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• Fan YANG
• February 24, 2021 13:40
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3. Retrieve global cuts

Hi Matthias, Many thanks for your answer.  Kind regards, Fan

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• Fan YANG
• January 28, 2020 09:12
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3. Retrieve global cuts

Hi Matthias,   I have a similar problem. If I close presolve, could I retreive those cuts?

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• Fan YANG
• January 27, 2020 17:44
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3. About Farkas Dual in Benders Decomposition

Hi Thomas,  Thanks for your reply, I am trying read and learn that page. Best.

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• Fan YANG
• October 24, 2019 15:11
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3. Cut loop at root node of MIP

Hi Sonja, Thanks for your reply. I got your point. I attached a picture. 

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• Fan YANG
• August 27, 2019 13:13
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3. Cut loop at root node of MIP

Hi Sonja, thanks for your reply. I understand!

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• Fan YANG
• August 27, 2019 12:57
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3. Cut loop at root node of MIP

Hi Eli, Thanks for your reply. I set  model.set(GRB_IntParam_Cuts, 0); which means to shut off cuts. Then why Gurobi still inserts cuts? Best regards, Fan  

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• Fan YANG
• August 23, 2019 16:25
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