Sophie Demassey

1. Community
2. Programming
3. Callback Setsolution from a MIP solution node

Hi, here is an update: I confirm that, in my code, setSolution/useSolution never works at where=MIPSOL (i.e. useSolution returns 1e+101) but it always does (i.e. useSolution returns the actual cost...

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• Sophie Demassey
• April 11, 2023 13:50
• 2 votes

1. Community
2. Programming
3. Callback Setsolution from a MIP solution node

Hi, Same issue here. To solve a MINLP, I run Gurobi's B&C on a MILP relaxation and, at each MIPSOL, I either cutoff the integer node with a combinatorial cut or provides the actual MINLP solution i...

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• Sophie Demassey
• April 03, 2023 12:13
• 1 vote

1. Community
2. Programming
3. non LP-optimal heuristic integer solution at CB_MIPSOL

And so I now have a feature request: tagged solutions to not to have to check their quality by ourselves ! Thank you very much Maliheh.

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• Sophie Demassey
• September 28, 2021 09:06
• 0 votes

1. Community
2. Feature Requests
3. adjust ObjBound with CbcSetSolution

Hi Elisabeth, thank you and indeed it was probably not clear, sorry. I try to explain below, but it is OK if there is no answer for now: it is more a wish for a feature, than a question.  Just like...

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• Sophie Demassey
• May 04, 2021 11:52
• Edited
• 0 votes