Problem with Gurobi solver

Answered

Rosati Alessandro

• May 07, 2023 07:37

I have this error with Gurobi solver :Gurobi 10.0.1: Error: Objective Q not PSD (negative diagonal entry). Set NonConvex=2 to solve model.
exit value 18446744073709551615, but with Minos solver this error disappears

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  Riley Clement

  Gurobi Staff

  • May 08, 2023 00:29

  Hi Rosati,

  This error is being produced directly by Gurobi so you shouldn't expect to see the same error with Minos.

  If you want to solve non-convex models with Gurobi then you will need to set the NonConvex parameter to a value of 2, as indicated by the error message.

  How you do this will depend on the which interface you using to build your models.

  - Riley

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