Jacob Mannhardt

I recently upgraded to Gurobi 12.0.1 from 11.0.2. After the upgrade, previously optimal solutions became suboptimal. I am using exactly the same model and the same gurobi settings. This behavior ca...

Hey everybody, I have two models that are super similar, model A and model B. In fact, they only differ in one constraint. The matrix dimensions are similar as well:model A: Presolved: 7054320 rows...

Hey all, We use the barrier algorithm without Crossover for a relatively large model (see log below). I know that the ranges aren't great, but unfortunately the parameters must be in consistent phy...

I have a problem that is formulated as an MILP, however is reduced to an LP (0 integer variables) in Presolve (which is absolutely correct and a great feature that Gurobi detects that automatically...