Sonja Mars

Hi Henrique, I can confirm Gurobi does not have such a parameter. Also please note that normally Gurobi does not kill the process but your operating system does. If Gurobi runs out of memory, it wi...

Hi Thomas, Branching priority: Yes, variables are allowed to have the same branching priority. Gurobi picks the order of the variables to branch on with an internal not public algorithm.  Gurobi w...

Hi Hooman, No these are two different things, the first one creates m contraint_1 objects and m constraint_2 objects. The second one created m constraint_1 objects and m*m constraint_2 objects, bu...

Hi, Can you also post some log files for these runs (of if they are to long snippets from the log)? I am wondering if this could be a numerical issue.  Additionally, please note, user cuts need to ...

Hi Vishnu, I am not sure I understand. I was pointing to the range of your matrix coefficients. You have some numbers in there that are 0.0000000000001. This is still positive and if there is real ...

Hi Vishnu, This model suffers from bad numerics. The coefficient range of the quadratic constraint is really huge. Where are these small coefficients coming from?  You might want to look at our num...

When is the first feasible solution found? Can you post the 5 log lines before and the 5 lines after this event? Thanks,   Sonja

Hi Vishnu, Can you post some parts of your log file of a run with the quadratic constraint? If Gurobi runs for day, the full log file might be a bit too much, but maybe the log until the roughly 10...

Hi Ozgur, That is odd, what happens if you run this locally on your machine? The log indicates that Gurobi finished the optimization, I have no idea why it is not returning. Do you run any kind of ...

Can you clarify what exactly you mean by error? The code seems to be fine. Just the model that comes out of it, is non-convex. Gurobi can solve this kind of problem if you add  of.params.nonConvex=...