Lin Lin

  • Gurobi-versary
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Recent activity by Lin Lin Recent activity Votes

  • How does Gurobi 10.0.0 handle quadratic constraints?

    Answered

    I have a quadratic constraint in my model (with linear objective) and while I solve it in Gurobi, I didn't see the error message GRB_ERROR_Q_NOT_PSD. Given that, I got questions: 1. Since I didn't'...

    Lin Lin Edited 4 followers 10 comments 0 votes

  • Heuristic not used

    Answered

    Hi there,   I'm using Gurobi to solve a very large problem that may take a few days. However, I observed that in the first 48 hours no heuristic was used, and no feasible solution had been founded ...

    Lin Lin Edited 3 followers 4 comments 0 votes

  • Dealing with repeatedly read in constraints

    Answered

    Hi there! I'm trying to solve a large location-allocation problem by first find the location variable values with some metaheuristic and then use Gurobi to find allocation variable values. Thus it ...

    Lin Lin 3 followers 2 comments 0 votes