Setting the number of cores for a Gurobi license in JuMPg

Any help with the following error would be much appreciated. I tried set_optimizer_attribute(model,"Threads",8), but still get the error…

julia> set_optimizer(model,Gurobi.Optimizer)
ERROR: Gurobi Error 10009: License is for 8 cores, machine has 12

Looks like I need to address this with Gurobi:

Contact Gurobi support. I dont think this is related to the Julia interface.

Yes, the license needs to be updated by Gurobi to match the cores. Thanks.

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