Is there a way to know how much time is spent in Gurobi usercuts?

Question

I am using JuMP Mathematical Optimization Interface user cuts Callbacks with Gurobi

MOI.set(m, MOI.UserCutCallback(), callback_benders_usercuts)

And I would like to know if there is a way to know how much time is spent in my usercut function callback_benders_usercuts?

usercuts_time = 0
callback_benders_usercuts(arguments)
    usercuts_time += time()
    # ... computing
    usercuts_time += time() - usercuts_time
    return

Doesn't work because, I think, callback_benders_usercuts is called at many nodes and my variable interconnects itself.

I get the following obviously incorrect:

 [ Info: Spent 1.614e9s in User cuts

Answer 1

You want instead

callback_benders_usercuts(arguments)
    t = time()
    # ... computing
    usercuts_time += time() - t
    return