Reference iterator in parallel loop

Asked Jun 14 '19 at 15:26

Active Jun 14 '19 at 15:59

Viewed 266 times

I'm trying to reference the iteration value i in a parallel loop using Joblib. I'm getting the error NameError: name 'i' is not defined. Below is my code:

def sub5():
    curveplots = []
    nodes = node_matrix[:,i,:].T
    curveplots = bezier.Curve(nodes, degree=2).evaluate_multi(np.linspace(0,1,bezier_precision)).T
    return curveplots
curveplots = Parallel(n_jobs=-1,)(delayed(sub5)()for i in range(l))

I'm assuming this is because i is defined when I call Parallel, after the function sub5. But I'm not sure how to get around this. Any ideas? Thanks!

edited Jun 14 '19 at 15:59

petezurich

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asked Jun 14 '19 at 15:26

natnay

2

Pass `i` as an actual argument? – Andras Deak -- Слава Україні Jun 14 '19 at 15:30
1

Put `i` here `def sub5(i):` and here `delayed(sub5)(i)` – Steven Rumbalski Jun 14 '19 at 15:35
@StevenRumbalski that was it! Thank you! – natnay Jun 14 '19 at 16:01

Reference iterator in parallel loop

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