Python, parallelization with joblib: Delayed with multiple arguments
Probably too late, but as an answer to the first part of your question:Just return a tuple in your delayed function.
return (i,j)And for the variable holding the output of all your delayed functions
results = Parallel(n_jobs=num_cores)(delayed(processInput)(i,j) for i,j in zip(a,b))Now results is a list of tuples each holding some (i,j) and you can just iterate through results.