Activation loop parallelism seems to take more time

Hi guys,.

I was benchmarking of a VI to see how much time was saved by activating the parallelism of the loop. The loop uses only select and multiplication on an array of 2048 elements. To my surprise, allowing parallelism increased run time! Please see if you can recreate what I see by changing the parallelism of loop in the Sub - VI attached (Calc Wavelength.vi Central) and by changing the number of parallel loops allowed. Then run Test Calc Wavelength.vi Central to see how long it takes. The loops I'm welcome, plus it takes! Thanks for any idea.

Parallelism requires some resources in order to divide and back up data. etc... If your loop code doesn't do much, General fresh parallelism is relatively large and can you even slow worms down.

Tags: NI Software

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