Does GPU speed exponentially drop as number of threads increase beyond a
certain number?. I used to allocate number of threads= number of
transactions in data under consideration.
For Tesla K80 I see exponential drop in speed above 30290 Threads.
If true, is it a best practice to keep number of threads low and iterate
over the data to get results at optimum speed.
How to find best number of threads for a GPU?
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