On Fri, Dec 8, 2017 at 12:42 PM, David Cerutti <dscerutti.gmail.com> wrote:
> I've asked Ke Li at NVIDIA if he has any thoughts--personally my hypothesis
> is that the cards have an on-board temperature sensor and if they get too
> hot they throttle back the cycle frequency to manage power output. In our
> passively cooled system, we may just not have the right fan configuration
> to keep the card running at full speed for very long.
One simple way to test this is when you notice the slowdown run
'nvidia-smi' and note the performance state. If it's anything but P0
you're being throttled. I believe this can also happen due to too much
power consumption.
-Dan
--
-------------------------
Daniel R. Roe
Laboratory of Computational Biology
National Institutes of Health, NHLBI
5635 Fishers Ln, Rm T900
Rockville MD, 20852
https://www.lobos.nih.gov/lcb
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Received on Fri Dec 08 2017 - 11:30:02 PST
