Hi Doug,
Not to derail the discussion, but a quick question you say desk side cluster is
it a single machine that will run a vm cluster?
Regards,
Jonathan
-----Original Message-----
From: Beowulf <beowulf-boun...@beowulf.org> On Behalf Of Douglas Eadline
Sent: 23 August 2021 23:12
To: John Hearns <hear...@gmail.com>
Cc: Beowulf Mailing List <beowulf@beowulf.org>
Subject: Re: [Beowulf] List archives
John,
I think that was on twitter.
In any case, I'm working with these processors right now.
On the new Ryzens, the power usage is actually quite tunable.
There are three settings.
1) Package Power Tracking: The PPT threshold is the allowed socket power
consumption permitted across the voltage rails supplying the socket.
2) Thermal Design Current: The maximum current (TDC) (amps) that can be
delivered by a specific motherboard's voltage regulator configuration in
thermally-constrained scenarios.
3) Electrical Design Current: The maximum current (EDC) (amps) that can be
delivered by a specific motherboard's voltage regulator configuration in a peak
("spike") condition for a short period of time.
My goal is to tweak the 105W TDP R7-5800X so it draws power like the 65W-TDP
R5-5600X
This is desk-side cluster low power stuff.
I am using extension cable-plug for Limulus blades that have an in-line current
meter (normally used for solar panels).
Now I can load them up and watch exactly how much current is being pulled
across the 12V rails.
If you need more info, let me know
--
Doug
> The Beowulf list archives seem to end in July 2021.
> I was looking for Doug Eadline's post on limiting AMD power and the
> results on performance.
>
> John H
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--
Doug
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