[Beowulf] 90nm opteron power usage

Nate Faerber nfaerber at penguincomputing.com
Mon Aug 8 12:04:10 PDT 2005


You might want want to try CPUBurn to max out the CPUs.


I suggest you limit your runs to a couple of minutes at most to start.
Make sure your room is adequately cooled before doing this.  If you have
IPMI or lm_sensors available, you might want to query the temperatures
toward the end of your runs to see how hot things are getting.

./burnK7 & ./burnK7 & sleep 90s; kill %1 %2

Be careful.


On Mon, 2005-08-08 at 10:59 -0700, Bill Broadley wrote:
> I managed to hook up my kill-a-watt to a dual opteron 2.6 GHz, 4GB pc3200,
> and a 73GB scsi disk (a sun v20z).  The highest power consumption I
> could find was was running 1 distributed.net client per cpu.
> The results was 197-198 watts and 200-201 VA.  I'm quite impressed,
> our 2.2GHz version of the same box is in the 270-300 watt range.
> Has anyone found a (free/open) code that manages higher power consumption
> than the distributed.net client?
> Kudos to AMD for such a big improvement, I thought it might be useful
> for those planning cooling or power for any of the newer 90nm AMD chips.
> Anyone have similar numbers for a new dual nacoma/64 bit xeon?
Nate Faerber, Senior Engineer - Clusters
Tel: 415-954-2866   Fax: 415-954-2899   Toll Free: 888-PENGUIN

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