Re: Power consumption HZ100, HZ250, HZ1000: new numbers

Joel Jaeggli
2005-08-02T15:19:14Z

On Tue, 2 Aug 2005, Lars Marowsky-Bree wrote:
>
> But rather think "data center".

The difference between using our idle cpu cycles for seti@home or just
leaving the xeons and opterons idle when they're not crunching away is
around $1300 a month (yes, I know it's a big datacenter) slightly more
than half that, is the cooling used to remove the heat generated by the
machines. the rest is the machines themselves.

> Those guys want maximum cycles per watt. One way of getting there is
> using less watts when we don't use all cycles. This bring down power
> consumption, which directly brings down heat production, which brings
> down A/C needs.

Why pay for power you don't need to use. Why pay for a ups thats bigger
then it has to be. Why pay for more hvac then you need. Even now an idle
rack of dual opterons 244s is something like 4-5kw, busy is more like
6.8-8kw.

> Everyone wants to save power.

or lower their costs, or both.

>
>

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Joel Jaeggli Unix Consulting joelja@darkwing.uoregon.edu
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