Messages in this thread | | | Date | Tue, 2 Aug 2005 08:18:55 -0700 (PDT) | From | Joel Jaeggli <> | Subject | Re: Power consumption HZ100, HZ250, HZ1000: new numbers |
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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.
> >
-- -------------------------------------------------------------------------- Joel Jaeggli Unix Consulting joelja@darkwing.uoregon.edu GPG Key Fingerprint: 5C6E 0104 BAF0 40B0 5BD3 C38B F000 35AB B67F 56B2
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