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

[Joel Jaeggli <joelja@darkwing.uoregon.edu>]

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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/