[SC.LUG] Eco Computing

[Roger Gibson]

While agreeing with everything below, one comment I would make is that 
from experience of heavy number crunching with vast sparse matrix 
manipulations etc, the same Fortran programme executes in a 
significantly shorter time with a Linux based OS compared with MS.  This 
may be just that my Linux Fortran compiler is better, but it does seem 
to indicate that the CPU is allowed to operate more efficiently.  So 
while the CPU is probably using the same instantaneous power when fully 
stretched, doing a total calculation in a shorter time means less energy 
has been used with a Linux system.

Maybe a heavy games player can tell us whether a given 'game' hits the 
buffers sooner in MS compared to Linux.  Roger.

On 03/08/2010 10:54, Damian Parker wrote:
> Hi,
>
> Id be guessing that the only power different would be CPU based as all
> other components in the system which take up far more juice all all
> still neede whichever OS your running.   My personal opinion based
> from playing with Gentoo, is that unless you get the linux power
> management spot on, so a lot of user playing around. I don't think its
> going to make any significant difference.
>
> Obvious things like blank and power down the screen and spin down
> HDD's which you can do in any OS are going to be far better power
> saving options than CPU.
>
> On 3 August 2010 10:09, Matthew Tolley<matthew at matthewtolley.co.uk>  wrote:
>    
>>
>> Hello everyone,
>>
>>
>>
>> I am reliably informed that Linux uses less power than other operating
>> systems.
>>
>> Are there some good quality third party websites which you can refer me to
>> which have benchmarked or measured this?
>>
>> All information welcome!
>>
>> Best wishes,
>>
>>
>>
>>
>> Matthew
>>
>>
>>
>>
>>
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>>      
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