[hpsdr] OT but relates to Intel Atom

[Chris Smith]

On 24 Feb 2009, at 12:34, Philip Covington wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> On Tue, Feb 24, 2009 at 6:38 AM, Chris Smith <chris at vspl.co.uk> wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> Hi
>>
>> I recently bought a D945GCLF2 board i.e. an Intel Atom with a view  
>> to using
>> it in a dedicated HPSDR set-up.
>>
>> Simply as a test, I installed Linux Fedora 10 x86_64. When I log in  
>> and run
>> the System Monitor, to my surprise, I see that the system thinks it  
>> has 4
>> CPUs.
>>
>> I have a separate system which has an Intel Core 2 Quad 2.4GHz  
>> which I can
>> boot into Fedora 10 x86_64 or WinXP Home. While in F10 I can see 4  
>> CPUs but
>> was expecting that as it is a "Quad".
>>
>> I thought the Atom was only a Core 2 Dual processor so why can F10  
>> see 4
>> CPUs? I was expecting to see only 2 CPUs.
>>
>> Puzzled...
>>
>> 73
>> Chris G4NUX
>>
>
> It has two cores and each core is hyperthreaded: 2x2 = 4
>
> <http://en.wikipedia.org/wiki/Hyper-threading>
>
> "A processor with hyper-threading enabled is treated by the operating
> system as two processors instead of one. This means that only one
> processor is physically present but the operating system sees two
> virtual processors, and shares the workload between them. "
>
> Regards


Doh!

Why didn't I think of that?

Cheers

Chris G4NUX

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