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From: Orchid XP v3
Subject: Multicore insanity
Date: 8 Sep 2007 06:20:06
Message: <46e27756@news.povray.org>
Hi guys.

I'm just sitting here drooling at all the hyper-fly multi-processor 
multi-core crazyness that I'll never be able to afford in a million 
years. I was just wondering... Does Windows XP actually support more 
than 2 physical cores? Anybody know?

-- 
http://blog.orphi.me.uk/


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From: Orchid XP v3
Subject: Re: Multicore insanity
Date: 8 Sep 2007 06:38:37
Message: <46e27bad$1@news.povray.org>
http://www.xkcd.com/313/

The madness can't be far away now...



...ah yes, there it is.

http://www.intel.com/pressroom/archive/releases/20070905comp.htm?iid=pr1_releasepri_20070905m

Wahahahahaha!

-- 
http://blog.orphi.me.uk/


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From: Fredrik Eriksson
Subject: Re: Multicore insanity
Date: 8 Sep 2007 08:09:24
Message: <op.tyb31qbxcs6ysw@e6600>
On Sat, 08 Sep 2007 12:21:30 +0200, Orchid XP v3 <voi### [at] devnull> wrote:
> Does Windows XP actually support more than 2 physical cores?

As I understand it, XP Home supports multiple cores but is limited to a  
single processor. XP Pro supports multiple cores and is limited to two  
processors.



-- 
FE


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From: Orchid XP v3
Subject: Re: Multicore insanity
Date: 8 Sep 2007 08:55:23
Message: <46e29bbb$1@news.povray.org>
Fredrik Eriksson wrote:

> As I understand it, XP Home supports multiple cores but is limited to a 
> single processor. XP Pro supports multiple cores and is limited to two 
> processors.

Right. So a machine with 2 chips each having 4 cores would work?

(Frankly, you'd be very hard pressed to *find* a machine with more than 
2 physical chips...)

I did eventually manage to find this myself:

http://support.microsoft.com/kb/888732

Doesn't make the matter especially clear, but it seems to confirm what 
you're saying.

-- 
http://blog.orphi.me.uk/


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From: Orchid XP v3
Subject: Re: Multicore insanity
Date: 8 Sep 2007 09:21:03
Message: <46e2a1bf$1@news.povray.org>
Fredrik Eriksson wrote:

> As I understand it, XP Home supports multiple cores but is limited to a 
> single processor. XP Pro supports multiple cores and is limited to two 
> processors.

Micro$oft's own website is very vague on this point, but it appears that 
you're right: they limit physical CPUs, but not cores.

I found the following data for Vista:

http://www.winsupersite.com/showcase/winvista_editions_final.asp

(Scroll down to nearly the bottom for some charts.)

So, Vista supports 64-bit CPUs, eh? That's interesting... I wonder if 
anybody has tried it yet? (There is of course a 64-bit edition of WinXP. 
Unfortunately, it doesn't work properly... I'm wondering if the Vista 
one does.)

Also, only Business, Enterprise and Ultimate support 2 physical CPUs. (I 
find it surprising that Enterprise is limited to just 2... Maybe it's an 
omission of the chart?)

-- 
http://blog.orphi.me.uk/


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From: Fredrik Eriksson
Subject: Re: Multicore insanity
Date: 8 Sep 2007 09:27:05
Message: <op.tyb7nnb0cs6ysw@e6600>
On Sat, 08 Sep 2007 15:22:27 +0200, Orchid XP v3 <voi### [at] devnull> wrote:
> So, Vista supports 64-bit CPUs, eh? That's interesting... I wonder if  
> anybody has tried it yet? (There is of course a 64-bit edition of WinXP.  
> Unfortunately, it doesn't work properly... I'm wondering if the Vista  
> one does.)

Pretty much, assuming you can get stable 64-bit drivers for your hardware.



> Also, only Business, Enterprise and Ultimate support 2 physical CPUs. (I  
> find it surprising that Enterprise is limited to just 2... Maybe it's an  
> omission of the chart?)

I think you are supposed to buy the server versions if you want support  
for more processors.


-- 
FE


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From: Orchid XP v3
Subject: Re: Multicore insanity
Date: 8 Sep 2007 10:01:01
Message: <46e2ab1d@news.povray.org>
Fredrik Eriksson wrote:

>> So, Vista supports 64-bit CPUs, eh? That's interesting... I wonder if 
>> anybody has tried it yet? (There is of course a 64-bit edition of 
>> WinXP. Unfortunately, it doesn't work properly... I'm wondering if the 
>> Vista one does.)
> 
> Pretty much, assuming you can get stable 64-bit drivers for your hardware.

Mmm, OK.

>> Also, only Business, Enterprise and Ultimate support 2 physical CPUs. 
>> (I find it surprising that Enterprise is limited to just 2... Maybe 
>> it's an omission of the chart?)
> 
> I think you are supposed to buy the server versions if you want support 
> for more processors.

I thought Vista Enterprise *was* the server edition?

-- 
http://blog.orphi.me.uk/


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From: Gail Shaw
Subject: Re: Multicore insanity
Date: 8 Sep 2007 10:02:34
Message: <46e2ab7a@news.povray.org>
"Orchid XP v3" <voi### [at] devnull> wrote in message
news:46e2a1bf$1@news.povray.org...

> Also, only Business, Enterprise and Ultimate support 2 physical CPUs. (I
> find it surprising that Enterprise is limited to just 2... Maybe it's an
> omission of the chart?)

How many desktop-type PCs have more than 2 physical processors? Vista's not
a server OS and typically it's servers that have multi CPUs, not desktops.

I think (under correction) that Server 2003 DataCenter supports 64
processors. Server 2008 may support more.


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From: Gail Shaw
Subject: Re: Multicore insanity
Date: 8 Sep 2007 10:05:50
Message: <46e2ac3e@news.povray.org>
"Orchid XP v3" <voi### [at] devnull> wrote in message
news:46e2ab1d@news.povray.org...

> I thought Vista Enterprise *was* the server edition?

You put Vista on a server, you need your head examining. It's a desktop OS.

Isn't Vista Enterprise just the bulk-licence version? Asfaik, Vista Ultimate
is the top for features.


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From: Tor Olav Kristensen
Subject: Re: Multicore insanity
Date: 8 Sep 2007 10:45:41
Message: <46e2b595@news.povray.org>
Orchid XP v3 wrote:
...
>
http://www.intel.com/pressroom/archive/releases/20070905comp.htm?iid=pr1_releasepri_20070905m
> 
> 
> Wahahahahaha!
> 

What I am wondering about is how many critical bugs
these Intel Quad-Core Xeon processors have...

-- 
Tor Olav
http://subcube.com


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