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X-HELO:	calimero.vinschen.de
Date:	Mon, 10 Aug 2015 18:56:04 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Somebody having access to a Windows machine with > 64 CPUs?
Message-ID:	<20150810165604.GE13029@calimero.vinschen.de>
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On Aug 10 10:23, Warren Young wrote:
> On Aug 10, 2015, at 10:00 AM, Corinna Vinschen <corinna-cygwin AT cygwin DOT com=
> wrote:
> >=20
> > for testing, I need somebody running a small test program on a machine
> > with more than 64 CPUs under Windows 7 or later.
>=20
> I don=E2=80=99t think that=E2=80=99s possible today.  Windows 7 Professio=
nal is
> limited to 2 physical processors and 256 cores, so the only way to get
> the result you want is a 2x33+ core system without Hyperthreading, or
> a 2x17+ core system with HT.
>=20
> Source: http://windows.microsoft.com/en-US/windows7/products/system-requi=
rements
> [...]
> The contemporaneous version of Server is, I believe 2008 R2, which has

Note the "at least".

I was referring to Windows 7 because that's the first OS (including
it's 2008R2 server version) which supports more than 64 CPUs and the
OS calls required to use and fetch info on them,
GetLogicalProcessorInformationEx.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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