Somebody having access to a Windows machine with > 64 CPUs?
Corinna Vinschen
corinna-cygwin@cygwin.com
Wed Aug 12 15:20:00 GMT 2015
On Aug 11 12:57, Brian J. Johnson wrote:
> On 08/10/2015 12:05 PM, Achim Gratz wrote:
> >Corinna Vinschen writes:
> >>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.
> >
> >I think the only practical use of this possibility might have been in
> >the HPC space. I don't know anybody running such a system, though.
>
> In-memory databases also benefit from really large systems. Lots of RAM
> requires lots of sockets, which bring along lots of cores. Eg. http://www.sgi.com/company_info/newsroom/press_releases/2015/july/sap_hana.html
>
> I believe KVM will let you define a VM with > 64 CPUs, and recent versions
> provide some control over the NUMA layout of the virtual
> sockets/cores/threads. Maybe that will give you what you're looking for,
> Corinna.
Nice idea and incidentally a collegue reminded me of this idea a couple
hours ago as well. I tested this now locally and I got the results I'm
looking for (albeit they are a bit confusing).
Thanks,
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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