 | | | Dual-core Opteron Support on RHEL v3 | Dual-core Opteron Support on RHEL v3 2006-01-22 - By Jussi Silvennoinen
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> > So will RHEL v3 U2 (ES or AS) see the dual Opteron and
> > use both CPUs? Also, how many CPUs would it support
> > if it does see the dual Opteron as 2 CPUs? Can I
> > comfortably install on a machine with 2 x dual
> > Opterons or 4 x dual Opterons? Thanks for your time.
>
> I don't think dual-core support showed up in RHEL3 until U5 or U6 (the
> release notes will indicate where support was added). Prior (eg: Update
> 2) I believe it'll just see one core. I belive the archives of this list
> should also have some discussion on dual-core support, perhaps hitting
> that would be useful as well.
>
> As for having 4 cores (2 cores X 2 processors) the AS flavor should
> handles this well.
You don't need AS for 2*2, RH counts sockets.
http://www.redhat.com/en_us/USA/rhel/details/limits/
...
"Red Hat defines physical CPUs equivalently to sockets, so a multi-core
and/or hyperthreading CPU is counted as a single CPU or socket when
determining which edition of Enterprise Linux to deploy."
--
Jussi
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