[BALUG-Talk] Accessing 128GB of RAM

[Raj Kumar Gurung]

Yes, We have to run a 32 Bit kernel, since some of our apps don't support
64Bit. And in the case if we run  32bit, is it possible to address the 128GB
Memory?

Any virtualization techniques or others...I am open to suggestions.

-

On Feb 8, 2008 12:21 PM, Jeffrey Siegal <jbs at quiotix.com> wrote:

> Opteron is a 64 bit processor.  Can you even boot a 32 bit kernel on one?
>  Not sure, but you don't want to.  Use a 64 bit kernel.  You can still run
> 32 bit apps if needed.
>
> On 2008-02-08, at 12:19 , Raj Kumar Gurung wrote:
>
> These are AMD Opteron Quadcores.
>
>
> On Feb 8, 2008 10:46 AM, Jeffrey Siegal <jbs at quiotix.com> wrote:
>
> > What kind of CPUs are these?  If they're Intel/AMD, then a quad core
> > processor supports 64 bit, and a 32 bit processor can only support (I
> > think) up to 64 GB using PAE, but that can be quite slow.  You are
> > much better off running in 64 bit mode.  For other types of CPUs the
> > issues may be different.
> >
> > On 2008-02-08, at 10:40 , Raj Kumar Gurung wrote:
> >
> > >
> > > I am in process of assembling a machine with 4 quadcore(32bit)
> > > processors and 128Gigs of RAM. I wonder, if it is possible to
> > > address the 128G RAM using the 32 bit processors. FYI, I will be
> > > running Debian.
> > >
> > > Any ideas, suggestion would be appreciated
> > >
> > > thanks,
> > >
> > >
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