Re: [Xen-devel] Xen CPU limit?

[Martin Lukasik <martin.lukasik@xxxxxxxxxxxxx>]

Jan Beulich wrote:
> > > > Martin Lukasik <martin.lukasik@xxxxxxxxxxxxx> 11.03.10 17:08 >>>
> > > >         
> > Can somebody explain why the number of CPUs Xen can handle is limited to 32?
> > I have a machine with 48 cores, and would love to virtualise it, but if 
> > I do it, I loose 16 CPUs, which isnt very good... :-(
> > Where is this limit coming from? Or maybe it is possible to change it 
> > somewhere in the source files?
> >     
> This is done on the make command line, by adding "max_phys_cpus=...".
>
> Jan
>   
Yeah... I thought that installing it from RPM wasn't a good idea... ;-)
Thanks for the info. Will give it a try some time this week.

BTW.: Wouldn't it make sense to include support for max number of CPUs 
when building RPMs?
Martin

--
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Martin Lukasik                                    tel: +44 20 7269 3115
Bioinformatics Officer
Bioinformatics and Biostatistics
Cancer Research UK, London Research Institute
44 Lincoln's Inn Fields, London, WC2A 3PX, UK
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