[Beowulf] Clustering VPS servers

[Peter St. John]

I"m not clear on the setup. I'd agree that if we took, say, an IBM 390
type, one big machine, and split it into 1000 virtual linux servers, and
then beowulfed them back together, it would be odd. But I think Aquilina is
talking about a plurality of physical machines, each allocating some
resources to a network for a client (that's how I construe "virtual private
network"). In that case, using say MPI among the resources seems like a
reasonable way to exploit the available "server", no?
Peter

On Wed, Mar 20, 2013 at 2:53 PM, Ellis H. Wilson III <ellis at cse.psu.edu>wrote:

> On 03/20/2013 02:45 PM, Jonathan Aquilina wrote:
> > How does it defeat the purpose when you are using vms on the same host
> > though?
>
> Because, in that case in particular, you should just ask for your 10
> small VMs to be killed and 1 big VM to be brought up.
>
> The inefficiency your are going to get with splitting a physical machine
> into VMs and then patching it back together with this kind of setup will
> be pretty absurd, I'd bet.
>
> Best,
>
> ellis
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