[Beowulf] are compute nodes always kept in a private I/P and switch space?

Rahul Nabar rpnabar at gmail.com
Wed Jan 13 19:35:46 EST 2010


On Wed, Jan 13, 2010 at 12:37 PM, Mark Hahn <hahn at mcmaster.ca> wrote:

> we have all our compute nodes on private addresses and also disable NAT.
> this does make it somewhat trickier to get external-hosted evil-type
> licenses to work (flexlm with vendor daemons).  but I'd say this is a fairly
> useful
> dividing issue: clusters that are all-public tend to be personal-ish and
> small.  clusters that are larger and support very wide groups tend to be
> more tightly controlled.  I think the way to think of it is that if you
> have a personal or limited-purpose cluster, you _do_ in fact want it to
> depend on (and wait on) external resources (licenses, fileservers, GUI
> apps).
> for a large, broad-purpose cluster with lots of disparate users, it's very
> important to minimize those sources of complexity and inefficiency.

Thanks Mark! Makes a lot of sense. Thanks for sharing your experiences!

-- 
Rahul

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