[Beowulf]Infrastruture planning for small HPC 40/100 gigabyet eyhernet or Infiniband?

Jim Lux james.p.lux at jpl.nasa.gov
Sun Jul 27 22:19:56 EDT 2008


Quoting Eugen Leitl <eugen at leitl.org>, on Sun 27 Jul 2008 12:28:07 PM PDT:

> On Sat, Jul 26, 2008 at 09:15:23PM -0700, Nifty niftyompi Mitch wrote:
>
>> Did I read this correctly?
>> Are you cutting holes in the walls of a home.....?
>
> Real homes have cable ducts -- I'm limited to drilling through walls.
> Unfortunately, due to lousy electric installation I'm stuck with
> severe ground loop issues (I catched that too late orelse
> I would have put in a heavy ground wire strung along the CAT 6/7).
> Galvanic separation would be a god-send -- but for the price
> tag, and unavailability of GBit polymer optical.

bear in mind that ordinary ethernet both coax and twisted pair is  
galvanically isolated.





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