[Beowulf] Cheap SDR IB

Daniel Pfenniger Daniel.Pfenniger at obs.unige.ch
Fri Feb 1 11:36:47 PST 2008

Brian Oborn wrote:
> A quick side question. Is it possible to use IB as a cross-over with no 
> switch? 

Yes, and the cables are the same.

> If I had just 2 fat nodes could I connect the HCAs directly to 
> each other and avoid the switch costs? 

Yes.  With 3 nodes it might be cheaper having 2 HCA per node, 6 cables,
than the switch solution.


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