[Beowulf] Has DDR IB gone the way of the Dodo?

[Joe Landman]

Prentice Bisbal wrote:
> In the ongoing saga that is my new cluster, we were just told today that
> Cisco is no longer manufacturing DDR IB cables, which we, uhh, need.
> 
> Has DDR IB gone the way of the dodo bird and been supplanted by QDR?
> 
> If so, why would anyone spec a brand new cluster with DDR?

Hmmm.... Cisco isn't the only provider of IB cables.  Last I understood, 
they buy theirs from others.

Cisco does appear to be transitioning to *other* technologies.  Again, 
they aren't the only IB provider out there (seems such a shame, gobbling 
up TopSpin and then effectively discarding them).

Qlogic, Voltaire, Mellanox are happy to sell you stuff.  You can even 
call some of the tier2+ players and they will help.

Joe


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