[Beowulf] Mellanox ConnectX-3 MT27500 problems

Hearns, John john.hearns at mclaren.com
Mon Apr 29 01:53:04 PDT 2013

> I had to fix the cables to get 56Gbit/s link state. Without Mellanox FDR
> cables, I was only getting 40. So maybe check your cables. And if you're
> not 100% sure about your switch, try connecting the nodes back-to-back.

Have a look at this article:


Jorg, I would say you should ask your supplier about the cables.

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