[Beowulf] [EXT] fdr in edr switch

Schmidtmann, Carl carl.schmidtmann at rochester.edu
Mon Mar 1 19:52:20 UTC 2021

I have doe the opposite - an fdr switch to edr card. The only caveat is that it needs to be an fdr cable. An edr cable between fdr and edr does not work.


Carl Schmidtmann
Center for Integrated Research Computing
University of Rochester

> On Mar 1, 2021, at 2:02 PM, Michael Di Domenico <mdidomenico4 at gmail.com> wrote:
> has anyone plugged a mellanox fdr card into a mellanox edr switch?  i
> need to connect a server that doesn't have a x16 port so no edr card,
> but i do have an fdr card that's x8.  i don't need the speed just the
> connection, but i've not tried this before.  a quick google says it
> should work, but i'm loathe to until i hear someone else has.
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