I have a cluster with Dell blades. The Chassis has FDR, but the TOR IB
switches are only QDR. No problems
On 5/10/19 1:44 PM, Jörg Saßmannshausen wrote:
Hi Paul,
if that is a Mellanox network I would have thought that putting in a single,
dual port HDR InfiniBand card would do the trick as well. From what I
understand, the HDR will use the slower FDR speed when the other end is only
EDR.
I done a similar setup with a mixed network where the switch is FDR but some
of the nodes are only QDR and here the connection is throttled down to QDR.
I might, of course, be wrong here.
All the best from a sunny London
Jörg
Am Freitag, 10. Mai 2019, 12:13:42 BST schrieb Paul Edmon:
We are looking to bridge our FDR fabric to our HDR fabric via LNET and
we had a question about whether a single machine can have 2 different IB
cards simultaneously. Does anyone have any experience with that or know
if there are any hitches with having a single box with a FDR card and a
HDR card running simultaneously?
-Paul Edmon-
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