[Beowulf] Register article on Epyc
e.scott.atchley at gmail.com
Wed Jun 21 08:27:53 PDT 2017
The single socket versions make sense for storage boxes that can use RDMA.
You can have two EDR ports out the front using 16 lanes each. For the
storage, you can have 32-64 lanes internally or out the back for NVMe. You
even have enough lanes for two ports of HDR, when it is ready, and 48-64
lanes for the storage.
On Wed, Jun 21, 2017 at 8:39 AM, John Hearns <hearnsj at googlemail.com> wrote:
> Interesting to see that these are being promoted as single socket systems.
> For a long time the 'sweet spot' for HPC has been the dual socket Xeons.
> I would speculate about single socket AMD systems, with a smaller form
> facotr motherboard, maybe with onboard Infiniband. Put a lot of these
> cards in a chassis and boot them disklessly and you get a good amoutn of
> compute power.
> Also regarding compute power, it would be interesting to see a comparison
> of a single socket of these versus Xeon Phi rather than -v4 or -v5 Xeon.
> The encrypted RAM modes are interesting, however I can't see any use case
> for HPC.
> Unless you are running a cloudy cluster where your customers are VERY
> concerned about security. Of course there are such customers!
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