[Beowulf] 10GbE topologies for small-ish clusters?

Gilad Shainer Shainer at Mellanox.com
Wed Oct 12 09:30:02 PDT 2011

You can also check the Mellanox products - both for 40GigE and 10GigE switch fabric. 


-----Original Message-----
From: beowulf-bounces at beowulf.org [mailto:beowulf-bounces at beowulf.org] On Behalf Of Hearns, John
Sent: Wednesday, October 12, 2011 8:31 AM
To: dag at sonsorol.org; beowulf at beowulf.org
Subject: Re: [Beowulf] 10GbE topologies for small-ish clusters?


First time I'm seriously pondering bringing 10GbE straight to compute nodes ...

For 64 servers (32 to a cabinet) and an HPC system that spans two racks what would be the common 10 Gig networking topology be today?

- One large core switch?
- 48 port top-of-rack switches with trunking?
- Something else?

I was going to suggest two Gnodal rack top switches, linked by a 40Gbps link


I see though that their GS7200 switch has 72 x 10Gbps ports - should do you just fine!

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