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

Hearns, John john.hearns at mclaren.com
Wed Oct 12 08:28:28 PDT 2011


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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