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hundreds of nodes

Whitepaper seems to imply all nodes are connected to all other nodes, using infiniband. Infiniband's point-to-point afaik, so it'd be interesting to know how they plan to do that with hundreds of nodes.



IB is typically deployed in a Fat Tree network: http://en.wikipedia.org/wiki/Fat_tree

It's been used in high-performance compute clusters with thousands of individual nodes.


Gratuitous Infiniband porn: http://blogs.sun.com/jonathan/entry/size_matters

3,456 ports.


Dear god. I had no idea.




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