[FoRK] [Beowulf] seamicro fabric?
aaron at bavariati.org
Mon Mar 5 11:31:37 PST 2012
On Mon, Mar 05, 2012 at 05:23:02AM +0100, Eugen Leitl wrote:
> From: Mark Hahn <hahn at mcmaster.ca>
> Has anyone found an informative description of the Seamicro fabric?
I hope Mark has repeated his search; http://google.com?q=anil+rao+fabric
and http://google.com?q=seamicro+interconnect turn up lots of info.
A 2011 PDF at Seamicro sez, "It is a three-dimensional torus, with both
path redundancy and diversity. The fabric is FLIT-based and wormhole-
routed, with integrated virtual-channel technology to manage congestion,
and has a throughput of 1.2 Terabits/sec."
Looks like proc boards use PCIe interconnects, like the old cPCI blades.
The more interesting bit (to me) is the possibility raised in an older
article that Rao and Lauterbach are thinking of turning their
interconnect into a datacenter-level fabric. Infiniband II, anyone?
Remembering the days of physically separate frontend and I/O processors,
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