[Beowulf] torus versus (fat) tree topologies

Ashley Pittman ashley at quadrics.com
Tue Nov 16 13:09:17 EST 2004

On Fri, 2004-11-12 at 17:51 -0500, Patrick Geoffray wrote:
> Going trough a crossbar cost about 100-150ns these days.

This isn't necessarily true, we reckon about 25ns on elan4.  This
doesn't give you perfect latency scaling across very large networks but
it's very close.


Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf

More information about the Beowulf mailing list