[Beowulf] Wireless clusters (Bridging 802.11a)
james.p.lux at jpl.nasa.gov
Thu Jan 15 00:10:46 EST 2004
> take a look at the Actiontec cards. They have a line of prism based cards
that are supported by linux and when I was
> talking with them they made sounds like they were going to stay with the
prism chipset for a while.
While the prism chipset is interesting (for other reasons, particularly the
Prism2, not so much 2.5 and 3 or even newer ones), they do not support the
802.11a at 5GHz form of wireless LAN. (for what it's worth, the prism set is
interesting because it was originally a Harris product, then Intersil, and
now GlobespanVirata. However, Harris has a long history of making
military/space qualified components, and it turns out that the Prism 2 chip
set is made on a fab line that is compatible with radiation tolerant
> > In all cases, I'd have an "access point" of some sort to talk to my head
> > node/NFS, etc.
> > >
> > Part 2 of the quest.................
> > I'm also looking for suggestions on performance and timing tests to run
> > on this cluster once it's assembled. Aside from the usual network
> > throughput (benchmark program recommendations requested), I'm interested
> > in techniques to look at latency, latency distribution, and dropped
> > packets/retries, since I suspect that wireless networks will have very
> > "unusual" statistics compared to the usual cluster interconnects.
> I think you will want to play with the payload size. It seems to make a
big difference for what we are doing(net boot
> over wireless).
Thanks.. I suspect that measurements vs packet size are of some interest.
(something like HINT, except for size instead of computation).
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