[Beowulf] Re: torus versus (fat) tree topologies
bill at cse.ucdavis.edu
Fri Nov 19 19:08:04 PST 2004
> i believe we are a bargain in the 2-128 range - at the very least competitive, at many points cheap. check it out and make your own minds up.
I was surprised at the pricing, having heard some fairly pricey numbers,
surprisingly under the "buy quadrics" button on the quadrics site
is a price list, note the prices include switch, cable, and adapter:
Myrinet list pricing is similarly easy to find:
Dolphin/SCI was easy to find as well:
I could not however easily find a complete list of Infiniband prices
anywhere. Most all vendors I tried require requesting a quote. Does
anyone have a nice online source for such pricing?
I notice that the top 3  volume commodity  interconnects
all making pricing easily available:
* Myrinet 38.6%
* GigE 35.2%
* Quadrics 4.0%
Surprisingly (to me) I found all 3 on froogle, granted quadrics was
via ebay. Myrinet and GigE were also on pricewatch.com
 As listed by http://www.top500.org/sublist/stats/index.php?list=2004-11-30&type=conn&submit=1
 My definition is commodity is that I can pick my CPU/node and then
buy the interconnect.
Computational Science and Engineering
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