Rayson Ho wrote: >--- "Sean C. Garrick" <garrick@me.umn.edu> wrote: > > >>To: scitech@lists.apple.com >>From: "Sean C. Garrick" <garrick@me.umn.edu> >>Subject: pre-configured clusters >>Date: Thu, 22 Jan 2004 09:30:54 -0600 >> >>This is good news. Hopefully there will other communications options >>soon. I spent several hours yesterday learning about Infiniband. >> Infiniband is starting to show some life again, but it is still very expensive as opposed to the other components of most commodity clusters. Look for prices to come down. Wait if you can. Take note of the price of Infiniband switches now and see what they look like at the end of 2004. Also expect more cost-effective solutions on the HCA (host channel adapter) side, also very expensive at the moment. >> >>http://www.apple.com/xserve/cluster/wgcluster.html >> SGI Altix 350 probably a better buy http://www.serverwatch.com/news/article.php/3298041 "The SGI Altix 350 is priced starting at $12,199. A 4-processor configuration carries at a list price of $21,599, or $5,400 per processor. " The Apple cluster comes standard with gigabit ethernet: an acceptable interconnect only for a limited number of problems. The SGI uses proprietary Numa-Link, which is at least competitive with Infiniband, a much faster and much more expensive solution than gigabit ethernet, but the Altix 350 looks like a really good buy, especially if you're looking for a pre-packaged solution. RM