News for hackers. Stuff that matters.
Re:$1,279-per-hour, 30,000-core cluster built on Amazon EC2 ... by mrb on Tuesday September 20, 2011 @02:17PM (#3018869)
They sounded completely CPU-bound from the blog post. They went with "high-CPU" c1.xlarge instances that had modest RAM and storage specs. They gave no details and expressed no concerns whatsoever about RAM or storage bottlenecks.

http://blog.cyclecomputing.com/2011/09/new-cyclecloud-cluste...

Re:$1,279-per-hour, 30,000-core cluster built on Amazon EC2 ... by ghshephard on Tuesday September 20, 2011 @03:52PM (#3019288)
One way to find out - I posted a comment on that blog. We'll see if we get an answer.