Vincent Diepeveen wrote: > > ----- Original Message ----- From: "Mark Hahn" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Cc: <beowulf@beowulf.org> > Sent: Wednesday, September 20, 2006 6:51 PM > Subject: Re: [Beowulf] Has anyone actually seen/used a cell system? > > >>> Can anyone point me to a url, or tell me what their >>> experience is with this technology? Is it as fast as >>> it's purported to be? >> >> I haven't come anywhere near a Cell, but then again, I'm not sure I'd >> want to. 14.6 Gflops (64b, and assuming the full 8 SPE's) isn't bad, >> but then again, a 3 GHz Core2 dual-core is 24 Gflops, and almost >> certainly a lot more accessible, shipping now, runs linux, supported >> by compilers and goto-blas, etc. > > Comeon let's do some realistic comparision. Assuming IBM didn't totally > mess up, > let's do an objective compare for multiplication. > > Gflops is an overrated definition simply. > > The thing determining the number of matrix elements you can multiply a > second more than anything else, > is the slow instruction on most cpu called multiply.
See the berkeley article, it's very thorough and discusses cycle time for most fp operations on a variety of CPUs. http://www.cs.berkeley.edu/~samw/projects/cell/EDGE06_abstract.pdf -- Geoffrey D. Jacobs Go to the Chinese Restaurant, Order the Special _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
