slowest supercomputer still in operation

On 7 Aug 2012 at 21:38, Dave McGuire wrote: Allow me to propose a measure--LINPACK. Should run on just about everything and with excellent pedigree. Further, to make it time- sensitive, let's define a supercomputer as a machine that has a LINPACK score at least 75% of that of the most powerful machine offered by any vendor in the subject machine's year of introduction. And AFAIK, all supercomputers eat FORTRAN. The game with supercomputers is to blow away the competition, cost being very secondary. "Budget" versions with substantially lower performance don't count. 75% will accommodate near-misses. So, an ETA-10P doesn't qualify, but an ETA-10 does for 1988. Binary- compatible all. A STAR-1B or STAR-65 doesn't qualify, but a STAR-100 does for 1970. Ditto. A YMP-EL was not the state of the art for supercomputers in 1992. 133Mflops wasn't state-of-the-art in 1982. Maybe 1972. Bring it on... --Chuck