eugene@wilbur.nas.nasa.gov (Eugene N. Miya) (06/04/90)
> not a benchmark but an Olympic record
Er, excuse me, but what's an Olympic record?
Has the International Olympic Committee (IOC) started an event
for supercomputing? Sorry, I was vacationing and I also happened
to swing by the ISCA. If this is something new, I would appreciate
an open discussion as I am composing the FAQ and this sounds worthy
of having a paragraph if it's something really significant.
--e. nobuo miya, NASA Ames Research Center, eugene@orville.nas.nasa.gov
{uunet,mailrus,other gateways}!ames!eugeneoyanagi@gama.is.tsukuba.ac.jp (Yoshio Oyanagi) (06/06/90)
Sorry for my misleading expression. In article <6484@amelia.nas.nasa.gov> eugene@wilbur.nas.nasa.gov (Eugene N. Miya) writes: >> not a benchmark but an Olympic record >Er, excuse me, but what's an Olympic record? By "Olympic record", I mean "real but unrealistic performance". ^^^^ ^^^^^^^^^^^ I just wanted to stress that this PEAK speed is not realistic, just like the speed of Olympic runners. We are concerned with the performance for real applications. Yoshio Oyanagi
hoshino@gama.is.tsukuba.ac.jp (Tsutomu Hoshino) (06/06/90)
In article <5282@gama.is.tsukuba.ac.jp> oyanagi@gama.is.tsukuba.JUNET (Yoshio Oyanagi) writes: >Sorry for my misleading expression. > >In article <6484@amelia.nas.nasa.gov> eugene@wilbur.nas.nasa.gov (Eugene N. Miya) writes: >>> not a benchmark but an Olympic record > >>Er, excuse me, but what's an Olympic record? > >By "Olympic record", I mean "real but unrealistic performance". > ^^^^ ^^^^^^^^^^^ >I just wanted to stress that this PEAK speed is not realistic, just >like the speed of Olympic runners. We are concerned with the >performance for real applications. > >Yoshio Oyanagi > Supplement to Prof. Oyanagi's comment on "OLYMPIC RECORD". Karl Luis(Is this correct?) runs 100 m in slightly less than 10 seconds, but he cannot keep the same speed to 100 km. Ensemble average over the people of the country that he represents run much slower than he does. In this sense, the OLYMPIC RECORD is a peak speed. We are not boasting that QCDPAX is the world-fastest in terms of the peak speed. We are asking if there is any faster machine than QCDPAX in scientific applications, such as in the SOR method. CM-2 may be faster in the peak speed, but it might be slower than QCDPAX in this SOR benchmark problem, because the SOR includes relatively larger communication over computation, and CM-2 seems to be weak in its "connection" link. We believe that the SOR is a good benchmark for scientific applications, and the super parallel machine must have strong "connection", if it intends to be of practical use. Tsutomu Hoshino Developer of the PAX machines
eugene@wilbur.nas.nasa.gov (Eugene N. Miya) (06/07/90)
Ah! I see! A nice use of language! On behalf of the net,
thank you for the clarification.
--e. nobuo miya, NASA Ames Research Center, eugene@orville.nas.nasa.gov
{uunet,mailrus,other gateways}!ames!eugened3e101@pnl-geo.UUCP ( William Eggers ) (06/09/90)
In Supercomputing Review, there is an Ncube ad in which they claim 27 Gflops of "real performance" on their Ncube 2 model 6480 Scalar Supercomputer. I take that to mean peak performance, unless someone knows otherwise. The ad also says the machine is available now. Nevertheless that would seem to beat the Olympic record of peak performance claimed by QCDPAX. Anyone have information on real world performance of this new Ncube box? Bill Eggers Molecular Science Research Center Battelle PNL d3e101@pnl.gov