turner@sp1.csrd.uiuc.edu (Steve Turner) (05/05/90)
In article <48598@ames.arc.nasa.gov> lamaster@pioneer.arc.nasa.gov (Hugh LaMaster) writes: > interesting to note that the ETA 10-G *still* has the world's Linpack > N=100 Fortran speed record, at 93 MFLOPS. > > Hugh LaMaster, M/S 233-9, UUCP ames!lamaster > NASA Ames Research Center ARPA lamaster@ames.arc.nasa.gov > Moffett Field, CA 94035 > Phone: (415)604-6117 I assume that you mean the *single processor* record, since the list that Dongarra publiished in the latest CAN shows the 8 processor YMP turning in 200 MFLOPS. Not to take anything away from the admittedly amazing ETA numbers. As a side note, I was quite happy to see that Cray and ETA between them took *all* of the top slots (about 10, wish I had my copy here...) The threat from the new Japanese machines may have been exagerated. (at least until the SX-3 comes out). -- Steve Turner (on the Si prairie - UIUC CSRD) ARPANET: turner@uicsrd.csrd.uiuc.edu UUCP: {ihnp4,seismo,pur-ee,convex}!uiucdcs!uicsrd!turner I went walking in the wasted city / Started thinking about entropy Smelled the wind from the ruined river / Went home to watch TV -- Warren Zevon
spr@eli.cray.com (Steve Reinhardt) (05/10/90)
In article <48598@ames.arc.nasa.gov> lamaster@pioneer.arc.nasa.gov (Hugh LaMaster) writes: >Cryogenic technology is not the only thing ETA did of interest. It is >interesting to note that the ETA 10-G *still* has the world's Linpack >N=100 Fortran speed record, at 93 MFLOPS. This is over 10% raw speed >advantage over the Y-MP and 30% MFLOPS/Clock Rate, since the clock speed >on the Y-MP is 6ns vs 7ns for the ETA. I have in front of me a copy of the LINPACK results dated 8/20/88, which shows an 8-CPU YMP delivering 195MF on the LINPACK N=100. This was using an early version of our Autotasking software to distribute the work automatically across multiple processors. Our YMP numbers have since gotten a little better through various tweaks. (Of course, if you meant single-CPU, you're right, though I would claim you should limit the ETA to one pipe, too.) Steve Reinhardt ARPA: spr@cray.com Cray Research, Inc. or spr%eli.cray.com@uc.msc.umn.edu 1345 Northland Drive UUCP: ...!uunet!cray!spr Mendota Heights, MN 55120 Work : (612) 681-5664 -- Steve Reinhardt ARPA: spr@cray.com Cray Research, Inc. or spr%eli.cray.com@uc.msc.umn.edu 1345 Northland Drive UUCP: ...!uunet!cray!spr Mendota Heights, MN 55120 Work : (612) 681-5664