Author: Carsten Kossendey
Date: 09:03:12 04/22/98
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On April 22, 1998 at 11:20:17, Ernst A. Heinz wrote: >On April 22, 1998 at 10:47:27, Mark Young wrote: > >>I heard that IBM has come out with a 6 billion move a sec. version of >>Deep Blue. Is this true? Is there going to be a rematch that I have not >>heard about? If not why did they come out with a new version? >> >>Im in bed with the flu and have a high fever. So if I did not hear CNN >>right forgive me. >> >> Mark Young > >Whoever reported this fell for a typically clever marketing gag of IBM >... > >Today, IBM announced a new model of their RS/6000 SP parallel computer >line with 332MHz CPUs. The announcement *claims* that these are up to >5x times faster than the CPUs of the Deeper Blue machine and, together >with the special chess processors, *would* result in a hypothetical >chess machine calculating *up to* 1 billion = 10^9 moves/nodes per >second. Below I quote an excerpt of the original announcement: > >"Company Press Release > > New IBM Technology Faster Than Deep Blue > > RS/6000 SP Capable of a Billion Moves Per Second > > SOMERS, N.Y.--(BUSINESS WIRE)--April 22, 1998-- Nearly one year after > its historic victory over chess grand master Garry Kasparov, IBM today > announced improvements to the RS/6000 SP that deliver five times the > performance of Deep Blue. > > The improvement is the result of IBM's new 332 MHz microprocessor, the > fastest chip available to date on the RS/6000 SP. If applied to the > system that powered Deep Blue, this processor would increase its > calculating power from 200 million to one billion chess moves > per second." > >I personally do neither believe that the integer performance of new CPUs >is 5x times higher than that of the ones used in 1997 -- maybe IBM >intentionally >compares the 332MHz CPUs to their 60MHz CPUs of the first match If my memory serves me right, DeeperBlue was using some sort of P2SC nodes. While the P2SC provides exceptional floating point performance, it stinks in integer performance. OTOH the P2SC based system have usually much higher memory badwidth, so there seems to be a tradeoff here. I'd guess the host part of EvenDeeperBlue would be faster by a factor 3 or so now. >-- nor do I >believe that their overall system performance scales linearly with the >clock >speed of the SP host CPUs. Not really, but since the host CPUs search the part of the tree near the root they will see a speedup there, no doubt. >IMO, the "Deep Blue" part of the announcement is pure marketing hogwash >... It is, they're not gonna have it take a bite at someone anywhen soon it seems. >=Ernst=
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