Author: Robert Hyatt
Date: 05:35:04 09/04/01
Go up one level in this thread
On September 04, 2001 at 04:58:50, Ed Schröder wrote: >On September 04, 2001 at 04:01:51, Uri Blass wrote: > >>On September 04, 2001 at 03:29:05, Ed Schröder wrote: >> >>>On September 04, 2001 at 02:32:07, Ed Schröder wrote: >>> >>>>On September 03, 2001 at 21:27:30, Robert Hyatt wrote: >>>> >>>>>No, but you should stop making pronouncements about various processors, based >>>>>solely on how your program runs on them. That is _not_ a good benchmark. I'll >>>>>bet you any amount of money you want that Cray Blitz, in pure fortran, will >>>>>run 10x faster than your program, on a cray. Because that code was designed >>>>>to work on a vector architecture, and has specific algorithms designed to take >>>>>advantage of that kind of hardware. >>>> >>>>Just curious, when was the last time you have started Cray Blitz on a Cray? >>>> >>>>Ed >>> >>>More to this, see: http://www.top500.org/sublist/index.php3 >>> >>>Which is a top-500 of the fastest installed hardware in the world. >>> >>>Rank Manufacturer (GFlops) Processors >>> >>>1. IBM ASCI White,SP Power3 375 MHz [7226.00] [8192] >>>2. IBM SP Power3 375 MHz 16 way [2526.00] [2528] >>>3. Intel ASCI Red [2379.00] [9632] >>>4. IBM ASCI Blue-Pacific [2144.00] [5808] >>> >>>11. Cray Inc. T3E1200 [1127.00] [1900] >>> >>>439. Presto III Athlon 1.333 GHz [77.40] [78] >>> >>>Interesting is of course the AMD which gets almost 1 GFlop per processor where >>>the Cray by far does not get 1 GFlop per processor. Bottom line: isn't your >>>beloved Cray out-performed by nowadays micro processors available from your >>>local super market? >> >>I do not see how it is outperformed. >>Do you suggest that 1127.00 for cray is outperformed by 77.40 >>for the Athlon or maybe you compare only Gflops per processor > >>and in this case >>1127/1900 is smaller than 77.40/78 for the athlon. > >You got it. > > He did, you didn't. The T3 is a Digital Alpha-based machine. It is not the same as a normal vector Cray like the T932, the C90, etc... >>I also do not understand the meaning of these numbers >> >>What is the meaning of 78 processors? >>Does the commercial athlon has 78 processors and if it does >>then what is the reason that Deep Fritz is going to use only 8 >>processors against kramnik? > >Have a look at the URL I provided and its goals. You will see the Presto III >is a self-made system. > >Ed > > > >>Uri
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