Author: Slater Wold
Date: 20:45:44 01/27/04
Go up one level in this thread
On January 27, 2004 at 18:30:12, Dann Corbit wrote: >On January 27, 2004 at 17:06:19, Slater Wold wrote: > >>On January 27, 2004 at 15:37:58, Dann Corbit wrote: >> >>>On January 27, 2004 at 15:18:31, Jorge Pichard wrote: >>> >>>>http://asia.cnet.com/newstech/systems/0,39001153,39154800,00.htm >>>>http://www.dvhardware.net/article.php?sid=2016 >>>>http://www.hoise.com/primeur/03/articles/monthly/AE-PR-12-03-85.html >>>>http://news.zdnet.co.uk/hardware/chips/0,39020354,39117150,00.htm >>>>http://www.gridtoday.com/03/1020/102148.html >>>>http://www.idg.com.sg/idgwww.nsf/0/52F6C8B4A87C437A48256DC000351F9D?OpenDocument >>> >>>"New Scientist reports that a single chip will cost around US$16,500" >>>25 GFlops can be had cheaper. >>> >>>I doubt if it can do chess calculations faster than an 8-chip Brutus system. >> >>I don't. > >The chip is rated at 25 Gflops. It will take a lot of instructions to perform a >single chess move. 25 GFlops sounds like a lot, but this document: >http://www.intel.com/software/products/mkl/techtopics/wp_mkl_benchmark.pdf >shows that a single 3.4 GHz 32 bit Intel chip can get 4 Gflops performing DGEMM. > >So it is only 6 times faster than a standard CPU. 16500/6 = $2750 per chip for >break even. Price performance is a total yawner. Crafty on a P4 3.4Ghz would get about 1.5M nps. x6 would be 9M nps. I *heard* Brutus was getting around 20M nps at Graz. Divided by 8 and you've got 2.5M nps, per FPGA. >>>And probably still costs a lot more. >> >>8 FPGA cards are a lot more than $16,500. Not including the PCs they have to go >>into. > >I don't know what they cost. But a fairly strong PC can be had for $1000, so >that leaves $1062.50 per card. FPGAs run from $500 to $50,000. I believe the ones that CD was reportedly using are around $5k a piece. Imagine running crafty on 8 of them. 72M nps. I'd almost pay $132,000 to see that. :)
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