Author: Peter Kasinski
Date: 05:57:54 09/15/99
Go up one level in this thread
On September 15, 1999 at 08:43:54, Robert Hyatt wrote: >On September 15, 1999 at 07:23:25, Vincent Lejeune wrote: > >>On September 14, 1999 at 22:43:56, Robert Hyatt wrote: >> >>> >>>Here is an interesting WAC run for the currently released version 16.18, >>>run on a 21264 alpha (667mhz, nothing top-secret): >>> >>> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 >>> +------------------------------------------------------------ >>> 1 | 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 >>> 2 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>> 3 | 0 0 0 0 0 0 0 0 1 0 0 2 0 0 3 >>> 4 | 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 >>> 5 | 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 >>> 6 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>> 7 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>> 8 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>> 9 | 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0 >>>10 | 0 0 0 0 0 0 0 0 0 0 0 39 0 0 0 >>>11 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>>12 | 0 0 0 0 3 0 0 0 0 0 0 0 1 0 0 >>>13 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 >>>14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>>15 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>>16 | 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0 >>>17 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 >>>18 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>>19 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 >>>20 | 0 0 0 0 48 0 0 0 1 2 0 0 0 0 0 >>> >>>The results are in order by column. positions 1-20 are in column 1, 21-40 >>>are in column 2, etc. Max time limit was 60 seconds. This is the first run >>>I have done where it got all 300 correct on a single-cpu machine. If we drop >>>the time limit to 30 secs/position, it misses number 100 and 230, for a total >>>of 298. If we drop the time to 10 secs, same result. If we drop this to 5 >>>secs, it drops to 297. >>> >>>Obviously this box like crafty and vice-versa. :) >>> >>>Here is the summary from the end of the test: >>> >>>total positions searched.......... 300 >>>number right...................... 300 >>>number wrong...................... 0 >>>percentage right.................. 100 >>>percentage wrong.................. 0 >>>total nodes searched.............. 236973211.0 >>>average search depth.............. 4.5 >>>nodes per second.................. 783641 >>> >>> >>>not bad, almost 800K on one cpu. Can you guess how the 1ghz and beyond >>>versions will run? And don't forget SMP as this is just one cpu. Pretty >>>amazing boxes, those alphas... >> >>What about the cost difference between a quad-xeon 450 and 21264-one processor ? >> and between a 8way-xeon 450 and 21264-two processors >>? >> >>The 2 systems got approximatively the same NPS for crafty ... > > >I haven't looked at pricing for the alpha, but the quad xeon (400, not 450) >cost me about $11,000. The 8-way is about 80,000 with 8 cpus. I wouldn't >be surprised to find the 21264 priced similar to the quad, but I am certain >that the dual alpha is way cheaper than the 8-way xeon... Speaking of hot boxes... Software: Crafty 16.16 SMP Hardware: Celeron 563MHz (7.5 x 75MHz) Cost: $500.00 (motherboard and 2xCPU) Benchmark: 529,000 NPS Regards, PK
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.