Author: Robert Hyatt
Date: 09:20:08 12/04/03
Go up one level in this thread
On December 04, 2003 at 12:09:02, Slater Wold wrote: >Please take into consideration that Bob is *NOT* done with the 64-bit Crafty, >and these numbers aren't 'solid'. Let me add that these are positions that misbehave for various reasons, which is what I think originally caught your eye. I would not particularly use WAC for a speedup test myself, I have a set of positions I normally run that includes a few tactical positions a few quiet positions, a few opening positions and a few endgame positions... Not that that is a better test, but it does have a bit more diversity. > >I ran a test a while back, on a dual AMD 1.73Ghz and two specific positions >where speedup is pretty ugly (or at least, odd). You can read the original >thread here: http://www.chess-archive.com/ccc.php?art_id=250157. > >My original results were: > >WAC.41 >1k6/5RP1/1P6/1K6/6r1/8/8/8 w - - > >NPS using 1 CPU: 1503k >NPS using 2 CPUs: 1786k (1.19x) > >11th ply 1 CPU: 48.36s >11th ply 2 CPUs: 2.99s (16.17x - LOL) > >WAC.76 >r1b1qrk1/2p2ppp/pb1pnn2/1p2pNB1/3PP3/1BP5/PP2QPPP/RN1R2K1 w - - > >NPS using 1 CPU: 804k >NPS using 2 CPUs: 1306k (1.62x) > >11th ply 1 CPU: 19.39s >11th ply 2 CPUs: 13.42s (1.44x) > > >And now the Opteron results: > >WAC.41 >1k6/5RP1/1P6/1K6/6r1/8/8/8 w - - > >NPS using 1 CPU: 2480k >NPS using 2 CPUs: 4687k (1.89x) >NPS using 4 CPUs: 8660k (3.49x) > >11th ply 1 CPU: 1.72s >11th ply 2 CPUs: 0.93s (1.85x) >11th ply 4 CPUs: 0.69s (2.49x) > >12th ply 1 CPU: 4.74s >12th ply 2 CPUs: 2.56s (1.85x) >12th ply 4 CPUs: 1.71s (2.77x) > > >WAC.76 >r1b1qrk1/2p2ppp/pb1pnn2/1p2pNB1/3PP3/1BP5/PP2QPPP/RN1R2K1 w - - > >NPS using 1 CPU: 1573k >NPS using 2 CPUs: 3046k (1.94x) >NPS using 4 CPUs: 5902k (3.75x) > >11th ply 1 CPU: 10.61s >11th ply 2 CPUs: 5.76s (1.84x) >11th ply 4 CPUs: 2.83s (3.75x) > >12th ply 1 CPU: 57.85s >12th ply 2 CPUs: 35.24s (1.64x) >12th ply 4 CPUs: 25.83s (2.23x)
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