Author: Robert Hyatt
Date: 19:55:07 02/11/05
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On February 11, 2005 at 16:23:08, Uri Blass wrote: >On February 11, 2005 at 15:30:06, Robert Hyatt wrote: > >>On February 11, 2005 at 13:07:54, Madhavan wrote: >> >>>On February 11, 2005 at 11:40:17, Robert Hyatt wrote: >>> >>>>Crafty/scrappy are logged off. I will probably leave scrappy on for the weekend >>>>using my dual, so that you can use the "crafty" handle for testing today and >>>>playing the rest of the weekend... >>>> >>>>Bob >>> >>>Dear Bob, >>> >>>do you think that crafty's CCT 7 hardware is faster than the hardware used in >>>CCT 6's and WCCC ? >> >>Heavens no. CCT6 uses a quad opteron 2.2ghz box. WCCC used a quad opteron >>2.4ghz box. Mike is using a dual 1.8ghz opteron box. Less than 1/2 the speed >>of what we used last year. > >Is it based on tests with Crafty or only on the number of ghz? > >The point is that ghz may be misleading and I know that Athlon 2ghz is faster >than PIV 3 ghz. > >Uri I don't follow. I _ran_ on quad 2.2ghz opteron for last CCT, which Crafty won. I _ran_ on quad 2.4ghz opterons for the last WCCC. Clearly dual 1.8's are less than half the speed of quad 2.4's. I've got 64 dual 1.6's here, which I have benchmarked as well. The 1.8's will be a little over 10% faster. At CCT6 Crafty was hitting 8M nodes per second on the low end, peaking at around 14M on the high end. No dual 1.8 will come within 50% of that.
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