Author: Dave Gomboc
Date: 05:46:16 05/27/99
Go up one level in this thread
On May 27, 1999 at 08:02:59, Robert Hyatt wrote: >On May 27, 1999 at 03:06:39, Jouni Uski wrote: > >>On May 27, 1999 at 03:02:37, Ed Schröder wrote: >> >>>On May 27, 1999 at 02:50:08, Marcus Kaestner wrote: >>> >>>> >>>>>Who cares, it will be a great show anyway. >>>>> >>>>>Ed Schroder >>>> >>>>ed, you´re right. >>> >>>And I expect that some of so called big-names will have a very hard >>>time as anything can happen in this super strong tournament. IMO there >>>are 7-10 programs who can win this tournament. >>> >>>When I voted on CCC that was difficult. In the end I picked: Chess Tiger, >>>Rebel (why not), Dark Thought, Conners and Zugzwang but I could have add >>>many more. >>> >> >>Never heard about Chessbase engines: Fritz,Hiarcs,Junior + multiple prosessors? >> >>Jouni > >It is not very 'clear' but the famous 'grapevine' would say these parallel >engines are not very effective. And this can also be predicted because of the >machines they are using. IE who would use a dual-cpu machine when quads are >readily available... _unless_ you are doing something pretty ugly in the >parallel search world: splitting only at the root. Just idle speculation since >we won't ever hear of any 'good' algorithm of course. But I have heard that >at least one of those is only getting 1.3X faster with 2 processors. And I once >had a program like that (Cray Blitz, 1983) as we only had 2 weeks to do a >parallel search and that was the only practical way to pull it off.) > >So running on a dual PII/550 will act like running on a single processor @ >550*1.3mhz, which is a bit faster than Ed's hardware, but not a lot... It was reported that Junior is running on a quad, getting a speedup of about 3. This doesn't sound much different from Crafty... Dave
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