Author: Robert Hyatt
Date: 11:28:58 09/17/01
Go up one level in this thread
On September 17, 2001 at 11:43:14, Vincent Diepeveen wrote: >On September 17, 2001 at 11:18:43, Robert Hyatt wrote: > >>On September 17, 2001 at 06:47:39, Vincent Diepeveen wrote: >> >>>On September 17, 2001 at 05:07:55, Gian-Carlo Pascutto wrote: >>> >>>The problems are huge. I do not know who wrote the 6-7 >>>crap. Crafty AFAIK never was running over a network properly. >>> >>>Bob can answer this better of course, but it's complete nonsense >>>that you get 6.0 - 7.0 out of 16 processors at a 100mbit network. >> >>I don't agree. They _did_ it. Schaeffer _did_ it. Others have done >>it also... > >If in worldwar I the biplanes were THE way to do dogfight, it doesn't >mean that for nowadays supersonic fighters (i would nearly write down scram >fighters) the way to go is biplane. > >That's a very good compare with the experiments from Schaeffer with >todays computerchess techniques used. > Poor analogy. Jets existed in WWII. None in WWI. But notice that _all_ planes have used wings (airfoils). And you will also notice that supersonic is not the best way for all forms of air combat, particularly air to ground. Just look at the Army's "warthog". >> >>> >>>Most likely the speedup is for a crafty version with more extensions >>>WITH shared memory. speedup is in general worse when the searchspace >>>you search is not overlapping for each processor. >>> >>>>Hi all, >>>> >>>>I missed most of the relevant thread but after quickly >>>>scanning through some posts I wonder why nobody has >>>>brought up APHID. >>>> >>>>The reported speedups for Crafty (version 12.something) >>>>with 16 processors are 6-7 without shared memory, and 9 >>>>with shared memory. >>>> >>>>Aditionally. the library itself as well as a 'distributed' >>>>Crafty that uses it are already available *now*. It shouldn't >>>>be too hard to adapt the very latest Crafties to it either. >>>> >>>>Whats the general opnion about it? Nobody experimented >>>>with this Crafty? >>>> >>>>-- >>>>GCP
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