Author: Dann Corbit
Date: 17:05:59 08/29/02
Go up one level in this thread
On August 29, 2002 at 06:15:19, Gian-Carlo Pascutto wrote: >On August 28, 2002 at 15:20:25, Georg v. Zimmermann wrote: > >>Hey GCP, >> >>how is Deep Sjeng going ? What did you use to understand the parallel >algorithms you are using (which ones) ? > >I started out with ABDADA (described in ICCA journal article and used >in Amy), which got me a speedup of +- 1.2. I went on to try PVS (Crafty >15.0 and described in several articles about parallel search) which got >me a speedup of 1.2-1.3. > >1.3 wasn't enough, so I 'bit the bullent' and started looking at DTS (Cray >Blitz). Unfortunately, DTS is both hideously complicated and requires a >nonrecursive search and a p2p design. > >I spent some time working on a variant of DTS that can work with a recursive >search function and a master-slave design and that is what I am using now. > >It still needs a lot of test work, but current results indicate a speedup >of about 1.6 I have a dual Xeon here at 2.4 GHz (1 gig ram). Might be worth a bench call to see how it can perform.
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