Author: Gian-Carlo Pascutto
Date: 03:15:19 08/29/02
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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 -- GCP
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