Author: Bernhard Bauer
Date: 01:25:20 04/13/02
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On April 12, 2002 at 18:33:16, Gian-Carlo Pascutto wrote: >On April 12, 2002 at 18:31:09, Gian-Carlo Pascutto wrote: > >>On April 12, 2002 at 18:07:26, bob o wrote: >> >>>2.I read somewhere that a 2 CPU machine would give an 80% increase in NPS. Does >>>this mean that there are diminishing returns with each extra CPU? >> >>Yes. >> >>What's even more worrying is that the latest public SMP Fritz >>(Deep Fritz) only had an increase of 30% with an extra CPU, >>not 80%. > >Little correction: what I was talking about wasn't pure NPS, since >that doesn't say anything in a parallel search, but the speedup. > >You can use a 1000-way system, get 1000 times the NPS and not go >a single precent faster. > >-- >GCP That's right. 8 CPU's give about 8-times the nps of a single CPU system. Bernhard
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