Author: José de Jesús García Ruvalcaba
Date: 08:41:21 05/22/99
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On May 22, 1999 at 00:25:52, Robert Hyatt wrote: [snip] > >I'm not really assuming anything at all, because search loss is _not_ >constant. It is easily possible (and 100% probable) that many searches >with N processors run N times faster than with 1. I see this regularly. >Yes, there are cases where it is less. But in terms of NPS, they 'delivered' >what they said. Because when I quote NPS figures for Crafty (as does everyone >with a parallel search) I give "raw nps" numbers. Because 'effective nps' is >impossible to calculate. > [snip] Is it really impossible to calculate 'effective nps'? It seems that you can count duplicate nodes, and also nodes from branches which were not needed, and the remaining ones are the 'effective nodes'. Is there some difficulty in counting 'effective nodes?
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