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Subject: Re: crafty speedup numbers

Author: martin fierz

Date: 01:16:12 05/07/04

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On May 06, 2004 at 21:44:30, Robert Hyatt wrote:

>I re-read your stuff.  I think the way you did the calculation was a bit more
>favorable than the way I do it.  IE I always use the _last_ PV produced by the
>1-cpu search, and the time for that _same_ PV on the N-cpu search.

and what do you do if that same PV of yours doesn't turn up again?? that's the
reason i did it this way - there were two instances where after completion of
the ply the 4-way crafty wanted to play a different move than 1-way crafty.

i wanted to take the last known PV, but couldn't because of this.

cheers
  martin

>The first
>move  is more difficult to search in parallel than the remainder of the ply-1
>moves...   that is why I split at the root when possible in fact.
>
>But, as the saying goes, you can prove nearly anything depending on how you
>choose to interpret data.  Your interpretation is hardly invalid...  And might
>sometimes be more favorable rather than less.
>
>Who knows...



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