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Subject: Re: Lippy is [fastest Crafty clone] in ICC

Author: Peter Kappler

Date: 10:30:21 10/02/99

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On October 02, 1999 at 10:00:25, Robert Hyatt wrote:

>On October 02, 1999 at 08:00:36, Jeremiah Penery wrote:
>
>>On October 02, 1999 at 06:24:36, Vincent Lejeune wrote:
>>
>>>The fastest crafty clone in ICC
>>>
>>>finger lippy
>>>:
>>>Statistics for Lippy(C)         On for: 3:50     Idle:    0
>>>Lippy is currently involved in a match against EA6PZ(C).
>>>
>>>          rating [need] win  loss  draw total   best
>>>Wild        2152        396    45     4   445   2190 (26-May-1997)
>>>Bullet      2706        753    22    15   790   2707 (27-Sep-1999)
>>>Blitz       2933       1872   110    85  2067   2977 (26-Sep-1999)
>>>Standard    2422         80     7     8    95   2422 (02-Oct-1999)
>>>
>>> 1: Crafty v16.19a (8 cpus)
>>> 2: Currently running on a very fast Alpha prototype with 2 CPUs.  Two minor
>>>  bugs in Crafty cause the erroneous "8 cpus" in line 1 above and the erroneous
>>>  ~400% cpu in whispers.
>>> 3:
>>>
>>>
>>>Lippy(C) whispers: ply=12; eval=+3.10; nps=1087K; time=24.27; cpu=398%; egtb=0
>>>aics%
>>>Lippy(C) whispers: 27. Bc5 Kc8 28. Rb6 Re8 29. Ba6+ Kd8 30. g4 Nh4 31. Bb7 Kc7
>>>\   32. Bxa8 Rxa8 33. Rc1
>>>
>>>Suprinsingly, it's only at 2933 elo-points
>>
>>Perhaps it inherited its ratings from playing on a much slower machine.  It'll
>>take time to build up a bit.
>>
>>Jeremiah
>
>
>several things...  1. you are right... it started off at 2500-2600.  2.  Tim
>is running an early 16.20 version (early pawn majority code) that was not all
>that great, particularly against computers.  3.  I am not sure that lippy is
>the 667 21264 all the time, Tim would have to answer that.  It is _very_
>strong, hardware-wise...  faster with one cpu than my quad xeon...

That last statement is tough for me to swallow.  A single processor Alpha faster
than your quad Xeon?  Can you describe this Alpha?  I assume a big part of the
speedup for Crafty is the 64-bit architecture?

--Peter



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