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Subject: Re: SELECTIVE MATH BY HYATT

Author: Matthew Hull

Date: 09:22:36 05/21/04

Go up one level in this thread


On May 21, 2004 at 12:13:09, Vincent Diepeveen wrote:

>On May 20, 2004 at 22:41:23, enrico carrisco wrote:
>
>>On May 19, 2004 at 22:24:08, Vincent Diepeveen wrote:
>>
>>>On May 19, 2004 at 12:18:04, Robert Hyatt wrote:
>>>
>>>>On May 19, 2004 at 10:29:28, Vincent Diepeveen wrote:
>>>>
>>>>>On May 18, 2004 at 14:07:37, Robert Hyatt wrote:
>>>>>
>>>>>>On May 18, 2004 at 13:52:29, Vincent Diepeveen wrote:
>>>>>>
>>>>>>>On May 18, 2004 at 13:25:18, Robert Hyatt wrote:
>>>>>>>
>>>>>>>>On May 18, 2004 at 12:34:31, Vincent Diepeveen wrote:
>>>>>>>>
>>>>>>>>>On May 18, 2004 at 11:44:27, Robert Hyatt wrote:
>>>>>>>>>
>>>>>>>>>Yes, you can't afford to leave USA 1 day, but you can afford $15k+
machines >>>>>>>>>always.
>>>>>>>>
>>>>>>>>I don't own a single 15K machine, period.  I own one sony laptop, one
gateway PC >>>>>>>>in my home.
>>>>>>>>
>>>>>>>>And you talk about "selective math".  In your case it is "non-math" as
every >>>>>>>>number you puke up is utter nonsense.
>>>>>>>
>>>>>>>So you deny that you wrote speedup = 8.81 in your thesis
>>>>>>>and that you wrote in your DTS article speedup = 11.1
>>>>>>
>>>>>>Please quote where I denied that.  I didn't deny _either_ result...
>>>>>
>>>>>8.81 != 11.1
>>>>>
>>>>>and your 11.1 results are based upon data which can be proven as a big
fraud. >>>>
>>>>
>>>>First, 8.81 came from BK at 5 plies.  11.1 came from a set of game
positions at >>>>10 plies.  8.81 carried nothing from position to position.
11.1 carried >>>
>>>Your 11.1 comes from nowhere. You invented it yourself. Based upon self
invented >>>speedup numbers you calculated then search time. This is trivial to
proof and >>>has been proven in 2002 august.
>>
>>Okay.  If it is so trivial -- please "re-prove" it.  I missed this August
2002 >>discussion of proof.  I would, however, be interested in seeing the
proof >>(rather than more threads of rants, raves, and name calling...)
>
>
>pos   2      4      8   16
>1  2.0000 3.40   6.50   9.09
>2  2.00   3.60   6.50  10.39
>3  2.0000 3.70   7.01  13.69
>4  2.0000 3.90   6.61  11.09
>5  2.0000 3.6000 6.51   8.98876
>6  2.0000 3.70   6.40   9.50000
>7  1.90   3.60   6.91  10.096
>8  2.000  3.700  7.00  10.6985
>9  2.0000 3.60   6.20   9.8994975 = 9.90
>10 2.000  3.80   7.300 13.000000000000000
>and so on for all positions
>
>That is the speedup from Hyatt if i simply divide the searchtimes through
single >cpu times.
>
>If diep however runs parallel i get not such nice numbers.
>
>For 2 processors i could get for example: 2.39 1.34 1.01 2.02 1.93 and so on.



Is it not true that DIEP uses a different parallel strategy than crafty or Cray
Blitz? If so, then one should not be surprised that their results are not the
same.

So you are comparing apples and oranges, yes?

Most programmers can understand this.



>
>Not nice distributed numbers.
>
>I have it in excel available (thanks to Ron Langeveld)
>
>>-elc.
>>
>><snipped>



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