Author: Christophe Theron
Date: 14:47:29 03/27/01
Go up one level in this thread
On March 27, 2001 at 14:54:34, Vincent Diepeveen wrote:
>On March 26, 2001 at 22:11:48, Dann Corbit wrote:
>
>>On March 26, 2001 at 22:00:41, Christophe Theron wrote:
>>[snip]
>>>Of course you could demonstrate your point about the 150 to 200 elo jump by
>>>writting a program that really sucks until it can run at 800MHz or higher, but
>>>my point is that a well designed program will not get a 150 to 200 elo increase
>>>just because it is running on a dual, even at 3 0.
>>>
>>>The elo increase, at any time control, will be in the range around 25 ELO.
>>>
>>>Hey, if you go at 6 plies on a 450 and reach 8 to 9 plies on a 800, you have a
>>>bloody serious problem somewhere in your program, believe me. :)
>>
>>Such changes are not at all unusual.
>>
>>If I have written a sorting algorithm that is O(n*log(log(n))) [and such things
>>do exist] will it be faster for sorting three things than Shellsort? Surely
>>not. But with enough data for input, it will always beat Shellsort.
>>
>>The curve may do all sorts of ugly, wiggly nonsenese near the origin, and have a
>>high initial y intercept. But given enough time, it must beat the other
>>algorithm because of the O(f(n)) behavior.
>>
>>If I have an algorithm with good O(f(n)) behavior, you may have an algorithm
>>with much worse O(f(n)) behavior and consistently beat me bloody with your
>>algorithm because of behavior near the origin. But if we both get faster and
>>faster machines, at some point the tables will turn.
>>
>>Since Vincent's algorithm does not perform well at low CPU strength, that is
>>certainly one possibility (among the myriad of possibilities).
>
>Let's not talk about oranges here but about plydepth.
>6 ply is a pathetic search depth no matter what your evaluation
>does.
>
>8-9 ply is of course *always* beating 6 ply search depths.
>And not an increas of 2.5 points margins in 100 games.
>
>It's more like 250 points increase, or in ICC rating more like 500
>rating points increase.
OK Vincent, I think we can settle this quickly.
I had overlooked in your post that you were talking about single PII 450 against
dual PIII 800, so I think that it means something close to 3.5 to 4 times
faster, then a 125-150 elo increase is possible.
Christophe
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