Author: Albert Silver
Date: 16:49:46 10/10/05
Go up one level in this thread
On October 10, 2005 at 15:41:46, Werner Schuele wrote:
>On October 09, 2005 at 12:41:57, Albert Silver wrote:
>
>>As I've been testing the various engines on the PDA, and I just acquired Pocket
>>Grandmaster that has further engines available, I decided to do a quick
>>comparison on Fruit 2.1 running on PGM as opposed to CEBoard.
>>
>>I admit I only did this testing expecting a maximum difference of a couple of
>>percent, since they were both running identically, with 8MB hash. However the
>>results were quite different. Fruit 2.1 running on CEBoard was consistently
>>about 40% faster in a half dozen test positions. I can test more, but I don't
>>expect any change in results. When Fruit achieved 45kns in CEBoard, it would
>>achieve 32 in PGM, and this was apparent at all times.
>>
>>I found this quite surprising and wonder the reason.
>>
>> Albert
>Hi Albert,
>on my Pocket PC (MDA III) I cannot confirm this difference. I get nearly same
>results:
>CeBoard : 1 min 25 and PFM 1 min 27 and so on.
>Can you send me 2 positions with your results and a confirmation of the file you
>use on CeBoard to see its the same here (fruit21.dll 123,0 kb build 598.1).
>Werner
Confirmed on the file version and size.
I already did a full test using Michael Gurevich's Pocket PC test suite, located
at CSS.
Here are 3 positions with their respective times using both CEBoard and PGM.
After retesting them, and due to an idea I had, it appears to be a GUI issue in
PGM.
I discovered (oddly enough) that I get different times depending on whether I am
using the 3/4 board with a toolbar on the right, or the full-sized board. I
double-checked this BTW.
The conditions are always 8 MB of hash, and of course running on a Dell Axim
X50v (624MHz):
[D]rq4k1/pp1nrppp/4bn2/6R1/3QP3/P4PN1/4B1PP/2B2RK1 w - - 0 21
Fruit on CEBoard takes 105 secs to find 21.Rxg7+!
Fruit on PGM with the full board takes 124 secs.
Fruit on PGM with 3/4 board takes 150 secs.
[D]2rq1rk1/pb3p1p/1p2pbp1/3p3R/2PP4/PP5R/1B3PPP/3Q1BK1 b - - 0 19
Fruit on CEBoard takes 69 secs to find 19...dxc4!
Fruit on PGM with the full board takes 82 secs.
Fruit on PGM with 3/4 board takes 99 secs.
[D]4rrk1/1bpR1p2/1pq1pQp1/p3P2p/P1PR3P/5NK1/2P2PP1/8 w - - 0 2
Fruit on CEBoard takes 78 secs to find 2.Kf4!
Fruit on PGM with the full board takes 93 secs.
Fruit on PGM with 3/4 board takes 113 secs
[D]2q5/8/6p1/B6p/7k/7P/R5PK/8 w - - 0 1
Fruit on CEBoard takes 119 secs to find 1.Rc2!
Fruit on PGM with the full board takes 135 secs.
Fruit on PGM with 3/4 board takes 165 secs.
[D]8/2kPR3/5q2/5N2/8/1p1P4/1p6/1K6 w - - 0 1
Fruit on CEBoard takes 60 secs to find 1.Nd4!
Fruit on PGM with the full board takes 72 secs.
Fruit on PGM with 3/4 board takes 87 secs.
Albert
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