Author: William Penn
Date: 05:22:22 07/28/03
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On July 27, 2003 at 15:19:05, Alan Grotier wrote: >On July 27, 2003 at 15:06:40, Alan Grotier wrote: > >>Is it possible / Could it be possible,that the same engine under different >>Gui's plays differently. >> >>For example. Will Fritz 5.32 using the original GUI play exactly the same >>when playing under the Fritz 8 GUI given the excate same conditions? > >> So is there any advantage to using the original GUI? > >>Alan I'm finding that the Shredder 7/Fritz 8 GUI is somewhat less friendly with my Windows 98se operating system than former GUI's. Also I've recently tried the Classic Shredder 6 GUI, and it is even more friendly than the Fritz/CB GUI's. Resources are limited in Windows 98se (and Windows Me) and the Classic Shredder 6 GUI uses a lot less of them, so that multitasking other applications becomes easier and faster for example. In particular large hash tables near the system limits are handled faster with the Classic Schredder 6 GUI. So there is a significant difference in speed (kN/s) between those different GUI's which ahould translate into some difference in playing strength too. As for the actual lines of analysis, my tests indicate that they are the same with the different GUI's. There is often some small difference in the depth of calculation numbers but they are probably trivial. The moves themselves seem to be the same with different GUI's if you allow for the differences in speed. I suspect that these differences in speed are less with newer operating systems such as Windows 2000 or XP, but Windows 98se and Me have this problem with limited resources. How much difference? Well I recently had occasion to do some lengthy analysis of a position. The starting speed with the Shredder 7 GUI was about 50kN/s after a minute or two, while the beginning speed with the Classic Shredder 6 GUI was over 100kN/s after a minute or two. So it is not a trivial difference at ordinary time controls! But if running infinite analysis for an hour or more, the different GUI's tend to approach the same long term kN/s speed approximately. (I was using the Shredder 7.04 UCI engine in this particular test.) WP
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