Author: William Penn
Date: 21:20:06 03/14/04
Go up one level in this thread
On March 14, 2004 at 23:06:29, Robert Hyatt wrote: >On March 13, 2004 at 16:43:23, F. Huber wrote: > >>On March 13, 2004 at 14:23:15, Dieter Buerssner wrote: >> >>>On March 13, 2004 at 11:46:51, F. Huber wrote: >>> >>>>So what will you be trying next (and the software should take care of)? >>>>Adding or removing memory modules, while the computer in ON >>>>and Windows is running? ;-) >>>>And then writing here again:"Windows bug - system crashes if ..." >>> >>>I don't see too much similarity in your example and the original problem. I >>>think, the software should take care there. The main difference is: the software >>>itself allows you to change the hash, so it is under its control (unlike a >>>hardware change). Also, for example the UCI protocol explicetly disallows the >>>setoption command during search. If you change any parameter the search will be >>>stopped, and then new parameters (for example hash size) are sent to the engine. >>>In my experience, this works well under Shredder Classic. It allows seemingly to >>>change parameters during analysis, but stops the search, before they are really >>>changed. >>> >>>Regards, >>>Dieter >> >>Of course you can do whatever you want when running any software, >>but one thing should be clear: >>If you do a stupid action, don´t wonder about a stupid REaction! ;-) >> >>Regards, >>Franz. > > >I agree > >Changing the hash size in the middle of a search goes _beyond_ idiocy. > >Why? > >How can it work? > >Table entries are at the right location. If you change the hash size, suddenly >they are at the wrong location as we would have used more bits for the table >address. Do you move every entry? Might be impossible. Do you store the >entire 64 bit hash signature? I do. Not everybody does. > >The idea is just ridiculous from the get-go. :) This hash resizing bug happens even if the engine is turned off. Not usually, but sometimes it does. I just had it happen under those circumstances. I thought that might be a possible workaround, and it worked OK several times, but then it crashed the GUI again (fatal exception). I note that this hash resizing bug did NOT happen with the prior version of the GUI, nor with any other GUI's that I have ever tried. Only with the Shredder 8 GUI! WP
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