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Subject: Re: How to play games between different versions of Crafty

Author: Michel Langeveld

Date: 12:54:17 01/21/00

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On January 21, 2000 at 15:36:15, Robert Hyatt wrote:

>On January 21, 2000 at 15:15:39, Jeremiah Penery wrote:
>
>>On January 21, 2000 at 14:56:16, Robert Hyatt wrote:
>>
>>>On January 21, 2000 at 13:17:25, Rafael Villarroel wrote:
>>>
>>>>If playing games between different versions of Crafty
>>>>under Winboard, is it ok to have both versions in the same directory?
>>>>I mean, could there be problems because of accesing the book,
>>>>writing learn or log files, etc?
>>>>Rafael
>>>
>>>
>>>Probably.  Use the option in winboard that lets you specify a different
>>>starting directory for each version.  Then you install the executable and
>>>book files in the two directories and avoid the problems with both trying
>>>to update a learn file at the same time and corrupting it.
>>>
>>>IE if position.bin gets corrupted, it will hang crafty when it tries to use
>>>it.
>>
>>I'm not saying that it's a good thing to do, or that it won't ever cause
>>problems, but I've never had any problems running two crafties against each
>>other out of the same directory, using all the same files.
>>
>>YMMV, of course.
>>
>>Jeremiah
>
>
>The danger is learning.  Turn it off and there won't be any problems, except
>for missing log files here and there.  But with learning on, I don't take any
>precautions like file locking, to prevent simultaneous updating.  Which would
>be ugly when/if it happens...  as the file will definitely become corrupted.
>
>It might just mean it leaves book earlier than it should.  Or it might hang
>if the file gets corrupted in a different way.

Can't this be fixed in the next version of Crafty?? IE Network Support.



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