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Subject: Re: how to see crafty's tree?

Author: Robert Hyatt

Date: 11:17:16 10/05/98

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On October 05, 1998 at 10:17:08, blass uri wrote:

>
>On October 05, 1998 at 09:28:56, Robert Hyatt wrote:
>
>>On October 05, 1998 at 03:53:31, blass uri wrote:
>>
>>>I can use the command trace to tell crafty to display crafty's tree
>>>but the problem is that it is dispayed too fast and I cannot go back in the
>>>screen
>>>
>>>can I tell crafty to print what it display in the screen or to tell crafty to
>>>stop searching after a fixed number of nodes?
>>>
>>>Uri
>>
>>I don't think this is useful for anything but my own debugging.
>
>It can be useful to understand better how crafty works by seeing an example.
>
>Uri
>
>



Note that in debugging, I hardly ever use this, because I have a hard
time parsing/understanding millions of lines of output.  IE think about a
search that covers 100,000,000 nodes, something I have seen happen many
times in standard games.  That is a *bunch* of output, that no human will
ever be able to cope with...


>  This
>>program searches at about 80K nodes per sec on a P6/200, and nearly 200K
>>nodes per sec on a PII/450.  After 5 seconds you have 1,000,000 lines of
>>output, which is hopeless to scan.
>>
>>I often use it by putting the right commands in a file, like this:
>>
>>sd=4
>>tr 100
>>ponder=off
>>setboard
>>move
>>quit
>>
>>then run crafty:
>>
>>crafty output_file
>>
>>and when it finishes I can edit output_file and poke around in it...



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