xbord 4.4.0 (Mac) and -matchGames

[H.G.Muller]

Oh yes, it is a bug in both WinBoard and XBoard (this is code from the common back-end). I am just surprised that it never hit me. I would not call 256 open files very restricive, but for each book miss, one file is opened. So 256 sounds about good for 2-3 games, if both players use the book.

When I used Unix as a student you could have only 16 open files! My favorite trick of becoming super-user ("root") was based on this: open 16 files before calling "su" (the predecessor of "sudo"), so that it could not open the password file...

[schlucke]

Oh yes, it is a bug in both WinBoard and XBoard (this is code from the common back-end). I am just surprised that it never hit me. I would not call 256 open files very restricive, but for each book miss, one file is opened. So 256 sounds about good for 2-3 games, if both players use the book.

What is the default in common Linux distributions? 1024, 2048 or even more ... I think. So what you/we shoul learn? Don't test under Windows only

When I used Unix as a student you could have only 16 open files! My favorite trick of becoming super-user ("root") was based on this: open 16 files before calling "su" (the predecessor of "sudo"), so that it could not open the password file...

That on is good

[schlucke]

This time in runs perfectly, thanks! Four runs with each six games ... no error!

Code: Select all

                             Score     123456789012345678901234
----------------------------------------------------------------
 1: Shredder 12 x64        14.5 / 24   1=0==10=1===1===1011==1=
 2: Stockfish 1.5.1 64bit   9.5 / 24   0=1==01=0===0===0100==0=
----------------------------------------------------------------
24 games: +4 =13 -7


Not bad for an open source engine!

Holger