Elephant and pondering

[Olivier Deville]

Geschrieben von:/Posted by: Olivier Deville at 11 April 2004 14:08:21:

On my Win98 computer, Elephant is always ponderint (according to TaskInfo). With WinXP it doesn't. I tried 'easy' and it doesn't help.
Has somebody experienced the same ? Solutions ?
Olivier



ChessWar

[Harald Luessen]

Geschrieben von:/Posted by: Harald Luessen at 12 April 2004 18:47:44:
Als Antwort auf:/In reply to: Elephant and pondering geschrieben von:/posted by: Olivier Deville at 11 April 2004 14:08:21:

On my Win98 computer, Elephant is always ponderint (according to TaskInfo). With WinXP it doesn't. I tried 'easy' and it doesn't help.
Has somebody experienced the same ? Solutions ?
Olivier

That is strange. I have never seen it. But I only have tried WinXP
and Win2000. I looked at the code for 'easy' and it is
else if ( stricmp( command.c_str(), "easy" ) == 0 )
{
// easy
// Turn off pondering
engine.set_pondering( Engine::Ponder_off );
}
The other places with pondering code semm to be right, too.
I think I am only doing pondering when it is allowed with
the command 'hard'. Default is ponder off.
But there are always two threads working: one is collecting the
piped input from winboard. The other is thinking, pondering
or waiting. The main function is an endless loop with a check
for winboard input. May be there is no real wait state
like Sleep( 200 ); or something else in the main thread.
Is this a problem? Does this behaviour fool the taskinfo?
Is there any indication that the next move is better(?)
because of pondering?
Harald