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Subject: Re: Intel Hyperthreading and Ponder (Permanent Brain)

Author: Luis Smith

Date: 07:35:40 01/02/04

Go up one level in this thread


On January 02, 2004 at 10:31:23, Jasmine Baer wrote:

>On January 02, 2004 at 10:21:48, Luis Smith wrote:
>
>>On January 02, 2004 at 09:57:38, Jasmine Baer wrote:
>>
>>>I've seen it written that under the following conditions:
>>>
>>>1.  Engine vs. Engine match or tournament
>>>2.  Held on a single computer with a single processor
>>>
>>>having ponder=ON(or Permanent Brain in the Fritz GUI) will impact the play of
>>>the engines since the each individual engine would not have full access to the
>>>processor during its own turn.
>>>
>>>First, is this true?
>>>
>>>Second, is this issue, if it actually is an issue, something that is eliminated
>>>by running a two-processor system?
>>>
>>>And, finally, does anyone have any solid insight on how ponder=off/on or
>>>Permanent Brain works on a Pentium 4 with Hyperthreading?
>>>
>>>Thanks.
>>
>>No need, someone has already run this test.  Click on "Winboard" and then
>>"Ponder Experiment" on the side
>>
>>http://www.pittlik.de/winboard.html
>
>Am I reading the time control corrctly?  60+2 meaning 60 minutes plus 2 seconds
>per move?  The reason I ask is because above the tables, there are links to some
>downloads - 1320 Lightning Games etc., etc.  60 minutes + 2 sec/move is not a
>lightning time control.  Could I be misinterpreting the 60+2?  Should I be
>thinking that 60+2 means 60 seconds plus 2 seconds per move?

60 seconds with 2 second increments.



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