Computer Chess Club Archives




Subject: Re: PONDER=ON and TableBases on 1 PC

Author: Dann Corbit

Date: 23:49:56 07/27/01

Go up one level in this thread

On July 28, 2001 at 02:21:06, Terry McCracken wrote:
>>I copied the wrong post Dan! He does say one machine!
>*Hyatt/Quote "Nope... no joke at all.  Two programs, one machine, my preference
>is ponder=on.
>>>>>>>both will get 1/2 of the machine and the time controls won't be screwed up."
>Wrong.  That's clearly two machines.  Let me pull out the relevant part so you
>>>can take a gander:
>>>"... I ran a test, gnuchess on a single-cpu, vs crafty on a quad pentium-pro
>>>200, but using only one cpu."
>>>Clearly, he is talking about two different machines
>Yes here he is clearly talking about two machines.
>But the quote above is _one_ machine.

Surely (in that case) he is talking about a two-cpu machine.  He has a machine
with 4 CPU's on it.

I have accidentally ran two programs in ponder on a single CPU machine.  Not
only do they both get blasted, but one is usually better at stealing cycles and
gets 70-80% of the CPU.

If you want to run with ponder on and a single machine, you need to have two
CPU's in it or the results are worthless.

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