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Subject: Re: " D e e p - I m p a c t " Swiss 30 rounds, round 18

Author: Per Jørgensen

Date: 06:59:05 11/04/05

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Hi Wilhelm!

Thanks for your results. They are very interesting. The reason I'm writing you
is that I am considering to buy an AMD Dual Core CPU (if you want to you can
check what I wrote earlier today under the Subject "Which CPU should I buy?"). I
can see that you are testing with an AMD Dual Core and I would be delighted if
you would tell about your experience with this CPU :-) Here are my questions:

1) What's your general opinion of your CPU? Are you satisfied?

2) I can see you are testing with Pondern OFF. Why? You have two cores in your
CPU and therefore you should be able to test with permanent brain ON.

3) I have another question concerning the AMD Dual Core CPU: Let's assume that I
am having two engines (and not Deep-Versions!) playing against each other. Does
it then make a difference for each engine if I am playing Pondern ON or OFF
concerning the CPU Power?? I would say no because I'd guess that each engine is
using one Core (again under the condition that it is not a Deep Version) and
this is independent of Pondern ON/OFF.

In order to make a detailed answer on question 3 it would be very Great if you
would do the following test (I know that not only me but many Computerchessfans
would be very interested in knowing the result of this test):

Let's do the test with Shredder 9 and Fritz 9. Pick out a random position from
the middlegame. We start with the Pondern OFF option. The time level doesn't
matter a lot but choose something like 10 min. for the whole game. Now, start
the game from this middlegameposition and observe the average number of
positions the two engines are doing when they are thinking. It's hard to this
precisely but it's not important. Then write down these average numbers after a
couple of moves (just approximately, maybe 600.000 for Shredder 9 and more than
a million for Fritz 9). Now, repeat the experiment with Pondern ON. How are the
average numbers now? Are they approximately the same or are they lower? Exactly
this question I find very, very interesting and important. I will be very, very
delighted if you would do this small test and write me the results here in this
Forum :-)

Best regards and a very nice weekend for you

Per



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