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[Bug-gnubg] Re: Bug-gnubg Digest, Vol 48, Issue 6

From: Frank Berger
Subject: [Bug-gnubg] Re: Bug-gnubg Digest, Vol 48, Issue 6
Date: Mon, 6 Nov 2006 20:27:22 +0100

Message: 10
Date: Mon, 06 Nov 2006 14:27:50 +0100
From: ? ystein Johansen<address@hidden>
Subject: Re: [Bug-gnubg] 50% decrease in evaluation speed

There was also a suggestion of moving the whole neural net
evaluation over to the GPU to let the strong processor in
a modern computer do the hard work. The neural net evaluation
is basically just a matrix multiplication and GPUs are just
made for that. No work has been done thought.
There is a master thesis(?) realted to neural nets on GPU's. didnt was that promising. The setup is so expensive, that it has only a small gain with very large nets. O.k. This article is 1-2 years old so the circumstances may have changed.

So, should we maybe make another benchmark test?
A test that tests all the neural nets, all the databases, and
all input calculations and so on. I guess we'll have to make
set of positions for such a benchmark, and these positions
should then not be selected at random, as todays speed

Good idea. Forward the positions to me and I will come up with the same test.

I suggest a small set of positions:
3 contact
1 running because running is roughly 25% of the positions


6 contact
1 running
1 Bear off db... where with the later it depends a lot on the size of the DB
so the first makes more appropriate to me.

IMHo it makes sense to differentiate with the ply 0/1/2 (or 1/2/3- rest of the world counting)

Caching should be turned of IMHO


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