Search found 8015 matches

by Dann Corbit
Wed Jun 19, 2019 7:58 am
Forum: Computer Chess Club: General Topics
Topic: Where are the funs of Leela?
Replies: 70
Views: 3178

Re: Where are the funs of Leela?

If they figure out how to get GPU cards the do alpha beta, or they get GPU cards to do full recursion without wait, then the Alpha beta searcher engines will mop the floor with the NN engines, laughing all the way to the bank. The compute cycles of the GPU cards are orders of magnitude higher than t...
by Dann Corbit
Tue Jun 18, 2019 7:04 pm
Forum: Computer Chess Club: General Topics
Topic: Is Blas, or OpenCL really the right way to go
Replies: 11
Views: 421

Re: Is Blas, or OpenCL really the right way to go

Also interesting is the cost per dollar calculation for various cards here:
https://timdettmers.com/2019/04/03/whic ... -learning/
by Dann Corbit
Tue Jun 18, 2019 7:02 pm
Forum: Computer Chess Club: General Topics
Topic: Is Blas, or OpenCL really the right way to go
Replies: 11
Views: 421

Re: Is Blas, or OpenCL really the right way to go

It is an important and interesting question.
Here is a benchmark link for various blas type bundles:
https://medium.com/datathings/benchmark ... 57fb1c6dc7
by Dann Corbit
Tue Jun 18, 2019 12:18 am
Forum: Computer Chess Club: General Topics
Topic: Leela, such a great engine (and innovation)?
Replies: 40
Views: 2263

Re: Leela, such a great engine (and innovation)?

I think it was clear who was the best in several time periods (even if, as you said, it didn't coincide with who was champion), and we didn't need hundreds of thousands of games to know. I have never said one hundred thousand games are necessary. If there is decent separation in the real strength a...
by Dann Corbit
Mon Jun 17, 2019 11:57 pm
Forum: Computer Chess Club: General Topics
Topic: Where are the funs of Leela?
Replies: 70
Views: 3178

Re: Where are the funs of Leela?

It does not really matter if there is a mate inside the book line on the way to the book exit point if both engines play the same opening and then reverse it. First, we are not trying to discover the strongest chess lines. Contests like Sedat's book tournaments {attempt to} discover the best opening...
by Dann Corbit
Mon Jun 17, 2019 11:47 pm
Forum: Computer Chess Club: General Topics
Topic: Leela, such a great engine (and innovation)?
Replies: 40
Views: 2263

Re: Leela, such a great engine (and innovation)?

How many of those were the best players in the world at the time they were champions? That is an important illustration between what a champion is and who the best player is. Are you saying we never knew who was the best player in the world in any time period because it was never proven scientifica...
by Dann Corbit
Sat Jun 15, 2019 5:06 am
Forum: Computer Chess Club: General Topics
Topic: New hard positions since January
Replies: 6
Views: 327

Re: New hard positions since January

Dann Corbit wrote:
Sat Jun 15, 2019 5:05 am
Vinvin wrote:
Fri Jun 14, 2019 10:40 am
I still have to dig in this set : viewtopic.php?f=2&t=69687
I have analyzed all of them. I have different answers for about half
by Dann Corbit
Sat Jun 15, 2019 5:05 am
Forum: Computer Chess Club: General Topics
Topic: New hard positions since January
Replies: 6
Views: 327

Re: New hard positions since January

Vinvin wrote:
Fri Jun 14, 2019 10:40 am
I still have to dig in this set : viewtopic.php?f=2&t=69687
by Dann Corbit
Fri Jun 14, 2019 12:15 am
Forum: Computer Chess Club: General Topics
Topic: Pre-Release McCain X4
Replies: 22
Views: 1093

Re: Pre-Release McCain X4

I am not a fan of the "LC0 style scoring." Worse, you cannot turn it off when it sees a win. I chose ce in the UCI options. Analyzing this position: 8/8/3R3K/P7/8/4ppk1/8/8 w - - I get this: Avoid move: Best move (McCain-X4-modern-64): Rd6-g6 Not found in: 01:00 Found 510 tablebases 1/2 00:01 108 10...
by Dann Corbit
Thu Jun 13, 2019 4:11 pm
Forum: Computer Chess Club: General Topics
Topic: Pre-Release McCain X4
Replies: 22
Views: 1093

Re: Pre-Release McCain X4

Probably needs an aligned allocation. Objects can be different sizes because of the OS and compiler. For instance, with GCC on a 64 bit Linux, long is 8 bytes but on 64 bit windows it is 4 bytes. I didn't even look at the code yet so this is a guess. Strange that an assert was used since it sounds l...