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by BertTuyt
Mon Jun 01, 2020 18:48
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

Krzysztof thanks for testing.
I will now more focus on the opening book.

Bert
by BertTuyt
Mon Jun 01, 2020 17:33
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

Krzysztof, no changes only a slighter faster emulation of the PEXT instruction, in case the program runs on an AMD processor.
I expect no boost in real performance, so no need for testing.
On a 32 core Threadripper the maximum Damage speed measured was 240 Mega Nodes/second.

Bert
by BertTuyt
Sun May 31, 2020 23:03
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

I uploaded an improved Engine.
The only difference is better performance on an AMD processor.
Further no changes.
Test results with a 32 core Threadripper to be expected soon.

Bert

https://www.dropbox.com/sh/pxqa6zc8bu5o ... WOqua?dl=0
by BertTuyt
Sun May 31, 2020 11:37
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

Krzysztof, thanks for your support. I analyzed the 4 lost games from the 2 min match, see analysis graph below. game analysis.PNG The red line is game 53, here you see a sudden drop in evaluation (between move 25 - 30), so definitely something went wrong, so here i need to dig deeper to understand. ...
by BertTuyt
Sat May 30, 2020 14:52
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

Krzysztof, your welcome.

I'm interested to see the results on you computer when Damage plays against Kingsrow, when Damage uses all available 16 cores.
Both a match of 1 min / 75 moves as 2 min / 75 moves.

Bert
by BertTuyt
Fri May 29, 2020 09:21
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

I posted yesterday a new Engine version. This version detects if the processor is AMD or Intel, and in case of AMD a specific PEXT implementation/emulation is used. A first test on the latest Threadripper (with 32 cores), reveals a speed of 200+ MNodes/seconds. Maybe this value could be further incr...
by BertTuyt
Wed May 27, 2020 20:16
Forum: Draughts, Computer, Internet
Topic: Tests Damage
Replies: 3
Views: 301

Re: Tests Damage

The same field where you enter #perft 11

Bert
by BertTuyt
Wed May 27, 2020 17:42
Forum: Draughts, Computer, Internet
Topic: Tests Damage
Replies: 3
Views: 301

Re: Tests Damage

You should not run in these tests the perft but the standard search.

So first type:
level depth=26

To set the search depth to 26.
And then go to start the search.

Hope this helps,

Bert
by BertTuyt
Wed May 27, 2020 15:04
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

Thanks , think you posted a similar picture in the past.
So not a perft but a normal 26 ply search, with 1 core, so i know the base speed with 1 core and this implementation on your AMD machine.

Bert
by BertTuyt
Wed May 27, 2020 14:17
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

Could you run a test with 1 core and search depth 26, and post a picture. 1 core , change in ini file. in the engine type: level depth=26 go I believe that I suffer much from the PEXT implementation. But at least now the engine recognizes an AMD processor. So I will work the next days in replacing t...
by BertTuyt
Wed May 27, 2020 13:52
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

I think i know what it is, but will check when im home in the evening.
Think you can test anyway.

Bert
by BertTuyt
Mon May 25, 2020 21:27
Forum: Draughts, Computer, Internet
Topic: Damage 15.3
Replies: 134
Views: 17506

Re: Damage 15.3

I uploaded a new Damage Engine (and weights file). The GUI was already changed (very small changes to enable Scan) during the weekend. Krzysztof could you please repeat the test you did (I'm also interested to see if the program runs stable with 16 threads). Bert https://www.dropbox.com/sh/pxqa6zc8b...
by BertTuyt
Mon May 25, 2020 09:29
Forum: Draughts, Computer, Internet
Topic: Internet engine matches
Replies: 470
Views: 164222

Re: Internet engine matches

Krzysztof, thanks for sharing and testing. I will upload in the evening an engine update (also with a new weights file).
Im interested in new test results from your side, hope to get below the 20 ELO points difference compared with Kingsrow.

Bertt
by BertTuyt
Sat May 23, 2020 18:54
Forum: Draughts, Computer, Internet
Topic: Flits self-learning mode
Replies: 82
Views: 3307

Re: Flits self-learning mode

JJ, thanks for your reaction. This will clear the air, appreciated! Some points regarding the Damage strength. The latest version from Damage before the ML, was equal with Kingsrow (before ML), you can also find it on the forum as it was documented, and i shared the pdn files. What is the history re...
by BertTuyt
Sat May 23, 2020 18:37
Forum: Draughts, Computer, Internet
Topic: Flits self-learning mode
Replies: 82
Views: 3307

Re: Flits self-learning mode

Altough Im a little irritated lets focus on the main point. Where do we all agree and where do we all disagree. * If all use open ideas from each other, freely available, and you code it in your own way (so not copy/paste) that is no problem. * It is allowed to use source code as is, if allowed by t...