Obsidian (DEV)

[cc2150dx]

Jason,

a and b support up to AVX2 only, and should work fine in AVX512 machine. if interested in AVX512 binary, let me know as i can generate one tonight. i just don’t have a machine to test it.

Chris

I was just wondering about what Gabe said:
AVX2a : info depth 28 multipv 1 score cp 26 nodes 30092797 nps 2820582 hashfull 950 tbhits 0 time 10669 pv d2d4
bestmove d2d4
AVX2b : info depth 29 multipv 1 score cp 25 nodes 31575197 nps 2413267 hashfull 955 tbhits 0 time 13084 pv d2d4 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4 d1a4 c7c6 a4c4 b7b5 c4d3 c8b7 a2a4 b5a4 g1f3 c6c5 e1g1 f8e7 c1e3 c5d4 f3d4 b7g2 d3b5 d8d7 g1g2 a7a6 b5a4 e8g8 a4d7
bestmove d2d4

I was assuming AVX2a is AVX2 because the nps is faster ?

[schack]

[quote=schack post_id=975696 time=1737761608 user_id=5142]
Is 14.24 supposed to be significantly slower than 14.23?
[/quote]

Anybody else seeing this?

[cc2150dx]

I think 14.24 is slower because of the net change. I'm assuming net 70 is bigger than net 53. I could be wrong though. And it depends on if you're using Avx2(a) or (b) cause (b) is slower, if that makes sense.

[Chris Formula]

Obsidian 15: https://github.com/gab8192/Obsidian/releases/tag/v15.0

[Jouni]

Bench in i5 prosessor:

official 3658427 nodes 1255034 nps
JAcompile 3658427 nodes 1351968 nps

+7.7% speedup

[Chris Formula]

Obsidian dev-15.01 SE: https://drive.google.com/file/d/1Zl3MMm ... T9iJ0/view

Chris

[Jouni]

I check can You detect speed difference in 500 games? UHO book 40+0.4 level:

Code: Select all

Score of obsidian150JA vs Obsidian15.01SE: 136 - 113 - 251 [0.523]
...      obsidian150JA playing White: 133 - 1 - 116  [0.764] 250
...      obsidian150JA playing Black: 3 - 112 - 135  [0.282] 250
...      White vs Black: 245 - 4 - 251  [0.741] 500
Elo difference: 16.0 +/- 21.5, LOS: 92.8 %, DrawRatio: 50.2 %
500 of 500 games finished.

[Chris Formula]

Obsidian dev-15.03 SE: https://drive.google.com/file/d/1uQh2kZ ... eEYLe/view
this uses net70perm.bin as the default network.

[darmar]

Please make Obsidian dev-15.04

[Chris Formula]

Please make Obsidian dev-15.04

coming shortly