Crystal for Android

Skynet · Post by **Skynet** » 05/05/2020, 21:38

flither wrote:This weird position from TalkChess crashes ALL Crystal builds (both from IIvec and JHellis): 7N/pp6/8/8/8/3kpppp/3prqrp/K2Qbbnn w - - 0 1
Maybe these crashes are the price we have to pay for the best tactic solver overall and it can't be fixed without decreasing overall tactic strenght?

PC (exe) engines crashes, or only android? Hmm, seriously, who cares about this position? We will never see it in a normal game..

flither · Post by **flither** » 06/05/2020, 9:32

I don't have PC at the moment but the guy on TalkChess was running this position without problem, so it seems only problem on Android as you said

camava · Post by **camava** » 06/05/2020, 18:40

Skynet wrote:@camava, here is a Crystal made by Joseph Ellis 16 days ago. https://github.com/jhellis3/Stockfish/tree/crystal
I very doubt that it will no crash, but you can try it if you want. It will be another crash test for you..
all flags pgo build
Crystal-200420-arm8-pgo.7z
--------------------------------
non pgo and without popcnt
Crystal-20042020-arm8-lto.7z
-------------------------------
non pgo and without popcnt = optimization set to -O2
Crystal-20042020-O2-arm8-lto.7z
======================================
Btw, is it just me or Crystal crashes after it founds solution?

Hi Skynet
I tested with 3 devices 4 different positions.
pgo. 2/12 crash
lto. 0/12 crash
(2)lto 0/12 crash

2 crash before 1 minute.
No crash til 5 and 15 minutes.

Skynet · Post by **Skynet** » 06/05/2020, 19:58

camava wrote: Hi Skynet
I tested with 3 devices 4 different positions.
pgo. 2/12 crash
lto. 0/12 crash
(2)lto 0/12 crash

2 crash before 1 minute.
No crash til 5 and 15 minutes.

Thanks! So this issue comes from Joseph's engine.

In case if Ivec answer i'll tell him where to look.

Skynet · Post by **Skynet** » 07/05/2020, 18:01

flither wrote:
camava wrote:Hi.
In this position it crash after 3 or 4 seconds

n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - 0 1
This time this position also crashes Crystal 030520 for me, your previous problematic position was fine on my side

Hi flither, camava! Do you still have version of Crystal 030520? If yes, please upload. Ivan has answered..
https://github.com/IIvec/Stockfish/commit/3a152bd98f9bc20bcf17180305d5fc0cd2044b41#diff-0a1f40fc150a973726797865e772a344R471

Skynet · Post by **Skynet** » 07/05/2020, 19:09

Skynet wrote: Hi flither, camava! Do you still have version of Crystal 030520? If yes, please upload. Ivan has answered..
https://github.com/IIvec/Stockfish/commit/3a152bd98f9bc20bcf17180305d5fc0cd2044b41#diff-0a1f40fc150a973726797865e772a344R471

No longer needed, I gave older version..

camava · Post by **camava** » 07/05/2020, 19:39

Skynet wrote:
Skynet wrote: Hi flither, camava! Do you still have version of Crystal 030520? If yes, please upload. Ivan has answered..
https://github.com/IIvec/Stockfish/commit/3a152bd98f9bc20bcf17180305d5fc0cd2044b41#diff-0a1f40fc150a973726797865e772a344R471
No longer needed, I gave older version..

Hi.
No.
I don't have it.
I deleted it after several crashs

I hope Ivan can solve the Android Crystal chess engine problem...

flither · Post by **flither** » 07/05/2020, 20:18

If you will need it just in case - https://www.dropbox.com/s/h3mb9vuus53jx5u/Crystal-030520-arm8-pgo?dl=0

Skynet · Post by **Skynet** » 10/07/2020, 5:31

Crystal 080720

If engine still crashing in some positions, it is not my fault..

Crystal-080720-arm7-pgo.7z

Crystal-080720-arm8-pgo.7z

Skynet · Post by **Skynet** » 11/09/2020, 14:43

Crystal-3.0 by Joseph Ellis https://github.com/jhellis3/Stockfish/releases/tag/v3.0

ARM7 https://www.mirrored.to/files/PFCADW80/Crystal-3.0-arm7.7z_links

ARM8-pgo https://www.mirrored.to/files/H0F7ERYR/Crystal-3.0-arm8-pgo.7z_links

Note: Engine is not for tournaments, only for analysis. And yes, it is still buggy, may crash on some positions.

► Show Spoiler

Skynet · Post by **Skynet** » 30/09/2020, 16:56

Crystal-290920 NNUE by Joseph Ellis, embedded net nn-202008141035.nnue https://github.com/jhellis3/Stockfish/tree/crystal
Same engine notes as in the previous posts.

Arm7 https://www.mirrored.to/files/11FXWYYW/Crystal-290920-arm7.7z_links

Arm8 https://www.mirrored.to/files/1AC3WAHP/Crystal-290920-arm8.7z_links

Skynet · Post by **Skynet** » 18/11/2020, 22:26

Crystal 081120 by Joseph Ellis https://github.com/jhellis3/Stockfish/commit/547a5cce5662ffce183f3bee7d0f2d6de5724f5d

Arm7-Arm8 https://pixeldrain.com/l/YxYddgHr#item=0

Skynet · Post by **Skynet** » 19/11/2020, 23:28

Skynet wrote:Crystal 081120 by Joseph Ellis https://github.com/jhellis3/Stockfish/commit/547a5cce5662ffce183f3bee7d0f2d6de5724f5d

Arm7-Arm8 https://pixeldrain.com/l/YxYddgHr#item=0

Without embedded network, arm7 = 3.38 mb / arm8 = 5.17 mb. As usual, engine is still crashing on some positions.

https://pixeldrain.com/l/S8QyxuAt#item=0

leonhurricaneX · Post by **leonhurricaneX** » 20/11/2020, 4:38

Skynet wrote:
Skynet wrote:Crystal 081120 by Joseph Ellis https://github.com/jhellis3/Stockfish/commit/547a5cce5662ffce183f3bee7d0f2d6de5724f5d

Arm7-Arm8 https://pixeldrain.com/l/YxYddgHr#item=0
Without embedded network, arm7 = 3.38 mb / arm8 = 5.17 mb. As usual, engine is still crashing on some positions.
https://pixeldrain.com/l/S8QyxuAt#item=0

I have reduced the size of your builds now they much smaller ARM-8 (~916 kb) & ARM-7 (~572 kb) hope you don't mind it.

Arm7- https://www.dropbox.com/s/5ec1yjeyv1cqyeb/Crystal-081120a-arm7.7z?dl=0

Arm8- https://www.dropbox.com/s/1ypykjsr8zdej3a/Crystal-081120a-arm8.7z?dl=0

Skynet · Post by **Skynet** » 06/12/2020, 0:09

Crystal 011220 by MichaelB7 https://github.com/MichaelB7/Stockfish/tree/crystal
Unfortunately engine still crashing in some positions.

ARM8 with embedded net https://pixeldrain.com/u/qbZNE18L

Outskirts CheSS ForuM

Outskirts CheSS ForuM