Donna v2.0 released

[Graham Banks]

Gabor,

In v2.0 I bumped up cache from 128MB to 256MB. It's still on my to-do list to make it configurable through UCI options.

-- Michael
-- http://www.dvorkin.net

Being able to configure the hash will be very useful. Thanks for looking at this.

[mid]

No worries, and thanks for suggestion. I do all my development on Mac with no chess GUI. My main testing tool so far was leaving cutechess-cli play overnight with 40/60+1 time control

-- Michael
-- http://www.dvorkin.net

[Graham Banks]

No worries, and thanks for suggestion. I do all my development on Mac with no chess GUI. My main testing tool so far was leaving cutechess-cli play overnight with 40/60+1 time control

-- Michael
-- http://www.dvorkin.net

Nothing to be embarrassed about, Michael.
Donna is a nice little engine. Thanks for sharing it with us.

[Graham Banks]

The problem at present is that Donna's hash usage keeps growing and growing.
It would be great if we could set it for either 128, 256 or higher hash and it would stick around the hash usage selected.
Pretty sure that Donna 1.0 was okay in this regard.

Graham.

[mid]

Graham and Gabor,

Thanks for bringing this to my attention. I think I've tracked it down. I guess I tried to avoid Go's garbage collection overhead a bit too hard

Anyway, I have new version which honors UCI "setoption name Hash value XXX" and adjusts cache size accordingly. In my preliminary tests with 128Mb cache the total RAM size hovers around 300Mb. I am going to let it self-play overnight, will post new builds tomorrow morning PST.

-- Michael
-- http://www.dvorkin.net

[Graham Banks]

Graham and Gabor,

Thanks for bringing this to my attention. I think I've tracked it down. I guess I tried to avoid Go's garbage collection overhead a bit too hard

Anyway, I have new version which honors UCI "setoption name Hash value XXX" and adjusts cache size accordingly. In my preliminary tests with 128Mb cache the total RAM size hovers around 300Mb. I am going to let it self-play overnight, will post new builds tomorrow morning PST.

-- Michael
-- http://www.dvorkin.net

Sounds good.

I guess that if somebody wanted to use around 128mb in ram memory usage, they'd need to set the hash in Donna to 64mb?

[mid]

64Mb cache might bring it down below 256Mb. Realistically speaking 256Mb+ sounds like free RAM requirement to run Donna.

-- Michael
-- http://www.dvorkin.net

[mid]

I've released Donna v2.1, binary builds are now available at: http://donnachess.github.io

New version honors UCI setoption command to adjust cache size and addresses memory consumption issues discovered in v2.0. Couple more links:

Curious minds (source code diff between v2.1 and v2.0): https://github.com/michaeldv/donna/compare/v2.0...v2.1

Popular demand (Windows 32-bit executable): https://github.com/donnachess/donnaches ... ows-32.exe

Enjoy!

-- Michael
-- http://www.dvorkin.net

[Sylwy]

I've released Donna v2.1, binary builds are now available at: http://donnachess.github.io

New version honors UCI setoption command to adjust cache size and addresses memory consumption issues discovered in v2.0. Couple more links:

Curious minds (source code diff between v2.1 and v2.0): https://github.com/michaeldv/donna/compare/v2.0...v2.1

Popular demand (Windows 32-bit executable): https://github.com/donnachess/donnaches ... ows-32.exe

Enjoy!

-- Michael
-- http://www.dvorkin.net

THANK YOU !

SilvianR

[Graham Banks]

I've released Donna v2.1, binary builds are now available at: http://donnachess.github.io

New version honors UCI setoption command to adjust cache size and addresses memory consumption issues discovered in v2.0. Couple more links:

Curious minds (source code diff between v2.1 and v2.0): https://github.com/michaeldv/donna/compare/v2.0...v2.1

Popular demand (Windows 32-bit executable): https://github.com/donnachess/donnaches ... ows-32.exe

Enjoy!

-- Michael
-- http://www.dvorkin.net

Thanks Michael.