Glaurung 2.0.1 Windows build available

[PauloSoare]

Thanks to Tord and Jim. I am very excited for to test
Glaurung 2.0.1.
And more: For me Tord is a great human being.

Paulo Soares

[Jim Ablett]

Cygwin GCC build. No speed demon, but might just work.

http://www.zshare.net/download/50960996a5c480/

Jim.

[Eelco de Groot]

Loads in Arena, but won't move in a match. Looks like it analyzes ok.

Only got to depth of 9 or 10 in a 1+1 match in Shredder GUI... is that normal?

Depth 9 or 10 seems a bit low, Erik? Glaurung should do about 560 kilonodes per second on a 2 GHz Athlon, on a Quad it should reach more than double that I think? This is the analysis output for the starting position, under ChessPartner 5.4 Glaurung now plays the Philidor defence! (256 Mb HT, Athlon 2009 MHz, 1 thread), the first all processors version with 312832 bytes:

[d]rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

00:00:00.3 0,11 2 46 Nf3 Nf6
00:00:00.3 0,54 3 185 Nf3 Nf6 Nc3
00:00:00.3 0,11 4 369 Nf3 Nf6 Nc3 Nc6
00:00:00.3 0,15 5 771 Nf3 Nf6 Nc3 Nc6 d3
00:00:00.3 0,11 6 1577 Nf3 Nf6 Nc3 Nc6 d3 d6
00:00:00.3 0,25 7 3543 Nf3 Nf6 Nc3 Nc6 e3 d6 Bd3
00:00:00.3 0,11 8 6186 Nf3 Nf6 Nc3 Nc6 e3 e6 Bd3 Bc5
00:00:00.4 0,56 9 20783 Nf3 Nf6 Nc3 Nc6 e3 Nb4 Ne5 Nc6 Nxc6 bxc6
00:00:00.4 0,11 10 35492 Nf3 Nf6 Nc3 Nc6 e3 e5 Bd3 Bc5 O-O O-O
00:00:00.5 0,37 11 84746 Nf3 Nf6 Nc3 e6 e3 Bd6 Bd3 Nc6 O-O O-O Ng5
00:00:00.6 0,45 12 165029 Nf3 Nf6 Nc3 e6 e3 Bd6 Bd3 Nc6 O-O O-O Ng5 Ne5
00:00:00.9 0,11 13 348554 Nf3 Nf6 Nc3 e6 e3 Nc6 Bd3 Bc5 O-O O-O Na4 Bd6 Ng5
00:00:02.2 0,11 14 1034308 Nf3 Nf6 Nc3 e6 e3 Nc6 Bd3 Bc5 O-O O-O Na4 Bb4 Ng5 d5
00:00:03.7 0,23 14 1896048 e4 Nf6 Nc3 Nc6 Nf3 e6 Bb5 Bb4 d3 O-O O-O d5 Bxc6 bxc6 Ne5
00:00:07.2 0,25 15 3838438 e4 Nf6 Nc3 Nc6 Nf3 e6 Bb5 Bb4 d3 O-O O-O d5 Bxc6 bxc6 Ne5 Bb7
00:00:23.4 0,25 16 12849404 e4 e5 Nf3 Nf6 Nc3 Nc6 Bb5 Bc5 O-O O-O Nxe5 Nxe5 d4 c6 dxe5 cxb5 exf6 Qxf6 Nxb5
00:00:37.5 0,25 17 20820260 e4 e5 Nf3 Nf6 Nc3 Nc6 Bb5 Bc5 O-O O-O Nxe5 Nxe5 d4 c6 dxe5 cxb5 exf6 Qxf6 Nxb5
00:01:28.6 0,29 18 49616889 e4 e5 Nf3 Nc6 Bb5 Nf6 O-O Bc5 Nc3 O-O Nxe5 Nxe5 d4 Bd6 dxe5 Bxe5 Bg5 d6
00:02:41.2 0,31 19 90450482 e4 e5 Nf3 Nc6 Bb5 Nf6 O-O Bc5 c3 O-O d4 Be7 Re1 exd4 cxd4 d5 Bxc6 bxc6 Nc3 dxe4 Nxe4 Nd5
00:05:16.0 0,29 20 174827468 e4 e5 Nf3 Nc6 Bb5 Nf6 O-O Bc5 c3 O-O d4 Be7 Re1 exd4 cxd4 d5 Bxc6 bxc6 Nc3 dxe4 Nxe4 Nxe4 Rxe4 Be6
00:10:44.5 0,25 21 360489061 e4 e5 Nf3 Nc6 Bb5 Nf6 O-O Bc5 c3 O-O d4 Be7 d5 Nb8 Nxe5 d6 Nf3 Nxe4 Nbd2 a6 Nxe4 axb5
00:47:09.7 0,25 22 1610168362 e4 e5 Nf3 d6 Nc3 Nf6 Bb5+ Nbd7 d4 exd4 Nxd4 Be7 Nf5 O-O O-O c6 Be2 Nc5 Nxe7+ Qxe7 f3 Be6 Be3 Rac8 Rc1 Rfe8

Have not yet tried playing a match though.

To be honest Tord, I do miss the adjustable Aggressiveness and Cowardice etc. from Glaurung 1 a bit I hope you don't mind me saying so... I hope they will return

Regards, Eelco

Eelco

[Erik Roggenburg]

OK. I feel embarrased. I had permanent brain on in the Shredder GUI. Once I unchecked it, Glaurung was performing as I had expected as far as depth goes.

[Erik Roggenburg]

Werks OK in Arena now.

[swami]

Cygwin GCC build. No speed demon, but might just work.

http://www.zshare.net/download/50960996a5c480/

Jim.

Thanks Jim

This one is working just fine.

[Tony Thomas]

Excellent!

I will wait for a 64-bit build though.

Why? Glaurung hardly gains any speed from 64bit.

That probably depends on your CPU and/or OS. I just compared the speed of the 32-bit and 64-bit binaries on my iMac Core Duo 2.8 GHz, under Mac OS X and Linux (the latter running in a virtual machine under OS X). For the OS X binaries, which were compiled with the Intel compiler, 64-bit gave a speedup of 42.7%. For the Linux binaries, which were compiled with GCC 4.1, the 64-bit speedup was 57.9%.

A speedup around 40-60% probably isn't worth a lot of Elo points, but it is still enough that I understand that people want to wait for the 64-bit version.

Tord

I had no idea that the new Glaurung gained that much speed. I was thinking it only gained around 10%. A speed up of 40-60% should fall in the range of 20-30 point improvement in strength, right?

[Tony Thomas]

Hi Tord,

Thank very much for the new Glaurung release.

The 'divide by zero' bug seems to occur when Glaurung is
in book (using it's own opening book). I get no crashes using
Arena mainbook.

Jim.

Hey Jim, Glaurung doesnt like to use own book here. What's the trick? I put the name book.bin in the UCI options, and that book is from the epsilon 5 version (it never used the book here either).

[Jim Ablett]

Hi Tony,

Hey Jim, Glaurung doesnt like to use own book here. What's the trick?

Glaurung's using it's opening book for me (latest Salvo), but
as I said I'm getting a 'divide by zero' error every so often while
Glaurung plays from it.

Try the cygwin build I posted earlier. http://www.zshare.net/download/50960996a5c480/
This uses the Linux version of the code. If the book works ok in that
build then there maybe a Windows bug that needs fixing.

rgds,
Jim.

[Tony Thomas]

Hi Tony,

Hey Jim, Glaurung doesnt like to use own book here. What's the trick?

Glaurung's using it's opening book for me (latest Salvo), but
as I said I'm getting a 'divide by zero' error every so often while
Glaurung plays from it.

Try the cygwin build I posted earlier. http://www.zshare.net/download/50960996a5c480/
This uses the Linux version of the code. If the book works ok in that
build then there maybe a Windows bug that needs fixing.

rgds,
Jim.

Yes, the Cygwin version does use the book. How much speed loss do you expect from using the cygwin version? I put Glaurung on my que, even though I am a Glaurung fan, I didnt want to be unfair to all the other weak engines on my list. It seems like a windows specific problem, Tord had said something similar when he released epsilon 4, and I think it was Dan who concurred with me.