Obsidian (DEV)

[Jouni]

Thanks. STC test with 3 books:

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1   Obsidian14.05   +11  +83/=453/-64 51.58%  309.5/600
2   Obsidian140     -11  +64/=453/-83 48.42%  290.5/600

[chesskobra]

Anybody else gets these errors in nopgo compile on linux? I can compile without the nopgo option.

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/usr/bin/ld: /tmp/cclFnJJz.ltrans0.ltrans.o: in function `int Search::Thread::qsearch<true>(Position&, int, int, int, Search::SearchInfo*)':
<artificial>:(.text+0x96a8): undefined reference to `MovePicker::MovePicker(MovePicker::SearchType, Position&, int, int, int, short (&) [2][4096], short (&) [1024][8], int, Search::SearchInfo*)'
/usr/bin/ld: /tmp/cclFnJJz.ltrans0.ltrans.o: in function `int Search::Thread::qsearch<false>(Position&, int, int, int, Search::SearchInfo*)':
<artificial>:(.text+0xa68a): undefined reference to `MovePicker::MovePicker(MovePicker::SearchType, Position&, int, int, int, short (&) [2][4096], short (&) [1024][8], int, Search::SearchInfo*)'
/usr/bin/ld: /tmp/cclFnJJz.ltrans0.ltrans.o: in function `int Search::Thread::negamax<false>(Position&, int, int, int, bool, Search::SearchInfo*, int)':
<artificial>:(.text+0x1603a): undefined reference to `MovePicker::MovePicker(MovePicker::SearchType, Position&, int, int, int, short (&) [2][4096], short (&) [1024][8], int, Search::SearchInfo*)'
/usr/bin/ld: <artificial>:(.text+0x16583): undefined reference to `MovePicker::MovePicker(MovePicker::SearchType, Position&, int, int, int, short (&) [2][4096], short (&) [1024][8], int, Search::SearchInfo*)'
/usr/bin/ld: /tmp/cclFnJJz.ltrans0.ltrans.o: in function `int Search::Thread::negamax<true>(Position&, int, int, int, bool, Search::SearchInfo*, int) [clone .constprop.0]':
<artificial>:(.text+0x18760): undefined reference to `MovePicker::MovePicker(MovePicker::SearchType, Position&, int, int, int, short (&) [2][4096], short (&) [1024][8], int, Search::SearchInfo*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:78: nopgo] Error 1

[cpeters]

No.

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Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 12.2.0-14' --with-bugurl=file:///usr/share/doc/gcc-12/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-12 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-12-bTRWOB/gcc-12-12.2.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-12-bTRWOB/gcc-12-12.2.0/debian/tmp-gcn/usr --enable-offload-defaulted --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.2.0 (Debian 12.2.0-14)

[Jouni]

Version 14.05 also solves test positions clearly faster than 14.0. Surprising with only minor changes.

[Dann Corbit]

In order to do pgo on Windows, I needed to add the local folder like this:
ifeq ($(OS),Windows_NT)
EXE := ./Obsidian.exe
else
EXE := Obsidian
endif

If you have exported . into your path, you won't need to do that.

[Chris Formula]

Obsidian dev-14.06 SE: https://drive.google.com/file/d/1xiiYkq ... UgPTt/view

Changes: https://github.com/gab8192/Obsidian/commits/main/

[Jouni]

60 + 0,6 and HERT book:

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1   Obsidian140   +9/=182/-9 50.00%  100.0/200
2   Obsidian1406  +9/=182/-9 50.00%  100.0/200

[Chris Formula]

Obsidian dev-14.07 SE: https://drive.google.com/file/d/1ItrQXV ... rS41d/view

Changes: https://github.com/gab8192/Obsidian/commits/main/

[Damir]

Hi Chris

Can you make a compile of Lizard Chess Engine?

Some changes were made a week or so ago.

The link to the engine you can find here:

https://github.com/liamt19/Lizard

[Chris Formula]

Hi Chris

Can you make a compile of Lizard Chess Engine?

Some changes were made a week or so ago.

The link to the engine you can find here:

https://github.com/liamt19/Lizard

Hi Damir,

Thanks for sharing the info. It looks like the code is in C# so I won’t be able to help in compiling Lizard, another promising engine. I would recommend opening another thread for Lizard to see if some members in this forum may be able to help.

Sorry Damir!

Chris