Current state of compiler differences STOCKFISH

[dangi12012]

BMI2+EVX2 is enabled via settings in the vcxproj.
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I get a ~25% slower executable using that vcxproj

What you mean? cl.exe is 25% slower than using vcxproj - or cl.exe is 25% slower than clang?
Also ENABLING PEXT on a ryzen 1000 or ryzen 2000 would be bad.

[dangi12012]

BMI2+EVX2 is enabled via settings in the vcxproj.
Share with us if you have some news

I get a ~25% slower executable using that vcxproj

You happen to have a Ryzen by chance? PEXT could produce that level of slowdown. I notice your original compilation does not include BMI2.

I can test that. I happen to have a Zen3. When someone has Zen2 we can compare.

[Fulvio]

You happen to have a Ryzen by chance? PEXT could produce that level of slowdown. I notice your original compilation does not include BMI2.

Yes, thanks, I have a Ryzen 3600.
Removing USE_PEXT I get an executable that's just 2% slower compared to when compiled directly from the command line (8% slower than the PGO's one, which is at the moment the fastest I can get with msvc)

[tcusr]

I use this to compile the Stockfish-AVX2 with msvc:

Code: Select all

 cl /std:c++17 /DNDEBUG /DUSE_POPCNT /DUSE_AVX2 /DUSE_SSE41 /DUSE_SSSE3 /DUSE_SSE2  /GS- /MT /O2 /Oi /Ot /Oy /GL /EHsc *.cpp nnue/*.cpp nnue/features/*.cpp syzygy/*.cpp /link /LTCG /STACK:reserve=8388608 /OUT:stockfish.exe advapi32.lib

Anyone have something better?

i just run 'make build' which uses these flags

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-Wall -Wcast-qual -fno-exceptions -std=c++17  -pedantic -Wextra -Wshadow -m64 -DUSE_PTHREADS -DNDEBUG -O3 -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_SSE41 -msse4.1 -DUSE_SSSE3 -mssse3 -DUSE_SSE2 -msse2 -flto

[dangi12012]

I use this to compile the Stockfish-AVX2 with msvc:

Code: Select all

 cl /std:c++17 /DNDEBUG /DUSE_POPCNT /DUSE_AVX2 /DUSE_SSE41 /DUSE_SSSE3 /DUSE_SSE2  /GS- /MT /O2 /Oi /Ot /Oy /GL /EHsc *.cpp nnue/*.cpp nnue/features/*.cpp syzygy/*.cpp /link /LTCG /STACK:reserve=8388608 /OUT:stockfish.exe advapi32.lib

Anyone have something better?

i just run 'make build' which uses these flags

Code: Select all

-Wall -Wcast-qual -fno-exceptions -std=c++17  -pedantic -Wextra -Wshadow -m64 -DUSE_PTHREADS -DNDEBUG -O3 -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_SSE41 -msse4.1 -DUSE_SSSE3 -mssse3 -DUSE_SSE2 -msse2 -flto

Yes we all know how to compile with make gcc/clang/mingw. It was about a comparison to MSVC.

[tcusr]

I use this to compile the Stockfish-AVX2 with msvc:

Code: Select all

 cl /std:c++17 /DNDEBUG /DUSE_POPCNT /DUSE_AVX2 /DUSE_SSE41 /DUSE_SSSE3 /DUSE_SSE2  /GS- /MT /O2 /Oi /Ot /Oy /GL /EHsc *.cpp nnue/*.cpp nnue/features/*.cpp syzygy/*.cpp /link /LTCG /STACK:reserve=8388608 /OUT:stockfish.exe advapi32.lib

Anyone have something better?

i just run 'make build' which uses these flags

Code: Select all

-Wall -Wcast-qual -fno-exceptions -std=c++17  -pedantic -Wextra -Wshadow -m64 -DUSE_PTHREADS -DNDEBUG -O3 -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_SSE41 -msse4.1 -DUSE_SSSE3 -mssse3 -DUSE_SSE2 -msse2 -flto

Yes we all know how to compile with make gcc/clang/mingw. It was about a comparison to MSVC.

sorry i didn't know, i have never programmed on windows