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Xu update cmake build options for linux #833

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@xuhancn xuhancn commented Nov 15, 2023 •
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original build option from makefile:

gcc -DNDEBUG -DLIBXSMM_NOFORTRAN -DLIBXSMM_TARGET_ARCH=1006 -DLIBXSMM_OPENMP_SIMD -DLIBXSMM_BUILD=2 -Iinclude -I./src -msse4.2 -fPIC -Wall -O2 -fopenmp-simd -funroll-loops -ftree-vectorize -fdata-sections -ffunction-sections -fvisibility=hidden -pthread -Werror -c ./src/generator_mateltwise.c -o obj/intel64/generator_mateltwise.o

ported to cmake build:

/usr/bin/cc -DLIBXSMM_BUILD=2 -DLIBXSMM_DEFAULT_CONFIG -DLIBXSMM_NOFORTRAN -DLIBXSMM_OPENMP_SIMD -DLIBXSMM_TARGET_ARCH=1006 -DNDEBUG -I/home/xu/github/xu_libxsmm/libxsmm/include -I/home/xu/github/xu_libxsmm/libxsmm/src -fPIC -Wall -O2 -fopenmp-simd -funroll-loops -ftree-vectorize -fdata-sections -ffunction-sections -fvisibility=hidden -pthread -Werror -MD -MT CMakeFiles/xsmm.dir/src/generator_mateltwise.c.o -MF CMakeFiles/xsmm.dir/src/generator_mateltwise.c.o.d -o CMakeFiles/xsmm.dir/src/generator_mateltwise.c.o -c /home/xu/github/xu_libxsmm/libxsmm/src/generator_mateltwise.c

@xuhancn xuhancn marked this pull request as draft November 15, 2023 05:43
@xuhancn xuhancn marked this pull request as ready for review November 15, 2023 05:49
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xuhancn commented Nov 15, 2023

@alheinecke please review it.

alheinecke
alheinecke requested changes Nov 15, 2023
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It seems the changes are based on "make reaclean && make" on some system and then options are copied over. However, the actual logic in Makefile and Makefile.inc needs to be ported over.

CMakeLists.txt

add_definitions(-DLIBXSMM_DEFAULT_CONFIG -U_DEBUG)
if(NOT MSVC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
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Flags (incl. arch SSE4, AVX, etc.) should be read from parameters as in case of using make, default should be sse4.2. Same is for options like PEDANTIC, OMP, SIMD, etc.

CMakeLists.txt

add_definitions(-DLIBXSMM_DEFAULT_CONFIG)
add_definitions(-DNDEBUG)
add_definitions(-DLIBXSMM_NOFORTRAN)
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Same as compiler knobs, these defines need to be discovered by the build system and not just set.

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@xuhancn @alheinecke