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Added support for building without MKL #4147

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stemann wants to merge 2 commits into from
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Added support for building without MKL #4147

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2adce16
Added support for building without MKL
stemann Jan 28, 2025
7055fb7
Merge branch 'main' into feature/mkl_optional
stemann Jan 28, 2025
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1 change: 1 addition & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,7 @@ option(FAISS_OPT_LEVEL "" "generic")
option(FAISS_ENABLE_GPU "Enable support for GPU indexes." ON)
option(FAISS_ENABLE_CUVS "Enable cuVS for GPU indexes." OFF)
option(FAISS_ENABLE_ROCM "Enable ROCm for GPU indexes." OFF)
option(FAISS_ENABLE_MKL "Enable MKL." ON)
option(FAISS_ENABLE_PYTHON "Build Python extension." ON)
option(FAISS_ENABLE_C_API "Build C API." OFF)
option(FAISS_ENABLE_EXTRAS "Build extras like benchmarks and demos" ON)
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4 changes: 3 additions & 1 deletion faiss/CMakeLists.txt
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Expand Up @@ -372,7 +372,9 @@ target_link_libraries(faiss_avx512 PRIVATE OpenMP::OpenMP_CXX)
target_link_libraries(faiss_avx512_spr PRIVATE OpenMP::OpenMP_CXX)
target_link_libraries(faiss_sve PRIVATE OpenMP::OpenMP_CXX)

find_package(MKL)
if(FAISS_ENABLE_MKL)
find_package(MKL)
endif()
if(MKL_FOUND)
target_link_libraries(faiss PRIVATE ${MKL_LIBRARIES})
target_link_libraries(faiss_avx2 PRIVATE ${MKL_LIBRARIES})
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