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# Copyright (c) Facebook, Inc. and its affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
set(FAISS_SRC
AutoTune.cpp
Clustering.cpp
IVFlib.cpp
Index.cpp
Index2Layer.cpp
IndexAdditiveQuantizer.cpp
IndexBinary.cpp
IndexBinaryFlat.cpp
IndexBinaryFromFloat.cpp
IndexBinaryHNSW.cpp
IndexBinaryHash.cpp
IndexBinaryIVF.cpp
IndexFlat.cpp
IndexFlatCodes.cpp
IndexHNSW.cpp
IndexIDMap.cpp
IndexIVF.cpp
IndexIVFAdditiveQuantizer.cpp
IndexIVFFlat.cpp
IndexIVFPQ.cpp
IndexIVFFastScan.cpp
IndexIVFAdditiveQuantizerFastScan.cpp
IndexIVFPQFastScan.cpp
IndexIVFPQR.cpp
IndexIVFSpectralHash.cpp
IndexLSH.cpp
IndexNNDescent.cpp
IndexLattice.cpp
IndexNSG.cpp
IndexPQ.cpp
IndexFastScan.cpp
IndexAdditiveQuantizerFastScan.cpp
IndexIVFIndependentQuantizer.cpp
IndexPQFastScan.cpp
IndexPreTransform.cpp
IndexRefine.cpp
IndexReplicas.cpp
IndexRowwiseMinMax.cpp
IndexScalarQuantizer.cpp
IndexShards.cpp
IndexShardsIVF.cpp
MatrixStats.cpp
MetaIndexes.cpp
VectorTransform.cpp
clone_index.cpp
index_factory.cpp
impl/AuxIndexStructures.cpp
impl/CodePacker.cpp
impl/IDSelector.cpp
impl/FaissException.cpp
impl/HNSW.cpp
impl/NSG.cpp
impl/PolysemousTraining.cpp
impl/ProductQuantizer.cpp
impl/AdditiveQuantizer.cpp
impl/ResidualQuantizer.cpp
impl/LocalSearchQuantizer.cpp
impl/ProductAdditiveQuantizer.cpp
impl/ScalarQuantizer.cpp
impl/index_read.cpp
impl/index_write.cpp
impl/io.cpp
impl/kmeans1d.cpp
impl/lattice_Zn.cpp
impl/pq4_fast_scan.cpp
impl/pq4_fast_scan_search_1.cpp
impl/pq4_fast_scan_search_qbs.cpp
impl/residual_quantizer_encode_steps.cpp
impl/io.cpp
impl/lattice_Zn.cpp
impl/NNDescent.cpp
invlists/BlockInvertedLists.cpp
invlists/DirectMap.cpp
invlists/InvertedLists.cpp
invlists/InvertedListsIOHook.cpp
utils/Heap.cpp
utils/WorkerThread.cpp
utils/distances.cpp
utils/distances_simd.cpp
utils/extra_distances.cpp
utils/hamming.cpp
utils/partitioning.cpp
utils/quantize_lut.cpp
utils/random.cpp
utils/sorting.cpp
utils/utils.cpp
utils/distances_fused/avx512.cpp
utils/distances_fused/distances_fused.cpp
utils/distances_fused/simdlib_based.cpp
)
set(FAISS_HEADERS
AutoTune.h
Clustering.h
IVFlib.h
Index.h
Index2Layer.h
IndexAdditiveQuantizer.h
IndexBinary.h
IndexBinaryFlat.h
IndexBinaryFromFloat.h
IndexBinaryHNSW.h
IndexBinaryHash.h
IndexBinaryIVF.h
IndexFlat.h
IndexFlatCodes.h
IndexHNSW.h
IndexIDMap.h
IndexIVF.h
IndexIVFAdditiveQuantizer.h
IndexIVFIndependentQuantizer.h
IndexIVFFlat.h
IndexIVFPQ.h
IndexIVFFastScan.h
IndexIVFAdditiveQuantizerFastScan.h
IndexIVFPQFastScan.h
IndexIVFPQR.h
IndexIVFSpectralHash.h
IndexLSH.h
IndexLattice.h
IndexNNDescent.h
IndexNSG.h
IndexPQ.h
IndexFastScan.h
IndexAdditiveQuantizerFastScan.h
IndexPQFastScan.h
IndexPreTransform.h
IndexRefine.h
IndexReplicas.h
IndexRowwiseMinMax.h
IndexScalarQuantizer.h
IndexShards.h
IndexShardsIVF.h
MatrixStats.h
MetaIndexes.h
MetricType.h
VectorTransform.h
clone_index.h
index_factory.h
index_io.h
impl/AdditiveQuantizer.h
impl/AuxIndexStructures.h
impl/CodePacker.h
impl/IDSelector.h
impl/DistanceComputer.h
impl/FaissAssert.h
impl/FaissException.h
impl/HNSW.h
impl/LocalSearchQuantizer.h
impl/ProductAdditiveQuantizer.h
impl/LookupTableScaler.h
impl/NNDescent.h
impl/NSG.h
impl/PolysemousTraining.h
impl/ProductQuantizer-inl.h
impl/ProductQuantizer.h
impl/Quantizer.h
impl/ResidualQuantizer.h
impl/ResultHandler.h
impl/ScalarQuantizer.h
impl/ThreadedIndex-inl.h
impl/ThreadedIndex.h
impl/io.h
impl/io_macros.h
impl/kmeans1d.h
impl/lattice_Zn.h
impl/platform_macros.h
impl/pq4_fast_scan.h
impl/residual_quantizer_encode_steps.h
impl/simd_result_handlers.h
impl/code_distance/code_distance.h
impl/code_distance/code_distance-generic.h
impl/code_distance/code_distance-avx2.h
invlists/BlockInvertedLists.h
invlists/DirectMap.h
invlists/InvertedLists.h
invlists/InvertedListsIOHook.h
utils/AlignedTable.h
utils/Heap.h
utils/WorkerThread.h
utils/distances.h
utils/extra_distances-inl.h
utils/extra_distances.h
utils/fp16-fp16c.h
utils/fp16-inl.h
utils/fp16-arm.h
utils/fp16.h
utils/hamming-inl.h
utils/hamming.h
utils/ordered_key_value.h
utils/partitioning.h
utils/prefetch.h
utils/quantize_lut.h
utils/random.h
utils/sorting.h
utils/simdlib.h
utils/simdlib_avx2.h
utils/simdlib_emulated.h
utils/simdlib_neon.h
utils/utils.h
utils/distances_fused/avx512.h
utils/distances_fused/distances_fused.h
utils/distances_fused/simdlib_based.h
utils/approx_topk/approx_topk.h
utils/approx_topk/avx2-inl.h
utils/approx_topk/generic.h
utils/approx_topk/mode.h
utils/approx_topk_hamming/approx_topk_hamming.h
utils/transpose/transpose-avx2-inl.h
utils/hamming_distance/common.h
utils/hamming_distance/generic-inl.h
utils/hamming_distance/hamdis-inl.h
utils/hamming_distance/neon-inl.h
utils/hamming_distance/avx2-inl.h
)
if(NOT WIN32)
list(APPEND FAISS_SRC invlists/OnDiskInvertedLists.cpp)
list(APPEND FAISS_HEADERS invlists/OnDiskInvertedLists.h)
endif()
# Export FAISS_HEADERS variable to parent scope.
set(FAISS_HEADERS ${FAISS_HEADERS} PARENT_SCOPE)
add_library(faiss ${FAISS_SRC})
add_library(faiss_avx2 ${FAISS_SRC})
if(NOT FAISS_OPT_LEVEL STREQUAL "avx2" AND NOT FAISS_OPT_LEVEL STREQUAL "avx512")
set_target_properties(faiss_avx2 PROPERTIES EXCLUDE_FROM_ALL TRUE)
endif()
if(NOT WIN32)
target_compile_options(faiss_avx2 PRIVATE $<$<COMPILE_LANGUAGE:CXX>:-mavx2 -mfma -mf16c -mpopcnt>)
else()
# MSVC enables FMA with /arch:AVX2; no separate flags for F16C, POPCNT
# Ref. FMA (under /arch:AVX2): https://docs.microsoft.com/en-us/cpp/build/reference/arch-x64
# Ref. F16C (2nd paragraph): https://walbourn.github.io/directxmath-avx2/
# Ref. POPCNT: https://docs.microsoft.com/en-us/cpp/intrinsics/popcnt16-popcnt-popcnt64
target_compile_options(faiss_avx2 PRIVATE $<$<COMPILE_LANGUAGE:CXX>:/arch:AVX2>)
# we need bigobj for the swig wrapper
add_compile_options(/bigobj)
endif()
add_library(faiss_avx512 ${FAISS_SRC})
if(NOT FAISS_OPT_LEVEL STREQUAL "avx512")
set_target_properties(faiss_avx512 PROPERTIES EXCLUDE_FROM_ALL TRUE)
endif()
if(NOT WIN32)
# All modern CPUs support F, CD, VL, DQ, BW extensions.
# Ref: https://en.wikipedia.org/wiki/AVX512
target_compile_options(faiss_avx512 PRIVATE $<$<COMPILE_LANGUAGE:CXX>:-mavx2 -mfma -mf16c -mavx512f -mavx512cd -mavx512vl -mavx512dq -mavx512bw -mpopcnt>)
else()
target_compile_options(faiss_avx512 PRIVATE $<$<COMPILE_LANGUAGE:CXX>:/arch:AVX512>)
# we need bigobj for the swig wrapper
add_compile_options(/bigobj)
endif()
# Handle `#include <faiss/foo.h>`.
target_include_directories(faiss PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>)
# Handle `#include <faiss/foo.h>`.
target_include_directories(faiss_avx2 PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>)
# Handle `#include <faiss/foo.h>`.
target_include_directories(faiss_avx512 PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>)
set_target_properties(faiss PROPERTIES
POSITION_INDEPENDENT_CODE ON
WINDOWS_EXPORT_ALL_SYMBOLS ON
)
set_target_properties(faiss_avx2 PROPERTIES
POSITION_INDEPENDENT_CODE ON
WINDOWS_EXPORT_ALL_SYMBOLS ON
)
set_target_properties(faiss_avx512 PROPERTIES
POSITION_INDEPENDENT_CODE ON
WINDOWS_EXPORT_ALL_SYMBOLS ON
)
if(WIN32)
target_compile_definitions(faiss PRIVATE FAISS_MAIN_LIB)
target_compile_definitions(faiss_avx2 PRIVATE FAISS_MAIN_LIB)
target_compile_definitions(faiss_avx512 PRIVATE FAISS_MAIN_LIB)
endif()
target_compile_definitions(faiss PRIVATE FINTEGER=int)
target_compile_definitions(faiss_avx2 PRIVATE FINTEGER=int)
target_compile_definitions(faiss_avx512 PRIVATE FINTEGER=int)
find_package(OpenMP REQUIRED)
target_link_libraries(faiss PRIVATE OpenMP::OpenMP_CXX)
target_link_libraries(faiss_avx2 PRIVATE OpenMP::OpenMP_CXX)
target_link_libraries(faiss_avx512 PRIVATE OpenMP::OpenMP_CXX)
find_package(MKL)
if(MKL_FOUND)
target_link_libraries(faiss PRIVATE ${MKL_LIBRARIES})
target_link_libraries(faiss_avx2 PRIVATE ${MKL_LIBRARIES})
target_link_libraries(faiss_avx512 PRIVATE ${MKL_LIBRARIES})
else()
find_package(BLAS REQUIRED)
target_link_libraries(faiss PRIVATE ${BLAS_LIBRARIES})
target_link_libraries(faiss_avx2 PRIVATE ${BLAS_LIBRARIES})
target_link_libraries(faiss_avx512 PRIVATE ${BLAS_LIBRARIES})
find_package(LAPACK REQUIRED)
target_link_libraries(faiss PRIVATE ${LAPACK_LIBRARIES})
target_link_libraries(faiss_avx2 PRIVATE ${LAPACK_LIBRARIES})
target_link_libraries(faiss_avx512 PRIVATE ${LAPACK_LIBRARIES})
endif()
install(TARGETS faiss
EXPORT faiss-targets
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
)
if(FAISS_OPT_LEVEL STREQUAL "avx2")
install(TARGETS faiss_avx2
EXPORT faiss-targets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
endif()
if(FAISS_OPT_LEVEL STREQUAL "avx512")
install(TARGETS faiss_avx2 faiss_avx512
EXPORT faiss-targets
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
endif()
foreach(header ${FAISS_HEADERS})
get_filename_component(dir ${header} DIRECTORY )
install(FILES ${header}
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/faiss/${dir}
)
endforeach()
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
"${PROJECT_BINARY_DIR}/cmake/faiss-config-version.cmake"
VERSION ${CMAKE_PROJECT_VERSION}
COMPATIBILITY AnyNewerVersion
)
configure_file(${PROJECT_SOURCE_DIR}/cmake/faiss-config.cmake.in
${PROJECT_BINARY_DIR}/cmake/faiss-config.cmake
COPYONLY
)
install(FILES ${PROJECT_BINARY_DIR}/cmake/faiss-config.cmake
${PROJECT_BINARY_DIR}/cmake/faiss-config-version.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/faiss
)
install(EXPORT faiss-targets
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/faiss
)
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