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23 lines
1.3 KiB
CMake
23 lines
1.3 KiB
CMake
set(FP16_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/FP16")
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set(SIMSIMD_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/SimSIMD")
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set(USEARCH_PROJECT_DIR "${ClickHouse_SOURCE_DIR}/contrib/usearch")
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add_library(_usearch INTERFACE)
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target_include_directories(_usearch SYSTEM INTERFACE
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${FP16_PROJECT_DIR}/include
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${SIMSIMD_PROJECT_DIR}/include
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${USEARCH_PROJECT_DIR}/include)
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target_compile_definitions(_usearch INTERFACE USEARCH_USE_FP16LIB)
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# target_compile_definitions(_usearch INTERFACE USEARCH_USE_SIMSIMD)
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# ^^ simsimd is not enabled at the moment. Reasons:
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# - Vectorization is important for raw scans but not so much for HNSW. We use usearch only for HNSW.
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# - Simsimd does compile-time dispatch (choice of SIMD kernels determined by capabilities of the build machine) or dynamic dispatch (SIMD
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# kernels chosen at runtime based on cpuid instruction). Since current builds are limited to SSE 4.2 (x86) and NEON (ARM), the speedup of
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# the former would be moderate compared to AVX-512 / SVE. The latter is at the moment too fragile with respect to portability across x86
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# and ARM machines ... certain conbinations of quantizations / distance functions / SIMD instructions are not implemented at the moment.
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add_library(ch_contrib::usearch ALIAS _usearch)
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