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Wire calculatePartialSums to native SIMD via Panama FFI downcall #651

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Wire calculatePartialSums to native SIMD via Panama FFI downcall #651

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0602b8c
Add optimal AVX2/SSE reduction and refactor native SIMD code
Apr 1, 2026
8453d57
Wire calculatePartialSums to native SIMD via Panama FFI downcall
Apr 1, 2026
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4 changes: 2 additions & 2 deletions jvector-native/src/main/c/jextract_vector_simd.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,7 @@ CURRENT_GCC_VERSION=$(gcc -dumpversion)
# Check if the current GCC version is greater than or equal to the minimum required version
if [ "$(printf '%s\n' "$MIN_GCC_VERSION" "$CURRENT_GCC_VERSION" | sort -V | head -n1)" = "$MIN_GCC_VERSION" ]; then
rm -rf ../resources/libjvector.so
gcc -fPIC -O3 -march=icelake-server -c jvector_simd.c -o jvector_simd.o
gcc -fPIC -O3 -march=skylake-avx512 -c jvector_simd.c -o jvector_simd.o
gcc -fPIC -O3 -march=x86-64 -c jvector_simd_check.c -o jvector_simd_check.o
gcc -shared -o ../resources/libjvector.so jvector_simd_check.o jvector_simd.o

Expand Down Expand Up @@ -77,4 +77,4 @@ jextract \
jvector_simd.h

# Set critical linker option with heap-based segments for all generated methods
sed -i 's/DESC)/DESC, Linker.Option.critical(true))/g' ../java/io/github/jbellis/jvector/vector/cnative/NativeSimdOps.java
sed -i 's/DESC)/DESC, Linker.Option.critical(true))/g' ../java/io/github/jbellis/jvector/vector/cnative/NativeSimdOps.java
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