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DiskBBQ - Panama support for 4 bits symmetric quantization #137510

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Merged
tteofili merged 7 commits into from
Nov 3, 2025
Merged

DiskBBQ - Panama support for 4 bits symmetric quantization #137510

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bc80a22
DiskBBQ - Panama support for 4 bits symmetric quantization
tteofili Nov 3, 2025
d81ba07
Merge branch 'main' of github.com:elastic/elasticsearch into diskbbq_…
tteofili Nov 3, 2025
dd66ef6
leading dibit class, useless stuff removed
tteofili Nov 3, 2025
0c5eb46
Merge branch 'main' of github.com:elastic/elasticsearch into diskbbq_…
tteofili Nov 3, 2025
925524f
[CI] Auto commit changes from spotless
Nov 3, 2025
298bd99
Merge branch 'main' of github.com:elastic/elasticsearch into diskbbq_…
tteofili Nov 3, 2025
ac05f07
Merge branch 'main' of github.com:elastic/elasticsearch into diskbbq_…
tteofili Nov 3, 2025
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18 changes: 0 additions & 18 deletions ...a/org/elasticsearch/simdvec/internal/vectorization/MSBitToInt4ESNextOSQVectorsScorer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
import jdk.incubator.vector.LongVector;
import jdk.incubator.vector.ShortVector;
import jdk.incubator.vector.VectorOperators;
import jdk.incubator.vector.VectorSpecies;

import org.apache.lucene.index.VectorSimilarityFunction;
import org.apache.lucene.store.IndexInput;
Expand All @@ -31,23 +30,6 @@
/** Panamized scorer for quantized vectors stored as a {@link MemorySegment}. */
final class MSBitToInt4ESNextOSQVectorsScorer extends MemorySegmentESNextOSQVectorsScorer.MemorySegmentScorer {

private static final int BULK_SIZE = MemorySegmentESNextOSQVectorsScorer.BULK_SIZE;
private static final float FOUR_BIT_SCALE = 1f / ((1 << 4) - 1);

private static final VectorSpecies<Integer> INT_SPECIES_128 = IntVector.SPECIES_128;

private static final VectorSpecies<Long> LONG_SPECIES_128 = LongVector.SPECIES_128;
private static final VectorSpecies<Long> LONG_SPECIES_256 = LongVector.SPECIES_256;

private static final VectorSpecies<Byte> BYTE_SPECIES_128 = ByteVector.SPECIES_128;
private static final VectorSpecies<Byte> BYTE_SPECIES_256 = ByteVector.SPECIES_256;

private static final VectorSpecies<Short> SHORT_SPECIES_128 = ShortVector.SPECIES_128;
private static final VectorSpecies<Short> SHORT_SPECIES_256 = ShortVector.SPECIES_256;

private static final VectorSpecies<Float> FLOAT_SPECIES_128 = FloatVector.SPECIES_128;
private static final VectorSpecies<Float> FLOAT_SPECIES_256 = FloatVector.SPECIES_256;

MSBitToInt4ESNextOSQVectorsScorer(IndexInput in, int dimensions, int dataLength, MemorySegment memorySegment) {
super(in, dimensions, dataLength, memorySegment);
}
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