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#16663 PR: Allocate MemoryAccountingBitsetCollector bitset lazily on first match
14.8 hours ago  0 comments  0 votes  0 watches  Sasilekha, github-actions[bot]
MemoryAccountingBitsetCollector used to reserve a bitset large enough for the entire leaf upfront, ... Under intra segment concurrency (where each partition worker gets its own collector), unmatched ... This PR delays the allocation until the first match, so collectors that see no matches allocate ...

#16640 PR: Draft: Add single-query many-doc bulk scoring API to VectorUtilSupport (#16556)
20.4 hours ago  1 comments  0 votes  0 watches  CH-Abhinav, github-actions[bot]
## Description This is Draft PR addressing #16556 and subsequently progressing 15155 This PR is ... **Current progress (float32 dot product):** 1. Added zero-allocation void dotProductBulk(float[] query, float[][] docs, float[] results) to ...
    CH-Abhinav 20.4 hours ago:  I went ahead and implemented off-heap path to PanamaVectorUtilSupport for dotProductBulk to make ... while doing so I did following:- 1. Left the base VectorUtilSupport strictly for on-heap arrays 2.

#16666 PR: Iouring rerank reads for larger-than-RAM KNN search
1 day ago  0 comments  0 votes  0 watches  190, 230, 250, github-actions[bot], goankur
Title: **(Implemented with AI, with Human in the loop)** Sandbox IoUringDirectory: batched ... **Nothing outside lucene/sandbox/ is touched.** Description In 16656 a rerank shortlist is ... That works, but each read costs a syscall, a thread hand-off, and a blocked worker. io_uring ...

#16656 PR: Parallel O_DIRECT rerank reads for larger-than-RAM KNN search
1 day ago  0 comments  0 votes  0 watches  github-actions[bot], goankur
Title: **(Implemented with AI, with Human in the loop)** Parallel O_DIRECT full-precision ... But the rerank reads the fp32 vectors one at a time, and once the index exceeds RAM those reads ... This PR: - **FlatVectorsReader.readRawVectors(field, ords, count, out)** (core, codecs/hnsw): an ...

#16357 PR: Add shared-floor kNN collection to the sandbox module
1.1 days ago  6 comments  0 votes  0 watches  benwtrent, github-actions[bot], krickert, vigyasharma
Sandbox: shared-floor kNN collection for multi-shard search # The problem Distributed HNSW ... The goal of this PR is to open up the ability to test ways to bring this number down which should ... Although initial measurements suggest around a 30% reduction, testing is underway to produce a more ...
    github-actions[bot] 1.1 days ago:  This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
    github-actions[bot] 19.1 days ago:  This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!

#16442 PR: Fix addMultiTermClauses: preserve per-field SHOULD when a clause isn't a bare TermQuery (#16441)
1.1 days ago  3 comments  0 votes  0 watches  OlivierJaquemet, github-actions[bot]
Fixes 16441 **Problem:** QueryParserBaseaddMultiTermClauses decides whether to pass a nested ... This check is too narrow: a BoostQuery-wrapped term (or any other non-TermQuery leaf — PrefixQuery, ... Example: with a per-field boost configured and AND_OPERATOR, MultiFieldQueryParser.parse( ...
    github-actions[bot] 1.1 days ago:  This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
    OlivierJaquemet 18.5 days ago:  Still waiting for review by maintainers.

#16534 PR: Correct termBytePool reference in FreqProxTermsEnum and clarify pool sharing
1.1 days ago  4 comments  0 votes  0 watches  github-actions[bot], msokolov, neoremind
FreqProxTermsEnum is the bridge between the in-memory hash+pool and the codec writer, it uses ... There is no problem now because we do pool sharing today, we use the same ByteBlockPool to store ... Semantically speaking, FreqProxTermsEnum's constructor should use the right reference even though ...
    github-actions[bot] 1.1 days ago:  This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
    neoremind 16.9 days ago:  @msokolov I've investigated what if we make the two pools separate and shared the full findings ... As for this PR, the semantic correction is still a valid one and would be a premise if we go with ...

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