benwtrent commented on code in PR #15607:
URL: https://github.com/apache/lucene/pull/15607#discussion_r2743171466
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lucene/core/src/java/org/apache/lucene/util/hnsw/HnswGraphBuilder.java:
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@@ -67,6 +67,8 @@ public class HnswGraphBuilder implements HnswBuilder {
protected final int M; // max number of connections on upper layers
private final double ml;
+ private final int[] bulkScoreNodes; // for bulk scoring
+ private final float[] bulkScores; // for bulk scoring
Review Comment:
@kaivalnp the scorer itself isn't threadsafe. I assumed that since we were
using a scorer, we were OK.
I had the same threading concerns and looked up and it seems that each
thread as a unique builder object instance (The worker of the thread) and they
all work on the same graph.
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