This "flat" Lucene index was generated on 2022/05/01 at Anserini commit 1842ee on damiano with the following command:
nohup target/appassembler/bin/IndexCollection \
-collection BeirFlatCollection \
-input /scratch2/collections/beir-v1.0.0/corpus/cqadupstack-english \
-index indexes/lucene-index.beir-v1.0.0-cqadupstack-english-flat.20220501.1842ee/ \
-generator DefaultLuceneDocumentGenerator \
-threads 16 -storePositions -storeDocvectors -storeRaw -optimize \
>& logs/log.beir-v1.0.0-cqadupstack-english-flat.20220501.1842ee &