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Add General HNSW GRAPH_ONLY Support - #2677

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julianmi wants to merge 6 commits into
NVIDIA:mainfrom
julianmi:hnsw-graph-only
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julianmi wants to merge 6 commits into
NVIDIA:mainfrom
julianmi:hnsw-graph-only

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@julianmi

@julianmi julianmi commented Sep 23, 2026 •

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This patch proposes to extend the HNSW graph only format to all build algorithms called during hnsw::build. Thus, a user can select to build the HNSW graph only independent of the memory requirements and the chosen build method. This minimizes the network transfer required when moving the index to another system with the local dataset. Builds on top of #2148 which focuses on CAGRA-ACE support.

CC @tfeher

@julianmi
julianmi requested review from a team as code owners September 23, 2026 09:09
@julianmi julianmi self-assigned this Sep 23, 2026
@julianmi julianmi added improvement Improves an existing functionality non-breaking Introduces a non-breaking change labels Sep 23, 2026
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