[FEA] Add Epsilla's ANN index to `raft-ann-bench`
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- Dominant language
- Cuda
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Description
Epsilla is showing to be a fairly promising CPU-based solution and it natively uses multiple threads to parallelize even single queries (similar to CAGRA). We should add it to raft-ann-bench so we can evaluate it against HNSW and our GPU implementations.
If it proves to be as competitive as they claim, we should also explore the potential for using their search implementation on the CAGRA graph (cc @divyegala).
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the raft-ann-bench entry point and its existing HNSW and GPU implementation integrations. Add Epsilla as a benchmarked ANN implementation, then verify that results can be compared against those existing implementations; the issue does not name specific files or tests.
Written by the indexing model from the issue text.
Assessment
- Domain
- search
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100