NVIDIA / NVIDIA/raft

[BUG] RBC 3D shows 2-3 discrepancies only when whole gtest suite is executed

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bug inactive-30d inactive-90d
Dominant language
Cuda
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Description

When the whole test_raft gtest suite is executed, there seem to be 2-3 discrepancies (out of 8000 samples) that pop up in the RBC 3D test when k is in the range [2, 5]. When running the RBC tests alone, compute-sanitizer isn't showing any errors.

It could be possible that this is exposing a larger issue (potentially numerical or correctness) in the landmark or data point filtering.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the discrepancy in the full test_raft gtest suite, then compare it with the standalone RBC tests for k in [2, 5]. Use compute-sanitizer while investigating the RBC 3D test and the suspected landmark or data point filtering paths. Done means the discrepancies are explained and the relevant tests run consistently.

Written by the indexing model from the issue text.

Assessment

Domain
machine-learning, testing-qa
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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