[BUG] 25.06 Non-determinisms in MG code causing test failures in CI
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- Dominant language
- Cuda
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Description
Making a note here, because this could be causing serious issues for users (like segfaults) in 25.06 and we need to make sure this isn't ultimately going to render the SNMG APIs useless for 25.06 users.
In short, we need to investigate whether a point update to 25.06 is needed and we also need to fix the bug if it hasn't been fixed already. Unfortunately, since 25.06 cuVS nightly tests are still failing as of the date of creating this issue, I believe we do still have a major bug to fix (and patch).
cc @raydouglass @viclafargue @jinsolp @dantegd
Contributor guide
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
Begin with the linked 25.06 cuVS nightly test run and inspect its failures around the MG/SNMG code. The issue names no file or test, so first reproduce and localize the nondeterminism. Done means fixing the underlying bug, confirming the nightly tests pass, and determining whether a 25.06 point update is needed.
Written by the indexing model from the issue text.
Assessment
- Domain
- backend-api-design, testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100