lmcinnes / lmcinnes/pynndescent

Newest version breaks with UMAP

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#217 3 comments 1 reaction 0 assignees View on GitHub

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Dominant language
Python
Stars
970
Forks
107
PR merge metrics
No merged PRs in 30d

Description

Installing the new version and running UMAP, first attempt runs ok, all subsequent ones crash (likely due to some memory leak). Downgrading to the previous version solves the problem.

Contributor guide

Open the contributing guide

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 failure described: run UMAP once with the newest version, then repeat it and compare behavior with the previous version. Investigate where memory grows between runs; done means repeated UMAP executions no longer crash in the newest version and the regression is verified.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
machine-learning, performance
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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