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More `jit` options, specifically `nogil=True` on the serial kernels

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#213 4 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
65/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
python
Domain
performance

Research direction

Start by locating the serial fallback kernels and the current jit configuration in the repository. Check how their compilation options are set and whether nogil=True can be applied consistently. Done means the serial kernels support the requested option without breaking their existing behavior, with the claimed parallelization speedup demonstrated as described in the issue.

Written by the indexing model from the issue text.

Description

Hi @flying-sheep I was wondering why the serial (fallback) kernels aren't compiled with nogil=True. This would enable parallelization via joblib and dask schedulers. Is there a reason for it? If not I can open a PR showing the speedup also.

I also want to point to something I learned. Tbb doesn't oversubscribe because it uses a process-wide arena. So, we can suggest tbb in certain OS'es instead of falling back. But setting nogil=True will be enough to be fast enough in itself.

Dominant language
Python
Stars
15
Forks
5
Avg merge
10h 33m
Merged PRs (30d)
9

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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