Refactor CPUReproTests to be more vector-length agnostic

[Mousius]

This changes the hardcoded assumptions of a 256-bit vector length to querying from cpu_vec_isa and changes relevant tests to share the logic.

Also refactored the config.cpp.simdlen != 1 into the assertion so we stop duplicating it throughout the test cases.

Fixes issues on 128-bit machines.

cc @malfet @snadampal @milpuz01 @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @ipiszy @yf225 @chenyang78 @kadeng @muchulee8 @ColinPeppler @amjames @desertfire @chauhang @aakhundov

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/141245

• 📄 Preview Python docs built from this PR
• 📄 Preview C++ docs built from this PR
• ❓ Need help or want to give feedback on the CI? Visit the bot commands wiki or our office hours

Note: Links to docs will display an error until the docs builds have been completed.

✅ No Failures

As of commit 83f8933 with merge base 5fd881a ():
💚 Looks good so far! There are no failures yet. 💚

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[Mousius]

@pytorchbot label "module: arm"

[Mousius]

@pytorchbot merge -r

[pytorchmergebot]

@pytorchbot started a rebase job onto refs/remotes/origin/viable/strict. Check the current status here

[pytorchmergebot]

Successfully rebased get-simd-lengths-in-cpu-repro onto refs/remotes/origin/viable/strict, please pull locally before adding more changes (for example, via git checkout get-simd-lengths-in-cpu-repro && git pull --rebase)

[pytorchmergebot]

Merge started

Your change will be merged once all checks pass (ETA 0-4 Hours).

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
here

[pytorchmergebot]

Merge failed

Reason: 3 mandatory check(s) failed. The first few are:

• BC Lint
• Lint
• pull

Dig deeper by viewing the failures on hud

Details for Dev Infra team

Raised by workflow job

Failing merge rule: Core Maintainers

[Mousius]

@desertfire could you nudge CI for me please?

[Mousius]

Or maybe @malfet? 😸

[malfet]

@pytorchbot merge -r

[pytorchmergebot]

@pytorchbot started a rebase job onto refs/remotes/origin/viable/strict. Check the current status here

[pytorchmergebot]

Successfully rebased get-simd-lengths-in-cpu-repro onto refs/remotes/origin/viable/strict, please pull locally before adding more changes (for example, via git checkout get-simd-lengths-in-cpu-repro && git pull --rebase)

[pytorchmergebot]

Merge started

Your change will be merged once all checks pass (ETA 0-4 Hours).

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
here

[pytorchmergebot]

Merge failed

Reason: 3 mandatory check(s) failed. The first few are:

• BC Lint
• Lint
• pull

Dig deeper by viewing the failures on hud

Details for Dev Infra team

Raised by workflow job

Failing merge rule: Core Maintainers

[malfet]

@pytorchbot merge

[pytorchmergebot]

Merge started

Your change will be merged once all checks pass (ETA 0-4 Hours).

Learn more about merging in the wiki.

Questions? Feedback? Please reach out to the PyTorch DevX Team

Advanced Debugging

Check the merge workflow status
here