[Inductor][Windows] add env_var switch to turn all Windows inductor UTs.

[xuhancn]

For timeout reason, we can't turn on all Windows Inductor UTs in CI: #135927
And without the UTs, we can't ensure Windows inductor quality.

Intel team will do some local test for Windows inductor, but we still need to add a switch to turn on the full Windows inductor UTs.

The switch is an environment variable:

set TORCHINDUCTOR_WINDOWS_TESTS=1

After setup this environment variable, we can turn on all Windows inductor UTs, It will not affect to PyTorch CI.

cc @peterjc123 @mszhanyi @skyline75489 @nbcsm @iremyux @Blackhex @jgong5 @mingfeima @XiaobingSuper @sanchitintel @ashokei @jingxu10 @voznesenskym @penguinwu @EikanWang @Guobing-Chen @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @chenyang78 @kadeng @chauhang @amjames

[pytorch-bot]

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❌ 1 New Failure

As of commit 0eef9a5 with merge base 7ae0ce6 ():

NEW FAILURE - The following job has failed:

• xpu / linux-jammy-xpu-2025.0-py3.9 / test (default, 1, 4, linux.idc.xpu) (gh)
  'Test'

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[xuhancn]

@pytorchbot rebase

[pytorchmergebot]

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

[pytorchmergebot]

Successfully rebased xu_add_switch_for_windows_inductor_uts onto refs/remotes/origin/viable/strict, please pull locally before adding more changes (for example, via git checkout xu_add_switch_for_windows_inductor_uts && git pull --rebase)

[xuhancn]

@pytorchbot rebase

[pytorchmergebot]

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

[pytorchmergebot]

Successfully rebased xu_add_switch_for_windows_inductor_uts onto refs/remotes/origin/viable/strict, please pull locally before adding more changes (for example, via git checkout xu_add_switch_for_windows_inductor_uts && git pull --rebase)

Done the change request.

[xuhancn]

@pytorchbot merge

[pytorchmergebot]

Merge started

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[pytorchmergebot]

Merge failed

Reason: 1 jobs have failed, first few of them are: xpu / linux-jammy-xpu-2025.0-py3.9 / test (default, 1, 4, linux.idc.xpu)

Details for Dev Infra team

Raised by workflow job

[xuhancn]

@pytorchbot merge -f "skip xpu timeout UTs."

[pytorchmergebot]

Merge started

Your change will be merged immediately since you used the force (-f) flag, bypassing any CI checks (ETA: 1-5 minutes). Please use -f as last resort and instead consider -i/--ignore-current to continue the merge ignoring current failures. This will allow currently pending tests to finish and report signal before the merge.

Learn more about merging in the wiki.

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

Advanced Debugging

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