Support BF16ImmPtr

[EikanWang]

Stack from ghstack (oldest at bottom):

• Do not pull in _autocast_* ops into NNC #85140
• Use high precision accmulate buffer for bf16 accmulation #84402
• -> Support BF16ImmPtr #84041

• To support BF16 Immediate value by converting it to uint16. The behavior is as same as BF16 tensor
• Enable BF16 test cases.

[facebook-github-bot]

🔗 Helpful links

• 🧪  See artifacts and rendered test results at hud.pytorch.org/pr/84041
• ✖️ Python docs build was skipped
• ✖️ C++ docs build was skipped
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[frank-wei]

@pytorchbot merge -l

[frank-wei]

Could you pls check the failed tests?

[pytorchmergebot]

@pytorchbot successfully started a merge job. Check the current status here and land check progress here.
The merge job was triggered with the land checks (-l) flag. If you did not specify this flag yourself, you are likely enrolled in the land checks rollout. This means that your change will be merged once all checks on your PR and the land checks have passed (ETA 4 Hours). If you need to coordinate lands between different changes and cannot risk a land race, please add the ciflow/trunk label to your PR and wait for signal to complete, and then land your changes in proper order. Having trunk, pull, and Lint pre-run on a PR will bypass land checks and the ETA should be immediate. If this is not the intended behavior, feel free to use some of the other merge options in the wiki.
Please reach out to the PyTorch DevX Team with feedback or questions!

[pytorchmergebot]

Merge failed

Reason: The following mandatory check(s) failed (Rule superuser):

• pull

Dig deeper by viewing the failures on hud

If you believe this is an error, you can use the old behavior with @pytorchbot merge -g (optionally with the ciflow/trunk to get land checks) or use @pytorchbot merge -f "some reason here". For more information, see the bot wiki.

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Raised by workflow job

[EikanWang]

Could you pls check the failed tests?

Yes. I fixed it and triggered the CI again. I will check the CI result.

[EikanWang]

Could you pls check the failed tests?

Yes. I fixed it and triggered the CI again. I will check the CI result.

@frank-wei , this PR passed the CI. Could you review it?

[EikanWang]

@pytorchbot merge -l

[pytorchmergebot]

@pytorchbot successfully started a merge job. Check the current status here and land check progress here.
The merge job was triggered with the land checks (-l) flag. If you did not specify this flag yourself, you are likely enrolled in the land checks rollout. This means that your change will be merged once all checks on your PR and the land checks have passed (ETA 4 Hours). If you need to coordinate lands between different changes and cannot risk a land race, please add the ciflow/trunk label to your PR and wait for signal to complete, and then land your changes in proper order. Having trunk, pull, and Lint pre-run on a PR will bypass land checks and the ETA should be immediate. If this is not the intended behavior, feel free to use some of the other merge options in the wiki.
Please reach out to the PyTorch DevX Team with feedback or questions!

[pytorchmergebot]

Merge failed

Reason: Failed to merge; some land checks failed: Lint, Lint / lintrunner

If you believe this is an error, you can use the old behavior with @pytorchbot merge -g (optionally with the ciflow/trunk to get land checks) or use @pytorchbot merge -f "some reason here". For more information, see the bot wiki.

Please reach out to the PyTorch DevX Team with feedback or questions!

Details for Dev Infra team

Raised by workflow job

[EikanWang]

@pytorchbot merge -l

[pytorchmergebot]

@pytorchbot successfully started a merge job. Check the current status here and land check progress here.
The merge job was triggered with the land checks (-l) flag. If you did not specify this flag yourself, you are likely enrolled in the land checks rollout. This means that your change will be merged once all checks on your PR and the land checks have passed (ETA 4 Hours). If you need to coordinate lands between different changes and cannot risk a land race, please add the ciflow/trunk label to your PR and wait for signal to complete, and then land your changes in proper order. Having trunk, pull, and Lint pre-run on a PR will bypass land checks and the ETA should be immediate. If this is not the intended behavior, feel free to use some of the other merge options in the wiki.
Please reach out to the PyTorch DevX Team with feedback or questions!

[github-actions]

Hey @EikanWang.
You've committed this PR, but it does not have both a 'release notes: ...' and 'topics: ...' label. Please add one of each to the PR. The 'release notes: ...' label should represent the part of PyTorch that this PR changes (fx, autograd, distributed, etc) and the 'topics: ...' label should represent the kind of PR it is (not user facing, new feature, bug fix, perf improvement, etc). The list of valid labels can be found here for the 'release notes: ...' and here for the 'topics: ...'.
For changes that are 'topic: not user facing' there is no need for a release notes label.