Add Bfloat16 support to CrossKernel.cu

[jamaliki]

Fixes #108940

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/108941

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❌ 3 New Failures, 1 Unrelated Failure

As of commit 33bb214 with merge base 137afe7 ():

NEW FAILURES - The following jobs have failed:

• linux-focal-cuda12.1-py3.10-gcc9 / test (nogpu_NO_AVX2, 1, 1, linux.2xlarge) (gh)
• linux-focal-rocm5.6-py3.8 / test (default, 1, 3, linux.rocm.gpu) (gh)
• macos-12-py3-arm64 / test (default, 3, 3, macos-m1-12) (gh)

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• linux-focal-cuda12.1-py3.10-gcc9 / test (nogpu_AVX512, 1, 1, linux.2xlarge) (gh)

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[mikaylagawarecki]

Thanks!

[mikaylagawarecki]

@pytorchbot merge

[pytorch-bot]

This PR needs to be approved by an authorized maintainer before merge.

[mikaylagawarecki]

@pytorchbot merge

[pytorchmergebot]

Merge started

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[pytorchmergebot]

Merge failed

Reason: 1 jobs have failed, first few of them are: trunk / macos-12-py3-arm64 / test (default, 3, 3, macos-m1-12)

Details for Dev Infra team

Raised by workflow job

[jamaliki]

Hey @mikaylagawarecki , there appear to be some test failures that don't seem to be relevant to this change. Do you know what is the issue here?

[mikaylagawarecki]

@pytorchbot merge -f "OptimizedModuleTest.test_module_with_training_state failures are unrelated"

[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

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