Allow host function call during CUDA graph capture#9279
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kmaehashi
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Aug 2, 2025
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| # N.B. Currently this function should not be called during CUDA graph | ||
| # capture, as the reference to the callback/arg will be DECREFed on the | ||
| # first callback. | ||
| # Eventually this should be replaced by `_launchHostFuncUnmanaged`. |
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This PR keeps cupy.cuda.runtime.launchHostFunc backward-compatible as the fix needs to be backported to v13. Maybe we can change this in v14 in a follow-up PR.
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/test mini |
asi1024
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Aug 4, 2025
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@kmaehashi Failed to backport automatically. |
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Allow host function call during CUDA graph capture
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This allows use of
Stream.launch_host_func()during CUDA graph capture.Closes #9274.