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Skipping VirtualMemoryResource tests on WSL#1127

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rparolin merged 2 commits intoNVIDIA:mainfrom
rparolin:rparolin/virtmem_skip_wsl
Oct 11, 2025
Merged

Skipping VirtualMemoryResource tests on WSL#1127
rparolin merged 2 commits intoNVIDIA:mainfrom
rparolin:rparolin/virtmem_skip_wsl

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@rparolin rparolin commented Oct 11, 2025 •
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Skipping VirtualMemoryResource tests on WSL

When running the VirtualMemoryResources tests under the Windows Subsystem for Linux (WSL) allocation requests throw the following error:

>   raise CUDAError(f"{name.decode()}: {expl}")
E   cuda.core.experimental._utils.cuda_utils.CUDAError: CUDA_ERROR_INVALID_DEVICE: This indicates that the device ordinal supplied by the user does not correspond to a valid CUDA device or that the action requested is invalid for the specified device.

cuda/core/experimental/_utils/cuda_utils.pyx:78: CUDAError

See known limitations for WSL2.
https://docs.nvidia.com/cuda/wsl-user-guide/index.html#known-limitations-for-linux-cuda-applications

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@rparolin rparolin requested a review from leofang October 11, 2025 00:08
@rparolin rparolin changed the title Disabling VirtualMemoryResource tests on WSL Skipping VirtualMemoryResource tests on WSL Oct 11, 2025
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rparolin commented Oct 11, 2025

/ok to test 46af80d

@rparolin rparolin enabled auto-merge (squash) October 11, 2025 00:11
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@rparolin rparolin merged commit ebd5453 into NVIDIA:main Oct 11, 2025
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leofang commented Oct 13, 2025 •
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@rparolin in what ways VMM raises an error on WSL? Could you show a full traceback to what you see?

Asking because we were told that VMM is supported by the Windows WDDM driver mode (#968 (comment)), and WSL is a pass-through of WDDM according to @ksimpson-work, and so by deduction it should be supported. This is a bit surprising... 🤔

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keenan-simpson commented Oct 14, 2025

This is not the right place to be commenting, but skipping tests on windows because something isn't supported in TCC feels heavy handed. a utility function to check if the system is in TCC mode seems more appropriate. RE: VMM I would also be curious to know what the issues on WSL are for VMM, if this isn't already fully resolved

@leofang leofang mentioned this pull request Oct 22, 2025
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@kkraus14 kkraus14 kkraus14 approved these changes

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