The operator 'aten::upsample_nearest1d.out' is not currently supported on the DML backend and will fall back to run on the CPU

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
cpp, python
Domain
machine-learning

Research direction

Reproduce the warning from torch.nn.functional.py at the reported upsample_nearest1d call, then inspect torch_directml/csrc/dml/dml_cpu_fallback.cpp around line 17 and the operator-support implementation. Done means aten::upsample_nearest1d.out executes on the DML backend without a CPU fallback, with coverage confirming the behavior.

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Description

When I use the directml on amd platform,i got the warning ,and it fall back to run on CPU。

C:\Users\amd.conda\envs\aippt\Lib\site-packages\torch\nn\functional.py:4048: UserWarning: The operator 'aten::upsample_nearest1d.out' is not currently supported on the DML backend and will fall back to run on the CPU. This may have performance implications. (Triggered internally at C:__w\1\s\pytorch-directml-plugin\torch_directml\csrc\dml\dml_cpu_fallback.cpp:17.)
return torch._C._nn.upsample_nearest1d(input, output_size, scale_factors)

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