[Feature Request] Support for linux-ppc64le
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- Dominant language
- Python
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Description
Hi, I'm a trying to use apex on linux-ppc64le machines. There is no error when compile and install. However, it still falls back to python mode with the error:
Warning: multi_tensor_applier fused unscale kernel is unavailable, possibly because apex was installed without --cuda_ext --cpp_ext. Using Python fallback. Original ImportError was: ImportError('/home/xxx/.conda/envs/pt/lib/python3.6/site-packages/amp_C.cpython-36m-powerpc64le-linux-gnu.so: undefined symbol: _ZN3c105ErrorC1ENS_14SourceLocationERKSs',)
Warning: apex was installed without --cpp_ext. Falling back to Python flatten and unflatten.
Thanks!
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Research direction
Start by reproducing the linux-ppc64le installation with --cuda_ext --cpp_ext and inspect the reported amp_C ImportError and undefined PyTorch symbol. The issue names no source file or test, so locate the extension build and platform handling first; done means the CUDA and C++ extensions load on linux-ppc64le without falling back to Python mode.
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Assessment
- Tech stack
- cpp, python
- Domain
- machine-learning
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100