scaled_upper_triang_masked_softmax_cuda: undefined symbol
Open
Nobody has claimed this yet.
bug
- Dominant language
- Python
- Stars
- 9k
- Forks
- 1.5k
- Avg merge
- 2d 4h
- Merged PRs (30d)
- 3
Description
Hello, I have this issue:
File "<frozen importlib._bootstrap>", line 583, in module_from_spec
File "<frozen importlib._bootstrap_external>", line 1043, in create_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: .../megatron/fused_kernels/build/scaled_upper_triang_masked_softmax_cuda.so: undefined symbol: _ZN3c106detail19maybe_wrap_dim_slowEllb
My configuration:
apex 0.1
torch 1.11.0+cu113
torchaudio 0.11.0+cu113
torchfile 0.1.0
torchvision 0.12.0+cu113
ubuntu 18.04
gcc 7.5.0
I will be glad for any help!
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the reported import failure for megatron/fused_kernels/build/scaled_upper_triang_masked_softmax_cuda.so and compare the listed PyTorch 1.11.0+cu113, Apex 0.1, Ubuntu 18.04, and GCC 7.5.0 versions. Done means the extension imports without the undefined-symbol error, with the required compatibility or reproduction details recorded.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- linux, python, pytorch
- Domain
- build-system, machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100