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Windows 10 - DLL error (post-installation)

See original GitHub issue

📚 Installation

Environment

I verified in python that my CUDA level is 10.1.

>>> import torch
>>> torch.version.cuda
'10.1'

I managed to install torch-scatter, and torch-sparse via the new pip wheels (thank you rusty1s).

${CUDA}='cu101'
pip install torch-scatter==latest+${CUDA} torch-sparse==latest+${CUDA} -f https://s3.eu-central-1.amazonaws.com/pytorch-geometric.com/whl/torch-1.4.0.html

I installed torch-geometric afterwards.

pip install torch-geometric

Testing…

>>> import torch
>>> import torch_geometric
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch_sparse\__init__.py", line 13, in <module>
    '_version', [osp.dirname(__file__)]).origin)
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch\_ops.py", line 106, in load_library
    ctypes.CDLL(path)
  File "C:\ProgramData\Anaconda3\lib\ctypes\__init__.py", line 364, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: [WinError 1114] A dynamic link library (DLL) initialization routine failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch_geometric\__init__.py", line 2, in <module>
    import torch_geometric.nn
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch_geometric\nn\__init__.py", line 2, in <module>
    from .data_parallel import DataParallel
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch_geometric\nn\data_parallel.py", line 5, in <module>
    from torch_geometric.data import Batch
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch_geometric\data\__init__.py", line 1, in <module>
    from .data import Data
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch_geometric\data\data.py", line 7, in <module>
    from torch_sparse import coalesce
  File "C:\ProgramData\Anaconda3\lib\site-packages\torch_sparse\__init__.py", line 22, in <module>
    raise OSError(e)
OSError: [WinError 1114] A dynamic link library (DLL) initialization routine failed

It’s apparently missing a DLL. I am puzzled.

It appears to be torch-sparse.