harplife commented on issue #10562:
URL:
https://github.com/apache/incubator-mxnet/issues/10562#issuecomment-763419390
Windows 10 Enterprise v 20H2, Python 3.6, Cuda 10, mxnet 1.7.0 - I have this
problem too. It does work with `num_workers=0`.
```python
>>> train_dataloader = mx.gluon.data.DataLoader(data_train,
batch_size=batch_size, num_workers=5)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"C:\Users\zion\Anaconda3\envs\glu_env\lib\site-packages\mxnet\gluon\data\dataloader.py",
line 620, in __init__
initargs=[self._dataset, is_np_shape(), is_np_array()])
File
"C:\Users\zion\Anaconda3\envs\glu_env\lib\multiprocessing\context.py", line
119, in Pool
context=self.get_context())
File "C:\Users\zion\Anaconda3\envs\glu_env\lib\multiprocessing\pool.py",
line 174, in __init__
self._repopulate_pool()
File "C:\Users\zion\Anaconda3\envs\glu_env\lib\multiprocessing\pool.py",
line 239, in _repopulate_pool
w.start()
File
"C:\Users\zion\Anaconda3\envs\glu_env\lib\multiprocessing\process.py", line
105, in start
self._popen = self._Popen(self)
File
"C:\Users\zion\Anaconda3\envs\glu_env\lib\multiprocessing\context.py", line
322, in _Popen
return Popen(process_obj)
File
"C:\Users\zion\Anaconda3\envs\glu_env\lib\multiprocessing\popen_spawn_win32.py",
line 65, in __init__
reduction.dump(process_obj, to_child)
File
"C:\Users\zion\Anaconda3\envs\glu_env\lib\multiprocessing\reduction.py", line
60, in dump
ForkingPickler(file, protocol).dump(obj)
BrokenPipeError: [Errno 32] Broken pipe
```
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