Hello everybody,
I’m working with Fastai (V. 2.1.7) on Azure Machine Learning (Azure ML) and I’m having an issue.
If I train a model directly in the notebook, everything looks ok.
When I try to run exactly the same python code into an experiment I get the following error.
Have you ever experienced the same issue?
Do you have any idea about it?
Thanks a lot
Traceback (most recent call last):
File "train.py", line 75, in <module>
learn.fit_one_cycle(8, 3e-3)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/callback/schedule.py", line 112, in fit_one_cycle
self.fit(n_epoch, cbs=ParamScheduler(scheds)+L(cbs), reset_opt=reset_opt, wd=wd)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 205, in fit
self._with_events(self._do_fit, 'fit', CancelFitException, self._end_cleanup)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 154, in _with_events
try: self(f'before_{event_type}') ;f()
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 196, in _do_fit
self._with_events(self._do_epoch, 'epoch', CancelEpochException)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 154, in _with_events
try: self(f'before_{event_type}') ;f()
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 190, in _do_epoch
self._do_epoch_train()
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 182, in _do_epoch_train
self._with_events(self.all_batches, 'train', CancelTrainException)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 154, in _with_events
try: self(f'before_{event_type}') ;f()
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/learner.py", line 160, in all_batches
for o in enumerate(self.dl): self.one_batch(*o)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/data/load.py", line 103, in __iter__
yield self.after_batch(b)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastcore/transform.py", line 198, in __call__
def __call__(self, o): return compose_tfms(o, tfms=self.fs, split_idx=self.split_idx)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastcore/transform.py", line 150, in compose_tfms
x = f(x, **kwargs)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/vision/augment.py", line 34, in __call__
self.before_call(b, split_idx=split_idx)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/vision/augment.py", line 377, in before_call
self.do,self.mat = True,self._get_affine_mat(b)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/vision/augment.py", line 388, in _get_affine_mat
aff_m = _init_mat(x)
File "/anaconda/envs/azureml_py36/lib/python3.6/site-packages/fastai/vision/augment.py", line 286, in _init_mat
mat = torch.eye(3, device=x.device).float()
AttributeError: 'list' object has no attribute 'device'