Duplicate Train Loader Preparation with Accelerate

[Qifeng-Wu99]

Hello

I think this line of code is redundant, since the train_loader has already been wrapped by Accelerator in setup_accelerate() .

The removal of the line of code supresses an error when I try to finetune xtts with my own dataset while employing multi gpus.

The error looks like:

Traceback (most recent call last):
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/trainer/trainer.py", line 1826, in fit
    self._fit()
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/trainer/trainer.py", line 1778, in _fit
    self.train_epoch()
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/trainer/trainer.py", line 1503, in train_epoch
    for cur_step, batch in enumerate(self.train_loader):
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 630, in __next__
    data = self._next_data()
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 1345, in _next_data
    return self._process_data(data)
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/torch/utils/data/dataloader.py", line 1371, in _process_data
    data.reraise()
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/torch/_utils.py", line 694, in reraise
    raise exception
TypeError: Caught TypeError in DataLoader worker process 0.
Original Traceback (most recent call last):
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/torch/utils/data/_utils/worker.py", line 308, in _worker_loop
    data = fetcher.fetch(index)
  File "/home/qw/anaconda3/envs/x/lib/python3.9/site-packages/torch/utils/data/_utils/fetch.py", line 51, in fetch
    data = [self.dataset[idx] for idx in possibly_batched_index]
TypeError: 'int' object is not iterable