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PR #1778 causes error

See original GitHub issue

Describe the bug PR #1778 has broken a Clara Train MMAR that uses RandomZoomD.

Original Traceback (most recent call last):
  File "/workspace/MONAI/monai/data/utils.py", line 257, in list_data_collate
    return default_collate(data)
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 73, in default_collate
    return {key: default_collate([d[key] for d in batch]) for key in elem}
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 73, in <dictcomp>
    return {key: default_collate([d[key] for d in batch]) for key in elem}
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 83, in default_collate
    return [default_collate(samples) for samples in transposed]
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 83, in <listcomp>
    return [default_collate(samples) for samples in transposed]
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 73, in default_collate
    return {key: default_collate([d[key] for d in batch]) for key in elem}
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 73, in <dictcomp>
    return {key: default_collate([d[key] for d in batch]) for key in elem}
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 73, in default_collate
    return {key: default_collate([d[key] for d in batch]) for key in elem}
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 73, in <dictcomp>
    return {key: default_collate([d[key] for d in batch]) for key in elem}
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 81, in default_collate
    raise RuntimeError('each element in list of batch should be of equal size')
RuntimeError: each element in list of batch should be of equal size

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/worker.py", line 202, in _worker_loop
    data = fetcher.fetch(index)
  File "/opt/conda/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 47, in fetch
    return self.collate_fn(data)
  File "/workspace/MONAI/monai/data/utils.py", line 266, in list_data_collate
    raise RuntimeError(re_str)
RuntimeError: each element in list of batch should be of equal size

Issue Analytics

State:
Created 3 years ago
Comments:9 (9 by maintainers)

Top GitHub Comments

1reaction

rijobrocommented, Mar 17, 2021

Thanks for bringing this to my attention, I’ll sort it first thing tomorrow!

1reaction

drbehcommented, Mar 17, 2021

When I checkout the commit just before PR#1778, all goes back to normal and works as before (46154ec78fb41680561fe275068c52dcd073faa5).

commit cf3bd1a82869dfcde8db9c8f7be99a50abd81811
Author: Richard Brown <33289025+rijobro@users.noreply.github.com>
Date:   Wed Mar 17 12:43:10 2021 +0000

    Inverse Zoomd and RandZoomd (#1778)
    
    Zoomd and RandZoomd

commit 46154ec78fb41680561fe275068c52dcd073faa5
Author: Richard Brown <33289025+rijobro@users.noreply.github.com>
Date:   Wed Mar 17 10:38:44 2021 +0000

    Inverse Resized (#1780)
    
    Signed-off-by: Richard Brown <33289025+rijobro@users.noreply.github.com>