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2864 Enhance the doc-string of ToDevice transform #2874

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Merged
merged 5 commits into from
Aug 31, 2021
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2864 Enhance the doc-string of ToDevice transform #2874

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42a45e0
Merge pull request #19 from Project-MONAI/master
Nic-Ma Feb 1, 2021
cd16a13
Merge pull request #32 from Project-MONAI/master
Nic-Ma Feb 24, 2021
6f87afd
Merge pull request #180 from Project-MONAI/dev
Nic-Ma Jul 22, 2021
b56e088
Merge pull request #209 from Project-MONAI/dev
Nic-Ma Aug 31, 2021
b241ff5
[DLMED] enhance doc-string of ToDevice
Nic-Ma Aug 31, 2021
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6 changes: 6 additions & 0 deletions monai/transforms/utility/array.py
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Expand Up @@ -1075,6 +1075,12 @@ class ToDevice(Transform):
Move PyTorch Tensor to the specified device.
It can help cache data into GPU and execute following logic on GPU directly.

Note:
If moving data to GPU device in the multi-processing workers of DataLoader, may got below CUDA error:
"RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing,
you must use the 'spawn' start method."
So usually suggest to set `num_workers=0` in the `DataLoader` or `ThreadDataLoader`.

"""

def __init__(self, device: Union[torch.device, str], **kwargs) -> None:
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