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Fix2 select_device() for Multi-GPU #6461

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Merged
glenn-jocher merged 6 commits into from
Jan 28, 2022
Merged

Fix2 select_device() for Multi-GPU #6461

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58c404d
Fix2 select_device() for Multi-GPU
glenn-jocher Jan 28, 2022
881411d
Cleanup
glenn-jocher Jan 28, 2022
547d373
Cleanup
glenn-jocher Jan 28, 2022
194ea1a
Simplify error message
glenn-jocher Jan 28, 2022
36bb7ed
Improve assert
glenn-jocher Jan 28, 2022
09980a6
Update torch_utils.py
glenn-jocher Jan 28, 2022
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@glenn-jocher
glenn-jocher committed Jan 28, 2022
commit 36bb7eda33cd392b8720dc7badc110ad7e6a3b99
2 changes: 1 addition & 1 deletion utils/torch_utils.py
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Expand Up @@ -72,7 +72,7 @@ def select_device(device='', batch_size=0, newline=True):
os.environ['CUDA_VISIBLE_DEVICES'] = '-1' # force torch.cuda.is_available() = False
elif device: # non-cpu device requested
os.environ['CUDA_VISIBLE_DEVICES'] = device # set environment variable - must be before assert is_available()
assert torch.cuda.is_available(), \
assert torch.cuda.is_available() and torch.cuda.device_count() >= len(device.replace(',', '')), \
f"Invalid CUDA '--device {device}' requested, use '--device cpu' or pass valid CUDA device(s)"

cuda = not cpu and torch.cuda.is_available()
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