python

PyTorch Mixed Device Tensors

RuntimeError: Expected all tensors to be on the same device, but found at least two devices

Fixes

1.Move all tensors to same device with .to(device)
2.Check model.device and input.device match
3.Use model.parameters() to verify all params on same device

pytorchcudadevice

Related Errors

Asyncio event loop already running

RuntimeError: This event loop is already running

•Use nest_asyncio.apply() to allow nested event loops
•Use asyncio.run_coroutine_threadsafe() instead of asyncio.run()

Coroutine never awaited

RuntimeWarning: coroutine '.*' was never awaited

•Add 'await' before the coroutine call
•Use asyncio.create_task() to schedule the coroutine

Asyncio task was cancelled

asyncio\.CancelledError

•Handle CancelledError in try/except within the task
•Use asyncio.shield() to protect critical sections from cancellation