Apply device context when converting to torch tensors #135
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Similar to #132 but this PR applies the
torch.cuda.device
context only when converting numpy/cupy arrays to torch tensors. Unlike #132, it doesn't usecupy.cuda.Device
, which did not work with tensorflow as discovered in Models multi-gpu tests.Note: In addition to the fix in this PR, users have to set
cupy.cuda.Device()
manually. See here for details. Follow-up: Enable setting device in Core/Dataset. Add 2GPU unit tests in dataloader.