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consider case of empty tensor (#540)

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Zengwei Yao 2022-08-22 21:42:56 +08:00 committed by GitHub
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commit c0101185d7
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icefall/diagnostics.py
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@ -130,6 +130,8 @@ class TensorDiagnostic(object):
x = x[0]
if not isinstance(x, Tensor):
return
if x.numel() == 0: # for empty tensor
return
x = x.detach().clone()
if x.ndim == 0:
x = x.unsqueeze(0)