joddiy opened a new issue #635: cannot init scalar tensor
URL: https://github.com/apache/singa/issues/635
 
 
   Hi, @dcslin , since some onnx models need scalar-tensor but we can't support.
   
   The error is:
   > Traceback (most recent call last):
     File "../../test/python/test_operation.py", line 4015, in test_tmp
       x = tensor.from_numpy(x)
     File "/usr/local/lib/python3.5/dist-packages/singa/tensor.py", line 766, 
in from_numpy
       ret.copy_from_numpy(np_array)
     File "/usr/local/lib/python3.5/dist-packages/singa/tensor.py", line 307, 
in copy_from_numpy
       assert np_array.size == self.size(), 'tensor shape should be the same'
   AssertionError: tensor shape should be the same
   
   please use this test case:
   ```python3
   x = np.array(256, ndmin=0).astype(np.int32)
   x = tensor.from_numpy(x)
   ```

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