leezu commented on issue #18004: Wrong result when using new numpy ffi in 
deferred compute
URL: 
https://github.com/apache/incubator-mxnet/issues/18004#issuecomment-611770593
 
 
   Thanks for reporting the issue. I can confirm that disabling the new FFI for 
`tril` via below patch avoids the issue. I'll take a look why the two FFIs 
behave differently
   
   ``` diff
   diff --git a/python/mxnet/ndarray/numpy/_op.py 
b/python/mxnet/ndarray/numpy/_op.py
   index 4820f56f3..8ff7ba073 100644
   --- a/python/mxnet/ndarray/numpy/_op.py
   +++ b/python/mxnet/ndarray/numpy/_op.py
   @@ -2051,7 +2051,7 @@ def tril(m, k=0):
               [ 7.,  8.,  0.],
               [10., 11., 12.]])
        """
   -    return _api_internal.tril(m, k)
   +    return _npi.tril(m, k)
   
   
    def _unary_func_helper(x, fn_array, fn_scalar, out=None, **kwargs):
   ```

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