Zha0q1 opened a new issue #20453:
URL: https://github.com/apache/incubator-mxnet/issues/20453


   Hi MXNet community, 
   
   I am opening this issue to track the development progress of the onnx export 
module, mx2onnx, on MXNet 2.0.
   
   In MXNet 1.x, mx2onnx covers popular operators that's exposed under the 
`Symbol` namespace, and the operator unit tests utilize Gluon blocks to 
construct test models that consist of only one operator. However, in MXNet 2.0, 
the development has steered toward NumPy compatible operators and NumPy 
Extension operators and Gluon also moves on from using the `Symbol` namespace. 
With that said, mx2onnx will be consistent with this design choice and move 
toward support operators exposed under the `mx.np` and `mx.npx` namespaces.
   
   Here's a [PR](https://github.com/apache/incubator-mxnet/pull/20355) to 
forward port mx2onnx from v1.x to master. This PR also adapts existing operator 
conversion functions to their equivalent `np` or `npx` operators whenever 
possible. With this PR we now support the following operators
   ```
   ## np
   absolute
   zeros
   ones
   zeors_like
   ones_like
   full_like
   arange
   reshape(naive support)
   concatenate
   transpose
   expand_dims
   add
   equal (missing scalar case)
   not_equal (missing scalar case)
   greater (missing scalar case)
   less (missing scalar case)
   greater_equal (missing scalar case)
   less_equal (missing scalar case)
   minimum
   maximum
   where
   add 
   subtract 
   multiply 
   divide 
   power
   argmin
   argmax
   minimum
   maximum
   min
   max
   mean
   sum
   prod
   mod
   swapaxes
   log2
   reciprocal
   power
   sqrt
   square
   logical_and
   logical_xor
   logical_or
   broadcast_to
   clip
   logical_not
   tile
   sin
   cos
   tan
   tanh
   arcsin
   arccos
   arctan
   exp
   log
   ceil
   floor
   squeeze
   negative
   
   ## npx
   slice
   arange_like
   layer_norm
   sequence_mask
   reshape(naive support)
   fully_connected
   leaky_relu
   activation
   dropout
   cast
   softmax
   box_nms
   broadcast_greater
   topk
   box_decode
   reshape_like
   gather_nd
   slice_channel
   broadcast_like
   pooling
   roi_pooling
   convolution
   decovolution
   pad
   instance_norm
   shape_array
   log_softmax
   norm
   sequence_reverse
   one_hot
   batch_norm
   slice_channel
   ```
   
   Further works on mx2onnx should include:
   1. Add more conversion functions for the rest of `np` and `npx` operators so 
we have a better coverage
   2. Add model level tests. Currently we only have operator unit tests as 
there are no model developed with only the new `np` and `npx` operators.
   3. Code clean up: we can remove the deprecated operator conversion functions 


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