How to modify Slice attribute

[salanzewei]

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Question

I want to add steps parametre in Slice node,but I can't get the Slice input parametres,how can I get the Slice input parametres and change it?

Further information

my Slice node input parametres show in the below image,what 's the meaning of const_starts__19?Shouldn't starts be 0 or 1?

when I try to get the input parametres,I only get this:inputs: ['model/p_re_lu_2/add:0', 'const_starts__19', 'const_ends__20', 'const_axes__30']how can I create Slice steps parametres and set value?

[titaiwangms]

@justinchuby Could you take this? Also, I think using IR might be pretty easy?

[justinchuby]

I think const_starts__19 is the output of a Constant node. To create steps, create a new Constant node with the desired value, then add its output as an input to the Slice node (as a high level process).

@titaiwangms currently the input list in the IR are immutable so users will need to copy the node to a new node. So that's not entirely straightforward but entirely doable.

[titaiwangms]

Python API: https://github.com/onnx/onnx/blob/main/docs/PythonAPIOverview.md

[salanzewei]

Python API: https://github.com/onnx/onnx/blob/main/docs/PythonAPIOverview.md

Thank you so much, I found onnx-graphsurgencan modify node through create a new node and replace old node.