a550461053 commented on issue #17486: Update CustomOp doc with changes for GPU support URL: https://github.com/apache/incubator-mxnet/pull/17486#issuecomment-585356310 > > Hi, @rondogency I am trying to use the dynamic operator and have some questions. > > How can we use `mxnet::NDArray` or `mshadow_op` used in xxx-inl.h of mxnet-backend operator? And I want to know how to use the `mutateInputs` function like in BatchNorm-like operators. > > Thank you very much. > > Hi @a550461053, MXNet custom operators have been designed not to integrate with any MXNet backend classes (mxnet::NDArray) to simplify building. We've designed MXTensor to be equivalent. Is there some other functionality you were wanting from NDArray thats not in MXTensor? > > The mutateInputs API allows you to do the same as the backend APIs, so you can specify the index of the input that you want to be mutable to make a BatchNorm-like operator. Ok, thank you. I want to create a custom operator calling another operator which input NDArray. Both operator is async pushed to engine, I think this way is possible. Also, I am not clear on using mutateInputs API, how and when to use it? If you can provide a example of the mutateInputs API, I will be grateful to you~
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