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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/04/20 20:50:38 UTC

[GitHub] [incubator-mxnet] leezu commented on issue #18105: [Gluon] Deferred initialization error of dynamic shape operators

leezu commented on issue #18105:
URL: https://github.com/apache/incubator-mxnet/issues/18105#issuecomment-616801781


   This is expected and one motivation for adding `HybridBlock.forward` based on deferred compute.
   In that case, you can implement `HybridBlock.infer_shape` and work around that by it's very nature, the backend can't do shape inference on dynamic shape operators.
   
   You can also implement `HybridBlock.infer_shape` without using deferred compute interface, but then you'll get a symbol as input to `HybridBlock.infer_shape` and that may not help you to manually set the parameter shape..


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