samskalicky commented on issue #19535:
URL: 
https://github.com/apache/incubator-mxnet/issues/19535#issuecomment-728231334


   Thanks @fhieber is your approach for Sockeye's configuration file 
generalizable to something we could build in to mxnet? Can you point me to an 
example where you do this?
   
   > My main question about this though would be how exported HybridBlocks 
(i.e. SymbolBlocks) behave w.r.t changing input shapes? Before Gluon, we had to 
make heavy use of the BucketingModule in MXNet to account for varying shapes at 
inference time.
   
   Nothing would change for that problem with exporting models. The 
restrictions around input shapes is specific to the MXNet engine memory 
allocation scheme where reshaping causes re-allocation. Its much lower level in 
the stack. If you wanna discuss that lets start a separate GitHub issue.


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