[GitHub] [incubator-mxnet] matteosal commented on issue #14983: Bug with arange inside a foreach

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matteosal commented on issue #14983: Bug with arange inside a foreach
URL: https://github.com/apache/incubator-mxnet/issues/14983#issuecomment-493666085
 
 
   > Thanks for raising this! I am not super familiar with the arange operator, but through the error message, I saw its attributes like "start = 0, infer_range = true". I got a little bit confused so would love to confirm with you...Is it indicating that it is trying to generate [0, 0)?
   > 
   > Thank you so much!
   
   No, it means it is inferring the end of the interval from its output size, that is the input size of the node it's attached to: operator `elemwise_add` named `.Parameters.Net.Nodes.2$8`. So `arange` should generate [0, n), where n is the input length of `.Parameters.Net.Nodes.2$8`.
   That should, in turn, infer its input shape from the output of the `broadcast_like` op named `.Parameters.Net.Nodes.2$7`, but apparently something is going wrong in the process.

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