[GitHub] szha commented on issue #8884: forward can't run parallelly using multi-gpus when custom operator using numpy

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szha commented on issue #8884: forward can't run parallelly using multi-gpus when custom operator using numpy  
URL: https://github.com/apache/incubator-mxnet/issues/8884#issuecomment-352896627
 
 
   I guess this is an artifact of GIL since the custom op code is in python. Design-wise, to circumvent the GIL one way I see is to parse the python construct and pass it to the backend, which is not easy to do.
   
   For now, if you care about performance, please write the operator in c++ instead.

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