[GitHub] [incubator-mxnet] matteosal opened a new issue, #21135: Hangs during operator tuning & how to disable it

[GitBox <gi...@apache.org>]

matteosal opened a new issue, #21135:
URL: https://github.com/apache/incubator-mxnet/issues/21135

   We have experienced problems with the mxnet library hanging at loading time on some Linux machines, specifically during the operator tuning phase (`mxnet::op::OperatorTune`). I don't have precise information about where the hang happened exactly and the machine details, but on a CentOS system we could avoid the hang by setting the environment variable `MXNET_USE_OPERATOR_TUNING=0` before loading, while on an ARM machine we also had to rebuild the library with the cmake option `USE_OPERATOR_TUNING=OFF`.
   
   So what's the relationship between the env variable and the build option?


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