leezu opened a new issue #17858: dynamic load libnvrtc.so
URL: https://github.com/apache/incubator-mxnet/issues/17858
 
 
   ## Description
   Compiling MXNet with `nvrtc` support dynamically links `libcuda.so`. 
However, `libcuda.so` is part of the cuda driver and not typically available on 
cpu machines. This means, on cpu machines `libmxnet.so` will have missing 
dependencies and can't be loaded.
   
   Unfortunately, parts of MXNet compilation require to `dlopen(libmxnet.so)`. 
In particular `OpWrapperGenerator.py` for the cpp package. This breaks 
compiling mxnet with nvrtc + cpp-package on cpu machines (as used by our CI).
   
   As a workaround, the stub driver can be added to `LD_LIBRARY_PATH`. A better 
solution may be to `dlopen` libnvrtc and thereby drop the dependency on 
`libcuda.so`.
   
   CC: @ptrendx 
   
   ## References
   - https://github.com/pytorch/pytorch/issues/3395
   - https://github.com/NervanaSystems/ngraph/issues/765

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