[GitHub] [incubator-mxnet] leezu opened a new pull request #17019: Fix CUDNN detection for CMake build

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

leezu opened a new pull request #17019: Fix CUDNN detection for CMake build
URL: https://github.com/apache/incubator-mxnet/pull/17019
 
 
   ## Description ##
   - Use FindCUDNN.cmake instead of the previous macro
   - Previous macro did not detect CUDNN correctly on my system (Deep Learning AMI
     Ubuntu 18.04)
   - We now explicitly fail if the user does not provide CUDNN and hasn't manually
     set -DUSE_CUDNN=0
   
   
   ## Checklist ##
   ### Essentials ###
   Please feel free to remove inapplicable items for your PR.
   - [X] Changes are complete (i.e. I finished coding on this PR)
   - [X] All changes have test coverage:
   - Unit tests are added for small changes to verify correctness (e.g. adding a new operator)
   - Nightly tests are added for complicated/long-running ones (e.g. changing distributed kvstore)
   - Build tests will be added for build configuration changes (e.g. adding a new build option with NCCL)
   - [X] Code is well-documented: 
   - For user-facing API changes, API doc string has been updated. 
   - For new C++ functions in header files, their functionalities and arguments are documented. 
   - For new examples, README.md is added to explain the what the example does, the source of the dataset, expected performance on test set and reference to the original paper if applicable
   - Check the API doc at https://mxnet-ci-doc.s3-accelerate.dualstack.amazonaws.com/PR-$PR_ID/$BUILD_ID/index.html
   - [X] To the best of my knowledge, examples are either not affected by this change, or have been fixed to be compatible with this change
   
   ### Changes ###
   - [X] Feature1, tests, (and when applicable, API doc)
   
   ## Comments ##
   CC @szha @yajiedesign @junrushao1994 

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