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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/07/31 20:14:36 UTC

[GitHub] [incubator-mxnet] eric-haibin-lin opened a new issue #18831: MacOS cmake build instruction broken

eric-haibin-lin opened a new issue #18831:
URL: https://github.com/apache/incubator-mxnet/issues/18831


   Following the instructions in https://github.com/apache/incubator-mxnet/blob/master/config/darwin.cmake:
   ```
   #  If you want to change the configuration, please use the following steps.
   #  Assume you are on the root directory of mxnet. First copy this file so that
   #  any local changes will be ignored by git
   #
   #  $ cp config/darwin.cmake config.cmake
   #
   #  Next modify the according entries, and then compile by
   #
   #  $ mkdir build; cd build
   #  $ cmake  ..
   #  $ cmake --build .
   ``` 
   it gives me the error below:
   ```
   CMake Error at /usr/local/Cellar/cmake/3.18.1/share/cmake/Modules/CMakeDetermineCUDACompiler.cmake:166 (message):
     Could not find nvcc, please set CUDAToolkit_ROOT.
   Call Stack (most recent call first):
     CMakeLists.txt:117 (enable_language)
   
   
   -- Configuring incomplete, errors occurred!
   See also "/Users/haibilin/dev/mxnet/build/CMakeFiles/CMakeOutput.log".
   See also "/Users/haibilin/dev/mxnet/build/CMakeFiles/CMakeError.log".
   ```
   
   It looks like the template was actually not used by CMake. Alternatively, if i use `cmake  -DUSE_CUDA=0 ..`, the nvcc error disappears. 


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[GitHub] [incubator-mxnet] leezu commented on issue #18831: MacOS cmake build instruction broken

Posted by GitBox <gi...@apache.org>.
leezu commented on issue #18831:
URL: https://github.com/apache/incubator-mxnet/issues/18831#issuecomment-668238552


   MXNet defaults to build with Cuda, even though cuda 11 no longer supports mac.
   
   https://github.com/apache/incubator-mxnet/blob/master/CMakeLists.txt#L42
   
   I recommend we default to cuda=off and rely on the `config/linux_gpu.cmake` for enabling cuda. WDYT @eric-haibin-lin?


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[GitHub] [incubator-mxnet] leezu edited a comment on issue #18831: MacOS cmake build instruction broken

Posted by GitBox <gi...@apache.org>.
leezu edited a comment on issue #18831:
URL: https://github.com/apache/incubator-mxnet/issues/18831#issuecomment-668238552


   MXNet defaults to build with Cuda, even though cuda 11 no longer supports mac.
   
   https://github.com/apache/incubator-mxnet/blob/f872b43407ccfb7d17fe7492c7d869b83194f3a6/CMakeLists.txt#L42
   
   I recommend we default to cuda=off and rely on the `config/linux_gpu.cmake` for enabling cuda. WDYT @eric-haibin-lin?


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[GitHub] [incubator-mxnet] eric-haibin-lin commented on issue #18831: MacOS cmake build instruction broken

Posted by GitBox <gi...@apache.org>.
eric-haibin-lin commented on issue #18831:
URL: https://github.com/apache/incubator-mxnet/issues/18831#issuecomment-668239805


   i think there’s some problem with cmake where it didn’t look for the right config.cmake. In this issue, darwin.cmake already set USE_CUDA=0


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[GitHub] [incubator-mxnet] leezu edited a comment on issue #18831: MacOS cmake build instruction broken

Posted by GitBox <gi...@apache.org>.
leezu edited a comment on issue #18831:
URL: https://github.com/apache/incubator-mxnet/issues/18831#issuecomment-668241079


   Did you run the `cp config/darwin.cmake config.cmake` from the mxnet root folder? If so, do you see any reason for
   
   https://github.com/apache/incubator-mxnet/blob/f872b43407ccfb7d17fe7492c7d869b83194f3a6/CMakeLists.txt#L28-L31
   
   being false?


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[GitHub] [incubator-mxnet] leezu commented on issue #18831: MacOS cmake build instruction broken

Posted by GitBox <gi...@apache.org>.
leezu commented on issue #18831:
URL: https://github.com/apache/incubator-mxnet/issues/18831#issuecomment-668241079


   Did you run the `cp config/darwin.cmake config.cmake` from the mxnet root folder?


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