ChaiBapchya commented on issue #17239: Cmake with NCCL flag does not work. URL: https://github.com/apache/incubator-mxnet/issues/17239#issuecomment-573497187 I took a look at To solve this particular case, I added a check for symlink (if UNIX) - https://github.com/ChaiBapchya/incubator-mxnet/blob/nccl_autodetect/cmake/Modules/FindNCCL.cmake However, I'm not sure if it is complete. Coz I took a look at https://github.com/apache/incubator-mxnet/blob/master/cmake/Modules/FindCUDAToolkit.cmake It has a fairly long drawn way of finding the Cuda Toolkit 1. Language / user provided path 2. If cuda_root cmake/env not specified, check - check symlink - check platform default Is this what's needed? @leezu @apeforest In that case it makes sense to "factor" out this check as it will be used at 2 places (findCudatoolkit and findNCCL)
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