报错 The CUDA compiler identification is unknown；No CMAKE_CUDA

在cmake的编译过程中，可能会报找不到cuda编译器的错误，如下

-- The CUDA compiler identification is unknown
CMake Error at CMakeLists.txt:3 (enable_language):No CMAKE_CUDA_COMPILER could be found.Tell CMake where to find the compiler by setting either the environmentvariable "CUDACXX" or the CMake cache entry CMAKE_CUDA_COMPILER to the fullpath to the compiler, or to the compiler name if it is in the PATH.-- Configuring incomplete, errors occurred!
See also "/home/aaeon/work/yolo-tensorrt/build/CMakeFiles/CMakeOutput.log".
See also "/home/aaeon/work/yolo-tensorrt/build/CMakeFiles/CMakeError.log".

解决办法就是找到cuda编译器所在位置，然后指定给cmake。

1、找到cuda安装所在位置

查看/usr/local，该文件夹下一般保存有你下载的cuda文件以及一个cuda软连接文件，如图

其中的cuda-10.2就是我自己下载的cuda，版本是10.2；而cuda则是指向cuda-10.2的软连接文件。

当你下载多个版本的cuda时，cuda软连接文件指向其中一个你指定的cuda版本，具体哪个版本，可以输入nvcc --version查看。

2、指定cuda编译器

cmake -D CMAKE_CUDA_COMPILER="/usr/local/cuda/bin/nvcc" CMmakeLists.txt

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报错 The CUDA compiler identification is unknown；No CMAKE_CUDA_COMPILER could be found.

报错 The CUDA compiler identification is unknown；No CMAKE_CUDA_COMPILER could be found.相关推荐

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