如何解决Jupyter Notebook安装Nervana Aeon时的CMAKE_C_COMPILER错误

Hey there, let's work through this compiler issue you hit while installing Nervana Aeon. The error messages make it clear: CMake can't find your C/C++ compilers (cl and clang++) because your Jupyter Notebook terminal isn't running in an environment that has access to Visual Studio's build tools. Here's how to fix it:

1. Use the Visual Studio Command Prompt (Simplest Solution) #

Windows requires you to run CMake commands in a shell that has the Visual Studio compiler environment set up. The easiest way is to use the official Visual Studio Command Prompt:

• Open your Start Menu and search for x64 Native Tools Command Prompt for Visual Studio [your version] (e.g., "x64 Native Tools Command Prompt for VS 2022").
• Navigate to your aeon directory using cd commands (same path you used in Jupyter).
• Re-run your installation commands, making sure to fix the last pip3 install command (you missed the . to install from the current build directory):

  pip3 install -r requirements.txt
  mkdir -p build && cd build
  cmake ..
  pip3 install .
  

This command prompt automatically runs vcvarsall.bat, which sets up all the environment variables CMake needs to find the cl compiler.

2. Manually Specify Compiler Paths (If You Prefer Jupyter) #

If you want to keep working in Jupyter Notebook, you can tell CMake exactly where your Visual Studio compiler is located:

• First, find the full path to cl.exe on your system. For Visual Studio 2022 Community Edition, it's usually something like:
  C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.38.33130\bin\Hostx64\x64\cl.exe
  (Adjust the version number and edition to match your installed Visual Studio.)
• Modify your CMake command to include the compiler paths:

  mkdir -p build && cd build
  cmake .. -DCMAKE_C_COMPILER="C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.38.33130/bin/Hostx64/x64/cl.exe" -DCMAKE_CXX_COMPILER="C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.38.33130/bin/Hostx64/x64/cl.exe"
  pip3 install .
  

3. Verify You Have the Right Visual Studio Components #

If you still get errors, double-check that you installed the C++ development tools in Visual Studio:

• Open the Visual Studio Installer and select "Modify" for your installed Visual Studio version.
• Make sure the Desktop development with C++ workload is checked (this includes the cl compiler and other necessary build tools).
• Click "Modify" to install any missing components.

内容的提问来源于stack exchange，提问作者Moona