pip install pycuda完整的报错信息：

In file included from src/cpp/cuda.cpp:4:
      src/cpp/cuda.hpp:14:10: fatal error: cuda.h: No such file or directory
         14 | #include <cuda.h>
            |          ^~~~~~~~
      compilation terminated.
      /tmp/pip-build-env-kfbzw9c9/overlay/lib/python3.8/site-packages/setuptools/command/build_py.py:207: _Warning: Package 'pycuda.cuda' is absent from the `packages` configuration.
      
############################
              # Package would be ignored #
              ############################
              Python recognizes 'pycuda.cuda' as an importable package[^1],
              but it is absent from setuptools' `packages` configuration.
      
              This leads to an ambiguous overall configuration. If you want to distribute this
              package, please make sure that 'pycuda.cuda' is explicitly added
              to the `packages` configuration field.
      
              Alternatively, you can also rely on setuptools' discovery methods
              (for example by using `find_namespace_packages(...)`/`find_namespace:`
              instead of `find_packages(...)`/`find:`).
      
              You can read more about "package discovery" on setuptools documentation page:
      
              - https://setuptools.pypa.io/en/latest/userguide/package_discovery.html
      
              If you don't want 'pycuda.cuda' to be distributed and are
              already explicitly excluding 'pycuda.cuda' via
              `find_namespace_packages(...)/find_namespace` or `find_packages(...)/find`,
              you can try to use `exclude_package_data`, or `include-package-data=False` in
              combination with a more fine grained `package-data` configuration.
      
              You can read more about "package data files" on setuptools documentation page:
      
              - https://setuptools.pypa.io/en/latest/userguide/datafiles.html
      
      
              [^1]: For Python, any directory (with suitable naming) can be imported,
                    even if it does not contain any `.py` files.
                    On the other hand, currently there is no concept of package data
                    directory, all directories are treated like packages.
              ********************************************************************************
      
      !!
        check.warn(importable)
      error: command '/usr/bin/gcc' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for pycuda
Failed to build pycuda
ERROR: Could not build wheels for pycuda, which is required to install pyproject.toml-based projects

分析得到是因为cuda.h这个头文件找不到，但是在/usr/local/include/cuda.h中是存在的，那有可能是环境变量没配好，当我使用nvcc -V报找不到命令，那应该是环境变量没有配好，那就配一下吧！

• vim ~/.bashrc

• 加入下面两行：

  export PATH=/usr/local/cuda/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda/lib64:$LD_LIBRARY_PATH

• 在更新配置文件

  source ~/.bashrc

再运行nvcc -V就会有输出信息了，安装pycuda也安装上了