fix description of CUDA_PATH environment variable
@@ -4,6 +4,13 @@ Environment variables
Here are the environment variables CuPy uses.
++------------------------------------+----------------------------------------------------+
+| ``CUDA_PATH`` | Path to the directory containing CUDA. |
+| | The parent of the directory containing ``nvcc`` is |
+| | used as default. |
+| | When ``nvcc`` is not found, ``/usr/local/cuda`` is |
+| | used. |
+| | See :ref:`install_cuda` for details. |
+------------------------------------+----------------------------------------------------+
| ``CUPY_CACHE_DIR`` | Path to the directory to store kernel cache. |
| | ``${HOME}/.cupy/kernel_cache`` is used by default. |
@@ -27,10 +34,7 @@ For install
These environment variables are only used during installation.
+---------------+---------------------------------------------------------------------+
-| ``CUDA_PATH`` | Path to the directory containing CUDA. |
-| | The parent of the directory containing ``nvcc`` is used as default. |
-| | When ``nvcc`` is not found, ``/usr/local/cuda`` is used. |
-| | See :ref:`install_cuda` for details. |
+| ``CUDA_PATH`` | See the description above. |
+---------------+---------------------------------------------------------------------+
| ``NVCC`` | Define the compiler to use when compiling CUDA files. |
+---------------+---------------------------------------------------------------------+
