cuda.pathfinder.get_cuda_path_or_home

cuda.pathfinder.get_cuda_path_or_home() → str | None

Get CUDA Toolkit path from environment variables.

Returns the value of CUDA_PATH or CUDA_HOME. If both are set and differ, CUDA_PATH takes precedence and a warning is issued.

The result is cached for the process lifetime. The first call determines the CUDA Toolkit path, and subsequent calls return the cached value.

Returns:

Path to CUDA Toolkit, or None if neither variable is set or all are empty.

Warning

UserWarning: If multiple CUDA environment variables are set but point to

different locations (only on the first call).