Environment Variables¶

Build-Time Environment Variables¶

CUDA_HOME or CUDA_PATH: Specifies the location of the CUDA Toolkit.
CUDA_PYTHON_PARSER_CACHING : bool, toggles the caching of parsed header files during the cuda-bindings build process. If caching is enabled (CUDA_PYTHON_PARSER_CACHING is True), the cache path is set to ./cache_<library_name>, where <library_name> is derived from the cuda toolkit libraries used to build cuda-bindings.
CUDA_PYTHON_PARALLEL_LEVEL (previously PARALLEL_LEVEL) : int, sets the number of threads used in the compilation of extension modules. Not setting it or setting it to 0 would disable parallel builds.

CUDA_PYTHON_CUDA_PER_THREAD_DEFAULT_STREAM : When set to 1, the default stream is the per-thread default stream. When set to 0, the default stream is the legacy default stream. This defaults to 0, for the legacy default stream. See Stream Synchronization Behavior for an explanation of the legacy and per-thread default streams.