Returns the names of the backend used by
arrays. May be
"mixed"if any of the arrays have different labels within their structure or any arrays have different labels from each other;
None if the objects are not Awkward, NumPy, or CuPy arrays (e.g. Python numbers, booleans, strings).
Mixed arrays can’t be used in any operations, and two arrays on different devices can’t be used in the same operation.
"cuda", the package
be installed, either by
pip install awkward-cuda-kernels
or as an optional dependency with
pip install awkward[cuda] --upgrade
It is only available for Linux as a binary wheel, and only supports Nvidia GPUs (it is written in CUDA).