New Backend support

clEsperanto now comes with support for CUDA 12 and Metal. While OpenCL remain the default backend, you can now install pyclesperanto with additional backend

pip install pyclesperanto          // only install opencl
pip install pyclesperanto[cuda]    // not available in MacOS
pip install pyclesperanto[metal]   // only available in MacOS
pip install pyclesperanto[all]     // install all possible configuration

and you can select and choose you backend at the start of the import:

import pyclesperanto as cle
cle.list_avaiable_backend()
>>> ['opencl', 'cuda']
cle.select_backend("cuda")

DLPack support

And now the Array object support DLPack which allows both way copy-free interoperability with other GPU library that uses same backend and support the same protocol (e.g. cupy, torch, ...)

import pyclesperanto as cle
import cupy as cp
cle.select_backend("cuda")
cp_array = cp.random.random((10,10), dtype=cp.float32)
cle_array = cle.from_dlpack(cp_array)

Full Changelog: https://github.com/clEsperanto/pyclesperanto/compare/0.21.4...0.22.0