Thanks for the reply. To tell the truth, I am working on a trial implementation for SVE. https://github.com/kawakami-k/numpy/commits/sve At this time, some test patterns still fail, so I'm fixing them. When I finish this work, I would like to contribute it to NumPy. As for my test environment, I use Fujitsu FX700 [0] that equips Fujitsu A64FX as its CPU. A64FX is based on Armv8.2-a and supports the SVE instruction set. I am not aware of any free SVE environment available in the cloud. If we can run Python and NumPy on qemu-aarch64 running on x64, can we do validation with qemu-aarch64? For example, oneDNN uses such method [1][2] to test its implementation for SVE. [0] https://www.hpcwire.com/2019/11/12/cray-fujitsu-both-bringing-fujitsu-a64fx-... [1] https://github.com/oneapi-src/oneDNN/blob/master/.github/automation/.drone.y... [2] https://cloud.drone.io/oneapi-src/oneDNN/1401