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Open-source project ZLUDA lets CUDA apps run on AMD GPUs
(www.cgchannel.com)
A general programming discussion community.
And subsequently: https://www.tomshardware.com/pc-components/gpus/nvidia-bans-using-translation-layers-for-cuda-software-to-run-on-other-chips-new-restriction-apparently-targets-zluda-and-some-chinese-gpu-makers
This won't really affect the development of ZLUDA much in particular, since the main developer happens to live in The Netherlands, and clean-room reverse engineering - especially for interoperability purposes - is fully protected by law in the EU.
But NVIDIA does really like to make it as much of a pain as possible to support CUDA software anywhere but for a single user on their personal consumer-grade desktop.
Good news!
My next GPU won't be an Nvidia either way, but I would definitely miss the CUDA support.