Using cupy

CuPy is an open-source array library for GPU-accelerated computing with Python with a strong focus on NVidia GPUs made by Preferred Networks

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It’s meant to be used in codebases which have been developed using numpy and scipy before to allow the transition for using the GPU.

Therefore the interface is very similar to numpy and the code does not need to change very much.

Quite often the only necessary change is to switch the namespace from np to cp.