Add GPU Wavelet transform support. #338
Merged
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This PR add a new optional library for computing wavelet on GPU, using the pytorch wavelet toolbox. In order to make things easier, a wrapper using cupy is also provided.
The current support for GPU array (e.g. using cupy instead of numpy) is not possible everywhere yet. I propose that we tackle each operators/group of operator separatly. A possible way of doing is shown for
SparseThreshold
but maybe a more generic way is possible (using a decorator maybe?).