We made an OpenCL implementation of blake2b-256 here (the filename does not mean it's only a SHA1 implementation): https://github.com/ndsol/git-mine/blob/maste

We made an OpenCL implementation of blake2b-256 here (the filename does not mean it's only a SHA1 implementation): https://github.com/ndsol/git-mine/blob/master/sha1.cl https://github.com/ndsol/git-mine/blob/master/sha1.cl We are considering doing a Blake3 implementation, but haven't committed to do it yet.