MarsSeed [1] filed a deletion request for caffe-opencl-git [2]: The opencl branch has not been changed since 2018, and its developer said that year that they won't have more time to continue working on it. [a] [b] The master branch is 2 years newer. [c] [a]: https://github.com/BVLC/caffe/tree/opencl [b]: https://github.com/BVLC/caffe/pull/6427#issuecomment-429127985 [c]: https://github.com/BVLC/caffe/tree/master [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/caffe-opencl-git/