pytorch

d247912d - Add no-gpu build mode for all of PyTorch and Caffe2

Add no-gpu build mode for all of PyTorch and Caffe2 Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/19687 Differential Revision: D15023347 fbshipit-source-id: 5bed0d72e8ff337e066c142ca5c8e2c2bae93746