pytorch

5fb11427 - Add CSR (compressed sparse row) layout for sparse tensors (#50937)

Add CSR (compressed sparse row) layout for sparse tensors (#50937) Summary: Implement compressed sparse row format. Derived from the GCS implementation at https://github.com/pytorch/pytorch/pull/44190 Pull Request resolved: https://github.com/pytorch/pytorch/pull/50937 Reviewed By: mrshenli Differential Revision: D27439865 Pulled By: ezyang fbshipit-source-id: 3ba3dcb9679505b980ff6a5f513e913bbae2fb1d