benchmark

725b72cc - Skip CPU benchmarks since we don't observe their stats (#1784)

Skip CPU benchmarks since we don't observe their stats (#1784) Summary: Save some CI time! Pull Request resolved: https://github.com/pytorch/benchmark/pull/1784 Reviewed By: xuzhao9 Differential Revision: D47737622 Pulled By: janeyx99 fbshipit-source-id: 97d8341010b28b67c8dca749a89ebe9310f5fa80