accelerate

0aae1e93 - Include a note in the gradient synchronization docs on "what can go wrong" and show the timings (#1153)

Include a note in the gradient synchronization docs on "what can go wrong" and show the timings (#1153) * Include timing results * Don't include tilda for accelerator Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com> --------- Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>