add configurable prefix (#2625)
Summary:
Pull Request resolved: https://github.com/pytorch/benchmark/pull/2625
X-link: https://github.com/pytorch/pytorch/pull/157678
# Why
make experiments easier to find
# What
- dynamo config to provide a prefix
- use the prefix when sending data to scuba through the self.id_ field
Reviewed By: stashuk-olek
Differential Revision: D77837550
fbshipit-source-id: 12f4fff88353aaa6b2f9979f676980768dfebfa1
