Taylor Robie 5339d534a3 Add runner for instruction count benchmarks. (#54652) ...

Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/54652

This PR adds a fairly robust runner for the instruction count microbenchmarks. Key features are:

* Timeout and retry. (In rare cases, Callgrind will hang under heavy load.)
* Robust error handling and keyboard interrupt support.
* Benchmarks are pinned to cores. (Wall times still won't be great, but it's something.)
* Progress printouts, including a rough ETA.

Test Plan: Imported from OSS

Reviewed By: pbelevich

Differential Revision: D27537823

Pulled By: robieta

fbshipit-source-id: 699ac907281d28bf7ffa08594253716ca40204ba

2021-04-05 11:18:57 -07:00

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