We continue our series of questions to track the compute used by major projects (the previously most extensive tracking, OpenAI's AI and Compute paper, only tracks projects up to the end of 2017).
This question asks about computation in PFLOP/s-days used by the version of OpenAI Five that defeated world champions OG in April 2019 (match announcement here).
The estimate should not include computation used for hyperparameter tuning and architecture search.
Resolution by paper or other reliable announcement.
The method of calculations should be as similar as possible to that used in the "AI and compute" article.
Here's a Guesstimate model for quickly thinking about the relation between compute and cost, and how it changes over time, based on Ryan Carey's estimates. I especially recommend checking out the calculators (by pressing the little calculator symbol in the menu bar), which allow you to enter a target compute/cost and find out how long until it's reached.