human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Rank, Rmax Rpeak ( Pflops ), Name, Vendor, Operating system
###Question: What is the rank of Rmax Rpeak ( Pflops ) of 17.173 20.133?
gpt
SELECT AVG Rank FROM table WHERE Rmax Rpeak ( Pflops ) = 17.173 20.133