November 2016

Conference Paper

Evaluating and Optimizing the NERSC Workload on Knights Landing

By:
Barnes, Taylor; Cook, Brandon; Doerfler, Douglas; Friesen, Brian; He, Yun; Kurth, Thorsten; Koskela, Tuomas; Lobet, Mathieu; Malas, Tareq; Oliker, Leonid; Ovsyannikov, Andrey; Sarje, Abhinav; Vay, Jean-Luc; Vincenti, Henri; Williams, Samuel; Carrier, Pierre; Wichmann, Nathan; Wagner, Marcus; Kent, Paul R; Dennis, John; Kerr, Christopher
Page Number:
43-53
Volume:
N/A
Publication Date:
November 2016
Conference Name:
Supercomputing
Conference Location:
Salt Lake City, Utah, United States of America

Abstract

NERSC has partnered with 20 representative application teams to evaluate performance on the Xeon-Phi Knights Landing architecture and develop an application-optimization strategy for the greater NERSC workload on the recently installed Cori system. In this article, we present early case studies and summarized results from a subset of the 20 applications highlighting the impact of important architecture differences between the Xeon-Phi and traditional Xeon processors. We summarize the status of the applications and describe the greater optimization strategy that has formed.

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