March 2026

Conference Paper

Frontier: Exploring Exascale

By:
Atchley, Edward S; Zimmer, Christopher J; Lange, John R; Bernholdt, David E; Melesse Vergara, Veronica G; Beck, Thomas L; Brim, Michael J; Evans, Thomas M; Budiardja, Reuben D; Chandrasekaran, Sunita; Eisenbach, Markus ; Ezell, Matthew A; Frontiere, Nicholas; Georgiadou, Antigoni ; Glenski, Joe; Grete, Philipp; Hamilton, Steven P; Holmen, John K; Huebl, Axel; Jacobson, Daniel A; Joubert, Wayne D; McMahon, Kim; Merzari, Elia; Moore, Stan; Myers, Andrew; Nichols, Dudley S; Oral, Hakki S; Papatheodore, Thomas; Perez, Danny; Rogers, David M; Schneider, Evan; Vay, Jean-Luc; Yeung, Pui-Kuen
Page Number:
48-60
Issue Number:
1
Book Title:
SC '23: Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis
Publication Date:
March 12, 2026
Publisher Location:
Association for Computing Machinery, New York, New York, United States of America
Conference Name:
The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC23)
Conference Location:
Denver, Colorado, United States of America
Conference Sponsor:
Association for Computing Machinery
View DOI Listing:
https://doi.org/10.1109/MCSE.2024.3383799

Abstract

As the US Department of Energy (DOE) computing facilities began deploying petascale systems in 2008, DOE was already setting its sights on exascale. In that year, DARPA published a report on the feasibility of reaching exascale. The report authors identified several key challenges in the pursuit of exascale including power, memory, concurrency, and resiliency. That report informed the DOE's computing strategy for reaching exascale. With the deployment of Oak Ridge National Laboratory's Frontier supercomputer, we have officially entered the exascale era. In this paper, we discuss Frontier's architecture, how it addresses those challenges, and describe some early application results from Oak Ridge Leadership Computing Facility's Center of Excellence and the Exascale Computing Project.