Exascale computing will transform our ability to solve some of the world's most difficult and important problems

On October 18, the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) is celebrating the fourth National Exascale Day.

The holiday was created in 2019 as an initiative of DOE’s Exascale Computing Project (ECP) and Cray, a Hewlett Packard Enterprise Company, to honor scientists and researchers who will make groundbreaking discoveries with the help of some of the fastest supercomputers in the world, such as Frontier, the world’s first exascale machine.

Frontier, an HPE Cray EX system, debuted in May 2022 as the fastest supercomputer in the world on the Top500 list. Managed by the Oak Ridge Leadership Computing Facility (OLCF), a DOE Office of Science User Facility at ORNL, Frontier is undergoing testing and acceptance in preparation for full user operations in 2023.

The performance of exascale computers is measured in exaflops. One exaflop equals one quintillion calculations per second, which is mathematically notated as 1018.

Discover Frontier and follow the journey to exascale below!


Celebrate Exascale Day

HPE: The Exascale Era Is Here

On October 18 at 1:00pm ET, HPE hosted industry experts to celebrate science, discovery, and innovation in the Exascale Era.

Exascale is Here! session featuring NCCS director Gina Tourassi.

Welcome to the Exascale Era – Twitter Spaces

At 2:00 pm ET on Thursday, October 20, join Oak Ridge, Argonne, and Lawrence Livermore National Laboratories for a live discussion about the exascale era. The event will be hosted on Twitter Spaces.

Exascale Computing Project

Explore videos, stories, and opportunities with the the Exascale Computing Project.


The Road to Exascale


Stunning Specs: Building Frontier


Frontier Videos


Frontier is managed by the Oak Ridge Leadership Computing Facility, a DOE Office of Science User Facility.