Oak Ridge Leadership Computing Facility
The Oak Ridge Leadership Computing Facility (OLCF), formerly the National Leadership Computing Facility, is a designated user facility operated by Oak Ridge National Laboratory and the Department of Energy. It contains several supercomputers, the largest of which is an HPE OLCF-5 named Frontier, which was ranked 1st on the TOP500 list of world's fastest supercomputers as of June 2023.
Source: Wikipedia — Oak Ridge Leadership Computing Facility (CC BY-SA 4.0)