Supercomputers Theta and Summit (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption Supercomputers Theta and Summit. Credit Photos courtesy of Argonne Leadership Computing Facility and Oak Ridge Leadership Computing Facility. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.