A combination of outdoor air and fan technology cools water in a closed loop system to remove the heat generated by the computer’s processors two adiabatic coolers adjacent to the module are used to cool the water loop when the ambient air temperature is too high. The module containing Aitken uses an innovative cooling method uniquely suited to the San Francisco Bay Area’s temperate weather. The research is also helping to guide science planning for several upcoming heliophysics missions, including HelioSwarm, the Solar-Terrestrial Observer for the Response of the Magnetosphere (STORM), and the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS). This work enables scientists to interpret and analyze observational data obtained by NASA’s Magnetospheric Multiscale (MMS) Mission spacecraft, and supports the development of predictive capabilities such as space weather forecasts. Scientists at NASA Goddard are running cutting-edge kinetic plasma simulations on Aitken to learn more about the structures and dynamics of magnetic reconnection-the way the Sun’s magnetic fields connect and disconnect with those of Earth’s magnetosphere. Results provide a more complete picture of the extreme conditions of the launch environment, helping NASA reduce mission risk by increasing safety, and potentially saving significant amounts of time and money. Their high-resolution simulations-which run for weeks across thousands of Aitken’s cores-predict aerodynamic loads on the launch vehicle, mobile launcher, tower structures, and flame trench, and include the water effects from the launch pad’s sound suppression system. For example, aerospace engineers at Ames are supporting upcoming Artemis missions by simulating the launch environment at Kennedy Space Center. The MSF site is planned to support up to 16 modules for computing and data systems. Chris Tanner, Derek Shaw, Marco Librero, NASA/AmesĪitken is a key resource for hundreds of NASA-associated scientists and engineers working on projects across all of the agency’s mission directorates. Aitken is housed in the first module of NASA’s Modular Supercomputing Facility (MSF). This sizeable enhancement-a 16% increase in performance since its previous expansion, and a 49% increase since last year, when the system was ranked at number 72 on the June 2021 Top500 list-translates to solving larger problems with faster results for important NASA research projects in aeronautics, space exploration, Earth science, and astrophysics.Įnabling NASA Science and Exploration The Aitken supercomputer contains twelve HPE Apollo 9000 racks providing 2,048 AMD EPYC 7742 “Rome” nodes, with 128 cores per node, and four HPE E-Cells providing 1,152 Intel “Cascade Lake” nodes, with 40 cores per node. Coming in at number 58 on the June 2022 Top500 list of the world’s most powerful supercomputers, Aitken’s theoretical peak performance is now 13.12 petaflops (quadrillion floating-point operations per second). The addition of four new HPE Apollo system racks containing 512 Rome nodes brings Aitken’s total node count to 3,200-with 308,224 cores-and fills up the first module of the MSF, which was deployed in August 2019. Both systems are located at the NASA Advanced Supercomputing (NAS) facility at Ames Research Center in Silicon Valley, Calif., where Aitken is installed in the energy-efficient Modular Supercomputing Facility (MSF). JWith its latest expansion, the Aitken supercomputer became NASA’s most powerful high-performance computing (HPC) system-surpassing the agency’s longtime HPC workhorse, Pleiades, which held the title for 14 years after its deployment in 2008. Since 1987 - Covering the Fastest Computers in the World and the People Who Run Them
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