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Modeling & Simulation NAS High-End Computing Environment Facts National Aeronautics and Space Administration NAS expertise in fundamental and applied Pleiades modeling and simulation is essential to creating • Primary production system for all NASA mission directorates large-scale simulations supporting critical • SGI ICE X cluster connected via InfiniBand in an 11D hypercube topology NASA engineering and design decisions. Our • 126,720 cores ( Xeon quad-, six-, and eight-core processors) fundamental research advances numerical • 1.75 petaflop/s peak; 1.24 petaflop/s sustained performance (June 2012) methods, algorithms, and code development • 233 terabytes total memory for aeronautics research, while applied • 64 nodes enhanced with Nvidia graphics processing units modeling enables large-scale numerical

simulations in several important mission areas. hyperwall-2 • 128-screen, tiled LCD wall displays, processes, and shares data—can display a single image across In support of NASA’s project to design the all screens, or can display unique images in selected “cells” heavy-lift Space Launch System, NAS compu- • Custom Colfax International system connected to Pleiades via InfiniBand NASA ADVANCED SUPERCOMPUTING DIVISION tational fluid dynamics experts developed (over 100 gigabytes-per-second connectivity) specialized software and performed thousands • 128 nodes; 2 quad-core (AMD Opteron 2354) processors per node of simulations to analyze aerodynamic • 136 Nvidia Fermi GTX 480 processors characteristics for proposed designs of this • 2 terabytes total system memory; 208 gigabytes GDDR5 graphics memory NASA next-generation vehicle. Storage Advanced Supercomputing for Today and Tomorrow • Online and archive systems to store and retrieve science and engineering results • 2 SGI 4700 mass storage systems Supercomputing The NAS approach to real-world supercomputing integrates the latest technology with multi- • 115-petabyte archival storage capacity level security and 24x7 user support to provide a reliable and accessible computing experience. • 10-petabyte RAID disk capacity on floor; 17 petabytes of unique data on tape Division This empowers our customers to meet their science and engineering goals while reducing cost, Networks risk, and development time. • World’s largest InfiniBand network, with over 65 miles of cabling connecting Pleiades, hyperwall-2, and storage systems With our recent expansion to Pleiades just completed to meet near-term needs, we have begun • Cisco Systems local area network, with 10-gigabit backbone supporting both 1G and 10G hosts evaluating next-generation technologies to address emerging customer requirements. • 914 total active ports; 838 gigabit Ethernet ports, 76 10-gigabits-per-second Ethernet ports • Maximum bandwidth: 1.6 terabytes per second Together with our industry, university, and government partners, the NAS Division remains committed to supporting current and future Agency missions. For the latest system updates see: http://www.nas.nasa.gov/hecc/resources/environment.html

Contact Us To learn more about how about our high-end computing resources and customizable services NASA Advanced Supercomputing Division can impact your NASA science and engineering sponsored projects, please contact: NASA Mail Stop 258-6 Rupak Biswas Bill Thigpen Moffett Field, CA 94035-1000 NAS Division Chief NAS Systems & Engineering Branch Chief Phone: (650) 604-4502 (650) 604-4411 (650) 604-1061 FAX: (650) 604-4377 rupak.biswas@.gov [email protected] www.nas.nasa.gov

NP-2010-12-02-ARC Summer 2012 www.nasa.gov

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NASA Advanced Supercomputing Division End-to-End Network Support Scientific Visualization Delivering Powerful and Reliable NAS network engineers provide custom, The NAS visualization environment connects end-to-end support services that help users Pleiades to our locally developed hyperwall-2 efficiently transfer their massive datasets, system via high-speed InfiniBand, forming a Computing Solutions for NASA Missions often many terabytes in size. The outcome: unique heterogeneous cluster enabling concur- The NASA Advanced Supercomputing (NAS) Division at Ames Research Center is known more computational runs, reduced time-to- rent visualization, through which scientists can worldwide for its innovation and expertise in high-end computing (HEC). solution, and faster turnaround of view simulation results in real time. scientific results. To help achieve exceptional performance and ground- With significant support from our “vis” breaking results for NASA’s scientific and engineering This image of the “cosmic web” is from an specialists, researchers on NASA Langley users, we combine cutting-edge HEC technology and unprecedented Bolshoi simulation, which Research Center’s Airframe Noise Team techniques with an emphasis on providing reliable, models the role of dark matter in galaxy discovered new features in simulations of the real-world production capability. formation. Using NAS’ automated network complex flowfield around the nose landing flow-monitoring tool, our experts discovered gear of a jet aircraft. This new information can These snapshots of current projects highlight and helped resolve a remote network be used in future designs to reduce takeoff different aspects of our integrated approach to bottleneck, improving data transfer speeds and landing noise near airports. providing custom supercomputing solutions to by 600% for astrophysicists at New Mexico users across all NASA mission directorates. State University.

Real-World Supercomputing Creative Storage Solutions Code Performance Optimization Using Pleiades, our production , research Our mass storage capacity, currently NAS code performance experts provide a scientists supporting NASA’s Earth Science Technology Office encompassing 115 petabytes (PB) of tape variety of troubleshooting, porting, and produced cutting-edge simulations of 2008’s Cyclone Nargis. By and 10 PB of on-floor disk, is expected to optimization services—ranging from basic improving the understanding of tropical storm genesis and grow by 400% over the next three years to to comprehensive—which are designed to intensification, their work may help save lives and property from meet user needs. In addition, NAS provides enhance researchers’ productivity and future storms. custom filesystems and training to help ensure that they obtain accurate results in users manage their massive datasets less time. In the last year, we have continued to more efficiently. expand Pleiades, which now delivers Extensive code-building and troubleshooting 1.24 petaflop/s sustained perfor- For example, an astronomer at Princeton by NAS experts for scientists supporting mance. Even though these ground- University created a simulation of two NASA’s Explorer Program were key to breaking cyclone simulations used galaxies merging, which used hundreds of producing the largest 3D hybrid simulations thousands of processors, Pleiades’ terabytes of data storage. NAS support of Earth’s magnetosphere to date. This led to enhanced capacity allowed many other saved the user countless hours of data new discoveries about how space weather mission-critical jobs to run at the transfer and retrieval time. affects both our planet and critical elements same time. of global infrastructure, such as communi- cations satellites.

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