Tech Exchange

Technologies for Large-Scale Numerical Simulation

NASA Ames Research Center is home to the world’s seventh most powerful supercomputer, Pleiades. Named after the star cluster, it represents NASA’s state-of-the-art technology for meeting the agency’s supercomputing requirements, enabling NASA scientist s and engineers to conduct modeling and simulation for NASA missions. As one of the most powerful general-purpose supercomputers ever built, Pleiades has the computing power equivalent to that of 41,000 MacBook Pros.

altAt Ames, where complex mathematical models and huge data sets are the norm, Pleiades goes through constant expansions and upgrades to help solve problems across NASA’s mission areas: aeronautics research, human exploration and operations, and Earth and space science. NASA scientists and engineers are increasingly turning to large-scale numerical simulation on supercomputers to advance their understanding of complex aerospace, Earth, and astrophysical systems. To meet these demands, efforts are underway to improve the productivity of NASA’s supercomputing users, as well as to accelerate advancement of NASA science and engineering at the Center.

Technology Needs

altNASA’s high-end computing (HEC) facilities are continually challenged to purchase, power, and cool sufficient HEC resources to keep up with equally rapidly growing user demands. As a result, the Center is constantly looking for more efficient and effective supercomputing approaches to supply increased HEC capability or capacity per dollar and/or per Watt for NASA applications. Examples include:

• Novel computational accelerators and architectures.
• Enhanced visualization technologies.
• Improved algorithms for heavily used application software.
• Power-aware “green” computing technologies and techniques.
• Systems (including both hardware and software) for data-intensive computing.
• Approaches to effectively manage and utilize many-core processors, including algorithmic changes, compiler techniques, and runtime systems.

Improving the user’s productivity environment is also critical. What is needed are more intuitive, intelligent, user-customizable, and integrated interfaces to supercomputing resources, enabling users to more completely leverage the power of HEC to increase their productivity. Such interfaces could enhance many essential supercomputing tasks, including:

• Accessing and managing resources
• Training
• Getting services
• Developing software (e.g., debugging and performance analysis)
• Running computations
• Managing files and data
• Analyzing and visualizing results
• Transmitting data
• Collaborating

HEC interfaces and environments designed to run on handheld devices and tablets are also of interest.

Cloud computing has demonstrated tremendous success in providing easy access to computing resources, data storage, and widely used software. Officials at Ames are seeking technologies that would enable beneficial features of cloud computing to be offered as part of NASA’s supercomputing operations and services. Such beneficial features might include more open account granting, user-customized software environments, support for long-running jobs (e.g., Web applications and services) , real-time access to external Web resources and services, and reduced job failure due to system issues.

More Information

For more information, contact Andrew Vo, Marketing Coordinator, at Andrew.vo@nasa. gov or 650-604-0004; visit http://technology.arc.nasa.gov; or email This email address is being protected from spambots. You need JavaScript enabled to view it. .