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2010 DOE INCITE projects allocated at ORNL
Date:2/23/2010

astrophysicists from ORNL, the University of Tennessee, Florida Atlantic University, and North Carolina State University, led by Anthony Mezzacappa, was awarded 34 million processor hours to develop three-dimensional models of core collapse supernovae. The simulations, which will include nearly all the factors likely to be important to the supernova explosion mechanism, will mark a significant step forward in core collapse supernova theory and will position the ORNL-led team to make far more realistic predictions of key observables associated with this class of stellar explosions, such as their neutrino and gravitational wave emissions and the production of elements, such as oxygen and calcium, necessary for the origin of life on Earth.

Patrick Worley leads a team of computer scientists that was awarded 20 million processor hours to maximize the utility of leadership-class computer systems. This research focuses on four primary goals: (1) updating and extending performance evaluation of all systems; (2) making performance tools available to high-end computing users, and further developing the tools to take into account the scale and unique features of the leadership-class systems; (3) validating the effectiveness of performance-prediction technologies and modifying them as necessary to improve their utility for predicting resource requirements for production runs on the leadership-class systems; and (4) analyzing and helping to optimize current or candidate leadership-class application codes.

Researchers in ORNL's Nuclear Science and Technology Division were awarded 8 million processor hours to perform nuclear reactor simulations on Boiling Water Reactor (BWR) assemblies. This allocation will enable them to develop simulations at resolutions that were previously unobtainable. The equations governing the physics in a nuclear reactor core are very complex and require tremendous computational resources, both in terms of memory and processing speed. Th
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Contact: Jim Pearce
pearcejw@ornl.gov
865-241-2427
DOE/Oak Ridge National Laboratory
Source:Eurekalert

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