 |
| ISSN: 1935-0570 |
Cover Story Information Technology in the Next Decade p66.
Front Cover Simulations that ran on the Franklin Cray XT at
NERSC captured the detailed structure of a lean hydrogen
flame on a laboratory-scale low-swirl burner. Image courtesy
of M. Day, LBNL (p16).
Back Cover Three-dimensional contours of the magnetic
fields produced in a core collapse supernova (type II)
simulation. This GenASiS astrophysics simulation and
visualization courtesy of E. Endeve, R. D. Budiardja, C. Y.
Cardall, A. Mezzacappa, and R. J. Toedte, all with ORNL, p68 |
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CONTENTS
NUMBER 16 Special Issue 2010 |
| 2 |
| FOREWORD |
Introducing Extreme Scale Science
The goal of the extreme scale computing initiative is to undertake a 10-year campaign to provide up to 1,000 times more powerful computing resources to meet critical DOE mission needs. |
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| 4 |
| EXASCALE FOR ENERGY |
The Role of Exascale Computing in Energy Security
 |
How will the United States satisfy energy
demand in a tightening global energy marketplace while, at the same time, reducing
greenhouse gas emissions? Exascale computing may play a crucial role in answering
that question. |
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| 20 |
| CLIMATE : THE WORLD IN BALANCE |
Exascale Supercomputing Advances Climate Research
With no less than the world at stake, exascale computing will help validate climate models and improve climate predictions.
That means global stakeholders can ask “what if?” and get the best answers science can deliver. |
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| 32 |
| BIOLOGICAL SCIENCES |
Biology and Medical Research at the Exascale
 |
Advances in computational hardware and
algorithms that have transformed areas of physics
and engineering have recently brought similar
benefits to biology and biomedical research.
Biological sciences are undergoing a revolution. |
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| 40 |
| NATIONAL SECURITY |
Extreme Scale Computing to Secure the Nation
Computational simulation has been, and will continue to be, an
essential element of U.S. national security programs. Since its
inception, the NNSA ASC program has been driven by the need to
ensure the safety, reliability, and performance of the nation’s nuclear
weapons stockpile without nuclear testing. |
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| 52 |
| HARDWARE |
Paving the Roadmap to Exascale
Petascale capability has kindled a new excitement in the science community. With Jaguar enabling petascale science today, computer scientists are starting to look ahead to the next decade and ask, what will it take to enable sustained exascale science? |
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| 60 |
| SOFTWARE |
Software Challenges at Extreme Scale
 |
Although there are significant differences in the
software environments and requirements for the
three classes of extreme scale systems, they
share at least two critical challenges: concurrency
and energy efficiency. To address these, there are
opportunities for both software–hardware codesign
and new interfaces between applications,
system software, and hardware. |
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| 66 |
| EDITORIAL: DR. MICHAEL STRAYER |
COVER STORY |
Information Technology in the Next Decade
Dr. Michael Strayer, SciDAC Program Director and Associate Director
of Science for Advanced Scientific Computing Research, explains
how computational science and engineering opportunities at the
exascale have an enormous potential impact on advancing energy
technology and fundamental science. |
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| 68 |
| BACK COVER |
| Three-dimensional contours of the magnetic
fields produced in a core collapse supernova (type II)
simulation. This GenASiS astrophysics simulation and
visualization courtesy of E. Endeve, R. D. Budiardja, C. Y.
Cardall, A. Mezzacappa, and R. J. Toedte, all with ORNL. |
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