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UM's CITI is part of this (though not a large part)
From: HPCwire <hpcmore@news.hpcwire.com>
DOE SCIDAC NEWS ===============================================================
[ ] M876006 ) Carnegie Mellon to Lead Petascale Data Storage Institute....6.5K
The U.S. Department of Energy (DOE) has awarded a five-year, $11
million grant to researchers at three universities and five national
laboratories to find new ways of managing the torrent of data that
will be produced by the coming generation of supercomputers.
The innovations developed by the new Petascale Data Storage Institute
will enable U.S. scientists to fully exploit the power of these new
computing systems, which will be capable of performing millions of
billions of calculations each second.
The institute combines the talents of computer scientists at Carnegie
Mellon University, the University of California at Santa Cruz and the
University of Michigan with those of researchers at the DOE's Los
Alamos, Sandia, Oak Ridge, Lawrence Berkeley and Pacific Northwest
national laboratories.
Increased computational power is necessary because scientists depend
on computer modeling to simulate extremely complicated phenomena, such
as global warming, earthquake motions, the design of fuel-efficient
engines, nuclear fusion and the global spread of disease. Computer
simulations provide scientific insights into these processes that are
often impossible through conventional observation or experimentation.
This capability is critical to U.S. economic competitiveness,
scientific leadership and national security, the President's
Information Technology Advisory Committee concluded last year.
But simply building computers with faster processing speeds -- the new
target threshold is a quadrillion (a million billion) calculations per
second, or a "petaflop" -- will not be sufficient to achieve those
goals. Garth Gibson, a Carnegie Mellon computer scientist who will
lead the data storage institute, said new methods will be needed to
handle the huge amounts of data that computer simulations both use and
produce.
"Petaflop computers will achieve their high speeds by adding
processors -- hundreds of thousands to millions of processors," said
Gibson, an associate professor of computer science. "And they likely
will require up to hundreds of thousands of magnetic hard disks to
handle the data required to run simulations, provide
checkpoint/restart fault tolerance and store the output of these
modeling experiments.
"With such a large number of components, it is a given that some
component will be failing at all times," he said.
Today's supercomputers, which perform trillions of calculations each
second, suffer failures once or twice a day, said Gary Grider, a
co-principal investigator at the Los Alamos National Laboratory. Once
supercomputers are built out to the scale of multiple petaflops, he
said, the failure rate could jump to once every few minutes. Petascale
data storage systems will thus require robust designs that can
tolerate many failures, mask the effects of those failures and
continue to operate reliably.
"It's beyond daunting," Grider said of the challenge facing the new
institute. "Imagine failures every minute or two in your PC and you'll
have an idea of how a high performance computer might be crippled. For
simulations of phenomena such as global weather or nuclear stockpile
safety, we're talking about running for months and months and months
to get meaningful results," he explained.
Collaborating members in the Petascale Data Storage Institute
represent a breadth of experience and expertise in data storage. "We
felt we needed to bring the best and brightest together to address
these problems that we don't yet know how to solve," said Grider,
leader of Los Alamos' High Performance Computing Systems Integration
Group.
Carnegie Mellon and the University of California at Santa Cruz are the
two leading academic centers for storage systems research, while the
University of Michigan is a leader in network file systems. All three
universities have sizable government and industrial collaborations.
Los Alamos, a national security lab, and Oak Ridge National Laboratory
are both in the process of building petaflop supercomputers, while a
third member, Sandia National Laboratories, is another national
security lab that recently built a leadership-class supercomputer.
Both remaining members, the National Energy Research Scientific
Computing Center at Lawrence Berkeley National Laboratory and Pacific
Northwest National Laboratory, provide supercomputing resources for a
diverse array of scientists.
The data storage institute will focus its efforts in three areas:
collecting field data about computer failure rates and application
behaviors, disseminating knowledge through best practices and
standards, and developing innovative system solutions for managing
petascale data storage. The latter category could include so-called
"self-star" systems that use computers to manage computers.
The Petascale Data Storage Institute is part of the DOE's Scientific
Discovery Through Advanced Computing program, which develops new tools
and techniques for computational modeling and simulations. It is
funded by a grant from the DOE Office of Science Programs.
For more information, visit the Petascale Data Storage Institute Web
site at <http://www.pdl.cmu.edu/PDSI/> and the Scientific Discovery
Through Advanced Computing site at <http://www.scidac.gov/>.
-----
Source: DOE/Carnegie Mellon University
-- Dragomir R. Radev Associate Professor SI, CSE, Ling U. Michigan, Ann Arbor http://www.eecs.umich.edu/~radev radev@umich.edu
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