Ceremonies will start at 6:30 p."
As of February 11, 2005 the Cray XD1 supercomputer surpassed all
the other HPC systems tested in random-ring latency, performing more
than 3 times faster than the leading Itanium system on this important
indicator of real-world application performance that measures latency
and bandwidth in small-message codes.4, and bettered the SGI Altix by 20 percent .
The tests are designed to assess those aspects of supercomputing that
have the greatest effect on performance under real-world conditions. These
include the technical challenges of developing high performance
computing systems, the successful porting of application programs, the
successful passing of acceptance tests and reliance on third-party
suppliers.

computers babbage

cray.

computers machines

It concludes with a spectacular fireworks display at
9 p. 2, 1982, as an educational foundation to
provide opportunities for all citizens to observe and participate in the
national Pause for the Pledge of Allegiance each year . Rosenberg,
Jr.S.

founder seymour

m. In the global parallel matrix
transpose (PTRANS) benchmark test, the Cray XD1 system demonstrated a
better than fivefold performance increase over Xeon/Infiniband
clusters and a 40 percent increase over the SGI Altix system, which
was configured with twice as many processors .

About Cray Inc

As the global leader in HPC, Cray provides innovative
supercomputing systems that enable scientists and engineers in
government, industry and academia to meet both existing and future
computational challenges. For a discussion of these and other risks, see "Factors
That Could Affect Future Results" in Cray's most recent Quarterly
Report on Form 10-Q filed with the SEC .

tribute research

June 14th Pause for the Pledge of Allegiance at Fort McHenry to Feature Patriotic Songs Fly-over and Fireworks

It is run by the National Flag Day
Foundation, which was chartered Dec.utk.

About the Cray XD1 Supercomputer

The Cray XD1 supercomputer features direct connect processor (DCP )
architecture, which removes PCI bottlenecks and memory contention to
deliver superior sustained performance.
Field-programmable gate arrays (FPGAs) are available to accelerate
applications, and the Active Manager subsystem provides single-system
command and control and high-availability features. Building on years of experience in
designing, developing, marketing and servicing the world 's most
advanced supercomputers, Cray offers a comprehensive portfolio of HPC
systems that deliver unrivaled sustained performance on a wide range
of applications.

institute visitors

BALTIMORE, The 26th Annual Pause for the Pledge of
Allegiance program will be held on Tuesday, June 14 at the Fort McHenry
National Monument and Historic Shrine, 2400 E.m. In the global Fast
Fourier Transform (FFT) test, the Cray XD1 system exceeded the
performance of a comparably sized IBM p655 with Federation switch by a
factor of 8. Department of Energy, the National Science Foundation and DARPA. Additional test are expected to be added in the
future.8-microsecond
MPI interprocessor latency, 84 GB maximum memory and 1 .

research institute

"These benchmarks, based on application-oriented rather than
theoretical computing models, demonstrate that the Cray XD1
supercomputer provides impressive HPC performance that is usually
found only in larger and more expensive systems," said Peter Ungaro,
Cray senior vice president for sales, marketing and service.
"Linpack is useful, but no single test can accurately reflect the
overall performance of HPC systems," according to Dongarra. According to the HPC Challenge
benchmarks , the Cray XD1 system has the lowest latency of any
comparable HPC system, with MPI latency of 1.8 microseconds and random
ring latency of 1.
Tests conducted by the Ohio Supercomputer Center show that the
Cray XD1 system ships messages with four times lower MPI latency than
common cluster interconnects such as Infiniband and Quadrics, and 30
times lower than Gigabit Ethernet employed in lowest-cost clusters.

about tribute

, in Baltimore. and the Pledge of Allegiance will be
recited at 7 p. The program will include a series of patriotic songs, the
placing of a memorial wreath to commemorate those who fought and died in the
armed forces, a Baltimore City fireboat display and a fly-over by a squadron
of A-10 Thunderbolt jets.
The objective of the program is to instill patriotism and pay tribute to
those who serve in the armed forces. Before the program starts,
visitors can tour the grounds of Fort McHenry.
Specifically designed to meet high-end computational needs, the Cray
X1 system provides exceptional memory bandwidth, low-latency
interconnections and vector -processing capabilities.edu/hpcc/hpcc_results.
A 3VU (5. A 12-chassis rack provides 144 compute processors , 691
peak gigaflops, 1TB/second aggregate switching capacity, 2 microsecond
MPI interprocessor latency, 922 GB/second aggregate memory bandwidth,
1 TB maximum memory and 18 TB maximum disk storage .

honor visitors

m.
"The Pause for the Pledge is opportunity to reflect on what it means to be
an American and serve in harm's way for our country," said Henry A.
The company's high-end system, the Cray X1 (TM) supercomputer, was
the top performer on two important HPC Challenge tests: the G-TRANS
benchmark , which measures simultaneous communications between
processors while attacking a realistic problem; and the G-HPL test,
which assesses the efficiency of the Message Passing Interface (MPI)."
"Because the HPC Challenge benchmark tests are multifaceted, they
provide a more comprehensive insight into the performance of today's
high-performance computing systems and are a major improvement over
traditional single-point benchmarks in predicting how HPC systems will
perform on many applications," said Paul Muzio, director of support
infrastructure at the U.3 microseconds.

photographs charles

The system can
nearly double its performance with AMD Opteron dual-core processors
when they become available later this year .

founder obituary

cgi. (The Cray
XD1 system is identified as "Cray AMD Opteron" in the table.)

Going Beyond Traditional Linpack Benchmarks

Developed by Jack Dongarra and Piotr Luszczek of the University of
Tennessee, with collaborators from the U.

Cray is a registered trademark, and Cray X1 and XD1 are
trademarks, of Cray Inc.

honor obituary

Cray XD1 Supercomputer Outscores Competition in HPC Challenge Benchmark Tests; Benchmarks Assess Real-World Performance in Several Key Aspects of Supercomputin

"The HPC
Challenge benchmark suite stresses not only the processors, but the
memory system and the interconnect. Go to www.

computers founder

Complete HPC Challenge results for all listed systems are
available at http://icl. Army 's High Performance Computing Research
Center (AHPCRC).com

Safe Harbor Statement

This press release contains forward-looking statements.

obituary photographs

research visitors

"There is no more
poignant moment than now -- as we do battle with international terrorists --
to honor the men and women who defend our freedom. It is a better indicator of how an
HPC system will perform across a spectrum of real -world applications.S.

memorial supercomputing

Fort Ave."
The public is invited to attend the free program and is urged to bring a
picnic meal, along with chairs and blankets. The Cray XD1 system, which is being demonstrated at the
LinuxWorld Conference + Expo in Boston this week, scored first in one
of the eight HPC Challenge performance categories and second in two
others, resulting in the highest rating overall in its class and some
of the best scores among all the systems tested regardless of size and
price . "To suit
the economics of the HPC mid-market segment, the system delivers this
performance at price points starting at under US$100,000 list. There are
certain factors that could cause Cray's execution plans to differ
materially from those anticipated by the statements above. All other trademarks are the property of
their respective owners.

late comments

cs.
The HPC Challenge suite includes Linpack, a single test of processor
performance that is the basis for the semi-annual TOP500 supercomputer
ranking . The suite substantially augments the Linpack measurement with
seven more tests.

memorial obituary

, chairman of the board the National Flag Day Foundation. and Europe, the HPC
Challenge benchmark suite debuted in 2003 under the sponsorship of the
U.25") chassis provides 12 compute processors, 58 peak
gigaflops , 96 GB/second aggregate switching capacity, 1.5 TB maximum
disk storage.

late about

The late founder of Cray Research.

supercomputing cray

Business Editors/High-Tech Writers
LinuxWorld Boston 2005

BOSTON----Global supercomputer
leader Cray Inc (Nasdaq:CRAY) reported that recent High Performance
Computing (HPC ) Challenge benchmark tests show that the Cray XD1(TM)
Opteron/Linux-based supercomputer outperforms systems of similar size
and price.S.
The Cray XD1 interconnect delivers twice the bandwidth of 4X
Infiniband for messages up to 1 KB and 60 percent higher throughput
for very large messages .
The Cray XD1 Opteron/Linux system runs x86 32/64 bit codes.