Predictive simulation successes on Dawn supercomputer

Sep 30, 2009
Vertical slice through Rayleigh-Taylor instability — - important in many science applications — layer showing clear asymmetry with "spikes" falling on the light fluid side and "bubbles" rising on the heavy fluid side. (Los Alamos)

(PhysOrg.com) -- The 500-teraFLOPS Advanced Simulation and Computing program's Sequoia Initial Delivery System (Dawn), an IBM machine of the same lineage as BlueGene/L, has immediately proved itself useful as several initial science results demonstrated ground-breaking science, enhanced code performance, and some of the highest resolution, largest simulations ever run in their respective scientific field.

Delivered to the Lawrence Livermore National Laboratory in January and February, Dawn (an IBM /P system) will lay the applications foundation for multi-petaFLOPS (floating point operations per second) computing on Sequoia, a 20-petaFLOPS IBM system to be delivered in late 2011.

All three ASC labs — Lawrence Livermore, Los Alamos, and Sandia — have been busy using Dawn for the past five months and have been generating exciting new results across a broad spectrum of applications.

“The rapidly increasing performance of new supercomputers, such as Dawn, allows us to perform calculations unimaginable only a few years ago,” said Denise Hinkel, AX Division's Plasma Theory Group Leader at LLNL. “Today's supercomputers are the enabling technology for predictive laser-plasma interaction modeling, and recent large-scale simulations on Dawn are helping guide focal-spot-size decisions for the National Ignition Facility beams and helping with ignition design optimization.”

Below are examples of NIF laser and other simulations recently run on Dawn.

Laser beam propagation simulation showing simulated backscatter inside an ignition target (left panel: laser light resonantly scatters off ion acoustic waves; right panel: laser light resonantly scatters off electron plasma waves). Such simulations help to optimize NIF target performance. (LLNL)

Evolution of electron temperature due to heating from a high-energy beam heating in a charged particle plasma-beam interaction simulation, providing insight about interactions that might occur in a fusion fast ignition experiment. (LLNL)

Comparison of Dawn simulation (left) and physical experiment (right) of glass crack patterns. This simulation of dynamic brittle fracture is critical in the understanding of crack propagation using new peridynamics simulations. (Sandia)

Provided by Lawrence Livermore National Laboratory

Explore further: Successful read/write of digital data in fused silica glass with high recording density

add to favorites email to friend print save as pdf

Related Stories

IBM To Build Supercomputer For U.S. Government

Feb 03, 2009

(PhysOrg.com) -- The U.S. Government has contracted out IBM to build a massive supercomputer bigger than any supercomputer out there. The supercomputer system, called Sequoia, will be capable of delivering ...

IBM: World's most powerful computer

Nov 14, 2005

The TOP500 Organization, which tracks high performance computing, Monday named an IBM supercomputing system as the world's most powerful supercomputer. IBM said its Blue Gene/L has an unprecedented sustained performance of ...

Supercomputer Sets New Performance Record

Jun 23, 2006

The world’s fastest supercomputer, BlueGene/L, set a new performance standard on June 22, 2006. Housed at Department of Energy's National Nuclear Security Administration (NNSA) Lawrence Livermore National ...

IBM Claims Its BlueGene Supercomputer Is the Fastest

Sep 30, 2004

IBM Corp. on Wednesday said it has developed the world's fastest computer – a 16,000-processor version of its BlueGene/L supercomputer. BlueGene was able to achieve a sustained performance of 36.01 TFLOPS, ove ...

IBM unveils new supercomputer

Jun 13, 2005

IBM announced today the launch of the world’s most powerful privately-owned supercomputer, the Watson Blue Gene system, nicknamed BGW, installed at the IBM Thomas J. Watson Research Center in Yorktown Heights, N.Y. With a p ...

Recommended for you

US official: Auto safety agency under review

6 hours ago

Transportation officials are reviewing the "safety culture" of the U.S. agency that oversees auto recalls, a senior Obama administration official said Friday. The National Highway Traffic Safety Administration has been criticized ...

Out-of-patience investors sell off Amazon

6 hours ago

Amazon has long acted like an ideal customer on its own website: a freewheeling big spender with no worries about balancing a checkbook. Investors confident in founder and CEO Jeff Bezos' invest-and-expand ...

Ebola.com domain sold for big payout

6 hours ago

The owners of the website Ebola.com have scored a big payday with the outbreak of the epidemic, selling the domain for more than $200,000 in cash and stock.

Hacker gets prison for cyberattack stealing $9.4M

11 hours ago

An Estonian man who pleaded guilty to orchestrating a 2008 cyberattack on a credit card processing company that enabled hackers to steal $9.4 million has been sentenced to 11 years in prison by a federal judge in Atlanta.

Magic Leap moves beyond older lines of VR

11 hours ago

Two messages from Magic Leap: Most of us know that a world with dragons and unicorns, elves and fairies is just a better world. The other message: Technology can be mindboggingly awesome. When the two ...

User comments : 0