Titan replaced the XT5 Jaguar at ORNL last month. Jaguar ranked as the world’s fastest computer on the Top500 lists in November 2009 and June 2010, and now Titan is the scientific research community’s most powerful computational tool for exploring solutions to some of today’s most challenging problems.
“The new Top500 list clearly demonstrates the U.S. commitment to applying high-performance computing to breakthrough science, and that’s our focus at Oak Ridge,” said ORNL Director Thom Mason. “We’ll deliver science from Day One with Titan, and I look forward to the advancements the Titan team will make in areas such as materials research, nuclear energy, combustion and climate science.”
Titan is a Cray XK7 system that contains 18,688 nodes, each built from a 16-core AMD Opteron 6274 processor and an NVIDIA Tesla K20X GPU accelerator. Titan also has 710 terabytes of memory.
Its hybrid architecture – the combination of traditional central processing units (CPUs) with graphic processing units (GPUs) – is largely lauded as the first step toward the goal of exascale computing, or generating 1,000 quadrillion calculations per second using 20 megawatts of electricity or less.
Titan reached a speed of 17.59 petaflops on the Linpack benchmark test – the specific application that is used to rank supercomputers on the Top500 list. Titan is capable of a theoretical peak speed of 27 quadrillion calculations per second – 27 petaflops – while using approximately 9 megawatts of electricity, roughly the amount required for 9,000 homes.
That capability makes Titan 10 times faster than Jaguar with only a 20 percent increase in electrical power consumption – a major efficiency coup made possible by GPUs, which were first created for computer gaming.
“It’s not practical or affordable to continue increasing supercomputing capacity with traditional CPU-only architecture,” said ORNL’s Jeff Nichols, associate laboratory director for computing and computational sciences. “Combining GPUs and CPUs is a responsible move toward lowering our carbon footprint, and Titan will enable scientific leadership by providing unprecedented computing power for research in energy, climate change, materials, and other disciplines.”
Because they handle hundreds of calculations simultaneously, GPUs can perform many more calculations than CPUs in a given time. By relying on its 299,008 CPU cores to guide simulations and allowing its new NVIDIA GPUs to do the heavy lifting, Titan will enable researchers to run scientific calculations with greater speed and increased fidelity.
“The order of magnitude performance increase of Titan over Jaguar will allow U.S. scientists and industry to address problems they could only dream of tackling before,” said Buddy Bland, Titan project manager at DOE’s Oak Ridge Leadership Computing Facility. Scientists began using portions of Titan as it was under construction, demonstrating the significant capabilities of the hybrid system. Among early application areas:
* Materials research: The magnetic properties of materials could vastly accelerate numerous technologies such as next-generation electric motors and generators, and Titan already is allowing researchers to improve the calculations of a material’s magnetic states as they vary by temperature.
* Fuel combustion: Because three-quarters of fossil fuels burned in America power cars and trucks, improving the efficiency of internal combustion engines is critical. Researchers will use Titan’s unprecedented power to model combustion of large-molecule hydrocarbon fuels such as the isooctane (an important component of gasoline), commercially important oxygenated alcohols such as ethanol and butanol, and biofuel surrogates.
* Nuclear power: The U.S. acquires 20 percent of its power from nuclear plants, and Titan will lead the way to extending the life cycles of aging reactors and ensuring they remain safe. Titan allows researchers to simulate a fuel rod through one round of use in a reactor core in 13 hours, a job that took 60 hours on the Jaguar system.
Other efforts include calculating specific climate change adaptation and mitigation scenarios, obtaining a molecular description of thin films important for the emerging field of flexible organic electronic devices, and calculating radiation transport, a process important in fields ranging from astrophysics to medical imaging.
“Titan builds on the Oak Ridge Leadership Computing Facility’s established reputation for enabling transformational discoveries across the scientific spectrum,” Nichols said.
ORNL is managed by UT-Battelle for the Department of Energy. The Department of Energy is the single largest supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit http://science.energy.gov/.
The Oak Ridge Leadership Computing Facility supports national science priorities through deployment and operation of advanced supercomputers as part of DOE’s commitment to providing scientists with world-leading research tools.
The Top500 project was started in 1993 to provide a basis for tracking and detecting trends in high-performance computing. Twice a year, a list of sites operating the 500 most powerful computer systems is released. The best performance on the High Performance Linpack benchmark is used as performance measure for ranking the computer systems. The list contains a variety of information including the system’s specifications and its major application areas.
Caption: Oak Ridge National Laboratory's Titan is now ranked as the world's fastest supercomputer.
NOTE TO EDITORS: You may read other press releases from Oak Ridge National Laboratory or learn more about the lab at http://www.ornl.gov/news. Additional information about ORNL is available at the sites below:
Twitter - http://twitter.com/oakridgelabnews
RSS Feeds - http://www.ornl.gov/ornlhome/rss_feeds.shtml
Flickr - http://www.flickr.com/photos/oakridgelab
YouTube - http://www.youtube.com/user/OakRidgeNationalLab
LinkedIn - http://www.linkedin.com/companies/oak-ridge-national-laboratory
Facebook - http://www.facebook.com/Oak.Ridge.National.Laboratory
Morgan McCorkle | Source: Newswise Science News
Further information: www.ornl.gov
Further Reports about: combustion engine > computer systems > CPU > Facility Management > GPU > high-performance computing > megawatts of electricity > ORNL’s > Performance Measurement-Systems > Pervasive Computing > Powerful > speed|scan atlineCT-System > Supercomputer > Titan Arum
More articles from Information Technology:
Electronic mandates for SEPA direct debit transactions
09.12.2013 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Computers can covertly communicate via audio signals
05.12.2013 | Fraunhofer-Institut für Kommunikation, Informationsverarbeitung und Ergonomie FKIE
Researchers from Brown University and the University of Hawaii have found some mineralogical surprises in the Moon's largest impact crater.
Data from the Moon Mineralogy Mapper that flew aboard India's Chandrayaan-1 lunar orbiter shows a diverse mineralogy in the subsurface of the giant South Pole Aitken basin.
The differing mineral signatures could be reflective of the minerals dredged up at the time of the giant impact 4 billion years ago, ...
In power electronics systems bonded connections create the central electrical connections between adjoining surfaces.
The quality of these bonded connections is one of the main factors that determines the reliability and availability of drive systems in electric vehicles, and hence constitutes a major design challenge for German auto manufacturers aiming to electrify their vehicles.
Now the partners participating in the RoBE (Robust Bonds in ...
International team of scientists develops new feedback method for optimizing the laser pulse shapes used in the control of chemical reactions
In many ways, traditional chemical synthesis is similar to cooking. To alter the final product, you can change the ingredients or their ratio, change the method of mixing ingredients, or change the temperature or pressure of the environment of the ingredients.
Like an accomplished chef, chemists have become very skilled ...
A genetic defect protects mice from infection with influenza viruses
A new study published in the scientific journal PLOS Pathogens points out that mice lacking a protein called Tmprss2 are no longer affected by certain flu viruses.
The discovery was made by researchers from the Helmholtz Centre for Infection Research (HZI) in Braunschweig in collaboration with colleagues from Göttingen and ...
The Light: Global study gets underway with online user survey
Light has a fundamental impact on our sense of well-being and performance. In cooperation with Zumtobel, a supplier of lighting solutions, Fraunhofer IAO has launched a global user survey of lighting quality in offices. The objective is to identify the best lighting conditions for a variety of spaces and lighting ...
10.12.2013 | Physics and Astronomy
10.12.2013 | Agricultural and Forestry Science
10.12.2013 | Power and Electrical Engineering
10.12.2013 | Event News
05.12.2013 | Event News
04.12.2013 | Event News