Featured Research

from universities, journals, and other organizations

Titan -- world's most powerful supercomputer -- is also a green powerhouse

Date:
November 14, 2012
Source:
DOE/Oak Ridge National Laboratory
Summary:
Not only is Oak Ridge National Laboratory's Titan the world's most powerful supercomputer, it is also one of the most energy-efficient. Titan came in at number three on the Green500 list.

Not only is Oak Ridge National Laboratory's Titan the world's fastest supercomputer, it is also ranked third in energy efficiency.
Credit: Image courtesy of Oak Ridge National Laboratory

Not only is Oak Ridge National Laboratory's Titan the world's most powerful supercomputer, it is also one of the most energy-efficient.

Titan came in at number three on the Green500 list. Organized by Virginia Tech's Wu-chun Feng and Kirk Cameron, the list takes the world's 500 most powerful supercomputers -- as ranked by the Top500 list -- and reorders them according to how many calculations they can get per watt of electricity.

The Green500 list was announced Wednesday during the SC12 supercomputing conference in Salt Lake City.

Titan's position reflects a significant power savings attributable to the system's hybrid architecture. Titan draws its computing strength from a combination of GPUs, whose pedigree goes back to gaming systems, and traditional CPUs. Because of their unique strength as number-crunchers, GPUs give Titan a tenfold boost in computing power, even though the system draws only modestly more power than a CPU-only system.

"With Titan, ORNL provides an exponential increase in scientific computing power toward predictive capabilities to address complex challenges without significantly increasing energy consumption," noted Jeff Nichols, ORNL associate laboratory director for computing and computational sciences.

The Cray XK7 system contains 18,688 nodes, each with a 16-core AMD Opteron 6274 processor and an NVIDIA Tesla K20X graphics processing unit (GPU) accelerator. Titan also has more than 700 terabytes of memory.

Because they handle hundreds of calculations simultaneously, GPUs can go through many more 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 accuracy.


Story Source:

The above story is based on materials provided by DOE/Oak Ridge National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

DOE/Oak Ridge National Laboratory. "Titan -- world's most powerful supercomputer -- is also a green powerhouse." ScienceDaily. ScienceDaily, 14 November 2012. <www.sciencedaily.com/releases/2012/11/121114171712.htm>.
DOE/Oak Ridge National Laboratory. (2012, November 14). Titan -- world's most powerful supercomputer -- is also a green powerhouse. ScienceDaily. Retrieved September 15, 2014 from www.sciencedaily.com/releases/2012/11/121114171712.htm
DOE/Oak Ridge National Laboratory. "Titan -- world's most powerful supercomputer -- is also a green powerhouse." ScienceDaily. www.sciencedaily.com/releases/2012/11/121114171712.htm (accessed September 15, 2014).

Share This



More Computers & Math News

Monday, September 15, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Frustration As Drone Industry Outpaces Regulation In U.S.

Frustration As Drone Industry Outpaces Regulation In U.S.

Newsy (Sep. 14, 2014) U.S. firms worry they’re falling behind in the marketplace as the FAA considers how to regulate commercial drones. Video provided by Newsy
Powered by NewsLook.com
iPhone 6 Sales Mark Yet Another Year Of Records, Glitches

iPhone 6 Sales Mark Yet Another Year Of Records, Glitches

Newsy (Sep. 13, 2014) Customers looking to preorder the iPhone 6 on Friday experienced a few hiccups thanks to record demand for the device overnight. Video provided by Newsy
Powered by NewsLook.com
Is Photo-Sharing App Tiiny Really A Snapchat Competitor?

Is Photo-Sharing App Tiiny Really A Snapchat Competitor?

Newsy (Sep. 13, 2014) Tiiny, a photo-sharing app, is being called a Snapchat competitor. But after testing it ourselves, we'd have to disagree. Video provided by Newsy
Powered by NewsLook.com
Ebola Batters Sierra Leone Economy Too

Ebola Batters Sierra Leone Economy Too

Reuters - Business Video Online (Sep. 12, 2014) The World Health Organisation warns that local health workers in West Africa can't keep up with Ebola - and among those countries hardest hit by the outbreak, the economic damage is coming into focus, too. As David Pollard reports, Sierra Leone admits that growth in one of the poorest economies in the region is taking a beating. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

    Technology News



    Save/Print:
    Share:

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile: iPhone Android Web
    Follow: Facebook Twitter Google+
    Subscribe: RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins