Darpa seeks new power dynamic for continuation of Moore's Law

Jan 30, 2012

Computational capability is an enabler for nearly every military system.  But computational capability is increasingly limited by power requirements and the constraints on the ability to dissipate heat.  One particular military computational need is found in intelligence, surveillance and reconnaissance systems where sensors collect more information than can be processed in real time.  To continue to increase processing speed, new methods for controlling power constraints are required.

In the past, computing systems could rely on increasing computing performance with each processor generation.  Following Moore’s Law, each generation brought with it double the number of transistors.  And according to Dennard’s Scaling, clock speed could increase 40 percent each generation without increasing power density.  This allowed increased performance without the penalty of increased power.

“That expected increase in processing performance is at an end,” said DARPA Director Regina E. Dugan. “Clock speeds are being limited by power constraints. Power efficiency has become the Achilles Heel of increased .”

DARPA’s Power Efficiency Revolution for Embedded Computing Technologies (PERFECT) program seeks to improve for embedded computer systems, providing more computing per watt of electrical . To increase awareness of this program and attract potential researchers, DARPA has scheduled a Proposers’ Day workshop Feb. 15 in Arlington, Va. Proposers’ Day details are available through the Special Notice located here.

As transistor operating voltages approach logic threshold voltage, device operating characteristics change dramatically, decreasing both reliability and maximum operating frequency.  Since reliability and operating frequency are critical to its user base, commercial industry has only limited ability to reduce operating voltage to avoid these clock frequency decreases. PERFECT seeks revolutionary approaches to processing-power efficiency to overcome these limitations.  This approach includes near threshold voltage operation and massive heterogeneous processing concurrency, combined with techniques to effectively use the resulting concurrency and tolerate the resulting increased rate of soft errors.

Explore further: New design for mobile phone masts could cut carbon emissions

add to favorites email to friend print save as pdf

Related Stories

Versatile ultra-low power biomedical signal processor

Feb 25, 2011

At today’s International Solid-State Circuit Conference (ISSCC2011), imec, Holst Centre and NXP present a versatile ultra-low power biomedical signal processor, CoolBio, meeting the requirements of future ...

Efficiency record of combined cycle power plant

May 24, 2011

A new Siemens gas turbine operated in a combined cycle with a steam turbine in Irsching, Bavaria, has set a world record for efficiency, making it an outstanding example of green technology. The net efficiency ...

Shredder Challenge solved

Dec 05, 2011

Almost 9,000 teams registered to participate in DARPA's Shredder Challenge. Thirty-three days after the challenge was announced, one small San Francisco-based team correctly reconstructed each of the five challenge documents ...

Recommended for you

Dish Network denies wrongdoing in $2M settlement

8 hours ago

The state attorney general's office says Dish Network Corp. will reimburse Washington state customers about $2 million for what it calls a deceptive surcharge, but the satellite TV provider denies any wrongdoing.

Yahoo sees signs of growth in 'core' (Update)

8 hours ago

Yahoo reported a stronger-than-expected first-quarter profit Tuesday, results hailed by chief executive Marissa Mayer as showing growth in the Web giant's "core" business.

Intel reports lower 1Q net income, higher revenue

8 hours ago

Intel's earnings fell in the first three months of the year amid a continued slump in the worldwide PC market, but revenue grew slightly because of solid demand for tablet processors and its data center services.

Earthquake simulation tops one quadrillion flops

10 hours ago

A team of computer scientists, mathematicians and geophysicists at Technische Universitaet Muenchen (TUM) and Ludwig-Maximillians Universitaet Muenchen (LMU) have – with the support of the Leibniz Supercomputing ...

Twitter buys data analytics partner Gnip

11 hours ago

Twitter says it has bought its data partner Gnip, which provides analysis of the more than 500 million tweets its users share each day—to advertisers, academic institutions, politicians and other customers.

User comments : 0

More news stories

Intel reports lower 1Q net income, higher revenue

Intel's earnings fell in the first three months of the year amid a continued slump in the worldwide PC market, but revenue grew slightly because of solid demand for tablet processors and its data center services.

Low Vitamin D may not be a culprit in menopause symptoms

A new study from the Women's Health Initiative (WHI) shows no significant connection between vitamin D levels and menopause symptoms. The study was published online today in Menopause, the journal of The North American Menopa ...

Astronomers: 'Tilt-a-worlds' could harbor life

A fluctuating tilt in a planet's orbit does not preclude the possibility of life, according to new research by astronomers at the University of Washington, Utah's Weber State University and NASA. In fact, ...