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Dharmendra S. Modha

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Archives for August 2011

The Economist on “Transistors: Plugging the leaks”

August 28, 2011 By dmodha

The Economist published an in-depth and thought-provoking article a week ago: 

"MOORE’S LAW—the prediction made in 1965 by Gordon Moore, that the number of transistors on a chip of given size would double every two years—has had a good innings." However, the transistors "have already shrunk to a size where every atom counts. Too few atoms can cause their insulation to break down, or allow current to leak to places it is not supposed to be because of a phenomenon called quantum tunnelling, in which electrons vanish spontaneously and reappear elsewhere. Too many atoms of the wrong sort, though, can be equally bad, interfering with a transistor’s conductivity. Engineers are therefore endeavouring to redesign transistors yet again, so that Dr Moore’s prediction can remain true a little longer."  

Filed Under: Accomplishments, Brain-inspired Computing, Press

Evolution of Cognitive Computing

August 18, 2011 By dmodha

2006:              
Almaden Institute

2007:              
“Mouse”-scale simulations
Talk Video: Cognitive Computing Talk at UC Berkeley 
Talk Video: Cognitive Computing Talk at Decade of the Mind Symposium
“Rat”-scale simulations

2008:              
DARPA SyNAPSE Phase 0

2009:              
Talk Video: IEEE 125th Anniversary 
“Cat”-scale simulations and ACM Gordon Bell Prize
DARPA SyNAPSE Phase 1

2010:              
“Network architecture of the long-distance pathways in the macaque brain”

2011:              
Cognitive Computing in Communications of the ACM
Talk Video: Cognitive Computing Keynote at DAC 
Chips and DARPA SyNAPSE Phase 2

Filed Under: Brain-inspired Computing

IBM’s SyNAPSE Website

August 18, 2011 By dmodha

http://www.ibm.com/synapse

Filed Under: Accomplishments, Brain-inspired Computing, Press

Video of Keynote at DAC 2011

August 17, 2011 By dmodha

Here is link to video of my recent keynote at the 2011 Design Automation Conference that summarizes the most recent progress.

Filed Under: Accomplishments, Brain-inspired Computing, Presentations

Dark Silicon

August 6, 2011 By dmodha

Recently, Hadi Esmaeilzadeh, Emily Blem, Renée St. Amant, Karthikeyan Sankaralingam, and Doug Burger, published a paper entitled "Dark Silicon and the End of Multicore Scaling".  Here is the associated article in New York Times that beautifully summarizes the issue:

"The problem is not that they cannot squeeze more transistors onto the chips — they surely can — but instead, like a city that cannot provide electricity for its entire streetlight system, that all those transistors could require too much power to run economically. They could overheat, too."

Filed Under: Brain-inspired Computing

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