Avian Gamers Network

Forum
It is currently Sat Apr 27, 2024 9:20 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 1 post ] 
Author Message
PostPosted: Sat Dec 08, 2007 1:06 pm 
Offline
User avatar

Joined: Sat Nov 30, 2002 2:09 am
Posts: 1594
Location: Calgary, AB
Quote:
IBM researchers build supercomputer-on-a-chip
IBM's high-bandwidth, low-power, silicon nanophotonics technology could make supercomputers the size of a laptop a reality


By Agam Shah, IDG News Service

December 06, 2007

Supercomputers may soon be the same size as a laptop if IBM brings to market research detailed on Thursday, in which pulses of light replace electricity to make data transfer between processor cores on a chip up to one-hundred times faster.


The technology, called silicon nanophotonics, replaces some of the wires on a chip with pulses of light on tiny optical fibers for quicker and more power-efficient data transfers between cores on a chip, said Will Green, research scientist at IBM.

The technology, which can transfers data up to a distance of a few centimeters, is about 100 times faster than wires and consumes one-tenth as much power, Green said. The lower power requirement should reduce operational costs for supercomputers, he said.

"The silicon nanophotonic effort is a high-bandwidth, low-power technology for cores to communicate," Green said.

The technical basis of this research is the same science that led to the development of optical fiber and Internet communications. Silicon nanophotonics brings similar optical communication on chips for centimeters instead of miles, Green said.

The improved data bandwidth and power efficiency of silicon nanophotonics will bring massive computing power to desks, Green said. "We'll be able to have hundreds or thousands of cores on a chip," Green said. Users will be able to render virtual worlds in real-time and have a better gaming experience, he said.

Modulators sitting in each core convert light into pulses that travels over optical fibers in the silicon chip. The modulators don't take up too much space on the chip, Green said.

Silicon nanophotonics is part of a long-term research project and could be implemented in chips within 10 to 12 years, he said.

More cores are being added to chips to boost performance, but electrical wiring that connects cores on current chips doesn't transfer data effectively in these situations, Green said. Electrical wiring suffers from overheating and data signals travel only a few millimeters from one core to another before breaking down, Green said. Silicon photonics sends signals for many centimeters in a power-efficient mode without an attempt to reconstruct the signal, Green said.

Though the technology shows potential to replace copper wires for data transfer on chips, electrical wiring still does well over short distances. Copper wire is essential for transistors in chips to communicate, while silicon nanophotonic technology is used for cores to communicate. "We're complementing the capabilities of copper with our optical technology," Green said.

In addition to IBM, there are a couple of start-up companies and labs in the U.S. that are working on silicon nanophotonics technology, Green said. The IBM project was funded partly by Defense Advanced Research Projects Agency (DARPA), a division of the U.S. Department of Defense.


Linky

_________________
~Ravageā„¢
~I know that you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant.
~The problem with facts, is that sometimes they don't support your opinion.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 66 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group