Feeds

MIT boffins build 36 core processor with data-traffic smarts

Network-on-chip design uses internet-inspired scheme to solve bussing problems

Application security programs and practises

Researchers at MIT say they have successfully built a 36-core processor that uses an internal networking system to get maximum data throughput from all the processing cores.

MIT's new multicore, multi-bus, chip

MIT's new multicore, multi-bus chip

The design, unveiled at the International Symposium on Computer Architecture, gets around some of the problems with multicore processors, namely bus sharing between cores, and maintaining cache coherence.

Most conventional designs use a single bus to connect cores, meaning that when two cores communicate, they typically use the entire bus and leave other cores waiting. The MIT design borrows from the internet's design and allows all chips to share data with their neighbors using their own router.

"You can reach your neighbors really quickly," said Bhavya Daya, an MIT graduate student in electrical engineering and computer science, and first author on the new paper. "You can also have multiple paths to your destination. So if you're going way across, rather than having one congested path, you could have multiple ones."

The network is also used to distribute data between each core's cache without having to shift it too far, potentially speeding up the system even further.

"Their contribution is an interesting one: They're saying, 'Let's get rid of a lot of the complexity that's in existing networks. That will create more avenues for communication, and our clever communication protocol will sort out all the details'," said Todd Austin, a professor of electrical engineering and computer science at the University of Michigan.

"It's a much simpler approach and a faster approach. It's a really clever idea."

The blueprints for the new chip design aren't being released as yet, since the team first wants to develop an operating system capable of using it to best advantage. The team is now adapting a version of Linux to use the new chip before releasing the designs. ®

Eight steps to building an HP BladeSystem

More from The Register

next story
Sysadmin Day 2014: Quick, there's still time to get the beers in
He walked over the broken glass, killed the thugs... and er... reconnected the cables*
SHOCK and AWS: The fall of Amazon's deflationary cloud
Just as Jeff Bezos did to books and CDs, Amazon's rivals are now doing to it
Amazon Reveals One Weird Trick: A Loss On Almost $20bn In Sales
Investors really hate it: Share price plunge as growth SLOWS in key AWS division
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
BlackBerry: Toss the server, mate... BES is in the CLOUD now
BlackBerry Enterprise Services takes aim at SMEs - but there's a catch
The triumph of VVOL: Everyone's jumping into bed with VMware
'Bandwagon'? Yes, we're on it and so what, say big dogs
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.