Feeds

MIT boffins build 36 core processor with data-traffic smarts

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

Next gen security for virtualised datacentres

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. ®

Gartner critical capabilities for enterprise endpoint backup

More from The Register

next story
The Return of BSOD: Does ANYONE trust Microsoft patches?
Sysadmins, you're either fighting fires or seen as incompetents now
Microsoft: Azure isn't ready for biz-critical apps … yet
Microsoft will move its own IT to the cloud to avoid $200m server bill
Shoot-em-up: Sony Online Entertainment hit by 'large scale DDoS attack'
Games disrupted as firm struggles to control network
Cutting cancer rates: Data, models and a happy ending?
How surgery might be making cancer prognoses worse
Silicon Valley jolted by magnitude 6.1 quake – its biggest in 25 years
Did the earth move for you at VMworld – oh, OK. It just did. A lot
Forrester says it's time to give up on physical storage arrays
The physical/virtual storage tipping point may just have arrived
prev story

Whitepapers

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.
5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?