The Channel logo

News

By | Tony Smith 6th November 2006 16:37

Japanese boffins show off 512-core chip

Maths co-processor on steroids

Japanese researchers at the University of Tokyo have built a multi-core chip that runs at just 500MHz but is capable, they claim, of performing 512bn floating-point operations every second. The secret: the processor contains 512 cores.

To be accurate, the so-called Grape DR chip is a maths co-processor. It's designed to sit on a PCI-X add-in card and provide back-up for the host system's CPU. And each core is designed to handle a single, specific maths instruction, such as a floating-point addition or multiplication. The chip also contains a shared memory cache.

The 512 cores are split into 16 groups of 32, each group capable of processing a single type of FP instruction. The chip itself measures 17 x 17mm and contains 300m transistors. It consumes up to 60W of power.

The University of Tokyo began work on Grape DR in 2004. By 2008, it hopes to have a design capable of delivering 2Pflops - two quadrillion floating-point operations a second. ®

alert Send corrections

Opinion

Windows 10 on Surface 3

Tim Anderson

It's do-or-die for Microsoft's new operating system on 29 July
Wine Taps by N Wong, Flickr, CC 2.0 License

Simon Sharwood

Clouds sell compute by the glass. On-premises kitmakers want to sell wine-as-a-service

Greg Knieriemen

Privacy, security, information sovereignty, what we all want, right?
Microsoft's Joe Belfiore, speaking at Build 2015

Andrew Orlowski

Redmond devotees may as well have demanded manga desktop wallpaper

Features

Time to pull out the magnifying glass to swot up on those Ts&Cs
Android icon desktop toys
Nice devices, now speak 'enterprise' to me
Standard Form 86 reads like a biography of each intelligence worker
Protestor barricade image via Shutterstock
Breaking through the hardware barricades to a new network state