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Primeur weekly 2012-02-13

The Cloud

Oracle buys Taleo ...

Tulip Telecom and IBM build India's largest data centre to address rapid growth of mobile consumers in emerging markets ...

HP powers application performance testing in the Cloud ...

Desktop Grids

Registration open for the 14th IDGF tutorial at Johannes Gutenberg Universität in Mainz ...

SAT@home to join BOINC platform ...

EuroFlash

ATEME and Bull partner for extreme performance ...

Bull reaffirms its outsourcing credentials for the most mission-critical SAP environments ...

Altair and Ontonix offer complexity management solution for achieving simple and robust design ...

Digital Sports Group to commission supercomputer for football.co.uk ...

Europe goes for computing technologies as driver for competitiveness ...

Scientists 'record' magnetic breakthrough ...

New technology platform for molecule-based electronics ...

USFlash

Cray forms new Big Data division and hires new General Manager ...

Oracle announces availability of Oracle Advanced Analytics for Big Data ...

Emerson Network Power receives ISO 13485 certification for manufacture of medical power supplies ...

Emerson Network Power to support Cavium OCTEON III multicore MIPS processor family on innovative ATCA Packet processing solutions ...

ARINC inaugurates new supercomputer for complex antenna engineering and analyses ...

Scripps research and technion scientists develop biological computer to encrypt and decipher images ...

IBM boosts XIV Storage System Gen3 performance three-fold with SSD caching option ...

NCAR representatives to host Supercomputer Use Workshop for University of Wyoming Faculty ...

University of Wyoming receives computational sciences designation ...

New supercomputer to help scientists reach for the stars ...

Engineers boost computer processor performance by over 20 percent ...

Governor Kasich announces 10-fold boost to Ohio's broadband network ...

Engineers boost computer processor performance by over 20 percent

7 Feb 2012 Raleigh - Researchers from North Carolina State University have developed a new technique that allows graphics processing units (GPUs) and central processing units (CPUs) on a single chip to collaborate - boosting processor performance by an average of more than 20 percent.

"Chip manufacturers are now creating processors that have a 'fused architecture', meaning that they include CPUs and GPUs on a single chip", stated Dr. Huiyang Zhou, an associate professor of electrical and computer engineering who co-authored a paper on the research. "This approach decreases manufacturing costs and makes computers more energy efficient. However, the CPU cores and GPU cores still work almost exclusively on separate functions. They rarely collaborate to execute any given programme, so they aren't as efficient as they could be. That's the issue we're trying to resolve."

GPUs were initially designed to execute graphics programmes, and they are capable of executing many individual functions very quickly. CPUs, or the "brains" of a computer, have less computational power - but are better able to perform more complex tasks.

"Our approach is to allow the GPU cores to execute computational functions, and have CPU cores pre-fetch the data the GPUs will need from off-chip main memory", Dr. Zhou stated. "This is more efficient because it allows CPUs and GPUs to do what they are good at. GPUs are good at performing computations. CPUs are good at making decisions and flexible data retrieval."

In other words, CPUs and GPUs fetch data from off-chip main memory at approximately the same speed, but GPUs can execute the functions that use that data more quickly. So, if a CPU determines what data a GPU will need in advance, and fetches it from off-chip main memory, that allows the GPU to focus on executing the functions themselves - and the overall process takes less time.

In preliminary testing, Dr. Zhou's team found that its new approach improved fused processor performance by an average of 21.4 percent.

This approach has not been possible in the past, Dr. Zhou added, because CPUs and GPUs were located on separate chips.

The paper, "CPU-Assisted GPGPU on Fused CPU-GPU Architectures", will be presented February 27 at the 18th International Symposium on High Performance Computer Architecture, in New Orleans. The paper was co-authored by NC State Ph.D. students Yi Yang and Ping Xiang, and by Mike Mantor of Advanced Micro Devices (AMD). The research was funded by the National Science Foundation and AMD.
Source: North Carolina State University

Back to Table of contents

Primeur weekly 2012-02-13

The Cloud

Oracle buys Taleo ...

Tulip Telecom and IBM build India's largest data centre to address rapid growth of mobile consumers in emerging markets ...

HP powers application performance testing in the Cloud ...

Desktop Grids

Registration open for the 14th IDGF tutorial at Johannes Gutenberg Universität in Mainz ...

SAT@home to join BOINC platform ...

EuroFlash

ATEME and Bull partner for extreme performance ...

Bull reaffirms its outsourcing credentials for the most mission-critical SAP environments ...

Altair and Ontonix offer complexity management solution for achieving simple and robust design ...

Digital Sports Group to commission supercomputer for football.co.uk ...

Europe goes for computing technologies as driver for competitiveness ...

Scientists 'record' magnetic breakthrough ...

New technology platform for molecule-based electronics ...

USFlash

Cray forms new Big Data division and hires new General Manager ...

Oracle announces availability of Oracle Advanced Analytics for Big Data ...

Emerson Network Power receives ISO 13485 certification for manufacture of medical power supplies ...

Emerson Network Power to support Cavium OCTEON III multicore MIPS processor family on innovative ATCA Packet processing solutions ...

ARINC inaugurates new supercomputer for complex antenna engineering and analyses ...

Scripps research and technion scientists develop biological computer to encrypt and decipher images ...

IBM boosts XIV Storage System Gen3 performance three-fold with SSD caching option ...

NCAR representatives to host Supercomputer Use Workshop for University of Wyoming Faculty ...

University of Wyoming receives computational sciences designation ...

New supercomputer to help scientists reach for the stars ...

Engineers boost computer processor performance by over 20 percent ...

Governor Kasich announces 10-fold boost to Ohio's broadband network ...