jeudi 9 février 2012

Engineers Boost Computer Processor Performance By Over 20 Percent

NCSU News (02/07/12) Matt Shipman 

North Carolina State University (NCSU) researchers have developed a technique that combines graphics processing units (GPUs) and central processing units (CPUs) on a single chip, boosting processor performance by an average of more than 20 percent. "This approach decreases manufacturing costs and makes computers more energy efficient," says NCSU professor Huiyang Zhou. He notes that GPUs are capable of executing many individual functions very quickly, while CPUs are better at performing 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," Zhou says. He points out that the approach is more efficient than traditional methods because it enables CPUs and GPUs to do what they were designed to do. During initial testing, the researchers found that their approach improved fused processor performance by an average of 21.4 percent.

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