Mitigating the Bandwidth Bottleneck with Approximate Load Value Prediction.

Amir Yazdanbakhsh, Gennady Pekhimenko, Bradley Thwaites, Girish Mururu, Jongse Park, Hadi Esmaeilzadeh, Onur Mutlu, Todd C. Mowry

Design and Test, vol. 33, pp. 32-42, IEEE, February 2016

 

Abstract

Limited memory bandwidth and long access latency are serious GPU performance bottlenecks. For emerging applications that are inherently error resilient, this paper proposes to predict the values of safe-to-approximate loads and drop a certain fraction of the cache misses with predicted values to improve performance and energy efficiency.

 

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