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1998

An Efficient Solution to the Cache Thrashing Problem Caused by True Data Sharing

9 years 2 months ago
An Efficient Solution to the Cache Thrashing Problem Caused by True Data Sharing
—When parallel programs are executed on multiprocessors with private caches, a set of data may be repeatedly used and modified by different threads. Such data sharing can often result in cache thrashing, which degrades memory performance. This paper presents and evaluates a loop restructuring method to reduce or even eliminate cache thrashing caused by true data sharing in nested parallel loops. This method uses a compiler analysis which applies linear algebra and the theory of numbers to the subscript expressions of array references. Due to this method’s simplicity, it can be efficiently implemented in any parallel compiler. Experimental results show quite significant performance improvements over existing static and dynamic scheduling methods.
Guohua Jin, Zhiyuan Li, Fujie Chen
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 1998
Where TC
Authors Guohua Jin, Zhiyuan Li, Fujie Chen
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