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Kyle Gallivan, Dennis Gannon, William Jalby, Allen D. Malony, Harry A. G. Wijshoff, "Behavioral Characterization of Multiprocessor Memory Systems: a Case Study," ACM SIGMETRICS Performance Evaluation Review, Vol. 17, Issue 1, pp. 79-88, May 1989.

Keywords: cache memories, software engineering, array and vector processors, supercomputers, main memory

The speed and efficiency of the memory system is a key limiting factor in the performance of supercomputers. Consequently, one of the major concerns when developing a high- performance code, either manually or automatically, is determining and characterizing the influence of the memory system on performance in terms of algorithmic parameters. Unfortunately, the performance data available to an algorithm designer such as various benchmarks and, occasionally, manufacturer-supplied information, e.g. instruction timings and architecture component characteristics, are rarely sufficient for this task. In this paper, we discuss a systematic methodology for probing the performance characteristics of a memory system via a hierarchy of data-movement kernels. We present and analyze the results obtained by such a methodology on a cache-based multi-vector processor (Alliant FX/8). Finally, we indicate how these experimental results can be used for predicting the performance of simple Fortran codes by a combination of empirical observations, architectural models and analytical techniques.


Created: Fri Jun 11 10:44:06 2004

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