Multivariate statistical techniques for parallel performance prediction
نویسندگان
چکیده
Performance prediction can play an important role in improving the efficiency of multicomputers in executing scalable parallel applications. An accurate model of program execution time must include detailed algorithmic and architectural characterizations. The exact values for critical model parameters such as message latency and cache miss penalty can often be dificult to determine. This research uses multivariate data analysis to estimate the values of these coefficients in an analytical model. Representing the coeficients as random variables with a specified mean and variance improves the utility of a performance model. Confidence intervals for predicted execution time can be generated using the standard error values for model parameters. Improvements in the model can also be made by investigating the cause of large variance values for a particular architecture.
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تاریخ انتشار 1995