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Performance Analyst and Computer Architect for Scientific and Engineering Applications, Oceanographer
Principle Member of the Technical Staff
Advanced Micro Devices , Inc.
The HPC Challenge Benchmark
College of Marine Studies at the University of Delaware
McCalpin Websites and Addresses
SC2004 - Interactive Schedule
John McCalpin, IBM, discussed simple and composite metrics for system throughput."The question I'm asking is, how simple can you get?How much can you explain with one parameter?Now, what the right second parameter?What's the minimal number of parameters I need?"McCalpin said the number of degrees of parallelism in even the simplest HPC machines creates a huge potential performance range."I used a composite model that makes bytles/flop a simple function of cache size.This revised metric is a much better performance predictor for SPECfp_rate2000."Composite methodology is simple to understand and measure and based on a mathematically correct model,
Arthur J. Gallagher & Co.
Anne Arundel County Public Schools
Integral UK Limited