Developing a Tuned Version of ScaLAPACK's Linear Equation Solver.

Dongarra, J.

Technical Information Center Oak Ridge Tennessee

关键词: Benchmarks;    Computer benchmarking;    Linear equations;    Performance;    Peak values;   

RP-ID  :  DE200515013126

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The LINPACK Benchmark has been used as a yardstick in measuring the performance of the Top500 installed high-end computers. This benchmark was chosen because it is widely used and performance numbers are available for almost all relevant systems. The approach used in the LINPACK Benchmark is to solve a dense system of linear equations. For the Top500, the benchmark allows the user to scale the size of the problem and to optimize the software in order to achieve the best performance for a given machine. This performance does not reflect the overall performance of a given system, as no single number ever can. It does, however, reflect the performance of a dedicated system for solving a dense system of linear equations. Since the problem is very regular, the performance achieved is quite high, and the performance numbers give a good check of peak performance of a system.