异构并行工作站机群系统的性能评价指标

MODELING PARALLEL COMPUTING PERFOR MANCE FOR HETEROGENEOUS WORKSTATION CLUSTERS

文中在对矩阵乘法进行实验研究的基础上，分析了异构性对工作站机群系统性能的影响，描述了异构性的数学模型，扩展了加速比和效率等性能指标的定义，使之能同时适用于同构、异构两种并行系统的性能评价．

Speedup and efficiency are widely used to evaluate the performance of parallel computing systems. However, they work well only in homogeneous parallel systems. The introduction of heterogeneity in workstation clusters makes them not suitable for parallel computing. To cope with this problem, the heterogeneity of workstation clusters is quantified,and the speedup and efficiency are redefined on the basis of two matrix multiplication experiments. These new models are general enough to cover performance evaluation of both homogeneous and heterogeneous computations.