Vector Performance Analysis of Three Supercomputers
Vector Performance Analysis of Three Supercomputers
复制标题
三台超级计算机的矢量性能分析
DOI：
--
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Cray Y
中科院分区：
文献类型：
--
作者：
Cray Y
本文提出了一系列实验的结果，以研究三个超级计算机的单个处理器性能：Cray-2，Cray Y MP和ET A10-Q。在现代超级计算机的性能上，例如时钟周期，内存链接，多个功能单位和链接在这些机器上实现此矢量长度和三个内存步幅的操作。与Cray-2和Eta10-Q相比，这些操作多达四次两种算法rithm的三个问题大小，Cray Y-MP的表现使Cray-2优于43％至68％，ETA10-Q的表现为4到八次。
This paper presents the results of a series of experiments to study the single processor perfor mance of three supercomputers: Cray-2, Cray Y MP, and ET A10-Q. The main object of this study is to determine the impact of certain architectural features on the performance of modern supercomput ers. Features such as clock period, memory links, memory organization, multiple functional units, and chaining are considered here. A simple performance model is used to examine the impact of these features on the performance of a set of basic operations. The results of implementing this set on these machines for three vector lengths and three memory strides are presented and compared. For unit stride operations, the Cray Y-MP outperformed the Cray-2 by as much as three times and the ETA10-Q by as much as four times for these operations. Moreover, unlike the Cray-2 and ETA10-Q, even-numbered strides do not cause a major performance degradation on the Cray Y-MP. Two numerical algorithms are also used for comparison. For three problem sizes of both algo rithms, the Cray Y-MP outperformed the Cray-2 by 43% to 68% and the ETA10-Q by four to eight times.