Software Support for Multiprocessor Latency Measurement and Evaluation

Authors:
Yong Yan;Xiaodong Zhang;Qian Ma
Affiliations:
Univ. of Texas, San Antonio;Univ. of Texas, San Antonio;Beijing Automated Systems Co., Beijing, China
Venue:
IEEE Transactions on Software Engineering
Year:
1997

Citing 10
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Abstract

Parallel computing scalability evaluates the extent to which parallel programs and architectures can effectively utilize increasing numbers of processors. In this paper, we compare a group of existing scalability metrics and evaluation models with an experimental metric which uses network latency to measure and evaluate the scalability of parallel programs and architectures. To provide insight into dynamic system performance, we have developed an integrated software environment prototype for measuring and evaluating multiprocessor scalability performance, called Scale-Graph. Scale-Graph uses a graphical instrumentation monitor to collect, measure and analyze latency-related data, and to display scalability performance based on various program execution patterns. The graphical software tool is X-window based and currently implemented on standard workstations to analyze performance data of the KSR-1, a hierarchical ring-based shared-memory architecture.