A study of I/O behavior of perfect benchmarks on a multiprocessor

Authors:
A. L. Narasimha Reddy;Prithviraj Banerjee
Affiliations:
Center for Reliable and High Perfromance Computing, University of Illinois, 1101, W.Springfield Ave., Urbana, IL;Center for Reliable and High Perfromance Computing, University of Illinois, 1101, W.Springfield Ave., Urbana, IL
Venue:
ISCA '90 Proceedings of the 17th annual international symposium on Computer Architecture
Year:
1990

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Abstract

The I/O behavior of some scientific applications, a subset of Perfect benchmarks, executing on a multiprocessor is studied. The aim of this study is to explore the various patterns of I/O access of large scientific applications and to understand the impact of this observed behavior on the I/O subsystem architecture. I/O behavior of the program is characterized by the demands it imposes on the I/O subsystem. It is observed that implicit I/O or paging is not a major problem for the applications considered and the I/O problem is mainly manifest in the explicit I/O done in the program. Various characteristics of I/O accesses are studied and their impact on architecture design is discussed.