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Content Provider | IEEE Xplore Digital Library |
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Author | Ross, R. Nurmi, D. Cheng, A. Zingale, M. |
Copyright Year | 2001 |
Description | Author affiliation: Argonne National Laboratory (Ross, R.) |
Abstract | A critical but often ignored component of system performance is the I/O system. Todays applications demand a great deal from underlying storage systems and software, and both high-performance distributed storage and high level interfaces have been developed to fill these needs. In this paper we discuss the I/O performance of a parallel scientific application on a Linux cluster, the FLASH astrophysics code. This application relies on three I/O software components to provide high-performance parallel I/O on Linux clusters: the Parallel Virtual File System, the ROMIO MPI-IO implementation, and the Hierarchical Data Format library. Through instrumentation of both the application and underlying system software code we discover the location of major software bottlenecks. We work around the most inhibiting of these bottlenecks, showing substantial performance improvement. We point out similarities between the inefficiencies found here and those found in message passing systems, indicating that research in the message passing field could be leveraged to solve similar problems in high-level I/O interfaces. |
Starting Page | 59 |
Ending Page | 59 |
File Size | 172637 |
Page Count | 1 |
File Format | |
ISBN | 158113293X |
DOI | 10.1109/SC.2001.10046 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2001-11-10 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Non IEEE |
Subject Keyword | Linux Application software Message passing System performance Software systems Astrophysics File systems Software libraries Instruments System software |
Content Type | Text |
Resource Type | Article |
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