User-Level Parallel File I/O
Parallel disk I/O subsystems are becoming more important in today’s large-scale parallel machines. Parallel disk systems provide a significant boost in I/O performance reducing the gap between processor and disk speeds. We describe a Unix-like file I/O user interface, implemented in a paral...
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Centro Latinoamericano de Estudios en Informática
1998-06-01
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Series: | CLEI Electronic Journal |
Online Access: | http://clei.org/cleiej-beta/index.php/cleiej/article/view/382 |
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doaj-2816a6831ad5415f80036a736de6974b2020-11-25T00:21:33ZengCentro Latinoamericano de Estudios en InformáticaCLEI Electronic Journal0717-50001998-06-011110.19153/cleiej.1.1.5User-Level Parallel File I/OErnst L. Leiss0Yili Wang1Department of Computer Science, University of HoustonDepartment of Computer Science, University of Houston Parallel disk I/O subsystems are becoming more important in today’s large-scale parallel machines. Parallel disk systems provide a significant boost in I/O performance reducing the gap between processor and disk speeds. We describe a Unix-like file I/O user interface, implemented in a parallel file I/O subsystem on an MIMD machine, the nCUBE 2. Based on message passing, we develop parallel disk read/write algorithms to achieve higher parallelism when more disk drives are used. We use the closed queuing network model to analyze the effect of some tunable system parameters for our parallel file system. We then performed simulation experiments in order to obtain more realistic performance data, by comparing the original vendor-supplied file system with ours. The results indicate that the speedup in I/O performance is almost equal to the number of disk drives we use. Thus, our user-level parallel file I/O approach will provide scalable I/O performance. http://clei.org/cleiej-beta/index.php/cleiej/article/view/382 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ernst L. Leiss Yili Wang |
spellingShingle |
Ernst L. Leiss Yili Wang User-Level Parallel File I/O CLEI Electronic Journal |
author_facet |
Ernst L. Leiss Yili Wang |
author_sort |
Ernst L. Leiss |
title |
User-Level Parallel File I/O |
title_short |
User-Level Parallel File I/O |
title_full |
User-Level Parallel File I/O |
title_fullStr |
User-Level Parallel File I/O |
title_full_unstemmed |
User-Level Parallel File I/O |
title_sort |
user-level parallel file i/o |
publisher |
Centro Latinoamericano de Estudios en Informática |
series |
CLEI Electronic Journal |
issn |
0717-5000 |
publishDate |
1998-06-01 |
description |
Parallel disk I/O subsystems are becoming more important in today’s large-scale parallel machines. Parallel disk systems provide a significant boost in I/O performance reducing the gap between processor and disk speeds. We describe a Unix-like file I/O user interface, implemented in a parallel file I/O subsystem on an MIMD machine, the nCUBE 2. Based on message passing, we develop parallel disk read/write algorithms to achieve higher parallelism when more disk drives are used. We use the closed queuing network model to analyze the effect of some tunable system parameters for our parallel file system. We then performed simulation experiments in order to obtain more realistic performance data, by comparing the original vendor-supplied file system with ours. The results indicate that the speedup in I/O performance is almost equal to the number of disk drives we use. Thus, our user-level parallel file I/O approach will provide scalable I/O performance.
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url |
http://clei.org/cleiej-beta/index.php/cleiej/article/view/382 |
work_keys_str_mv |
AT ernstlleiss userlevelparallelfileio AT yiliwang userlevelparallelfileio |
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