Specification and performance evaluation of parallel I/O interfaces for OpenMP

Kshitij Mehta; Edgar Gabriel; Barbara Chapman

doi:10.1007/978-3-642-30961-8_1

Specification and performance evaluation of parallel I/O interfaces for OpenMP

Kshitij Mehta, Edgar Gabriel, Barbara Chapman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

One of the most severe performance limitations of parallel applications today stems from the performance of I/O operations. Numerous projects have shown, that parallel I/O in combination with parallel file systems can significantly improve the performance of I/O operations. However, as of today there is no support for parallel I/O operations for applications using shared-memory programming models such as OpenMP. This paper introduces parallel I/O interfaces for OpenMP. We discuss the rationale of our design decisions, present the interface specification and a prototype implementation with the OpenUH compiler. We evaluate the performance of our implementation for various benchmarks on different file systems and demonstrate the benefits of the new interfaces.

Original language	English
Title of host publication	OpenMP in a Heterogeneous World - 8th International Workshop on OpenMP, IWOMP 2012, Proceedings
Pages	1-14
Number of pages	14
DOIs	https://doi.org/10.1007/978-3-642-30961-8_1
State	Published - 2012
Externally published	Yes
Event	8th International Workshop on OpenMP, IWOMP 2012 - Rome, Italy Duration: Jun 11 2012 → Jun 13 2012

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	7312 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	8th International Workshop on OpenMP, IWOMP 2012
Country/Territory	Italy
City	Rome
Period	06/11/12 → 06/13/12

Access to Document

10.1007/978-3-642-30961-8_1

Cite this

Mehta, K., Gabriel, E., & Chapman, B. (2012). Specification and performance evaluation of parallel I/O interfaces for OpenMP. In OpenMP in a Heterogeneous World - 8th International Workshop on OpenMP, IWOMP 2012, Proceedings (pp. 1-14). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 7312 LNCS). https://doi.org/10.1007/978-3-642-30961-8_1

Mehta, Kshitij ; Gabriel, Edgar ; Chapman, Barbara. / Specification and performance evaluation of parallel I/O interfaces for OpenMP. OpenMP in a Heterogeneous World - 8th International Workshop on OpenMP, IWOMP 2012, Proceedings. 2012. pp. 1-14 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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abstract = "One of the most severe performance limitations of parallel applications today stems from the performance of I/O operations. Numerous projects have shown, that parallel I/O in combination with parallel file systems can significantly improve the performance of I/O operations. However, as of today there is no support for parallel I/O operations for applications using shared-memory programming models such as OpenMP. This paper introduces parallel I/O interfaces for OpenMP. We discuss the rationale of our design decisions, present the interface specification and a prototype implementation with the OpenUH compiler. We evaluate the performance of our implementation for various benchmarks on different file systems and demonstrate the benefits of the new interfaces.",

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Mehta, K, Gabriel, E & Chapman, B 2012, Specification and performance evaluation of parallel I/O interfaces for OpenMP. in OpenMP in a Heterogeneous World - 8th International Workshop on OpenMP, IWOMP 2012, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 7312 LNCS, pp. 1-14, 8th International Workshop on OpenMP, IWOMP 2012, Rome, Italy, 06/11/12. https://doi.org/10.1007/978-3-642-30961-8_1

Specification and performance evaluation of parallel I/O interfaces for OpenMP. / Mehta, Kshitij; Gabriel, Edgar; Chapman, Barbara.
OpenMP in a Heterogeneous World - 8th International Workshop on OpenMP, IWOMP 2012, Proceedings. 2012. p. 1-14 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 7312 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - One of the most severe performance limitations of parallel applications today stems from the performance of I/O operations. Numerous projects have shown, that parallel I/O in combination with parallel file systems can significantly improve the performance of I/O operations. However, as of today there is no support for parallel I/O operations for applications using shared-memory programming models such as OpenMP. This paper introduces parallel I/O interfaces for OpenMP. We discuss the rationale of our design decisions, present the interface specification and a prototype implementation with the OpenUH compiler. We evaluate the performance of our implementation for various benchmarks on different file systems and demonstrate the benefits of the new interfaces.

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Mehta K, Gabriel E, Chapman B. Specification and performance evaluation of parallel I/O interfaces for OpenMP. In OpenMP in a Heterogeneous World - 8th International Workshop on OpenMP, IWOMP 2012, Proceedings. 2012. p. 1-14. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). doi: 10.1007/978-3-642-30961-8_1

Specification and performance evaluation of parallel I/O interfaces for OpenMP

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