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Using PI/OT to support complex parallel I/O

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4 Author(s)
Parsons, I. ; Dept. of Comput. Sci., Alberta Univ., Edmonton, Alta., Canada ; Schaeffer, Jonathan ; Szafron, D. ; Unrau, Ron

This paper describes PI/OT, a template-based parallel I/O system. In PI/OT, I/O streams have annotations associated with them that are external to the source code. These annotations specify an I/O behavior (template) and some modifiers (attributes). This paper shows how PI/OT attributes can be used to handle irregular data structures, and how the templates can be hierarchically composed to support complex I/O access patterns. PI/OT's separation of I/O specifications from the source code allows users to create these parallel I/O behaviors quickly and correctly. We demonstrate these capabilities by describing how PI/OT can be used to implement a biochemistry application and by discussing the performance results

Published in:

Parallel Processing Symposium, 1998. IPPS/SPDP 1998. Proceedings of the First Merged International ... and Symposium on Parallel and Distributed Processing 1998

Date of Conference:

30 Mar-3 Apr 1998

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