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: Chapman, B.M., Massaioli, F., Müller, M.S., Rorro, M. (eds) OpenMP in a Heterogeneous World. IWOMP 2012. Lecture Notes in Computer Science, vol 7312. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30961-8_1
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DOI: https://doi.org/10.1007/978-3-642-30961-8_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-30960-1
Online ISBN: 978-3-642-30961-8
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