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000127966 0247_ $$2doi$$a10.1016/j.cpc.2012.10.024
000127966 0247_ $$2ISSN$$a1879-2944
000127966 0247_ $$2ISSN$$a1386-9485
000127966 0247_ $$2ISSN$$a0010-4655
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000127966 1001_ $$0P:(DE-Juel1)8990$$aGalonska, Andreas$$b0$$eCorresponding author
000127966 245__ $$aParallel universal access layer: A scalable I/O library for integrated tokamak modeling
000127966 260__ $$aAmsterdam$$bNorth Holland Publ. Co.$$c2013
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000127966 520__ $$aThe paper describes a parallel-I/O extension of the Universal Access Layer, a multi-language interface used for exchange of standardized data objects between Integrated Tokamak Modeling (ITM) codes. Although our evaluation focuses on Lustre, the general idea also applies to other parallel file systems. A snapshot of the current implementation is given, followed by an analysis of user and system requirements. The design derived from the serial version of the UAL is described, and emphasized features such as the ability to choose between serial and parallel I/O are explained. Performance tests comparing the implementation to other I/O methods are made to analyze the impact of the implementation. The outcome shows that the new implementation not only enables the I/O of datasets with several GB in size but also speeds up the write rate by a factor of 13 in the best case.
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000127966 7001_ $$0P:(DE-Juel1)132115$$aGibbon, Paul$$b1
000127966 7001_ $$0P:(DE-HGF)0$$aImbeaux, F.$$b2
000127966 7001_ $$0P:(DE-HGF)0$$aFrauel, Y.$$b3
000127966 7001_ $$0P:(DE-HGF)0$$aGuillerminet, B.$$b4
000127966 7001_ $$0P:(DE-HGF)0$$aManduchi, G.$$b5
000127966 7001_ $$0P:(DE-Juel1)132299$$aWolf, Felix$$b6
000127966 773__ $$0PERI:(DE-600)1466511-6$$a10.1016/j.cpc.2012.10.024$$n3$$p638–646$$tComputer physics communications$$v184$$y2013
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