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15th Euromicro International Conference on Parallel, Distributed and Network-Based Processing (PDP'07) (2007)
Naples, Italy
Feb. 7, 2007 to Feb. 9, 2007
ISSN: 1066-6192
ISBN: 0-7695-2784-1
pp: 534-542
David E. Singh , Carlos III University of Madrid, Spain
Florin Isaila , Carlos III University of Madrid, Spain
Alejandro Calderon , Carlos III University of Madrid, Spain
Felix Garcia , Carlos III University of Madrid, Spain
Jesus Carretero , Carlos III University of Madrid, Spain
ABSTRACT
This paper presents Multiple-Phase Collective I/O, a novel collective I/O technique for distributed memory multi-processors. Multiple-Phase Collective I/O is a refinement of two-phase collective I/O technique. The communication phase is structured into several steps, which progressively increase the locality of the data to be written to a file system. <p>Besides the description ofMultiple-Phase Collective I/O, our paper addresses two additional objectives. First, we target to improve the efficiency of the Sulphur Transport Eurelian Model 2 (STEM-II) application. STEM-II is an air quality model that simulates transport, chemical transformations, emission and deposition processes in a unified framework. Due to the large amount of processed data, I/O becomes a critical factor for the application performance. Multiple-Phase Collective I/O, considerably enhances the performance of the I/O stage in particular and, consequently, of the whole application in general. Second objective consists of evaluating and comparing the performance of Multiple-Phase Collective I/O with that of other well known parallel I/O techniques.</p>
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CITATION

F. Garcia, F. Isaila, J. Carretero, A. Calderon and D. E. Singh, "Multiple-Phase Collective I/O Technique for Improving Data Access Locality," 15th Euromicro International Conference on Parallel, Distributed and Network-Based Processing (PDP'07)(PDP), Naples, Italy, 2007, pp. 534-542.
doi:10.1109/PDP.2007.54
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