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Integrating logical and physical file models in the MPI-IO implementation for "Clusterfile"

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6 Author(s)
F. Isaila ; Dept. of Comput. Sci., Univ. Carlos III of Madrid, Spain ; D. Singh ; J. Carretero ; F. Garcia
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This paper presents the design and implementation of the MPI-IO interface for the Clusterfile parallel file system. The approach offers the opportunity of achieving a high correlation between the file access patterns of parallel applications and the physical file distribution. First, any physical file distribution can be expressed by means of MPI data types. Second, mechanisms such as views and collective I/O operations are portably implemented inside the file system, unifying the I/O scheduling strategies of the MPI-IO library and the file system. The experimental section demonstrates performance benefits of more than one order of magnitude.

Published in:

Cluster Computing and the Grid, 2006. CCGRID 06. Sixth IEEE International Symposium on  (Volume:1 )

Date of Conference:

16-19 May 2006