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ICCS
2009
Springer

Performance Evaluation of Collective Write Algorithms in MPI I/O

9 years 8 months ago
Performance Evaluation of Collective Write Algorithms in MPI I/O
MPI is the de-facto standard for message passing in parallel scientific applications. MPI-IO is a part of the MPI-2 specification defining file I/O operations in the MPI world. MPI-IO enables performance optimizations for collective file I/O operations as it acts as a portability layer between the application and the file system. The goal of this study is to optimize collective file I/O operations. Three different algorithms for performing collective I/O operations have been developed, implemented, and evaluated on a PVFS2 file system and over NFS. The results indicate that different algorithms promise the highest write bandwidth for different number of processors, application settings and file systems, making a one-size-fits-all solution inefficient.
Mohamad Chaarawi, Suneet Chandok, Edgar Gabriel
Added 25 Jul 2010
Updated 25 Jul 2010
Type Conference
Year 2009
Where ICCS
Authors Mohamad Chaarawi, Suneet Chandok, Edgar Gabriel
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