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Multiple-Level MPI File Write-Back and Prefetching for Blue Gene Systems
[chapter]
2009
Lecture Notes in Computer Science
Preserved Fulltext
This paper presents the design and implementation of an asynchronous data-staging strategy for file accesses based on ROMIO, the most popular MPI-IO distribution, and ZeptoOS, an open source operating system solution for Blue Gene systems. We describe and evaluate a two-level file write-back implementation and a one-level prefetching solution. The experimental results demonstrate that both solutions achieve high performance through a high degree of overlap between computation, communication, and file I/O.
doi:10.1007/978-3-642-03770-2_23
fatcat:zjpiuv4xbrcwrgjxwfiovqf4le