Argonne National Laboratory

Extending the POSIX I/O Interface: A Parallel File System Perspective

TitleExtending the POSIX I/O Interface: A Parallel File System Perspective
Publication TypeReport
Year of Publication2008
AuthorsVilayannur, M, Lang, S, Ross, RB, Klundt, R, Ward, L
Document NumberANL/MCS-TM-302
AbstractThe POSIX interface does not lend itself well to enabling good performance for high-end applications. Extensions are needed in the POSIX I/O interface so that high-concurrency high-performance computing applications running on top of parallel file systems perform well. This paper presents the rationale, design, and evaluation of a reference implementation of a subset of the POSIX I/O interfaces on a widely used parallel file system (PVFS) on clusters. Experimental results on a set of micro-benchmarks confirm that the extensions to the POSIX interface greatly improve scalability and performance.
PDFhttp://www.mcs.anl.gov/papers/TM-302-FINAL.pdf