Extending the POSIX I/O interface: a parallel file system perspective.

Vilayannur, M. ; Lang, S. ; Ross, R. ; Klundt, R. ; Ward, L. ; Mathematics and Computer Science ; VMWare, Inc. ; SNL

关键词: 97;    P CODES;    INPUT-OUTPUT ANALYSIS;    PARALLEL PROCESSING;    DESIGN;    EVALUATION;    IMPLEMENTATION;    PERFORMANCE;   

DOI  :  10.2172/946036
RP-ID  :  ANL/MCS-TM-302
PID  :  OSTI ID: 946036
Others  :  TRN: US200904%%22

学科分类：社会科学、人文和艺术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

The 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 HPC 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.