Performance Analysis of the Subgroup Method for Collective I/O
Performance Analysis of the Subgroup Method for Collective I/O
复制标题
集体I/O子组法的性能分析
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Sungho Kim
中科院分区：
文献类型：
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作者：
Kwangho Cha;Hyeyoung Cho;Sungho Kim
As many scientific applications require large data processing, the importance of parallel I/O has been increasingly recognized. Collective I/O is one of the considerable features of parallel I/O and enables application programmers to easily handle their large data volume. In this paper we measured and analyzed the performance of original collective I/O and the subgroup method, the way of using collective I/O of MPI effectively. From the experimental results, we found that the subgroup method showed good performance with small data size. Keywords—Collective I/O, MPI, Parallel Filesystem.
