@article{(Open Science Index):https://publications.waset.org/pdf/1854, title = {Performance Analysis of the Subgroup Method for Collective I/O}, author = {Kwangho Cha and Hyeyoung Cho and Sungho Kim}, country = {}, institution = {}, abstract = {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. }, journal = {International Journal of Computer and Information Engineering}, volume = {1}, number = {8}, year = {2007}, pages = {2344 - 2347}, ee = {https://publications.waset.org/pdf/1854}, url = {https://publications.waset.org/vol/8}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 8, 2007}, }