| 摘要: |
| 随着NOW(networksofworkstations)在科学研究中的应用日益广泛,如何为NOW上的科学计算提供高性能的输入、输出成为人们所面临的一个新课题.根据NOW的特点,设计并实现了一个具有NOW特色的采用CollectiveI/O技术的并行I/O系统CION(collectiveI/Oonnowsystem).CION吸取了DDIO(disk-directedI/O)与two-phaseI/O的优点,同时采用了数据筛选等一系列优化技术.初步的测试已经显示了良好的系统性能. |
| 关键词: NOW(networks of workstations) collective I/O disk-directed I/O two-phase I/O 数据筛选 |
| DOI： |
| 分类号: |
| 基金项目:国家863高科技发展计划资助项目(863-306-ZT02-03-01) |
|
| A Parallel I/O System Based on NOW |
|
LI Ji,CHEN Xiao lin,LU Sang lu,CHEN Gui hai,XIE Li
|
| Abstract: |
| As NOW (networks of workstations) is increasingly used to run scientific applications, how to provide high performance I/O for I/O-intensive applications has become one of the crucial components in NOW environments. In the paper, the design and implementation of Collective I/O system on NOW is presented. The system combines the advantages of both DDIO (disk-directed I/O) and two-phase I/O and a series of optimizations such as data sieving are employed. The initial performance evaluations have shown good I/O performance. |
| Key words: NOW （networks of workstations） collective I/O disk directed I/O two phase I/O data sieving |
