| 一种高性能I／O方法 |
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| 引用本文： | 霍严梅,鞠九滨,胡亮.一种高性能I／O方法[J].计算机科学,2007,34(1):259-261. |
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| 作者姓名： | 霍严梅 鞠九滨 胡亮 |
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| 作者单位： | 吉林大学计算机科学与技术学院,长春,130012 |
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| 基金项目： | 国家自然科学基金
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吉林省杰出青年科学基金 |
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| 摘 要： | 并存文伴系统是解决I／O瓶颈问题的重要途径。研究表明，科学应用中跨越式的文件访问模式与现存并行文件系统访问这些数据的方法的结合，对于大型数据集的访问其I／O性能是难以接受的。为了提高并行文件系统中对不连续数据的I／O性能，创建了一种新型高性能I／O方法：用户自定义文件视图结合合并I／O请求。并且在WPFS并行文件系统中实现了该方法。研究和实验结果表明，该方法具有增强科学应用性能的潜力。
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| 关 键 词： | 跨越式文件访问 不连续数据访问 用户自定义文件视图 合并I／O请求 |
A High Performance I/O Method |
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| HUO Yan-Mei,JU Jiu-Bin,HU Liang.A High Performance I/O Method[J].Computer Science,2007,34(1):259-261. |
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| Authors: | HUO Yan-Mei JU Jiu-Bin HU Liang |
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| Affiliation: | College of Computer Science and Technology, Jilin University, Changchun 130012 |
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| Abstract: | Parallel file system is an important way of solving the I/O bottleneck. Research showed that the strided file access pattern in scientific applications combined with current parallel file system methods to perform these accesses lead to unacceptable performance for large data sets. To enhance performance of discontiguous data access, a new high performance I/O method has been created,the user-defined file view and combination I/O requests. This method has been implemented on WPFS. Theresearch and experimentation results show that this method can substantially enhance the performance of scientific applications. |
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| Keywords: | Strided file access Discontiguous data access User-defined file view Combination I/O requests |
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