| 叠前偏移计算中多文件并行I/O技术 |
| |
| 引用本文： | 孔祥宁,赵改善,王华忠,程玖兵.叠前偏移计算中多文件并行I/O技术[J].物探化探计算技术,2005,27(2):97-101. |
| |
| 作者姓名： | 孔祥宁 赵改善 王华忠 程玖兵 |
| |
| 作者单位： | 1. 中国石化石油勘探开发研究院,南京石油物探研究所,江苏,南京,210014
2. 同济大学,上海,200092 |
| |
| 摘 要： | 这里针对波动方程叠前深度偏移计算所涉及的数据,设计相应的数据文件格式,快速有效地从多文件海量数据中获取所需信息;根据不同的输入/输出数据,采用不同读写方式(串行/并行);解决了并行计算时的负载平衡以及计算中断后的数据恢复,充分提高了波动方程叠前深度偏移计算效率。
|
| 关 键 词： | 数据管理 多文件并行处理 负载平衡 输入/输出 |
| 文章编号： | 1001-1749(2005)02-0097-05 |
AN I/O TECHNIQUE OF MULTI-FILE PARALLEL PROCESSING FOR PRESTACK DEPTH MIGRATION |
| |
| KONG Xiang-ning,ZHAO Gai-shan,WANG Hua-Zhong,CHENG Jiu-Bing.AN I/O TECHNIQUE OF MULTI-FILE PARALLEL PROCESSING FOR PRESTACK DEPTH MIGRATION[J].Computing Techniques For Geophysical and Geochemical Exploration,2005,27(2):97-101. |
| |
| Authors: | KONG Xiang-ning ZHAO Gai-shan WANG Hua-Zhong CHENG Jiu-Bing |
| |
| Institution: | KONG Xiang-ning~1,ZHAO Gai-shan~1,WANG Hua-zhong~2,CHENG Jiu-bing~2 |
| |
| Abstract: | With the fast development of the high-performance and large-scale parallel computer technology, wave equation (WE) 3D prestack depth migration (PSDM) is going into the practical application in the oil exploration. 3D PSDM directly operates the large amount of seismic gather data stored on the hard disks in the multi-file forms. According to the data types involved in WE 3D PSDM, we design the corresponding data-file formats. With them, we can quickly read/write the data from the huge amount of data on the disks. Meanwhile, using different reading/writing methods (eg. sequence/parallel reading/writing) for different input/output data, the problems of load-balance and break-restoring are solved. The calculation efficiency of WE 3D PSDM is greatly improved. |
| |
| Keywords: | data management multi-file parallel processing load balance I/O |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
