收稿日期: 2002-05-13
修回日期: 2002-10-08
网络出版日期: 2003-05-10
基金资助
中国科学院知识创新工程重大项目资助课题(KZCXIy01);国家自然科学基金;大庆石油管理局资助项目(49894190);国家高性能计算基金资助项目(000123)
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Received date: 2002-05-13
Revised date: 2002-10-08
Online published: 2003-05-10
Supported by
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刘礼农 , 刘洪 , 李幼铭 . 波动方程三维叠前深度偏移并行计算的负载平衡方案[J]. 中国科学院大学学报, 2003 , 20(3) : 321 -327 . DOI: 10.7523/j.issn.2095-6134.2003.3.010
The improvement and combination of software and hardware of PC cluster have been an increasingly helpful tool of handling over the huge computation of wave equation 3-D prestack depth migration.Load balance among the nodes of cluster, however, was the bottleneck of the speeding-up ratio of the parallel algorithms.The index sort and heapsort was applied to distribute the migration work of each node and realize dynamic load balance.Discusses the load balance strategy in common shot wave equation 3-D prestack depth migration computation in detail and shows satisfied speeding-up ratio through efficiency test on the field data.
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