A NUMERICAL SEISMIC 3-D MIGRATION MODEL FOR VECTOR MULTIPROCESSORS

被引：4

作者：

HSIUNG, CC ^{[1
]}

BUTSCHER, W ^{[1
]}

机构：

[1] CRAY RES,D-8000 MUNCHEN 21,FED REP GER

来源：

PARALLEL COMPUTING | 1984年 / 1卷 / 02期

关键词：

COMPUTER PROGRAMMING - Algorithms - SEISMIC WAVES - Computer Aided Analysis - SEISMOLOGY - Exploration;

D O I：

10.1016/S0167-8191(84)90012-7

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The availability of a multiprocessor vector machine, such as the CRAY X-MP, along with large, fast secondary memory such as the CRAY SSD, opens new frontiers to numerical algorithm design for 3-D simulations. The 3-D seismic migration, which is of crucial importance in exploration seismology, is studied as a model problem. The numerical model discussed in this paper employs an alternating direction implicit (ADI) Crank-Nicolson scheme which takes full advantage of the parallel architecture of the underlying machine. It is demonstrated that careful algorithm design can lead to a significant speedup of the calculation when more than one processor is used. The throughput times obtained in this study are an order of magnitude faster than some conventional approaches. (Editor author abstract)

引用

页码：113 / 120

页数：8

共 7 条

[1] COARSE GRID CALCULATIONS OF WAVES IN INHOMOGENEOUS MEDIA WITH APPLICATION TO DELINEATION OF COMPLICATED SEISMIC STRUCTURE [J].