【摘要】 波动方程叠前深度偏移等地震资料处理需要相当大规模的计算资源条件．巨型并行机因其计算能力强而备受工业界的青睐，但其价格的昂贵也限制了使用范围．近年来国际上出现的微机群是一种大规模并行计算的廉价实现方案，本文即是讨论利用微机群来实现Ｍａｒｍｏｕｓｉ模型叠前深度偏移所涉及的数值实现．为比较起见，我们选择国际上大规模分布式并行计算机代表－ＩＢＭＳＰ－２以进行计算性能的比较．更多还原

【Abstract】 The computation of seismic wave equation pre-stack depth migration costs much time and needs many equipments. The huge parallel computer was greatly welcomed to industry because of its high computational ability. But it is too expensive to expand its customer. The latest massively parallel computer established by Linux on PC cluster, named Beowulf cluster, is a very economical alternative. In this paper, we discussed the implementation of PC cluster for pre-stack depth migration on Mar- mousi model. To be compared, we choose the famous IBM-SF2 as reference to demonstrate the perfor- mance of PC cluster.更多还原