CAJ | 학술논문

本文详细阐述了并行计算技术及其在地球物理勘探数据处理中的发展现状和发展趋势,分析了几个代表性的并行算法实例.这些结果表明,在拥有强大的并行机的基础上,基于并行计算开发环境(MPI和PVM等)设计高效的并行算法,通过分配合理的并行粒度、通信开销、负载平衡等执行高效的并行计算,可以有效加快处理速度、降低成本.目前,并行算法在地震数据处理中应用已较为成熟,近年来向更实用的基于PC机群的并行技术发展.然而,在非地震方法中,并行算法应用较少见文献报道,研究尚处于初级研究阶段.在大地电磁的二维和三维正、反演问题上,并行计算技术逐渐得到越来越多关注和重视.随着资源和能源需求的增长,地球物理勘探向深度和广度快速发展,大幅增长的数据量使得高性能并行计算机和高效的并行算法在勘探地球物理学中的发展和应用将占据愈来愈重要的地位.
본문상세천술료병행계산기술급기재지구물리감탐수거처리중적발전현상화발전추세,분석료궤개대표성적병행산법실례.저사결과표명,재옹유강대적병행궤적기출상,기우병행계산개발배경(MPI화PVM등)설계고효적병행산법,통과분배합리적병행립도、통신개소、부재평형등집행고효적병행계산,가이유효가쾌처리속도、강저성본.목전,병행산법재지진수거처리중응용이교위성숙,근년래향경실용적기우PC궤군적병행기술발전.연이,재비지진방법중,병행산법응용교소견문헌보도,연구상처우초급연구계단.재대지전자적이유화삼유정、반연문제상,병행계산기술축점득도월래월다관주화중시.수착자원화능원수구적증장,지구물리감탐향심도화엄도쾌속발전,대폭증장적수거량사득고성능병행계산궤화고효적병행산법재감탐지구물이학중적발전화응용장점거유래유중요적지위.
We present the parallel computing technology and its development status in geophysical exploration data processing,and analyze some representative parallel algorithm examples in geophysics.Parallel computing can effectively speed up the processing and reduce the cost based on powerful parallel computer,design efficient parallel algorithm in the parallel computing exploiting environment(MPI,PVW,etc)by allotting rational parallel granularity,communication cost,and load balance.The application of parallel algorithm is quite mature in the seismic data processing,which is developing ahead toward the more practical parallel technology based the PC cluster in recent years.But in the non-seismic aspects there are few reports on the parallel algorithm,and the research is still at the initial stage.For the 2D and 3D MT inversion,the parallel technology is getting more and more attention and recognition.With the demand growth of resources and energy,the exploration development to the depth and extent has resulted in the rapid increase of the data,which promotes the development and application of high performance parallel computing(HPC)technology in geophysics.