高性能FPGA处理器在叠前可希霍夫偏移中的应用

英文篇名：High performance FPGA-based coprocessor platform for accelerating Kirchhoff migration
中文刊名：西北地质
英文刊名：Northwestern Geology
作者：张栋 ; 杜清怀 ; 许孝坤
英文作者：ZHANG Dong~(1 ; 2) ; DU Qing-huai~(1 ; 2) ; XU Xiao-kun~2(1. China National Research Institute of Petroleum Exploration and Development ; Beijing 100083 ; China ; 2.Geophysical Exploration and Development Corporation of Shengli Oil Field ; Dongying ; Shandong 257100 ; China)
中文关键词：现场可编程 ; 可希霍夫偏移 ; 运算速度
英文关键词：Field Programmable Gate Array (FPGA) ; Kirchhoff migration ; arithmetic speed
出版日期：2004-12-30
机构：中国石油勘探开发科学研究院,中国石油勘探开发科学研究院,胜利油田地球物理勘探开发公司北京　100083胜利油田地球物理勘探开发公司山东东营　257100 ,北京　100083胜利油田地球物理勘探开发公司山东东营　257100 ,山东东营　257100
年：2004
期：04
出版单位：西北地质

摘要

笔者提出了SONIC可重新设置协处理器,它用来通过现场可编程(FPGA)技术加速三维叠前可希霍夫时间偏移(PSTM)。PSTM程序中费时最多的核心部分被编入基于FPGA的协处理器平台中。它作为一个硬件加速器附加在工作站上,通过并行合到一个FPGA芯片上来改善其运算性能。计算机模拟结果显示出SONIC平台在50MHz运行时,每秒钟可以计算5千万点的可希霍夫加法运算。这比参考的2.4GHz奔腾4工作站快15.6倍,该平台具有可重置性能,加上令人满意的运算速度,显示了它在地震数据处理业的广泛应用前途。
A reconfigurable coprocessor platform called SPACE (Seismic data Processing Accelerator with reConfigurable Engine) for speeding up 3D prestack Kirchhoff ray-bending time migration (PSTM) using Field Programmable Gate Array (FPGA) technology is proposed. The time-consuming kernel part of the PSTM procedure is programmed into the FPGA-based coprocessor platform, which acts as a hardware accelerator attached to an Intel-based workstation through the local Peripheral Controller Interface (PCI) bus. Improved performance can be achieved by integrating many parallel-running fully pipelined arithmetic units into a single FPGA chip. Our simulation shows that the SPACE platform operating at a conservative speed of 50 MHz can calculate the Kirchhoff summations for 50 million points per second, which is about 15.6 times faster than a referential 2.4 GHz Pentium 4 workstation. The reconfigurable property of the proposed platform combined with the impressive performance implies its broad applications in the seismic data processing industry.

引文

[1]BevcD.ImagingComplexstructurewithsemirecursiveKirchhoffmigration[J].Geophysics,1997,62,577-588.
    [2]SunChandMartinezRD.Amplitudepreserving3DprestacktimemigrationforV(z)media.64thConference&ExhibitionoftheEAGE,Florence2002.
    [3]SunChandMartinezRD.Amplitudepreserving3DprestacktimemigrationforVTImedia.FirstBreak,2002,19,618-624.
    [4]SunCh,WangH.andMartinezRD.2002.Optimized6thorderNMOCorrectionforLong-offsetSeismicData[A].SEG72thannualmeeting,SaltLakeCity,Utah2002.
    [5]AudebertF.3-Dprestackdepthmigration:WhyKirchhoff?StanfordExplorationProject,Report1994,80.
    [6]XilinxInc.VertexIIProPlatformFPGAHandbook.www.xilinx.com.2002.
    [7]PattersonandHennessy.ComputerArchitecture:AQuantitativeApproach.SecondEdition.1996.