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EFFICIENT PARALLEL I/O IN SEISMIC IMAGING

机译:地震成像中的高效并行I / O

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摘要

Although high performance computers tend to be measured by their processor and communication speeds, the bottleneck for many large-scale applications is the I/O performance rather than the computational or communication performance. One such application is the processing of three-dimensional seismic data. Seismic data sets, consisting of recorded pressure waves, can be very large, sometimes more than a terabyte in size. Even if the computations can be performed in core, the time required to read the initial seismic data and velocity model and write images is substantial. In this paper, the authors discuss an approach in handling the massive I/O requirements of seismic processing and show the performance of their imaging code (Salvo) on the Intel Paragon™ computer.
机译:尽管高性能计算机往往由其处理器和通信速度来衡量,但许多大型应用程序的瓶颈在于I / O性能,而不是计算或通信性能。一种这样的应用是三维地震数据的处理。由记录的压力波组成的地震数据集可能非常大,有时甚至超过1 TB。即使可以在核心中执行计算,读取初始地震数据和速度模型以及写入图像所需的时间也很长。在本文中,作者讨论了一种处理地震处理的大量I / O要求的方法,并展示了其成像代码(Salvo)在Intel Paragon™计算机上的性能。

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