All current high performance computing platforms utilize parallel processing technology, with system sizes ranging from less than ten to a few thousand powerful processors. Geophysical computational tasks are now almost invariably 3D, from the processing of 3D seismic surveys to the modeling of wireline logging measurements. This paper reviews the computational challenges presented by 3D geophysics and describes the results that we have achieved using highly parallel systems. Because 3D structures are inherently more complex than 2D structures, realizing the full benefits of high performance systems requires ever more sophisticated visualization and model construction tools. We briefly review work on employing highly parallel systems in support of such tasks.

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