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Thursday, March 16 • 11:40am - 12:00pm
Programming: A Pipeline Implementation of One-way Wave Equation Migration

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This abstract proposes a pipeline implementation of the one-way wave equation depth migration, in which depths are distributed evenly among computing nodes so that the machine memory is big enough to hold the portion of the image volume on each node. The computing nodes are connected in depth series, where the extrapolated wavefields at the last depth step of one node are sent to the next node as the initial input wavefields to start its downward continuation. Once the pipeline is filled up, this implementation allows overlapping the one-way wave equation migration among nodes with synchronization via MPI point-to-point communication between neighbor nodes. The intent is to mitigate the burden of the I/O and network traffic when producing large image gathers with one-way wave equation migration.

avatar for Alex Loddoch

Alex Loddoch

TechExpert HPC, Chevron
avatar for Scott Morton

Scott Morton

Manager and Global Geophysical Advisor, Hess Corporation
Scott Morton has 25 years of experience in computational and theoretical physics distributed between academia, the computer industry and the petroleum industry. Although originally trained as an astrophysicist, he switched to geophysics when he joined Shell in 1991 to do research and development in seismic imaging. Scott spent the next 7 years distributed between Shell, Thinking Machines, Cray Research and SGI, gaining expertise in both... Read More →


Thursday March 16, 2017 11:40am - 12:00pm
Room 103 BRC

Attendees (2)