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Thursday, February 28 • 1:45pm - 2:10pm
Accelerated Computing: "Forward seismic modeling on AMD Accelerated Processing Unit," Henri Calandra, Total


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Seismic modeling is an area of significant research in the Oil and Gas industry. Forward modeling consists in computing theoretical or synthetic seismograms in order to validate a real geological model by comparing the synthetic data with the field data. This corresponds to a basic problem in reflection seismology, which is to determine the wave response of a given model to the excitation of an impulse source by solving the wave equation. The modeling of wave propagation with high accuracy in complex media is useful for data interpretation, for velocity analysis and for understanding imaging problems, with the help of many inversion algorithms such as migrations (Reverse Time Migration, Kirchhoff migration etc.) that highly require communication in order to store data snapshots. Such applications are extremely resource-intensive, in terms of compute power and also of memory bandwidth, and need resources far greater than a single CPU can provide. Thanks to the advent of high performance computing facilities, these applications are seeing significant acceleration using clusters of multi-core CPUs and GPUs (Graphic Processing Units). Although very large gains in performance can be achieved by GPUs, the PCI interconnection between CPU and GPU remains the bottleneck for this kind of calculations due to their high CPU-GPU communication requirements (data snapshots).

avatar for Simanti Das

Simanti Das

Manager, High Performance Computing Software Development & Support, ExxonMobil Technical Computing Company
Simanti Das, is currently the manager of High Performance Computing software development and support group in ExxonMobil Upstream IT organization. She is responsible for providing software development, optimization and support for massively parallel seismic imaging technologies for Upstream business use. Upon receiving her M.S in Computer Science from University of Houston in 1988, Simanti started her career at Exxon Production Research... Read More →
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 →
avatar for Amik St-Cyr

Amik St-Cyr

Senior researcher, Shell
Amik St-Cyr recently joined the Royal Dutch Shell company as a senior researcher in computation & modeling. Amik came to the industry from the NSF funded National Center for Atmospheric Research (NCAR). His work consisted in the discovery of novel numerical methods for geophysical fluid flows with particular attention to their implementation on supercomputers. He has experience in a plethora of numerical methods for solving time-dependent... Read More →


Henri Calandra

Henri Calandra obtained his M.Sc. in mathematics in 1984 and a Ph.D. in mathematics in 1987 from the Universite des Pays de l’Adour in Pau, France. He joined Cray Research France in 1987 and worked on seismic applications. In 1989 he joined the applied mathematics department of the French Atomic Agency. In 1990 he started working for Total SA. After 12 years of work in high performance computing and as project leader for Pre-stack Depth... Read More →
avatar for Issam Said

Issam Said

Computational Scientist, TOTAL/LIP6
My current research interests include high performance computing (HPC), numerical methods and applied geophysics. I specialize in adapting scientific applications to hardware accelerators, mainly Graphics Processing Units (GPUs). It implies improving the performance of numerical solvers, surveying cutting edge hardware/architectures and studying the viability of scientific friendly programming models such as OpenACC. My current work involves... Read More →

Thursday February 28, 2013 1:45pm - 2:10pm
DH 1070 Duncan Hall