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Exploiting extreme processor counts on Cray XT Systems with high-resolution seismic wave propagation experiments
M Ashworth (STFC Daresbury Lab.)
M Chavez (UNAM)
E Cabrera (UNAM)
We present simulation results from a parallel 3D seismic wave propagation code that uses finite differences on a staggered grid with 2nd order operators in time and 4th order in space. We describe optimisations and developments to the code for the exploitation of extreme processor counts. The ultra-high resolution that we are able to achieve enables simulations with unprecedented accuracy as demonstrated by comparisons with seismographic observations from the Sichuan earthquake in May 2008.
Paper In Conference Proceedings
In Cray User Group Meeting (CUG 2009), Atlanta, Georgia, USA, 4-7 May 2009, (2009).
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