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Persistent URL http://purl.org/net/epubs/work/53551
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Record Id 53551
Title Exploiting extreme processor counts on Cray XT Systems with high-resolution seismic wave propagation experiments
Abstract 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.
Organisation CSE , CSE-HEC , STFC
Keywords Engineering , Natural environment , parallel computing , seismology , wave propagation, , Cray XT , earthquakes , parallel performance
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Language English (EN)
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Paper In Conference Proceedings In Cray User Group Meeting (CUG 2009), Atlanta, Georgia, USA, 4-7 May 2009, (2009). Ashworth_Chavez_e…ubmitted 01May09.pdf 2009