Exploiting extreme processor counts on Cray XT Systems with high-resolution seismic wave propagation experiments

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Persistent URL	http://purl.org/net/epubs/work/53551
Record Status	Checked
Record Id	53551
Title	Exploiting extreme processor counts on Cray XT Systems with high-resolution seismic wave propagation experiments
Contributors	M Ashworth (STFC Daresbury Lab.), M Chavez (UNAM), E Cabrera (UNAM)
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)

Type	Details	URI(s)	Local file(s)	Year
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