Scalability of the CTH Shock Physics Code on the Cray XT

Report No. ARL-RP-281
Authors: Stephen J. Schraml and Thomas M. Kendall
Date/Pages: November 2009; 14 pages
Abstract: This report presents an overview of an explicit message-passing paradigm for a Eulerian finite-volume method for modeling solid dynamics problems involving shock wave propagation, multiple materials, and large deformations. Three-dimensional simulations of high-velocity impact were conducted on two scalable, high-performance computing systems to evaluate the performance of the message-passing code. Simulations were performed using >3 billion computational cells running on more than 8000 processor cores. The performance of the message-passing code was found to scale linearly on the two computer systems evaluated across the range of cases considered.
Distribution: Approved for public release
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Last Update / Reviewed: November 1, 2009