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The omission of nonlinear effects in large-scale 3D ground motion estimation, which are particularly challenging due to memory and scalability issues, can result in costly misguidance for structural design in earthquake-prone regions. We have implemented nonlinearity using a Drucker-Prager yield condition in AWP-ODC and further optimized the CUDA kernels to more efficiently utilize the GPU's memory...
PATUS is a code generation and auto-tuning framework for stencil computations targeting modern multi and many-core processors. The goals of the framework are productivity and portability for achieving high performance on the target platform. Its stencil specification language allows the programmer to express the computation in a concise way independently of hardware architecture-specific details....
In this paper we report on high performance data transfer and ingestion design carried out in a scientific workflow project to support Southern California Earthquake Center (SCEC) petascale simulations on TeraGrid (TG), which is conducive to utilize the grid resource to pipeline data pre- and post-processing in this workflow simulation. We develop an enhanced prototype framework that brings together...
This study focuses on the visualization of a series of large earthquake simulations collectively called TeraShake. The simulation series aims to assess the impact of San Andreas Fault earthquake scenarios in Southern California. We discuss the role of visualization in gaining scientific insight and aiding unexpected discoveries.
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