What is it about?
DynEarthSol3D (http://bitbucket.org/tan2/dynearthsol3d/) is an open-source code for geodynamic simulation. To make this code applicable to challenging problems in geodynamics, we explore strategies for boosting the code's performance using GPUs. Our work shows that the new type of processor from AMD, which has CPU and GPU on the same chip, can effectively solves the problem of slow memory transfer between CPU and GPU. Also, we show that the optimization strategies we adopted for DynEarthSol3D effectively boost performance on the AMD's tightly coupled CPU-GPU processor.
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Why is it important?
Geodynamic simulations typically involves small-scale features like fault zones in a large-size domain spanning 1000s km. As a result, a very high-resolution model is often desired but such a model takes a long time to run. To get results within a reasonable amount of time and with a reasonable amount of resources (e.g. # of cores, power bills, etc), it is important to take advantage of modern co-processor technologies like general purpose GPU computing. Our study shows one way of tapping the power of the newest co-processor design and its efficiency.
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This page is a summary of: Accelerating DynEarthSol3D on tightly coupled CPU–GPU heterogeneous processors, Computers & Geosciences, June 2015, Elsevier,
DOI: 10.1016/j.cageo.2015.03.003.
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