کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6961649 1452118 2016 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulation of tsunamis generated by landslides on multiple GPUs
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزار
پیش نمایش صفحه اول مقاله
Numerical simulation of tsunamis generated by landslides on multiple GPUs
چکیده انگلیسی
In this work we propose a two-layer Savage-Hutter type model that is the natural extension of the 1D system proposed by E. D. Fernández-Nieto et al in 2008 to simulate tsunamis generated by landslides. We describe a single GPU and a multi-GPU implementation of this model using MPI and the CUDA framework over structured meshes. The distributed implementation is tested for several artificial and realistic problems using up to 24 GPUs. We also propose a static and a dynamic load balancing algorithm in order to deal with the unbalanced computational load due to different amount of wet and dry areas among the subdomains. The validity of the model is tested by simulating the tsunami occurred in Lituya Bay, Alaska, in 1958. Numerical experiments show the efficiency of the multi-GPU solver, the usefulness of the load balancing algorithms and the validity of the model to simulate real tsunamis generated by landslides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Engineering Software - Volume 99, September 2016, Pages 59-72
نویسندگان
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