Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/6605
Authors: Hérault, A.* 
Bilotta, G.* 
Del Negro, C.* 
Russo, G.* 
Vicari, A.* 
Title: SPH MODELING OF LAVA FLOWS WITH GPU IMPLEMENTATION
Issue Date: 2010
URI: http://hdl.handle.net/2122/6605
Keywords: SPH; complexity; nonlinear systems; CFD
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous 
Abstract: We describe the implementation of the Smoothed Particle Hydrodynamics (SPH) method on graphical processing units (GPU) using the Compute Unified Device Architecture (CUDA) developed by NVIDIA. The entire algorithm is executed on the GPU, fully exploiting its computational power. The code faces all three main components of an SPH simulation: neighbor list constructions, force computation, integration of the equation of motion. The simulation speed achieved is one to two orders of magnitude higher than the equivalent CPU code. Applications are shown for simulating the paths of lava flows during volcano eruptions. Both static problems with purely thermal effects (such as lava lake solidification) and dynamic problems with a complete lava flow were simulated.
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