Publication Date:
2017-04-04
Description:
A smoothed particle hydrodynamics (SPH) method for lava-flow modeling was implemented on a graphical processing unit (GPU) using the compute unified device architecture (CUDA) developed by NVIDIA. This resulted in speed-ups of up to two orders of magnitude. The three-dimensional
model can simulate lava flow on a real topography with free-surface, non-
Newtonian fluids, and with phase change. The entire SPH code has three main components, neighbor list construction, force computation, and integration of the equation of motion, and it is computed on the GPU,
fully exploiting the computational power. The simulation speed achieved is one to two orders of magnitude faster than the equivalent central processing unit (CPU) code. This GPU implementation of SPH allows
high resolution SPH modeling in hours and days, rather than in weeks and months, on inexpensive and readily available hardware.
Description:
Published
Description:
600-620
Description:
3.6. Fisica del vulcanismo
Description:
4.3. TTC - Scenari di pericolosità vulcanica
Description:
JCR Journal
Description:
open
Keywords:
GPGPU, Modeling, HPC, Smoothed particle hydrodynamics, Hazard, Lava
;
04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
;
05. General::05.01. Computational geophysics::05.01.99. General or miscellaneous
;
05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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