Department of Computer Systems


VAVERKA Filip, TREEBY Bradley E. and JAROŠ Jiří. Running Large-Scale Ultrasound Simulations on 256 Salomon Nodes. Ostrava, 2017.
Publication language:english
Original title:Running Large-Scale Ultrasound Simulations on 256 Salomon Nodes
Conference:1st Users Conference of IT4Innovations
Place:Ostrava, CZ
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Local domain decomposition, k-Wave toolbox, GPU
Ultrasound simulation is a critical component of model-based treatment planning for ultrasound therapy. However, the domain sizes are typically thousands of wavelengths in size, leading to large-scale numerical models with 10s of billions of unknowns. This paper presents a novel local Fourier basis domain decomposition for full-wave ultrasound propagation simulations with a custom bell function which ensures that the numerical error is below 0.1% while enabling almost ideal strong scaling.

Realistic benchmarks with 6144 Haswell cores across 256 Salomon nodes show significant improvement over native 3D FFT decomposition.

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