P40: Running Large-Scale Ultrasound Simulations on Piz
Daint with 512 Pascal GPUs
SessionPoster Reception
Authors
Event Type
ACM Student Research Competition
Poster
Reception
TimeTuesday, November 14th5:15pm -
7pm
LocationFour Seasons Ballroom
DescriptionUltrasound simulation is a critical component of
model-based treatment planning for ultrasound therapy.
However, the domains 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 stays below 0.1% while enabling
almost ideal strong scaling. Realistic benchmarks with
512 Nvidia P100 GPUs in the best EU supercomputer Piz
Daint achieved efficiency between 90 and 100% with a
speed-up over 100 and computational cost reduction by a
factor of 12 compared to 1024 Haswell cores.
