Detail publikace

Spectral Domain Decomposition Using Local Fourier Basis: Application to Ultrasound Simulation on a Cluster of GPUs

JAROŠ, J. VAVERKA, F. TREEBY, B.

Originální název

Spectral Domain Decomposition Using Local Fourier Basis: Application to Ultrasound Simulation on a Cluster of GPUs

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

The simulation of ultrasound wave propagation through biological tissue has a wide range of practical applications. However, large grid sizes are generally needed to capture the phenomena of interest. Here, a novel approach to reduce the computational complexity is presented. The model uses an accelerated k-space pseudospectral method which enables more than one hundred GPUs to be exploited to solve problems with more than 3*10^9 grid points. The classic communication bottleneck of Fourier spectral methods, all-to-all global data exchange, is overcome by the application of domain decomposition using local Fourier basis. Compared to global domain decomposition, for a grid size of 1536 x 1024 x 2048, this reduces the simulation time by a factor of 7.5 and the simulation cost by a factor of 3.8.

Klíčová slova

Spectral methods, Local Fourier Basis domain decomposition, Ultrasound simulations, GPUs, HPC, Supercomputing, cancer treatment.

Autoři

JAROŠ, J.; VAVERKA, F.; TREEBY, B.

Vydáno

9. 11. 2016

ISSN

2313-8734

Periodikum

International Journal of Supercomputing Frontiers and Innovations

Ročník

3

Číslo

3

Stát

Ruská federace

Strany od

40

Strany do

55

Strany počet

16

URL

http://superfri.org/superfri/article/download/108/199

BibTex

@article{BUT130966,
  author="Jiří {Jaroš} and Filip {Vaverka} and Bradley {Treeby}",
  title="Spectral Domain Decomposition Using Local Fourier Basis: Application to Ultrasound Simulation on a Cluster of GPUs",
  journal="International Journal of Supercomputing Frontiers and Innovations",
  year="2016",
  volume="3",
  number="3",
  pages="40--55",
  doi="10.14529/jsfi160305",
  issn="2313-8734",
  url="http://superfri.org/superfri/article/download/108/199"
}