Výsledky vyhledávání - "Nelson, Rhodri"

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Automated MPI-X code generation for scalable finite-difference solvers

Autor: Bisbas, George, Nelson, Rhodri, Louboutin, Mathias, Luporini, Fabio, Kelly, Paul H. J., Gorman, Gerard

Partial differential equations (PDEs) are crucial in modeling diverse phenomena across scientific disciplines, including seismic and medical imaging, computational fluid dynamics, image processing, and neural networks. Solving these PDEs at scale is

Externí odkaz: http://arxiv.org/abs/2312.13094

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A Novel Immersed Boundary Approach for Irregular Topography with Acoustic Wave Equations

Autor: Caunt, Edward, Nelson, Rhodri, Luporini, Fabio, Gorman, Gerard

Irregular terrain has a pronounced effect on the propagation of seismic and acoustic wavefields but is not straightforwardly reconciled with structured finite-difference (FD) methods used to model such phenomena. Methods currently detailed in the lit

Externí odkaz: http://arxiv.org/abs/2309.03600

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Temporal blocking of finite-difference stencil operators with sparse 'off-the-grid' sources

Autor: Bisbas, George, Luporini, Fabio, Louboutin, Mathias, Nelson, Rhodri, Gorman, Gerard, Kelly, Paul H. J.

Stencil kernels dominate a range of scientific applications, including seismic and medical imaging, image processing, and neural networks. Temporal blocking is a performance optimization that aims to reduce the required memory bandwidth of stencil co

Externí odkaz: http://arxiv.org/abs/2010.10248

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Scaling through abstractions -- high-performance vectorial wave simulations for seismic inversion with Devito

Autor: Louboutin, Mathias, Luporini, Fabio, Witte, Philipp, Nelson, Rhodri, Bisbas, George, Thorbecke, Jan, Herrmann, Felix J., Gorman, Gerard

[Devito] is an open-source Python project based on domain-specific language and compiler technology. Driven by the requirements of rapid HPC applications development in exploration seismology, the language and compiler have evolved significantly sinc

Externí odkaz: http://arxiv.org/abs/2004.10519

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Linear feedback stabilization of point vortex equilibria near a Kasper Wing

Autor: Nelson, Rhodri, Protas, Bartosz, Sakajo, Takashi

Publikováno v: Journal of Fluid Mechanics 827, 121-154, 2017

This paper concerns feedback stabilization of point vortex equilibria above an inclined thin plate and a three-plate configuration known as the Kasper Wing in the presence of an oncoming uniform flow. The flow is assumed to be potential and is modele

Externí odkaz: http://arxiv.org/abs/1703.07720

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