activity
20192024
most citedA comparison of element agglomeration algorithms for unstructured geometric multigrid

4 citations · 4 across the 3 of their papers we have counts for

collaborators

5 papers

math.NA2024

Coarsening and parallelism with reduction multigrids for hyperbolic Boltzmann transport

S. Dargaville, R. P. Smedley-Stevenson, P. N. Smith +1

Reduction multigrids have recently shown good performance in hyperbolic problems without the need for Gauss-Seidel smoothers. When applied to the hyperbolic limit of the Boltzmann…

math.NA20204 cited

A comparison of element agglomeration algorithms for unstructured geometric multigrid

S. Dargaville, A. G. Buchan, R. P. Smedley-Stevenson +2

This paper compares the performance of seven different element agglomeration algorithms on unstructured triangular/tetrahedral meshes when used as part of a geometric multigrid. Fi…

math.NA2019

Goal-based angular adaptivity for Boltzmann transport in the presence of ray-effects

S. Dargaville, R. P. Smedley-Stevenson, P. N. Smith +1

Boltzmann transport problems often involve heavy streaming, where particles propagate long distance due to the dominance of advection over particle interaction. If an insufficientl…

physics.comp-ph2019

Angular adaptivity with spherical harmonics for Boltzmann transport

S. Dargaville, A. G. Buchan, R. P. Smedley-Stevenson +2

This paper describes an angular adaptivity algorithm for Boltzmann transport applications which uses Pn and filtered Pn expansions, allowing for different expansion orders across s…

physics.comp-ph2019

Scalable angular adaptivity for Boltzmann transport

S. Dargaville, A. G. Buchan, R. P. Smedley-Stevenson +2

This paper describes an angular adaptivity algorithm for Boltzmann transport applications which for the first time shows evidence of scaling in both runtime and me…