145 citations · 247 across the 18 of their papers we have counts for
4 papers · 1 filter
Low-Order Refined Preconditioning for Spectral/hp Element Method for Complex, 3D Geometries
Parv Khurana, Henrik Wüstenberg, Spencer J. Sherwin +3
Low-order refined (LOR) preconditioning replaces a high-order operator with a low-order discretisation on a refined nodal mesh. For tensor-product elements, the two operators are s…
NektarIR: A Domain-Specific Compiler for High-Order Finite Element Operations on Heterogeneous Hardware
Edward Erasmie-Jones, Giacomo Castiglioni, David Moxey
Modern high performance computing (HPC) applications must target heterogeneous hardware. This requires significant work to ensure domain specific implementations translate to highl…
Implicit Velocity Correction Schemes for Scale-Resolving Simulations of Incompressible Flow: Stability, Accuracy, and Performance
Henrik Wüstenberg, Alexandra Liosi, Spencer J. Sherwin +2
Scale-resolving simulations of high-Reynolds-number incompressible flow are often limited by the Courant--Friedrichs--Lewy (CFL) restriction of explicit time-stepping schemes, lead…
Architecture-aware -to- optimisation: spectral/ element operators for mixed-element meshes
Jacques Y. Xing, Boyang Xia, Diego Renner +4
We extend earlier international efforts to optimise hexahedral-based spectral element methods on GPUs and vectorised CPUs to mixed element meshes additionally involving prismatic,…