3 papers
math.NA2026
Coarse Solvers for Exascale Solution of Poisson Problems
Thilina Ratnayaka, Paul Fischer, Luke Olson
We present a two-level Schwarz method as an alternative to Algebraic Multigrid method(AMG) used as the last level (coarse) solver of the p-multigrid pMG preconditioner for pressure…
cs.DC2026
parRSB: Exascale Spectral Element Mesh Partitioning
Thilina Ratnayaka, Paul Fischer
We introduce parRSB - a parallel, highly scalable graph partitioner for spectral element meshes that produce high quality partitions. parRSB is based on Recursive Spectral Bisectio…
cs.PL2026
nomp: A Framework for Building Domain Specific Compilers
Thilina Ratnayaka, Kaushik Kulkarni, Nipuna Fernando +8
The low-level GPU programming models (CUDA, HIP, OpenCL, etc.) provide detailed control of the data flow and execution plan of a program in order to extract close-to-metal performa…