3 papers
math.NA2025
A scalable high-order multigrid-FFT Poisson solver for unbounded domains on adaptive multiresolution grids
Gilles Poncelet, Jonathan Lambrechts, Thomas Gillis +1
Multigrid solvers are among the most efficient methods for solving the Poisson equation, which is ubiquitous in computational physics. For example, in the context of incompressible…
cs.DC2023★ 7 cited
Quantifying the Performance Benefits of Partitioned Communication in MPI
Thomas Gillis, Ken Raffenetti, Hui Zhou +2
Partitioned communication was introduced in MPI 4.0 as a user-friendly interface to support pipelined communication patterns, particularly common in the context of MPI+threads. It…
physics.comp-ph2020
FLUPS: a Fourier-based Library of Unbounded Poisson Solvers
Denis-Gabriel Caprace, Thomas Gillis, Philippe Chatelain
A Fourier-based Library of Unbounded Poisson Solvers (FLUPS) for 2D and 3D homogeneous distributed grids is presented. It is designed to handle every possible combination of period…