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MRHS multigrid solver for Wilson-clover fermions
Daniel Richtmann, Nils Meyer, Tilo Wettig
We describe our implementation of a multigrid solver for Wilson-clover fermions, which increases parallelism by solving for multiple right-hand sides (MRHS) simultaneously. The sol…
Multigrid for Wilson Clover Fermions in Grid
Daniel Richtmann, Peter A. Boyle, Tilo Wettig
With the ever-growing number of computing architectures, performance portability is an important aspect of (Lattice QCD) software. The Grid library provides a good framework for wr…
pMR: A high-performance communication library
Peter Georg, Daniel Richtmann, Tilo Wettig
On many parallel machines, the time LQCD applications spent in communication is a significant contribution to the total wall-clock time, especially in the strong-scaling limit. We…