91 citations · 124 across the 6 of their papers we have counts for
7 papers
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…
DD-AMG on QPACE 3
Peter Georg, Daniel Richtmann, Tilo Wettig
We describe our experience porting the Regensburg implementation of the DD-AMG solver from QPACE 2 to QPACE 3. We first review how the code was ported from the first generation…
Scale-invariant biomarker discovery in urine and plasma metabolite fingerprints
Helena U. Zacharias, Thorsten Rehberg, Sebastian Mehrl +6
Motivation: Metabolomics data is typically scaled to a common reference like a constant volume of body fluid, a constant creatinine level, or a constant area under the spectrum. Su…
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…
Direct determinations of the nucleon and pion terms at nearly physical quark masses
Gunnar S. Bali, Sara Collins, Daniel Richtmann +3
We present a high statistics study of the pion and nucleon light and strange quark sigma terms using dynamical non-perturbatively improved clover fermions with a range of p…
Multiple right-hand-side setup for the DD-αAMG
Daniel Richtmann, Simon Heybrock, Tilo Wettig
The setup cost of a modern solver such as DD-αAMG (Wuppertal Multigrid) is a significant contribution to the total time spent on solving the Dirac equation, and in HMC it can even…