13 citations · 31 across the 7 of their papers we have counts for
8 papers
Differentiated uniformization: A new method for inferring Markov chains on combinatorial state spaces including stochastic epidemic models
Kevin Rupp, Rudolf Schill, Jonas Süskind +6
Motivation: We consider continuous-time Markov chains that describe the stochastic evolution of a dynamical system by a transition-rate matrix which depends on a parameter .…
Grid on QPACE 4
Peter Georg, Nils Meyer, Stefan Solbrig +1
In 2020 we deployed QPACE 4, which features 64 Fujitsu A64FX model FX700 processors interconnected by InfiniBand EDR. QPACE 4 runs an open-source software stack. For Lattice QCD si…
Low-rank tensor methods for Markov chains with applications to tumor progression models
Peter Georg, Lars Grasedyck, Maren Klever +3
Continuous-time Markov chains describing interacting processes exhibit a state space that grows exponentially in the number of processes. This state-space explosion renders the com…
SVE-enabling Lattice QCD Codes
Nils Meyer, Peter Georg, Dirk Pleiter +2
Optimization of applications for supercomputers of the highest performance class requires parallelization at multiple levels using different techniques. In this contribution we foc…
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…
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…
Adaptive algebraic multigrid on SIMD architectures
Simon Heybrock, Matthias Rottmann, Peter Georg +1
We present details of our implementation of the Wuppertal adaptive algebraic multigrid code DD-AMG on SIMD architectures, with particular emphasis on the Intel Xeon Phi processo…
QPACE 2 and Domain Decomposition on the Intel Xeon Phi
Paul Arts, Jacques Bloch, Peter Georg +15
We give an overview of QPACE 2, which is a custom-designed supercomputer based on Intel Xeon Phi processors, developed in a collaboration of Regensburg University and Eurotech. We…