activity
20192026
most citedHigh Performance Solution of Skew-symmetric Eigenvalue Problems with Applications in Solving the Bethe-Salpeter Eigenvalue Problem

14 citations · 30 across the 9 of their papers we have counts for

collaborators

10 papers

math.NA2026

A GPU-Accelerated Blocked Adaptive Randomized Range Finder Based on an Implicit Householder QR Decomposition

Carolin Penke, Andreas Herten

Low-rank methods can reduce the memory and computational requirements of deep neural network training in approaches such as GaLore. Randomized range finders offer an attractive alt…

cs.DC2025

Training LLMs on HPC Systems: Best Practices from the OpenGPT-X Project

Carolin Penke, Chelsea Maria John, Jan Ebert +2

The training of large language models (LLMs) requires substantial computational resources, complex software stacks, and carefully designed workflows to achieve scalability and effi…

cs.AR2024★ 4 cited

Performance and Power: Systematic Evaluation of AI Workloads on Accelerators with CARAML

Chelsea Maria John, Stepan Nassyr, Carolin Penke +1

The rapid advancement of machine learning (ML) technologies has driven the development of specialized hardware accelerators designed to facilitate more efficient model training. Th…

cs.CL2024★ 2 cited

Teuken-7B-Base & Teuken-7B-Instruct: Towards European LLMs

Mehdi Ali, Michael Fromm, Klaudia Thellmann +38

We present two multilingual LLMs, Teuken 7B-base and Teuken 7B-instruct, designed to embrace Europe's linguistic diversity by supporting all 24 official languages of the European U…

cs.DC2024★ 10 cited

Application-Driven Exascale: The JUPITER Benchmark Suite

Andreas Herten, Sebastian Achilles, Damian Alvarez +28

Benchmarks are essential in the design of modern HPC installations, as they define key aspects of system components. Beyond synthetic workloads, it is crucial to include real appli…

math.NA2022

A Structure-Preserving Divide-and-Conquer Method for Pseudosymmetric Matrices

Peter Benner, Yuji Nakatsukasa, Carolin Penke

We devise a spectral divide-and-conquer scheme for matrices that are self-adjoint with respect to a given indefinite scalar product (i.e. pseudosymmetic matrices). The pseudosymmet…

math.NA2021

Stable and Efficient Computation of Generalized Polar Decompositions

Peter Benner, Yuji Nakatsukasa, Carolin Penke

We present methods for computing the generalized polar decomposition of a matrix based on the dynamically weighted Halley (DWH) iteration. This method is well established for compu…

math.NA2020

Efficient and Accurate Algorithms for Solving the Bethe-Salpeter Eigenvalue Problem for Crystalline Systems

Peter Benner, Carolin Penke

Optical properties of materials related to light absorption and scattering are explained by the excitation of electrons. The Bethe-Salpeter equation is the state-of-the-art approac…

math.NA2020

GR decompositions and their relations to Cholesky-like factorizations

Peter Benner, Carolin Penke

For a given matrix, we are interested in computing GR decompositions , where is an isometry with respect to given scalar products. The orthogonal QR decomposition is the…

math.NA2019★ 14 cited

High Performance Solution of Skew-symmetric Eigenvalue Problems with Applications in Solving the Bethe-Salpeter Eigenvalue Problem

Carolin Penke, Andreas Marek, Christian Vorwerk +2

We present a high-performance solver for dense skew-symmetric matrix eigenvalue problems. Our work is motivated by applications in computational quantum physics, where one solution…