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René Widera
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Radiative signatures of the relativistic Kelvin-Helmholtz instability
M Bussmann, H Burau, TE Cowan, A Debus, A Huebl, G Juckeland, ...
Proceedings of the International Conference on High Performance Computing …, 2013
1232013
Alpaka--an abstraction library for parallel kernel acceleration
E Zenker, B Worpitz, R Widera, A Huebl, G Juckeland, A Knüpfer, ...
2016 IEEE International Parallel and Distributed Processing Symposium …, 2016
922016
Circumventing the dephasing and depletion limits of laser-wakefield acceleration
A Debus, R Pausch, A Huebl, K Steiniger, R Widera, TE Cowan, ...
Physical Review X 9 (3), 031044, 2019
682019
Tuning and optimization for a variety of many-core architectures without changing a single line of implementation code using the Alpaka library
A Matthes, R Widera, E Zenker, B Worpitz, A Huebl, M Bussmann
International Conference on High Performance Computing, 496-514, 2017
432017
In situ, steerable, hardware-independent and data-structure agnostic visualization with ISAAC
A Matthes, A Huebl, R Widera, S Grottel, S Gumhold, M Bussmann
arXiv preprint arXiv:1611.09048, 2016
172016
Performance-portable many-core plasma simulations: Porting picongpu to openpower and beyond
E Zenker, R Widera, A Huebl, G Juckeland, A Knüpfer, WE Nagel, ...
High Performance Computing: ISC High Performance 2016 International …, 2016
172016
On the scalability of data reduction techniques in current and upcoming HPC systems from an application perspective
A Huebl, R Widera, F Schmitt, A Matthes, N Podhorszki, JY Choi, S Klasky, ...
International Conference on High Performance Computing, 15-29, 2017
142017
LLAMA: The low‐level abstraction for memory access
BM Gruber, G Amadio, J Blomer, A Matthes, R Widera, M Bussmann
Software: Practice and Experience 53 (1), 115-141, 2023
122023
Transitioning from file-based HPC workflows to streaming data pipelines with openPMD and ADIOS2
F Poeschel, J E, WF Godoy, N Podhorszki, S Klasky, G Eisenhauer, ...
Smoky Mountains Computational Sciences and Engineering Conference, 99-118, 2021
112021
Spectral control via multi-species effects in PW-class laser-ion acceleration
A Huebl, M Rehwald, L Obst-Huebl, T Ziegler, M Garten, R Widera, K Zeil, ...
Plasma Physics and Controlled Fusion 62 (12), 124003, 2020
112020
Embracing modern software tools and user-friendly practices, when distributing scientific codes
R Lehe, A Huebl, JL Vay, A Friedman, M Thevenet, C Mitchell, ...
Snowmass21 LOI, 2020
112020
Metrics and design of an instruction roofline model for AMD GPUs
M Leinhauser, R Widera, S Bastrakov, A Debus, M Bussmann, ...
ACM Transactions on Parallel Computing 9 (1), 1-14, 2022
102022
A generic approach for developing highly scalable particle-mesh codes for gpus
W Hönig, F Schmitt, R Widera, H Burau, G Juckeland, MS Müller, ...
SAAHPC.–2010, 2010
102010
Phase-based profiling in GPGPU kernels
R Dietrich, F Schmitt, R Widera, M Bussmann
2012 41st International Conference on Parallel Processing Workshops, 414-423, 2012
92012
Evaluating GPU programming models for the LUMI supercomputer
GS Markomanolis, A Alpay, J Young, M Klemm, N Malaya, A Esposito, ...
Asian Conference on Supercomputing Frontiers, 79-101, 2022
82022
Challenges porting a C++ template-metaprogramming abstraction layer to directive-based offloading
J Kelling, S Bastrakov, A Debus, T Kluge, M Leinhauser, R Pausch, ...
International Workshop on Accelerator Programming Using Directives, 92-111, 2021
72021
Computing angularly-resolved far-field emission spectra in particle-in-cell codes using gpus
R Pausch, H Burau, M Bussmann, J Couperus, T Cowan, A Debus, ...
Proceeding 5th International Particle Accelerator Conference (IPAC’14 …, 2014
72014
Quantitatively consistent computation of coherent and incoherent radiation in particle-in-cell codes—A general form factor formalism for macro-particles
R Pausch, A Debus, A Huebl, U Schramm, K Steiniger, R Widera, ...
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …, 2018
62018
Identifying the linear phase of the relativistic Kelvin-Helmholtz instability and measuring its growth rate via radiation
R Pausch, M Bussmann, A Huebl, U Schramm, K Steiniger, R Widera, ...
Physical Review E 96 (1), 013316, 2017
62017
Performance analysis of PIConGPU: particle-in-cell on GPUs using NVIDIA’s NSight systems and NSight compute
M Leinhauser, J Young, S Bastrakov, R Widera, R Chatterjee, ...
Oak Ridge National Lab.(ORNL), Oak Ridge, TN (United States), 2021
42021
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