René Widera

According to our database, René Widera authored at least 34 papers between 2012 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

A Parallel and Highly-Portable HPC Poisson Solver: Preconditioned Bi-CGSTAB with alpaka.

Luca Pennati, Måns I. Andersson, Klaus Steiniger, René Widera, Tapish Narwal, Michael Bussmann, Stefano Markidis

CoRR, March, 2025

The Artificial Scientist - in-transit Machine Learning of Plasma Simulations.

Jeffrey Kelling, Vicente Bolea, Michael Bussmann, Ankush Checkervarty, Alexander Debus, Jan Ebert, Greg Eisenhauer, Vineeth Gutta, Stefan Kesselheim, Scott Klasky, Richard Pausch, Norbert Podhorszki, Franz Pöschel, David Rogers, Jeyhun Rustamov, Steve Schmerler, Ulrich Schramm, Klaus Steiniger, René Widera, Anna Willmann, Sunita Chandrasekaran

CoRR, January, 2025

The Artificial Scientist: in-Transit Machine Learning of Plasma Simulations.

Jeffrey Kelling, Vicente Bolea, Michael Bussmann, Ankush Checkervarty, Alexander Debus, Jan Ebert, Greg Eisenhauer, Vineeth Gutta, Stefan Kesselheim, Scott Klasky, Vedhas Pandit, Richard Pausch, Norbert Podhorszki, Franz Pöschel, David Rogers, Jeyhun Rustamov, Steve Schmerler, Ulrich Schramm, Klaus Steiniger, René Widera, Anna Willmann, Sunita Chandrasekaran

Proceedings of the IEEE International Parallel and Distributed Processing Symposium, 2025

2024

Enabling High- Throughput Parallel I/O in Particle-in-Cell Monte Carlo Simulations with openPMD and Darshan I/O Monitoring.

Jeremy J. Williams, Daniel Medeiros, Stefan Costea, David Tskhakaya, Franz Poeschel, René Widera, Axel Huebl, Scott Klasky, Norbert Podhorszki, Leon Kos, Ales Podolnik, Jakub Hromadka, Tapish Narwal, Klaus Steiniger, Michael Bussmann, Erwin Laure, Stefano Markidis

Proceedings of the IEEE International Conference on Cluster Computing, 2024

2023

EZ: An efficient, charge conserving current deposition algorithm for electromagnetic particle-in-cell simulations.

Klaus Steiniger, René Widera, Sergey I. Bastrakov, Michael Bussmann, Sunita Chandrasekaran, Benjamín Hernández, Kristina Holsapple, Axel Huebl, Guido Juckeland, Jeffrey Kelling, Matt Leinhauser, Richard Pausch, David M. Rogers, Ulrich Schramm, Jeffrey Young, Alexander Debus

Comput. Phys. Commun., October, 2023

LLAMA: The low-level abstraction for memory access.

Bernhard Manfred Gruber, Guilherme Amadio, Jakob Blomer, Alexander Matthes, René Widera, Michael Bussmann

Softw. Pract. Exp., 2023

Hardware-Agnostic Interactive Exascale In Situ Visualization of Particle-In-Cell Simulations.

Felix Meyer, Benjamín Hernández, Richard Pausch, René Widera, David Groß, Sergei I. Bastrakov, Axel Huebl, Guido Juckeland, Jeffrey Kelling, Matt Leinhauser, David M. Rogers, Ulrich Schramm, Klaus Steiniger, Stefan Gumhold, Jeff Young, Michael Bussmann, Sunita Chandrasekaran, Alexander Debus

Proceedings of the Platform for Advanced Scientific Computing Conference, 2023

Application Experiences on a GPU-Accelerated Arm-based HPC Testbed.

Wael R. Elwasif, William F. Godoy, Nick Hagerty, James Austin Harris, Oscar R. Hernandez, Bálint Joó, Paul R. C. Kent, Damien Lebrun-Grandié, Elijah A. MacCarthy, Verónica G. Melesse Vergara, Bronson Messer, Ross Miller, Sarp Oral, Sergei I. Bastrakov, Michael Bussmann, Alexander Debus, Klaus Steiniger, Jan Stephan, René Widera, Spencer H. Bryngelson, Henry Le Berre, Anand Radhakrishnan, Jeffrey Young, Sunita Chandrasekaran, Florina M. Ciorba, Osman Seckin Simsek, Kate Clark, Filippo Spiga, Jeff R. Hammond, John E. Stone, David J. Hardy, Sebastian Keller, Jean-Guillaume Piccinali, Christian Trott

Proceedings of the HPC Asia 2023 Workshops, 2023

2022

cupla - C++ User interface for the Platform Independent Library alpaka.

René Widera, Simeon Ehrig

Dataset, May, 2022

ISAAC - In Situ Animation of Accelerated Computations.

Felix Meyer, René Widera, Richard Pausch, Alexander Matthes, Axel Huebl, Vincent Gerber, Erik Zenker, Sergey Kosukhin, Anton Lebedev

Dataset, May, 2022

EZ publication: source code, profiling, analysis and simulation data.

Klaus Steiniger, René Widera, Jeff Young

Dataset, April, 2022

Metrics and Design of an Instruction Roofline Model for AMD GPUs.

Matthew Leinhauser, René Widera, Sergei I. Bastrakov, Alexander Debus, Michael Bussmann, Sunita Chandrasekaran

ACM Trans. Parallel Comput., 2022

Early Application Experiences on a Modern GPU-Accelerated Arm-based HPC Platform.

Wael R. Elwasif, Sergei I. Bastrakov, Spencer H. Bryngelson, Michael Bussmann, Sunita Chandrasekaran, Florina M. Ciorba, Michael A. Clark, Alexander Debus, William F. Godoy, Nick Hagerty, Jeff R. Hammond, David J. Hardy, James Austin Harris, Oscar R. Hernandez, Bálint Joó, Sebastian Keller, Paul R. C. Kent, Henry Le Berre, Damien Lebrun-Grandié, Elijah A. MacCarthy, Verónica G. Melesse Vergara, Bronson Messer, Ross Miller, Sarp Oral, Jean-Guillaume Piccinali, Anand Radhakrishnan, Osman Seckin Simsek, Filippo Spiga, Klaus Steiniger, Jan Stephan, John E. Stone, Christian Trott, René Widera, Jeffrey Young

CoRR, 2022

Evaluating GPU Programming Models for the LUMI Supercomputer.

George S. Markomanolis, Aksel Alpay, Jeff Young, Michael Klemm, Nicholas Malaya, Aniello Esposito, Jussi Heikonen, Sergey I. Bastrakov, Alexander Debus, Thomas Kluge, Klaus Steiniger, Jan Stephan, René Widera, Michael Bussmann

Proceedings of the Supercomputing Frontiers - 7th Asian Conference, 2022

2021

cupla - C++ User interface for the Platform Independent Library alpaka.

René Widera, Sergei I. Bastrakov, Simeon Ehrig, Jeffrey Kelling, Jan Stephan

Dataset, August, 2021

LWFA PIConGPU setup for minimizing transverse phase space effects paper.

Richard Pausch, Alexander Köhler, Sergei I. Bastrakov, Michael Bussmann, Jurjen Pieter Couperus Cabadag, Arie Irman, Klaus Steiniger, René Widera, Alexander Debus

Dataset, March, 2021

PIConGPU setup: LPWFA downramp injection.

Richard Pausch, Jurjen Pieter Couperus Cabadag, Sergei I. Bastrakov, Michael Bussmann, Arie Irman, Thomas Kurz, Susanne Schöbel, Ulrich Schramm, Klaus Steiniger, Patrick Ufer, René Widera, Alexander Debus

Dataset, March, 2021

ISAAC - In Situ Animation of Accelerated Computations.

Alexander Matthes, Felix Meyer, Richard Pausch, René Widera, Axel Huebl, Vincent Gerber, Erik Zenker, Sergey Kosukhin

Dataset, January, 2021

Challenges Porting a C++ Template-Metaprogramming Abstraction Layer to Directive-Based Offloading.

Jeffrey Kelling, Sergey I. Bastrakov, Alexander Debus, Thomas Kluge, Matt Leinhauser, Richard Pausch, Klaus Steiniger, Jan Stephan, René Widera, Jeff Young, Michael Bussmann, Sunita Chandrasekaran, Guido Juckeland

Proceedings of the Accelerator Programming Using Directives - 8th International Workshop, 2021

Transitioning from File-Based HPC Workflows to Streaming Data Pipelines with openPMD and ADIOS2.

Franz Poeschel, Juncheng E, William F. Godoy, Norbert Podhorszki, Scott Klasky, Greg Eisenhauer, Philip E. Davis, Lipeng Wan, Ana Gainaru, Junmin Gu, Fabian Koller, René Widera, Michael Bussmann, Axel Huebl

Proceedings of the Driving Scientific and Engineering Discoveries Through the Integration of Experiment, Big Data, and Modeling and Simulation, 2021

2020

PIConGPU setup: PWFA simulations.

Richard Pausch, Alexander Debus, Klaus Steiniger, René Widera

Dataset, November, 2020

ISAAC - In Situ Animation of Accelerated Computations.

Felix Meyer, René Widera, Richard Pausch, Alexander Matthes, Axel Huebl, Vincent Gerber, Erik Zenker, Sergey Kosukhin

Dataset, November, 2020

cupla - C++ User interface for the Platform independent Library Alpaka.

René Widera

Dataset, February, 2020

2019

PIConGPU simulation settings for TWEAC.

Alexander Debus, Klaus Steiniger, Richard Pausch, Axel Huebl, René Widera

Dataset, September, 2019

Supplementary Data: Spectral Control via Multi-Species Effects in PW-Class Laser-Ion Acceleration.

Axel Huebl, Martin Rehwald, Lieselotte Obst-Huebl, Tim Ziegler, Marco Garten, René Widera, Karl Zeil, Thomas E. Cowan, Michael Bussmann, Ulrich Schramm, Thomas Kluge

Dataset, March, 2019

cupla - C++ User interface for the Platform independent Library Alpaka.

René Widera

Dataset, January, 2019

2018

cupla - C++ User interface for the Platform independent Library Alpaka.

René Widera

Dataset, June, 2018

2017

Tuning and Optimization for a Variety of Many-Core Architectures Without Changing a Single Line of Implementation Code Using the Alpaka Library.

Alexander Matthes, René Widera, Erik Zenker, Benjamin Worpitz, Axel Huebl, Michael Bussmann

Proceedings of the High Performance Computing, 2017

On the Scalability of Data Reduction Techniques in Current and Upcoming HPC Systems from an Application Perspective.

Axel Huebl, René Widera, Felix Schmitt, Alexander Matthes, Norbert Podhorszki, Jong Youl Choi, Scott Klasky, Michael Bussmann

Proceedings of the High Performance Computing, 2017

2016

In situ, steerable, hardware-independent and data-structure agnostic visualization with ISAAC.

Alexander Matthes, Axel Huebl, René Widera, Sebastian Grottel, Stefan Gumhold, Michael Bussmann

Supercomput. Front. Innov., 2016

Performance-Portable Many-Core Plasma Simulations: Porting PIConGPU to OpenPower and Beyond.

Erik Zenker, René Widera, Axel Huebl, Guido Juckeland, Andreas Knüpfer, Wolfgang E. Nagel, Michael Bussmann

Proceedings of the High Performance Computing, 2016

Alpaka - An Abstraction Library for Parallel Kernel Acceleration.

Erik Zenker, Benjamin Worpitz, René Widera, Axel Huebl, Guido Juckeland, Andreas Knüpfer, Wolfgang E. Nagel, Michael Bussmann

Proceedings of the 2016 IEEE International Parallel and Distributed Processing Symposium Workshops, 2016

2013

Radiative signatures of the relativistic Kelvin-Helmholtz instability.

Michael Bussmann, Heiko Burau, Thomas E. Cowan, Alexander Debus, Axel Huebl, Guido Juckeland, Thomas Kluge, Wolfgang E. Nagel, Richard Pausch, Felix Schmitt, Ulrich Schramm, Joseph Schuchart, René Widera

Proceedings of the International Conference for High Performance Computing, 2013

2012

Phase-Based Profiling in GPGPU Kernels.

Robert Dietrich, Felix Schmitt, René Widera, Michael Bussmann

Proceedings of the 41st International Conference on Parallel Processing Workshops, 2012