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Porting WarpX to GPU-accelerated platforms [article]

A. Myers, A. Almgren, L. D. Amorim, J. Bell, L. Fedeli, L. Ge, K. Gott, D. P. Grote, M. Hogan, A. Huebl, R. Jambunathan, R. Lehe (+11 others)
2021 arXiv   pre-print
WarpX is a general purpose electromagnetic particle-in-cell code that was originally designed to run on many-core CPU architectures.  ...  We describe the strategy followed to allow WarpX to use the GPU-accelerated nodes on OLCF's Summit supercomputer, a strategy we believe will extend to the upcoming machines Frontier and Aurora.  ...  Related works presenting early adoptions of accelerator hardware in PIC codes are presented in Refs. [3, 4, 19, 24] .  ... 
arXiv:2101.12149v2 fatcat:bldjocjryndnrgzovjvnegtbfu

PIConGPU: Predictive Simulations of Laser-Particle Accelerators with Manycore Hardware

Axel Huebl, Michael Dr. Bussmann, Thomas Dr. Kluge, Ulrich Prof. Dr. Schramm, Thomas E. Prof. Dr. Cowan, Paul Prof. Dr. Gibbon, Burkhardt Prof. Dr. Kämpfer, Stefan PD Dr. Grafström
2019 Zenodo  
In this study, 3D modeling with the GPU supercomputer Titan enabled the identification of pre-expansion to near-critical target conditions, which uncovers a regime of volumetric laser-electron interaction  ...  PIConGPU is designed with a modular and extensible implementation, allowing to compute on current and upcoming hardware from a single code base.  ...  While it is usually not worth considering for load-balancing the main computations to this part, fully-GPU accelerated codes such as PIConGPU have a few CPU cores left in the system (currently only one  ... 
doi:10.5281/zenodo.3266819 fatcat:b73a3zvxvjecjplcsks7gf52cu

Enabling particle applications for exascale computing platforms

Susan M Mniszewski, James Belak, Jean-Luc Fattebert, Christian FA Negre, Stuart R Slattery, Adetokunbo A Adedoyin, Robert F Bird, Choongseok Chang, Guangye Chen, Stéphane Ethier, Shane Fogerty, Salman Habib (+12 others)
2021 The international journal of high performance computing applications  
The Exascale Computing Project (ECP) is invested in co-design to assure that key applications are ready for exascale computing.  ...  (PIC) methods, and linear-scaling electronic structure and quantum molecular dynamics (QMD) algorithms.  ...  Acknowledgements This work was performed as part of the Co-design Center for Particle Applications, supported by the Exascale Computing Project This paper describes objective technical results and analysis  ... 
doi:10.1177/10943420211022829 fatcat:7goiighkmjgjnosvzjubskjplq

Applications for ultrascale computing

2015 Supercomputing Frontiers and Innovations  
This article discusses the state-of-the-art of programming for current and future large-scale computing systems with an emphasis on complex applications.  ...  Studies of real complex physical and engineering problems represented by multiscale and multiphysics computer simulations have an increasing demand for computing power.  ...  The runtime system can dynamically map tasks that are ready for execution to the computing resources, thus providing a dynamic load balancing that can adapt to the current execution situation of the hardware  ... 
doi:10.14529/jsfi150102 fatcat:ffmlcygqyfatpamqvlrgjwjvaq

Specification Of Hpc Hardware And Program Components To Enable Further Optimized Mappings

Carlchristian Helmut Johannes Eckert, Wolfgang E Nagel, Jerónimo Castrillón
2016 Zenodo  
Load balancing is one of the key problems in distributed computing.  ...  Through these features, Dodo forms the base for tools that can specialize in the creation of optimized domain decompositions and mappings.  ...  At the same time, their behavior can be highly dynamic, making PIC an ideal test-case for new load balancing tools and metrics.  ... 
doi:10.5281/zenodo.163329 fatcat:mkb4ewc4nvdfrcclwlqzrbg7ry

FlexIO: I/O Middleware for Location-Flexible Scientific Data Analytics

Fang Zheng, Hongbo Zou, Greg Eisenhauer, Karsten Schwan, Matthew Wolf, Jai Dayal, Tuan-Anh Nguyen, Jianting Cao, Hasan Abbasi, Scott Klasky, Norbert Podhorszki, Hongfeng Yu
2013 2013 IEEE 27th International Symposium on Parallel and Distributed Processing  
Since different placements have different impact on performance and cost, there is a consequent need for flexibility in the location of data analytics.  ...  Experimental results demonstrate that FlexIO can support a variety of simulation and analytics workloads at large scale through flexible placement options, efficient data movement, and dynamic deployment  ...  Department of Energy, and Center for Exascale Simulation of Combustion in Turbulence (ExaCT), U.S. Department of Energy.  ... 
doi:10.1109/ipdps.2013.46 dblp:conf/ipps/ZhengZESWDNCAKPY13 fatcat:uogj5f6yvfhbtcmvccrqjybhoe

Conference Digest

2020 2020 IEEE Aerospace Conference  
The Auxiliary Payload Sensor Suite (APSS), a collection of environmental sensors carried by the Interior exploration using Seismic Investigations, Geodesy, and Heat Transport (InSight) lander, is capable  ...  of measuring Martian air temperature, wind speed, atmospheric pressure, and local magnetic fields.  ...  In this talk, we present a refined methodology for assessing the FDIR design of onboard computers in space systems, using a library of FDIR routines.  ... 
doi:10.1109/aero47225.2020.9172613 fatcat:ioqf5ijrx5gvffu3ls34aa2nsq

Defense Advanced Research Projects Agency (Darpa) Fiscal Year 2016 Budget Estimates

Department Of Defense Comptroller's Office
2015 Zenodo  
The Defense Advanced Research Projects Agency (DARPA) FY2016 amounted to $2.868 billion in the President's request to support high-risk, high-reward research.  ...  -Develop cryptographic code obfuscation methods for which the increase in adversary work factor scales exponentially with respect to a polynomial increase in program runtime overhead.  ...  -Determined feasibility to reduce effects of localized dynamic loading in an underbody blast event by 50% over state-of-the-art.  ... 
doi:10.5281/zenodo.1215366 fatcat:cqn5tyfixjanzp5x3tgfkpedri

Ion thrusters for electric propulsion: Scientific issues developing a niche technology into a game changer

K. Holste, P. Dietz, S. Scharmann, K. Keil, T. Henning, D. Zschätzsch, M. Reitemeyer, B. Nauschütt, F. Kiefer, F. Kunze, J. Zorn, C. Heiliger (+14 others)
2020 Review of Scientific Instruments  
In addition, aspects of thruster modeling and requirements for test facilities are discussed.  ...  The transition from old space to new space along with increasing commercialization has a major impact on space flight, in general, and on electric propulsion (EP) by ion thrusters, in particular.  ...  ACKNOWLEDGMENTS This work was supported by the Federal Ministry for Economic Affairs and Energy under Contract Nos. 50RS1502, 50RS1709, 50RK1948, 50RS1707, and 50RM1530 and in the framework of the MINOTOR  ... 
doi:10.1063/5.0010134 pmid:32611046 fatcat:cmqjccw5lnhklar7j4eduxgxwq

2020 Index IEEE Transactions on Electron Devices Vol. 67

2020 IEEE Transactions on Electron Devices  
S., In Situ Observation of b-Ga 2 O 3 Schottky Diode Failure Under Forward Biasing Condition; TED Aug. 2020 3056-3061 Islam Khan, A., see Wang, P., TED Sept. 2020 3598-3604 Ivanov, T.G., see Crawford  ...  Drain-Extended MOSFETs; 4794-4801 Gupta, C., Gupta, A., Tuli, S., Bury, E., Parvais, B., and Dixit, A., Character-ization and Modeling of Hot Carrier Degradation in N-Channel Gate-All-Around Nanowire  ...  ., +, TED April 2020 1407-1419 Computer graphic equipment Multiple-GPU-Based Simulation of Ka-Band Helix Traveling Wave Tube.  ... 
doi:10.1109/ted.2021.3054448 fatcat:r4ertn5jordkfjjvorvss7n6ju

The 2017 Plasma Roadmap: Low temperature plasma science and technology

I Adamovich, S D Baalrud, A Bogaerts, P J Bruggeman, M Cappelli, V Colombo, U Czarnetzki, U Ebert, J G Eden, P Favia, D B Graves, S Hamaguchi (+26 others)
2017 Journal of Physics D: Applied Physics  
A basic mechanism for helium, suitable for ionization balance calculations, is shown in figure 35 .  ...  Coupling of the plasma model to the material property model requires a transfer of information between computer codes, in some cases in both directions; this is complicated by the different meshes and  ... 
doi:10.1088/1361-6463/aa76f5 fatcat:76umn2qaovaxzhiyypql5kxrai

Liprotides: a New Class of Protein Lipid-Complexes

Jannik N. Pedersen, Henriette Kristina S. Frislev, Jan S. Pedersen, Daniel E. Otzen
2016 Biophysical Journal  
These publications cover a wide range of science, such as proteins, polymers, metallurgy, coatings, fibres, liquid crystals, and foodstuffs, and various in situ conditions including temperature, pressure  ...  The second stage of construction for these beamlines will bring further Larmor labelling techniques on Larmor, whilst for Zoom the installation of neutron focusing devices will allow access to smaller  ...  Each 2D detector is controlled by its own server computer that has a direct network link to a common GPU computer for online data processing and saving to the central server.  ... 
doi:10.1016/j.bpj.2015.11.3085 fatcat:eqeeb47atfc4lisnurb25n55gu

Three-dimensional point-cloud room model in room acoustics simulations

Milos Markovic, So/ren K. Olesen, Dorte Hammersho/i
2013 Journal of the Acoustical Society of America  
Fast multipole accelerated indirect boundary elements for the Helmholtz equation. Nail A. Gumerov, Ross Adelman, and Ramani Duraiswami (Inst. for Adv. Comput. Studies, Univ. of Maryland, 115 A.V.  ...  by the fluid on both sides, a result that seems to be particularly relevant in the context of very limited number of experimental images of the radiated field for shells loaded by fluid from both inside  ...  Optimal estimates and marginal posterior probability distributions for source locations are computed employing a variety of sampling approaches.  ... 
doi:10.1121/1.4806371 fatcat:ln4w6j7cjvchrckf2gzfmeiwoi

EuCAPT White Paper: Opportunities and Challenges for Theoretical Astroparticle Physics in the Next Decade [article]

R. Alves Batista, M. A. Amin, G. Barenboim, N. Bartolo, D. Baumann, A. Bauswein, E. Bellini, D. Benisty, G. Bertone, P. Blasi, C.G. Böhmer, Ž. Bošnjak (+125 others)
2021 arXiv   pre-print
This white paper is the result of a collaborative effort that involved hundreds of theoretical astroparticle physicists and cosmologists, under the coordination of the European Consortium for Astroparticle  ...  Astroparticle physics is undergoing a profound transformation, due to a series of extraordinary new results, such as the discovery of high-energy cosmic neutrinos with IceCube, the direct detection of  ...  Acknowledgements This White Paper is the result of a very large group effort.  ... 
arXiv:2110.10074v1 fatcat:arwgafulurg3tbdqmciztq6az4

Abstracts Of The 16 Th International Conference On Electrical Bio-Impedance And 17 Th International Conference On Electrical Impedance Tomography [article]

Stig Ollmar, Farhad Abtahi, Björn-Erik Erlandsson, Birgitta Janerot-Sjöberg, Kaj Lindecrantz, Mannan Mridha, Ingrid Nicander, Fernand Seoane, Heikki Teriö
2016 Zenodo  
16 th International Conference on Electrical Bio-Impedance (ICEBI) 17 th International Conference on Electrical Impedance Tomography (EIT) Stockholm 19–23 June 2016 Book of Abstracts  ...  The design presents a dynamic mesh phantom to assess the performance of the planar topology to simulate in vivo conditions.  ...  Current sources are considered as an essential block in order to deliver controlled current to a wide range of working loads and large bandwidth.  ... 
doi:10.5281/zenodo.55753 fatcat:fh3blon7kfhonbepjfllnwqjbq
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