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Parallelization of plasma simulation codes: gridless finite size particle versus particle in cell approach

S. Briguglio, G. Vlad, B. Di Martino, G. Fogaccia
2000 Future generations computer systems  
The main features of gridless finite-size-particle codes are examined and compared with those of particle-in-cell ones, from the point of view of the performances that can be obtained, with respect to  ...  both the spatial-resolution level and the efficiency of parallel particle simulations.  ...  Further problems, however, arise, related to the fact that physical plasmas are characterized by the plasma condition, i.e., by the presence of a large number of particles in a Debye sphere (n 0 λ 3 D  ... 
doi:10.1016/s0167-739x(99)00125-9 fatcat:uiudcoy7yzfnjbtzkhe4bi27oy

Development and performance analysis of a UPC Particle-in-Cell code [article]

Stefano Markidis, Giovanni Lapenta
2011 arXiv   pre-print
The initial simulations of plasmas with the UPC Particle-in-Cell code and a study of parallel speed-up of the UPC code up to 128 cores are shown.  ...  The development and the implementation of a Particle-in-Cell code written in the Unified Parallel C (UPC) language for plasma simulations with application to astrophysics and fusion nuclear energy machines  ...  Acknowledgments This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S.  ... 
arXiv:1108.1954v1 fatcat:2fvilcthhvhqbpwr6p4ukaanny

Kinetic turbulence simulations at extreme scale on leadership-class systems

Bei Wang, Stephane Ethier, William Tang, Timothy Williams, Khaled Z. Ibrahim, Kamesh Madduri, Samuel Williams, Leonid Oliker
2013 Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis on - SC '13  
Our newly optimized, global, ab initio particle-in-cell code solving the nonlinear equations underlying gyrokinetic theory achieves excellent performance with respect to "time to solution" at the full  ...  Reliable predictive simulation capability addressing confinement properties in magnetically confined fusion plasmas is critically-important for ITER, a 20 billion dollar international burning plasma device  ...  Sequoia is dedicated to NNSA's Advanced Simulation and Computing (ASC) program for stewardship of the nation's nuclear weapons stockpile, a joint effort by LLNL, Los Alamos National Laboratory and Sandia  ... 
doi:10.1145/2503210.2503258 dblp:conf/sc/WangETWIMWO13 fatcat:kgb3bzdffvdkhf6rosnqgspasm

Recent results and future challenges for large scale particle-in-cell simulations of plasma-based accelerator concepts

C Huang, W An, V K Decyk, W Lu, W B Mori, F S Tsung, M Tzoufras, S Morshed, T Antonsen, B Feng, T Katsouleas, R A Fonseca (+12 others)
2009 Journal of Physics, Conference Series  
The concept and designs of plasma-based advanced accelerators for high energy physics and photon science are modelled in the SciDAC COMPASS project with a suite of Particle-In-Cell codes and simulation  ...  In this paper, we report the progress of the development of these models and techniques and present recent results achieved with large-scale parallel PIC simulations.  ...  Simulations are conducted at the NERSC platforms, the UCLA Dawson cluster, the LBNL Linux cluster, the LLNL ATLAS facility and the Argonne ALCF facility.  ... 
doi:10.1088/1742-6596/180/1/012005 fatcat:jtqaxja3yjafnoefa6esbwxzgm

Electric Propulsion Plume Simulations Using Parallel Computer

Joseph Wang, Yong Cao, Raed Kafafy, Viktor Decyk
2007 Scientific Programming  
A parallel, three-dimensional electrostatic PIC code is developed for large-scale electric propulsion simulations using parallel supercomputers.  ...  This code uses a newly developed immersed-finite-element particle-in-cell (IFE-PIC) algorithm designed to handle complex boundary conditions accurately while maintaining the computational speed of the  ...  Access to the Dell Xeon parallel cluster is provided by the JPL Supercomputing Project.  ... 
doi:10.1155/2007/272431 fatcat:3i2yttjaqzg7xegcgbnsgsvvaq

Modeling of Advanced Accelerator Concepts [article]

J.-L. Vay, A. Huebl, R. Lehe, N. M. Cook, R. J. England, U. Niedermayer, P. Piot, F. Tsung, D. Winklehner
2021 arXiv   pre-print
algorithms, scalable I/Os and In-Situ analysis), (ii) the benefits of ecosystems with integrated workflows based on standardized input and output and with integrated frameworks developed as a community  ...  This paper summarizes the current status and future needs of AAC systems and reports on several key aspects of (i) high-performance computing (including performance, portability, scalability, advanced  ...  amenable to particle-in-cell (PIC) simulation to of order a few centimeters.  ... 
arXiv:2109.05133v2 fatcat:tu3lfqarnrecdahcvyhx4ddby4

Gridless finite-size-particle plasma simulation

G. Vlad, S. Briguglio, G. Fogaccia, B.Di Martino
2001 Computer Physics Communications  
efficiency of parallel particle simulations.  ...  It is shown that such codes are particularly suited for particle-decomposition parallelization on distributed-memory architectures, as they present a strong reduction, in comparison with particle-in-cell  ...  Parallelization of particle simulation codes The need for high resolution and, consequently, for large number of particles has motivated a large effort, in the last years, in porting particle codes on  ... 
doi:10.1016/s0010-4655(00)00191-0 fatcat:44wyy77t3ndxhjoo75wdzk3i5m

Performance Portability of HPC Discovery Science Software: Fusion Energy Turbulence Simulations at Extreme Scale

2017 Supercomputing Frontiers and Innovations  
of performance scaling and code portability for path-to-exascale platforms.  ...  The emergence of new insights on confinement scaling in MFE systems has been aided significantly by efficient software capable of harnessing powerful supercomputers to carry out simulations with unprecedented  ...  This paper is distributed under the terms of the Creative Commons Attribution-Non Commercial 3.0 License which permits non-commercial use, reproduction and distribution of the work without further permission  ... 
doi:10.14529/jsfi170105 fatcat:geqrfzmrrze27plhvp54fzqbka

Ultrahigh-order Maxwell solver with extreme scalability for electromagnetic PIC simulations of plasmas

Henri Vincenti, Jean-Luc Vay
2018 Computer Physics Communications  
with electromagnetic Particle-In-Cell methods.  ...  Indeed, FFT-based methods, which were very popular on shared memory computers, have been largely replaced by finite-difference (FD) methods for the solution of many problems, including plasmas simulations  ...  A. Leblanc who provided us with the experimental results performed on the UHI100 laser at CEA Saclay.  ... 
doi:10.1016/j.cpc.2018.03.018 fatcat:7paa4v4sdjdczpngs2wti6bmni

High Performance Computing in Biomedical Applications

S. Bastrakov, I. Meyerov, V. Gergel, A. Gonoskov, A. Gorshkov, E. Efimenko, M. Ivanchenko, M. Kirillin, A. Malova, G. Osipov, V. Petrov, I. Surmin (+1 others)
2013 Procedia Computer Science  
The software system is aimed at large-scale simulation on cluster systems with high efficiency and scalability.  ...  This paper presents the results of the development of a biomedical software system at the Nizhni Novgorod State University High Performance Computing Competence Center.  ...  Acknowledgements The work has been supported by the following grants: Scientific School #1960.2012.9, 14.B37. 21  ... 
doi:10.1016/j.procs.2013.05.164 fatcat:6hzmpjn35zfihapdwr4l3qyita

A case study in top-down performance estimation for a large-scale parallel application

Ilya Sharapov, Robert Kroeger, Guy Delamarter, Razvan Cheveresan, Matthew Ramsay
2006 Proceedings of the eleventh ACM SIGPLAN symposium on Principles and practice of parallel programming - PPoPP '06  
Further, it demonstrates the methodology by estimating the performance of a significant scientific application -the Gyrokinetic Toroidal Code (GTC) -when executing on Sun's proposed next-generation petascale  ...  This work presents a general methodology for estimating the performance of an HPC workload when running on a future hardware architecture.  ...  Acknowledgments The authors would like to thank the members of the Sun HPCS Performance team including Russ Brown, Lodewijk Bonebakker, Larry Brisson, John Busch, Chris Feucht, John Fredricksen, Ilya Gluhovsky  ... 
doi:10.1145/1122971.1122985 dblp:conf/ppopp/SharapovKDCR06 fatcat:2vuaiivpendazfoo5tymauu2ay

Parallel PIC plasma simulation through particle decomposition techniques

B. Di Martino, S. Briguglio, G. Vlad, P. Sguazzero
2001 Parallel Computing  
Parallelization of a particle-in-cell (PIC) code has been accomplished through a"particle decomposition" technique instead of the more usual"domain decomposition" one.  ...  The adopted technique requires a moderate eort in porting the code in parallel form and results in intrinsic load balancing and modest inter-processor communication.  ...  Such a requirement, together with the above condition of large number of simulation particles per cell, brings to face simulations characterized by millions particles, beyond the limits of the computational  ... 
doi:10.1016/s0167-8191(00)00098-3 fatcat:qym4hdq5c5drxdwdl5bikgyftq

Load management strategy for Particle-In-Cell simulations in high energy particle acceleration

A. Beck, J.T. Frederiksen, J. Dérouillat
2016 Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment  
The main limitation we identify in state-of-the-art Particle-In-Cell (PIC) codes is computational load imbalance.  ...  These simulations bring, of course, important insight into the fundamental physics at play. As a by-product, they also characterize the quality of our theoretical and numerical models.  ...  SMILEI simulations were performed using DARI allocation c2015067484 on the OCCIGEN system, based in France at CINES.  ... 
doi:10.1016/j.nima.2016.03.112 fatcat:7wfhewyw2rbaxkeebk7zuuroui

Modern gyrokinetic particle-in-cell simulation of fusion plasmas on top supercomputers

Bei Wang, Stephane Ethier, William Tang, Khaled Z Ibrahim, Kamesh Madduri, Samuel Williams, Leonid Oliker
2017 The international journal of high performance computing applications  
In this paper, we describe our approach to developing such a highly parallel PIC code that has the unique capability of efficiently simulating large size plasmas on both homogeneous and heterogeneous systems  ...  Unfortunately, the O(N 2 ) complexity makes a particle method impractical for plasma simulations using millions of particles per process.  ...  Tang (in part) were supported by DOE contract DE-AC02-09CH11466 at the Princeton Plasma Physics Laboratory (PPPL).  ... 
doi:10.1177/1094342017712059 fatcat:76inm7ykqfbu7jdi2egzjtdjnm

Advanced simulation of electron heat transport in fusion plasmas

Z Lin, Y Xiao, I Holod, W Zhang, W Deng, S Klasky, J Lofstead, C Kamath, N Wichmann
2009 Journal of Physics, Conference Series  
First-principles simulations of electron turbulence are much more challenging due to the multi-scale dynamics of the electron turbulence, and have been made possible by close collaborations between plasma  ...  In contrast, a kinetic process dominates the transport in the ETG turbulence, which is characterized by macroscopic streamers.  ...  Simulations used supercomputers at ORNL and NERSC.  ... 
doi:10.1088/1742-6596/180/1/012059 fatcat:ltz2wxqn4ncihchjq5324mq26u
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