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Snowmass 2013 Computing Frontier: Accelerator Science [article]

P. Spentzouris and E. Cormier-Michel and C. Joshi and J. Amundson and W. An and D.L. Bruhwiler and J.R. Cary and B. Cowan and V.K. Decyk and E. Esarey and R.A. Fonseca and A. Friedman and C.G.R. Geddes and D.P. Grote and I. Kourbanis and W.P. Leemans and W. Lu and W.B. Mori and C. Ng and Ji Qiang and T. Roberts and R.D. Ryne and C.B. Schroeder and L.O. Silva and F.S. Tsung and J.-L. Vay and J. Vieira
2013 arXiv   pre-print
It summarizes the computing requirements to support accelerator technology in both Energy and Intensity Frontiers.  ...  This is the working summary of the Accelerator Science working group of the Computing Frontier of the Snowmass meeting 2013.  ...  The requirements for high-fidelity computer simulations of accelerator systems and accelerator components are driven by the need to develop and optimize new accelerator concepts and design machines based  ... 
arXiv:1310.2203v1 fatcat:e7vuzptsp5drbcw62nkjbqgguq

IPDPS 2021 PhD Forum Welcome and Abstracts

2021 2021 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW)  
Description The IEEE Computer Society has created the Technical Consortium on High Performance Computing (TCHPC) to advance and coordinate work in the field of high performance computing networking, storage  ...  The Consortium has launched an Education and Outreach Initiative to coordinate activities, information, and best practices around HPC education/outreach across its member technical committees and the broader  ...  In addition, there is a high correlation of 0.907 and a mean absolute error of 0.005 between the ground truth fidelity of the circuit chosen by our model and the maximum ground truth fidelity of the circuit  ... 
doi:10.1109/ipdpsw52791.2021.00160 fatcat:c5srphikvba6pklpxsyx6lfmhy

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
Computer modeling is essential to research on Advanced Accelerator Concepts (AAC), as well as to their design and operation.  ...  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  ...  High-Performance Computing High-Performance Computing (HPC) continues to be a tightly connected domain for advanced accelerator modeling research.  ... 
arXiv:2109.05133v2 fatcat:tu3lfqarnrecdahcvyhx4ddby4

Faster than Real-Time Simulation: Methods, Tools, and Applications [article]

XiaoRui Liu, Juan Ospina, Ioannis Zografopoulos, Alonzo Russell, Charalambos Konstantinou
2021 arXiv   pre-print
The acceleration of simulation times can be achieved by utilizing digital real-time simulators (RTS) and high-performance computing (HPC) architectures.  ...  Namely, the provided acceleration can be used for improving system scheduling, assessing system vulnerabilities, and predicting system disruptions in real-time systems.  ...  In order to achieve FTRT simulation, both the integration of a digital real-time simulator (RTS) and a high-performance computing (HPC)-based simulator is essential.  ... 
arXiv:2104.04149v1 fatcat:gvfr2j7kqzhevgnvq2poq6ee6e

Exascale applications: skin in the game

Francis Alexander, Ann Almgren, John Bell, Amitava Bhattacharjee, Jacqueline Chen, Phil Colella, David Daniel, Jack DeSlippe, Lori Diachin, Erik Draeger, Anshu Dubey, Thom Dunning (+39 others)
2020 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
These solutions will yield high-confidence insights and answers to the most critical problems and challenges for the USA in scientific discovery, national security, energy assurance, economic competitiveness  ...  This article is part of a discussion meeting issue 'Numerical algorithms for high-performance computational science'.  ...  This group represents the best and brightest leaders and doers the HPC and computational science community has to offer.  ... 
doi:10.1098/rsta.2019.0056 pmid:31955678 fatcat:6gijc65k2fa5lirhdkiudbie5q

Snowmass21 Accelerator Modeling Community White Paper [article]

S. Biedron, L. Brouwer, D.L. Bruhwiler, N. M. Cook, A. L. Edelen, D. Filippetto, C.-K. Huang, A. Huebl, N. Kuklev, R. Lehe, S. Lund, C. Messe (+13 others)
2022 arXiv   pre-print
, and needs for scalable I/O and in-situ analysis.  ...  After a summary of relevant comments and recommendations from various reports over the last ten years, this paper examines the modeling needs in accelerator physics, from the modeling of single beams and  ...  For example, multi-fidelity Bayesian optimization [195] , where evaluations of the optimization objective at a lower fidelity are used as a proxy for high fidelity simulations, is naturally well-suited  ... 
arXiv:2203.08335v2 fatcat:snrivaotkzdvznsjayvenfpg2i

Estimating Silent Data Corruption Rates Using a Two-Level Model [article]

Siva Kumar Sastry Hari, Paolo Rech, Timothy Tsai, Mark Stephenson, Arslan Zulfiqar, Michael Sullivan, Philip Shirvani, Paul Racunas, Joel Emer, Stephen W. Keckler
2020 arXiv   pre-print
High-performance and safety-critical system architects must accurately evaluate the application-level silent data corruption (SDC) rates of processors to soft errors.  ...  Existing approaches that rely on low-level simulations with fault injection cannot evaluate full applications because of their slow speeds, while application-level accelerated fault testing in accelerated  ...  application failure rate evaluation methodology that accounts for both low-level and program-level error propagation.  ... 
arXiv:2005.01445v1 fatcat:f4fd2rmii5bj3lpm5fszqsrg7a

Machine learning for orders of magnitude speedup in multiobjective optimization of particle accelerator systems

Auralee Edelen, Nicole Neveu, Matthias Frey, Yannick Huber, Christopher Mayes, Andreas Adelmann
2020 Physical Review Accelerators and Beams  
High-fidelity physics simulations are powerful tools in the design and optimization of charged particle accelerators.  ...  Our approach enables new ways for high-fidelity particle accelerator simulations to be used, at comparatively little computational cost.  ...  To support this, design and optimization studies for particle accelerator systems often require the use of thousands of cores at high performance computing (HPC) facilities.  ... 
doi:10.1103/physrevaccelbeams.23.044601 fatcat:2eyarxwizfantimz5ewonludm4

DS3: A System-Level Domain-Specific System-on-Chip Simulation Framework [article]

Samet E. Arda, Anish NK, A. Alper Goksoy, Nirmal Kumbhare, Joshua Mack, Anderson L. Sartor, Ali Akoglu, Radu Marculescu, Umit Y. Ogras
2020 arXiv   pre-print
However, this potential is contingent upon optimizing the SoC for the target domain and utilizing its resources effectively at runtime.  ...  DS3 enables both design space exploration and dynamic resource management for power-performance optimization of domain applications.  ...  Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation thereon.  ... 
arXiv:2003.09016v1 fatcat:mnupp3onafd6tcerxukln7hgtm

Customized data-driven RANS closures for bi-fidelity LES–RANS optimization

Yu Zhang, Richard P. Dwight, Martin Schmelzer, Javier F. Gómez, Zhong-hua Han, Stefan Hickel
2021 Journal of Computational Physics  
In this article, we propose an efficient bi-fidelity shape optimization method for turbulent fluid-flow applications with Large-Eddy Simulation (LES) and Reynolds-averaged Navier-Stokes (RANS) as the high-and  ...  This promise is seldom achieved in practice, due to the requirement that low-and high-fidelity models correlate well.  ...  J (ψ) = ρĴ Low + Z (ψ) Similar to the standard single-fidelity Kriging model, the corresponding predictor and mean-squared error (MSE) of Kriging for the high-fidelity cost function arê J (ψ) = ρĴ Low  ... 
doi:10.1016/ fatcat:sfvqegcf7rdnhdi2avuan3guca

The Landscape of Exascale Research

Stijn Heldens, Pieter Hijma, Ben Van Werkhoven, Jason Maassen, Adam S. Z. Belloum, Rob V. Van Nieuwpoort
2020 ACM Computing Surveys  
CCS Concepts: • General and reference → Surveys and overviews; • Computer systems organization; • Hardware; • Software and its engineering;  ...  In this work, we present an overview of these efforts and provide insight into the important trends, developments, and exciting research opportunities in exascale computing.  ...  Di and Cappello [50] characterize the impact of bit-flip errors on execution results for 18 HPC applications.  ... 
doi:10.1145/3372390 fatcat:jhtwt7pxd5c5darhz75hiqgsnq

Correlation-wise Smoothing: Lightweight Knowledge Extraction for HPC Monitoring Data [article]

Alessio Netti, Daniele Tafani, Michael Ott, Martin Schulz
2021 arXiv   pre-print
Modern High-Performance Computing (HPC) and data center operators rely more and more on data analytics techniques to improve the efficiency and reliability of their operations.  ...  We evaluate the CS method on HPC-ODA, a collection of datasets that we release with this work, and show that it leads to the same performance as most state-of-the-art methods while producing signatures  ...  5 uniformly-sized folds are used for training and 1 for testing, evaluating all possible combinations.  ... 
arXiv:2010.06186v2 fatcat:y3yh6d2pibcdxis3ihv4zmm65y

Performance Estimation and Fault Diagnosis Based on Levenberg–Marquardt Algorithm for a Turbofan Engine

2018 Energies  
The accuracy of the proposed method is evaluated for estimating performance parameters in the transient case with Rayleigh process noise and Gaussian measurement noise.  ...  In this paper, a novel method based on a Levenberg-Marquardt (LM) algorithm is proposed to enhance the fidelity of the performance estimation and the credibility of the fault diagnosis for the turbofan  ...  HPC is an abbreviation for high pressure compressor and HPT is an abbreviation for high pressure turbine.  ... 
doi:10.3390/en11010181 fatcat:cpmz4ccugrh6hfltobb2qzt6na

D5.3: Updated Best Practices for HPC Procurement and Infrastructure

Andreas Johansson
2014 Zenodo  
The PRACE-2IP Work Package 5 (WP5), "Best Practices for HPC Systems Commissioning", has two objectives: Procurement independent vendor relations and market watch (Task 1) Best practices for HPC Centre  ...  WP5 provides input for defining and updating procurement plans and strategies through the sharing of the state of the art and best practices in procuring and operating production HPC systems.  ...  hosting HPC facilities and supercomputing infrastructures (the Consorci Centre de Serveis Cientifics i Academics de Catalunya, CESCA in Spain and the group HKNR in LUH).  ... 
doi:10.5281/zenodo.6572433 fatcat:cwiqrgf33jajjjvhubky4f6rau

Report of the HPC Correctness Summit, Jan 25--26, 2017, Washington, DC [article]

Ganesh Gopalakrishnan and Paul D. Hovland and Costin Iancu and Sriram Krishnamoorthy and Ignacio Laguna and Richard A. Lethin and Koushik Sen and Stephen F. Siegel and Armando Solar-Lezama
2017 arXiv   pre-print
Maintaining leadership in HPC requires the ability to support simulations at large scales and fidelity.  ...  We close with the proposal for a two-day workshop in which the problems identified in this report can be more broadly discussed, and specific plans to launch these new research thrusts identified.  ...  Concolic testing [22] has been demonstrated as an effective technique for generating high-coverage test suites and for finding deep errors in complex software applications.  ... 
arXiv:1705.07478v1 fatcat:2rebouk2tvbqhcfthfhz5abd7i
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