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Data handling with SAM andartat the NOνA experiment

A Aurisano, C Backhouse, G S Davies, R Illingworth, N Mayer, M Mengel, A Norman, D Rocco, J Zirnstein
2015 Journal of Physics, Conference Series  
To accommodate the large volume of data and Monte Carlo, production must be possible both on the Fermilab grid and on off-site farms, such as the ones accessible through the Open Science Grid.  ...  In this paper we will present an overview of SAM at NOνA and how it has transformed the file production framework used by the experiment.  ...  Acknowledgements The author acknowledges support for this research was carried out by the Fermilab scientific and technical staff.  ... 
doi:10.1088/1742-6596/664/4/042001 fatcat:cyqesxmhinhjtloejde2hb4ljy

Risk Identification Method for Cloud Computing Safety based on LSA-GCC and LSA-SAM

Fan Lin, Wenhua Zeng, Yue Wang
2016 International Journal of Grid and Distributed Computing  
(LSA-GCC) is adopted and the MapReduce-based LSA-GCC and LSA-SAM parallel acceleration experiment is conducted.  ...  Finally, a mean value is calculated to obtain the risk value of the data to be evaluated, namely, the risk value of the occasion when the data is obtained.  ...  Acknowledgements The paper is supported by Nature Science Foundation of China (No. 61402386, No.61402389 and No. 61305061)  ... 
doi:10.14257/ijgdc.2016.9.2.20 fatcat:e6x5a2yxh5hvfjrokyzsze5zja

A glove for tapping and discrete 1D/2D input

Sam Miller, Andy Smith, Sina Bahram, Robert St. Amant
2012 Proceedings of the 2012 ACM international conference on Intelligent User Interfaces - IUI '12  
This paper describes a glove with which users enter input by tapping fingertips with the thumb or by rubbing the thumb over the palmar surfaces of the middle and index fingers.  ...  The glove has been informally tested as the controller for two semi-autonomous robots in a a 3D simulation environment. A preliminary evaluation of the glove's performance is presented.  ...  the use of the glove.  ... 
doi:10.1145/2166966.2166986 dblp:conf/iui/MillerSBA12 fatcat:7wjkybdldvblnjalncsyrgk7ou

Sparse MIMO architectures for through-the-wall imaging

Li Li, Petros T. Boufounos, Dehong Liu, Hassan Mansour, Zafer Sahinoglu
2014 2014 IEEE 8th Sensor Array and Multichannel Signal Processing Workshop (SAM)  
Our simulation results demonstrate the effectiveness of our approach and validate the performance of the system for the three different MIMO sparse array structures.  ...  Our simulation results demonstrate the effectiveness of our approach and validate the performance of the system for the three different MIMO sparse array structures.  ...  data.  ... 
doi:10.1109/sam.2014.6882455 dblp:conf/ieeesam/LiBLMS14 fatcat:2vxvqfj5ifeynimlzdzzy5phvm

Data preservation at the Fermilab Tevatron

S. Amerio, S. Behari, J. Boyd, M. Brochmann, R. Culbertson, M. Diesburg, J. Freeman, L. Garren, H. Greenlee, K. Herner, R. Illingworth, B. Jayatilaka (+9 others)
2017 Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment  
The CDF and D0 experiments each have approximately 9 PB of collider and simulated data stored on tape.  ...  A large computing infrastructure consisting of tape storage, disk cache, and distributed grid computing for physics analysis with the Tevatron data is present at Fermilab.  ...  Acknowledgments The authors thank the computing and software teams of both CDF and D0 as well as the staff of the Fermilab Computing Sector that made this project possible.  ... 
doi:10.1016/j.nima.2017.01.043 fatcat:j4ruddamy5cm7m7ygfuze46qye

Management of Grid Jobs and Information within SAMGrid [article]

A. Baranovski, G. Garzoglio, A. Kreymer, L. Lueking, S. Stonjek, I. Terekhov, F. Wuerthwein, A. Roy, P. Mhashikar, V. Murthi, T. Tannenbaum, R. Walker (+2 others)
2003 arXiv   pre-print
We describe some of the key aspects of the SAMGrid system, used by the D0 and CDF experiments at Fermilab.  ...  Having sustained success of the data handling part of SAMGrid, we have developed new services for job and information services.  ...  For HEP experiments such as D0 and CDF, data handling is the center of the metacomputing grid system [4] .  ... 
arXiv:cs/0307007v2 fatcat:zymcwm4az5frlmmddka5dgidam

Performance of an Operating High Energy Physics Data Grid: DØSAR-Grid

B. Abbott, P. Baringer, T. Bolton, Z. Greenwood, E. Gregores, H. Kim, C. Leangsuksun, D. Meyer, N. Mondal, S. Novaes, B. Quinn, H. Severini (+4 others)
2005 International Journal of Modern Physics A  
The D0 experiment at Fermilab's Tevatron will record several petabytes of data over the next five years in pursuing the goals of understanding nature and searching for the origin of mass.  ...  and data analyses for a currently running HEP experiment.  ...  The DØSAR Grid will be exploited in critical physics analyses of real and simulated data from theexperiment, and later from LHC and other future experiments.  ... 
doi:10.1142/s0217751x05027850 fatcat:d6onzjhirbba7idp255fheheqy

A data handling system for modern and future Fermilab experiments

R A Illingworth
2014 Journal of Physics, Conference Series  
data preservation efforts of the Run II experiments.  ...  Current and future Fermilab experiments such as Minerνa, NOνA, and MicroBoone are now using an improved version of the Fermilab SAM data handling system.  ...  Acknowledgments The Fermi National Accelerator Laboratory is operated by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359 with the United States Department of Energy.  ... 
doi:10.1088/1742-6596/513/3/032045 fatcat:sd45vlsrkralznvin6vvzootaa

Distributed computing concepts in DØ

Daniel Wicke
2004 European Physical Journal C: Particles and Fields  
The D0 experiment faces many challenges enabling access to large datasets for physicists on four continents.  ...  The real live test of these concepts is of special interest for the LHC Computing GRID, LCG, which follows a similar strategy.  ...  Fig. 3 . 3 Components diagram of the SAM Grid project.  ... 
doi:10.1140/epjcd/s2004-03-1797-6 fatcat:ki5wv6j6mvep7dcx5njptxj6xa

Grid Based Monitoring on the Rutgers CDF Analysis Farm [article]

P. Jacques, F. Ratnikov, I. Terekhov, T. Watts
2003 arXiv   pre-print
Some job submission, detector data access and storage of the output results are based on the SAM-GRID tools.  ...  Finally we summarize our experience of installing and operating a GRID environment on a remote cluster that is being used for real physics studies in the big running experiment.  ...  , TUAT004 [9] L.Lueking, Production Experience with the D0 Data Handling System, MOKT002 [10] S.Stonjek, The SAMGrid Testbed: First D0 and CDF Experiences with Analysis on the Grid, CHEP03, MOCT009 [11  ... 
arXiv:physics/0306122v1 fatcat:2tduvtn7o5g7tpvb7euq2g7f3m

Analyzing how we do Analysis and Consume Data, Results from the SciDAC-Data Project

P. Ding, L. Aliaga, M. Mubarak, A. Tsaris, A. Norman, A. Lyon, R. Ross
2017 Journal of Physics, Conference Series  
We present the first results of this project, which examine in detail how the CDF, D0, NOvA, MINERvA and MicroBooNE experiments have organized, classified and consumed petascale datasets to produce their  ...  analysis of the Tevatron Run II experiments.  ...  De-AC02-07CH11359 with the United States Department of Energy. Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The U.S.  ... 
doi:10.1088/1742-6596/898/9/092048 fatcat:scrywkvkf5fgxorxbaz2yvnumi

Crunching real data on the Grid: practice and experience with the European DataGrid

D. Groep, J. Templon, C. Loomis
2006 Concurrency and Computation  
The D0 experiment has used the European DataGrid (EDG) testbed to reprocess real data obtained from the Tevatron collider at the Fermi National Accelerator Laboratory.  ...  This paper describes the D0 experience with the EDG software and the resulting recommendations.  ...  ACKNOWLEDGEMENTS This article is dedicated to the Integration Team Mailing List, a forum of hard-working DataGrid project participants where most of these problems were identified, discussed, and solved  ... 
doi:10.1002/cpe.962 fatcat:diisgypqxffgrnyyog7eybdawu

A fully non-linear model for atomization of high-speed jets

Sam S. Yoon, Stephen D. Heister
2004 Engineering analysis with boundary elements  
Computed droplet sizes are in reasonable agreement with experimental data, although turbulence effects obscure some comparisons. q  ...  Scientific Res. 8 (1959) 425], the size of the droplets is estimated based on the size of the ring-type structures shed from the periphery of the jet.  ...  Acknowledgements The authors gratefully acknowledge the support of Dr Mitat Birkan and the AFOSR under grant number F49620-99-1-0092.  ... 
doi:10.1016/s0955-7997(03)00083-3 fatcat:t4rmvspmovapxb7lw7b5yjk4t4

Learn2Hop: Learned Optimization on Rough Landscapes [article]

Amil Merchant, Luke Metz, Sam Schoenholz, Ekin Dogus Cubuk
2021 arXiv   pre-print
We find that our optimizer learns a 'hopping' behavior which enables efficient exploration and improves the rate of low energy minima discovery.  ...  In this work, we propose adapting recent developments in meta-learning to these many-minima problems by learning the optimization algorithm for various loss landscapes.  ...  Acknowledgements We thank Jascha Sohl-dickstein and the Google Brain team for their help with the project.  ... 
arXiv:2107.09661v1 fatcat:lxtkaajmifdnpg7ww7gbk32jyq

Distributed data access and resource management in the D0 SAM system

I. Terekhov, R. Pordes, V. White, L. Lueking, L. Carpenter, H. Schellman, J. Trumbo, S. Veseli, M. Vranicar, S. White
Proceedings 10th IEEE International Symposium on High Performance Distributed Computing  
SAM (Sequential Access through Meta-data) is the data access and job management system for the D0 high energy physics experiment at Fermilab.  ...  The SAM system is being developed and used to handle the Petabyte-scale experiment data, accessed by hundreds of D0 collaborators scattered around the world.  ...  Acknowledgements The authors are grateful to the anonymous referees whose insightful comments have helped us improve the content and clarity of the paper. This work is sponsored by DOE contract No.  ... 
doi:10.1109/hpdc.2001.945179 dblp:conf/hpdc/TerekhovPWLLTVVWS01 fatcat:nog27wuxnvhsvj5mpdphfc2644
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