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Development of Lattice QCD Simulation Code Set "Bridge++" on Accelerators

S. Motoki, S. Aoki, T. Aoyama, K. Kanaya, H. Matsufuru, Y. Namekawa, H. Nemura, Y. Taniguchi, S. Ueda, N. Ukita
2014 Procedia Computer Science  
Bridge++ covers popular lattice actions and numerical algorithms. The code set is constructed in C++ with an object oriented programming.  ...  We are developing a new code set "Bridge++" for lattice QCD (Quantum Chromodynamics) simulations. It aims at an extensible, readable, and portable workbench, while achieving high performance.  ...  Acknowledgment In addition to the authors of this paper, this project has been contributed by many of our colleagues, as listed in a document enclosed in the source code.  ... 
doi:10.1016/j.procs.2014.05.155 fatcat:hsi2i6ytabgejddhc4qzmw437i

National software infrastructure for lattice quantum chromodynamics

R C Brower, C E DeTar, R G Edwards, D J Holmgren, R D Mawhinney, W Watson, Y Zhang
2006 Journal of Physics, Conference Series  
We give a brief overview of the design of the data parallel API and its various components. We describe performance gains achieved in the past year.  ...  We have developed a robust, portable data-parallel code suite.  ...  of lattice fields.  ... 
doi:10.1088/1742-6596/46/1/019 fatcat:dkwiknactjdr5ig3tr52qml2si

Page 7129 of Mathematical Reviews Vol. , Issue 2003i [page]

2003 Mathematical Reviews  
An analogy is made with lattice gauge theory, in which non- trivial parallel transport around closed loops is associated with a reduction in the probability of the field configuration.  ...  , Daniele (E-VIGO2-APT; Orense) Reality, measurement and locality in quantum field theory.  ... 


M. Weigel, A. Arnold, P. Virnau
2012 The European Physical Journal Special Topics  
A rather long history of such machines exists in particular in lattice field theory, most recently featuring the QPACE machine based on the Cell processor, and in astrophysical particle simulations, where  ...  from lattice gauge theory to materials science, today the simulational approach has been firmly established as a third pillar of scientific research beside experiment/observation and analytical theory  ...  A rather long history of such machines exists in particular in lattice field theory, most recently featuring the QPACE machine based on the Cell processor, and in astrophysical particle simulations, where  ... 
doi:10.1140/epjst/e2012-01633-0 fatcat:kutoljli3fa5vhwylf2fszofsq

Lattice QCD Calculations on Commodity Clusters at DESY [article]

A. Gellrich, D. Pop, P. Wegner, H. Wittig, M. Hasenbusch, K. Jansen
2003 arXiv   pre-print
suitable for large Lattice Gauge Theory applications.  ...  Lattice Gauge Theory is an integral part of particle physics that requires high performance computing in the multi-Tflops regime.  ...  of lattice field theory.  ... 
arXiv:physics/0306090v2 fatcat:a5gpn3n6mfbe7gtmhihjnobspe

Flow and Tilt-Induced Orientation of the Moving Vortex Lattice in Amorphous NbGe Superconducting Thin Films

Nobuhito Kokubo, Tetsuya Yoshimura, Bunjyu Shinozaki
2013 Journal of the Physical Society of Japan  
Employing a mode-locking technique, we detect how moving lattices deform and their orientation changes as a magnetic field is tilted from normal to the film surface.  ...  The orientation and deformation of moving vortex lattices in the flux-flow state have been investigated in amorphous superconducting NbGe thin films.  ...  This results in the parallel orientation of moving lattices.  ... 
doi:10.7566/jpsj.82.094702 fatcat:thkcnvpp6bh7hkxl4nlbh6h6rm

Atomic-environment-dependent thickness of ferroelastic domain walls [article]

Mingqiang Li, Xiaomei Li, Yuehui Li, Heng-Jui Liu, Ying-Hao Chu, and Peng Gao
2019 arXiv   pre-print
Remarkably, wider domain walls about two-unit cells in thickness are also observed for those domains walls are coupled with dislocations and underwent a compressive strain.  ...  Here, we determine the atomic structure of ferroelastic domain walls and precisely measure the polarization and domain wall thickness at picometer scale using annular bright field imaging in an aberration-corrected  ...  (d) The corresponding lattice rotation map (ωxy). The insets in (b)-(d) magnify strain field and lattice rotation around the dislocation core. S1. Pb-O bond length map of DW (A)Fig. S1.  ... 
arXiv:1910.02447v1 fatcat:wvcgh3t3hfc5pcsotlxl3vtn7m

Analysis of the ESR spectrum of manganese (II) in the layered compound Cd2P2Se6

D.A. Cleary, A.H. Francis, E. Lifshitz
1986 Chemical Physics  
The Mn2+ is in a trigonal environment coordinated to six selenium atoms.  ...  The Mn(II) crystal-field splitting parameter D increases approximately eight-fold from that in the sulfide lattice.  ...  In a perfect octahedral environment D is identically zero, whereas in the planar environment of a porphyrin ring, / D I can be as large as 20-30 cm-' for Fe3+ [ll] .  ... 
doi:10.1016/0301-0104(86)87044-6 fatcat:fsy6al5hp5d3hiindri3rewnc4

Page 3284 of Mathematical Reviews Vol. , Issue 98E [page]

1998 Mathematical Reviews  
A single ion is isolated from its environ- ment in an ion trap.  ...  exists a special scalar field (the a- field) that is capable of interacting with any micro-system, this interaction being very special in the sense that it does not change the energy of a micro-system  ... 

Excitation of confined modes on particle arrays [article]

Xesús Manoel Bendaña, Giuseppe Pirruccio Centre for Nanophotonics, FOM Institute AMOLF c/o Philips Research Laboratories, Eindhoven, The Netherlands, COBRA Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands, Optoelectronics Research Centre, University of Southampton, Southampton, UK)
2012 arXiv   pre-print
Ordered 2D lattices of monodispersive nanoparticles are manufactured, embedded in a silica matrix, and exposed to evanescent prism-coupling illumination, leading to dark features in the reflectivity, which  ...  We find remarkable agreement between theory and experiment in the frequency-momentum dispersion of the resonances.  ...  In Fig. 2 (a) we show the calculated reflection coefficient of arrays of gold nanodisks placed in a symmetric SiO 2 environment.  ... 
arXiv:1209.2626v1 fatcat:tucdothywnhzlbhhjb33cmd6ym

Ray propagation in a random lattice: a maximum entropy, anomalous diffusion Process

S. Marano, M. Franceschetti
2005 IEEE Transactions on Antennas and Propagation  
The typical model for diffusion in disordered systems is that of a random walk that proceeds in discrete steps over a random lattice, where not all the nearest sites can be reached at each step.  ...  Ray propagation in percolating lattices has been recently proposed as a model for urban area propagation of radio waves. We discuss implications of our results in this scenario.  ...  The percolation lattice has been proposed as a model of urban area environments in [9] .  ... 
doi:10.1109/tap.2005.848475 fatcat:nrordj5egfb7ppmgwvd66472mu

Machines for lattice gauge theory

Paul B. Mackenzie
1989 Computer Physics Communications  
This has led to the development of massively parallel computers dedicated to lattice gauge theory.  ...  The most promising approach to the solution of the theory of strong interactions is large scale numerical simulation using the techniques of lattice gauge theory.  ...  Acknowlegment s I would like thank the members in the projects described here for conversations and correspondence.  ... 
doi:10.1016/0010-4655(89)90190-2 fatcat:2l6kfj744fb73nxexcbgsdjgde

Formation of Engineering Thinking in Multilevel Architectural Education

Margarita Perkova, Lyudmila Kolesnikova, Elena Korotun
2018 Key Engineering Materials  
The methods of training specialists, their adaptation to the conditions of professional work in the learning process are considered.  ...  The issues of the development of engineering thinking in the training of architects, starting with pre-university training at school, are considered; the optimal list of disciplines and their content within  ...  Urbanized environment often This theory served a basis for a new interdisciplinary field becomes uncomfortable and sometimes hostile to human. of science namely synergetics, which was "engaged in the Searching  ... 
doi:10.4028/ fatcat:hoo4m3qdvvglle25h6cmnwutay

Excitation of confined modes on particle arrays

X. M. Bendaña, G. Lozano, G. Pirruccio, J. Gómez Rivas, F. J. García de Abajo
2013 Optics Express  
Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of  ...  of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in  ...  As expected from the calculations of Fig. 2 for a symmetric environment, the resonance appears close to the light line and nearly parallel to it, specially for the smallest particles.  ... 
doi:10.1364/oe.21.005636 pmid:23482137 fatcat:o2zgicyl7fdyzghf5cyv7l5i3u

Accelerating the Simulations of the Ising Model by the GPU under the CUDA Environment

Xing Lu, Jing Cai, Peidong Cui, Wei Zhang
2011 International Journal of Modeling and Optimization  
By implementing the checkerboard algorithm, results are obtained up to 54, 62 and 68 times faster on the GPU than on a current CPU core for the honeycomb, square and triangular lattice respectively.  ...  We apply this technology to Monte Carlo simulations of the 2D and 3D lattice Ising models.  ...  In the CUDA environment [15] , a CPU is used as a host while a GPU treated as a coprocessor to the host CPU is viewed as a parallel computing device.  ... 
doi:10.7763/ijmo.2011.v1.72 fatcat:vgzdghvobbhfzbha77zijwg6wi
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