PAMOP Project: Petaflop Computations in Support of Experiments

B. M. McLaughlin (), C. P. Ballance (), M. S. Pindzola (), S. Schippers () and A. Müller ()
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B. M. McLaughlin: Queen’s University, Centre for Theoretical Atomic, Molecular and Optical Physics (CTAMOP),School of Mathematics & Physics
C. P. Ballance: Auburn University, Department of Physics
M. S. Pindzola: Auburn University, Department of Physics
S. Schippers: Justers-Liebig-Universität Giessen, Institut für Atom-und Molekülphysik
A. Müller: Justers-Liebig-Universität Giessen, Institut für Atom-und Molekülphysik

A chapter in High Performance Computing in Science and Engineering ’15, 2016, pp 51-74 from Springer

Abstract: Abstract Our computation effort is primarily concentrated in support of current and future measurements being carried out at various synchrotron radiation facilities around the globe and for charge transfer experiments. In our work we solve the Schrödinger or Dirac equation for the appropriate collision problem using the R-matrix or R-matrix with pseudo-states approach from first principles. The time dependent lattice (TDL) method is also used in our work on charge exchange. A brief summary of the methodology and ongoing developments implemented in the R-matrix suite of Breit-Pauli and Dirac-Atomic R-matrix codes (DARC) is presented. We illustrate vividly the sophistication level of large scale petaflop computations necessary to model accurately the spectra currently being measured at various synchrotron radiation facilities. The new Cray XC40 architecture installed at HLRS is playing a vital role in our computational effort.

Keywords: Photoionization Cross Section; Experimental Cross Section; Electron Impact Excitation; Advance Light Source; Charge Transfer Cross Section (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/978-3-319-24633-8_4

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