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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Fizika / Physics (N002)
Author(s): Stepšys, Augustinas;Mickevičius, Saulius;Germanas, Darius;Kalinauskas, Ramutis Kazys
Title: HOTB: high precision parallel code for calculation of four-particle harmonic oscillator transformation brackets
Is part of: Computer physics communications. Amsterdam, Netherlands : Elsevier B.V., 2014, vol. 185, iss. 11
Extent: p. 3062-3064
Date: 2014
Keywords: Calculation;HOTB program;Harmonic oscillator
Abstract: This new version of the HOTB program for calculation of the three and four particle harmonic oscillator transformation brackets provides some enhancements and corrections to the earlier version (Germanas et al., 2010) [1]. In particular, new version allows calculations of harmonic oscillator transformation brackets be performed in parallel using MPI parallel communication standard. Moreover, higher precision of intermediate calculations using GNU Quadruple Precision and arbitrary precision library FMLib [2] is done. A package of Fortran code is presented. Calculation time of large matrices can be significantly reduced using effective parallel code. Use of Higher Precision methods in intermediate calculations increases the stability of algorithms and extends the validity of used algorithms for larger input values
Affiliation(s): Fizikos institutas
Fizikos katedra
Gamtos mokslų fakultetas
Kauno technologijos universitetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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