Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
Arrowhead decomposition for a block-tridiagonal system of linear equations. / Belov, Pavel; Nugumanov, Eduard; Yakovlev, Sergey.
в: CEUR Workshop Proceedings, Том 1482, 01.01.2015, стр. 447-452.Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
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TY - JOUR
T1 - Arrowhead decomposition for a block-tridiagonal system of linear equations
AU - Belov, Pavel
AU - Nugumanov, Eduard
AU - Yakovlev, Sergey
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The arrowhead decomposition method which allows efficient parallel solution of a blocktridiagonal system of linear equations is presented. The computational speedup with respect to the matrix sweeping algorithm is analytically estimated by taking into account the number of elementary operations of multiplication for the parallel and serial parts of the decomposition method. It is shown that the maximal speedup is achieved for the finite number of parallel processors. For a given size of the initial system of linear equations, the parameters of the computational system which give the maximal speedup are obtained. Computational experiments confirm the analytical estimations of the computational speedup.
AB - The arrowhead decomposition method which allows efficient parallel solution of a blocktridiagonal system of linear equations is presented. The computational speedup with respect to the matrix sweeping algorithm is analytically estimated by taking into account the number of elementary operations of multiplication for the parallel and serial parts of the decomposition method. It is shown that the maximal speedup is achieved for the finite number of parallel processors. For a given size of the initial system of linear equations, the parameters of the computational system which give the maximal speedup are obtained. Computational experiments confirm the analytical estimations of the computational speedup.
KW - Arrowhead decomposition method
KW - Block-tridiagonal matrix
KW - Computational speedup
KW - Matrix sweeping algorithm
KW - Parallel solution
KW - System of linear equations
UR - http://www.scopus.com/inward/record.url?scp=84954512125&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:84954512125
VL - 1482
SP - 447
EP - 452
JO - CEUR Workshop Proceedings
JF - CEUR Workshop Proceedings
SN - 1613-0073
T2 - 1st Russian Conference on Supercomputing Days 2015, RuSCDays 2015
Y2 - 28 September 2015 through 29 September 2015
ER -
ID: 36558691