Pregled bibliografske jedinice broj: 1032982
Parallel block–selective algebraic multigrid in foam-extend
Parallel block–selective algebraic multigrid in foam-extend // PAMM : Proceedings in applied mathematics and mechanics, 19 (2019), e201900424, 2 doi:10.1002/pamm.201900424 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1032982 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Parallel block–selective algebraic multigrid in foam-extend
Autori
Uroić, Tessa ; Jasak, Hrvoje
Izvornik
PAMM : Proceedings in applied mathematics and mechanics (1617-7061) 19
(2019);
E201900424, 2
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
incompresible pressure-velocity coupling, algebraic multigrid, parallel multigrid
Sažetak
We present an extension of a well–known classic algebraic multigrid algorithm, where coarsening is based on selection of equations, for an implicitly coupled pressure– velocity system discretised by the finite volume (FV) method. The resulting coefficient matrix of the linear system is point– ordered, and there are 4 equations for each FV cell: three components of velocity and pressure. A significant challenge is posed in terms of parallelisation of the sequential coarsening process and calculation of coarse level matrix, using the Galerkin projection. In this paper we present the parallelisation strategy and performance of the block–selection AMG.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
