000021266 001__ 21266
000021266 005__ 20170522124346.0
000021266 04107 $$aeng
000021266 046__ $$k2017-05-15
000021266 100__ $$aBošanský, M.
000021266 24500 $$aON PARELLELIZATION OF LINEAR SYSTEM EQUATION SOLVER IN FINITE ELEMENT SOFTWARE

000021266 24630 $$n23.$$pEngineering Mechanics 2017
000021266 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021266 506__ $$arestricted
000021266 520__ $$2eng$$aNumerical modelling using high performance computers brings in new opportunities in finite element computations. The contribution focuses on comparing the efficiency of different existing libraries to solution of large, sparse, non-symmetric systems of linear equations, based on direct or iterative algorithms. In particular, the direct solver from SuperLU library (X.S. Li, 1999), iterative solver from Portable, Extensible Toolkit for Scientific Computation (PETSc) are compared. Additionally, the performance and scalability of parallel SuperLU solver is studied, using OpenMP (Chapman, 2008, Barney, 2014) and POSIX threads (Nicols, 1996) based on shared memory model. Also, the scalability of PETSc solver on distributed memory model using Message passing interface (MPI) (Pacheco, 1997) is evaluated. The paper shows that parallelization can efficiently exploit the power of modern available hardware and significantly reduce the computation time.

000021266 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021266 653__ $$aParallel computing, Memory, Direct solver, Iterative solver.

000021266 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021266 720__ $$aBošanský, M.$$iPatzák, B.
000021266 8560_ $$ffischerc@itam.cas.cz
000021266 8564_ $$s853753$$uhttps://invenio.itam.cas.cz/record/21266/files/0206.pdf$$yOriginal version of the author's contribution in proceedings, page 206, section SOL.
000021266 962__ $$r21225
000021266 980__ $$aPAPER