Performance evaluation of two parallel, direct sparse solvers for an aeroacoustic propagation model


ÖZYÖRÜK Y. , Dizemen E.

Parallel Computational Fluid Dynamics, Parallel CFD 2007, Antalya, Turkey, 21 - 24 May 2007, pp.379-384 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1007/978-3-540-92744-0_47
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.379-384

Abstract

This paper deals with parallel performance assessment of two state-of-the-art and publicly available direct sparse matrix solvers, namely SuperLU and MUMPS, for solution of acoustic propagation and radiation through turbomachinery exhaust ducts on structured meshes. The aeroacoustic model is based on the linearized Euler equations written in frequency domain. Perfectly matched layer equations are used at the duct inlet and far-field boundaries. The governing equations and the boundary conditions are discretized using finite differences. The direct solution of the resulting linear system of equations has a very high demand particularly on computer memory. Therefore, a distributed memory computing approach is employed. It is demonstrated that the MUMPS solver is more suitable for the present type problems. © 2009 Springer-Verlag Berlin Heidelberg.