High Performance Computing of Three-Dimensional Finite Element Codes on a 64-bit Machine

Three dimensional Navier-Stokes finite element formulations require huge computational power in terms of memory and CPU time. Recent developments in sparse direct solvers have significantly reduced the memory and computational time of direct solution methods. The objective of this study is twofold....

Full description

Saved in:
Bibliographic Details
Published in:Journal of Applied Fluid Mechanics 2012-04, Vol.5 (2), p.123-132
Main Authors: Raju, M P, Khaitan, S K
Format: Article
Language:English
Subjects:
64-bit
Computational efficiency
Computational fluid dynamics
Computer applications
Computing time
Fluid flow
HSL MA78
Multifrontal
MUMPS
PARDISO
Performance evaluation
Random access memory
Solvers
UMFPACK
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Three dimensional Navier-Stokes finite element formulations require huge computational power in terms of memory and CPU time. Recent developments in sparse direct solvers have significantly reduced the memory and computational time of direct solution methods. The objective of this study is twofold. First is to evaluate the performance of various state-of-the-art sequential sparse direct solvers in the context of finite element formulation of fluid flow problems. Second is to examine the merit in upgrading from 32 bit machine to a 64 bit machine with larger RAM capacity in terms of its capacity to solve larger problems. The choice of a direct solver is dependent on its computational time and its in-core memory requirements. Here four different solvers, UMFPACK, MUMPS, HSL_MA78 and PARDISO are compared. The performances of these solvers with respect to the computational time and memory requirements on a 64-bit windows server machine with 16GB RAM is evaluated.
ISSN:1735-3572
1735-3645
DOI:10.36884/jafm.5.02.12174