PCG: a software package for the iterative solution of linear systems on scalar, vector and parallel computers

Author

Joubert, Wayne ; Carey, Graham F.

Author_Institution

Comput. Res. & Applications, Los Alamos Nat. Lab., NM, USA

fYear

1994

fDate

23-25 May 1994

Firstpage

811

Lastpage

816

Abstract

The PCG package is a software system for solving systems of linear equations by means of preconditioned conjugate gradient (PCG)-type iterative methods on a variety of computer architectures. The software is designed to give high performance with a nearly identical user interface across different scalar, vector and parallel platforms, as well as across different programming models, such as shared-memory, data-parallel and message-passing programming interfaces. The basic features of the package are discussed, as well as techniques used to attain portability and high performance. Representative results for several computers are given

Keywords

conjugate gradient methods; equations; iterative methods; linear algebra; mathematics computing; parallel architectures; parallel programming; software packages; software portability; user interfaces; PCG; computer architectures; data-parallel programming interface; high performance software; iterative solution; linear equation systems; message-passing programming interface; parallel computers; preconditioned conjugate gradients; scalar computers; shared-memory programming interface; software package; software portability; user interface; vector computers; Computer architecture; Equations; Iterative methods; Packaging; Parallel programming; Software design; Software packages; Software performance; Software systems; User interfaces;

fLanguage

English

Publisher

ieee

Conference_Titel

Scalable High-Performance Computing Conference, 1994., Proceedings of the

Conference_Location

Knoxville, TN

Print_ISBN

0-8186-5680-8

Type

conf

DOI

10.1109/SHPCC.1994.296724

Filename

296724