An MPI implementation of the BLACS

Author

Deshpande, Vaibhav ; Sawyer, William

Author_Institution

Software Technol. Group, Swiss Center for Sci. Comput., Manno, Switzerland

fYear

1996

fDate

19-22 Dec 1996

Firstpage

463

Lastpage

468

Abstract

An MPI implementation of the Basic Linear Algebra Communication Subprograms (BLACS), an underlying layer of the ScaLAPACK library is presented. Use is made of a wide spectrum of functionality available in MPI to realize BLACS as succinctly as possible, thus making the implementation concise, but still yielding good performance. Some of the implementation details are discussed and the benchmark results for the ScaLAPACK LU factorization on several parallel architectures with different MPI libraries are presented. A performance comparison with other existing BLACS implementations is made and some conclusions are drawn from the results

Keywords

linear algebra; mathematics computing; message passing; parallel architectures; software libraries; software packages; software performance evaluation; BLACS; Basic Linear Algebra Communication Subprograms; MPI implementation; Message Passing Interface; ScaLAPACK library; benchmark; factorization; parallel architectures; performance; Collaborative software; Communication standards; Functional programming; Linear algebra; Message passing; Packaging; Parallel architectures; Scientific computing; Software libraries; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

High Performance Computing, 1996. Proceedings. 3rd International Conference on

Conference_Location

Trivandrum

Print_ISBN

0-8186-7557-8

Type

conf

DOI

10.1109/HIPC.1996.565864

Filename

565864