Performance study of LU factorization with low communication overhead on multiprocessors

F. Desprez; J. J. Dongarra; B. Tourancheau

doi:10.1142/S012962649500014X

Performance study of LU factorization with low communication overhead on multiprocessors

F. Desprez, J. J. Dongarra, B. Tourancheau

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8 Scopus citations

Abstract

In this paper, we make efficient use of asynchronous communications on the LU decomposition algorithm with pivoting and a column-scattered data decomposition to derive precise computational complexities. We then compare these results with experiments on the Intel iPSC/860 and Paragon machines and show that very good performances can be obtained on a ring with asynchronous communications.

Original language	English
Pages (from-to)	157-169
Number of pages	13
Journal	Parallel processing letters
Volume	5
Issue number	2
DOIs	https://doi.org/10.1142/S012962649500014X
State	Published - 1995
Externally published	Yes

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title = "Performance study of LU factorization with low communication overhead on multiprocessors",

abstract = "In this paper, we make efficient use of asynchronous communications on the LU decomposition algorithm with pivoting and a column-scattered data decomposition to derive precise computational complexities. We then compare these results with experiments on the Intel iPSC/860 and Paragon machines and show that very good performances can be obtained on a ring with asynchronous communications.",

author = "F. Desprez and Dongarra, {J. J.} and B. Tourancheau",

year = "1995",

doi = "10.1142/S012962649500014X",

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AU - Desprez, F.

AU - Dongarra, J. J.

AU - Tourancheau, B.

PY - 1995

Y1 - 1995

N2 - In this paper, we make efficient use of asynchronous communications on the LU decomposition algorithm with pivoting and a column-scattered data decomposition to derive precise computational complexities. We then compare these results with experiments on the Intel iPSC/860 and Paragon machines and show that very good performances can be obtained on a ring with asynchronous communications.

AB - In this paper, we make efficient use of asynchronous communications on the LU decomposition algorithm with pivoting and a column-scattered data decomposition to derive precise computational complexities. We then compare these results with experiments on the Intel iPSC/860 and Paragon machines and show that very good performances can be obtained on a ring with asynchronous communications.

UR - http://www.scopus.com/inward/record.url?scp=0029312016&partnerID=8YFLogxK

U2 - 10.1142/S012962649500014X

DO - 10.1142/S012962649500014X

M3 - Article

AN - SCOPUS:0029312016

SN - 0129-6264

VL - 5

SP - 157

EP - 169

JO - Parallel processing letters

JF - Parallel processing letters

IS - 2

ER -

Performance study of LU factorization with low communication overhead on multiprocessors

Abstract

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