Performance and tuning of two distributed memory sparse solvers

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Persistent URL	http://purl.org/net/epubs/work/29534
Record Status	Checked
Record Id	29534
Title	Performance and tuning of two distributed memory sparse solvers
Contributors	PR Amestoy, I S Duff, J-Y L'Excellent, XS Li
Abstract	We examine the performance of two codes using direct methods to solve large sparse linear equations on distributed memory computers. The code SuperLU is a right-looking supernodal code, written in C, while MUMPS is written in Fortran 90 and uses a multifrontal technique. Both codes use MPI for message-passing. In this short paper, we consider the influence of the MPI buffer size and send and receive primitives on both codes and compare the performance of the factorization and solution phases of both codes on test examples from the PARASOL Project on a CRAY T3E-900.
Organisation	CCLRC
Keywords
Funding Information
Related Research Object(s):	32972
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Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Report	RAL Technical Reports RAL-TR-2001-004. 2001.		raltr-2001004.pdf	2001