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Persistent URL http://purl.org/net/epubs/work/29534
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Record Id 29534
Title Performance and tuning of two distributed memory sparse solvers
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
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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