## Parallel solution of systems of linear equations generated by COMSOL 3.2 using the Sun Performance Library

Publication: Research › Report – Annual report year: 2006

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**Parallel solution of systems of linear equations generated by COMSOL 3.2 using the Sun Performance Library.** / Gersborg-Hansen, Allan; Dammann, Bernd; Aage, Niels; Poulsen, Thomas Harpsøe.

Publication: Research › Report – Annual report year: 2006

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*Parallel solution of systems of linear equations generated by COMSOL 3.2 using the Sun Performance Library*. Technical University of Denmark (DTU). MAT-report, no. 2006-05

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*Parallel solution of systems of linear equations generated by COMSOL 3.2 using the Sun Performance Library*. Technical University of Denmark (DTU). (MAT-report; No. 2006-05).

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### RIS

TY - RPRT

T1 - Parallel solution of systems of linear equations generated by COMSOL 3.2 using the Sun Performance Library

AU - Gersborg-Hansen,Allan

AU - Dammann,Bernd

AU - Aage,Niels

AU - Poulsen,Thomas Harpsøe

PB - Technical University of Denmark (DTU)

PY - 2006

Y1 - 2006

N2 - This note investigates the use of the Sun Performance Library for parallel solution of a system of linear equations generated by COMSOL 3.2. In many engineering disciplines this is a computational bottleneck for large problems which are often met in research practice. Most researches are primarily concerned with developing a proper (COMSOL) model rather than developing efficient linear algebra solvers which motivates this investigation of the efficiency of the coupling COMSOL + SPL. The technicalities of making such a coupling is described in detail along with a measure of the speedup for a testproblem run in 2D and 3D. Moreover this note quantifies the performance of COMSOL running on a Sparc ULTRA III processor. The study shows that for small problems such as debugging tasks, teaching exercises etc. the Sun computer is not competitive compared with a standard PC.

AB - This note investigates the use of the Sun Performance Library for parallel solution of a system of linear equations generated by COMSOL 3.2. In many engineering disciplines this is a computational bottleneck for large problems which are often met in research practice. Most researches are primarily concerned with developing a proper (COMSOL) model rather than developing efficient linear algebra solvers which motivates this investigation of the efficiency of the coupling COMSOL + SPL. The technicalities of making such a coupling is described in detail along with a measure of the speedup for a testproblem run in 2D and 3D. Moreover this note quantifies the performance of COMSOL running on a Sparc ULTRA III processor. The study shows that for small problems such as debugging tasks, teaching exercises etc. the Sun computer is not competitive compared with a standard PC.

BT - Parallel solution of systems of linear equations generated by COMSOL 3.2 using the Sun Performance Library

T3 - MAT-report

T3 - en_GB

ER -