Analysis, tuning and comparison of two general sparse solvers for distributed memory computers

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We describe the work performed in the context of a Franco-Berkeley funded project between NERSC-LBNL located in Berkeley (USA) and CERFACS-ENSEEIHT located in Toulouse (France). We discuss both the tuning and performance analysis of two distributed memory sparse solvers (superlu from Berkeley and mumps from Toulouse) on the 512 processor Cray T3E from NERSC (Lawrence Berkeley National Laboratory). This project gave us the opportunity to improve the algorithms and add new features to the codes. We then quite extensively analyze and compare the two approaches on a set of large problems from real applications. We further explain the main differences ... continued below

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Amestoy, P.R.; Duff, I.S.; L'Excellent, J.-Y. & Li, X.S. June 30, 2000.

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Description

We describe the work performed in the context of a Franco-Berkeley funded project between NERSC-LBNL located in Berkeley (USA) and CERFACS-ENSEEIHT located in Toulouse (France). We discuss both the tuning and performance analysis of two distributed memory sparse solvers (superlu from Berkeley and mumps from Toulouse) on the 512 processor Cray T3E from NERSC (Lawrence Berkeley National Laboratory). This project gave us the opportunity to improve the algorithms and add new features to the codes. We then quite extensively analyze and compare the two approaches on a set of large problems from real applications. We further explain the main differences in the behavior of the approaches on artificial regular grid problems. As a conclusion to this activity report, we mention a set of parallel sparse solvers on which this type of study should be extended.

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OSTI as DE00776597

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  • Other Information: PBD: 30 Jun 2000

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  • Report No.: LBNL--45992
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/776597 | External Link
  • Office of Scientific & Technical Information Report Number: 776597
  • Archival Resource Key: ark:/67531/metadc718154

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  • June 30, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 5, 2016, 1:10 p.m.

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Amestoy, P.R.; Duff, I.S.; L'Excellent, J.-Y. & Li, X.S. Analysis, tuning and comparison of two general sparse solvers for distributed memory computers, report, June 30, 2000; California. (digital.library.unt.edu/ark:/67531/metadc718154/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.