Scaling Algebraic Multigrid Solvers: On the Road to Exascale

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Algebraic Multigrid (AMG) solvers are an essential component of many large-scale scientific simulation codes. Their continued numerical scalability and efficient implementation is critical for preparing these codes for exascale. Our experiences on modern multi-core machines show that significant challenges must be addressed for AMG to perform well on such machines. We discuss our experiences and describe the techniques we have used to overcome scalability challenges for AMG on hybrid architectures in preparation for exascale.

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PDF-file: 14 pages; size: 0.8 Mbytes

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Baker, A H; Falgout, R D; Gamblin, T; Kolev, T; Schulz, M & Yang, U M December 12, 2010.

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Algebraic Multigrid (AMG) solvers are an essential component of many large-scale scientific simulation codes. Their continued numerical scalability and efficient implementation is critical for preparing these codes for exascale. Our experiences on modern multi-core machines show that significant challenges must be addressed for AMG to perform well on such machines. We discuss our experiences and describe the techniques we have used to overcome scalability challenges for AMG on hybrid architectures in preparation for exascale.

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PDF-file: 14 pages; size: 0.8 Mbytes

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  • Presented at: Competence in High Performance Computing - CiHPC 2010, Schwetzingen, Germany, Jun 22 - Jun 24, 2010

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  • Report No.: LLNL-PROC-463941
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 1018825
  • Archival Resource Key: ark:/67531/metadc841187

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  • December 12, 2010

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 1, 2016, 6:41 p.m.

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Baker, A H; Falgout, R D; Gamblin, T; Kolev, T; Schulz, M & Yang, U M. Scaling Algebraic Multigrid Solvers: On the Road to Exascale, article, December 12, 2010; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc841187/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.