Pursuing Scalability for hypre's Conceptual Interfaces

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The software library hypre provides high performance preconditioners and solvers for the solution of large, sparse linear systems on massively parallel computers as well as conceptual interfaces that allow users to access the library in the way they naturally think about their problems. These interfaces include a stencil-based structured interface (Struct); a semi-structured interface (semiStruct), which is appropriate for applications that are mostly structured, e.g. block structured grids, composite grids in structured adaptive mesh refinement applications, and overset grids; a finite element interface (FEI) for unstructured problems, as well as a conventional linear-algebraic interface (IJ). It is extremely important to … continued below

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Falgout, R D; Jones, J E & Yang, U M July 21, 2004.

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The software library hypre provides high performance preconditioners and solvers for the solution of large, sparse linear systems on massively parallel computers as well as conceptual interfaces that allow users to access the library in the way they naturally think about their problems. These interfaces include a stencil-based structured interface (Struct); a semi-structured interface (semiStruct), which is appropriate for applications that are mostly structured, e.g. block structured grids, composite grids in structured adaptive mesh refinement applications, and overset grids; a finite element interface (FEI) for unstructured problems, as well as a conventional linear-algebraic interface (IJ). It is extremely important to provide an efficient, scalable implementation of these interfaces in order to support the scalable solvers of the library, especially when using tens of thousands of processors. This paper describes the data structures, parallel implementation and resulting performance of the IJ, Struct and semiStruct interfaces. It investigates their scalability, presents successes as well as pitfalls of some of the approaches and suggests ways of dealing with them.

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PDF-file: 26 pages; size: 0.4 Mbytes

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  • Journal Name: ACM (Association for Computing Machinery) Transactions on Mathematical Software; Journal Volume: 31; Journal Issue: 3

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  • Report No.: UCRL-JRNL-205407
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 859911
  • Archival Resource Key: ark:/67531/metadc780729

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  • July 21, 2004

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Falgout, R D; Jones, J E & Yang, U M. Pursuing Scalability for hypre's Conceptual Interfaces, article, July 21, 2004; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc780729/: accessed June 1, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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